Lege Artis Medicinae

[Student government at the SOTE]

GAÁL Péter1

DECEMBER 25, 1991

Lege Artis Medicinae - 1991;1(18)

[In the autumn of 1989, the students of SOTE UAS elected a Student Self-Government for the first time, so that their interests would be represented by a legitimate body and not by the Hungarian Communist Youth Federation. Even then, the main goal was clear to us: to become, with the help of European thinkers, a university with a European atmosphere and standards, and with the help of European thinkers, we SOTE-S students could become recognised and respected doctors all over the world. ]

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Lege Artis Medicinae

[Metoprolol treatment in dialated cardiomyopathy]

DÉKÁNY Miklós, NYOLCAS Noémi, FIÓK János, VÁNDOR László, SEREG Mátyás, BALOGH Ildikó

[Authors applied metoprolol for treating heart failure in with dilated cardiomyopathy. Patients were given digitalis, diuretics as well as ACE-inhibitor and vasodilator drugs. The grade of heart failure was according to NYHA classification in the mean 2.5 class. For assessing the effect of metoprolol clinical variables and results of non-invasive tests were evaluated and compared in 3 consecutive periods: 1) before starting metoprolol, 2) 2–4 weeks after reaching its definitive dose (short-term effect), 3) 3-6 months later (medium-term effect). Early intolerance appeared in 3 patients; signi ficant progression of heart failure in 2 and hypotension causing complaints in 1. Evaluating the actually treated 17 patients clinical signs of heart failure (NYHA class) decreased, left ventricular ejection fraction improved, though not significantly in case of every considered variables, left atrial filling pressure decreased, exercise capacity did not alter, rate-pressure product decreased at rest and at low level of exercise as well. The authors stress the significance of "up-regulation" of myocardial beta-1 receptors in the reduction of myocardial toxic catecholamin effect and myocardial oxygen demand as well as in the increase of myocardial blood supply. Referring to the data of the respective literature and to their own experiences the authors suggest metoprolol treatment in cases of dilated cardiomyopathy, where previus therapy did not prove to be efficient.]

Lege Artis Medicinae

[Role of oxygen derived free radicals during myocardial reperfusion]

KÓNYA László , FEHÉR János, JUHÁSZ Nagy Sándor

[Oxygen derived free radicals are now considered to be important contributors to tissue (myocardium) injury associated with ischemia and reperfusion. Normaly the tissue concentration of these toxic intermediate products of oxygen is strietly limited, but production of oxygen free radicals overwhelming the capacity of the tissue elimination may cause serious damage. Thus reperfusion has it's own danger with the extension of the injury produced by the ischemia alone. Several experi mental studies have shown that different free radical scavengers can reduce the post-ischemic tissue injury, however, there are contradictory results and unresolved problems. Further investigation is necessary to establish the relevance of oxygen free radical mediated myocardial injury and the effective antioxidant treatment. ]

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[Cure]

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[Belfast Metoprolol Study; Helsinki Heart Study]

Lege Artis Medicinae

[Autoimmunity and the network of the antibody-forming cells: the "immunological homunculus"]

UHER Ferenc

[Frank M. Burnet's clonal selection theory declares the deletion and/or anergy of self-reactive clones to be the fundamental mechanism responsible for self tolerance. There is ample evidence, however, that all healthy individuals have lymphocytes and , natural” antibodies that recognize self structures. In the 1970s, Niels K. Jerne postulated the network theory. It is based on the idea that the idiotype, the region of an immunoglobulin that is unique because it comprises the antigen-binding portion of the molecule, can act as both antigen and antibody within the same individual. Network theory views the immune system as a single, highly interconnected system, through idiotypes, a web of V domains. Antonio Coutinho adressed this problem and divided the repertoire of the B lymphocytes into two parts. He suggested that a set of naturally activated cells and the immunoglobulins they secrete, is reflected in the autonomous immune activities of the self-related network as the central immune system. In contrast, immune responses to external antigens are essentially allonomous clonal activities of another set of resting, rapidly turning over lymphocytes that follow the predictions of the clonal selection theory, making up the peripheral part of the system. Finally, Irun R. Cohen suggested that some, perhaps all, major autoantigens are indeed dominant because each one of them is encoded in the organizational structure of the immune system. This picture was termed the immunological homunculus by its analogy to the picture of the body encoded in the central nervous system. ]

Lege Artis Medicinae

[Modern therapy of intracerebral and subarachnoidal hemorrhages]

LEEL-ŐSSZY Lóránt

[The frequency of the intracerebral hemorrhages among the strokes is most commonly quoted around 10 percent. The rupture of an intracranial aneurysm is often complicated with subarachnoideal hemorrhage as well as with intracerebral hematoma therefore this latter type of intraparenchymal hemorrhage may also be discussed in this topic. The modern imaging procedures (Computed to mography, Nuclear magnetic resonance) are of crucial importance in the urgent and exact diagnosis of intracranial hemorrhages. The first essential step in the diagnosis of stroke is to distinguish the ischemic lesion from the hemorrhage by means of CT. When an intra cerebral hemorrhage threatens life and the patient's condition is relatively good there must be an urgent decision considering the choice between medical therapy or surgical intervention. Although clearcut indications for surgery are now available, the clinical and computed tomographic guidelines play indi vidually an important role in the final decision. The individual judgment is always desirable in every case of intracerebral hemorrhage as well as in the surgical intrvention of intracranial aneurysm during the acute phase (two days).]

