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Clinical Neuroscience

JANUARY 30, 2021

Matrix metalloproteinases and their tissue inhibitors in relapsing remitting multiple sclerosis: Possible markers and treatment agents

SANLI Arzu, OZTURK Musa, SOYSAL Aysun, DOVENTAS Yasemin, BASOGLU Fulya, GOZUBATIK-CELIK R. Gokcen, BAYBAS Sevim

Matrix metalloproteinases (MMPs), which are synthesized by many cell groups and responsible for the destruction of matrix proteins, and endogen tissue inhibitors of MMPs (TIMPs) have a role in the pathogenesis of Multiple Sclerosis (MS) by affecting the blood-brain barrier. We aimed to investigate the role of MMPs and TIMPs in the immunopathogenesis and in the course of multiple sclerosis (MS). We enrolled 25 relapsing remitting MS patients, who had a definite MS diagnosis according to McDonald criteria and 25 healthy subjects similar for age and gender as control group. MMP-9- and TIMP-1 levels were measured twice in patient group (one time during an attack and one in remission) and once in healthy subjects. MMP-9- and TIMP-levels of patients during attack and remission period and MMP-9/TIMP-1 ratio were found significantly higher than in the control subjects. In patient group MMP-9 and TIMP-1 levels and MMP-9/TIMP-1 ratio during attacks were not significantly different than during remission period. However, when subdivided according to their number of attacks, patients with 2 attacks had significantly higher levels during attack period comparing to remission period (p<0.05); in case of patients with more than 2 attacks did not have a statistically significant difference in attack and remission periods. Matrix metalloproteinases are important actors in MS immunopathogenesis, particularly in the early period and inhibitor agents for these enzymes can be used as a treatment option.

Hypertension and nephrology

NOVEMBER 04, 2020

[The role of stress management in the care of hypertension and the treatment of cardiovascular disease]

SOMOGYI Éva, KISS Zoltán, STAUDER Adrienne

[The aim of this paper is to give an overview of the relationship between stress and hypertension and cardiovascular diseases, furthermore to introduce an evidence based stress management intervention available in Hungary. The correlation between cardiovascular disease and psychosocial factors (including concomitant mental disorders as well as personality traits or the effect of social environment) has been established in numerous studies aimed at investigating pathogenesis or various clinical endpoints. The 2016 Guidelines of the European Society of Cardiology include the assessment and the management of psychosocial problems with behavioral medicine interventions as a I.A level recommendation. The implementation of these guidelines in everyday clinical practice is crucial to decrease cardiovascular risk. This involves the training of health care professionals, the facilitation of multidisciplinary collaboration and the integration of behavioral intervention into everyday care. The Williams Life Skills (WLS) program is an evidence based behavioral medicine intervention aiming to improve stress management and communication skills which implemented internationally and also available all over Hungary. It involves the learning of simple coping strategies that facilitate the successful management of every day psychosocial stress situations and the self-conscious reduction of bodily and psychological tensions. In cardiovascular disease, this improves quality of life and survival. The WLS program is especially recommended for healthcare workers to decrease the negative health consequences of their high stress load and to prevent burnout. Stress may affect both doctors and patients during their interactions. Bálint groups have a positive impact on the physician-patient collaboration and help to reduce burnout by improving the understanding of the diseases from a more complex approach.]

Hypertension and nephrology

SEPTEMBER 30, 2020

[Hyperkalaemia IV.]

DEÁK György, PATÓ Éva, KÉKES Ede

[The six-part summary presents the epidemiology, diagnosis, pathogenesis, and treatment of hyperkalaemia.]

Lege Artis Medicinae

MARCH 10, 2020

[The role of dyslipidaemia in the patomechanism of obstructive sleep apnoea ]

MÉSZÁROS Martina, BIKOV András

[Obstructive sleep apnoea (OSA) is the most recent sleep-breathing disorder, which is characterised by repetitive collapses of the upper airways. Chronic intermittent hy­poxia, sleep fragmentation and systemic inflammation play pre-eminent role in the pathogenesis of OSA and its comorbidities, such as dyslipidaemia. The triple impaired lipid metabolism results in OSA by dysregulated lipid synthesis of the liver, insuffi­cient lipoprotein clearance and increased lypolysis. Several previous studies examined the association between dyslipidaemia and OSA with various outcomes. The aim of this review is to present the pathomechanism of dyslipidemia in the OSA. ]

Lege Artis Medicinae

DECEMBER 10, 2019

[Praeeclampsia - 2019]

TAMÁS Péter, KOPPÁN Miklós

[Preeclampsia remains one of the most serious gestational diseases. Accumulating data support the opinion that the pathogenesis of preeclampsia (gestational hypertension + organ dysfunction) is not homogenous. The early-onset (onset of clinical phase before the 34th gestational week) type is a placental disease in which hypertension and organ dysfunctions are due to vasoconstriction and microthrombosis. The late-onset form is a maternal disease in which water retention - in connection with obesity - beyond the given vascular capacity may be an important progenitor of the clinical signs. These considerations should also influence the strategy of the treatment. ]

Clinical Neuroscience

SEPTEMBER 30, 2019

[The role of epigenetic regulations in early childhood diseases]

