Lege Artis Medicinae

[They still work with Szentgyörgyi's instruments]

KRASZNAI Éva

DECEMBER 23, 1992

Lege Artis Medicinae - 1992;2(12)

[Veronika Ádám, Professor at the Institute of Biochemistry at Semmelweis University of Medical Sciences, began her report on the situation of the theoretical institutes with a wailing cry at a meeting of the Parliament's Committee on Social, Family and Health Affairs. He desperately complained that specialists from Hungarian universities, including the four medical universities, were emigrating beyond our borders. It is precisely the best ones, who are by far the most satisfied with their employers there, because they have received high-quality training at home. But that standard is no longer sustainable. There is virtually no replacement for teachers: salaries are low, research opportunities are limited. Teachers are trying - not without success - to find work abroad. The situation is no better in terms of teaching resources. ]

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Lege Artis Medicinae

[Cephalosporins in the nineties]

GRABER Hedvig

[The cephalosporin group is the largest and most widely used family of antibiotics in the nineties. According to their antimicrobial activity, the cephalosporin derivatives are classified as three generations; in Hungary seven parenteral and three oral compounds are available, while some newer ones are under registration. The chemistry and antimicrobial spectra of the cephalosporins are presented, as well as the main problems of bacterial resistance. Pharmacokinetics, adverse effects, and clinical indications of the individual compounds are discussed. The importance of critical use is emphasized.]

Lege Artis Medicinae

[Regionally Organized Cardiac Key European Trial]

MATOS Lajos

[Nisoldipine reduced ST-segment depression and the frequency of silent ischaemic periods compared with placebo, but this did not reach the level of statistical significance. The active agent did not affect the diurnal distribution of ischaemic signs and did not improve exercise capacity.]

Lege Artis Medicinae

[New trends in the nonpharmacological therapy of atrial fibrillation]

KEMPLER Pál, LITTMANN László

[Atrial fibrillation is the most common of all sustained cardiac arrhythmias, and it is often resistant to medical therapy. This paper summarizes ourcurrent understanding of the pathophysiology of atrial fibrillation, surveys the factors which have led to the development of nonpharmacologic therapy, and describes the advantages and disadvantages of these procedures. Potential new research directions are presented. ]

Lege Artis Medicinae

[International Nifedipine Trial on Antiatherosclerotic Therapy]

MATOS Lajos

[ The coronarograms showed that neither the number nor the extent of atherosclerotic lesions observed in the first study changed appreciably over three years in either the nifedipine or placebo group. However, the incidence of new lesions was significantly lower in the active drug group than in the placebo group (0.59 vs 0.82/patient; -28%). Side effects were significantly more frequent in patients taking nifedipine (55/173) than in the placebo group (16/175; p<0.03).]

Lege Artis Medicinae

[Acute porphyrias]

TASNÁDI Gyöngyi, NAGY László

[Acute porphyrias - acute intermittent porphyria, variegate porphyria, hereditary coproporphyria and plumboporphyria – are due to lowered activity of the enzymes of the heme biosynthesis. All of them are inherited as autosomal dominants. From the pathobiochemical and clinical points of view there are 4 phases of the disease: genetic phase, compensated latent and decompensated latent phases and the generally life-threatening acute at tack. The clinical symptoms are caused by peripheral and autonomic neuropathy, which are primarily induced by various precipitating factors: in part by endogenous hormones but mainly by drugs, alcohol and severe infections. The diagnosis is based on measurement of the activities of the enzymes and porphyrins and their precursors in urine and feces. The therapy includes the use of glucose infusions administered in large doses and haematin. However the most effective mode of treatment is to prevent the acute syndrome. It is crucial to recognize the disease in the earliest (genetic) phase because in this way it is possible to avoid inducing factors. 91 patients are under permanent control and care by the authors, but there are many more patients in Hungary according to European estimates. Discovery of these patients would serve prevention.]

