Lege Artis Medicinae

[Documented Agony – Pictures of Ferdinand Hodler]

NÉMETH István

NOVEMBER 10, 2008

Lege Artis Medicinae - 2008;18(11)

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Lege Artis Medicinae

[INCRETIN MIMETICS AND INCRETIN ENHANCERS: NEW THERAPEUTIC TOOLS IN THE TREATMENT OF PATIENTS WITH TYPE 2 DIABETES MELLITUS]

JERMENDY György

[Incretins are hormone-like peptides secreted by specific cells of the small intestine mucosa. Their two main representatives are the glucagon-likepeptide- 1 (GLP-1 and the glucose-dependent insulinotropic peptide, (GIP) the release of which is stimulated by meals. The main action of incretins is to enhance insulin secretion following meals. They are rapidly metabolized in the circulation by the enzyme dipeptidyl peptidase IV (DPP-IV). Patients with type 2 diabetes have markedly impaired incretin-mediated insulin secretion mainly due to decreased secretion of GLP-1. Research in the last years has opened up a new therapeutic option to treat patients with type 2 diabetes. Continuous intravenous use of GLP-1 cannot be widely used in clinical practice; however, GLP-1-mimetics that have an agonist effect on the receptors but are resistant to degradation by DPP-IV have been developed. The GLP-1 agonist xenatide, due to its incretin mimetic property, stimulates postprandial insulin secretion, suppresses glucagon secretion, delays gastric emptying and increases sense of fullness thus resulting in weight reduction. In experimental settings, exenatide has a documented beta-cell protecting property. Its disadvantages include the fact that it can only be administered subcutaneously and that it has a well characterized side effect profile. On the contrary, the DPP-IV inhibiting incretin enhancers (sitagliptin, vildagliptin) can be used orally and are well tolerated. Exenatide, sitagliptin and vildagliptin are the first representatives of incretin mimetics and incretin enhancers. Sitagliptin has been available in Hungary since August, 2008. Their effect to reduce blood glucose and HbA1c should mainly be exploited in combination therapy, preferably with metformin. The availability of incretin mimetics and incretin enhancers will offer new therapeutic options for treating patients with type 2 diabetes. Nevertheless, the final assessment of these new drugs will require long-term experience in the clinical practice.]

Lege Artis Medicinae

[Selective Memory?]

KAHÁN Zsuzsanna

Lege Artis Medicinae

[CHANGING STRATEGY IN THE LONG-TERM TREATMENT OF OVARIAN CANCER - ON THE IMPORTANCE OF PLATINUM-FREE INTERVAL]

HERNÁDI Zoltán

[It was during the last 15 years when justified by clinical studies the sensitivity/resistance to anticancer chemotherapy was included in the setting of the prognostic factors of the ovarian cancer, while demonstrating a stronger correlation with the outcome than those factors known before. Remission and duration of remission after first-line chemotherapy are the two important components of sensitivity and their combinations measure its grade in a semi-quantitative manner. The chemotherapy sensitivity/resistance approach is based on the observations on ovarian cancer patients treated with platinum based chemotherapy. This agent in repeated adminstrations during the whole course of the disease is still a decisive component of the ovarian cancer chemotherapy. As a consequence there is always “a platinum-free interval”. The prolongation of this platinum-free interval with non-platinum chemotherapy has the potencial of increasing the remission and survival by platinum reinduction administered in the third-line of chemotherapy. In spite of the facts mentioned above, there are centers which prefer the early re-administration of taxan/platinum combination to the prolongation of platinum- free interval and expose their patients to an elevated risk of cumulative, in the first-line non-haematological toxicity.The neurotoxicity can deteriorate the quality of life and the parenchymal laesion of kidneys can prevent further chemotherpy.]

