Search results

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

SEPTEMBER 30, 2020

[Post-career development of cardiometabolic changes and hypertension in competitive athletes]

LELBACH Ádám, KÁNTOR Márk, KOLLER Ákos

[Regular physical activity is essential in delaying the aging processes (e.g. arterial remodelling – stiffening, metabolism, bodyweight), the beneficial effects of competitive sports – especially strength sports – according to the recent data of the literature are questionable. The beneficial effects of physical activity on the cardiovascular (CV) system are well known, however less is known regarding the delayed impacts of high intensity competitive sports on the CV system, especially after the sport career is over. This review summarizes the effects of active competitive sport and the post-career period on the cardiometabolic system with special attention to the systemic blood pressure and the development of metabolic syndrome. After sport career, the welldeveloped high performance cardiovascular- and metabolic system suddenly is much less used, but still supported by sport-level diet. It is well known that hypertension is a significant pathogenic factor in the development of cardiovascular diseases, characterized – among others – by reduced elasticity of large- and medium- sized vessels thereby importantly contributing to the development of systolic hypertension. Inflammation and thrombus formation both play an important role in the development of vascular injury and atherosclerosis. The increased tone of microvessels can impair the blood supply of certain organs, including the coronary circulation. It has been ample shown, that regular non-competitive, aerobic exercise activities are important factors in preventing hypertension. Such pathological changes become more evident after the development of post-career obesity, as well as the development of hypertension due to the activation of the renin-angiotensin system through sodium retention and other metabolic changes (increased glucose tolerance, insulin resistance, type II diabetes mellitus). It has been ample shown, that regular non-competitive, dynamic aerobic exercise activities are important factors in preventing hypertension. The frequency, intensity, type, and time (FITT) principle of exercise prescription is the first and common therapeutic approach, which represents the translation of cardiovascular basic science research results into hypertension treatment, thus can provide a personalized physical activity program/therapy according to medical needs not just for the post-career sportspersons, but the wide range of patients.]

Hypertension and nephrology

MAY 10, 2019

[Diabetology in dialysis]

MÁCSAI Emília, HALMAI Richárd, NEMERE Éva, BRASNYÓ Pál, KISS István

[According to epidemiological data, the number of diabetic patients requiring dialysis is increasing. Burnt-out diabetes, new onset diabetes during chronic dialysis treatment and new onset diabetes after transplantation diabetes are new types of diabetes compared to the traditional division forms. It is utmost important to evaluate education ability and acceptance the core values of lifestyle changes. Clear guidelines for oral anti-diabetic and insulin therapy have not yet been developed since this group of patients did not participate in previous major surveys. In order to formulate individualized therapeutic recommendations, it is imperative to perform regular glucose self-monitoring, which is also the cornerstone of solving unexpected situations. Both in hemodialysis and peritoneal dialysis, special considerations should be applied to the diabetic patient group, this review focuses on the current understanding of available relevant knowledge and summarizes presumably extrarenal diabetic complications as well.]

Lege Artis Medicinae

JULY 20, 2017

[We are witnessing a paradigm shift in the management of type 2 diabetes mellitus. Where to place the SGLT2 inhibitors?]

KIS János Tibor

[We are witnessing a paradigm shift in the management of type 2 diabetes mellitus. Instead of correcting carbohydrate parameters only, we need to concentrate on preventing cardiovascular complications as well. The onset of non-insulin formulations is also a shift from previous practice. The author examines the position of SGLT2 inhibitors in the changed therapeutic practice. ]

Lege Artis Medicinae

JULY 20, 2017

[Relationship between adipokinome and lipid parameters in Hungarian obese patients]

LŐRINCZ Hajnalka

[Since the prevalence of obesity has been dramatically increasing worldwide, a better understanding of obesity-related comorbidities leading to carbohydrate and lipid metabolism disorders has become essential. As an active endocrine organ, white adipose tissue secretes adipokines with diverse biological functions. We have found strong correlations between serum chemerin level and atherogenic lipoprotein sub-fractions in obese non-diabetic patients. To better characterize obese patients with and without manifest insulin resistance, we plan to determine serum levels of novel adipokines (omentin-1, vaspin, visfatin, lipocalin-2 and plasminogen activator inhibitor-1) and various oxidative stress markers including paraoxonase-1 activity, tumor necrosis factor-alfa and interleukin-6 levels, as well as low- and high-density lipoprotein subfractions in them and compare their data with lean individuals. We plan to determine correlations between the levels of novel adipokines and oxidative stress markers and lipoprotein subfractions. Furthermore, based upon our previous observations, we plan to study the potential alterations in the adipokine profile and the ratios of lipoprotein subfractions during a 5-year follow-up in obese patients. Our expected results may help to characterize the involvement of the adipokine profile in the regulation of lipoprotein metabolism. Early screening and treatment of lipid abnormalities may help to reduce the risk of cardiovascular events in obesity. ]

Clinical Neuroscience

MAY 30, 2017

Case report of a woman with anti amphiphysin positive stiff person syndrome

MANHALTER Nóra, GYÖRFI Orsolya, BOROS Erzsébet, BOKOR Magdolna, FAZEKAS Ferenc, DÉNES Zoltán, FABÓ Dániel, KAMONDI Anita, ERÕSS Loránd

