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  • Essential hypertension  (9)
  • Cushing's syndrome  (4)
  • Springer  (13)
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  • Springer  (13)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 62 (1984), S. 855-858 
    ISSN: 1432-1440
    Keywords: Cushing's syndrome ; Pathogenesis of hypertension ; Renin angiotensin system ; Captopril
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To analyse the role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome ten patients with hypercorticism (five with pituitary hypothalamic dysfunction, three with adrenal adenomas and two with adrenal carcinomas) received a single oral dose of 25 mg captopril. Mean arterial pressure was then determined at short intervals over periods of up to 240 min. Plasma renin activity (PRA) was measured immediately before the administration of captopril. Eleven patients with severe essential hypertension, who showed a comparable distribution of basal PRA values, served as a control. Patients with elevated basal PRA values (〉3 ng/ml·3 h) showed, both in the subgroup of cases with essential hypertension and in that with Cushing's syndrome, a statistically significant fall (P〈0.05−P〈0.001) in mean arterial pressure, the decrease being slightly more pronounced in essential hypertensives. On the other hand patients with normal PRA values (≦3 ng/ml·3 h) exhibited only a minor fall in mean arterial pressure reaching statistical significance (P〈0.05) only after 60 min (essential hypertension) and 180 min (Cushing's syndrome), respectively. Our results document that in patients with Cushing's syndrome the effect of captopril seems to be determined by the activity of the renin angiotensin system. Thus, in a substantial number of patients with hypercorticism, the renin angiotensin system may be an important factor in the pathogenesis of hypertension, whereas in patients with low PRA values other factors like oversecretion of mineralocorticoids may be responsible for the observed blood pressure increases.
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  • 2
    ISSN: 1432-1440
    Keywords: Captopril ; Kidney function ; Essential hypertension ; Renovascular hypertension ; Renal parenchymatous hypertension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To study long-term effects of captopril on renal function in patients with various forms of severe hypertension, serum creatinine values were monitored in 76 patients under captopril therapy over a period of up to 3 years. Three different groups were formed: (1) patients with essential hypertension (n=37); (2) patients with renovascular hypertension (n=20); (3) patients with renal parenchymatous hypertension (n=19). In each of the three groups reduction in blood pressure was accompanied by increases in serum creatinine. However, both changes were more pronounced in patients with renovascular hypertension. In this group only the rise in creatinine was statistically significant and showed a slight progression with duration of captopril treatment. Group specific analysis revealed that the increase was smaller in patients with unilateral (n=16) renovascular disease than in those with bilateral (n=4) involvement, but in the former it was still significantly higher than in patients with essential or renal parenchymatous hypertension. Separation of patients according to the underlying disease of renovascular hypertension showed that renal function deteriorated less in patients with arteriosclerotic origin (n=10) than in those with fibromuscular dysplasia (n=8). Statistical evaluation of subjects with renovascular and essential hypertension still revealed significant differences in creatinine when the patients with initial plasma renin activity (PRA) below and above 6 ng/ml·3 h were compared separately. A significant correlation (r=0.73;P〈0.05) between blood pressure reduction and creatinine changes was obtained only for patients with renovascular hypertension. Finally, in all three groups of patients creatinine changes were statistically independent from daily dosages of captopril. From these data we conclude that sustained impairment of kidney function by captopril is mainly restricted to patients with renovascular hypertension and possibly results from the combined effects of low renal perfusion pressure and interference with intrarenal regulation of glomerular filtration rate by a postulated angiotensin-II-mediated mechanism.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 62 (1984), S. 925-930 
    ISSN: 1432-1440
    Keywords: Transdermal therapeutic systems (TTS) ; Clonidine ; Essential hypertension ; Skin allergy ; Clonidine allergy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Skin patches of a clonidine transdermal therapeutic system (clonidine-TTS) with a constant release rate of either 0.1 or 0.2 mg clonidine/24 h continuously over 7 days were used in 32 essential hypertensives. These self-adhesive drug delivery systems (3.5 cm2), which were affixed to the upper outer arm, were changed by the patients at weekly intervals. During a mean observation period of 7 months (range 1–19 months) transdermal clonidine reduced the blood pressure from 162±15/107±5 mmHg to normal values (diastolic ≦95 mmHg) in 63% of our patients. However, chronic use of clonidine-TTS was accompanied by a high frequency of contact dermatitis (type IV allergy) in nearly half of our patients (n=15, 47%). In 11 of these 15 patients transdermal clonidine administration had to be stopped because of intolerable local skin reactions (pruritus, erythema, vesiculation, and/or infiltration). Subsequent patch testing with all components of clonidine-TTS was performed in eight cases. Whereas in seven cases an allergic contact dermatitis to clonidine was found, only one patient showed an allergy to another component of clonidine-TTS (polyisobutylene). We conclude that this strikingly high incidence of local allergic skin reactions limits the use of clonidine-TTS in essential hypertension.
