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1. Spawning induction in Sterlet sturgeon (Acipenser ruthenus) with recombinant GnRH: Analysis of hormone profiles and spawning indices

Author:
Mohammadzadeh, Sedigheh; Yeganeh, Sakineh; Moradian, Fatemeh; Milla, Sylvain; Falahatkar, Bahram
Source:
Aquaculture 2021 v.533 pp. 736108
ISSN:
0044-8486
Subject:
testosterone,   etc   ; Acipenser ruthenus; blood sampling; breeding stock; estradiol; fish diseases; gonadotropin-releasing hormone; luteinization; ovulation; progesterone; reproductive disorders; secretion; sodium chloride; spawning; sturgeon;     Show all 15 Subjects
Abstract:
... In the present study, the biological function of recombinant gonadotropin-releasing hormone associate peptide (rGnRH) was tested for the induction of ovulation and spawning in Sterlet sturgeon (Acipenser ruthenus) broodstock. For this purpose, Sterlet sturgeon broodstock were divided into four treatments and treated with following preparing procedure: 0.9% NaCl (C); 2.5 μg kg body weight⁻¹ (BW) LH ...
DOI:
10.1016/j.aquaculture.2020.736108

2. Simultaneous quantification of steroid hormones and endocannabinoids (ECs) in human hair using an automated supported liquid extraction (SLE) and LC-MS/MS – Insights into EC baseline values and correlation to steroid concentrations

Author:
Voegel, Clarissa Daniela; Baumgartner, Markus R.; Kraemer, Thomas; Wüst, Stefan; Binz, Tina Maria
Source:
Talanta 2021 v.222 pp. 121499
ISSN:
0039-9140
Subject:
testosterone,   etc   ; androstenedione; automation; cannabinoids; cleaning; cortisol; cortisone; females; hairs; humans; liquid chromatography; males; methanol; normal values; progesterone; solvents; steroid hormones; stress response; tandem mass spectrometry; young adults;     Show all 20 Subjects
Abstract:
... Endogenous steroid hormones and endocannabinoids (ECs) are important regulators in the stress response of the human body. For the measurement of chronic stress, hair analysis has been established as method of choice for long-term and retrospective determination of endogenous stress markers. A sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of five ...
DOI:
10.1016/j.talanta.2020.121499

3. Classification and detection of testosterone propionate and nandrolone residues in duck meat using surface-enhanced Raman spectroscopy coupled with multivariate analysis

Author:
Yuan, Haichao; Liu, Muhua; Huang, Shuanggen; Zhao, Jinhui; Tao, Jinjiang
Source:
Poultry science 2021 v.100 no.1 pp. 296-301
ISSN:
0032-5791
Subject:
testosterone,   etc   ; Raman spectroscopy; breast meat; duck meat; least squares; liquid chromatography; meat extracts; models; nandrolone; prediction; propionic acid; quantitative analysis; tandem mass spectrometry;     Show all 13 Subjects
Abstract:
... There is a critical need for a rapid and simple method of qualitative and quantitative analysis of testosterone propionate (TP) and nandrolone (NT) residues in duck meat. In this study, we applied surface-enhanced Raman spectroscopy (SERS) coupled multivariate analysis for the classification and detection of TP and NT residues in duck meat. A total of 294 duck meat extract samples were obtained fr ...
DOI:
10.1016/j.psj.2020.10.018

4. Perfluoroheptanoic acid induces Leydig cell hyperplasia but inhibits spermatogenesis in rats after pubertal exposure

Author:
Li, Zengqiang; Li, Changchang; Wen, Zina; Yan, Haoni; Zou, Cheng; Li, Yang; Tian, Lili; Lei, Zhen; Li, Huitao; Wang, Yiyan; Zhong, Ying; Ge, Ren-shan
Source:
Toxicology 2021 v.448 pp. 152633
ISSN:
0300-483X
Subject:
testosterone,   etc   ; Leydig cells; Sertoli cells; biomarkers; blood serum; body weight; epididymis; estradiol; follicle-stimulating hormone; hormone secretion; hyperplasia; laboratory animals; luteinization; luteinizing hormone; males; mitogen-activated protein kinase; perfluorocarbons; phosphorylation; puberty; rats; reproductive toxicology; spermatogenesis;     Show all 22 Subjects
Abstract:
... Perfluoroheptanoic acid (PFHpA) is a short-chain alternative to long-chain perfluoroalkyl substances, which have been reported to possess reproductive toxicity. However, it is unclear whether PFHpA affects Leydig cell development during puberty. The 35-day-old Sprague Dawley male rats were exposed to PFHpA by gavage with 0 (corn oil), 10, 50, and 100 mg/kg/day for 21 days. PFHpA did not affect the ...
DOI:
10.1016/j.tox.2020.152633

