Elek Dinya

Recovery of motor disability and spasticity in post-stroke after repetitive transcranial magnetic stimulation (rTMS).

Lately it has been indicated that the stimulation of both sides of the motor cortices with different frequencies of rTMS can improve the behaviour of a paretic arm. We studied the effect of rTMS in severe cases of post-stroke after nearly 10 years. They had wide hemispheric lesion and their paresis had not changed for more than 5 years. The majority of patients could not move their fingers on the affected side. In our study we examined whether the active movement could be induced by rTMS even several years after stroke and which hemisphere (affected or unaffected) stimulated by rTMS would be the best location for attenuating the spasticity and for developing movement in the paretic arm. Sixty-four patients (more than 5 years after stroke in a stable state) were followed for 3 months. They were treated with rTMS with 1 Hz at 30% of 2.3T 100 stimuli per session twice a day for a week. The area to be stimulated was chosen according to the evoked movement by TMS in the paretic arm. That way, four groups were created and compared. In group A, where both hemispheres were stimulated (because of the single stimulation of TMS could induce movement from both sides of hemispheres) the spasticity decreased but the movement could not be influenced. A highly significant improvement in spasticity, in movement induction and in the behaviour of paresis was observed in group B, where before treatment, there was no evoked movement in the paretic arm from stimulating either hemispheres of the brain. For treatment we stimulated the unaffected hemisphere from where the intact arm is moved (ipsilateral to the paretic side). In both groups C (contralateral hemisphere to the paretic arm) and D (ipsilaterally evoked movement in the paretic arm), the spasticity decreased during the first week, but the movement of the paretic arm improved only in group C. It seems that spasticity can be modified by the stimulation either the affected or the unaffected hemisphere, but the induction of movement can be achieved only by the stimulation of an intact motor pathway and its surrounding area (groups B and C). The improvement in paretic extremities can be achieved with rTMS even after years of stroke when the traditional rehabilitation has failed.

Intraoperative and postoperative risk factors for prolonged mechanical ventilation after pediatric cardiac surgery

Background:u2002 Early extubation after cardiac surgery in children is feasible; however, predictors of prolonged mechanical ventilation (MV) should be recognized as soon as possible.

Inflammation, adenoma and cancer: objective classification of colon biopsy specimens with gene expression signature.

Gene expression analysis of colon biopsies using high-density oligonucleotide microarrays can contribute to the understanding of local pathophysiological alterations and to functional classification of adenoma (15 samples), colorectal carcinomas (CRC) (15) and inflammatory bowel diseases (IBD) (14). Total RNA was extracted, amplified and biotinylated from frozen colonic biopsies. Genome-wide gene expression profile was evaluated by HGU133plus2 microarrays and verified by RT-PCR. We applied two independent methods for data normalization and used PAM for feature selection. Leave one-out stepwise discriminant analysis was performed. Top validated genes included collagenIVα1, lipocalin-2, calumenin, aquaporin-8 genes in CRC; CD44, met proto-oncogene, chemokine ligand-12, ADAM-like decysin-1 and ATP-binding casette-A8 genes in adenoma; and lipocalin-2, ubiquitin D and IFITM2 genes in IBD. Best differentiating markers between Ulcerative colitis and Crohns disease were cyclin-G2; tripartite motif-containing-31; TNFR shedding aminopeptidase regulator-1 and AMICA. The discriminant analysis was able to classify the samples in overall 96.2% using 7 discriminatory genes (indoleamine-pyrrole-2,3-dioxygenase, ectodermal-neural cortex, TIMP3, fucosyltransferase-8, collectin sub-family member 12, carboxypeptidase D, and transglutaminase-2). Using routine biopsy samples we successfully performed whole genomic microarray analysis to identify discriminative signatures. Our results provide further insight into the pathophysiological background of colonic diseases. The results set up data warehouse which can be mined further.

Clinical diagnoses, characteristics of risk behaviour, differences between suicidal and non-suicidal subgroups of Hungarian adolescent outpatients practising self-injury

