Lege Artis Medicinae

[Athens: hopes and question marks]

FRENKL Róbert

JULY 20, 2004

Lege Artis Medicinae - 2004;14(07)

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Lege Artis Medicinae

[ENDOTHELIUM PROTECTION IN HYPERTENSIVE PATIENTS]

KÉKES Ede

[The author presents a review about the fundamental principles of normal endothelial function and the main causes for the development of endothelial dysfunction. First of all, endothelial dysfunction results in structural alterations in the wall of the vessel - the „vascular remodelling” in hypertension - and that is the base of hypertensive microangiopathy and target organ damage. In patients with high blood pressure the reactivity of vessels is impaired by the endothelial dysfunction. The members of the main drug groups can influence the vasoactive factors produced in endothelium differently. This different effects of drugs create different clinical benefits. Especially, the ACE inhibitors, the calcium antagonists (mostly the new generation of dihydropyridines) have endothelial protective effects, but some β-blockers, α-1 adrenergic blockers and - in a totally different way of action - the statins are capable of influencing the endothelial dysfunction.]

Lege Artis Medicinae

[THE GENETICS OF DIABETES MELLITUS]

KORÁNYI LÁSZLÓ, PÁNCZÉL Pál

[The number of diabetic patients will be doubled in the coming decades reaching 300 million for year 2025. The number of type 1 diabetics will also be increased but the majority of it will result from the increased number of type 2 diabetics. All types of diabetes are the consequence of a combination of genetic susceptibility and environmental factors, meaning that the prevention of diabetes epidemic cannot be done without the clarification of the genetic background. Significant progression has happened in the discovery of the genetic background of type 1 diabetes mellitus. It was helped by the etiologic classification of the disease: with the new classification the patient groups became more homogeneous. The HLA system is responsible for about 50-70% of the genetic risk while the effects of other genetic factors contribute 1-2% of the genetic susceptibility, respectively. Presently 25 gene regions are known as the different genetic factors of type 1 diabetes mellitus. Regarding the HLA system, the genes and pathomechanism causing the disease are not known. The classification of diabetes mellitus can be based on the HLA type while the predictability of type 1 diabetes mellitus is helped by the HLA type and the INS-VNTR. Much less is known about the genetic background of the polygenic type 2 diabetes mellitus. Its manifestation is now happening at younger age before. The best-fit genetic model consists of only a few genes with moderate effect superimposed on a polygenic background. Several „candidate” genes participating in the impaired insulin secretion and insulin action have already been investigated as the genes responsible for type 2 diabetes. These data showed the specificity in the population and most showed mild or modest association with the disease. Genomewide scans have resulted a number of significant diabetes susceptibility genes specific for a variety of populations, but these investigations have only resulted in the isolation of one gene (calpain 10) that is thought to contribute to type 2 diabetes. Most recent genomewide scans found loci on chromosome 20 in two different populations with significant segregation of type 2 diabetes. These loci are near to the region harboring the transcription factor hepatocyte nuclear factor genes. The transcription regulator HNF family is responsible for the regulation of the expression of several genes participating in the function of liver and pancreatic islet becoming a strong candidate for being a diabetes gene.]

Lege Artis Medicinae

[FIRST EXPERIENCES WITH INFLIXIMAB THERAPY IN CROHN’S DISEASE - RESULTS OF A HUNGARIAN MULTICENTRE STUDY]

SALAMON Ágnes, SIMON László, NEMESÁNSZKY Elemér

[INTRODUCTION - In recent years a number of clinical trials have been proved that infliximab, a monoclonal chimeric antibody against tumour necrosis factor (one of the proinflammatory cytokines) is an effective induction and maintenance therapy in severe and fistulizing Crohn’s disease. The authors summarize the results of the first Hungarian, open, multicenter clinical trial with biological treatment of Crohn’s disease. PATIENTS AND METHODS - Overall 74 patients in 9 study-centers were enrolled and allocated into the following two groups: 29 patients (31%) with severe, active, therapy-resistent clinical picture of Crohn’s disease and 45 individuals (61%) showing fistulizing forms of the disease. Infliximab was administered iv. in a dose of 5 mg/kg body mass one single occasion in patients formed the first group and altogether three times in cases suffering of fistulizing form of the disease. RESULTS - In active Crohn cases infliximab exerted its beneficial effect within 4 weeks (58% of patients improved) which was most pronounced at week 8th (79% of the patients was in better condition). However, in cases of fistulizing form longer period is neccessary for developing the effect. In 76% of treated patients proved to be efficacious within 14 weeks but later on flare-ups were observed. Concomittantly administered immunsuppressive agents did not altered the beneficial effect of infliximab. CONCLUSIONS - The results are proving the benefit of infliximab induction therapy both in cases of severe, active or in fistulizing forms of the disease. The article reviews the indication of infliximab treatment and provides a „user’s guide” for practizing clinicians.]