5. Nail-biters and thrashing wins: Testosterone responses of football fans during World Cup matches

Author:
Burk, Christian L.; Mayer, Axel; Wiese, Bettina S.
Source:
Physiology & behavior 2019 v.209 pp. 112596
ISSN:
0031-9384
Subject:
testosterone,   etc   ; men; models; prediction;     Show all 4 Subjects
Abstract:
... Two main hypotheses have been formulated to explain short-term testosterone responses to competitions. The challenge hypothesis and the biosocial model of status make different predictions concerning the point of time, direction, and meaning of hormonal changes. This field study investigated whether testosterone reacts to experiences of challenge during the early stages of a competition or to expe ...
DOI:
10.1016/j.physbeh.2019.112596

6. Personality and physiological traits predict contest interactions in Kryptolebias marmoratus

Author:
Li, Cheng-Yu; Tseng, Yung-Che; Chen, Yu-Ju; Yang, Yusan; Hsu, Yuying
Source:
Behavioural processes 2020 v.173 pp. 104079
ISSN:
0376-6357
Subject:
testosterone,   etc   ; Kryptolebias marmoratus; aggression; cortisol; fish; oxygen consumption; personality;     Show all 7 Subjects
Abstract:
... Personality and physiological traits often have close relationships with dominance status, but the significance and/or direction of the relationships vary between studies. This study examines whether two personality traits (aggressiveness and boldness) and three physiological traits (testosterone and cortisol levels and oxygen consumption rates) are associated with contest decisions/performance us ...
DOI:
10.1016/j.beproc.2020.104079

7. Enzymatic preparation of Crassostrea oyster peptides and their promoting effect on male hormone production

Author:
Zhang, Wanwan; Wei, Yifang; Cao, Xiaoxiao; Guo, Kaixin; Wang, Qiangqiang; Xiao, Xiaochun; Zhai, Xufeng; Wang, Dingding; Huang, Zebo
Source:
Journal of ethnopharmacology 2021 v.264 pp. 113382
ISSN:
0378-8741
Subject:
testosterone,   etc   ; Caenorhabditis elegans; Crassostrea gigas; aphrodisiacs; bioactive compounds; bioinformatics; blood serum; computer simulation; cyclic AMP; enzymatic hydrolysis; enzyme activity; enzyme-linked immunosorbent assay; follicle-stimulating hormone; gene expression; gene expression regulation; genes; hormone secretion; humans; kidneys; males; mice; models; molecular biology; nitric oxide; nitric oxide synthase; oysters; papain; peptides; quantitative polymerase chain reaction; traditional medicine; trypsin; China;     Show all 32 Subjects
Abstract:
... Crassostrea gigas Thunberg and other oysters have been traditionally used in China as folk remedies to invigorate the kidney and as natural aphrodisiacs to combat male impotence.Erectile dysfunction (ED) has become a major health problem for the global ageing population. The aim of this study is therefore to evaluate the effect of peptide-rich preparations from C. gigas oysters on ED and related c ...
DOI:
10.1016/j.jep.2020.113382

8. Salivary testosterone concentration, anxiety, perceived performance and ratings of perceived exertion in basketball players during semi-final and final matches

Author:
de Arruda, Ademir Felipe Schultz; Aoki, Marcelo Saldanha; Drago, Gustavo; Moreira, Alexandre
Source:
Physiology & behavior 2019 v.198 pp. 102-107
ISSN:
0031-9384
Subject:
testosterone,   etc   ; anxiety; males; saliva; youth;     Show all 5 Subjects
Abstract:
... The aim of this study was to examine the effect of playing semi-final (SFM) and final (FM) matches on salivary testosterone (T) concentration, anxiety, session rating of perceived exertion (session-RPE) and perceived performance (PP) in elite male youth basketball players. Data from 25 players who participated ≥15 min in 6 assessed matches consisting of SFM (n = 3; 1 match for each age-category [U ...
DOI:
10.1016/j.physbeh.2018.10.008