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  • 4
    ISSN: 1432-1440
    Keywords: Aldosteron ; Renin-Angiotensin ; Essentielle Hypertonie ; Aldosterone ; Renin-angiotensin ; Essential hypertension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In essential hypertension mean basal (supine) and stimulated plasma renin activity (2 h upright posture +40 mg furosemide intraveneously) decreased progressively with age. No significant differences were observed in renin levels between male and female patients. With increasing age mean basal (supine) plasma aldosterone remained almost unchanged in females, whereas in males a slight increase was found. However, in the comparable age-groups no significant sexrelated differences were obtained. In female patients changes in mean stimulated plasma aldosterone with increasing age paralleled those of plasma renin activity, whereas in males this relationship was less obvious: only a slight age-related decline in stimulated aldosterone levels was observed and significantly lower plasma aldosterone concentrations in male than in female hypertensives of the younger age-groups (〈40 years) were found. The results indicate that in essential hypertension with increasing age dissociation between plasma aldosterone and plasma renin activity occurred. Furthermore, the described alterations in adrenal aldosterone release are more pronounced in male than in female patients.
    Notes: Zusammenfassung Bei Patienten mit essentieller Hypertonie fiel sowohl die basale als auch die stimulierte Plasmareninaktivität (2 h aktive Orthostase +40 mg Furosemid intravenös) mit zunehmendem Lebensalter kontinuierlich ab. Signifikante Unterschiede zwischen Männern und Frauen fanden sich nicht. Die mittlere basale Plasmaaldosteronkonzentration zeigte bei weiblichen Patienten keine altersabhängigen Veränderungen, während bei männlichen Patienten ein leichter Anstieg festgestellt werden konnte. Allerdings ergaben sich hier keine signifikanten Geschlechtsunterschiede in den vergleichbaren Altersgruppen. Die mittlere stimulierte Plasmaaldosteronkonzentration zeigte bei Frauen mit zunehmendem Alter ein der Plasmareninaktivität paralleles Verhalten, während dies bei Männern weit weniger ausgeprägt war; so fand sich bei männlichen Patienten nur ein geringer Abfall der mittleren stimulierten Plasmaaldosteronkonzentration mit dem Alter und die Aldosteronspiegel waren in den jüngeren Altersgruppen (〈40 Jahre) signifikant niedriger als bei weiblichen Patienten. Die Ergebnisse zeigen, daß bei Patienten mit essentieller Hypertonie mit zunehmendem Lebensalter eine Dissoziation zwischen Plasmaaldosteron und Plasmareninaktivität auftritt, wobei dieser Befund bei Männern deutlicher ausgeprägt ist als bei Frauen.
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  • 5
    ISSN: 1432-1440
    Keywords: Cushing-Syndrom ; Hypertonie ; Renin-Aktivität ; Aldosteronismus ; Cushing's syndrome ; Hypertension ; Renin activity ; Aldosteronism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary To investigate the role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome two patients with hypercorticism were infused with 20 mg saralasin (1-sar-8-alaangiotensin II) over a period of 30 minutes under constant blood pressure control. In addition, one patient with primary aldosteronism, an established form of mineralocorticoid hypertension, served as control. Neither in the two patients with Cushing's syndrome nor in the patient with primary aldosteronism could a blood pressure lowering effect of saralasin be observed. In the two patients with hypercorticism both renin activity and plasma aldosterone increased during saralasin infusion. The patient with primary aldosteronism only showed a weak increase in plasma aldosterone concentration. These results seem to exclude an important role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome. The unresponsiveness of elevated blood pressure to saralasin in the two patients with hypercorticism and in the patient with primary aldosteronism indirectly supports the assumption that in patients with Cushing's syndrome increased mineralocorticoid activity may be the main factor in the pathogenesis of hypertension.
