Curcumin downregulates 8-br-cAMP-induced steroidogenesis in mouse Leydig cells by suppressing the expression of Cyp11a1 and StAR independently of the PKA-CREB pathway.

Abstract:

:Although curcumin was widely applied as a functional food for different diseases, it was found to reduce serum testosterone level and fertility in male animals by unknown molecular mechanisms. Here in our study, we investigated the possible mechanisms of curcumin-suppressed testosterone production in Leydig cells. Our enzyme immunoassay results showed that curcumin cell-autonomously suppressed ovine luteinizing hormone-stimulated testosterone production in primary Leydig cells and 8-bromo-cyclic adenosine monophosphate (8-br-cAMP)-induced progesterone production in MA-10 cells. Furthermore, our real-time PCR, Western blot, and 22R-OHC/pregnenolone supplementing experiment data demonstrated that curcumin suppressed 8-br-cAMP-induced steroidogenesis in Leydig cells by inhibiting the expression of StAR and Cyp11a1. Interestingly, our Western blot data showed that although curcumin suppressed PKA activity, it did not alter the 8-br-cAMP-induced phosphorylation of CREB. On the contrary, the real-time PCR results showed that curcumin suppressed 8-br-cAMP-induced expression of Nr5a1 and Fos, which are crucial for cAMP-stimulated StAR and Cyp11a1 expression in Leydig cells. Collectively, our data demonstrated that curcumin may suppress cAMP-induced steroidogenesis in mouse Leydig cells by down-regulating Nr5a1/Fos-controlled StAR and Cyp11a1 expression independently of the PKA-CREB signaling pathway.

journal_name

Endocr J

journal_title

Endocrine journal

authors

Lin YC,Chiu CH,Liu HC,Wang JY

doi

10.1507/endocrj.EJ18-0010

subject

Has Abstract

pub_date

2018-08-27 00:00:00

pages

833-840

issue

8

eissn

0918-8959

issn

1348-4540

journal_volume

65

pub_type

杂志文章
  • Liquid liothyronine to obtain target TSH in differentiated thyroid cancer patients.

    abstract::In the last ten years a liquid formulation of liothyronine (L-T3) became available. To date, no studies on its systematic use have been reported. This study is aimed at assessing the reliability of liquid L-T3 in achieving target TSH in patients with differentiated thyroid cancers (DTC). Twenty-one high risk DTC patie...

    journal_title:Endocrine journal

    pub_type: 临床试验,杂志文章

    doi:10.1507/endocrj.EJ16-0040

    authors: Trimboli P,Centanni M,Virili C

    更新日期:2016-06-30 00:00:00

  • False-positive staining of thyroglobulin distinguished from mixed medullary and follicular thyroid carcinoma by duplex in situ hybridization.

    abstract::Medullary thyroid carcinoma (MTC) may mimic mixed medullary and follicular thyroid carcinoma (MMFTC). MTC originates from para-follicular cells, while MMFTC is an uncommon tumor characterized by coexistence of follicular and para-follicular cell-derived tumor populations. A 35-year-old woman was diagnosed with MTC but...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ20-0169

    authors: Takeshima K,Ariyasu H,Uraki S,Morita S,Furukawa Y,Inaba H,Iwakura H,Doi A,Warigaya K,Murata SI,Enomoto K,Hotomi M,Akamizu T

    更新日期:2020-10-28 00:00:00

  • A somatotropin-producing pituitary adenoma with an isolated adrenocorticotropin-producing pituitary adenoma in a female patient with acromegaly, subclinical Cushing's disease and a left adrenal tumor.

    abstract::A 67-year-old female with hypertension and impaired glucose tolerance was admitted to our hospital because of a typical acromegalic appearance, including large, thickened bulky hands and feet, and a large prominent forehead and tongue. She did not have a Cushingoid appearance, such as a moon-face, buffalo hump, purple...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.ej14-0093

    authors: Kobayashi Y,Takei M,Ohkubo Y,Kakizawa Y,Matoba H,Kumagai M,Takeda T,Suzuki S,Komatsu M

    更新日期:2014-01-01 00:00:00

  • Pioglitazone improves endothelial function with increased adiponectin and high-density lipoprotein cholesterol levels in type 2 diabetes.

