Lege Artis Medicinae

[PRIMARY TUBULOINTERSTITIAL NEPHRITIS]

FERENCZI Sándor

FEBRUARY 21, 2004

Lege Artis Medicinae - 2004;14(02)

[Primary tubulointerstitial nephritis is characterised by an inflammatory infiltrate of tubulointerstitial space. The infiltrate consists of T and B lymphocytes, monocytes, macrophages, neutrophyl and eosinophyl granulocytes in varying degree. It is associated with interstitial oedema and different level of tubular damage. The disease exists in acute and chronic form. The main causes of this condition are: drugs, infection, systemic diseases, malignancy and in some cases the disease is idiopathic. The pathogenesis in most cases is immune-mediated. The secondary form of tubulointerstitial nephritis can occur in primary glomerular and vascular disease and is characterised by tubulointerstitial fibrosis and tubulus atrophy. The morphological alterations are major determinants of the progression of chronic renal disease. In both forms of tubulointerstitial nephritis the development of renal insufficiency is often observed.]

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Lege Artis Medicinae

[THE HISTORY OF FLUOROQUINOLONES]

LUDWIG Endre

[During the 40 year history of quinolones, from the first compounds (nalidixic acid, oxolinic acid, norfloxacin) suitable only for the treatment of mild urinary tract infections, an important group of antimicrobials was developed that can be used for the treatment of serious Gramnegative (ciprofloxacin, ofloxacin) and Grampositive (levofloxacin, moxifloxacin) infections. With the changes in the antimicrobial spectrum of the new derivatives it seems, that the clinical indications of the mainly anti-Gram-positive and the mainly anti-Gram-negative fluoroquinolones can be separated. We also learned the characteristics of their antibacterial activity that makes the optimal administration possible assuring the maximum clinical efficacy and the minimal development of bacterial resistance. The activity of fluoroquinolones can also be compromised by bacterial resistance so to preserve their clinical value it is important to follow the above mentioned principles in their use.]

Lege Artis Medicinae

[POSTMENOPAUSAL HYPERTENSION]

SZÉKÁCS Béla

[Women with normal cycles on the average have lower blood pressure than age matched men. From the fifth decade of life increasing average blood pressure values of females reach or even exceed the levels of males. The frequency of hypertension among women in menopause and postmenopause is 3-4 times greater than in premenopause. This great difference can not be explained by the age dependent increase in blood pressure. There are several pathological components in the background of the elevation of blood pressure following the reduction and failure of female sex hormone production. Among these components are lifestyle changes, reduced physical activity, growing body weight, increased sympathetic activity, higher RAS (renin-angiotensin system) influence and increased salt dependence of blood pressure seem to be the dominant factors. Contrary to earlier suggestions recent clinical findings have proved that estrogen or combined hormone replacement therapy did not increase but rather slightly reduced the blood pressure in menopausal and postmenopausal hypertensive women. Therefore, hypertension itself should not be the contraindication against carefully managed hormone replacement therapy. The therapy is frequently used for preventing severe osteoporosis in spite of the disappointing cardiovascular results of the WHI and HERS trials. In the Joint National Committee 7 there are no special recommendations which would strictly prefer one or another antihypertensive agents in the pharmacological treatment of postmenopausal hypertension. However doctors are assisted in their individual therapeutical decisions by certain clinical and experimental findings which refer to higher sympathic activity, enhanced RAS influence and increased salt dependency in the pathomechanism of postmenopausal hypertension.]

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Lege Artis Medicinae

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[The relentless increase of patients with kidney failure requiring renal replacement therapy has been documented world-wide. Recently, diabetic renal diseases has become the major cause of end-stage renal disease in the United States and in western Europe and is forecasted to become the most frequent cause of end-stage renal disease in Hungary. The most common renal lesion in type 1 as well as in type 2 diabetes is diabetic nephropathy. However, in the last few years numerous studies have demonstrated that there is a difference between patients with type 1 and those with type 2 diabetes in the expression and frequency of their renal disease. In type 1 diabetes a histological examination should only be made when a patient has features atypical of diabetic nephropathy and the indications of renal biopsy are well known. At the same time there is no agreement on renal biopsy indications in type 2 diabetes. In this review, we will summarise the characteristic features of diabetic nephropathy and other kidney alterations in the diabetic patient. Furthermore, we will raise the question of the renal biopsy indications and the more extensive use of the renal biopsy in type 2 diabetic patients for more effective prevention and treatment strategies.]

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Lege Artis Medicinae

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