Publications by authors named "Chryssoula Nikolaou"

Aim: To study if the angiotensin receptor blocker olmesartan reduces levels of plasminogen activator inhibitor 1 (PAI1), a risk factor for oral cancer, in a mouse model and therefore whether it could be used in the treatment of this malignancy.

Materials And Methods: Twelve transgenic PAI1 mice aged 16-20 weeks were divided in two groups each containing six animals. One group was given olmesartan every day for 30 days in drinking water in an amount corresponding to their weight, 0.

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Lactobacilli are human commensals found in the gastrointestinal and genitourinary tract. Although generally conceived as non-pathogenic microorganisms, the existence of several reports implicating them in certain severe pathological entities renders this species as opportunistic pathogens. The case of a 58-year-old woman with mixed infection is described.

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Background: The course of Interleukin-7 (IL-7), Interleukin-10 (IL-10) and Granulocyte Colony Stimulating Factor (G-CSF) was investigated in alcohol-dependent individuals without liver disease in order to ascertain the use of these cytokines as markers for the follow-up testing and the outcome of the detoxification treatment.

Methods: Forty-eight alcohol-dependent individuals were admitted for alcohol detoxification. Blood was obtained upon admission, two weeks later and after the completion of the detoxification period (4-5 weeks).

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The presence of cerebrospinal fluid oligoclonal bands (CSF-OCB) in Caucasian patients with multiple sclerosis (MS) is supportive of diagnosis, though the relation with patients' clinical and specifically cognitive features has never been established or thoroughly examined. Thus, we investigated the clinical and for the first time the cognitive profile of MS patients in relation to CSF-OCB. We studied 108 patients with and without OCB and recorded demographic characteristics and detailed clinical data.

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Aim: The pathogenic role of Herpes Simplex Virus (HSV) 1 and 2 in Multiple Sclerosis (MS) still remains obscure. The aim of our study was the assessment of HSV1 and 2 DNA prevalence in the cerebrospinal fluid (CSF) of MS patients compared to patients with other neurological disorders (OND).

Materials And Methods: HSV1 and HSV2 DNA detection in the CSF of patients was performed by real time polymerase chain reaction (PCR).

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Background: The alterations of total nitric oxide (NO) (through total nitrite/nitrate) and inducible nitric oxide synthase (iNOS) concentrations were determined in a population of alcohol-dependent individuals without liver disease upon admission for detoxification, two weeks later and after completion of detoxification (4-6 weeks in total).

Materials And Methods: Thirty-eight men and nine women were included in the study. Endogenous nitrite and total nitrite/nitrate concentrations were measured colorimetrically and iNOS concentration was measured by enzyme-linked immunosorbent assay (ELISA).

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Background/aim: Indoleamine 2, 3-dioxygenase (IDO) induction has been suggested as a mechanism by which immune activation affects tryptophan metabolism and serotonin synthesis in major depressive disorder (MDD). We investigated IDO and changes in inflammatory mediators in patients with MDD undergoing effective treatment.

Patients And Methods: Forty female patients with MDD and 40 controls were recruited.

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Introduction: Little is known about the role of cytokines in chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Interleukin (IL)-12 and IL-15 are the major growth and differentiation factors for Th-1 cells and IL-17 is a marker of Th-17 cell expansion and activation, a high proinflammatory new subset of T cells that induce severe autoimmunity.

Patients And Methods: We measured by enzyme-like immunosorbent assay serum and cerebrospinal fluid (CSF) levels of IL-15, IL-12, and IL-17 in 24 patients with CIDP and 12 patients with other non-inflammatory neurological disorders and serum levels in 16 healthy subjects.

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Background: There is evidence that immunological factors may be involved in pathogenic mechanisms of amyotrophic lateral sclerosis (ALS). Interleukin (IL)-15 and IL-12 are proinflammatory cytokines produced by activated blood and glial cells. They promote T cell differentiation and proliferation.

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Introduction: Interleukin-15 (IL-15) is a proinflammatory cytokine. RANTES is a member of the beta chemokines subfamily with strong chemoattractant activity for T lymphocytes and monocytes.

Materials And Methods: We measured by enzyme-like immunosorbent assay (ELISA) serum levels of IL-15 and RANTES in 24 patients with MS in relapse, 27 patients with stable MS and 21 healthy subjects.

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Unlabelled: There is evidence to support that oxidative stress is increased in Parkinson's disease (PD) and contributes to degeneration of dopaminergic neurons. Uric acid (UA), a natural antioxidant in blood and brain tissue, scavenging superoxide, peroxynitrite and hydroxyl radical, was found reduced in the serum of PD patients. In addition low plasma uric acid (UA) levels have been associated with an increased risk of PD.

