Afternoon T: Testosterone level is higher in red than yellow male polychromatic lizards

2007 ◽  
Vol 91 (5) ◽  
pp. 531-534 ◽  
Author(s):  
Mats Olsson ◽  
Mo Healey ◽  
Lee Astheimer
Keyword(s):  
Testosterone Level ◽  
Yellow Male ◽  
T Testosterone

Incretin release in a different state of testosterone level among lean PCOS women - case control study

2015 ◽  
Author(s):  
Sandra Mrozinska ◽  
Tomasz Milewicz ◽  
Iwona Rogatko ◽  
Marta Kialka ◽  
Magdalena Spalkowska ◽  
...  
Keyword(s):  
Testosterone Level ◽  
Case Control Study ◽  
Case Control ◽  
Control Study

Free Testosterone Level And Quality of Cauda Epididymis Sperm of Local Rabbit That Given Commercial Feed Supplemented By Cod Fish Liver Oil

2016 ◽  
Vol 2 (3) ◽  
pp. 1
Author(s):  
Ni Gusti Ayu Manik Ermayanti ◽  
I Gusti Lanang Oka ◽  
I Gede Mahardika ◽  
I Putu Suyadnya
Keyword(s):  
Testosterone Level ◽  
Sperm Quality ◽  
Free Testosterone ◽  
Fish Liver ◽  
Testosterone Levels ◽  
Commercial Feed ◽  
One Way Anova ◽  
Free Testosterone Level ◽  
Range Test

This study was intended to determine the free testosterone levels and sperm quality of local rabbit that was given commercial feed supplemented cod fish liver oil.  The experiment design that was used in this research was Complete Random Design (CRD) with four experiments of feed, i.e. commercial feed without cod fish liver oil (R-0) as control, commercial feed + 1,5% cod fish liver oil (R-1), commercial feed + cod fish liver oil 3% (R-2), commercial feed + cod fish liver oil 4,5% (R-3). The each experiment included eight rabbits and feed experiment was given starting by 13 weeks to 26 weeks years old. The variable that observed was free testosterone level and sperm quality of local rabbit. The data that was obtained to be analyzed with One Way Anova and if its contrast was done more test with Duncan’s Multiple Range Test (DMRT). The result of this research was to show that supplementation of cod fish liver oil in commercial feed was to show the result that a real distinction of (P<0, 05) towards free testosterone level and sperm quality of local rabbit.

scholarly journals Effects of exogenous adiponectin supplementation in early pregnant PCOS mice on the metabolic syndrome of adult female offspring

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Meng Zuo ◽  
Guotao Liao ◽  
Wenqian Zhang ◽  
Dan Xu ◽  
Juan Lu ◽  
...  
Keyword(s):  
Adult Female ◽  
Early Pregnancy ◽  
Testosterone Level ◽  
Metabolic Disorders ◽  
Serum Testosterone ◽  
Female Offspring ◽  
Metabolic Phenotype ◽  
Serum Testosterone Level ◽  
The Metabolic Syndrome ◽  
Pcos Group

Abstract Objective PCOS is a heterogeneous endocrine disorder with both reproductive and metabolic abnormalities. At present, PCOS has been confirmed to have a certain genetic background. Compared with healthy women, the vast majority of PCOS patients have hyperandrogenemia, and this excessive androgen exposure during pregnancy may affect the development of female fetuses. The aim of the current study was to investigate the effect of adiponectin intervention during early pregnancy of obese mice with PCOS on the metabolic phenotype of adult female offspring. Methods After the PCOS model was established, C57BL/6J mice were divided into maternal-control, maternal-PCOS, and maternal-PCOS + APN groups. DHEA-induced PCOS mice were supplemented with adiponectin (10 mg/kg/day) in the early pregnancy in order to eliminate adverse hormone exposure and then traced for endocrine indicators in their adult female offspring, which were observed for metabolism syndrome or endocrine disturbance and exhibited the main effects of APN. To further explore the underlying mechanism, the relative expressions of phosphorylated AMPK, PI3K, and Akt were detected in the ovaries of offspring mice. Results The serum testosterone level of the maternal-PCOS + APN group in early pregnancy was significantly lower than that of the maternal-PCOS group (p < 0.01). The serum testosterone level in the offspring-PCOS + APN group was significantly lower than in the offspring-PCOS group (p <0.05), the diestrus time characterized by massive granulocyte aggregation in the estrus cycle was significantly shorter than in the offspring-PCOS group (p<0.05), and the phenotypes of PCOS-like reproductive disorders and metabolic disorders, such as obesity, insulin resistance, impaired glucose tolerance, and hyperlipidemia, were also significantly improved in the offspring-PCOS + APN group (p < 0.05). Compared with the control group, the expression levels of phosphorylated AMPK, PI3K, and Akt in the offspring-PCOS group were significantly decreased (p < 0.05), while those in the offspring-PCOS + APN group were significantly increased (p < 0.05). Conclusions APN intervention in early pregnancy significantly reduced the adverse effects of maternal obesity and high androgen levels during pregnancy on female offspring and corrected the PCOS-like endocrine phenotype and metabolic disorders of adult female offspring. This effect may be caused by the activation of the AMPK/PI3K-Akt signaling pathway in PCOS offspring mice.

