scholarly journals Role of Oxidative Stress and the Identification of Biomarkers Associated With Thyroid Dysfunction in Schizophrenics

2021 ◽  
Vol 12 ◽  
Author(s):  
Mahmood Rasool ◽  
Arif Malik ◽  
Shamaila Saleem ◽  
Muhammad Abdul Basit Ashraf ◽  
Altaf Qadir Khan ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Liver Function ◽  
Vitamin B6 ◽  
Thyroid Dysfunction ◽  
Total Bilirubin ◽  
Thyroid Stimulating Hormone ◽  
Dietary Antioxidants ◽  
Iodide Uptake ◽  
Control Subjects ◽  
Stress Markers

Background: Schizophrenia is associated with a deficiency of dietary antioxidants like vitamin B6, B9, and B12 resulting in defective methylation leading to hyperhomocysteinemia. Hyperhomocysteinemia causes mitochondrial DNA damage, oxidative stress, vascular damage, and lipid peroxidation. Oxidative stress and increase in reactive oxygen species result in 8-oxodG production which induces apoptosis of both astrocytes and thyrocytes thus predisposing them to thyroid dysfunction and neurodegeneration. Furthermore, the presence of excessive free radicals increases thyroid thermogenesis causing hyperthyroidism or its excess may cause hypothyroidism by inhibiting iodide uptake. In the present study, we evaluated the various biomarkers associated with thyroid dysfunction in schizophrenics.Materials and Methods: 288 patients suffering from schizophrenia and 100 control subjects were screened for liver function tests (LFTs) such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and total bilirubin (TB). Also, the stress markers, namely malondialdehyde (MDA), homocysteine, cysteine, methionine, the thyroid profile including triiodothyronine (T3), thyroxine (T4), thyroid-stimulating hormone (TSH), thyroxine peroxide antibody (TPO-Ab); TSH receptor-Ab (TSHr-Ab), dietary antioxidants, lipids, cytokines, aminoacids and hormones, vitamins and trace elements, and other biochemical parameters.Results: The LFTs showed elevated levels of ALT (45.57 ± 4.87 Vs. 26.41 ± 3.76 U/L), AST (40.55 ± 1.34 Vs. 21.92 ± 3.65 U/L), ALP (121.54 ± 4.87 Vs. 83.76 ± 5.87 U/L), and total bilirubin (2.63 ± 0.987 Vs. 1.10 ± 0.056 mg/dl), in schizophrenics than controls. Increased levels of MDA (3.71 ± 0.967 Vs. 1.68 ± 0.099) and homocysteine (17.56 ± 2.612 Vs. 6.96 ± 1.987 μmol/L were observed in schizophrenics compared to the controls, indicating increased stress. Levels of cysteine and methionine were decreased in schizophrenics than the controls (1.08 ± 0.089 Vs. 4.87 ± .924 μmol/L and 17.87 ± 1.23 Vs. 99.20 ± 5.36 μmol/L). The levels of TPO-Ab (IU/ml), Tg-Ab (pmol/L), and TSHr-Ab (IU/L) were observed to be higher in the patients’ group as compared to control subjects (9.84 ± 2.56 Vs. 5.81 ± 1.98, 55.50 ± 2.98 Vs. 32.95 ± 2.87 and 2.95 ± 0.0045 Vs. 1.44 ± 0.0023 respectively). Levels of Vitamin B6, B9, and B12 were also significantly decreased in the patients compared to the healthy controls.Conclusion: The schizophrenics, demonstrated altered liver function, increased stress markers, and decreased dietary antioxidants. Reduced primary and secondary antioxidant levels, may result in hyperhomocysteinemia and cause further DNA and mitochondrial damage. Therefore, homocysteine and/or prolactin levels may serve as candidate prognostic markers for schizophrenia. Also, both neurological symptoms and the susceptibility to thyroid disorders may be prevented in the initial stages of this debilitating disorder by appropriate dietary supplementation of antioxidants which can rectify a reduction in primary and secondary antioxidants, and disturbed prolactin-serotonin-dopamine interactions in schizophrenics.

scholarly journals A Whole-Food-Based Health Product (A-F Betafood®) Improves Gallbladder Function in Humans at Risk of Gallbladder Insufficiency: A Randomized, Placebo-Controlled Clinical Trial

Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 540
Author(s):  
Malkanthi Evans ◽  
Najla Guthrie ◽  
Bassem F. El-Khodor ◽  
Brandon Metzger ◽  
Saradhadevi Varadharaj
Keyword(s):  
Oxidative Stress ◽  
Liver Function ◽  
Wall Thickness ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density ◽  
Health Product ◽  
Oxidative Stress Markers ◽  
Gallbladder Function ◽  
Stress Markers