9. Phytoestrogenic effect of fenugreek seed extract helps in ameliorating the leg pain and vasomotor symptoms in postmenopausal women: A randomized, double-blinded, placebo-controlled study

Author:
Krishnakumar, IM; Thomas, Jestin V.; Rao, Jyoti; John, Febi; Begum, Shamshad; Maliakel, Balu; IM, Krishnakumar; Khanna, Aman
Source:
PharmaNutrition 2020 v.14 pp. 100209
ISSN:
2213-4344
Subject:
testosterone,   etc   ; estradiol; fenugreek; follicle-stimulating hormone; muscles; pain; postmenopause; progesterone; questionnaires; seed extracts; women;     Show all 11 Subjects
Abstract:
... Fenugreek is a popular spice which has been evaluated for hormone related disorders.The present randomized, double-blinded, placebo-controlled study investigated the effect of a unique extract of fenugreek (FHE), at a dose of 250 mg × 2/day for 42 days on hormone balance and postmenopausal discomforts. Postmenopausal women (n = 48) having characteristic postmenopausal symptoms, as assessed by MRS ...
DOI:
10.1016/j.phanu.2020.100209

10. Effect of physiological and production activities on the concentration of naturally occurring steroid hormones in raw milk

Author:
Xu, Bozhou; Zhang, Feng; Xu, Xiuli; Li, Xiaoming; He, Muyi; Nie, Xuemei; Liu, Tong
Source:
International journal of dairy technology 2020 v.73 no.3 pp. 471-478
ISSN:
1364-727X
Subject:
testosterone,   etc   ; cortisol; cows; estradiol; lactation; methyltestosterone; progesterone; raw milk; steroid hormones;     Show all 9 Subjects
Abstract:
... This study aimed to collect comprehensive experimental data and evaluate the effects of physiological and production activities on the concentration of naturally occurring steroid hormones in raw cow milk. The average levels of the hormones analysed (progesterone = 12 680 ng/kg and cortisol = 284 ng/kg) were comparable with data reported in the literature. Oestradiol, testosterone and methyltestos ...
DOI:
10.1111/1471-0307.12672

11. Voice breaking and its relation to body mass and testosterone level in the Siberian Crane (Leucogeranus leucogeranus)

Author:
Klenova, Anna V.; Goncharova, Maria V.; Kashentseva, Tatiana A.; Naidenko, Sergey V.
Source:
Journal of ornithology 2020 v.161 no.3 pp. 859-871
ISSN:
2193-7192
Subject:
testosterone,   etc   ; Leucogeranus leucogeranus; adults; blood sampling; breeding season; chicks; juveniles; vocalization;     Show all 8 Subjects
Abstract:
... Vocal development of cranes (Gruidae) has attracted scientific interest due to its special stage, voice breaking. During voice breaking, chicks of different crane species produce calls with two fundamental frequencies that correspond to those in adult low-frequency and juvenile high-frequency vocalizations. However, triggers that affect voice breaking in cranes are mainly unknown. Here we studied ...
DOI:
10.1007/s10336-020-01773-w

12. Characterization of serum levels of testosterone and corticosterone in a blast and amputation rat model of heterotopic ossification

Author:
Qin, Mack Y.; Atwood, Rex E.; Ketchum, William A.; Kaba, Stephen A.; Bradley, Matthew J.
Source:
Molecular and cellular endocrinology 2020 v.509 pp. 110799
ISSN:
0303-7207
Subject:
testosterone,   etc   ; amputation; animal models; blood serum; bone formation; corticosterone; femoral fractures; rats;     Show all 8 Subjects
Abstract:
... Endocrine dysregulation's role in heterotopic ossification (HO) remains unexplored. We sought to examine corticosterone and testosterone in established rat models of ectopic bone formation, and correlate to HO formation with CT analysis.Fifteen rats were placed into three groups of traumatic injury patterns: Blast and injury (120 kPa blast, femoral fracture and quadriceps crush), injury only, and ...
DOI:
10.1016/j.mce.2020.110799

13. Cascate reactions of progesterone by mycelia and culture broth from marine-derived fungus Aspergillus sydowii CBMAI 935

