Hungarian Immunology

[About the genetics of autoimmune diseases]


JANUARY 30, 2006

Hungarian Immunology - 2006;5(01)



Further articles in this publication

Hungarian Immunology

[Congress of the American College of Rheumatology, 2005]

SZŰCS Gabriella, SZÁNTÓ Sándor

Hungarian Immunology

[Antiphospholipid syndrome - focused on the childhood form]


[Antiphospholipid syndrome is an autoimmune disorder characterized by recurrent thromboembolic events with concurrent presence of antiphospholipid antibodies in the sera. The morbidity and mortality of the syndrome is defined by the clinical manifestations: deep vein thrombosis, cerebrovascular events, myocardial infarct, pulmonary embolism, recurrent pregnancy losses and prematurity. The authors reviewed the pathogenesis, the clinical course and the treatment of the antiphospholipid syndrome focused on the childhood form.]

Hungarian Immunology

[Mutations of La gene: the proper reaction of the immune system]


[Numerous hypotheses have emerged to solve the problem and the pathomechanism of autoimmunity so far. Different factors are suspected, from viruses to neuroendocrine elements, to be a pathogen in the etiology of autoimmune diseases. Most of the theories are based on the assumption that something happens to the immune system and it leads to an autoimmune reaction against the proper self. This paper indicates that, at least in certain cases, the immune system reacts properly against the altered cells; therefore the cause of the autoimmunity lies in the other improper functioning of the body. Experimental data show that La autoantigen plays a role not only as a diagnostic marker but it may participate in the pathomechanism of certain autoimmune diseases as well. Mutations in the exon 7 of La gene have such consequences that could lead to the formation of autoimmune reactions detected.]

Hungarian Immunology

[Regional cues and phenotypic responses during the ontogeny and postnatal development of splenic vasculatur]


[Among structured peripheral lymphoid tissues in man and rodents, the spleen demonstrates the most extensive flexibility in functional activities, which is coupled with considerable tissue architecture adjustments during ontogeny and immune reactions. The sequential conversion of a primary lymphohemopoietic tissue into a major peripheral lymphoid organ (while participating in the post-myeloid period of primary B-lymphopoiesis and retaining the potential for myelopoiesis) is accompanied with the ordered segregation involving various non-hemopoietic components of architecture, including the endothelia of blood vessels. In this report we will survey the functional and structural aspects of heterogeneous endothelial cells lining the various splenic vascular beds, comprising the complex circulatory network of the spleen. These features will be correlated with the characteristics of those regulatory mechanisms that have recently been demonstrated to be responsible for the establishment and maintenance of the endothelial divergence during splenic vascular development, including crucial transcription factors, morphogenic regulatory ligands and receptors of the tumor necrosis factor/lymphotoxin (TNF/LT) family and others. The influence of these regulatory elements in mice appears to be highly restricted in terms of regional involvement of the vasculature, with cellular alterations of the marginal sinus representing the most frequently affected region. This complexity highlights the importance of this tissue region in both the formation of splenic vasculature and a possible source for white pulp stromal elements as well as its function as a major gateway for lymphocyte traffic.]

Hungarian Immunology

[Primer and transitory defects of interferonactivated pathways]

ERDŐS Melinda, MARÓDI László

All articles in the issue

Related contents

Clinical Neuroscience

Neuroscience highlights: Main cell types underlying memory and spatial navigation

KRABOTH Zoltán, KÁLMÁN Bernadette

Interest in the hippocampal formation and its role in navigation and memory arose in the second part of the 20th century, at least in part due to the curious case of Henry G. Molaison, who underwent brain surgery for intractable epilepsy. The temporal association observed between the removal of his entorhinal cortex along with a significant part of hippocampus and the developing severe memory deficit inspired scientists to focus on these regions. The subsequent discovery of the so-called place cells in the hippocampus launched the description of many other functional cell types and neuronal networks throughout the Papez-circuit that has a key role in memory processes and spatial information coding (speed, head direction, border, grid, object-vector etc). Each of these cell types has its own unique characteristics, and together they form the so-called “Brain GPS”. The aim of this short survey is to highlight for practicing neurologists the types of cells and neuronal networks that represent the anatomical substrates and physiological correlates of pathological entities affecting the limbic system, especially in the temporal lobe. For that purpose, we survey early discoveries along with the most relevant neuroscience observations from the recent literature. By this brief survey, we highlight main cell types in the hippocampal formation, and describe their roles in spatial navigation and memory processes. In recent decades, an array of new and functionally unique neuron types has been recognized in the hippocampal formation, but likely more remain to be discovered. For a better understanding of the heterogeneous presentations of neurological disorders affecting this anatomical region, insights into the constantly evolving neuroscience behind may be helpful. The public health consequences of diseases that affect memory and spatial navigation are high, and grow as the population ages, prompting scientist to focus on further exploring this brain region.