TORY Vera

[With the acceptance of “The developmental origins of health and disease” concept in the 1990s, it became clear that epigenetic inheritance, which do not involve changes in the DNA sequence has important role in the pathogenesis of diseases. Epigenetic regulation serves the adaptation to the changing environment and maintains the reproductive fitness even on the drawback of increased risk of diseases in later life. The role of epigenetic mechanisms in chronic non-communicable diseases has been well established. Recent studies have revealed that epigenetic changes have also causal role in certain pediatric diseases. The review evaluates the recent epigenetic findings in the pathomechanism of common pediatric diseases. The wide range and long-lasting duration of epigenetic regulations give importance to the subject. Methods are already available to evaluate a part of the epigenetic changes in the clinical practice, presently aiming primarily the estimation of the disease risk or definition of diagnosis. Furthermore, there are already available limited means to influence the epigenetic regulation. ]

Lege Artis Medicinae

DECEMBER 10, 2018

[IgG4-related gastropathy mimicking malignancy]

NAGY Pál, KASZÁS Ilona, PÁK Gábor, TIBA Imre, FELFÖLDI Éva, HAMVAS József, BAGDI Enikő, KRENÁCS László

[The Immunoglobulin G4-related disease (IgG4-RD) along with its synonyms is recently a popular topic in the medical literature. This illness can affect almost every organ in the body therefore it is frequently discussed in any type of interdisciplinary forums. We presented an instructive case of IgG4-RD with gastric involvement in 2016. Hereby we share our pertinent experiences. We are not dealing with the IgG4-RD in general including its terminology problems, epidemiology, pathogenesis, detailed clinical/pathological appearances, diagnostic criteria and treatment. A 63-year-old male presented with symp­toms of pylorus stenosis. The endoscopic findings and CT images were interpreted as those of a malignant tumour in the antrum of the stomach. So a subtotal resection was performed although the biopsy showed reactive proliferation of plasma cells without evidence of malignancy. Pathological examination of the surgical specimen confirmed an IgG4- associated sclerosing inflammation. The patient had an uneventful recovery. Our case is an example of rare, isolated formof IgG4-RD. ]

Lege Artis Medicinae

OCTOBER 20, 2018

[Juvenile idiopathic arthritis: from diagnosis to treatment]

MOSDÓSI Bernadett

[Juvenile idiopathic arthritis is a heterogeneous group of diseases that is one of the most common chronic diseases of childhood. It begins before 16 years of age, the etiology is unknown, it is persisting for at least 6 weeks and other pathologic conditions could be excluded. Juvenile idiopathic arthritis includes several diseases categories, each of them have distinct methods of presentation, clinical symptoms, pathogenesis and treatment options. Recent advances in the understanding of the immunological pathogenesis of the diseases have led to dramatic improvements in treatment. Although the management is using a multidisciplinary approach, the disease often persist into adulthood and can cause significant long-term morbidity and physical disability. Our article discusses the classification, clinical manifestations, differential diagnosis, treatment and complications of juvenile idiopathic arthritis. ]

Lege Artis Medicinae

OCTOBER 20, 2018

[Gene modified T cells against cancer]

SZÖŐR Árpád

[Chimeric antigen receptor modified (CAR) T cells are hailed as a revolutionary breakthrough in the field of oncology. CAR T cells were first applied, with outstanding success, in the treatment of various leukaemias, yielding unprecedented antitumor activity and long periods of disease free survival. Following the success of CAR T cell therapy in leukaemias, solid tumors should now be targeted. These are more complex targets, therefore CAR T cell therapy needs to be further optimized for this purpose. Also, some unfortunate side effects, including the potentially deadly global inflammation called cytokine storm have to be minimized and possibly even eradicated. The next decade will be an exciting time to define whether this therapy which is yet exclusively used for cancer patients is also successful in the treatment of other diseases. In a recent study, T cells reengineered with CAR derived chimeric autoantibody receptors (CAAR) efficiently prevented disease progression in pre-clinical animal models simulating the serious autoimmune disorder, pemphigus vulgaris. Therapy was based on CAAR constructs which have the unique ability to selectively recognize and eliminate the B-cell clones secreting autoantibodies against a self-protein, thus playing a key role in disease pathogenesis and progression. In this review, we would like to give an overview about the history of the CAR T-cell concept, summarize briefly the currently running clinical trials, and discuss the challenges and future prospects of CAR T-cell therapy.]

Lege Artis Medicinae

SEPTEMBER 20, 2018

[Differential diagnosis and treatment of hyponatraemia]

NÉMETH Zsófia, DEÁK György

[Hyponatraemia (serum sodium concentration < 136 mmol/l) is the most frequent electrolyte abnormality that inceases the risk of both in-hospital, and outpatient mortality. Antidiuretic hormone action or low glomerular fitration rate or low excretable osmoles or their combination are involved in its pathogenesis. Differential diagnosis is based on medical and medication histories, serum- and urine osmolality and urine sodium concentration. Measurement of fractional excretions of urea and uric acid help identifying low effective circulting volume, renal hypoperfusion. Symptomatic hyponatraemia or an acute decrease of serum sodium concentration exceeding 10 mmol/l should be treated with 3% NaCl to avoid impending threat to life. The principles of the treatment of chronic hyponatraemia are restriction of water intake and elimination of etiologic factor(s) (eg. medications - most often thiazides). In case of contracted axtracellular volume, isotonic saline should be given. In case of euvolaemia, restriciton of water intake is fundamental. In case of expanded extracellular volume, (heart failure, liver cirrhosis, nephrosis), water and NaCl intake should be restricted along with aldosteron antagonist and loop diuretic therapy. In chronic hyponatraemia, the rise of serum sodium concentration should not exceed 10 mmol/l during the first 24 hours and 8 mmol/l/day thereafter. ]