scholarly journals Environmental Pollution to Blame for Depressive Disorder?

2021 ◽  
Author(s):  
Mariana Segovia-Mendoza ◽  
Margarita Isabel Palacios-Arreola ◽  
Lenin Pavón ◽  
Enrique Becerril ◽  
Karen Elizabeth Nava-Castro ◽  
...  
Keyword(s):  
Depressive Disorder ◽  
Neurological Disorders ◽  
Serum Levels ◽  
Blood Levels ◽  
Public Concern ◽  
Bisphenol S ◽  
Major Depressive ◽  
Clinical Associations ◽  
Butyl Phthalate ◽  
First Time

Public concern has emerged about the effects of endocrine disruptor compounds (EDCs) on neuropsychiatric disorders. Preclinical evidence suggests that exposure to EDCs is associated with the development of the major depressive disorder (MDD) and could result in neural degeneration. The interaction of EDCs with hormonal receptors is the best-described mechanism of their biological activity. However, the dysregulation of the hypothalamic-pituitary-gonadal adrenal axis has been reported and linked to neurological disorders. On the other hand, at a worldwide level and in Mexico, the incidence of MDD has recently been increasing. Of note, in Mexico, there are no clinical associations on blood levels of EDCs and the incidence of the MDD. Methodology: Thus, we quantified for the first time the serum levels of parent compounds of two bisphenols and four phthalates in patients with MDD. Results: The levels of di-ethyl-hexyl-phthalate (DEHP), butyl-benzyl-phthalate (BBP), di-n-butyl phthalate (DBP), and di-ethyl-phthalate (DEP), bisphenol A (BPA), and bisphenol S (BPS) were determined with a gas chromatograph-mass spectrometer. Results/ conclusion: We found significant differences between concentrations of BBP between controls and patients with MDD.

scholarly journals Social and Behavioral Rhythms as a Marker of Well-being Indicator in Old Adults Living at Home

2021 ◽  
Author(s):  
Mauro Giovanni Carta ◽  
Elisa Pintus ◽  
Rosanna Zaccheddu ◽  
Omar Callia ◽  
Giuliana Conti ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Bipolar Disorders ◽  
Well Being ◽  
Blood Levels ◽  
Major Depressive ◽  
Behavioral Rhythms ◽  
Number Of Individuals ◽  
First Time

Social and behavioral rhythms (SBRs) are related to circadian rhythms well known as central points in the pathophysiology of bipolar disorders. The purpose is to verify in elderly people if having functional SBRs correlated with a positive perception of the quality of life (QoL) and health parameters and if there was an association between dysfunctionality of SBRs and Major Depressive Disorder (MDD). Sample: 141 people aged 65 years (58,9%Female). Each subject was submitted to SBRs Scale (in which higher scores show more dysfunctional SRB); SF-12 for QoL; PHQ-9 for depressive symptoms and underwent blood levels essays including cholesterol and triglyceride. The medical documented lifetime diagnosis including Major Depressive Disorder was taken into account. SBRs Scale score correlated inversely with SF-12 score (r=-0.360, p<0.0001) and positively with PHQ9 (r=0.396, p<0.0001). Lifetime MDD medical diagnosis was associated with a higher score at scale on social rhythms (24.811.9 vs 20.18.0, F=15.848, p<0.0001).The study highlighted, for the first time, that SBRs such as sleep, and nutrition have a role in well-being and that dysregulation of SBRs is related to MDD. Further longitudinal studies with a sufficient number of individuals will have to confirm these data and clarify causal links of the association between QoL and SBRs.

scholarly journals Association of serum uric acid levels with suicide risk in female patients with major depressive disorder: a comparative cross-sectional study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jing-Xu Chen ◽  
Jun-Hui Feng ◽  
Li-Gang Zhang ◽  
Yan Liu ◽  
Fu-De Yang ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Uric Acid ◽  
Depressive Disorder ◽  
Suicide Risk ◽  
Serum Levels ◽  
Binary Logistic Regression Analysis ◽  
Healthy Controls ◽  
Major Depressive ◽  
Cross Sectional ◽  
Female Patients