Correlation Between Serum Testosterone Level and Concentrations of Copper and Zinc in Hair Tissue

2011 ◽  
Vol 144 (1-3) ◽  
pp. 264-271 ◽  
Author(s):  
Chung Soo Chang ◽  
Jong Bo Choi ◽  
Hae Jin Kim ◽  
Sat Byul Park
Keyword(s):  
Testosterone Level ◽  
Serum Testosterone ◽  
Serum Testosterone Level ◽  
Copper And Zinc

699 TESTOSTERONE LEVEL IS RELATED TO DIAGNOSE OF ADENOCARCINOMA OF THE PROSTATE IN HYPOGONADIC PATIENTS BUT NOT IN EUGONADAL PATIENTS

2010 ◽  
Vol 183 (4S) ◽  
Author(s):  
Eduardo García-Cruz ◽  
Jorge Huguet Pérez ◽  
María José Ribal Caparrós ◽  
Meritxell Pérez Márquez ◽  
Marta Piqueras Bartolomé ◽  
...  
Keyword(s):  
Testosterone Level ◽  
Adenocarcinoma Of The Prostate

The Prostate Saturation Point after Testosterone Replacement Therapy in Testosterone Deficiency Patient

2021 ◽  
Vol 104 (9) ◽  
pp. 1465-1470
Keyword(s):  
Replacement Therapy ◽  
Testosterone Level ◽  
Androgen Receptors ◽  
Prostate Gland ◽  
Specific Antigen ◽  
Testosterone Replacement ◽  
Testosterone Replacement Therapy ◽  
Testosterone Deficiency ◽  
Saturation Model ◽  
Secondary Objective

Background: The effect of testosterone on the prostate gland is an unresolved question. The prostate saturation model is a recent hypothesis explaining that the stimulation of prostate tissue by testosterone is limited to a certain level of testosterone due to the limited number of androgen receptors. However, data from the Thai patients related to this issue are still lacking and need to be explored. Objective: To investigate prostate changes after testosterone replacement therapy (TRT). Materials and Methods: A retrospective study including testosterone-deficient patients who had TRT between 2011 and 2017 at Ramathibodi Hospital was conducted. The change in prostate-specific antigen (PSA) levels before and after TRT, or after a 1-year observation, was measured and analyzed as the primary objective. As a secondary objective, the authors measured and evaluated normal PSA velocity (PSAV) in the patients after TRT. Results: One hundred eleven testosterone deficient patients were included for analysis. The mean age was 62 years old. The baseline testosterone level and PSA level at the beginning were 247 ng/dL and 1.16 ng/mL, respectively. After undergoing TRT for one year, the results showed that the testosterone and the PSA levels were 307 ng/dL and 1.46 ng/mL, respectively. In addition, the subgroup analysis illustrated that patients who had low baseline testosterone levels such as 247 ng/dL or less, had significant increase of PSA level after treatment. However, when the baseline testosterone level was more than 247 ng/dL, the PSA levels were steady after treatment. For the secondary-objective results, the PSAV of the testosterone deficiency patients after TRT was 0.3 ng/mL/year. Conclusion: The evidence clearly indicates that TRT significantly increased the serum testosterone level. However, it had a limited effect on PSA change. The present study results supported the hypothesis of the prostate saturation model. The authors believe that a testosterone level of 247 ng/dL can saturate all androgen receptors in the prostate gland and no longer increase prostate stimulation. Keywords: Prostate-specific antigen; Prostate cancer; Testosterone replacement Therapy; Prostate saturation

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