    abstract::Endothelial dysfunction is considered to be an early event in the development of atherosclerosis. The present study was undertaken to evaluate endothelial function and biochemical markers in type 2 diabetes mellitus (T2DM) patients before and after treatment with or without pioglitazone (PIO). Forty-one T2DM patients ...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.k08e-308

    authors: Tsuchiya K,Akaza I,Yoshimoto T,Hirata Y

    更新日期:2009-01-01 00:00:00

  • Establishment of diagnosis by bisulfite-treated methylation-specific PCR method and analysis of clinical characteristics of pseudohypoparathyroidism type 1b.

    abstract::Pathogenesis of pseudohypoparathyroidism type 1b (PHP-1b) is related to the loss of methylation at the GNAS exon A/B region, which is combined with epigenetic defects at other differentially methylated GNAS regions in most sporadic cases. In this study, we established a method for evaluating the methylation status of...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.k10e-364

    authors: Kinoshita K,Minagawa M,Takatani T,Takatani R,Ohashi M,Kohno Y

    更新日期:2011-01-01 00:00:00

  • High prevalence of carcinoma in ultrasonography-guided fine needle aspiration cytology of thyroid nodules.

    abstract:OBJECTIVE:The purpose of this study was to assess the rate of malignancy in thyroid nodules incidentally detected at sonography and to determine the diagnostic value of ultrasonography-guided fine needle aspiration cytology (USgFNAC) in thyroid nodules. METHODS:Five hundred patients (84 men and 416 women) who had thyr...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.k07-120

    authors: Kim DL,Song KH,Kim SK

    更新日期:2008-03-01 00:00:00

  • Blocking type anti-tSH receptor antibodies detected by radioreceptor assay in Graves' disease.

    abstract::We previously developed a radioreceptor assay which is presumably specific for detection of blocking-type anti-TSH receptor (TSHR) antibodies using unsolubilized porcine TSHR. Employing this assay, we measured blocking TSH-binding inhibitory immunoglobulin (TBII) in the sera from 30 untreated Graves' patients and comp...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.48.703

    authors: Tada H,Izumi Y,Watanabe Y,Takano T,Fukata S,Kuma K,Hidaka Y,Amino N

    更新日期:2001-12-01 00:00:00

  • Increase in Pit-1 mRNA is not required for the estrogen-induced expression of prolactin gene and lactotroph proliferation.

    abstract::Estrogen has been shown to stimulate lactotroph proliferation and expression of the prolactin (PRL) gene. Recently it has been established that Pit-1, a pituitary-specific transcription factor, is required for lactotroph proliferation. Furthermore, in vitro studies showed that an increase in the PRL promoter activity ...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.41.579

    authors: Tsukahara S,Kambe F,Suganuma N,Tomoda Y,Seo H

    更新日期:1994-10-01 00:00:00

  • Improvement of lymph node recurrence rate, but not distant recurrence and carcinoma death rates, in patients with papillary thyroid carcinoma after disease-free survival for 5 years.

    abstract::In this study, we investigated the difference in lymph node-recurrence free survival (LN-RFS), distant recurrence-free survival (DRFS), and cause-specific survival (CSS) between patients with papillary thyroid carcinoma (PTC) in the entire group (Group I) and those with lymph node- and distant-recurrence-free survival...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.ej12-0176

    authors: Ito Y,Kudo T,Kihara M,Takamura Y,Kobayashi K,Miya A,Miyauchi A

    更新日期:2012-01-01 00:00:00

  • Pioglitazone reduces ER stress in the liver: direct monitoring of in vivo ER stress using ER stress-activated indicator transgenic mice.

    abstract::It is known that endoplasmic reticulum (ER) stress is provoked under diabetic conditions and is possibly involved in the development of insulin resistance. In this study, using ER stress-activated indicator (ERAI) transgenic mice which express green fluorescent protein under ER stress conditions, we directly evaluated...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.k09e-140

    authors: Yoshiuchi K,Kaneto H,Matsuoka TA,Kasami R,Kohno K,Iwawaki T,Nakatani Y,Yamasaki Y,Shimomura I,Matsuhisa M

    更新日期:2009-01-01 00:00:00

  • Influence of thyroid dysfunction on brain natriuretic peptide level in health examination participants.

