Heavy metals, due to their ability to bioaccumulate and are highly toxic even in low concentrations, are the most dangerous environmental pollutants, especially in industrialized countries. The purpose of the study was to evaluate the degree of cadmium accumulation, as well as the expression of the Mt1a and Mt2a genes, in the kidneys of rats using two experimental models of subchronic intoxication with cadmium chloride. A total of 80 adult white outbred rats of both sexes were equally distributed into four groups: a control group (negative control), group 1 (0.001 mg/kg/day CdCl2), group 2 (0.01 mg/kg/day CdCl2), 3rd group (0.1 mg/kg/day CdCl2). After three months of exposure, 10 animals (5 males and 5 females) were randomly selected from each group and euthanized, followed by kidney samples for cadmium analysis and gene expression assessment. The remaining animals (n = 40) were left for an additional 30 days without treatment, before being sacrificed to collect tissue. The results showed that 1 month after cadmium withdrawal, the processes of redistribution of the metal in the body are still ongoing, which is expressed in a greater accumulation of cadmium in the kidneys. We also recorded an increase in the Mt1a gene expression and a decrease in the Mt2a gene expression in the kidneys of animals that went through the remission stage compared to animals without it. These data suggest that even after Cd withdrawal, there may be long-term negative effects on the kidneys.
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Obesity is recognized as a multifactorial health condition characterized by excess body fat accumulation. Orlistat is a well-known effective anti-obesity therapeutic drug, however, like many other medications on the market, it has certain unpleasant side effects. Medical herbs have recently acquired popularity in the treatment of obesity. The current project's intention was to evaluate the effect of treatment with Artemisia annua extract (AAE) to ameliorate hepato-renal dysfunction in obese rats. 40 male Sprague Dawley (SD) rats were divided into 4 groups (n = 10). The 1st group (Gp1) served as a negative control, and Gp2 was used as a positive control and given a high-fat diet (HFD) for a period of 12 weeks. For a period of 8 weeks, Gp3 and Gp4 received HFD and daily treatments of orlistat (30 mg/kg) or AAE (150 mg/kg), respectively. Hematological, biochemical, and histopathological parameters were determined. The results demonstrated that obese rats, Gp2, had hepato-renal impairment. Moreover, hepato-renal dysfunctions were exacerbated when orlistat was administered to obese rats of Gp3. In contrast, AAE-treated obese rats, Gp4, have shown alleviated hematological changes and resulted in considerable improvements in hepato-renal function. Taken together, AAE administration demonstrated potential ameliorative effects against hepato-renal dysfunctions in obese rats when compared to treatment with orlistat.
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Herniated (prolapsed) discs HD is a multifactor disease that afflicts around 9% of the global population and occurs when the nucleus pulposus NP bulges and pushes on the ruptured annulus fibrosus AF, releasing substances that may irritate the surrounding nerves and cause inflammation that leads to extensive histopathological and immunological changes. The aim of this study is to demonstrate the etiological role of IL-10, IL-17 levels, CD4+, and CD68 in the pathogenesis of herniated disc in Iraqi patients. The immunohistochemical analysis was performed on 30 excised HD specimens taken during endoscopic discectomy, and stored in the fixative solution (formalin 10%). Cytokines (IL-10 and IL-17) were measured by using their Enzyme-Linked Immunosorbent Assay ELISA kits, in sera of 40 patients who were diagnosed with HDs as a case group, in addition to 20 healthy as a control group. The results revealed that the CD4+ expression was negative in 70% of the HD samples, while only 8 HD samples were negative for CD68 expression. On the other hand, results of ELISA analysis recorded high levels of IL-10 with low levels of IL-17 in HD patients sera compared with control sera. According to the above it can concluded that immunohistochemical analysis of HD tissues showed infiltration of CD4+ and CD68. Also compared to controls high levels of IL-10 in HD samples combined with low levels of IL-17.
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Breast cancer (BC) is one of the most common causes of death among women in the world. This study investigated the role of global DNA methylation (5mC) and hypoxia-inducible factor 1 alpha (HIF-1α) levels in BC disease progression. Blood samples were collected from 40 patients with benign breast tumors, 40 patients with malignant breast tumors, and 40 healthy subjects. Patients with malignant breast tumors were divided into two groups: women in stage II (low-level), and patients in stages III and IV (high-level). Genomic DNA was isolated from whole blood samples from the subjects and used for global DNA methylation. Furthermore, the levels of HIF-1α expression were measured. The results showed that the levels of 5mC in patients with BC and benign breast tumors were considerably lower (0.538 ± 0.03 and 0.432 ± 0.04%, respectively), compared to the control (0.619 ± 0.05%). Furthermore, there was a significant (p ≤ 0.05) decrease in levels of 5mC in BC patients at stages III and IV compared to control. However, there were no significant differences between low-level and high-level stages. The HIF-1α levels of patients in both the benign breast tumors and BC were insignificant (923.35 ± 72.42 and 1386.03 ± 102.01pg/ml, respectively), compared to the control (825.5 ± 62.36 pg/ml). Although, BC patients at low levels showed no significant difference in HIF-1α levels compared with patients at high levels. The findings indicated that variations in 5mC levels across different stages and types of breast tumors may serve as a prognostic indicator for the development of BC and also implicated HIF-1α in the development of BC.