Abstract Background Individuals with major depressive disorder (MDD) have a high suicide risk. Some evidence suggests that uric acid (UA) may be involved in the pathophysiology of MDD. The purpose of this study was to evaluate whether serum UA levels were associated with suicide risk in MDD patients. Methods One hundred four female patients with MDD (52 patients with suicide risk and 52 patients without suicide risk) and 52 healthy individuals were included in this study. The suicide risk was evaluated by Mini International Neuropsychiatric Interview (M.I.N.I.). Fasting serum levels of UA, as well as glucose, lipid and renal function indicators were measured. Results Serum UA levels in MDD patients with suicide risk (245.01 ± 55.44 μmol/L) were significantly lower than those in MDD patients without suicide risk (274.17 ± 72.65 μmol/L) (p = 0.017) and healthy controls (271.42 ± 55.25 μmol/L) (p = 0.030). There was no difference in serum UA levels between the MDD patients without suicide risk and healthy controls (p = 0.821). Binary logistic regression analysis revealed a significant relationship between suicide risk and decreased serum UA levels (OR = 0.989, p = 0.010) in MDD patients. Conclusion Decreased serum UA levels were associated with suicide risk in MDD patients. Purinergic system dysfunction may be involved in the neurobiological basis of suicide risk in these patients.

scholarly journals Association of serum uric acid levels with suicide risk in female patients with major depressive disorder: a comparative cross-sectional study

2020 ◽  
Author(s):  
Jing-Xu Chen ◽  
Jun-Hui Feng ◽  
Li-Gang Zhang ◽  
Yan Liu ◽  
Fu-De Yang ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Uric Acid ◽  
Depressive Disorder ◽  
Suicide Risk ◽  
Serum Levels ◽  
Binary Logistic Regression Analysis ◽  
Healthy Controls ◽  
Major Depressive ◽  
Cross Sectional ◽  
Female Patients

Abstract Background: Individuals with major depressive disorder (MDD) have a high suicide risk. Some evidence suggests that uric acid (UA) may be involved in the pathophysiology of MDD. The purpose of this study was to evaluate whether serum UA levels were associated with suicide risk in MDD patients.Methods: One hundred four female patients with MDD (52 patients with suicide risk and 52 patients without suicide risk) and 52 healthy individuals were included in this study. The suicide risk was evaluated by Mini International Neuropsychiatric Interview (M.I.N.I.). Fasting serum levels of UA, as well as glucose, lipid and renal function indicators were measured.Results: Serum UA levels in MDD patients with suicide risk (245.01 ± 55.44 μmol/L) were significantly lower than those in MDD patients without suicide risk (274.17 ± 72.65 μmol/L) (p = 0.017) and healthy controls (271.42 ± 55.25 μmol/L) (p = 0.030). There was no difference in serum UA levels between the MDD patients without suicide risk and healthy controls (p = 0.821). Binary logistic regression analysis revealed a significant relationship between suicide risk and decreased serum UA levels (OR = 0.989, p = 0.010) in MDD patients.Conclusion: Decreased serum UA levels were associated with suicide risk in MDD patients. Purinergic system dysfunction may be involved in the neurobiological basis of suicide risk in these patients.

scholarly journals Association of serum uric acid levels with suicide risk in female patients with major depressive disorder: a comparative cross-sectional study

2020 ◽  
Author(s):  
Jing-Xu Chen ◽  
Jun-Hui Feng ◽  
Li-Gang Zhang ◽  
Yan Liu ◽  
Fu-De Yang ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Uric Acid ◽  
Depressive Disorder ◽  
Suicide Risk ◽  
Serum Levels ◽  
Binary Logistic Regression Analysis ◽  
Healthy Controls ◽  
Major Depressive ◽  
Cross Sectional ◽  
Female Patients

Abstract Background: Individuals with major depressive disorder (MDD) have a high suicide risk. Some evidence suggests that uric acid (UA) may be involved in the pathophysiology of MDD. The purpose of this study was to evaluate whether serum UA levels were associated with suicide risk in MDD patients.Methods: One hundred four female patients with MDD (52 patients with suicide risk and 52 patients without suicide risk) and 52 healthy individuals were included in this study. The suicide risk was evaluated by Mini International Neuropsychiatric Interview (M.I.N.I.). Fasting serum levels of UA, as well as glucose, lipid and renal function indicators were measured.Results: Serum UA levels in MDD patients with suicide risk (245.01 ± 55.44 μmol/L) were significantly lower than those in MDD patients without suicide risk (274.17 ± 72.65 μmol/L) (p = 0.017) and healthy controls (271.42 ± 55.25 μmol/L) (p = 0.030). There was no difference in serum UA levels between the MDD patients without suicide risk and healthy controls (p = 0.821). Binary logistic regression analysis revealed a significant relationship between suicide risk and decreased serum UA levels (OR = 0.989, p = 0.010) in MDD patients.Conclusion: Decreased serum UA levels were associated with suicide risk in MDD patients. Purinergic system dysfunction may be involved in the neurobiological basis of suicide risk in these patients.

