Hungarian Immunology

[Waiting for DROP]


OCTOBER 20, 2007

Hungarian Immunology - 2007;6(05)



Further articles in this publication

Hungarian Immunology

[Scientific program]

Hungarian Immunology

[The role of endothelial cells]


[The role of endothelial cells is much beyond the well known barrier function between blood and tissues. Several different stimuli converge in the endothelial cells, which in turn regulate a number of vital processes in the organisms. Among these processes one of the most important is the immune response. Endothelial cells modulate the homing of leukocytes by the production of adhesion molecules and cytokines depending on activation state, anatomic location and vessel type. Endothelial cells express MHC and costimulatory molecules, which enables them to present antigens to T cells. Antigen presentation may lead to activation or tolerance of T cells depending on the phenotype of endothelial cells. They also express complement regulatory molecules and produce several complement cascade proteins. Endothelial cells take part in the catabolism of immunoglobulins as well as in the removal of circulating immune complexes. Finally, endothelial cells regulate inflammation at different levels by several mechanisms, which may substantially determinate the progression of the immune response.]

Hungarian Immunology

[Examination of leukocyte-endothel interactions in inflammatory animal models]

GONDA Andrea, MIKECZ Katalin, HUNYADI János

[Leukocyte influx into tissues is one of the hallmarks of physiological reactions to inflammatory stimuli, which is followed by a multistep process, resulting in leukocyte extravasation from the postcapillary venules. The different kinds of adhesion molecules, that play role in the rolling and firm adhesion of the leukocytes, have been investigated very intensively. By the help of animal models of inflammation, numerous individuals, being in the same stage of the disease, can be examined. The requirement for the adhesion molecules for inflammatory responses could be investigated with antibodies or, nowadays more often, gene knock out (KO) or transgenic mice. Beside evaluating the morphological and cytokine profile differences, using intravital microscopy is of great importance in the inflammatory experiments, while it allows observing interactions of virtually any blood cell types with the endothelial wall in vivo. The results are sometimes conflicting, indicating that the process of leukocyte-endothel interactions depends on different kind of other factors than the adhesion molecules, and still not fully understood.]

Hungarian Immunology

[Altered rate and absolute count of Th1/Th2 and Tc1/Tc2 lymphocytes in whole blood of patients with psoriasis]


[BACKGROUND - Psoriasis is a chronic inflammatory skin disorder characterised by an altered rate of interferon (IFN)-γ and interleukin (IL)-4 producing lesional and peripheral blood CD4+ and CD8+ T cells. To further characterise the imbalance of these cells and cytokines the rate and as a novel approach the absolute cell count (ACC) of IFN-γ+, IL-4+ and IL-10+ Thelper and Tcytotoxic cells was determined in the peripheral blood of psoriatic individuals. MATERIALS AND METHODS - Cell-associated cytokine expression was determined using intracellular cytokine staining and flow cytometry, serum cytokine levels were measured by enzyme linked immunosorbent assays (ELISAs) in the samples of 35 psoriatic patients and 15 controls. RESULTS - Significantly elevated rate (p<0.008) and ACC (p<0.009) of CD4+/IFN-γ+ cells was observed in the patients (28.3±8.8% and 237,216±134,154 cells/ml) compared to the healthy controls (21.0+ 6.8% and 135,772±50,212 cells/ml). In contrast the rate and the ACC of CD4+/IL-4+ cells decreased significantly in psoriasis (0.45±0.67% vs. 1.01± 0.48%, p<0.0001; 3,229±3,724 vs. 5,117±4,171 cells/ml, p<0.05). In the case of CD8+ T cells only the rate and the ACC of CD8+/IL-10+ cells increased significantly in patients compared to controls (5.49±5.42% vs. 1.59±0.78%, p<0.003 and 19,799±17,412 vs. 5,564±2,794 cells/ml, p<0.03). Though higher IFN-γ and lower IL-4 and IL-10 serum concentrations were detected in psoriasis these differences between patients and controls were not significant. Comparing the different cytokine parameters the serum cytokine levels showed some correlation only with the ACC and not with the rate of cytokine positive cells. CONCLUSIONS - These results further prove the presence of an altered balance in cytokine regulation towards the Thelper 1 cytokines in psoriasis, besides indicate that application of the ACC of cytokine positive helper and cytotoxic T cells as a novel parameter can help in the characterisation of these changes in different disorders.]

Hungarian Immunology

[Alpha calcidol treatment in patients with psoriatic arthropathy: clinical and immunological effects]

GAÁL János, LAKOS Gabriella, ALEKSZA Magdolna, KISS Judit, HORVÁTH Irén, HORKAY Edit, NAGY Georgina, SZEGEDI Andrea

[OBJECTIVE - Our objective was to describe the functional changes of the immune system also to evaluate the clinical parameters during systemic alphacalcidol (1αOH vitamin D3) treatment in patients with psoriatic arthropathy. PATIENTS AND METHOD - Nineteen patients with peripheral polyarticular form of psoriatic arthropathy were investigated. Ten patients were treated with daily 2×25 mcg alphacalcidol per os for 6 months and the other 9 patients served as controls. Three visits (at start, 3 and 6 months later) were carried out during the study, changes in the laboratory and clinical parameters were examined and analysed statistically in the treated and control groups. RESULTS - In the peripheral blood of the treated group a statistically significant decrease in the percentage of CD3/CD69 positive activated and CD8 positive IFNγ producing T cells was observed and the serum level of IFNγ also showed a significant decrease during the first 3 months. Another three months later no change in the above mentioned variables could be detected. Additionally, there was a significant decrease in the clinical activity of the disease using DAS28 score during the whole 6 months follow up period. In the control group no significant changes were observed. CONCLUSION - Our results show that systemic alphacalcidol treatment has a notable immune modulatory effect on patients with psoriatic arthropathy. This effect is manifested in short-term temporary decrease of type 1 immune responses and continuous decrease in the disease activity.]