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This study was designed to assess the harmful impact of Duprost on the testes of experimental animals. The animals were divided into 3 categories: control, acute, and chronic; the last two were further divided into subgroups. All acute subgroups were given a lonely oral dosage of 0.5, 0.12, 0.08, and 0.04 mg/kg for 24 hours. The chronic subgroups were given a daily dosage of 0.12, 0.08, 0.04 mg/kg for 42 days. The sections of treated testes of acute and chronic sets showed pathological alterations mainly in dosages (0.12 mg/kg and 0.08 mg/kg). The higher dosages cause cellular depletion, necrosis and lysis of the testicular interstitium, hyperplasia and increased thickness of the interstitium. Moreover, there was marked hypertrophy, marked tubular dilation and deterioration with severe degeneration and necrosis of lining epithelium with a loss of stereocilia in epididymis tissue.
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Ionising radiation from radiotherapy can cause thyroid disease, autoimmune antibodies, and haematological invasion. Ionising radiation affects the immune system, and surpassing the body's tolerance can damage the hematopoietic system, causing early symptoms and serious consequences. The study used ELISA technique to determine autoantibodies and thyroid hormones in whole blood samples from Iraqi physician in Baghdad city for nuclear medicine which exposed daily to radiotherapy according to their routine job. CBC were also determined using autoanalyzer. A group of healthy control patients was also studied. Blood samples from Iraqi doctors who were routinely exposed to radiation were examined, a statistically significant decrease (P ≤ 0.01) in the serum levels of the Triiodothyronine (T3) and Thyroxine 4 (T4) and a statistically significant elevation (P ≤ 0.01) of Anti-Thyroid peroxidase Ab (Anti-TPO Ab), Anti-Thyroglobulin Ab (anti-Tg Ab), and antinuclear antibody (ANA) serum levels in female were seen in contrast to the healthy control group. Compared to healthy controls, female workers had less RBCs and Hb. For that, it can be concluded that the exposure to radiotherapy is effective in female more than male workers in Baghdad city for nuclear medicine which can be due to the effect of radiation low dose on female autoimmune system.
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This review analyzes current trends in the development of traditional (open-loop) methods of non-invasive brain stimulation, as well as promising directions for the development of closed-loop methods of adaptive neurostimulation. The main focus is on studies using non-invasive magnetic and electrical stimulation, as well as acoustic and audiovisual stimulation. The possibilities and prospects for using these technologies as a tool in carrying out a wide range of rehabilitation procedures are analyzed. The results of the authors' own research in this direction are presented.
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The effect of gas-discharge plasma radiation on the biochemical parameters of blood and urine of intact animals and animals with acute alcohol intoxication was investigated. Measurements of the content of medium-mass molecules (MMM), creatinine, urea, glucose, lactate and hemoglobin in the blood and 14 physicochemical indicators of the urine test were carried out. Acute alcohol intoxication (AAI) was simulated by intraperitoneal injection of 33% ethanol at a dose of LD50. The treatment was carried out by an experimental pulsed (10 Hz) device generating radiation of spark discharge plasma. It was revealed that exposure to plasma radiation does not lead to changes in the biochemical parameters of blood and urine of intact animals. In the model of AAI, the development of protein-creatininia, urobilinogenuria, and an increase in the specific gravity of rat’s urine was observed. The total level of MMM and hemoglobin in the blood increased, lactic acidosis developed. After exposure to plasma radiation in animals with AAI, blood and urine parameters normalized, which is probably associated with the activation of the organism's adaptive and antioxidant reserves. Thus, the positive effect of spark discharge plasma radiation on the organism during acute ethanol intoxication has been shown.
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The heritability of human psychological well-being ranges from 36 to 48%. GWAS conducted between 2016 and 2019 identified 364 SNPs significant for well-being. A significant association with psychological well-being has been shown for the APOE, OXTR, OXT, NMUR2, CNR1, CRHR1, and CYP19A1 genes. The greatest influence on psychological well-being is exerted by allelic variants of the MAYA, 5-HTT, СOMT genes, and the CTRA gene group (conservative transcriptional response to adversity). Brain functioning is influenced by the peculiarities of VNTR distribution in the regulatory regions of the 5-HTT, SLC6A3, AVPR1A, FUS, OXT, PARK7, POMC, TACR3, TRPV1 and TRPV3 genes. These features are due to the individual distribution of SVA (SINE-VNTR-Alu) retroelements, which belong to transposons that are drivers of epigenetic regulation. Features of activation of retroelements located in the regulatory regions of genes may affect the individual level of well-being. This is evidenced by the association with psychological well-being of DRD4, MAOA, SLC6A3, 5-HTT genes alleles, determined by the length of VNTR in their regulatory regions. Evidence of retroelements role in well-being regulation is that retroelements are sources of protein-coding genes and microRNAs involved in brain functioning. The Arc gene, derived from retroelements, is characterized by transport into neuronal dendrites with translation regulation. We analyzed the MDTE DB database on transposon-derived microRNAs and scientific literature. According to the results, 12 miRNAs, derived from transposons, are associated with major depressive disorder. The data obtained indicate the influence of transposons on psychological well-being, which is assessed by the absence of depression.
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Currently, data are accumulating on the antioxidant properties of bilirubin and its protective role in various diseases. This review considers the dose-dependent effect of bilirubin on its cytoprotective and antioxidant properties, the relationship between the level of bilirubin and the pathophysiological manifestations of bronchial asthma, in the pathogenesis of which chronic inflammation induced by oxidative stress plays a significant role. The article also focuses on the potential therapeutic use of bilirubin in the treatment of bronchial asthma.
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