scholarly journals DISTURBANCE OF IRON METABOLISM AND ULTRASTRUCTURAL FEATURES OF THE GINGIVA IN PATIENTS WITH Β-THALASSEMIA MAJOR

Author(s):  
Ramida Vaqif qizi Shadlinskaya ◽  
E. K Gasimov ◽  
S. A Israfilova

Introduction: β-thalassemia major is a hereditary blood disease, a main pathogenetic factor of which is the disruption of the synthesis of β-chains of hemoglobin. Inevitable metabolic disorders that occur during regular blood transfusion form an additional risk of damage and cellular modification of organs and tissues, including the oral cavity. Aim: determination of the pathogenetic role of iron metabolism disorder in the development of chronic inflammatory periodontal diseases in patients with β-thalassemia. Material and methods: 12 patients with β - thalassemia major who had periodontal diseases were examined in the Republican Center of Thalassemia in Baku (average age is 18 ± 1.3 years). The control group consisted of 16 somatically healthy individuals with intact gingiva tissues (the average age is 18.0 ± 0.7 years). Serum Iron, ferritin, hepcidin, total iron-binding capacity (TIBC), level of Il2, Il6, Il10, TNFα were measured from peripheral blood samples. To determine the ultra-structural study of the periodontal tissues in patients with β-thalassemia major, the method of electron microscopy studies of gingiva biopsies was used. Results of the study: The study revealed an increase in the level of serum iron and ferritin against the background of a progressively decreasing TIBC in patients with β-thalassemia major. Also activation of pro-inflammatory cytokines - TNFα, Il6, Il10 was observed in homozygous patients. Metabolic indicators are compared with ultrastructural features of cellular elements of a gum. Signs of accumulation of iron in cellular elements both of its own plate and of the epithelial cover were compared. The presence of iron was recorded in immunocompetent cells - macrophages and lymphocytes. Conclusion: Summarizing the data obtained, we can conclude that deproteinization of ferritin cores and their detection both in the cytoplasm and in the nucleoplasm of immunocompotent cells leads to irreversible degenerative changes in cellular elements of the gingiva. The authors link the development of the generalized inflammatory - degenerative process in the periodontium with revealed exchange -structural violations.

Blood ◽  
1962 ◽  
Vol 19 (3) ◽  
pp. 359-378 ◽  
Author(s):  
MARION E. ERLANDSON ◽  
BEATRICE WALDEN ◽  
GERTRUDE STERN ◽  
MARGARET W. HILGARTNER ◽  
JACQUELINE WEHMAN ◽  
...  

Abstract 1. Results of studies of gastrointestinal absorption of ferrous iron in normal children and those with heterozygous thalassemia were similar. 2. In one patient with absent erythropoiesis but severe anemia, no increase in the amount of iron absorbed was noted. 3. In sickle cell-hemoglobin C disease and hereditary spherocytosis having only slight anemia in the presence of increased erythropoiesis, normal amounts of iron were absorbed. 4. Patients with sickle cell anemia and thalassemia major in whom there was active erythropoiesis and marked anemia absorbed abnormally large amounts of iron. The amount absorbed by individuals with the latter disease could be reduced by administration of transfusions and concomitant suppression of erythropoiesis. 5. Usual values for serum iron and latent iron-binding capacity in several congenital hemolytic syndromes have been presented and their significance discussed. 6. No specific effect on absorption was noted by increased or reduced amounts of tissue or serum iron or by reduced or increased latent iron-binding protein.


2020 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Diah Hermayanti ◽  
Fathiyah Syafitri

Background : Iron deficinecy can cause anemia which affect health and work productivity. Moringa oleifera leaves contain a lot of iron and vitamin C, are thought to increase serum iron levels, transferin saturation, and improve total iron binding capacity.Objectives : To determine the  effectiveness of Moringa oleifera lam. leaf extract on serum iron levels, transferin saturation, and total iron binding capacity in white rats (Rattus novergicus strain wistar) given a diet low in iron (Fe).Materials and methods : true experimental research using post test only control group design. The object of theis study was thirty male white mice (Rattus novergicus strain wistar) who were given a low iron diet. The study was divided into negative control group, positive control, treatment groups with a dose of Moringa leaf extract 400 mg/kg BW, 800 mg/kgBW, 1,600 mg/kg/BW, an the ferro fumaras control group (FF) 175 mg/200 BW.Results and discussion : Multivariate manova serum iron 0.001 (p<0.05), TBC 0.19 (P>0.05), and transferin saturation 0.001(p<0.05). In the post Hoc Tukey the mean serum iron and transferin saturation appeared to differ significant in the negative control group with all the other treatment groups, but did not show a significant diffrence beetwen the positive control group, FF Group, and the treatment groups.Conclusion : The adminstration of Moringa oleifera leaf extractwas less significant in improving serum iron levels, transferin saturation, and total iron binding capacity of male white mice induced by a low iron diet.