A-F Betafood® is a whole food-based health product. The product contains phytonutrients and bioactives with antioxidant properties that may support gallbladder and liver function. Herein, we investigated the efficacy of A-F Betafood® on gallbladder and liver function. In this randomized, placebo-controlled, parallel study fifty overweight but otherwise healthy adults received A-F Betafood® or placebo for 12 weeks. Gallbladder function as assessed by gallbladder volume, ejection fraction (GBEF), ejection rate, wall thickness and liver function determined via aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyltransferase, and high-sensitivity c-reactive protein analysis at baseline and week 12 were the primary outcomes. Total cholesterol, low-density lipoprotein-cholesterol, high-density lipoprotein-cholesterol, triglycerides, and oxidative stress markers including oxidized low-density lipoprotein, tumor necrosis factor-α, adiponectin and malonyldialdehyde (MDA) were assessed as secondary outcomes. A-F Betafood®-supplementation significantly reduced gallbladder wall thickness (p = 0.049) by 9% compared to placebo from baseline to week 12. The A-F Betafood® group alone had significant improvements in gallbladder volume (32%; p = 0.044) and GBEF (19%; p = 0.047) at week 12. There were no changes in liver function, oxidative stress markers or blood lipid concentrations, though MDA concentrations decreased in both groups. Our findings demonstrate A-F Betafood®-supplementation significantly improves measures of gallbladder function and support healthy gallbladder function in the individuals with gall bladder condition.

scholarly journals Active recovery training does not affect the antioxidant response to soccer games in elite female players

2010 ◽  
Vol 104 (10) ◽  
pp. 1492-1499 ◽  
Author(s):  
Helena Andersson ◽  
Anette Karlsen ◽  
Rune Blomhoff ◽  
Truls Raastad ◽  
Fawzi Kadi
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Response ◽  
Oxidative Stress Marker ◽  
Oxidative Stress Markers ◽  
Active Recovery ◽  
Dietary Antioxidants ◽  
Antioxidant Defence ◽  
Stress Markers ◽  
Dietary Antioxidant ◽  
Endogenous Antioxidant

Changes in plasma endogenous and dietary antioxidants and oxidative stress markers were studied following two 90 min elite female soccer games separated by 72 h of either active or passive recovery. The active recovery group (n 8) trained for 1 h at 22 and 46 h after the first game (low-intensity cycling and resistance training), while the passive group rested (n 8). Blood samples were taken before the games; immediately after the games; 21, 45 and 69 h after the first game; and immediately after the second game. The oxidative stress markers and antioxidants were not affected by active recovery. The oxidative stress marker GSSG increased by the same extent after both the games, while the lipid peroxidation marker diacron-reactive oxygen metabolite remained unchanged. The endogenous antioxidants total glutathione and uric acid and ferric reducing/antioxidant power increased immediately after both the games with the same amplitude, while increases in cysteine, cysteine–glycine and total thiols reached significant levels only after the second game. The changes in dietary antioxidants after the first game were either rapid and persistent (tocopherols and ascorbic acid (AA) increased; polyphenols decreased) or delayed (carotenoids). This resulted in high pre-second game levels of tocopherols, AA and carotenoids. Polyphenols returned to baseline at 69 h, and were not affected by the second game. In conclusion, the soccer-associated dietary antioxidant defence, but not the endogenous antioxidant defence, is persistent. Similar acute oxidative stress and endogenous antioxidant responses and dissimilar dietary antioxidant reactions occur during two repeated female soccer games. Finally, the complex antioxidant response to soccer is not affected by active recovery training.

scholarly journals The role of oxidative stress in the pathogenesis of Graves’ orbitopathy

2021 ◽  
Vol 75 ◽  
pp. 448-455
Author(s):  
Magdalena Londzin-Olesik ◽  
Beata Kos-Kudła ◽  
Aleksandra Nowak ◽  
Mariusz Nowak
Keyword(s):  
Oxidative Stress ◽  
T Cell Activation ◽  
Cell Activation ◽  
Serum Levels ◽  
Thyroid Stimulating Hormone ◽  
Peroxidation Of Lipids ◽  
Hormone Production ◽  
Stress Markers ◽  
Orbital Tissue ◽  
Autoimmune Condition