Author:
Cardoso de Paula, Samuel Filipe; Porto, André Luiz Meleiro
Source:
Biocatalysis and agricultural biotechnology 2020 v.25 pp. 101546
ISSN:
1878-8181
Subject:
testosterone,   etc   ; Aspergillus; biotransformation; culture media; drugs; fungi; lactones; mycelium; pH; progesterone;     Show all 10 Subjects
Abstract:
... In this work, bio-oxidation cascate reactions of steroid progesterone were performed using culture broth and mycelia from marine-derived fungus Aspergillus sydowii CBMAI 935. The major products obtained from progesterone by Baeyer-Villiger cascate reactions were testosterone and testololactone. The bio-oxydation reactions were performed in quintuplicate experiments (32 °C, 130 rpm, pH 7.4); after ...
DOI:
10.1016/j.bcab.2020.101546

14. Comparison of steroid hormone hydroxylation mediated by cytochrome P450 3A subfamilies

Author:
Niwa, Toshiro; Okamoto, Ayaka; Narita, Kanae; Toyota, Manami; Kato, Kyoko; Kobayashi, Kyoko; Sasaki, Shoko
Source:
Archives of biochemistry and biophysics 2020 v.682 pp. 108283
ISSN:
0003-9861
Subject:
testosterone,   etc   ; catalytic activity; cortisol; cytochrome P-450; humans; hydroxylation; liquid chromatography; progesterone; steroid hormones;     Show all 9 Subjects
Abstract:
... Hydroxylation activity at the 6β-position of steroid hormones (testosterone, progesterone, and cortisol) by human cytochromes P450 (CYP) 3A4, polymorphic CYP3A5, and fetal CYP3A7 were compared to understand the catalytic properties of the major forms of human CYP3A subfamily. Testosterone, progesterone, and cortisol 6β-hydroxylation activities of recombinant CYP3A4, CYP3A5, and CYP3A7 were determi ...
DOI:
10.1016/j.abb.2020.108283

15. Testosterone modulates structural synaptic plasticity of primary cultured hippocampal neurons through ERK - CREB signalling pathways

Author:
Guo, Guoxin; Kang, Lin; Geng, Dandan; Han, Shuo; Li, Sha; Du, Juan; Wang, Chang; Cui, Huixian
Source:
Molecular and cellular endocrinology 2020 v.503 pp. 110671
ISSN:
0303-7207
Subject:
testosterone,   etc   ; binding proteins; brain; messenger RNA; mitogen-activated protein kinase; neurons; neuroplasticity; phosphorylation; signal transduction;     Show all 9 Subjects
Abstract:
... Although hippocampus-derived androgens play an important role in hippocampal synaptic plasticity, studies at the cellular level have received relatively less attention. Furthermore, the underlying signalling pathways associated with synaptic plasticity remain unclear. Results of the present study demonstrated that testosterone treatment of primary cultured rat hippocampal neurons resulted in a rap ...
DOI:
10.1016/j.mce.2019.110671

16. Perinatal concentrations of 17β-estradiol and testosterone in the toe claws of female and male dogs from birth until 60 days of age

Author:
Fusi, J.; Comin, A.; Faustini, M.; Prandi, A.; Veronesi, M.C.
Source:
Animal reproduction science 2020 v.214 pp. 106313
ISSN:
0378-4320
Subject:
testosterone,   etc   ; abnormal development; body weight; claws; estradiol; females; fetal development; litter size; males; puppies; radioimmunoassays; steroids;     Show all 12 Subjects
Abstract:
... This study was conducted to assess concentrations of 17β-estradiol (E2) and testosterone (T) in toe claws of puppies collected at birth, at 30 and at 60 days of age, evaluating changes relating to age and effect of puppy sex, Apgar score, bodyweight at birth, “litter effect”, litter size, and maternal age. Puppies (n = 89), 46 males and 43 females, with normal weight and without malformations, wer ...
DOI:
10.1016/j.anireprosci.2020.106313