    Notes: Zusammenfassung Um die Bedeutung des Renin-Angiotensin Systems in der Pathogenese der Hypertonie bei Cushing-Syndrom zu untersuchen, wurden bei 2 Patienten mit Hyperkortizismus 20 mg Saralasin (1-Sar-8-Ala-Angiotensin II) über einen Zeitraum von 30 min unter ständiger Blutdruckkontrolle infundiert. Zusätzlich diente ein Patient mit primärem Aldosteronismus, einer etablierten Form von Mineralokortikoidhochdruck, als Kontrolle. Weder bei den 2 Patienten mit Cushing-Syndrom noch bei dem Patienten mit primärem Aldosteronismus ließ sich ein blutdrucksenkender Effekt des Saralasins nachweisen. Die beiden Patienten mit Hyperkortizismus zeigten unter Saralasin sowohl einen Anstieg der Renin-Aktivität als auch des Plasmaaldosterons. Bei dem Patienten mit primärem Aldosteronismus ließ sich nur ein geringgradiger Anstieg der Plasmaaldosteronkonzentration nachweisen. Diese Ergebnisse sprechen gegen eine wichtige Rolle des Renin-Angiotensin Systems in der Pathogenese der Hypertonie bei Cushing-Syndrom. Die Unbeeinflußbarkeit des Hochdrucks durch Saralasin bei den beiden Patienten mit Hyperkortizismus und dem Patienten mit primärem Aldosteronismus stützen indirekt die Annahme, daß bei Patienten mit Cushing-Syndrom eine erhöhte Mineralokortikoidaktivität der Hauptfaktor in der Pathogenese der Hypertonie ist.
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  • 6
    ISSN: 1432-1440
    Keywords: Nifedipine gastrointestinal therapeutic system ; Essential hypertension ; Ambulatory blood pressure measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The nifedipine gastrointestinal therapeutic system (GITS) is a recently developed controlled-release formulation for once-a-day dosing. We evaluated the influence of morning versus evening administration of the drug in a randomized double-blind cross-over study including 15 essential hypertensives. Five patients had to be excluded from blood pressure analysis because of noncompliance (three cases) or intolerable side effects (two cases). To assess the exact duration of the antihypertensive efficacy noninvasive automatic ambulatory blood pressure monitoring was performed. After a placebo period patients were given 30 mg nifedipine GITS either at 1000 or 2200 hours. Twenty-four-hour systolic and diastolic blood pressure profiles documented a sustained antihypertensive effect of both nifedipine regimens throughout the whole period without affecting the circadian rhythm. Statistical analysis revealed no significant difference between morning and evening administration. Two patients stopped their medication because of intolerable side effects (fatigue and muscle cramps, respectively). Two more cases suffered from mild reversible headache which provoked no discontinuation of the drug. In conclusion our results document a sustained antihypertensive efficacy of 30 mg nifedipine GITS in patients with moderate essential hypertension. Time of administration has no impact on day- and nighttime blood pressure control.
