Abstract:
:Transient activation of the hypothalamic-pituitary-gonadal axis in early infancy plays an important role in male genital development and sexual differentiation of the brain, but factors contributing to individual variation in testosterone levels during this period are poorly understood. We measured salivary testosterone levels in 222 infants (119 males, 103 females, 108 singletons, 114 twins) between 2.70 and 4.80 months of age. We tested 16 major demographic and medical history variables for effects on inter-individual variation in salivary testosterone. Using the subset of twins, we estimated genetic and environmental contributions to salivary testosterone levels. Finally, we tested single nucleotide polymorphisms (SNPs) within ±5 kb of genes involved in testosterone synthesis, transport, signaling, and metabolism for associations with salivary testosterone using univariate tests and random forest (RF) analysis. We report an association between 5 min APGAR scores and salivary testosterone levels in males. Twin modeling indicated that individual variability in testosterone levels was primarily explained by environmental factors. Regarding genetic variation, univariate tests did not reveal any variants significantly associated with salivary testosterone after adjusting for false discovery rate. The top hit in males was rs10923844, an SNP of unknown function located downstream of HSD3B1 and HSD3B2. The top hits in females were two SNPs located upstream of ESR1 (rs3407085 and rs2295190). RF analysis, which reflects joint and conditional effects of multiple variants, indicated that genes involved in regulation of reproductive function, particularly LHCGR, are related to salivary testosterone levels in male infants, as are genes involved in cholesterol production, transport, and removal, while genes involved in estrogen signaling are related to salivary testosterone levels in female infants.
journal_name
Front Endocrinol (Lausanne)journal_title
Frontiers in endocrinologyauthors
Xia K,Yu Y,Ahn M,Zhu H,Zou F,Gilmore JH,Knickmeyer RCdoi
10.3389/fendo.2014.00187subject
Has Abstractpub_date
2014-10-30 00:00:00pages
187issn
1664-2392journal_volume
5pub_type
杂志文章abstract::Fibrodysplasia ossificans progressiva (FOP) is an autosomal dominant disease, characterized by the formation of heterotopic ossification (HO) in muscles, ligaments, and tendons. Flare-ups, an inflammatory process that often precedes the formation of HO, can occur spontaneously, but trauma is also a common trigger. It ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2020.00006
更新日期:2020-02-12 00:00:00
abstract::Gonadotropin-releasing hormone (GnRH) is the primary regulator of mammalian reproductive function in both males and females. It acts via G-protein coupled receptors on gonadotropes to stimulate synthesis and secretion of the gonadotropin hormones luteinizing hormone and follicle-stimulating hormone. These receptors co...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2013.00180
更新日期:2013-11-20 00:00:00
abstract::Osteoporosis is metabolic bone disease caused by an altered balance between bone anabolism and catabolism. This dysregulated balance is responsible for fragile bones that fracture easily after minor falls. With an aging population, the incidence is rising and as yet pharmaceutical options to restore this imbalance is ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2019.00006
更新日期:2019-01-29 00:00:00
abstract::Background: Previous studies have confirmed that APOE genotype is associated with lipid metabolism, but related studies are inconsistent. Therefore, we conducted this cross-sectional study to explore the associations between apolipoprotein E (APOE) genotypes and serum levels of fasting blood sugar, triglycerides, tota...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00827
更新日期:2019-12-05 00:00:00
abstract::Primary small cell carcinoma of the breast (SCCB) is a rare tumor subtype comprising <0.1% of all breast carcinomas. Here we present a case of thyroid transcription factor-1 (TTF-1) positive SCCB that recurred within 3 years of diagnosis in the lung and lymph nodes. Given the small number of cases, no clear guidelines...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2020.00228
更新日期:2020-04-29 00:00:00
abstract::Background: Carney complex (CNC) is a rare multiple endocrine neoplasia syndrome with autosomal dominant inheritance. Affected individuals present with mucocutaneous lentigines/blue nevi, cardiac and noncardiac myxomatous tumors, and multiple endocrine tumors. Mutations in PRKAR1A have been identified as genetic cause...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2020.00296
更新日期:2020-05-08 00:00:00