    abstract::The tissue-specific circulating markers of thyroid hormone action on cardiac function have not been established. Although the relationship between thyroid function and plasma brain natriuretic peptide (BNP) levels has been evaluated in patients with thyroid disorders, the relationship between these parameters in the g...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ19-0380

    authors: Ohba K,Okada E,Goto Y,Suzuki S,Machii M,Nonaka D,Matsushita A,Sasaki S,Suda T,Oki Y,Takase H

    更新日期:2020-04-28 00:00:00

  • Immunohistochemical localization of growth factor-regulated channel (GRC) in human tissues.

    abstract::Insulin-like growth factor-I activates a calcium-permeable cation channel GRC (growth factor-regulated channel). In the present study, we investigated the immunohistochemical localization of GRC in human tissues using a polyclonal anti-GRC antibody. Immunoreactive GRC was detected in the stomach, duodenum, large intes...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.49.349

    authors: Kowase T,Nakazato Y,Yoko-O H,Morikawa A,Kojima I

    更新日期:2002-06-01 00:00:00

  • Diagnostic significance of apical membranous and cytoplasmic dot-like CD26 expression in encapsulated follicular variant of papillary thyroid carcinoma: a useful marker for capsular invasion.

    abstract::Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) and invasive encapsulated follicular variant of papillary thyroid carcinoma (EFV-PTC) are indistinguishable preoperatively. CD26 expression in follicular tumor-uncertain malignant potential (FT-UMP) is reported to be clearly higher t...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ19-0501

    authors: Takagi S,Hirokawa M,Nagashima K,Higuchi M,Kadota K,Ishikawa R,Sato M,Miyauchi A,Miyake Y,Haba R

    更新日期:2020-12-28 00:00:00

  • Serum irisin and its regulation by hyperinsulinemia in women with polycystic ovary syndrome.

    abstract::Irisin is an adipokine/myokine which could be connected with insulin sensitivity. Polycystic ovary syndrome (PCOS) is characterized by oligo- or anovulation, polycystic ovary, hyperandrogenism and insulin resistance. The aim of the present study was to determine the relationship between serum irisin concentration and ...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ16-0249

    authors: Adamska A,Karczewska-Kupczewska M,Lebkowska A,Milewski R,Górska M,Otziomek E,Nikolajuk A,Wolczynski S,Kowalska I

    更新日期:2016-12-30 00:00:00

  • Efficacy and safety of long-term insulin pump treatment in patients with type 1 diabetes aged over 50 years.

    abstract::Continuous subcutaneous insulin infusion (CSII) therapy using insulin pumps has become widely used in the treatment of type 1 diabetes mellitus (T1DM). This retrospective study aimed to assess the efficacy and safety of long-term insulin pump treatment in patients with T1DM aged ≥50 years. The study included patients ...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ19-0188

    authors: Matejko B,Krzyżowska S,Kieć-Wilk B,Malecki MT,Klupa T

    更新日期:2020-03-28 00:00:00

  • The hypoglycemia associated autonomic failure triggered by exercise in the patients with "brittle" diabetes and the strategy for prevention.

    abstract::Exercise is a fundamental component of diabetes management. However, choosing inappropriate type or timing of exercise is associated with mild or severe hypoglycemia either during exercise or several hours after exercise. Several studies have shown that impaired counterregulatory responses triggers hypoglycemia. There...

    journal_title:Endocrine journal

    pub_type: 杂志文章,评审

    doi:10.1507/endocrj.EJ19-0153

    authors: Mao Y,Wen S,Zhou M,Zhu S,Zhou L

    更新日期:2019-09-28 00:00:00

  • Unilateral adrenalectomy can be an alternative therapy for infantile onset Cushing' s syndrome caused by ACTH-independent macronodular adrenal hyperplasia with McCune-Albright syndrome.

    abstract::We report herein the case of a 1-year-old boy with McCune-Albright syndrome (MAS) who presented with infantile-onset Cushing' s syndrome caused by ACTH independent macronodular adrenal hyperplasia (AIMAH). Abdominal CT, MRI, and adrenal scintigraphy with (131)I-adosterol identified bilateral adrenal involvement with t...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.k10e-003

    authors: Hamajima T,Maruwaka K,Homma K,Matsuo K,Fujieda K,Hasegawa T

    更新日期:2010-01-01 00:00:00

  • Effect of octreotide treatment on Graves' ophthalmopathy.

