scholarly journals Plasma progesterone and luteinizing hormone concentrations and the role of the corpus luteum and LH gonadotrophs in the control of delayed implantation in Schreibers' long-fingered bat (Miniopterus schreibersii)

Reproduction ◽  
1991 ◽  
Vol 93 (1) ◽  
pp. 31-42 ◽  
Author(s):  
R. T. F. Bernard ◽  
C. Bojarski ◽  
R. P. Millar
1969 ◽  
Vol 62 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Elof D. B. Johansson ◽  
Leif Wide

ABSTRACT Plasma LH and progesterone levels were measured around the time of ovulation in 16 normal menstrual cycles. No increased levels of progesterone were found before the LH peak. The maximal LH peak levels lasted for 16–20 h at which time the plasma progesterone rose to a concentration of 1 to 2 ng/ml. Following the fall in the LH concentration, there was a rapid rise in the plasma progesterone concentration, indicating the formation of a corpus luteum. The lowest basal body temperature coincided with the first significant rise in LH levels.


Endocrinology ◽  
1983 ◽  
Vol 112 (6) ◽  
pp. 2181-2186
Author(s):  
MARK S. NANES ◽  
W. K. MORISHIGE ◽  
I. ROTHCHILD

2000 ◽  
Vol 35 (3-4) ◽  
pp. 129-133
Author(s):  
B Gawronska ◽  
A Stepien ◽  
AJ Ziecik
Keyword(s):  

1967 ◽  
Vol 55 (1) ◽  
pp. 91-96 ◽  
Author(s):  
Benno Runnebaum ◽  
Josef Zander

ABSTRACT Progesterone was determined and identified in human peripheral blood during the preovulatory period of the menstrual cycle, by combined isotope derivative and recrystallization analysis. The mean concentration of progesterone in 1.095 ml of plasma obtained 9 days before ovulation was 0.084 μg/100 ml. However, the mean concentration of progesterone in 1.122 ml of plasma obtained 4 days before ovulation was 0.279 μg/100 ml. These data demonstrate a source of progesterone secretion other than the corpus luteum. The higher plasma-progesterone concentration 4 days before ovulation may indicate progesterone secretion of the ripening Graafian follicle of the ovary.


1969 ◽  
Vol 61 (1_Suppl) ◽  
pp. S214 ◽  
Author(s):  
Elof Johansson ◽  
Leif Wide

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