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[History of vaccine production in Hungary ]

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[Recurrent inhibition during Jendrassik maneuver]

LUKÁCS Miklós

[Objective – Conflicting theoretical models exist regarding the mechanism related to the ability of the Jendrassik maneuver to reinforce reflex parameters. Our objective was to investigate if vigorous handgrip would induce changes in recurrent inhibition of soleus motoneurons. Method – Soleus H reflex was evoked by stimulating the tibial nerve at rest and during bilateral vigorous handgrip, alternating single (H1) and paired stimulation (H2). At paired stimulation we used interstimulus intervals of 10, 15, 20 and 25 ms and supramaximal test stimulus. H1- and H2-wave amplitudes were expressed as percentage of maximal M-wave amplitude. Conditioned H2 wave maximal (H2max) and minimal (H2) amplitudes evoked at rest and expressed as a percentage of the unconditioned H1max amplitude were compared with the corresponding values obtained during handgrip by means of paired Student test and Bonferroni correction. Subjects – At the study participated 28 healthy volunteers. Results – The H1max/Mmax × 100 values obtained during handgrip (37.5±10.1) were significantly higher than those obtained at rest (27.1±7.4). The H2max/H1max × 100-va­lues obtained at paired stimulation were significantly higher during handgrip than at rest, while no significant diffe­rence was found between the H2/H1max × 100-values obtained during handgrip and at rest respectively. Discussion – The H2max/H1max is determined by both the excitability of the motoneurons and the recurrent inhibition elicited by the conditioning stimulus, while H2/H1max indicates only the level of recurrent inhibition. According to our results the Renshaw cells retain their inhibitory effect on the soleus alpha motoneurons during remote muscle contraction. Conclusion – Soleus H reflex enhancement during Jendrassik maneuver is not due to decrease of recurrent inhibition. ]

Lege Artis Medicinae

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[The comprehensive screening program of Hun­gary (MAESZ) 2010-2020-2030 is a unique initiative in Hungary and worldwide too. This largest humanitarian program provides by the latest technology free scree­ning tests for all residents in Hungary. The program developed by 76 pro­fessional organizations offers 38 scree­ning tests to every participants free of charge, in a special designed screening truck. Screening program performed by MAESZ includes cardiovascular, ophthalmologic, dermatologic, gynecologic, and neurologic investigations, lab tests, audiometry, blood pressure and arterial stiffness measurements, and venous Doppler ultrasound examinations. More­over, screening tests for lactose intolerance, colon malignancy, inflammatory bowel disease, reflux disease, urine incontinency, prostatic cancer and physical activity level were evaluated. Starting 2020, a dental screening station will be added to the mobile unit for early detection of oral cancers. Beyond screening tests, special attention is paid to assess health threatening risk factors, such as smoking, alcohol con­sumption, physical inactivity, un­healthy nutrition, and obesity. The program demonstrates the key elements of first aid from reanimation to bandage of burns in cooperation with professional and civil organisations. Furthermore, during the waiting time, participants get lifestyle recommendations and a health booklet with a bar code enabling the immediate computer analysis of test outcomes. Since the 2018/2019 school year the official prevention program for children entitled “Travel around the Empire of Health” was started. During its 10 years, the MAESZ performed 7 million free of charge screening tests on 1,886 scenes, enrolled 560,000 participants, invested 16,000 hours for prevention, handed out 1,200,000 health booklets and 391,000 prevention info packages to thousands of fami­lies. More than 20,000 health professionals (GPs, nurses, dietetics, health development agents, public health government officials, Accident Prevention Committee of National Police Headquarters, General Directorate of Social Affairs and Child Protection and non-governmental organizations) have been participated. The program designed to improve social health aims to help more and more Hun­garian citizens to be informed about their health status and to reminds them of the importance of prevention. ]

Lege Artis Medicinae

[Commemorating the Lipótmező. Part 2.]

RIHMER Zoltán

[In the previous part of these recollections I summarised my experience of three-and-a-half decades gained in the National Institute of Psychiatry and Neurology as a medical student, later on as a junior physician and finally as a head of department. What follows below is an attempt to define the role Lipótmező played in my life and why it was a fundamentally flawed deci­sion to close down the institute in 2007.]