Lege Artis Medicinae

[A Change in Attitude in Rheumatology – The Textbook of Rheumatology Edited by: Gyula Poór]

GAÁL János

Lege Artis Medicinae

[LOW GRADE FIBROMYXOID SARCOMA OF THE TEMPORALIS MUSCLE - A CASE REPORT]

KOVÁCS S. Krisztián, FAN Rong, MICHALS Edward A., DÓSA Sándor, VILLANO John L., VÁLYI-NAGY Tibor

[INTRODUCTION - Low grade fibromyxoid sarcomas (LGFMS) in most cases arise in the skeletal muscle primarily in young to middleaged adults. Males are affected more commonly than females. The tumour tipically arises in the lower extremities, particularly the thigh. Hyalinizing spindle cell tumor with giant rosettes is a variant of LGFMS that demonstrates a significant overlap with classic LGFMS regarding patient age and tumor location, histological appearance and metastatic potential. CASE REPORT - A 76 year-old male presented with a ten-year history of a painless, slowgrowing, hard consistency, left-sided temporal mass. The radiological differential diagnosis included liposarcoma, malignant fibrous histiocytoma and rhabdomyosarcoma. Histopathological examination revealed low grade fibromyxoid sarcoma featuring low cellularity, collagenized areas and alternating myxoid areas, and a focal whorling pattern of tumour cells that were immunoreactive for vimentin, but were negative for S100, CD34, muscle specific actin, desmin and cytokeratin (AE1/AE3). CONCLUSIONS - To the best of our knowledge, this is the first report of low grade fibromyxoid sarcoma involving the temporalis muscle.]

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Clinical Neuroscience

[Advanced Parkinson’s disease characteristics in clinical practice: Results from the OBSERVE-PD study and sub-analysis of the Hungarian data]

TAKÁTS Annamária, ASCHERMANN Zsuzsanna, VÉCSEI László, KLIVÉNYI Péter, DÉZSI Lívia, ZÁDORI Dénes, VALIKOVICS Attila, VARANNAI Lajos, ONUK Koray, KINCZEL Beatrix, KOVÁCS Norbert

[The majority of patients with advanced Parkinson’s disease are treated at specialized movement disorder centers. Currently, there is no clear consensus on how to define the stages of Parkinson’s disease; the proportion of Parkinson’s patients with advanced Parkinson’s disease, the referral process, and the clinical features used to characterize advanced Parkinson’s disease are not well delineated. The primary objective of this observational study was to evaluate the proportion of Parkinson’s patients identified as advanced patients according to physician’s judgment in all participating movement disorder centers across the study. Here we evaluate the Hungarian subset of the participating patients. The study was conducted in a cross-sectional, non-interventional, multi-country, multi-center format in 18 countries. Data were collected during a single patient visit. Current Parkinson’s disease status was assessed with Unified Parkinson’s Disease Rating Scale (UPDRS) parts II, III, IV, and V (modified Hoehn and Yahr staging). Non-motor symptoms were assessed using the PD Non-motor Symptoms Scale (NMSS); quality of life was assessed with the PD 8-item Quality-of-Life Questionnaire (PDQ-8). Parkinson’s disease was classified as advanced versus non-advanced based on physician assessment and on questions developed by the Delphi method. Overall, 2627 patients with Parkinson’s disease from 126 sites were documented. In Hungary, 100 patients with Parkinson’s disease were documented in four movement disorder centers, and, according to the physician assessment, 50% of these patients had advanced Parkinson’s disease. Their mean scores showed significantly higher impairment in those with, versus without advanced Parkinson’s disease: UPDRS II (14.1 vs. 9.2), UPDRS IV Q32 (1.1 vs. 0.0) and Q39 (1.1 vs. 0.5), UPDRS V (2.8 vs. 2.0) and PDQ-8 (29.1 vs. 18.9). Physicians in Hungarian movement disorder centers assessed that half of the Parkinson’s patients had advanced disease, with worse motor and non-motor symptom severity and worse QoL than those without advanced Parkinson’s disease. Despite being classified as eligible for invasive/device-aided treatment, that treatment had not been initiated in 25% of these patients.]

Hypertension and nephrology

[Experience with mycophenolate mofetil containing immunosuppressive regimen in de novo kidney transplant recipients (ORANGE study).]