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Background: Immune activation has been shown to be involved in the pathophysiology of anxiety states and major depression and pregnancy is associated with a characteristic immune activation to sustain the fetus. Despite the possibility of a relation between immune parameters and postpartum mood disturbance, few studies have explored this association. Further, no study to-date has examined CSF.

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Objectives: Interleukin-12 (IL-12), a proinflammatory cytokine produced by Th1 cells, and interleukin-10 (IL-10), a product of Th2 cells, are involved in the pathogenetic mechanisms of multiple sclerosis (MS). CCL2 chemokine expression is induced by Th2 cytokines and is decreased in MS relapse. The mechanisms responsible for the beneficial effects of IVmethylprednisolone in attacks are not clearly established and the duration of the effect of this treatment remains controversial.

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Immunological disturbances have been implicated in the pathogenesis of amyotrophic lateral sclerosis (ALS). Chemokines are involved in the recruitment of immune cells. Regulated upon activation, normal T-cell expressed and secreted (RANTES) is a C-C beta-chemokine with strong chemo-attractant activity for T-lymphocytes and monocytes.

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The objective of this study was to assess the role of interleukin-15 (IL-15) as a potential marker of immune reactions in patients with Alzheimer's disease and vascular dementia. The authors measured by immunoassay serum IL-15 levels in 20 patients with Alzheimer's disease and 15 patients with vascular dementia and compared them with serum IL-15 levels in 15 healthy subjects. The authors also studied the effect of treatment with acetylcholinesterase inhibitors (AChEI) on serum IL-15 levels.

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Unlabelled: Interleukin-12 is a heterodimeric cytokine produced by activated blood monocytes, macrophages and glial cells. It enhances differentiation and proliferation of T cells and increases production of proinflammatory cytokines, such as Interferon-gamma and Tumor Necrosis Factor-alpha. There is little information about the involvement of IL-12 in the pathophysiology of Alzheimer's disease (AD) and other tauopathies.

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We agree with the comments of Mr. Maggio and colleagues. The exact role of serum IL-6R and the relation between this and the IL-6/sIL-6R complex in inflammatory disorders has not been completely clarified.

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Glutamate is present in the plasma under tightly regulated concentrations. However, under conditions of immune deficiency, such as AIDS and malignancy, its plasma levels are highly elevated. In vitro, glutamate interacts with T lymphocytes, affecting mitogen-induced calcium responses, whereas at high doses, it impairs T lymphocyte proliferation, a process strongly dependent on the activity of voltage-gated potassium channels.

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Background: Our knowledge concerning immune functioning in bipolar affective disorder (BAD) is limited, while lithium's immunomodulatory effects seem multiple and conflicting. Our aim was to evaluate cytokine production and lithium's effect on it in BAD patients, using ELISPOT technique as a sensitive tool.

Methods: Cytokine (IL-2, IL-6, IL-10 and IFN-gamma) production from isolated peripheral blood lymphocytes (PBLs) was evaluated (ELISPOT technique) in 40 euthymic BAD patients under chronic lithium treatment, in 20 healthy volunteers, and in 10 never medicated BAD patients before and after the introduction of lithium therapy.

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IL-6 acts on target cells via the ligand-binding protein interleukin-6 receptor (IL-6R) and the affinity-converting and signal-transducing glycoprotein 130 (gp130). Soluble interleukin-6 receptor (sIL-6R) has an agonistic role because the soluble complex (IL-6/sIL-6R) can activate cells that do not express IL-6R and an antagonistic role as it enhances the inhibitory activity of sgp130. Soluble forms of both receptors, sIL-6R and sgp130, regulate the action of IL-6.

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Article Synopsis
  • Antiepileptic drugs can impact cholesterol and triglyceride levels in people with epilepsy.
  • A study measured these serum levels in 103 epileptic patients on monotherapy and compared them to 103 matched controls, revealing varied effects from different drugs.
  • It was found that patients on carbamazepine had higher cholesterol levels, while those on valproate had lower levels, suggesting the need for monitoring and potential dietary changes for patients on carbamazepine and phenytoin.
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Objective: This study examines the alpha-subunit of the olfactory G-protein (G(olf)) as a possible candidate gene for bipolar disorder. The alpha-subunit of the G(olf) gene maps to a region on chromosome 18p that has been implicated in several linkage studies as a potential site of a bipolar disorder susceptibility loci.

Methods: We investigated whether two polymorphisms in the alpha-subunit of the G(olf) gene (A-->G in intron 3 and T-->G in intron 10) are associated with bipolar disorder in a sample of 149 bipolar patients under lithium treatment compared with 139 healthy controls using haplotype analysis.

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