Search results

Clinical Neuroscience

NOVEMBER 30, 2020

[Covid-19 associated neurological disorders]

SZÔTS Mónika, PÉTERFI Anna, GERÖLY Júlia, NAGY Ferenc

[The clinical signs of SARS-CoV-2 infection has become more recognisable in recent times. In addition to common symptoms such as fever, cough, dyspnea, pneumonia and ageusia, less common complications can be identified, including many neurological manifestations. In this paper, we discuss three Covid-19 associated neurological disorders (Case 1: Covid-19 encephalitis, Case 2: Covid-19 organic headache, Case 3: SARS-CoV-2-infection and ischaemic stroke). We emphasize in our multiple case study that during the present pandemic, it is especially important for neurologists to be aware of the nervous system complications of the virus infection, thus saving unnecessary examinations and reducing the frequency of patients’ contact with health care personnel. ]

Lege Artis Medicinae

OCTOBER 21, 2020

[Atherosclerosis: an ancient process in a new interpretation]

REIBER István

[The progress of atherosclerosis starts in childhood and lasts until the body dies. Most cardiovascular diseases and deaths can be traced back to atherosclerotic vascular changes. The process is thousands of years old, but its complex pathophysiology becomes recognized and realised only nowadays. Based on the evidence available today, atherosclerosis is such a chronic inflammatory disease of large- and medium-sized arteries, which is characterized by lipoproteins and immune cells transformed through oxidative and other changes and subendothelial accumulation of extracellular matrix. Innate and adaptive immunity provide a complex regulating system of atherogenesis, which while directing specifically the pro-atherogenic inflammatory and atheroprotective anti-inflammatory processes intensify plaque progression or even stabilize them respectively. With our growing knowledge about the pathology of atherogenesis, we can further improve the identification of cardiovascular risk conditions and apply more personalized therapeutic strategies.]

Clinical Neuroscience

SEPTEMBER 30, 2020

[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.]

Clinical Oncology

APRIL 10, 2019

[Metals and cancer]

VETLÉNYI Enikő, RÁCZ Gergely

[We often tend to forget about our environment when looking for the origin of a disease. Inhaled air, drinking water and food, substances in contact with the skin all have an effect on the human body. Metals are indispensable parts of our everyday lives, their mining, processing and use cause a continuous exposure to them. Metal exert their effects on the body in various ways. Many of them are essential for maintaining homeostasis, but excessive or harmful metal intake can lead to health damage, including tumour formation through multiple attack points. Metals substitute each other during different transport processes and in the structure of proteins, they cause oxidative stress and bind to DNA, thereby damaging it. Applying them appropriately, the proapoptotic effect of the metal compounds is brought to the fore, thus becoming a therapeutic tool for tumours. Nowadays, platinum(II) compounds are widely used as chemotherapeutic agents and there are many ongoing studies to fi nd metal compounds with an ideal therapeutic and side-effect profi le. The aims of this article were to draw the attention to the dangers of metals in relation to cancer and to highlight their diverse application possibilities in current and future cancer therapy and diagnostics.]

Clinical Oncology

DECEMBER 30, 2019

[Chemicals and tumors]

MARCSEK Zoltán

[Tumorigenesis is driven usually by non-lethal genetic alterations such as malfunctioning regulatory systems; mainly by inactivating suppressor genes or activating proto-oncogenes or malfunctioning of apoptatic system or decresed activity of the DNA repair system. Several chemicals induces mutations in the regulatory genes forces the cell for continous divisions increasing the chance of accumulation of further mutations. Chemicals, inducing mutations (mutagens) increase the rate of tumor occurrence, are carcinogens.]

Clinical Neuroscience

NOVEMBER 30, 2020

[New results of neuroscience research – the background of symptomatological and etiological diversity of mental disorders]

OSVÁTH Péter

[Nowadays, the focus of genetic, neurobiological, neuropsychological and psychosocial research is on a more accurate discovery of the etiology of mental illnesses, especially with regard to the role and complex interactions of certain risk factors. It is increasingly challenging to interpret the results of different aspects and methodologies in a coherent theoretical framework, as this can only lead to a more accurate understanding of the complexity and mechanism of the psychiatric disorders. The main aim of this paper to overview recent studies on etiological background of mental disorders and to present the most important aspects of the Research Domain Criteria (RDoC) system. Review of reports from comprehensive studies published in the most important psychiatric journals over the past five years summarizing new findings on the etio­logy of mental disorders. Although current classifications indicate that mental disorders are strictly distinct diagnostic categories, new findings suggest that these marked differences in symptomatic, genetic, and neurobiological backgrounds are not detectable, as many mental disorders have been identified as having common molecular genetic risk factors, which may indicate common neurobiological pathomechanisms. Research results support the need for a rethinking of psychiatric nosology on an etiological basis and represent an important step forward in the more accurate exploration of the neurobiological background factors of mental disorders and thus in the development of more targeted therapeutic approaches. The development of the RDoC system can be a great help in this, as this dimensional approach offers the possibility of integrating the - often diffuse or even contradictory - neuroscientific research findings into a unified theoretical framework for the etiology, nosology and treatment of mental disorders. ]