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Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

Clinical Neuroscience

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Cognitive dysfunction (CD) is a common non-motor symptom of Parkinson’s disease (PD). Alexithy­mia is a still poorly understood neuropsychiatric feature of PD. Cognitive impairment (especially visuospatial dysfunction and executive dysfunction) and alexithymia share com­mon pathology of neuroanatomical structures. We hypo­thesized that there must be a correlation between CD and alexithymia levels considering this relationship of neuroanatomy. Objective – The aim of this study was to evaluate the association between alexithymia and neurocognitive function in patients with PD. Thirty-five patients with PD were included in this study. The Toronto Alexithymia Scale–20 (TAS-20), Geriatric Depression Inventory (GDI) and a detailed neuropsychological evaluation were performed. Higher TAS-20 scores were negatively correlated with Wechsler Adult Intelligence Scale (WAIS) similarities test score (r =-0.71, p value 0.02), clock drawing test (CDT) scores (r=-0.72, p=0.02) and verbal fluency (VF) (r=-0.77, p<0.01). Difficulty identifying feelings subscale score was negatively correlated with CDT scores (r=-0.74, p=0.02), VF scores (r=-0.66, p=0.04), visual memory immediate recall (r=-0.74, p=0.01). VF scores were also correlated with difficulty describing feelings (DDF) scores (r=-0.66, p=0.04). There was a reverse relationship bet­ween WAIS similarities and DDF scores (r=-0.70, p=0.02), and externally oriented-thinking (r=-0.77,p<0.01). Executive function Z score was correlated with the mean TAS-20 score (r=-62, p=0.03) and DDF subscale score (r=-0.70, p=0.01) Alexithymia was found to be associated with poorer performance on visuospatial and executive function test results. We also found that alexithymia was significantly correlated with depressive symptoms. Presence of alexithymia should therefore warn the clinicians for co-existing CD.

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Evaluation of the effectiveness of transforaminal epidural steroid injection in far lateral lumbar disc herniations

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Lege Artis Medicinae

[History of vaccine production in Hungary ]

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[This study presents the complete history of the Hungarian vaccine production, partly in association with the process of fighting vaccine-preventable infectious diseases, and underlines the fact that every government actively contributed to the age-adjusted mandatory vaccination schedule of the past 140 years. It demonstrates the various achievements from the smallpox lymph production through the launch of diphtheria serum production at Phylaxia and the establishment of the National Public Health Institute (OKI) with its vaccine production and the later institutional transformation of OKI into Humán as economic corporation to its closure. Among all OKI’s vaccine production activities, this study focuses on the production of influenza vaccines, due to its international importance in the 1960s and 1970s. The vaccine production against diphtheria tetanus and pertussis stands out from Humán’s activities, and the tetanus component of this vaccine is still used in the products of a multinational vaccine manufacturer. ]

Lege Artis Medicinae

[Risk of nonsteroidal antiinflammatory drugs. Focus on aceclofenac]

FARSANG Csaba

[Nonsteroidal antiinflammatory drugs (NSAIDs) are among the most frequently used pharmaceuticals. Nevertheless, a number of studies emphasized that NSAIDs were damaging not only the gastrointestinal (GI), but also the cardiovascular (CV) system, could increase the blood pressure, the frequency of coronary events (angina, myocardial infarction) and stroke incidence, as well as they might deterio­rate renal functions. The National Institute for Health and Care Excellence (NICE) did not find evidence that administering NSAIDs could increase the risk of developing COVID-19 or worsened the condition of COVID-19 patients. However, unwanted effects of specific drugs differ substantially in their occurrence and seriousness as well. It seemed to be for a long time that the NSAIDs provoked higher GI-risk was closely related to the COX1/COX2 selectivity, like the cardiovascular (CV) risk to the COX2/COX1 selectivity, however, the recent data did not prove it clearly. Based on the available literature while pondering the gastrointestinal and cardiovascular adverse events, among all NSAIDs the aceclofenac profile seemed to be the most favourable.]