WAGNER László, KALMÁR-NAGY Károly, TORONYI Éva, TÖRÖK Szilárd, PATONAI Attila, SZAKÁLY Péter

[Mycophenolate mofetil (MMF) has been used as an immunosuppressive agent in renal transplant recipients for more than two decades. The aim of the ORANGE study was to collect data with respect to the efficacy and safety of MMF containing immunosuppressive regimens during standard nephrology care in Hungarian clinical centres. Efficacy of the therapy was primarily evaluated via moni - toring of renal function based on glomerular filtration rate (GFR) values calculated on the basis of the MDRD-175 formula. A total number of 128 patients were en rolled in two clinical centres within the frames of an open-label, non-interventional study. During the course of the study, mean GFR values showed stable renal function between the 1st month (53.5±33.4 ml/min/1,73 m2) and the 12th month (58±16.3 ml/min/1,73 m2). Acute graft rejection occurred in 21 patients during the first month, further, 1-1 rejection was documented in the remaining period between 2-6 and 6-12 months after renal transplantation, respectively. The graft survival was 100% 1 month after renal transplantation, while this ratio was calculated to be 98.4% after 12 months.]

Clinical Neuroscience

[Efficacy of deep brain stimulation in our patients with Parkinson’s disease]

GERTRÚD Tamás, TAKÁTS Annamária, RADICS Péter, RÓZSA Ildikó, CSIBRI Éva, RUDAS Gábor, GOLOPENCZA Péter, ENTZ László, FABÓ Dániel, ERÕSS Loránd

[Background and purposes - In advanced Parkinson’s disease, medically refractory motor fluctuation or medically resistant tremor considerably affects quality of life. However, these symptoms can be mostly successfully treated by deep brain stimulation. We analyzed the efficacy of bilateral subthalamic stimulation in our patients with Parkinson’s disease. Methods - We assessed the clinical data of ten patients who have been treated in the Department of Neurology, Semmelweis University and have been operated in the National Institute of Neurosciences between 2008 and 2011. The Hoehn-Yahr scale score, the Unified Parkinson’s Disease Rating Scale score and the Parkinson’s Disease Questionnaire 39, as well as the dose of antiparkinson medication were documented prior to and one year after surgery. Results - Patient condition improved according to the Hoehn-Yahr scale, approximately by two stages. The dose of antiparkinson medication could be reduced by 63.4% (p=0.005) post operation. Unified Parkinson’s Disease Rating Scale scores decreased by 70.9% (p=0.005). 12 hours after medication withdrawal, execution of daily activity improved by 57.1% (p<0.01) and motor functions developed by 79.1% (p<0.01). Duration of dyskinesias decreased by 62.5% (p=0.018), duration of akinesia diminished by 87.5% (p=0.005). Quality of life rose by 41.6% (p<0.01). Neuropsychological tests detected improvement in verbal memory. Conclusion - With deep brain stimulation, the dosage of antiparkinson medication could be significantly reduced, with considerable improvements in motor function and quality of life. Although the number of patients is still low, good results have been established by careful patient selection, precise neurosurgical procedure and by appropriate programming and patient care.]

Hypertension and nephrology

[The effect of antihypertensive drugs on central blood pressure]

PÁLL Dénes, KOMONYI Éva, LENGYEL Szabolcs, PARAGH György, KATONA Éva

[It is well known, that there is a difference between peripheral and central systolic and pulse pressure. As the pressure wave travels distally from the heart, there is a significant increase, which is called pressure amplification. Central blood pressure can be measured easily and non-invasively, and the result shows a positive correlation with cardiovascular end-points. Several antihypertensive drugs can differently decrease central and peripheral blood pressure. The effect of diuretics on central systolic and pulse pressure is neutral or negative. While traditional β-blockers (e.g. atenolol) have a definitive negative effect, nebivolol shows a positive one. The calcium antagonists tend to have a favorable effect, while the clear beneficial effect of the angiotensin converting enzime inhibitors is well documented. There are only few data on angiotensin receptor blockers, however, the results seem to be promising.]

Lege Artis Medicinae

[The Loves of Abe Moyra – Pictures of a Posthumous Exhibition ]

NÉMETH István