Lege Artis Medicinae

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SEPTEMBER 01, 2000

Lege Artis Medicinae - 2000;10(09)

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Lege Artis Medicinae

[Bacteriophage therapy and prophylaxis; Renewal of earlier expectations]

MILCH Hedda

[Bacteriophages were discovered 84 years ago by the observation of a lysis of a bacterial culture. The aim of the earliest attempts was the therapeutic employment of bacteriophages. The experiments controlled unsatisfactorily, could not fulfill expecations and successful antibiotic testing resulted the rejection of bacteriophage therapy. Bacteriophages gained importance in biology in the 1950s, as model viruses in biological and genetic research. The decrease in the success of antibiotic therapy caused to renew efforts in experimental phage therapy. The author reviews the early studies carried out mainly on animals as well as human experiments with bacteriophages purified by genetic methods. According to the results, bacteriophage therapy may be effective under certain circumstances for the infections not treatable by antibiotics, and in the case of antiobiotic-susceptible bacteria it can supplement therapy.]

Lege Artis Medicinae

[Newly discovered molecules the chemokines]

KŐHIDAI László, DÉRFALVY Beáta

[Chemokine research in the last decade has provided new results in several areas of biomedicine. Investigation and characterization of chemokines resulted in better understanding and modeling complex pathophysiological and immunological processes. Chemokine research opened up entirely new aspects on the defense against pathogenic agents as well as on the processes of inflammation and angiogenesis. With the amount of clinical data growing steadily, it is clear that chemokines could play very important role not only in solving the problems of the oretical and experimental biology but also with their application in clinical diagnostics and therapy. ]

Lege Artis Medicinae

[Heparin in Acute Embolic Stroke Trial]

Lege Artis Medicinae

[Effect of calcium channel blocking drugs on the periodontal status of hospitalised patients]

KEGLEVICH Tibor, ZSIDRÓ Emese, BENEDEK Erika, BARNA István, SZEGEDI Zsolt, SCHWAB E. Richárd, GERA István

[Ca2+-channel blockers play crucial role in the chronic treatment of hypertension and cardiac arrhythmia. One of the side effects of the chronic nifedipine treatment is gingival enlargement. The pathomechanism of this side effect is not fully understood. The main objective of the present study was to evaluate the potential role of different factors in the development and severity of gingival hyperplasia. The incidence and severity of gingival enlargement were examined around the six surfaces of all fully erupted teeth in 243 hospitalized patients with the modified Angelopoulus-Goaz Gingival Hyperplasia Index. 172 patients in the study group were on Ca2+ channel blockers for at least three months prior to the examination while 71 inpatients served as controls. Gingival hyperplasia occurred in 87% of the test group and in 53% of the control group. Severe gingival enlargement occurred in 35% in the test group and only in 2% of the control group. The age and gender of the patient, the daily dose of the medication, the duration of the administration of the drug showed no correlation with the extent and severity of gingival hyperplasia. Only oral hygiene showed statistically significant correlation with the severity of gingival enlargement. The only clinical parameter influencing the extent and severity of gingival enlargement associated with Ca2+-channel blocker drugs was the quality of oral hygiene. ]

Lege Artis Medicinae

[The treatment of life-threathening ventricular tachyarrhythmias in coronary artery disease - Antiarrhythmic drug or implantable cardioverter-defibrillator?]

BORBOLA József

[Sudden cardiac death due to sustained ventricular tachyarrhythmias accounts for approximately 50% of all cardiovascular deaths. From the major therapeutic options currently available, antiarrhythmic drug therapy and implantation of automatic car dioverter-defibrillators could be applied to the great majority of patients. Both early observations on automatic implantable cardioverter-defibrillator devices and more recent prospective, randomized, multicenter trials with long-term outcome data uniformly document sudden cardiac death recurrence rates of 1% to 2% annually, compared with recurrences rates of 15% to 25% without the device. There is now compelling evidence from studies suggesing that these devices are superior to antiarrhythmic drugs (Class I and III), both in terms of effectivity and life-saving effects. The implantation of the automatic cardioverter-defibrillator device is currently the first choice therapy for cardiac arrest survivors based on the AHA/ACC guideline (1998), and has to be considered in each case. In the future, the common, hybride treatment with antiarrhythmic device and drugs is expected. ]

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Lege Artis Medicinae

[Vaccines against COVID-19 pandemic]

FALUS András, SZEKANECZ Zoltán

[The rapidly spreading SARS-CoV2 respiratory virus has evoked an epidemic with serious aftermath around the world. In addition to the health effects, the global economic damage is actually unpredictable. At the same time, the pandemic has launched a series of unprecedented collaborative scientific research, including the development of vaccines. This study summarizes up-to-date information on vaccines, immune memory, and some emerging clinical effects.]