Clinical Neuroscience

Isolated hypoglossal nerve palsy due to a jugular foramen schwannoma


Introduction – Although the involvement of the hypoglossal nerve together with other cranial nerves is common in several pathological conditions of the brain, particularly the brainstem, isolated hypoglossal nerve palsy is a rare condition and a diagnostic challenge. Case presentation – The presented patient arrived to the hospital with a history of slurred speech and an uncomfortable sensation on his tongue. Neurological examination showed left-sided hemiatrophy of the tongue with fasciculations and deviation towards the left side during protrusion. Based on the clinical and MRI findings, a diagnosis of hypoglossal nerve schwannoma was made. Discussion – Hypoglossal nerve palsy may arise from multiple causes such as trauma, infections, neoplasms, and endocrine, autoimmune and vascular pathologies. In our case, the isolated involvement of the hypoglossal nerve was at the skull base segment, where the damage to the hypoglossal nerve may occur mostly due to metastasis, nasopharyngeal carcinomas, nerve sheath tumors and glomus tumors. Conclusion – Because of the complexity of the region’s anatomy, the patient diagnosed with hypoglossal nerve schwannoma was referred for gamma knife radiosurgery.

Hypertension and nephrology

[Association between cyclothymic affective temperament and hypertension]


[Affective temperaments (cyclothymic, hypertymic, depressive, anxious, irritable) are stable parts of personality and after adolescent only their minor changes are detectable. Their connections with psychopathology is well-described; depressive temperament plays role in major depression, cyclothymic temperament in bipolar II disorder, while hyperthymic temperament in bipolar I disorder. Moreover, scientific data of the last decade suggest, that affective temperaments are also associated with somatic diseases. Cyclothymic temperament is supposed to have the closest connection with hypertension. The prevalence of hypertension is higher parallel with the presence of dominant cyclothymic affective temperament and in this condition the frequency of cardiovascular complications in hypertensive patients was also described to be higher. In chronic hypertensive patients cyclothymic temperament score is positively associated with systolic blood pressure and in women with the earlier development of hypertension. The background of these associations is probably based on the more prevalent presence of common risk factors (smoking, obesity, alcoholism) with more pronounced cyclothymic temperament. The scientific importance of the research of the associations of personality traits including affective temperaments with somatic disorders can help in the identification of higher risk patient subgroups.]

Clinical Neuroscience

[Clinical neurophysiological methods in diagnosis and treatment of cerebrovascular diseases]

NAGY Ildikó, FABÓ Dániel

[Neurophysiological methods are gaining ground in the diagnosis and therapy of cerebrovascular disease. While the role of the EEG (electroencephalography) in the diagnosis of post-stroke epilepsy is constant, quantitative EEG para-meters, as new indicators of early efficiency after thrombolysis or in prognosis of patient’s condition have proved their effectiveness in several clinical studies. In intensive care units, continuous EEG monitoring of critically ill patients became part of neurointenzive care protocols. SSEP (somatosesnsory evoked potencial) and EEG performed during carotid endarterectomy, are early indicative intraoperativ neuromonitoring methods of poor outcome. Neurorehabilitation is a newly discovered area of neurophysiology. Clinical studies have demonstrated the effectiveness of repetitive transcranial magnetic stimulation (rTMS) in the rehabilitation of stroke patients. Brain computer interface mark the onset of modern rehabi-litation, where the function deficit is replaced by robotic tehnology. ]

Clinical Neuroscience

The prevalence of sarcopenia and dynapenia according to stage among Alzheimer-type dementia patients

YAZAR Tamer, YAZAR Olgun Hülya

Aim - In this study, the aim was to identify the prevalence of sarcopenia and dynapenia according to disease stage among Alzheimer-type dementia (AD) patients and collect data to suggest precautions related to reducing the disease load. Method - The study was completed with 127 patients separated into stages according to Clinical Dementia Rating Scale (CDR) criteria and 279 healthy volunteers aged 18-39 years and 70-80 years abiding by the exclusion criteria who agreed to participate in the research. Our prospective and cross-sectional study applied the CDR and mini mental test (MMSE) to patients with disorder in more than one cognitive area and possible AD diagnosis according to NINCDS-ADRDA (National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer’s Disease and Related Disorders Association) diagnostic criteria. The patient and control groups had skeletal muscle mass index (SMMI), muscle strength and physical performance assessed with sarcopenia diagnosis according to European Working Group on Sarcopenia in Older People (EWGSOP) diagnostic criteria. Results - In our study, in parallel with the increase in disease stage of AD patients, the prevalence of sarcopenia (led by severe sarcopenia) and dynapenia was higher compared to a control group of similar age. Conclusion - In chronic, progressive diseases, like AD, identification of changes in parameters, like muscle mass and strength and reductions in physical performance in the early period, is important for identification and to take precautions in the initial stages considering the limitations of the preventive effects of treatment applied after diagnosis of AD.