Lege Artis Medicinae

[Genomics, the science of biological complexity]

FALUS ANDRÁS1

DECEMBER 21, 2011

Lege Artis Medicinae - 2011;21(12)

AFFILIATIONS

  1. Semmelweis Egyetem, Genetikai, Sejt- és Immunbiológiai Intézet

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Further articles in this publication

Lege Artis Medicinae

[Occurrence of cardiometabolic risk factors among shift workers]

JERMENDY György, NÁDASI Judit, HEGYI Ilona, VASAS István, HIDVÉGI Tibor

[INTRODUCTION - Shift workers have an impaired circadian rhythm, which might have an adverse effect on their health. In order to assess cardiometabolic risk in shift workers, a cross-sectional study was performed among active workers (aged 25-66 years, with a minimal shift working experience of 5 years). METHODS - In total 481 workers (121 men, 360 women) registered by the occupational health service were enrolled in our study. Most participants worked in the light industry (58.2%) or in public service (23.9%). Following questionnaire-based data recording, anthropometric measurements and physical examination were performed and fasting venous blood sample was taken for measuring laboratory parameters. Data from shift workers (n=234, 54 men and 180 women, age: 43.9±8.1 years) were compared with those of day workers (n=247, 67 men and 180 women, age: 42.8±8.5 years). RESULTS - Compared with day workers, shift workers had bigger weight (76.6±16.1 vs 73.9±17.6 kg; p<0.05), higher BMI index (27.5±5.3 vs 26.0±4.9 kg/m2; p<0.01) and systolic blood pressure (123±19 vs 119±16 mmHg, p<0.01), and higher prevalence rate of diabetes (4.3 vs 1.2 %; p<0.05) and cardiovascular diseases (3.8 vs 0.8 %; p<0.05). In addition, the proportion of participants who performed regular physical activity was lower (20.6 vs 38.7 %; p<0.001) and that of current smokers were higher (35.0 % vs 19.5 %; p<0.001) in shift workers than in day workers. In laboratory findings, only one difference has been found: HDL-cholesterol level was lower among women (shift workers versus workers: 1.56±0.32 vs 1.68±0.36 mmol/l; p<0.01). CONCLUSION - Long-term shift work (day-night) results in a less healthy lifestyle and worse cardiometabolic risk factors compared with day work. Thus, our study highlights the importance of measures for preventing cardiovascular diseases in shift workers.]

Lege Artis Medicinae

[They are really saved]

FARSANG Csaba

Lege Artis Medicinae

[The newest DPP-4-inhibitor: linagliptin]

KIS János Tibor

[Linagliptin is a xantin-based, highly selective, potent inhibitor of dipeptidyl peptidase- IV (DPP-4). By inhibiting DPP-4, linagliptin reduces the degradation of endogenous incretin hormones, and thus increases insulin secretion and decreases glucagon secretion in the pancreatic islets in a glucose-dependent manner. The author summarises the most important clinical trials with linagliptin, which highlight those features of linagliptin that distinguish it from other DPP-4 inhibitors.]

Lege Artis Medicinae

[Aging men and climax of males]

KOPA Zsolt, RIESZ Péter, ROMICS Imre

Lege Artis Medicinae

[Social Responsibilities of a Physician ]

SÓLYOM Antal, BÁLINT Géza

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Isolated hypoglossal nerve palsy due to a jugular foramen schwannoma

ÖZTOP-CAKMAK Özgür, VANLI-YAVUZ Ebru, AYGÜN Serhat, BASTAN Birgül, EGEMEN Emrah, SOLAROGLU Ihsan, GURSOY-OZDEMIR Yesemin

Introduction – Although the involvement of the hypoglossal nerve together with other cranial nerves is common in several pathological conditions of the brain, particularly the brainstem, isolated hypoglossal nerve palsy is a rare condition and a diagnostic challenge. Case presentation – The presented patient arrived to the hospital with a history of slurred speech and an uncomfortable sensation on his tongue. Neurological examination showed left-sided hemiatrophy of the tongue with fasciculations and deviation towards the left side during protrusion. Based on the clinical and MRI findings, a diagnosis of hypoglossal nerve schwannoma was made. Discussion – Hypoglossal nerve palsy may arise from multiple causes such as trauma, infections, neoplasms, and endocrine, autoimmune and vascular pathologies. In our case, the isolated involvement of the hypoglossal nerve was at the skull base segment, where the damage to the hypoglossal nerve may occur mostly due to metastasis, nasopharyngeal carcinomas, nerve sheath tumors and glomus tumors. Conclusion – Because of the complexity of the region’s anatomy, the patient diagnosed with hypoglossal nerve schwannoma was referred for gamma knife radiosurgery.