All articles in the issue

Related contents

Clinical Neuroscience

Delirium due to the use of topical cyclopentolate hydrochloride


Introduction - Our aim is to present a rare case where a child had delirium manifestation after instillation of cyclopentolate. Case presentation - A 7-year old patient was seen in our outpatient clinic, and cyclopentolate was dropped three times at 10 minutes intervals in both eyes. The patient suddenly developed behavioral disorders along with gait disturbance, and complained of visual hallucinations 20-25 minutes after the last drop. The patient was transferred to intensive care unit and 0.02 mg/kg IV. physostigmine was administered. The patient improved after minutes of onset of physostigmine, and was discharged with total recovery after 30 minutes. Conclusion - Delirium is a rare systemic side effect of cyclopentolate. The specific antidote is physostigmine, which can be used in severely agitated patients who are not responding to other therapies.

Clinical Neuroscience

Acute bilateral drop foot as a complication of prolonged squatting due to haemorrhoid

KOKSAL Ayhan, DOGAN Burcu Vasfiye

Drop foot is defined as difficulty of dorsiflexion of the foot and ankle due to weak anterior tibial, extensor hallucis longus and extensor digitorum longus muscles. Cauda equina syndrome, local peroneal nerve damage due to trauma, nerve entrapment, compartment syndrome and tumors are common etiologies. A 32-year-old male patient was applied with difficulty in dorsiflexion of both of his toes, feet and ankles after he had squatted in toilette for 6-7 hours (because of his haemorrhoid) after intense alcohol intake 2 weeks before. Acute, partial, demyelinating lesion in head of fibula segment of peroneal nerves was diagnosed by electromyography. This case was reported since prolonged squatting is an extremely rare cause of acute bilateral peroneal neuropathy. This type of neuropathy is mostly demyelination and has good prognosis with physical therapy and mechanical devices, but surgical intervention may be required due to axonal damage. People such as workers and farmers working in the squatting position for long hours should be advised to change their position as soon as the compression symptoms (numbness, tingling) appear.

Lege Artis Medicinae

[Illness representation of patiens with migraine and tension headache]

AMANDA Illés, NAGY Beáta Erika

[It’s been proven by many scientific observation that patients describe their diseases both in progression and adaptation in a different manner even though having a similar origin. The reason behind is the various cognitive background. The investigation of this cognitive function may help us understand patients personal reactions better. In 2007 I investigated the effect of three factors (type, understanding and duration of the disease) on illness representation in patients suffering from headache. The patients included were the following three groups: having migraine with aura, migraine without aura and patients with tension headache. I was looking for correlations and differences in disease representations. For this investigation I have used illness representation questionnaires translated and adapted to Hungarian population. The data were obtained in the waiting hall of two headache centres in Debrecen. Although there were no significant correlations in most of the cases, certain tendencies were observed. Understanding of disease representation could be very useful tool in psychological support, psychotherapy for the patients and it could improve their quality of life.]

Clinical Neuroscience

[The future in danger: a survey of the changes in the number of neurologists and a prognosis for 2010 in Hungary]

BERECZKI Dániel, CSIBA László, KOMOLY Sámuel, VÉCSEI László

[Lack of neurologists has become an obvious problem recently in Hungary, not only in small hospitals, but in major health care centers and also in university hospitals. With the current survey we set forth to estimate the number of board certified neurologists, and to evaluate the foreseeable changes in the next decade. In the beginning of 2010 there were 1310 physicians in Hungary with an official license to practice neurology. During 2009 neurological performance at least once during the year was claimed to the National Health Insurance Fund by 948 board certified neurologists. The number of those neurologists who are routinely involved in neurological patient care was estimated to be around 750. The lack of the young generation is characteristic for the age distribution of neurologists. In nine out of the 19 counties of Hungary the number of neurologists below the age of 35 is one or nil. In the ten-year period of 2000-2009 the annual mean number of new board certifications in neurology was 22. This number is much lower than that needed to replace those who get employed abroad and who leave the system for other reasons. The number of neurologists in the age range of 40-60 years will drop to 2/3 of the current number by 2020 even if emigration of neurologists will completely halt. If emigration will continue at the current rate and the number of those in neurological training will not increase considerably, then by 2020 only about 300 neurologists will have to cover neurological services throughout Hungary. As this number is insufficient for the task, and the tendency is clearly foreseeable, the health care government should urgently react to this situation to ensure an acceptable level of neurological services in the near future for the population of Hungary.]

Lege Artis Medicinae



[More and more data are indicating that subclinical thyroid diseases can not be regarded as innocuous states. It seems very likely that slight changes in the serum thyroid hormone levels, still within the normal reference range, are sensed beside the pituitary also by other tissues and organs and their function may become abnormal. Considering these problems, it would be advisable to elucidate the proper time to start treatment, whether it is beneficial or not and to determine what the risks are for the applied therapy. Though the recommended guidelines for the management of subclinical thyroid diseases are becoming more and more evident, many questions remain still unanswered. It is not advisable to start an overzelous therapy, however, a too long waiting time for the installation of treatment could also be harmful. Large prospective and randomized trials are needed to clear these questions. This seems to be an urgent task, since due to their high prevalence, subclinical thyroid dysfunction might be regarded as a public health problem.]