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Hypertension and nephrology

SEPTEMBER 12, 2018

[Hyperuricemia and cardiovascular risk: new treat to target principle in focus]

ALFÖLDI Sándor

[Hyperuricemia is frequent and its prevalence is increasing as it correlates with obesity and metabolic syndrome by several different mechanisms. Furthermore, recently several data are available for the cardiovascular and renal protective effect of allopurinol in the treatment of hyperuricemia and gout. The new European EULAR guidelines suggested treat to target principle in urat lowering therapy of gout. The uric acid target is below 360 µmol/l in mild to moderate gout. The guidelines unequivocally stated, that allopurinol is the first line uric acid lowering drug. Allopurinol treatment should be started immediately at the diagnosis and should be continued lifelong.]

Hypertension and nephrology

DECEMBER 10, 2017

[Gout, hyperuricaemia and cardiovascular risk - Effects of allopurinol]

KÉKES Ede

[Hyperuricemia has an increasing clinical relevance due to its pathomechanism and its presence and adverse effects on cardiovascular, metabolic and renal diseases today. Its presence is a world phenomenon and in our country, we have seen increasing incidence rates during the screening surveys in recent years. Convincing evidence suggests that the high uric acid values in cardiovascular and renal diseases is an independent risk factor for CV mortality and their clinical manifestations. Experimental and clinical evidences indicates that in addition to gout, all high uric acid levels should be considered to initiate the XO inhibitor allopurinol treatment. Recently, in some diseases, in the treatment of the underlying disease (especially elderly hypertension, ischemic heart disease, chronic heart failure, chronic kidney failure) is also considered as an adjunct therapy.]

Hypertension and nephrology

SEPTEMBER 10, 2017

[Novelties in the treatment of hyperuricemia and gout: treat to target principle in focus]

ALFÖLDI Sándor

[The prevalence of hyperuricemia is is increasing as it is related by several different mechanisms to obesity and metabolic syndrome spreading epidemically worldwide. Several beneficial cardiovascular and renorotective effects of the xanthin-oxydase inhibitor allopurinol, administered in the treatment of hyperuricemia and gout, have been found out recently. The newest European EULAR guidelines for the treatment of gout recommended the treat-to target principle. A target value of ≤360 umol/l in patients with mild-to moderate gout and ≤300 umol/l in more serious cases has been suggested. The guidelines took an unequivocal commitment, that allopurinol is the first-line treatment. The hypouricemic therapy should be started as soon as possible after the diagnosis and should be continued lifelong in patients with gout.]

Clinical Neuroscience

NOVEMBER 30, 2013

[Assessment of the role of multidrug resistance-associated proteins in MPTP neurotoxicity in mice]

PLANGÁR Imola, ZÁDORI Dénes, SZALÁRDY Levente, VÉCSEI László, KLIVÉNYI Péter

[Goals - The available scientific data indicate that the pathomechanism of Parkinson's disease (PD) involves the accumulation of endogenous and exogenous toxic substances. The disruption of the proper functioning of certain transporters in the blood-brain barrier and in the blood-cerebrospinal fluid barrier in PD would accompany to that accumulation. Although there is an emerging role of the dysfunction of multidrug resistance-associated proteins (MRPs), members of ATP-binding cassette (ABC) transporter superfamily, in neurodegenerative disorders, there is only a few available data as regards PD. So the aim of our study was the assessment of the role of certain MRPs (1,2,4 and 5) in neurotoxicity induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Methods - Following the intraperitoneal administration of silymarin (with MRP1, 2, 4 and 5 inhibitory effects), naringenin (with MRP1, 2 and 4 stimulatory effects), sulfinpyrazone (with MRP1, 4 and 5 inhibitory and MRP2 stimulatory effects) and allopurinol (with MRP4 stimulatory effect) in doses of 100 mg/kg, 100 mg/kg, 100 mg/kg and 60 mg/kg, respectively, for one week before and after the administration of MPTP in C57B/6 mice in acute dosing regimen, the striatal concentrations of dopamine, 3,4-dihydroxyphenylacetic acid and homovanillic acid has been measured using high-performance liquid chromatography. Results - Although the results of these experiments showed that neither of these substances exerted significant influence on MPTP-induced striatal depletion of dopamine and its metabolites, naringenin exerted a slight prevention of dopamine decrease, while allopurinol considerably enhanced the MPTP-induced lethality in mice. The explanation of these findings would be that the stimulation of MRP1- and MRP2-mediated transport of glutathione conjugates of toxic substances may have slight beneficial effects, while stimulation of MRP4-mediated efflux of brain urate, which has an important antioxidant potency, may worsen the effects of oxidative stress.]

LAM KID

MAY 30, 2013

[Modern medical and dietary treatment of gout in light of the new American guidelines]

SZEKANECZ Zoltán

[After several decades of “silence”, in the past few years a number of new data and treatment options have become available regarding the management of hyperuricaemy and gout. We also have a better understanding of the immunpathogenic processes of the disease, resulting in new medicines, as well as dietary and lifestyle modifications. Finally, in 2012, the American College of Rheumatology (ACR) has published new guidelines, which provide detailed algorhythms for each stage of gout and for special clinical situations. Although some aspects of clinical practice in Europe are different from that in the US, the new guidelines are applicable - with the necessary adaptations - in Hungary for the efficient treatment of gout and its comorbidities.]