Lege Artis Medicinae

[A short chronicle of three decades ]

KAPRONCZAY Katalin

[Hungarian professional periodicals started quite late in European context. Their publish­ing, editing and editorial philosophy were equally influenced by specific historical and political situations. Certain breaking points of history resulted in termina­tion of professional journals (War of In­de­pendence 1848-1849, First and Se­cond World Wars), however there were pe­riods, which instigated the progress of sciences and founding of new scientific journals. Both trends were apparent in years after the fall of former Hungarian regime in 1990. The structure of book and journal publishing has changed substantially, some publishers fell “victim” others started successfully as well. The latters include the then-established publishing house Literatura Medica and its own scientific journal, Lege Artis Me­di­cinae (according to its subtitle: New Hun­garian Medical Herald) issued first in 1990. Its appearance enhanced significantly the medical press market. Its scientific publications compete with articles of the well-established domestic medical journals however its philosophy set brand-new trends on the market. Concerning the medical community, it takes on its problems and provides a forum for them. These problems are emerging questions in health care, economy and prevention, in close interrelation with system of public health institutions, infrastructure and situation of those providing individual health services. In all of them, Lege Artis Medicinae follows consequently the ideas of traditional social medicine.]

Lege Artis Medicinae

[Focus on Lege Artis Medicinae (LAM)]

VASAS Lívia, GEGES József

[Three decades ago, LAM was launched with the goal of providing scientific information about medicine and its frontiers. From the very beginning, LAM has also concerned a special subject area while connecting medicine with the world of art. In the palette of medical articles, it remained a special feature to this day. The analysis of the history of LAM to date was performed using internationally accepted publication guidelines and scientific databases as a pledge of objectivity. We examined the practice of LAM if it meets the main criteria, the professional expectations of our days, when publishing contents of the traditional printed edition and its electronic version. We explored the visibility of articles in the largest bibliographic and scientific metric databases, and reviewed the LAM's place among the Hun­ga­rian professional journals. Our results show that in recent years LAM has gained international reputation des­pite publishing in Hungarian spoken by a few people. This is due to articles with foreign co-authors as well as references to LAM in articles written exclusively by foreign researchers. The journal is of course full readable in the Hungarian bibliographic databases, and its popularity is among the leading ones. The great virtue of the journal is the wide spectrum of the authors' affiliation, with which they cover almost completely the Hungarian health care institutional sys­tem. The special feature of its columns is enhanced by the publication of writings on art, which may increase Hungarian and foreign interest like that of medical articles.]

Hypertension and nephrology

[Association between cyclothymic affective temperament and hypertension]

NEMCSIK János, BATTA Dóra, KŐRÖSI Beáta, RIHMER Zoltán

[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

[Tracing trace elements in mental functions]

JANKA Zoltán

[Trace elements are found in the living organism in small (trace) amounts and are mainly essential for living functions. Essential trace elements are in humans the chromium (Cr), cobalt (Co), copper (Cu), fluorine (F), iodine (I), iron (Fe), manganese (Mn), molybdenum (Mo), selenium (Se), zinc (Zn), and questionably the boron (B) and vanadium (V). According to the biopsychosocial concept, mental functions have biological underpinnings, therefore the impairment of certain neurochemical processes due to shortage of trace elements may have mental consequences. Scientific investigations indicate the putative role of trace element deficiency in psychiatric disorders such in depression (Zn, Cr, Se, Fe, Co, I), premenstrual dysphoria (Cr), schizophrenia (Zn, Se), cognitive deterioration/de­mentia (B, Zn, Fe, Mn, Co, V), mental retardation (I, Mo, Cu), binge-eating (Cr), autism (Zn, Mn, Cu, Co) and attention deficit hyperactivity disorder (Fe). At the same time, the excess quantity (chronic exposure, genetic error) of certain trace elements (Cu, Mn, Co, Cr, Fe, V) can also lead to mental disturbances (depression, anxiety, psychosis, cognitive dysfunction, insomnia). Lithium (Li), being efficacious in the treatment of bipolar mood disorder, is not declared officially as a trace element. Due to nutrition (drinking water, food) the serum Li level is about a thousand times less than that used in therapy. However, Li level in the red cells is lower as the membrane sodium-Li countertransport results in a Li efflux. Nevertheless, the possibility that Li is a trace element has emerged as studies indicate its potential efficacy in such a low concentration, since certain geographic regions show an inverse correlation between the Li level of drinking water and the suicide rate in that area. ]