ObjectiveSelf-injury (SI), self-injurious behaviour (SIB), including suicidal or non-suicidal self-injury (SSI, NSSI) represent an increasing problem among teenagers amounting to a 6–17% prevalence rate in adolescence, yet little data exists on detailed characteristics and associated factors of SI reaching clinical severity. There is also a scarcity of data distinguishing between suicidal and non-suicidal subsamples of self-injuring patients, i.e. showing which predictors contribute to develop self-injurious behaviour with a previous suicidal history (SSI).MethodClinical diagnoses and characteristics of risk behaviour were examined in a crosssectional design in suicidal and non-suicidal subgroups of Hungarian adolescent outpatients practising self-injurious behaviour. From the total pool of 708 new patients consecutively referred with various psychiatric problems in five regional child psychiatric centres in Western-Hungary over an 18-month period, 105 adolescent outpatients suffering from self-injurious behaviour participated in the study (28 males and 77 females aged from 14 to 18xa0years, mean age 15.97, SD 1.05). The Ottawa/Queen’s self-injury questionnaire (OSI) was used to measure the characteristics of risk behaviour, while the comorbid clinical diagnoses were confirmed by the M.I.N.I. Plus International Neuropsychiatric Interview. Descriptive statistics presented the frequencies of the characteristics of SI, bilateral comparisons were used to reveal relevant items to differentiate between sex, duration of practice and SSI versus NSSI and logistic regression was performed to identify significant predictors of suicidal subtype of self-injuring practice.ResultsA total of 60% of the clinical SI population experienced a present or past episode of major depression. The motivation of patients to resist impulses and to discontinue malpractice was low. Cutting and scratching was the most common self-injuring methods. Two-thirds of the sample practised the impulsive type of SI, while 30% practised premeditated SI having an incubation time from 30xa0min to days and weeks before carrying out SI. Although duration of SI did not distinguish the sample in important aspects, girls and boys differed in several aspects of SI practice. SSI adolescents differed from their NSSI peers in a number of important characteristics including the frequency of actions, injured areas, methods, specific stresses and motivations. SSI adolescents were more likely to favour cutting of the lower leg and drug overdose as modes of SI. SSI adolescents were more likely to report addictive features than their peers with no suicidal motivation. From the aspect of self-injurious practice, logistic regression analysis found only two significant predictors for the combined pathology.

Malignancies after renal transplantation during 33 years at a single center.

This study provides an analysis of incidence and characteristics of malignant tumors of 2535 patients who underwent renal transplantation between 1973 and 2007 at the Transplantation Center in Budapest. One hundred ninety-three malignant diseases were found in 188 patients (7.6%). The incidence of thyroid-, renal-hepatic-, skin- and gastric cancers as well as of Kaposi sarcoma and lymphomas increased in our transplant patient cohort compared to the figures of the general population based on the data of our Cancer Registry. On the other hand, colorectal-, oralprostate and lung cancers were underrepresented in our patient cohort. The mean time of diagnosis of malignancies following kidney transplantation was 58.5± 44.8 months. One fifth of the tumors were detected within the first year. Patients with malignancies were distributed into four groups based on the immunosuppressive regimen: group I (8.5%), azathioprine + prednisone; group II (59.0%), cyclosporine + prednisone; group III (26.6%), cyclosporine + mycophenolate mofetil + prednisone; group IV (5.9%), tacrolimus + mycophenolate mofetil + prednisone. The mean age of patients was 47.3, 53.5, 55.5 and 58.1 years in group I, II, III and IV, respectively. Oncologic and immunosuppressive therapy was decided individually. Immunosuppression was switched to rapamycin-containing regimens in 63 cases. We lost 92 patients (48.9%) with a mean survival time of 25.8± 39.4 months. Cumulative 1- and 5-year survivals were 69.5% and 52%, respectively. The increasing number of cancers seen early after transplantation and the increased risk of developing a cancer due to the older age of recipients draw attention to the importance of regular oncologic screening in patients on the waiting list and after transplantation.

Helicobacter pylori and Antrum Erosion‐Specific Gene Expression Patterns: The Discriminative Role of CXCL13 and VCAM1 Transcripts

Background and Aims:u2002 Chronic Helicobacter pylori infection affects approximately half of the world, leads to chronic gastritis and peptic ulceration, and is linked to gastric carcinoma. Our aims were to compare the gene expression profile (GEP) of H. pylori‐positive and H. pylori‐negative gastric erosions and adjacent mucosa to explain the possible role and response to H. pylori infection and to get erosion‐related mRNA expression patterns.

The effect of estrogens on superoxide anion generation by human neutrophil granulocytes: Possible consequences of the antioxidant defense

The present study aimed to test whether, beyond the known antioxidant effect of estradiol, such a property is also possessed by estrone and estriol. For this purpose, an in vitro investigation of the effect of estrone and estriol on superoxide anion production by human neutrophil granulocytes was carried out. Blood samples were obtained from healthy volunteers and neutrophil granulocytes were separated for measurement of superoxide anion generation after incubation with estrone, estriol (10−7, 10−6 and 10−5 M) and 17β-estradiol (10−7 M). Superoxide anion production of isolated neutrophil granulocytes was quantified by photometry and using the reduction of ferricytochrome-C. When adding estrone and estriol to neutrophil granulocyte suspensions, the production of superoxide anion fell (10−5 M: 84.17 ± 3.14% and 88.77 ± 1.98% of control production, p < 0.01 and p < 0.05, respectively). Estradiol produced an antioxidant effect at lower concentration (10−7 M: 72.91 ± 7.94% of control production, p < 0.001). The weak estrogens estrone and estriol, similarly to estradiol, are also able to reduce the superoxide anion release in our experimental model. This may have importance in the antioxidant defense of biological systems.