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  • 7
    ISSN: 1432-1440
    Keywords: Cushing's syndrome ; Urinary corticosteroids ; diagnosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We evaluated the usefulness of the basal urinary 24-h excretion rates of free cortisol versus 17-hydroxycorticosteroids in the diagnosis of Cushing's syndrome. On an outpatient basis, both urinary free cortisol and 17-hydroxycorticosteroids levels were determined in 48 patients with Cushing's syndrome, as well as in 95 obese and 94 healthy control persons of normal weight. Determination of the urinary free cortisol content allowed a clear-cut distinction between the patients with hypercortisolism and the controls, resulting in a sensitivity of 100% and specificity of 98% for the diagnosis of Cushing's syndrome. The diagnostic accuracy of urinary free cortisol was distinctly superior to that of 17-hydroxycorticosteroids, which showed a wide overlap of values between the groups, with a sensitivity of 73% and a specificity of 94%. In conclusion, the measurement of basal urinary free cortisol provided an excellent diagnostic sensitivity and specificity in the assessment of adrenocortical function. This simple and accurate test thus seems to be particularly useful in the outpatient evaluation of patients with suspected Cushing's syndrome.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 59 (1981), S. 59-67 
    ISSN: 1432-1440
    Keywords: Captopril-treatment resistant hypertension ; Essential hypertension ; Renalparenchymatous hypertension ; Renovascular hypertension ; Captopril ; therapieresistente Hypertonie ; Essentielle Hypertonie ; Renalparenchymatöse Hypertonie ; Renovaskuläre Hypertonie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In der vorliegenden Studie wurden 51 Patienten mit schwerer, auf eine standardisierte Dreiertherapie resistente Hypertonie (20 mit essentieller, 15 mit renovaskulärer und 16 mit renalparenchymatöser Hypertonie) mit dem oralen Converting enzyme Inhibitor Captopril behandelt. Die mittlere Behandlungszeit betrug 8,6 Monate für Patienten mit essentieller, 8,9 Monate für solche mit renovaskulärer und 9,9 Monate für Fälle mit renalparenchymatöser Hypertonie. In allen 3 Patientengruppen konnte ein ausgeprägter und anhaltender Blutdruckabfall beobachtet werden. Allerdings war sowohl der absolute Blutdruckabfall als auch die individuelle Blutdruckantwort bei Patienten mit renovaskulärer Hypertonie ausgeprägter als bei solchen mit essentieller und renalparenchymatöser Hypertonie. Diese Ergebnisse weisen damit auf einen stärkeren antihypertensiven Effekt von Captopril bei Patienten mit renovaskulärer Hypertonie hin. Unsere Resultate zeigen weiter, daß eine Monotherapie mit Captopril eher die Ausnahme als die Regel war. So benötigten über 90% der Patienten zusätzliche Gabe eines Diuretikums und ein weiterer Anteil der Patienten darüberhinaus die Gabe eines Betablockers (50% der Patienten mit essentieller, 38% der Fälle mit renalparenchymatöser und 26% der Patienten mit renovaskulärer Hypertonie). Die Plasma-Renin-Aktivität stieg unter Captoprilbehandlung erwartungsgemäß an, während die Plasma-Aldosteron-Konzentration und die Converting enzyme Aktivität abfielen. In 17,6% (n=9) der 51 Patienten konnten Nebenwirkungen (Exanthem, Pruritus, supraventrikuläre Extrasystolen, Tachykardie, Wasser- und Flüssigkeitsretention, Raynaud-Phänomen, unvollständiger und vollständiger Geschmacksverlust und Leukopenie) beobachtet werden. Unsere Ergebnisse zeigen, daß Captopril bei schwerer therapieresistenter Hypertonie ein potentes Antihypertensivum ist. Dabei war bei unseren Patienten eine Monotherapie mit Captopril eher die Ausnahme als die Regel. So benötigten die meisten Patienten zusätzlich ein Diuretikum und/oder einen Betablocker. Allerdings erfordern die Nebenwirkungen des Medikaments eine engmaschige und genaue Überwachung aller Patienten.