abstract::Pulmonary fibrosis is a hallmark of diseases such as systemic sclerosis (SSc, scleroderma) and idiopathic pulmonary fibrosis (IPF). To date, the therapeutic options for patients with pulmonary fibrosis are limited, and organ transplantation remains the most effective option. Insulin-like growth factor-binding protein ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2018.00601
更新日期:2018-10-15 00:00:00
abstract::Bone marrow adipose tissue (MAT) is distinct from white adipose tissue (WAT) or brown adipose tissue (BAT) for its location, feature and function. As a largely ignored adipose depot, it is situated in bone marrow space and resided with bone tissue side-by-side. MAT is considered not only as a regulator of bone metabol...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2019.00069
更新日期:2019-02-08 00:00:00
abstract::In some organisms and cells, oxygen availability influences oxygen consumption. In this review, we examine this phenomenon of hypoxic hypometabolism (HH), discussing its features, mechanisms, and implications. Small mammals and other vertebrate species exhibit "oxyconformism," a downregulation of metabolic rate and bo...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2018.00668
更新日期:2018-11-13 00:00:00
abstract::GPER-1 is a novel membrane sited G protein-coupled estrogen receptor. Clinical studies have shown that patients suffering an estrogen receptor α (ERα)/GPER-1 positive, breast cancer have a lower survival rate than those who have developed ERα-positive/GPER-1 negative tumors. Moreover, absence of GPER-1 improves the pr...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2020.563165
更新日期:2020-09-30 00:00:00
abstract::The steroid module of the Athlete Biological Passport, the newest innovation in doping testing, is currently being finalized for implementation. Several factors, other than doping, can affect the longitudinal steroid profile. In this study, we investigated the effect of hormonal contraceptives (HC) as well as the effe...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2014.00050
更新日期:2014-04-10 00:00:00
abstract::Phthalates are ubiquitous environmental endocrine-disrupting chemicals suspected to interfere with developmental androgen action leading to adverse effects on male reproductive function. Prenatal exposure studies in rodents show cryptorchidism, hypospadias and reduced testicular volume (TV), testosterone and anogenita...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2018.00288
更新日期:2018-06-04 00:00:00
abstract::A total of 50% of patients undergoing IVF treatment has previously been estimated to fulfill the POSEIDON classification criteria; importantly, although the reproductive prognosis differs between patients, POSEIDON patients share the same characteristic of a low ovarian response to exogenous gonadotropin stimulation-i...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2019.00439
更新日期:2019-07-11 00:00:00
abstract::Parathyroid (PTH) exploration surgery carries the risk of developing post-operative thyroiditis due to vigorous manual manipulation of the thyroid gland during surgery. Post-operative thyroiditis has a wide spectrum of clinical manifestations. However, it remains underreported. Here, we describe a case of post-operati...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2015.00123
更新日期:2015-08-18 00:00:00
abstract::It is now well-established that the pathways that control lymphocyte metabolism and function are intimately linked, and changes in lymphocyte metabolism can influence and direct cellular function. Interestingly, a number of recent advances indicate that lymphocyte identity and metabolism is partially controlled via ep...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2019.00466
更新日期:2019-07-11 00:00:00
abstract::The origin of the coronavirus disease 2019 (COVID-19) pandemic is zoonotic. The circadian day-night is the rhythmic clue to organisms for their synchronized body functions. The "development for mankind" escalated the use of artificial light at night (ALAN). In this article, we tried to focus on the possible influence ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2020.00622
更新日期:2020-09-10 00:00:00
abstract::Introduction: An increase of serum dehydroepiandrosterone (DHEA) sulfate (DHEAS) is observed in premature adrenarche and congenital adrenal hyperplasia. Very high DHEAS levels are typical for adrenal tumors. Approximately 74% of DHEAS is hydrolyzed to DHEA by the steroid sulfatase (STS). The reverse reaction is DHEA s...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2020.00240
更新日期:2020-05-06 00:00:00
abstract::Background: This study investigated the relationship strength between hypothyroidism and cardiovascular and renal outcomes in diabetic patients. Methods: The electronic databases PubMed, EmBase, and Cochrane library were screened for relevant studies published before November 2018. The outcomes included major cardiova...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2019.00889