Lege Artis Medicinae

[LATE COMPLICATION OF EXTRANODAL LYMPHOMA FOLLOWING DERMATOMYOSITIS]

VÁNCSA Andrea, PONYI Andrea, CONSTANTIN Tamás, GERGELY Lajos, DANKÓ Katalin

[INTRODUCTION - Intramuscular follicular Bcell lymphoma is a rare entity of malignant lymphomas complicating the disease course of dermato/polymyositis. CASE REPORT - The authors report a female patient who was diagnosed with dermatomyositis in 1963 (age of 36). She was given steroid and hydroxychloroquine therapy. In 1973 she was treated with steroid for Boeck sarcoidosis. In 1999, she was treated for steroid therapy again for reoccurence of dermatomyositis. In 2000, a histological diagnosis of primary intramuscular follicular lymphoma was established from the right thigh region. She was given several courses of polychemotherapy and radiation therapy, but the lymphoma was difficult to control, and she died of progressive disease in 2003. CONCLUSION - It is an interesting case as 37 years elapsed since the diagnosis of dermatomyositis before the lymphoma has started. We could not state a definite relation between the myositis and the lymphoma but the increased frequency of autoimmune diseases is probably due to immune regulatory problems, that have eventually led to the appearance of the rapidly growing indolent lymphoma.]

Lege Artis Medicinae

[THE PSYCHO-SOCIAL BACKGROUND FACTORS OF INDUCED ABORTIONS BASED ON A REPRESENTATIVE NATIONAL SURVEY]

GYŐRFFY Zsuzsa, LŐRINCZ Jenő, ÁDÁM Szilvia, KOPP Mária

[INTRODUCTION - In Hungary the number of induced abortions is three times higher than in European Union countries. The exploration of the bio-psycho-social factors in the background of abortions may serve as an instrument to develop effective prevention. METHODS - The Hungarostudy 2002 national representative study included 12,634 interviewed subjects. The sample represents the Hungarian population above the age of 18, according to gender, age and geographical location. The aim of the health survey was to analyse the physical and psychological status of the Hungarian population as well as the psychosocial risk factors. The prevalence of abortion in the female sub-sample was 22%. We analysed the background factors of abortion with the help of a statistical analysis. RESULTS - The risk factors behind abortions can be grouped as: physical abuse on behalf of partners and/or parents, attachment disorder and early traumatisation, lack of social support, low financial status and inadequate social environment. These factors have all shown significant connection to abortions. Suicide attempts and suicidal thoughts, high Beck Depression (BDI) scores, smoking and alcohol consumption are also significant among those who had abortions. CONCLUSION - An important aim of the Hungarostudy 2002 survey and the follow-ups is to serve a more extensive and effective prevention by exploring the background factors of induced abortions.]

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Alexithymia is associated with cognitive impairment in patients with Parkinson’s disease

SENGUL Yildizhan, KOCAK Müge, CORAKCI Zeynep, SENGUL Serdar Hakan, USTUN Ismet

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.

Clinical Neuroscience

Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

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.

Hypertension and nephrology

[About the care of patients with hyperuricaemia and gout]

[This consensus document is intended to provide guidance for the effective and efficient treatment of asymptomatic individuals with high uric acid levels and gout patients.]

Clinical Neuroscience

[What happens to vertiginous population after emission from the Emergency Department?]

MAIHOUB Stefani, MOLNÁR András, CSIKÓS András, KANIZSAI Péter, TAMÁS László, SZIRMAI Ágnes

[Background – Dizziness is one of the most frequent complaints when a patient is searching for medical care and resolution. This can be a problematic presentation in the emergency department, both from a diagnostic and a management standpoint. Purpose – The aim of our study is to clarify what happens to patients after leaving the emergency department. Methods – 879 patients were examined at the Semmel­weis University Emergency Department with vertigo and dizziness. We sent a questionnaire to these patients and we had 308 completed papers back (110 male, 198 female patients, mean age 61.8 ± 12.31 SD), which we further analyzed. Results – Based on the emergency department diagnosis we had the following results: central vestibular lesion (n = 71), dizziness or giddiness (n = 64) and BPPV (n = 51) were among the most frequent diagnosis. Clarification of the final post-examination diagnosis took several days (28.8%), and weeks (24.2%). It was also noticed that 24.02% of this population never received a proper diagnosis. Among the population only 80 patients (25.8%) got proper diagnosis of their complaints, which was supported by qualitative statistical analysis (Cohen Kappa test) result (κ = 0.560). Discussion – The correlation between our emergency department diagnosis and final diagnosis given to patients is low, a phenomenon that is also observable in other countries. Therefore, patient follow-up is an important issue, including the importance of neurotology and possibly neurological examination. Conclusion – Emergency diagnosis of vertigo is a great challenge, but despite of difficulties the targeted and quick case history and exact examination can evaluate the central or peripheral cause of the balance disorder. Therefore, to prevent declination of the quality of life the importance of further investigation is high.]

Clinical Neuroscience

[The role of sleep in the relational memory processes ]

CSÁBI Eszter, ZÁMBÓ Ágnes, PROKECZ Lídia

[A growing body of evidence suggests that sleep plays an essential role in the consolidation of different memory systems, but less is known about the beneficial effect of sleep on relational memory processes and the recognition of emotional facial expressions, however, it is a fundamental cognitive skill in human everyday life. Thus, the study aims to investigate the effect of timing of learning and the role of sleep in relational memory processes. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. Our results suggest that the timing of learning and sleep plays an important role in the stabilizing process of memory representation to resist against forgetting.]