    Notes: Summary In this study 51 patients with severe hypertension (20 essential, 15 renovascular and 16 renalparenchymatous) resistant to a standardized triple therapy were treated with the oral converting enzyme inhibitor captopril. Mean treatment period was 8.6 in essential, 8.9 in renovascular and 9.9 months in renalparenchymatous hypertension. In each of the 3 groups a marked and sustained blood pressure reduction was observed promptly after introducing captopril. However, absolute fall in mean blood pressure as well as individual blood pressure response were more pronounced in renovascular than in essential and in renalparenchymatous hypertension demonstrating a higher blood pressure lowering activity of the converting enzyme inhibitor in the former. In addition, our results document that monotherapy with captopril was rather the exception than the rule. More than 90% of all patients required at least the addition of a diuretic and even a substantial percentage of patients needed as a third drug a betablocker (50% in essential, 38% in renalparenchymatous and 26% in renovascular hypertension). As expected renin activity increased under captopril whereas plasma aldosterone and converting enzyme activity decreased. Side-effects (skin rash, pruritus, supraventricular extrasystoles, tachycardia, water and fluid retention, Raynaud-phenomenon, incomplete and complete taste loss and leucopenia) occurred in 17.6% (n=9) of the 51 patients. Our results show that captopril is a potent blood pressure lowering agent in severe and therapy resistant hypertension. The vast majority of patients, however, required concomitant therapy with a diuretic and/or a betablocker. Finally, the frequency of drug induced side-effects necessitates a close and careful monitoring of all patients.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 60 (1982), S. 859-862 
    ISSN: 1432-1440
    Keywords: Essential hypertension ; Sodium ; Calcium ; Essentielle Hypertonie ; Natrium ; Calcium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Intrazelluläre Natrium- und Calciumaktivitäten wurden mittels ionenselektiver Elektroden in Erythrozyten von primären Hypertonikern und Normotonikern mit und ohne familiäre Hochdruckbelastung bestimmt. Die intraerythrozytäre Natriumaktivität war bei Patienten und Normotonikern mit familiärer Hochdruckdisposition deutlich erhöht (15,16±2,35 mmol/l bei Hypertonikern und 9,74±1,43 mmol/l bei Normotonikern, Mittelwert±Standardabweichung) im Vergleich zur entsprechenden Gruppe ohne familiäre Hochdruckdisposition (8,35±2,08 mmol/l bei Hypertonikern und 7,00±1,38 mmol/l bei Normotonikern). Die mittlere intraerythrozytäre Calciumaktivität zeigte die höchsten Werte bei Hypertonikern (32,8±32,5 µmol/l bei Patienten mit und 25,3±19,0 µmol/l bei Patienten ohne familiäre Hochdruckdisposition), während bei Normotonikern die mittlere Calciumaktivität viel niedriger lag (9,6±9,7 bzw. 4,8±4,5 µmol/l). Unsere Ergebnisse zeigen, daß Veränderungen des intraerythrozytären Natriummetabolismus auf Patienten mit essentieller Hypertonie beschränkt sind, und in geringerem Maße auch auf Normotoniker, sofern in beiden Fällen eine familiäre Hochdruckdisposition besteht. Daher kann eine genetisch determinierte Veränderung des intrazellulären Natrium angenommen werden. Weiterhin kann aufgrund der Beobachtung, daß das intraerythrozytäre Calcium bei einem Teil der essentiellen Hypertoniker mit und ohne familiäre Disposition höht ist, vermutet werden, daß zusätzliche Faktoren außer dem Natrium für den gestörten intrazellulären Calciumstoffwechsel bei diesen Patienten verantwortlich sind.
    Notes: Summary Intracellular sodium and calcium activities were measured by ion-selective electrodes in red blood cells of primary hypertensives and of normotensives with and without a familial disposition to hypertension. Intraerythrocytic sodium activity was markedly elevated in patients and normotensives with a familial disposition to hypertension (15.16±2.35 mmol/l in hypertensives and 9.74±1.43 mmol/l in normotensives, respectively, mean value±sD) as compared to the corresponding group without such a history (8.35±2.08 mmol/l in hypertensives and 7.00±1.38 mmol/l in normotensives). Mean intraerythrocytic calcium activity showed the highest values in patients with hypertension (32.8±32.5 µmol/l in patients with and 25.3±19.0 µmol/l in those without a familial disposition to hypertension), whereas in normotensives mean calcium activity was much lower (9.6±9.7 and 4.8±4.5 µmol/l, respectively). Our results document that a disturbed intraerythrocytic sodium metabolism is limited to patients with essential hypertension and a familial disposition to hypertension and, to a lesser extent, to normotensives showing a familial disposition to hypertension. Thus, a genetically determined alteration in intracellular sodium can be assumed. Furthermore, the observation of an enhanced intraerythrocytic calcium in some essential hypertensives with and without a familial disposition suggests additional factors, other than sodium, responsible for the disturbed intracellular calcium balance in these patients.