2009 ◽  
Vol 37 (06) ◽  
pp. 375-378 ◽  
Author(s):  
Z. Metcitoglu ◽  
M. Ulgen ◽  
E. Borum ◽  
E. Temizel ◽  
S. Kasap ◽  
...  

Summary Objective: The purpose of the study was to evaluate the results of routine haematological, serum iron and iron binding capacity analyses in cattle with Mycobacterium avium subsp. paratuberculosis (MAP) infection. Material and methods: Thirty-eight cows were included in the study. An ELISA for MAP, intradermal Johnin test and microscopic examination of the animals faecal smears for acid fast organisms were performed. According to the results 19 cows (4–8 years old) were found positive and 19 cows (4–7 years old) from the same herd were negative and served as control group. In all cows routine haematological values as well as serum iron level and iron binding capacity were evaluated. Results: When compared with control animals, routine haematological values including haematocrit, haemoglobin and erythrocyte counts were significantly (p < 0.05) lower in positive cows. Also serum iron level (p < 0.01) and iron binding capacity (p < 0.01) were significantly lower in positive cows than in the control group. Conclusion: As a result, these parameters can be important for the mechanism of the pathogenesis of paratuberculosis.


Author(s):  
Eman M. Shahy ◽  
Khadiga S. Ibrahim ◽  
Heba Mahdy-Abdallah ◽  
Mona M. Taha ◽  
Amal Saad-Hussien ◽  
...  

Abstract Background Exposure to organic solvents (OS) adversely affects different body systems, the central and peripheral nervous systems being the most susceptible ones. Objectives This study investigated the role of iron in association with some neurotransmitters for diagnosis of neurotoxicity of OS. Methods The study included 90 workers, 50 occupationally exposed to OS and 40 representing control group. Blood samples were collected from the included subjects for determination of serum iron, total iron binding capacity (TIBC), serotonin and gamma-aminobutyric acid (GABA). Results Revealed reduction in serotonin level and serum iron. However, the elevation in GABA and TIBC was observed. The duration of exposure was significantly correlated with iron and serotonin while it was positively correlated with GABA and TIBC. Conclusions Elevated GABA and TIBC with decreased serotonin and serum iron can be used as early diagnostic measures to detect the neurotoxic effects of OS.


2004 ◽  
Vol 20 (6-10) ◽  
pp. 119-122 ◽  
Author(s):  
Mehmet Akdogan ◽  
Fatih Gultekin ◽  
Mustafa Yontem

Aim: The effect of Mentha piperita (Labiatae) and Mentha spicata (Labiatae) teas, which contain different phenol compounds, on iron metabolism was studied. These teas grow in different areas of the city of Isparta, Turkey. These herbals were given to the rats in tea. Methods: Forty-eight male Wistar albino rats weighing 200-250 g were used for this study. The rats were divided into four groups of 12 animals: Group I received no herbal tea (control group); Group II received 20 g/L M. piperita tea; Group III received 20 g/L M. spicata tea; Group IV received 40 g/L M. spicata tea. Herbal teas were prepared daily and provided at all times to the rats over 30 days as drinking water. Results: M. piperita tea caused a decrease in serum iron and ferritin levels P <0.05), and caused an increase in unsaturated iron-binding capacity (UIBC) P <0.01). M. spicata tea caused no significant change in serum iron, ferritin levels and UIBC P <0.05). Conclusion: Both herbal teas inhibited Fe absorption. Inhibition caused by M. spicata tea was dose dependent. Therefore, when drinking these teas, their effect should be considered, especially for children and anemic patients.


Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 2105-2105
Author(s):  
Christine E. McLaren ◽  
Stela McLachlan ◽  
Chad P. Garner ◽  
Chris D. Vulpe ◽  
Victor R. Gordeuk ◽  
...  

