Lege Artis Medicinae

[Where to go from referral regulation?]

NAGY András László

NOVEMBER 30, 1994

Lege Artis Medicinae - 1994;4(11)

[The Social Security Act 1975/II states that, unless otherwise provided by law, the insured person is entitled to receive specialised care on the basis of a referral from a primary care doctor. The 1989 Council of Ministers Decree implementing the scheme stipulates that the insured person is also entitled to go directly to a specialist doctor's surgery in cases of urgent need. ]

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Lege Artis Medicinae

[The use of in situ hybridization in basic biomedical research and clinical medicine]

MIHÁLY András

[The essential purpose of in situ hybridization is the histochemical and/or autoradiographic detection of specific nucleic acid sequences in cells, tissues or chromosomes. The method is based on the use of artificially manufactured DNA or RNA fragments which are label led with isotope, enzymes, biotin or digoxigenin. The specific attachment of these labelled single-stranded nucleic acid probes to intra nuclear or intracytoplasmic nucleic acids can be used for the study of gene expression, for the establishment of viral infections, for the diagnosis of specific tumours and for the detection of hereditary diseases and chromosomal aberrations. The present review discusses the molecular basis of the method, the possibilities of labelling and detection and various other applications.]

Lege Artis Medicinae

[The role of nutrition in the etiology and prevention of dental caries]

BÁNÓCZY Jolán

[Nutritional factors play an important role in the development of both dental caries and periodontal diseases. Dental caries is a multi factorial disease. The changes in the composition and accumulation of dental plaque, caused by physical and chemical components of the diet, are influenced by quantitative, qualitative and frequency factors of carbohydrate consumption. In the course of bacterial degradation of consumed sugars, acids are formed on the tooth by inherent dental plaque monosaccharides, and enamel demineralization occurs. Due to the multifactorial etiology of dental caries, prevention is a complex activity. In addition to fluoride prevention, appropriate oral hygiene measures, directives for a healthy diet, changes in life-style and behaviour are also important factors. For the elimination of the deleterious influence of carbohydrates, the decrease of between-meal snacks, and the use of non-acidogenic sugar substitutes (xylitol) is recommended, which might contribute to a decrease in the high caries prevalence rates in Hungary. ]

Lege Artis Medicinae

[Activated protein c response: a novel disorder causing thrombophilia]

PÁL András, SAS Géza, HAYNAL Imre, VAJDA Zoltán, KUNCZ Gabriella, MOHAMED A. Lateiwish, RÓNA Tas Ágnes

[In 1993 Dahlbäck described the so-called in vitro activated protein C response phenomena, according to which, the addition of activated protein C to citrated plasma samples prolongs the activated partial thromboplastin times. It was hypothesised that this phenomenon is the result of the action of a new protein C cofactor, and in 1994, Dahlbäck demonstrated that this phenomenon is linked to variations of the factor V, which surprisingly serves as a cofactor for protein C. In this study, forty-one highly selected thrombophilic patients and forty controls were investigated for the activated protein C response phenomenon. The response to activated protein C was expressed as the ratio of two activated partial thromboplastin times, the first in the presence of and the second in the absence of activated protein C. Eighteen patients demonstrated a decreased response, i. e. the ratio of the times was below 2.0 (mean 1.3). The average of the entire group was 1.86. The average ratio of the control group was 3.12, and there were 2 persons with ratios below 2.0. The results of this study correspond with the data in the literature. This newly recognised phenomenon may be responsible for the majority of the formerly unrecognised biochemical defects leading to the clinical picture of thrombophilia. ]

Lege Artis Medicinae

[Treatment for simplex glaucoma, eye drops or early surgery?]

HOLLÓ Gábor

[Primary open-angle glaucoma (simplex) occurs in -0.5-2% of the European population over 40 years of age and is one of the most common causes of blindness in countries with good public health. The visual field and visual impairment that has already developed with glaucoma is irreversible, so diagnosing the disease at an early stage and starting treatment at an early stage is a prerequisite for saving sight. Unfortunately, initiating treatment does not mean that retinal ganglion cell death and the resulting visual field loss will disappear. Although its rate slows down, progression can be detected in a significant proportion of eyes even with treatment. This is why the focus of glaucoma research today is to analyse the long-term efficacy of treatment.]