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  • 10
    ISSN: 1432-1440
    Keywords: Essential hypertension ; Renin angiotensin aldosterone system ; Bodyweight ; Blood pressure in childhood ; Essentielle Hypertonie ; Renin-Angiotensin-Aldosteron-System ; Körpergewicht ; Blut-druck beim Kind
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In der vorliegenden Untersuchung wurden 294 Nachkommen (5–34 Jahre) essentieller Hypertoniker bezüglich Blutdruck, Renin-Angiotensin-Aldosteron-System and anderer kardiovaskulärer Risikofaktoren wie Glukose, Cholesterin und Triglyzeride untersucht und mit 122 Nachkommen (5–34 Jahre) normotoner Eltern verglichen. Dabei zeigte sich, daß Nachkommen essentieller Hypertoniker im Mittel statistisch signifikant höhere systolische und diastolische Blutdruckwerte zeigten als solche normotoner Eltern (p〈0,003 bzw. 0,005). Weiter ließ sich bei Kindern hypertoner Eltern im Mittel ein signifikant höheres Körpergewicht und ein größerer Body-Mass-Index beobachten als im Kontrollkollektiv (p〈0,006 bzw. 0,001). Mit Ausnahme statistisch signifikant niedrigerer Ruhe-Plasma-Aldosteronwerte (p〈0,002) bei Kindern essentieller Hypertoniker ließen sich zwischen beiden Kollektiven keine Unterschiede im Stimulationsaldosteron, in der Ruhe- und Stimulations-Plasma-Renin-Aktivität und im Plasmacortisol nachweisen. Ebenfalls zeigten die beiden Kollektive bezüglich der anderen untersuchten Parametern wie Kreatinin, Glukose, Cholesterin und Triglyzeride keine wesentlichen Unterschiede. Weiterhin wurden in der vorliegenden Untersuchung 41 hypertone Elternteile, 65 (normotone) Ehepartner von Hypertonikern und 47 (normotone) Eltern von Kontrollkindern untersucht. Erwarungsgemäß zeigten Hypertoniker statistisch signifikant höhere Blutdruckwerte als ihre Ehepartner und die Kontrolleltern (p〈0,001). Interessanterweise zeigten die hypertonen Eltern nicht nur einen höheren Body-Mass-Index als Kontrolleltern sondeern auch als Ehepartner (p〈0,01 bzw. 〈0,02). Diese Befunde stützen eine vorwiegend genetische Disposition als zugrundeliegende Ursache des höheren Körpergewichtsverhaltens und lassen eine vermehrte Nahrungsmittelaufnahme in Hypertonikerfamilien eher als unwahrscheinlich erscheinen. Die Ergebnisse der vorliegenden Studie legen es nahe, daß durch eine möglichst frühzeitige Kontrolle des Körpergewichtsverhaltens bei Nachkommen essentieller Hypertoniker ein Beitrag zur Primärprävention der Hochdruckkrankheit geleistet werden kann.
    Notes: Summary In the present study, blood pressure, the renin angiotensin aldosterone system, and other cardiovascular risk factors, such as glucose, cholesterine, and triglycerides, were investigated in 294 offspring of essential hypertensives (5–34 years) and in 122 children of normotensive parents (5–34 years). Offspring of essential hypertensives showed statistically significant higher systolic and diastolic blood pressure values than those of normotensive parents (p〈0.003, 〈0.005, respectively). Furthermore, in children of hypertensive parents a statistically significant higher body weight and body mass index than in controls could be observed (p〈0.006, 〈0.001, respectively). With the exception of statistically significant, lower mean supine plasma aldosterone values (p〈0.02) in children of hypertensive parents, no major differences between the two groups were seen in stimulated aldosterone, supine and stimulated plasma renin activity, and plasma cortisol. Furthermore, in the present study, 41 hypertensive parents, 65 (normotensive) spouses of hypertensives, and 47 (normotensive) parents of control children were investigated. As expected, hypertensive parents showed statistically significant higher blood pressure values than parents of control children and their spouses (p〈0.001). Interestingly, hypertensive parents had not only a higher body mass index than control parents but also than their spouses (p〈0.01 and 〈0.02, respectively). These findings support a genetic disposition as being the underlying cause of higher body weight in hypertensives and make it less probable that a higher food intake in hypertensive families is responsible for this phenomenon. The results of the present study indicate that early body weight control in children of hypertensive parents may be an important contribution to the prevention of hypertension.
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