Graves’ disease (GD) is a chronic autoimmune condition in which the anti-thyroid stimulating hormone receptor antibodies (TRAb) activate the thyrotropin receptor (TSHR) located on thyrocytes, leading to excessive thyroid hormone production. TSHR is also expressed in extrathyroidal tissues, in particular, within the orbit. The serum levels of TRAb correlate with the severity and activity of thyroid orbitopathy (TO). TO is the most common extrathyroidal manifestation of GD. It is an autoimmune inflammation of orbital tissues, that is, extraocular muscles, orbital adipose tissue or a lacrimal gland. Increased orbital fibroblast and adipocyte proliferation, overproduction of glycosaminoglycans, as well as extraocular muscle oedema, result in increased orbital tissue volume and trigger the onset of TO symptoms. The pathophysiology of TO is complex and has not been fully unexplained to date. Orbital fibroblasts show expression of the TSHR, which is the main target of autoimmunity. It has been hypothesised that T-cell activation induced by orbital receptor stimulation by the target antibody results in orbital tissue infiltration, triggering a cascade of events which leads to the production of cytokines, growth factors and reactive oxygen species (ROS). ROS cause damage to many components of the cell: the cell membrane through the peroxidation of lipids and proteins leading to a loss of their function and enzymatic activity. Oxidative stress leads to the activation of the antioxidant system, which operates through two mechanisms: enzymatic and non-enzymatic. Assessment of the concentration of oxidative stress markers and the concentration or activity of anti-oxidative system parameters enables the evaluation of oxidative stress severity, which in the future may be utilized to assess treatment efficacy and prognosis in patients with active OT.

scholarly journals Antifibrotic Activity of Phaleria macrocarpa Extract in Rat Liver-fibrosis Model: Focus on Oxidative Stress Markers, TGF-β1 and MMP-13

2020 ◽  
Vol 8 (A) ◽  
pp. 555-562
Author(s):  
Bantari W. K. Wardhani ◽  
Nanik Sundari ◽  
Raymond R. Tjandrawinata ◽  
Ahmad Aulia Jusuf ◽  
Vivian Soetikno ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Carbon Tetrachloride ◽  
Liver Fibrosis ◽  
Liver Function ◽  
Cell Activation ◽  
Stellate Cell ◽  
Male Rats ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Phaleria Macrocarpa

AIM: This study was aimed to determine the antifibrotic activity of Phaleria macrocarpa (PM) extract in liver fibrosis (LF) and its possible mechanism in the rat model. METHODS: Sprague Dawley male rats were injected with 2 mL/kg BW of carbon tetrachloride intraperitoneally twice a week for 2 weeks, followed by 1 mL/kg BW for 6 weeks. Afterward, the treatments began from the 3rd week: Silymarin 100 mg/kg BW/day, standardized PM extract (Proliverenol) 75 or 150 mg/kg BW/day orally. Rats were sacrificed in the 8th week. Blood and liver were collected to analyze liver function, liver damage and fibrosis marker, oxidative stress markers, pro-fibrogenic cytokine, and antifibrotic marker. RESULTS: Our study showed that the treatment of silymarin and PM resulted in the normalized activity of liver function, followed by the amelioration of oxidative stress, demonstrated by the decreased malondialdehyde levels and an increased ratio of glutathione and glutathione disulfide. All markers examined showed that PM extract has antioxidant activity due to decreased hepatic stellate cell activation. We also found a decrease in tumor growth factors-β1 and protein expressions of matrix metalloproteinases-13 in all treatment groups compared to the carbon tetrachloride group. There were tendencies of the decreased fibrotic area following improvements of biochemical parameters. CONCLUSION: PM extracts ameliorate carbon tetrachloride-induced LF. The proposed mechanism is by overcoming oxidative stress and regulating pro-fibrogenic cytokine and antifibrotic markers.

scholarly journals Determination of Malondialdehyde and Superoxide Dismutase in Pulmonary Tuberculosis Subjects

2020 ◽  
Vol 3 (1) ◽  
pp. 7-10
Author(s):  
Y Muhammad ◽  
◽  
S Iliya ◽  
AY Sa’idu ◽  
A Anka ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Superoxide Dismutase ◽  
Pulmonary Tuberculosis ◽  
Teaching Hospital ◽  
Serum Levels ◽  
Mean Values ◽  
Tuberculosis Patients ◽  
Control Subjects ◽  
Stress Markers ◽  
And Control