Prognostic Factors and Survival of Renal Clear Cell Carcinoma Patients with Bone Metastases

In our retrospective study the pathological and clinical factors, influencing the survival of 65 renal clear cell carcinoma patients operated for bone metastasis between 1990 and 2008 were examined. Based on Kaplan-Meier curves age, gender, clinical symptoms, pathological fracture, progression to the soft tissues, localization and size of the metastasis, whether the occurrence of multiplex metastases is multiorganic or only located to the skeletal system and the stage and grade of primary renal cancer did not influence the survival. The survival significantly improved if the bone metastases were solitary, low Fuhrman grade, late onset; and radical surgery was performed. Based on Cox regression analysis, survival after bone surgery was influenced by the multiplicity and grade of metastasis and by the radicality of the surgery, whereas survival after nephrectomy was significantly influenced by onset time and grade of metastasis. When the solitary metastasis was radically removed, 75.0% of the patients survived the first, and 35.5% the fifth postoperative year. If the metastasis was multiple or the surgery was not radical, no patient survived the fifth year. This is the first report on the prognostic significance of the Fuhrman grade of bone metastasis of renal cell cancer. While the Fuhrman grade of the primary tumour did not influence the survival, the lower grade of metastasis was associated with a significant longer survival. Therefore in cases of solitary, operable, late onset metastases with low Fuhrman grade radical removal is recommended, since this way in 35.5% of cases 5xa0year survival can be expected.

Novelty seeking: Difference between suicidal and non-suicidal Hungarian adolescent outpatients suffering from depression

AIMSnThe aim of the study was to explore possible differences in temperament and character dimensions between two focused clinical adolescent groups, namely suicidal (1) and non-suicidal (2) depressive adolescent outpatients.nnnSAMPLEnFrom a multisite Western-Hungarian sample of consecutively referred 14-18 year old new psychiatric outpatients, two groups of adolescent outpatients were compared: Group I, n=39 (9 boys, 30 girls) Suicidal-depressives and Group II, n=51 (12 boys, 39 girls) Non-suicidal depressives. Other diagnoses as major depression and/or dysthymia and suicidal behaviour were excluded including bipolar disorder, and the groups were matched by age, sex and family status. Assessment methods used were the Hungarian standard versions of the Mini International Neuropsychiatric Interview (M.I.N.I Plus), and the Junior Temperament (Cloninger) Character Inventory (JTCI).nnnRESULTSnThe only difference between the groups was that suicidal-depressive adolescents exhibited significantly higher novelty-seeking compared to pure depressive clinical peers.nnnCONCLUSIONSnMore research and the use of closer clinical personality typologies are warranted to explore the fine differences between these two clinical groups of depressive adolescent patients that are similar to each other in many aspects: suicidal and non-suicidal youngsters.

Apolipoprotein E and Complement C3 Polymorphism and Their Role in the Response to Gemfibrozil and Low Fat Low Cholesterol Therapy

Three different allelic variants of apolipoprotein E determine, in concert with other gene products, the levels of plasma lipoproteins. Recently, cleavage products of the complement C3 molecule have also been implicated in determining plasma triacylglycerol concentrations. This study presents data of an ongoing study to dissect the role of the apolipoprotein E gene locus in the response to low fat/low cholesterol diet combined with gemfibrozil treatment. In addition, for the first time, the significance of C3 allelic variants to such hypolipidaemic therapy response was analysed. To this end data from 81 obese hyperlipoproteinaemic patients (Fredrickson type II/A and B and type IV and V) confirmed the usefulness of the combined gemfibrozil/diet treatment and unveiled apolipoprotein E allele group specific therapy responses. The mean changes of lipid properties due to combined treatment was 15% for total cholesterol, 48% for triacylglycerols and 28% for atherogenic index. Division into hyperlipidaemia types according to Fredrickson and subgrouping into E2, E3 and E4 groups (apolipoprotein E2/2 and 2/3, apolipoprotein E3/3 and apolipoprotein E4/2 and 4/3 phenotype groups respectively) exposed pronounced differences from these mean changes, suggesting substantial influence of apolipoprotein E variants on this therapy. We observed triacylglycerol reductions of from 17% in type IIA-apolipoprotein E3 group patients up to 78% in the type IV and V-apolipoprotein E2 group. Thus it might be concluded the apolipoprotein E genotyping aides therapy success prediction. Although, low sample number in some subgroups obscures significance in this pilot study, significant therapy success emerges for the E3 and E4 group in type IV and V hyperlipidaemia and type IIB-apolipoprotein E3 homozygous patients can be predicted to respond better than apolipoprotein E2 carriers. Finally, we present evidence that positive changes of lipid properties are also determined by the fast complement C3 allel (C3-F). Patients with complement factor C3-FS pattern respond better to treatment than patients with C3-SS configuration. In summary these data endorse the genotyping of apolipoprotein E alleles to predict maximal success of fibrate treatment. In addition they argue strongly for further assessment of the involvement of complement C3 allelic variations in lipid homeostasis.