Hypertension and nephrology

[HDL Function Hypothesis Instead Of HDL Cholesterol Concentration]


SEPTEMBER 20, 2015

Hypertension and nephrology - 2015;19(04)



Further articles in this publication

Hypertension and nephrology

[RenBikeTour Balaton, 2015]

HORVÁTH Nikoletta

Hypertension and nephrology

[Effect of angiotensin-converting enzyme gene insertion/deletion polymorphism on survival of hemodialyzed patients]

KISS István, SZEGEDI János, KULCSÁR Imre, AMBRUS Csaba, KERKOVITS Lóránt, TISLÉR András, KISS József Zoltán

[Introduction: There are inconsistent observations regarding the earlier studies of the connection between ACE gene I/D polymorphism and the cardiovascular mortality. In the case of hemodialyzed patients suffering from chronic kidney disease the DD polymorphism connected to the elevated ACE levels was pointed out to be connected to the mortality rate primarily in patients with diabetes. The previous observations were verified by us during the analyzation of the short-term (three year period) survival data. We hypothesized that the significance of the ACE gene I / D polymorphism in chronic kidney disease would be verified and that during long-term observations (10 year period) the previous results could be validated. Method: In our non-invasive, prospective and multicentre study clinical data was collected from 746 patients whose blood samples were genotyped for ACE gene I/D single nucleotide polymorphism. Three genotype groups (I/I, I/D és D/D) were created during the analyzation of the mortality that was done using multivariate Cox proportional hazard models. Results: The mean age of the HD patients was 54.9 years, 46,8% of all patients were female. The prevalence of diabetes was 19.3%. ACE inhibitor therapy was prescribed for 47.9% of all patients. The median duration of dialysis before the start of the study was 23.8 months (IQR 11.2-47.1). The most frequent genotype was I/D (42.6%), followed by D/D (37.7%) and I/I (19.7%) genotypes. During the ten year follow- up of patients, the median follow-up was 29.8 months (IQR 12.6-63.4). The D/D genotypes showed lower survivability (I/I vs. D/D: log-rank test: p=0.04) from the group of patients without ACE inhibitor therapy. In multivarite Cox regression models D/D genotype compared with I/I genotype only showed that it significantly determines mortality in patients with no ACE inhibitor therapy (HR 0.67, 95% CI 0.46-0.97, p=0.03). Conclusions: There was no difference in survival among unselected patients with different genotypes. Our data suggests that hemodialyzed patients with the D/D genotype might have inferior outcome, and ACE inhibitor therapy may be associated with improved survival in this subgroup.]

Hypertension and nephrology

[A Simple Estimation Method is Available for our Everyday Work to Detect the Risk of Stroke]


Hypertension and nephrology

[Adherence to the Prescribed Medicines and their Dosing is Almost as Important as Reaching the Target Value in Hypertensive Patients]

KISS István, KÉKES Ede

Hypertension and nephrology

[Changes in the Thickness and Rigidity of Aortic Wall with Atherosclerosis: Results of Long-Term Follow-Up as per the MESA (Multi-Ethnic Study of Atherosclerosis) Study]


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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

Autonomic nervous system may be affected after carpal tunnel syndrome surgery: A possible mechanism for persistence of symptoms after surgery

ONDER Burcu, KELES Yavuz Betul

After carpal tunnel surgery, some patients report complaints such as edema, pain, and numbness. Purpose – The aim of this study was to evaluate autonomic nervous system function in patients with a history of carpal tunnel surgery using sympathetic skin response (SSR). Thirty three patients (55 ±10 years old) with a history of unilateral operation for carpal tunnel syndrome were included in the study. The SSR test was performed for both hands. Both upper extremities median and ulnar nerve conduction results were recorded. A reduced amplitude (p=0.006) and delayed latency (p<0.0001) were detected in the SSR test on the operated side compared to contralateral side. There was no correlation between SSR and carpal tunnel syndrome severity. Although complex regional pain syndrome does not develop in patients after carpal tunnel surgery, some of the complaints may be caused by effects on the autonomic nervous system.

Hypertension and nephrology

[Polycystic kidney]

DOLGOS Szilveszter, TÁRNOKI Ádám Domonkos, TÁRNOKI Dávid László

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Clinical Neuroscience

[Clinical neurophysiological methods in diagnosis and treatment of cerebrovascular diseases]

NAGY Ildikó, FABÓ Dániel

[Neurophysiological methods are gaining ground in the diagnosis and therapy of cerebrovascular disease. While the role of the EEG (electroencephalography) in the diagnosis of post-stroke epilepsy is constant, quantitative EEG para-meters, as new indicators of early efficiency after thrombolysis or in prognosis of patient’s condition have proved their effectiveness in several clinical studies. In intensive care units, continuous EEG monitoring of critically ill patients became part of neurointenzive care protocols. SSEP (somatosesnsory evoked potencial) and EEG performed during carotid endarterectomy, are early indicative intraoperativ neuromonitoring methods of poor outcome. Neurorehabilitation is a newly discovered area of neurophysiology. Clinical studies have demonstrated the effectiveness of repetitive transcranial magnetic stimulation (rTMS) in the rehabilitation of stroke patients. Brain computer interface mark the onset of modern rehabi-litation, where the function deficit is replaced by robotic tehnology. ]

Clinical Neuroscience

Mid-term oral isotretinoin therapy causes a predominantly sensory demyelinating neuropathy

ALTUN Yasar, INAN Esra

Aim - The purpose of this prospective study was to investigate whether mid-term treatment with oral isotretinoin may impact peripheral nerve function. Methods - In this study, we included 28 patients with no apparent neurological or neurophysiological findings. The patients received treatment with oral isotretinoin for papulopustular or nodulocystic acne. The patients with normal findings in the first examination were given 1 mg/kg/day oral isotretinoin. Neurological examinations and electroneurographic studies were performed before and 6 months after the onset of isotretinoin treatment. Results - Clinical examinations and electroneurographic evaluations prior to treatment revealed no abnormalities in any of the patients. However, 20 patients (72%) displayed one or more abnormal values in the tested parameters after treatment. Although the mean amplitudes of compound muscle action potential of the ulnar and median nerves did not vary, significant decreases were observed in the mean sensory conduction velocities of median, ulnar, sural, medial plantar, medial dorsal cutaneous, and dorsal sural nerves 6 months after the onset of treatment. Conclusion - Systemic use of isotretinoin may cause electroneurographic changes. Probable electroneurographic alterations may be detected at a much earlier period via dorsal sural nerve tracing when electrophysiological methods used in routine clinical practice cannot detect these changes.