Pulmonary tuberculosis (PTB) is a dangerous bacterial infection that attacks the lungs. It has long been documented that there is an increase circulating levels of free radicals and oxidative stress markers in TB subjects. Malnutrition and deficient antioxidant capabilities further complicate the patient’s situation. The aim of this study is to determine the serum levels of malondialdehyde (MDA) and superoxide dismutase (SOD) in pulmonary tuberculosis patients and normal volunteers at Rasheed Shekoni Teaching Hospital Dutse, Jigawa State, Nigeria. The present study consists of one hundred and thirty-four (134) subjects, Ninety (90) among which are diagnosed TB patients and forty-four (44) apparently healthy controls attending Rasheed Shekoni Teaching Hospital Dutse. Venous samples were collected from ninety consecutive, consenting PTB on drugs and those that have not started medications. MDA levels were analysed using the method of Nadigar et al (1986). The mean values of MDA in the 24 tuberculosis infected males who are yet to commence drug was 4.0±0.32, 2.8±0.53 in those that are on drugs and 2.0±0.23 in the male control subjects. It was 4.1±0.35, 2.9±0.29 and 1.9±0.32 in female that are TB infected and yet to commence drugs, those on drugs and the control subjects respectively. The total mean MDA value for those on tuberculosis drugs was 4.0±0.33, 2.8±0.46 for those that are yet to commence the treatment and 2.0±0.28 for the control subjects, the serum levels of SOD was found significantly lower (p<0.005) in PTB subjects on treatment compared to those without treatment and control subjects. Conclusively, the findings of the current study showed that pulmonary tuberculosis patients are predisposed to oxidative stress leading to an increased MDA and consequent decreased SOD levels as compared to the control subjects.

The role of oxidative stress in the pathogenesis of Graves’ orbitopathy

2021 ◽  
Vol 75 ◽  
pp. 1-10
Author(s):  
Magdalena Londzin-Olesik ◽  
Beata Kos-Kudła ◽  
Aleksandra Nowak ◽  
Mariusz Nowak
Keyword(s):  
Oxidative Stress ◽  
T Cell Activation ◽  
Cell Activation ◽  
Serum Levels ◽  
Thyroid Stimulating Hormone ◽  
Peroxidation Of Lipids ◽  
Hormone Production ◽  
Stress Markers ◽  
Orbital Tissue ◽  
Autoimmune Condition

Graves' disease (GD) is a chronic autoimmune condition, in which the anti-thyroid stimulating hormone receptor antibodies (TRAb) activate the thyrotropin receptor (TSHR) located on thyrocytes, leading to excessive thyroid hormone production. TSHR is also expressed in extrathyroidal tissues, in particular, within the orbit. The serum levels of TRAb corelate with severity and activity of thyroid orbitopathy (TO). TO is the most common extrathyroidal manifestation of GD. It is an autoimmune inflammation of orbital tissues, that is, extraocular muscles, orbital adipose tissue or a lacrimal gland. Increased orbital fibroblast and adipocyte proliferation, overproduction of glycosaminoglycans, as well as extraocular muscle oedema result in an increased orbital tissue volume and trigger the onset of TO symptoms. The pathophysiology of TO is complex and has not been fully unexplained to date. Orbital fibroblasts show expression of the TSHR, which is the main target of autoimmunity. It has been hypothesised that T-cell activation induced by orbital receptor stimulation by the target antibody results in orbital tissue infiltration, triggering a cascade of events which leads to the production of cytokines, growth factors and reactive oxygen species (ROS). ROS cause damage to many components of the cell: the cell membrane through the peroxidation of lipids and proteins leading to a loss of their function and enzymatic activity. Oxidative stress leads to activation of the antioxidant system which operates through two mechanisms: enzymatic and non-enzymatic. Assessment of the concentration of oxidative stress markers and the concentration or activity of antioxidative system parameters enables evaluation of oxidative stress severity, which in the future may be utilized for assessment of treatment efficacy and prognosis in patients with active OT.

scholarly journals Derangement in Enzymatic and Non-Enzymatic Markers of Liver Function in Human Immunodeficiency Virus (HIV) Infected Patients in Makurdi, North Central Nigeria

2021 ◽  
Vol 4 ◽  
pp. 1-7
Author(s):  
DO Ochalefu ◽  
GI Adoga ◽  
EI Alonyenu ◽  
SA Agada
Keyword(s):  
Human Immunodeficiency Virus ◽  
Alkaline Phosphatase ◽  
Liver Function ◽  
Total Protein ◽  
Total Bilirubin ◽  
Antiretroviral Drugs ◽  
Hiv Patients ◽  
North Central ◽  
Control Subjects ◽  
Immunodeficiency Virus