17. Targeting Wistar rat as a model for studying benign, premalignant and malignant lesions of the prostate

Author:
Campolina-Silva, Gabriel H.; Werneck-Gomes, Hipácia; Maria, Bruna T.; Barata, Maria C.; Torres, María J.; Contreras, Héctor R.; Mahecha, Germán A.B.; Oliveira, Cleida A.
Source:
Life sciences 2020 v.242 pp. 117149
ISSN:
0024-3205
Subject:
testosterone,   etc   ; atrophy; beta catenin; cadherins; carcinogenesis; estradiol; humans; males; models; neoplasms; vimentin;     Show all 11 Subjects
Abstract:
... The purpose of this study was to describe a suitable experimental model for studying aging-related prostate disorders including cancer.12-month old Wistar rats were kept in control conditions (n = 12) or treated (n = 16) for 6 months with Silastic implants filled with testosterone (T) and estradiol (E₂). After the experiment period (at 18 months of age), animals were euthanized and the prostate an ...
DOI:
10.1016/j.lfs.2019.117149

18. Intrasexual competition mediates the relationship between men's testosterone and mate retention behavior

Author:
Arnocky, Steven; Albert, Graham; Carré, Justin M.; Ortiz, Triana L.
Source:
Physiology & behavior 2018 v.186 pp. 73-78
ISSN:
0031-9384
Subject:
testosterone,   etc   ; males; men; models;     Show all 4 Subjects
Abstract:
... Previous research has established a link between testosterone concentrations in males and their mating effort as it relates to their mate seeking behaviors. However, very little research has analyzed how variability in basal testosterone concentration of males affects their mating effort once they have secured a romantic partner. In a sample of undergraduate men, the relationship between testoster ...
DOI:
10.1016/j.physbeh.2018.01.007

19. Uncovering the mechanisms of leech and centipede granules in the treatment of diabetes mellitus-induced erectile dysfunction utilising network pharmacology

Author:
Ma, Jian Xiong; Wang, Bin; Li, Hai Song; Yu, Jia; Hu, Hui Min; Ding, Cai Fei; Chen, Wang Qiang
Source:
Journal of ethnopharmacology 2021 v.265 pp. 113358
ISSN:
0378-8741
Subject:
testosterone,   etc   ; Chilopoda; active ingredients; animal disease models; biochemical pathways; blood circulation; blood coagulation; cAMP-dependent protein kinase; cGMP-dependent protein kinase; calcium signaling; computer simulation; computer software; cyclic AMP; cyclic GMP; databases; diabetes mellitus; endothelial nitric oxide synthase; gene expression; gene expression regulation; genes; granules; histidine; histology; hydrogen bonding; hypoxia-inducible factor 1; interleukin-8; messenger RNA; neuronal nitric oxide synthase; nitric oxide; oxidative stress; pharmacology; phosphatidylinositol 3-kinase; prediction; protein synthesis; protein-protein interactions; rats; streptozotocin; superoxide dismutase; therapeutics; traditional medicine; ursolic acid; China;     Show all 42 Subjects
Abstract:
... Diabetes mellitus-induced erectile dysfunction (DMED) is one of the most common complications of diabetes mellitus. Leech and centipede granules (LCG) have traditionally been used as blood-activating agents in various ethnomedicinal systems of East Asia, especially in China. It is often used to regulate bodily functions and considered as adjuvant therapy for promoting blood circulation, alleviatin ...
DOI:
10.1016/j.jep.2020.113358

20. Short-term treatment with deslorelin implants to improve the bucks’ ability to stimulate cyclic activity during the late non-breeding season

Author:
Giriboni, Julia; Gökdal, Özdal; Atay, Okan; Kemali Özuğur, Ali; Erdoğan, Güneş; Santiago-Moreno, Julián; Ungerfeld, Rodolfo
Source:
Small ruminant research 2020 v.193 pp. 106240
ISSN:
0921-4488
Subject:
testosterone,   etc   ; adults; blood sampling; bucks; corpus luteum; deslorelin acetate; estrus; females; gonadotropin-releasing hormone; periodicity; pregnancy diagnosis; ultrasonics; ultrasonography;     Show all 13 Subjects
Abstract:
... The sudden introduction of males to anestrous females stimulates synchronous ovulations. The effectiveness of males to induce this response is androgen dependent. The aim of the present study was to compare the reproductive response of anestrous does to the introduction of teaser bucks treated with or without deslorelin implants, which continuously release a GnRH agonist. While 5 bucks were acutel ...
DOI:
10.1016/j.smallrumres.2020.106240