Clinical Neuroscience

NOVEMBER 30, 2020

Positive airway pressure normalizes glucose metabolism in obstructive sleep apnea independent of diabetes and obesity

KABELOĞLU Vasfiye, SENEL Benbir Gulçin, KARADENIZ Derya

The relationship among obstructive sleep apnea syndrome (OSAS), type 2 diabetes mellitus (DM2) and obesity is very complex and multi-directional. Obesity and increased visceral fat are important perpetuating factors for DM2 in patients with OSAS. On the other hand, OSAS itself leads to obesity by causing both leptin and insulin resistance as a consequence of activation of the sympathetic nervous system. Risk for developing DM2 further increases in patients with OSAS and obesity. Data regarding effects of positive airway pressure (PAP) therapy, gold standard treatment for OSAS, on glycemic control were inconsistent due to variability in duration of and adherence to PAP therapy. In our cohort study we investigated effects of PAP treatment on glucose metabolism in normal-weighted non-diabetic OSAS patients, in obese non-diabetic OSAS patients, and in OSAS patients with DM2. We prospectively analyzed 67 patients diagnosed with OSAS and documented to be effectively treated with PAP therapy for three months. Apnea-hypopnea index was highest in the diabetic group, being significantly higher than in the normal-weighted group (p=0.021). Mean HOMA values were significantly higher in obese (p=0.002) and diabetic group (p=0.001) than normal-weighted group; the differences were still significant after PAP therapy. HbA1c levels were significantly higher in diabetic group compared to those in normal-weighted (p=0.012) and obese (p=0.001) groups. After PAP treatment, decrease in HbA1c levels were significant in normal-weighted (p=0.008), obese (p=0.034), and diabetic (p=0.011) groups. There was no correlation with the change in HbA1c levels and age (p=0.212), BMI (p=0.322), AHI (p=0.098) or oxygen levels (p=0.122). Our study showed that treatment of OSAS by PAP therapy offers beneficial effect on glucose metabolism, not only in diabetic patients, but also in obese and normal-weighted OSAS patients. Although data regarding overall effects of PAP therapy on glycemic control present contradictory results in the literature, it should be emphasized that duration and adherence to PAP therapy were main determinants for beneficial outcome of treatment.

Hypertension and nephrology

NOVEMBER 04, 2020

[The ACE2-Ang(1-7)-Mas axis as a new option for lowering blood pressure]

KÉKES Ede

[The ACE2-Ang(1-7)-Mas axis counterbalances the ACE/Ang II-AT1R axis in our body in order to maintain normal homeostasis. During the Covid-19 pandemic, this protective system came to the fore again and its beneficial effects on the cardiovascular-metabolic system, including the significant antihypertensive effect, are being clarified. In our brief summary, we analyze the essential aspects of this research.]

Lege Artis Medicinae

OCTOBER 21, 2020

[Attitudes towards obesity in the health care system]

CZEGLÉDI Edit

[Bias, prejudice and discrimination are part of the everyday life of people with obesity, even in the health care system. Obesity-related prejudices can lead to disrespectful, humiliating treatment of pa­tients with excess weight and impair the quality of care for patients. There is a bidirectional relationship between stigmatization of obesity and obesity: discrimination against obesity is frequent, while stigmatization experiences lead to additional weight gain and result in avoidance of health care, and health deterioration and increas­ed risk of mortality. The aim of the study is to raise awareness among professionals about obesity-related prejudices and dis­crimination, and to present strategies to reduce stigmatization of obesity in the health care system. All this will serve better care and may have public health significance in the long run.]

Hypertension and nephrology

SEPTEMBER 30, 2020

[Non-pharmacological treatment of hypertension and reducing cardiovascular risk in general practitioners’ clusters]

MOHOS András, KOZMA Anna, MARKÓ-KUCSERA Mária, MESTER Lajos

[Hypertension and cardiovascular diseases are major public health issues. In their treatment non-pharmacological methods have a role in every case either alone or as a complement. Patient adherence is a key factor. The role of primary care is very important in the management and with general practitioners’ cluster model and with the involvement of new primary care professionals (for example: dietetitian, physiotherapist) the opportunities are expanding. In the A GP Cluster and in the Marosmenti GP Cluster the analysis of the patients’ results who participated in an individual health status examination, in dietetic and in physiotherapy services. Assessing the professionals’ attitudes towards GP cluster model. In the A GP Cluster 2409 people, in the Marosmenti GP Cluster 1826 people participated in an individual health status examination. 14.6% and 19.9% of the participants were under the age of 18. 58.9% and 60.7% of the participants over the age of 18 were female. 1083 and 232 patients used physiotherapy services, 147 and 187 people used dietetic services. The age distribution of the individual health status examinations is correspond to the Hungarian age pyramid. In addition to the preventive approach came into view the community based local health care services. The GP cluster model was welcomed by the patients, the physiotherapy was more popular than dietetic among them. All professionals of the GP clusters had a positive opinion of the professional work done in the project. Conclusion: There is a demand both from the patients and the healthcare professionals for the GP cluster concept. The establishing of an appropriate monitoring system and creating long-term, sustainable operating conditions are essential for achieving lasting social health gains. ]