Abstract Abstract 2105 The existence of multiple inherited disorders of iron metabolism in man, rodents and other vertebrates suggests genetic contributions to iron deficiency. We hypothesized that common variants in genes involved in iron metabolism may modulate susceptibility or resistance to the development of iron deficiency in humans. To examine the association between single nucleotide polymorphisms (SNPs) in key genes involved in iron metabolism pathways, we previously performed a genome-wide association study using DNA collected from white men aged ≥25 y and women ≥50 y in the Hemochromatosis and Iron Overload Screening (HEIRS) Study with serum ferritin (SF) ≤12 μg/L (cases) and controls (SF >100 μg/L in men, SF >50 μg/L in women). We now report on a multiethnic follow-up association study of HEIRS participants. Candidate SNPs were identified from our GWAS and the scientific literature. Population samples of whites, African Americans, Hispanics, and Asians from the U.S. and Canada were analyzed separately for association between SNPs and case-control status and each of seven quantitative outcomes including serum iron, total iron-binding capacity (TIBC), unsaturated iron-binding capacity (UIBC), transferrin saturation, SF, serum transferrin receptor, and body iron. There were 1084 white (357 cases, 727 controls), 153 Asian (51 cases, 102 controls), 221 African American (77 cases, 144 controls) and 233 of 239 Hispanic individuals (79 cases, 160 controls) that passed quality control. For the African-American and Hispanic samples, ancestry proportions were estimated based on genotypes of ancestry informative markers. Regression analysis was used to examine the association between case-control status and quantitative serum iron measures and 1134, 1115, 1113 and 1134 SNP genotypes in the white, African-American, Hispanic, and Asian population samples, respectively. Model predictors included age, sex, the estimated ancestry proportion (for African American and Hispanic only), genotype, and measured covariates that showed nominally significant associations with the outcome. Three chromosomal regions showed evidence of association across multiple populations, including SNPs in the TF gene on chromosome 3q22, the TMPRSS6 gene on chromosome 22q12, and loci on chromosome 18q21. SNP rs1421312 in TMPRSS6 was associated with serum iron in whites (p=4.7×10−7) and was replicated in African Americans (p=0.0012).Twenty SNPs in the TF gene region were significantly associated with TIBC in the white sample (p<4.4×10−5); six SNPs were replicated in other ethnicities (p< 0.01). SNP rs10904850 in the CUBN gene on 10p13 was significantly associated with serum iron in the African-American sample (P=1.0×10−5). Mutations in the TMPRSS6 gene have been implicated in iron-refractory iron deficiency anemia through linkage studies. We found a novel SNP in TMPRSS6 that was associated with serum iron in whites and replicated in African Americans, suggesting a role for this SNP in increasing the risk of iron deficiency in affected persons. Our results confirm known associations with iron measures and give evidence of their role in different ethnic groups, a unique aspect of this study, suggesting origins in a common founder. Disclosures: No relevant conflicts of interest to declare.


2019 ◽  
Vol 64 (3) ◽  
pp. 274-282
Author(s):  
M. T. Abbasova ◽  
A. M. Gadzhiev

Introduction. The intensive development of radio and electrical communications, as well as various electronic devices, leads to the electromagnetic pollution of the environment.Aim. In this work, the authors set out to study the serum iron parameters of rats exposed to chronic electromagnetic radiation (EMR) of the decimeter range.Materials and methods. The research was carried out on rats that were divided into experimental and control groups. The experimental group was further divided into 4 subgroups of 10 animals each, which were subsequently exposed to electromagnetic radiation at a frequency of 460 MHz (Volna-2 apparatus) for 1, 2, 3 and 4 weeks. The control group (10 rats) was exposed to pretend irradiation, with the device being turned off. The following parameters were estimated: serum iron (SI), total iron-binding capacity (TIBC) and unsaturated iron-binding capacity (UIBC) of serum, transferrin saturation (TS), as well as serum concentrations of transferrin, haptoglobin, malondialdehyde and lipid hydroperoxides.Results. Differences in the SI concentration were found in the subgroups of animals exposed to radiation for 3 and 4 weeks (44.1 ± 3.1 μmol/l and 56.8 ± 4.4 μmol/l, respectively), as compared to the control group (30.5 ± 3.3 μmol/l). In experimental animals, TIBC increased by 41 % (p <0.05) — relative to the control group (110.8 ± 10.1 μmol/l) — only following 3 weeks of irradiation (156.2 ± 18.2 μmol/l), with a decrease in TIBC to 123.6 ± 16.4 μmol/l being noted during the 4th week. The concentration of transferrin increased from 45.6 ± 8.0 μmol/l (control) to 81.0 ± 11.5 μmol/l during the 3rd week of radiation exposure, with a decrease to 55.9 ± 6.7 μmol/l being observed during the 4th week. TS increased from 27.5 % (control) to 45.9 % only following 4 weeks of irradiation. The content of lipid hydroperoxides and malondialdehyde in the blood of irradiated rats was higher, as compared to the control animals. The serum concentration of haptoglobin amounted to 26.7 % in the control group, reaching 53.8 mg % and 47.8 mg % following 3 and 4 weeks of exposure, respectively.Conclusion. The total chronic exposure to decimetric EMR produces an oxidising effect on organisms. 


Sign in / Sign up

Export Citation Format

Share Document