Ejakulat-Fruktose und Fertilitätsdiagnostik

Gropper, H; Nikolowski, W

doi:10.1055/s-0028-1120002

Cited by 18 publications

(3 citation statements)

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“…No relationship can be shown between the concentration of fructose and the volume of ejaculate, as long as the semen in question is 'normal' (McCullagh & Schaffenburg, 1951), endocrinological cases will not be considered here, but will be discussed in detail later. Nor is it possible to verify the correlation between the number of spermatozoa and the precentage of fructose claimed by Gropper & Nikolowski (1954). Moreover, working in collaboration with Stossier (1960), we found notable lower percentages of fructose with increasing numbers of spermatozoa.…”

Section: Fructolysis Indexmentioning

confidence: 64%

“…FRUCTOSE AND NUMBER OF SPERMATOZOA Correlation has often been assumed to exist, without direct evidence, between fructose concentration in seminal plasma and certain clinical groupings based on sperm abnormalities (Gropper & Nikolowski, 1954;Eichenberger & Goossens, 1950; McCullagh & Schaffenburg, 1951). No relationship can be shown between the concentration of fructose and the volume of ejaculate, as long as the semen in question is 'normal' (McCullagh & Schaffenburg, 1951), endocrinological cases will not be considered here, but will be discussed in detail later.…”

Section: Fructolysis Indexmentioning

confidence: 99%

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Relation Between Fructose Content of Semen and Fertility in Man

Schirren¹

1963

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Biochemical and morphological examinations on human semen have been carried out on more than 2000 patients at a fertility clinic, and the findings are reported in this paper. The fructolysis of human semen depends on the presence of normal spermatozoa; centrifuged cell-free seminal plasma shows no fructolysis. The relationship between fructose content and the sperm count of the semen has been investigated. It was found that the absolute fructose concentration was inversely proportional to the number of spermatozoa. The normal fructose value was found to be 1200 to 4500 ug/ml; values below 1200 Mg/ml were considered to be pathological and due to inflammation of the seminal vesicles or to androgen deficiency. The variation in fructose content in a normal patient (1200 to 4500 µg/ml) was never found to be below 1200 pg/ml. The fructose concentration was diminished following abstinence of 8 to 14 days or more. The average fructose value is higher in groups of young patients than in groups of aged patients. Particular attention was given to the group of patients with 'normospermia with postpubescent interstitial-cell in¬ sufficiency' in this investigation. These patients are infertile but after treatment with methyltestosterone or chorionic gonadotrophin the fructose value returned to normal and the patients became fertile.

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Section: Fructolysis Indexmentioning

confidence: 64%

Section: Fructolysis Indexmentioning

confidence: 99%

Relation Between Fructose Content of Semen and Fertility in Man

Schirren¹

1963

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“…Es wird angenommen, dass die wesentliche Rolle der Fruktose in der Deckung des Energiebedarfes der Spermien besteht [3,4,13,14,16,21,22,24,25].Die heute im Rahmen der männlichen Fertilitätsuntersuchung üb liche Bestim mung der Fruktosekonzentration im Sperma stellt einen Gradmesser für die Funktion der Leydig'schen Zwischenzellen als der Bildungsstätte des Testosterons dar [9,15,16,19,21,22,25,26], und der Fruktoseabbau wird als Indikator der Stoffwechsclaktivität der Spermien und dam it ihrer V italität gewertet [2-4, 14-18, 21, 22, 24]. In der Veterinärmedizin fanden sich direkte Korrelationen zwi schen der Fruktolysegrösse und der Befruchtungsfähigkeit des Sper mas bei Bullen (6,10,23].…”

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