更新日期:2020-01-10 00:00:00
abstract::Initially identified as monomers, G protein-coupled receptors (GPCRs) can also form functional homo- and heterodimers that act as distinct signaling hubs for cellular signal integration. We previously found that the angiotensin II (Ang II) type 1 receptor (AT1R) and the prostaglandin F2α (PGF2α) receptor (FP), both im...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00162
更新日期:2019-03-18 00:00:00
abstract::Background: Myostatin (Mstn), a member of the TGF-β superfamily, is a negative regulator of skeletal muscle mass in mammals. Precise regulation of Mstn expression is important for somite growth in fish. MicroRNA (miRNA), a type of small non-coding RNA, regulates gene expression at the post-transcriptional level and pa...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00812
更新日期:2019-12-03 00:00:00
abstract:Objective:Individuals with diabetic peripheral neuropathy (DPN) have functional deficits that increase their risk of falling. However, psychological aspects such as loss of confidence in undertaking activities could also contribute to this risk. We examined correlations between balance confidence and fall risk among in...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2020.573804
更新日期:2020-10-23 00:00:00
abstract::Aim: Type 2 Diabetes Mellitus (T2DM) is associated with both microvascular complications such as diabetic retinopathy (DR), and macrovascular complications like coronary artery disease (CAD). Genetic risk factors have a role in the development of these complications. In the present case-control study, we investigated ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00283
更新日期:2019-05-03 00:00:00
abstract::Hard tissue regeneration represents a challenge for the Regenerative Medicine and Mesenchymal stem cells (MSCs) could be a successful therapeutic strategy. T-LysYal® (T-Lys), a new derivative of Hyaluronic Acid (HA) possessing a superior stability, has already been proved efficient in repairing corneal epithelial cell...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2020.00285
更新日期:2020-05-05 00:00:00
abstract::Objective: Soy and cocoa have been suggested to be beneficial for diabetes. The aim of this study was to identify the effects of soy protein, isoflavones, and cocoa on glycemic control parameters. Research design and methods: The study was a parallel, double-blind, placebo-controlled study where patients with diet or ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00296
更新日期:2019-05-09 00:00:00
abstract::Introduction: Pituitary metastases (PM) are rare events and to date only very few cases of melanoma PM have been described in literature up to now. Case Presentation: We describe the clinical history of a 33-year-old male patient who underwent surgical excision of an inter-scapular melanoma in 2008. The subsequent fol...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2020.00471
更新日期:2020-07-23 00:00:00
abstract::Background: The number of subjects with gender dysphoria has been increasing. In general, male-to-female transsexual subjects are treated with estradiol valerate therapy. In this report, we showed the time course of ACTH and cortisol levels after estradiol valerate injection in a male subject with gender dysphoria. It...
journal_title:Frontiers in endocrinology
pub_type:
doi:10.3389/fendo.2019.00751
更新日期:2019-11-05 00:00:00
abstract::Animals store metabolic energy as electrochemical gradients. At least 50% of mammalian energy is expended to maintain electrochemical gradients across the inner mitochondrial membrane (H+), the sarcoplasmic reticulum (Ca++), and the plasma membrane (Na+/K+). The potential energy of these gradients can be used to perfo...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2017.00224
更新日期:2017-09-01 00:00:00
abstract::Objectives: To evaluate the impact of metformin (MTF) use on TSH levels, thyroid volume and volume of benign thyroid nodules (TNs). Additionally, to study if iodine status influences the outcomes. Methods: A total of 23 euthyroid patients (42 TNs) with benign thyroid nodules, diagnosed by fine needle aspiration biopsy...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章
doi:10.3389/fendo.2019.00465
更新日期:2019-07-17 00:00:00
abstract::Last two decades of structure-function studies performed in numerous laboratories provided substantial progress in understanding basic science, physiological, pathophysiological, pharmacological, and comparative aspects of glycoprotein hormones (GPHs) and their cognate receptors. Multiple concepts and models developed...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,评审
doi:10.3389/fendo.2015.00155
更新日期:2015-10-19 00:00:00
abstract::[This corrects the article DOI: 10.3389/fendo.2017.00018.]. ...
journal_title:Frontiers in endocrinology
pub_type: 杂志文章,已发布勘误
doi:10.3389/fendo.2018.00395
更新日期:2018-07-18 00:00:00