    abstract::In this study, nine patients with Graves' ophthalmopathy with positive clinical activity score (CAS), who were either unresponsive or not suitable for glucocorticoid treatment, were given 100 microg of octreotide three times daily, subcutaneously, for three months. The mean age was 49+/-13 years. All patients were und...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.46.573

    authors: Uysal AR,Corapçioğlu D,Tonyukuk VC,Güllü S,Sav H,Kamel N,Erdoğan G

    更新日期:1999-08-01 00:00:00

  • Nucleobindin-2 is a positive regulator for insulin-stimulated glucose transporter 4 translocation in fenofibrate treated E11 podocytes.

    abstract::The physiology of insulin signaling under normal and disease conditions is well studied in classical insulin target tissues, but not in podocytes. To examine insulin stimulation of podocyte GLUT4 translocation, we established a protocol involving treatment with the PPARα agonist fenofibrate to induce E11 podocyte diff...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.ej14-0330

    authors: Saito T,Yamada E,Okada S,Shimoda Y,Tagaya Y,Hashimoto K,Satoh T,Mori M,Okada J,Pessin JE,Yamada M

    更新日期:2014-01-01 00:00:00

  • Efficiency of stem cell based therapy in the treatment of diabetic foot ulcer: a meta-analysis.

    abstract::Diabetic foot ulcer is a chronic, refractory, frequent complication in diabetic patient. Its treatment often requires multidisciplinary joint efforts, diverse strategies have been adopted to address this annoying issue, including stem cell-based therapy/acellular dermal matrix/negative pressure wound therapy etc. Howe...

    journal_title:Endocrine journal

    pub_type: 杂志文章,meta分析

    doi:10.1507/endocrj.EJ17-0424

    authors: Shu X,Shu S,Tang S,Yang L,Liu D,Li K,Dong Z,Ma Z,Zhu Z,Din J

    更新日期:2018-04-26 00:00:00

  • Preoperative diagnosis of thyroid carcinomas by aspiration biopsy-reverse transcription-polymerase chain reaction (ABRP): a report of two cases.

    abstract::A preoperative molecular-based diagnostic technique for thyroid papillary and anaplastic carcinomas was recently developed to detect oncofetal fibronectin (onfFN) messenger RNA (mRNA) in fine needle aspiration biopsy (FNAB) by means of reverse transcription-polymerase chain reaction (RT-PCR). We report two cases of th...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.47.271

    authors: Takano T,Shiba E,Tada H,Yoshimura H,Yoshida K,Doi R,Amino N

    更新日期:2000-06-01 00:00:00

  • Characterization of plasma brain natriuretic peptide level in patients with type 2 diabetes.

    abstract::This study investigates whether the plasma brain natriuretic peptide (BNP) level is increased by the clinical traits of diabetes, including its complications, and whether these levels are affected by the presence of other combined diseases such as hypertension, hyperlipidemia, and coronary heart disease (CHD) in patie...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.52.353

    authors: Igarashi M,Jimbu Y,Hirata A,Tominaga M

    更新日期:2005-06-01 00:00:00

  • Prognosis and growth activity depend on patient age in clinical and subclinical papillary thyroid carcinoma.

    abstract::In this review, we focused on the patient age as an indicator of tumor growth and prognostic significance in both clinical papillary thyroid carcinoma (PTC) and subclinical papillary microcarcinoma (PMC: PTC ≤ 1 cm). In clinical PTC, young age (< 30 years) and old age (≥ 60 years) significantly affected the disease-fr...

    journal_title:Endocrine journal

    pub_type: 杂志文章,评审

    doi:10.1507/endocrj.ej13-0403

    authors: Ito Y,Miyauchi A,Kobayashi K,Miya A

    更新日期:2014-01-01 00:00:00

  • The effect of MTHFR C677T polymorphism on type 2 diabetes mellitus with vascular complications in Chinese Han population: a meta-analysis.