Lege Artis Medicinae

[News]

[MOTESZ is admitted to the European Union of Medical Specialists (UEMS); Hungarian-French medical education seminar; Smoking in the third trimester hinders foetal development; In Canada, cigarettes will only be sold in plain packaging in the future; Smoking during pregnancy can cause asthma in the unborn child; Smoking or health centre in NEVI; Smoking ban has not reduced restaurant sales in the US; Smoking during pregnancy can cause limb developmental abnormalities in the foetus; Dr. Zoltán Ajkay's five studies on health insurance reform; Diagnostic centre in Pécs; International meeting in Balatonszárszó; New information centre in Budapest;]

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[Advanced Parkinson’s disease characteristics in clinical practice: Results from the OBSERVE-PD study and sub-analysis of the Hungarian data]

TAKÁTS Annamária, ASCHERMANN Zsuzsanna, VÉCSEI László, KLIVÉNYI Péter, DÉZSI Lívia, ZÁDORI Dénes, VALIKOVICS Attila, VARANNAI Lajos, ONUK Koray, KINCZEL Beatrix, KOVÁCS Norbert

[The majority of patients with advanced Parkinson’s disease are treated at specialized movement disorder centers. Currently, there is no clear consensus on how to define the stages of Parkinson’s disease; the proportion of Parkinson’s patients with advanced Parkinson’s disease, the referral process, and the clinical features used to characterize advanced Parkinson’s disease are not well delineated. The primary objective of this observational study was to evaluate the proportion of Parkinson’s patients identified as advanced patients according to physician’s judgment in all participating movement disorder centers across the study. Here we evaluate the Hungarian subset of the participating patients. The study was conducted in a cross-sectional, non-interventional, multi-country, multi-center format in 18 countries. Data were collected during a single patient visit. Current Parkinson’s disease status was assessed with Unified Parkinson’s Disease Rating Scale (UPDRS) parts II, III, IV, and V (modified Hoehn and Yahr staging). Non-motor symptoms were assessed using the PD Non-motor Symptoms Scale (NMSS); quality of life was assessed with the PD 8-item Quality-of-Life Questionnaire (PDQ-8). Parkinson’s disease was classified as advanced versus non-advanced based on physician assessment and on questions developed by the Delphi method. Overall, 2627 patients with Parkinson’s disease from 126 sites were documented. In Hungary, 100 patients with Parkinson’s disease were documented in four movement disorder centers, and, according to the physician assessment, 50% of these patients had advanced Parkinson’s disease. Their mean scores showed significantly higher impairment in those with, versus without advanced Parkinson’s disease: UPDRS II (14.1 vs. 9.2), UPDRS IV Q32 (1.1 vs. 0.0) and Q39 (1.1 vs. 0.5), UPDRS V (2.8 vs. 2.0) and PDQ-8 (29.1 vs. 18.9). Physicians in Hungarian movement disorder centers assessed that half of the Parkinson’s patients had advanced disease, with worse motor and non-motor symptom severity and worse QoL than those without advanced Parkinson’s disease. Despite being classified as eligible for invasive/device-aided treatment, that treatment had not been initiated in 25% of these patients.]

Clinical Neuroscience

Wnt pathway markers in low-grade and high-grade gliomas

NAGY Ádám, TOMPA Márton, KRABÓTH Zoltán, GARZULY Ferenc , MARÁCZI Alexandra , KÁLMÁN Bernadette

Aberrant activation of the Wnt pathway contributes to differentiation and maintenance of cancer stem cells underlying gliomagenesis. The aim of our research was to determine as to what degrees some Wnt markers are expressed in gliomas of different grades, lineages and molecular subtypes. Nine grade II, 10 grade III and 72 grade IV surgically removed, formalin-fixed paraffin-embedded glioma specimens were included. Mutation status of IDH1 codon 132 was defined by immunohistochemistry and pyrosequencing in all tumors. Grade II and III astrocytic and oligodendroglial tumors were further tested for the expression of p53 and ATRX by immunohistochemistry, and codeletion of 1p19q by fluorescent in situ hybridization. Expression levels of the non-canonical Wnt5a and Fzd2, and the canonical Wnt3a and beta-catenin Wnt pathway markers were determined by immunohistochemistry, and compared between subgroups stratified according to grade, lineage and the presence or absence of IDH1 R132H/C mutations. In the normal brain – grade II-IV glioma comparisons, a gradual increase was observed for the expressions of Wnt5a, Wnt3a, Fzd2 and beta-catenin. In the astroglial and oligodendroglial lineages of grade II and III gliomas, only the Wnt5a expression was significantly higher in the astroglial subgroup. Stratification according to the IDH1 status resulted in a significant increase of the Wnt3 expression in the wild type grade II-IV gliomas. These data extend previous observations and show a correlation of Wnt pathway activity with glioma grade. Further investigations of the Wnt marker expression regulation according to glioma lineage or IDH gene mutational status are in progress by using more exact molecular approaches.