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[Attracted by science III. - My scientific life product of 55 years: what have I achieved?]

RADÓ János

[Author analyses the scientific results of his own clinical research work by evaluating his product in a „traditional way”, and only after then supplemented by scientometric data (citedness). From the 148 articles which has been published in foreign language (mostly in English) in abroad, 10 was grouped into the category of “new procedure/ recognition”, 40 into “original data/significant new statement”, and 98 into “new observation (statement) in a detailed question”. He has found close correlation between the values of the publications grouped by the traditional evaluation and the corresponding numbers of citations. Author discusses in the light of his own data the evaluating role of citedness with the hope to help by this motivated young scholars to plan their own future.]

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[INSULIN RESISTANCE: FOCUS ON THE ADIPOSE TISSUE]

URICH Elemér

[Insulin resistance is defined as a state of subnormal biological response to normal quantity of insulin. This phenomenon was first described by Hinsworth and Kerr in 1939, however it has come to the centre of interest only in the last two decades. It is the central pathogenetic factor of type 2 diabetes and the more complex clinical entity of metabolic syndrome, consequently also referred to as insulin resistance syndrome. In the background of insulin resistance alterations of the adipose tissue can be observed which clinically means obesity in most of the cases, however, this issue cannot be simplified to obesity only as increase in adipose tissue growth may be beneficial in certain cases. Current article discusses the explanation of this paradox and the pathophysiologic link between adipose tissue and insulin resistance. It also reviews the therapeutic aspects of insulin resistance emphasizing the role of thiazolidinedione type drugs having recently joined the therapeutic palette.]

Clinical Neuroscience

[Meningioma and pregnancy]

BENCZE János, VARKOLY Gréta, HORTOBÁGYI Tibor

[Meningiomas are one of the most frequent primary intracranial tumours, representing one-third of all intracranialneoplasms. The vast majority of meningiomas are histologically benign, but recurrence and progression is quite frequent. They occur usually between the 6th and 7th decade, the female/male ratio is 3:2. Although rare in pregnancy, when occurring, they can cause serious, life-threatening complications due to rapid growth and unfavourable localisation. There are two dominant hypothesis explaining rapid growth in pregnancy: the role of hormonal effects and hemodynamic changes. Several studies tested these theories but none provided unequivocal answer probably because the pathomechanism is complex and multifactorial. We provide an overview of the pathomechanism of meningiomas in pregnancy with emphasis on data obtained by advanced neuropathological, molecular biological, bioinformatic, imaging and epidemiological methods. A better understanding of the processes leading to meningioma development and growth in pregnancy will help us to design personalized therapy and reduce morbidity and mortality.]

Lege Artis Medicinae

[Clinical pharmacologic principles and problems related to the clinical use of innovative and similar biological medicines]

KERPEL-FRONIUS Sándor

[The active substances in the biological medicinal products are macromolecules, primarily proteins most of which are currently produced by various biotechnological methods in different biological systems. The spatial structure of the macromolecular active substances cannot be accurately determined by the presently available methods. Therefore, both physico-chemical and biological methods are needed for the control of their quality and production. The active proteins induce immunologic reactions in the organism. The appearance of neutralizing antibodies frequently leads to the inhibition of the effect of the biological medicines. The European Medicines Agency (EMA) registers the medicinal products containing similar macromolecular active substances produced by biotechnological methods as biosimilar agents, since their chemical identity cannot be proven. The similarities and differences of their biological and immunological effects can be evaluated only in comparative non-clinical and clinical trials. The frequent exchange of biological medicines increases the appearance of antibodies in the patients, therefore the substitution of biological drugs should be done only by the treating physicians if clinically necessary.]