    abstract::Methylenetetrahydrofolate reductase plays an important role in folate metabolism. Individuals who are type 2 diabetes mellitus have greatest risk for the development of vascular complications. The results of studies which assessed the association between MTHFR C677T polymorphism and T2DM with vascular complications we...

    journal_title:Endocrine journal

    pub_type: 杂志文章,meta分析

    doi:10.1507/endocrj.ej14-0071

    authors: Zhang D,Zhou Y,Han L,Ji H,Li J

    更新日期:2014-01-01 00:00:00

  • Gene expression profiles of recurrent acute pancreatitis risk in patients with sustained chylomicronemia.

    abstract::A fasting triglyceridemia >10 mmol/L is associated with chylomicronemia (CM) and an increased recurrent acute pancreatitis (RAP) risk. The number of pancreatitis episodes varies significantly between patients with CM. The objective of this study was to investigate gene expression profiles of RAP in patients with CM. A...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ20-0123

    authors: Tremblay K,Brisson D,Gaudet D

    更新日期:2020-11-28 00:00:00

  • High circulating follistatin-like protein 1 as a biomarker of a metabolically unhealthy state.

    abstract::The inflammatory biomarkers that fully characterize the metabolically unhealthy (MU) state-which is a risk factor for cardiovascular disease (CVD)-remain unclear. Recent studies suggest follistatin-like protein 1 (FSTL1) could be used as a biomarker for inflammation and CVD, however there is little information on FSTL...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ18-0352

    authors: Lee SY,Kim DY,Kyung Kwak M,Hee Ahn S,Kim H,Kim BJ,Koh JM,Rhee Y,Hwa Kim C,Hyun Baek K,Min YK,Hun Lee S,Kang MI

    更新日期:2019-03-28 00:00:00

  • Simvastatin rescues homocysteine-induced apoptosis of osteocytic MLO-Y4 cells by decreasing the expressions of NADPH oxidase 1 and 2.

    abstract::Clinical studies have shown that hyperhomocysteinemia is associated with bone fragility. Homocysteine (Hcy) induces apoptosis of osteoblastic cell lineage by increasing oxidative stress, which may contribute to Hcy-induced bone fragility. Statins, 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, ameliorate ...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ15-0480

    authors: Takeno A,Kanazawa I,Tanaka K,Notsu M,Yokomoto-Umakoshi M,Sugimoto T

    更新日期:2016-04-25 00:00:00

  • Anti-alpha-enolase antibodies in pituitary disease.

    abstract::A previous study reported a high prevalence of autoantibodies to alpha-enolase in lymphocytic hypophysitis and these antibodies efficiently distinguished lymphocytic hypophysitis from pituitary tumors. To confirm this, we examined autoantibodies to alpha-enolase in patients with lymphocytic hypophysitis (n = 17), pitu...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.50.697

    authors: Tanaka S,Tatsumi KI,Takano T,Murakami Y,Takao T,Yamakita N,Tahara S,Teramoto A,Hashimoto K,Kato Y,Amino N

    更新日期:2003-12-01 00:00:00

  • High insulin impaired ovarian function in early pregnant mice and the role of autophagy in this process.

    abstract::Metabolic disorders, such as PCOS (polycystic ovarian syndrome) and T2DM (type 2 diabetes mellitus), are associated with menstrual dysfunction, anovulation, infertility, and early pregnancy loss. Ovarian dysfunction is not only related to low pregnancy rates but also to the increased risk of miscarriage. Women with PC...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.EJ16-0494

    authors: Su Y,Wu J,He J,Liu X,Chen X,Ding Y,Zhang C,Chen W,Wang Y,Gao R

    更新日期:2017-06-29 00:00:00

  • Inappropriate elevation of intact PTH in the presence of normocalcemia after successful surgery for primary hyperparathyroidism.

    abstract::We describe here a patient with primary hyperparathyroidism who had high serum intact PTH levels for over 16 months after parathyroidectomy without signs of recurrence or persistence of the disease. The patient was a 48-year-old female who appeared well nourished (body mass index, 23.7). She was received subtotal gast...

    journal_title:Endocrine journal

    pub_type: 杂志文章

    doi:10.1507/endocrj.45.609

    authors: Mimura Y,Kanauchi H,Ogawa T,Ohkura F,Kaminishi M

    更新日期:1998-10-01 00:00:00