Lege Artis Medicinae

[SEVERE CASE OF HYPOSMOTIC HYPERVOLAEMIA DUE TO WATER INTOXICATION]

BOTOS Péter, MARTON Sándor, KISS Katalin, KOZMA Zsolt, GION Gábor

[INTRODUCTION - The regulation of fluid and electrolite homeostasis is of crucial importance to maintain the normal biochemical processes of the body. Any sudden and remarkable change in the salt and water metabolism may result in serious consequences. CASE REPORT - In the case report the authors describe the history of a 17 old patient, who was admitted to the Emergency Department following seizures, with mental confusion, hyperpyrexia and hyponatremia. CONCLUSION - The aim of the authors was to present a severe case of hyposmolar hypervolaemia of uncommon etiology. They focus on the importance of the anamnestic history emphasizing the significance of diffrential diagnosis and demonstrate the therapeutic considerations.]

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[Frontotemporal dementia - Part I History, prevalence, clinical forms]

GALARIOTIS Vasilis, BÓDI Nikoletta, JANKA Zoltán, KÁLMÁN János

[The authors report a comprehensive publication consisting of three parts going into the details of history, prevalence, clinical forms, differential diagnosis, genetics, molecular pathomechanism, pathology, clinical diagnosis and treatment of frontotemporal dementia (FTD). The first part of the present review deals with history, prevalence and clinical forms of FTD. The prototypical FTD with circumscribed atrophy was first described by Arnold Pick; Alois Alzheimer found the intraneural inclusions in the patients’ brain. Later it was recognised that many patients had neither the atrophy nor the cellular changes, but genetic mutations have been identified. Frontotemporal dementia is a degenerative condition with unknown etiology in the frontal and anterior temporal lobes of the brain. It is a progressive neurobehavioral syndrome characterized by early decline in social interpersonal conduct, early impairment in the regulation of personal conduct, early emotional blunting, and early loss of insight. There are no reliable epidemiological studies on the prevalence of FTD, but it is well-accepted that FTD is a common cause for dementia before the age of 65 (it constitues approximately five percent of all irreversible dementias). The nomenclature of the FTD has been confusing and continues to be. Three major clinical syndromes can be identified: 1 frontal variant FTD (dementia of frontal type) in which changes in social behavior and personality predominate, 2. in semantic dementia (progressive fluent aphasia) there is a breakdown in the conceptual database which underlies language production and comprehension, 3. in progressive nonfluent aphasia the phonologic and syntactic components of language are affected. The authors report two cases, which can point to clinical symptoms and forms, and mention the problems of the differential diagnosis and therapy.]

Lege Artis Medicinae

[Psychoendocrine aspects of chronic stress, depression and eating disorders]

MOLNÁR Ildikó, MOLNÁR Gábor

[The brain is not only a central organ, but also a target of stress-related events. During chronic stress, many somatic and psychiatric disorders could be initiated by the decreased allostatic or adaptive abilities of the individual. The brain is involved in the regulation of stress-related events via hormones, neuropeptides, monoamines and cytokines. A number of endocrine diseases or hormonal changes are associated with behavioural, vegetative and emotional alterations, which occasionally lead to psychological disturbances, for example depression. The endocrine background is also reflected by the medical treatment of psychiatric patients, as demonstrated by the use of selective serotonin-reuptake inhibitors, and estrogen or levothyroxine substitution therapies. The psychiatric disorders presented here, such as the various forms of depression and eating disorders (anorexia and bulimia nervosa) are highlighted because of their frequencies and lifethreatening nature. By describing these disorders, we wish to aid their early diagnosis and treatment and to help incorporate them into everyday clinical practice.]