scholarly journals BDNF Genetic Variant and Its Genotypic Fluctuation in Major Depressive Disorder

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Caroline Ferreira Fratelli ◽  
Jhon Willatan Siqueira ◽  
Bruna Rodrigues Gontijo ◽  
Maurício de Lima Santos ◽  
Calliandra Maria de Souza Silva ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Genetic Variant ◽  
Serum Levels ◽  
Unknown Etiology ◽  
Major Depressive ◽  
Eligibility Criteria ◽  
Different Populations ◽  
Protein Serum

Major depressive disorder (MDD) still has an unknown etiology and mechanisms. Many studies have been conducted seeking to associate and understand the connection of different genetic variants to this disease. Researchers have extensively studied the brain-derived neurotrophic factor (BDNF) Val66Met genetic variant in MDD; yet, their findings remain inconsistent. This systematic review sought to verify the GG (Val/Val) genotype frequency fluctuation in different populations with MDD. For this, we searched in different databases and, after applying the eligibility criteria, selected 17 articles. Most studies demonstrate the higher frequency of the ancestral (wild) GG (Val/Val) genotype, although associations of the polymorphic A (Met) allele, changes in BDNF protein serum levels, or both were also found in MDD, whether related to the disease’s development or other factors. Nevertheless, despite these findings, disagreements between several studies are seen. For this reason, further BDNF Val66Met genetic variant studies should not only bridge the gap in the knowledge of this polymorphism’s role in MDD’s different facets but also analyze the genotypic and phenotypic heterogeneity in different populations to help provide a better quality of life for patients.

Increased serum levels of leptin and insulin in both schizophrenia and major depressive disorder: A cross-disorder proteomics analysis

2019 ◽  
Vol 29 (7) ◽  
pp. 835-846 ◽  
Author(s):  
Nuray Çakici ◽  
Mariska Bot ◽  
Femke Lamers ◽  
Thomas Janssen ◽  
Peter J. van der Spek ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Serum Levels ◽  
Major Depressive ◽  
Proteomics Analysis

Serum Interleukin Levels and Insulin Resistance in Major Depressive Disorder

2018 ◽  
Vol 17 (8) ◽  
pp. 618-625 ◽  
Author(s):  
Hussein Kadhem Al-Hakeim ◽  
Sadiq Neama Al-Kufi ◽  
Arafat Hussein Al-Dujaili ◽  
Michael Maes
Keyword(s):  
Insulin Resistance ◽  
Major Depressive Disorder ◽  
Immune System ◽  
Depressive Disorder ◽  
Serum Levels ◽  
Major Depressive ◽  
Glucose Ratio ◽  
Cytokine Levels ◽  
Ifn Γ ◽  
Tgf Β1

Background & Objective: Major depressive disorder (MDD) has been associated with inflammatory processes, including increased cytokine levels, even in individuals who are otherwise physically healthy, while some MDD patients may show insulin resistance (IR). Method: However, correlations between cytokines and IR parameters have not been studied extensively in MDD. In the present study, we measured IL-1β, IL-4, IFN-γ, TGF-β1, insulin and glucose in 63 MDD patients and 27 healthy controls. The associations between cytokine levels and IR were examined. Results: The results revealed a significant increase (p<0.05) in serum levels of IL-1β, IL-4, IFN-γ, TGF-β1, insulin, insulin/glucose ratio, and insulin resistance (HOMA2IR) in MDD patients as compared with controls. There was a significant correlation between HOMA2IR with both IFN-γ (ρ=0.289, p<0.05) and TGF-β1 (ρ=0.364, p<0.05). Conclusion: The present study further confirms that MDD is accompanied by activation of the immune system with significant elevations in the levels of four cytokines. These results indicate stimulation of the immune system and increased IR and modulation of IR by increased cytokine levels in MDD. These findings show that immune activation and associated IR are a new drug target in depression.

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