Liver disease has emerged as a critical issue in the management of human immunodeficiency virus (HIV) victims. This study was carried out to investigate the derangement in indices of liver function in HIV-infected patients in Makurdi, North Central Nigeria. One hundred and fifty males and females adults within the age range of 21- 50 years were enrolled for this study. One hundred of these participants were confirmed HIV positive, out of which fifty were on various antiretroviral drugs including the nucleoside / nucleotide reverse transcriptase inhibitors and the non-nucleoside transcriptase inhibitors classes of antiretroviral drugs. The remaining fifty persons who were HIV- negative served as the control group. Blood samples from the studied persons were analysed for alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total protein, albumin, total bilirubin and conjugated bilirubin using automated clinical chemistry analyser, Hitachi 902 (Roche Diagnostic GMBH, Germany). The HIV- patients with or without antiretroviral drugs had their serum levels of alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase significantly raised (p< 0.05) compared with the control subjects. A significant rise (p< 0.05) was observed in serum level of total protein in the HIV patients who were yet to commence antiretroviral drugs when compared to the control subjects. However, the albumin levels of the HIV patients on the antiretroviral drugs and those who were yet to commence the antiretroviral drugs decreased significantly (p< 0.05) when compared with that of the control. The total bilirubin level of the HIV patients on antiretroviral drugs showed significant increase (p< 0.05) compared with the control subjects and the HIV patients who were not on antiretroviral drugs. This study reveals that both HIV infection itself and the antiretroviral drugs cause hepatic malfunction

scholarly journals HEPATOPROTECTIVE ACTIVITY OF ASPARGUS RACEMOSUS ROOT EXTRACT ON LIPOPOLYSACCHARIDE INDUCED OXIDATIVE STRESS IN RATS

2019 ◽  
Author(s):  
Md. Parwez Ahmad ◽  
Tarannum Perween ◽  
Smita Singh ◽  
Ragni Sinha ◽  
Arshad Hussain ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Liver Function ◽  
Stress Responses ◽  
Liver Toxicity ◽  
Hepatoprotective Activity ◽  
Multiple Organ ◽  
Root Extract ◽  
Asparagus Racemosus ◽  
Stress Markers

Lipopolysaccharide (endotoxin) produces an inflammatory condition leading to multiple organ failure. LPS most potent bacterial products is used for induction of host oxidative stress responses and liver injury. Present study was undertaken to investigate the effect of Asparagus racemosus Willd. root extract in lipopolysaccharide (LPS) induced oxidative stress in rats by measuring oxidative stress markers, nitric oxide, liver function test and cytokines. The obtained data showed that LPS administration significantly reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT), total cholesterol (TC) and albumin (ALB). There was significant increase in malondialdehyde (MDA), cytokines activity, serum aspartate transaminase(AST), alanine transaminase(ALT), alkaline phosphate (ALP), total bilirubin (TB) and nitric oxide(NO). The methanolic extract of Asparagus racemosus (MEAR) administration significantly (P<0.05) reduced LPS-induced oxidative stress by normalizing liver GSH, SOD, CAT, MDA, NO, cytokines and liver function markers. MEAR significantly increased ALB and TC level. Our results suggest that MEAR protects the liver against liver toxicity induced by LPS.

CLINICAL EVALUATION OF THE THYROID STIMULATING HORMONE ACTIVITY IN EXOPHTHALMOS

1961 ◽  
Vol 38 (4) ◽  
pp. 577-584 ◽  
Author(s):  
Sven Erik Björkman ◽  
Torsten Denneberg ◽  
Inge Hedenskog
Keyword(s):  
Clinical Evaluation ◽  
Thyroid Stimulating Hormone ◽  
Significant Rise ◽  
Hormone Activity ◽  
Control Subjects ◽  
Long Duration ◽  
Stimulating Factor ◽  
Stimulating Hormone

ABSTRACT A method for demonstrating the presence of a thyroid stimulating factor in the blood of patients with progressive exophthalmos after thyroidectomy or after treatment with radioiodine is described. The method consists of transfusing freshly drawn blood from the patients to euthyroid recipients and subsequently following the PBI level of the recipients at regular intervals. Six exophthalmic patients tested in this manner were found to have such a factor in their circulating blood. After transfusion of their blood a significant rise in the PBI level of the recipients could be demonstrated. Two other patients, one with exophthalmos of long duration did not show this response nor did it occur after transfusion of blood from two control subjects. In one case the action of this factor was compared with that of animal thyrotrophin and found to be of the same magnitude.

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