Stiff person syndrome is a rare neuroimmunological disease, characterized by severe, involuntary stiffness with superimposed painful muscle spasms, which are worsened by external stimuli. The classical form is associated with high levels of antibodies against glutamic acid decarboxylase. One of the variant forms is associated with antibodies against amphiphysin. This entity is a paraneoplastic syndrome, caused primarily by breast cancer, secondarily by lung cancer. Symptomatic therapy of anti amphiphysin positive stiff person syndrome includes treatment with benzodiazepines and baclofen (including intrathecal baclofen therapy). The effect of immunological therapies is controversial. Treatment of the underlying cancer may be very effective. In this report, we describe a 68 year old female presenting with an unusally rapidly developing anti amphiphysin positive stiff person syndrome, which was associated with breast cancer. Her painful spasms abolished after intrathecal baclofen treatment was initiated. Her condition improved spontaneously and significantly after cancer treatment, which enabled to start her complex rehabilitation and the simultaneous dose reduction of the intrathecal baclofen. The bedridden patient improved to using a rollator walker and the baclofen pump could be removed 18 monthes after breast surgery. This highlights the importance of cancer screening and treatment in anti amphiphysin positive stiff person syndrome cases.

Hypertension and nephrology

DECEMBER 20, 2016

[Deeper analysis of nebivolol effects]

KÉKES Ede

[Author presents the formation of nitric oxide as a largest vasodilator of human endothelium as well as the endothelial dysfunction a result of formation at adrenergic stimulus. He demonstrates in detail the benefits of selective β-1 blocker and β-3 adrenergic agonist nebivolol in the vascular system. This drug has also receptor independent effects. Complex effects of nebivolol causes vasodilation, inhibits oxidative stress and it is capable to neutralize the effects of free oxygen radicals and as a result the endothelial function will be better. Its clinical effects and the less wellknown beneficial properties are listed. The use of drug is discussed especially in hypertensives with smoking, COPD or PAD. The β-3 agonist effect provides positive reactions not only in the adipocytes and the myocardial tissue. but in the skeletal muscle as well: Increase in energy expenditure - as a compensatory mechanism - is increased in obesity and the glucose uptake + storage on skeletal muscle cells are increased in hyperglycemia. The insulin sensitivity will be better, leptin level is decreased, adiponectin level is increased by nebivolol. It is assumed this drug has antidiabetic and anti-obesity effects.]

Lege Artis Medicinae

NOVEMBER 03, 2015

[Insulin pump therapy in type 1 diabetes in the light of efficacy, safety, and quality of life]

HIDVÉGI Tibor, SZEPESI Gábor, LUKÁCS Andrea, BARKAI László

[The level of glycaemic control necessary to achieve optimal outcomes in subjects with type 1 diabetes mellitus typically requires intensified insulin therapy using multiple daily injections or continuous subcutaneous insulin infusion (CSII). For CSII, the insulins of choice are the rapid-acting insulin analogues: insulin aspart, insulin lispro and insulin glulisine. The advantages of CSII over multiple daily injections in adult and paediatric populations with type 1 diabetes include superior glycaemic control, lower insulin requirements and better health-related quality of life/patient satisfaction. An association between CSII and reduced hypoglycaemic risk is more consistent in children/adolescents than in adults. The use of CSII is widely recommended in both adult and pediatric type 1 diabetes mellitus populations, but is limited in pregnant patients. The review also discusses the result of the “A non-interventional trial to observe the effect of the use of Accu Chek Combo device on quality of life and metabolic control“(COM-1101-HU 1.3).]

Hypertension and nephrology

JUNE 25, 2015

[The use of beta-blockers in Hungary 2007-2014 based on data from National Health Insurance]

BARNA István, GYURCSÁNYI András

[disease, various rhythm disturbances, migraine, essential tremor case, addition to the treatment of endocrine disorders caused tachycardia and also may be used in the treatment of systolic and diastolic heart failure. Using the National Health Insurance Fund (NHIF) database, we analyzed changes in the turnover of beta-blockers used domestically between 2007 and 2014. At the beginning of the period more than 50% was metoprolol as the used active ingredient, the end of the period, nebivolol became the most frequently assigned active agent betablocker (29%). Besides nebivolol the use of bisoprolol and carvedilol increased, among the “old” beta-blockers the use of pindolol, bopindolol continuously decreases, propranolol and sotalolol consumption stagnant after the initial small decrease. Metabolic syndrome, disorders of carbohydrate metabolism, in case of sleep apnea the advantage of nebivolol is accompanied by the status of enhanced sympathetic activity and consequent reduction of RAS activation. Vasodilation, inhibition of plaque formation, reduction of platelet aggregation and anti-proliferative effects of nebivolol are its unique characteristics in the beta-blocker group. Improves insulin sensitivity, thus it is not characterized by a long-term side effects that cause diabetes. Effective reduction in the central blood pressure with nebivolol is likely to reduce the risk of complications in stroke and other related central blood pressure. Therefore, if the recommendations of the international and domestic support for considering it is not surprising that the use of metoprolol reduced such a large extent and how nebivolol covered the significant majority of the entire domestic beta-blockers market. Carvedilol was before the second and currently has become the 3rd or 4th most frequently used beta blocker. The decrease in the use of metoprolol undoubtedly caused by change in the recommendations, getting out of the subsidized products, and the appearance of the above known, new effective drugs.]