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Yan Z, Luo J, Wang Y, Yang J, Su M, Jiang L, Yang J, Dai M, Liu A. PPARα suppresses low-intensity-noise-induced body weight gain in mice: the activated HPA axis plays an critical role. Int J Obes (Lond) 2024; 48:1274-1282. [PMID: 38902386 DOI: 10.1038/s41366-024-01550-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND As the second most risky environmental pollution, noise imposes threats to human health. Exposure to high-intensity noise causes hearing impairment, psychotic disorders, endocrine modifications. The relationship among low-intensity noise, obesity and lipid-regulating nuclear factor PPARα is not yet clear. METHODS In this study, male wild-type (WT) and Pparα-null (KO) mice on a high-fat diet (HFD) were exposed to 75 dB noise for 12 weeks to explore the effect of low-intensity noise on obesity development and the role of PPARα. 3T3-L1 cells were treated with dexamethasone (DEX) and sodium oleate (OA) to verify the down-stream effect of hypothalamic-pituitary-adrenal (HPA) axis activation on the adipose tissues. RESULTS The average body weight gain (BWG) of WT mice on HFD exposed to noise was inhibited, which was not observed in KO mice. The mass and adipocyte size of adipose tissues accounted for the above difference of BWG tendency. In WT mice on HFD, the adrenocorticotropic hormone level was increased by the noise challenge. The aggravation of fatty liver by noise exposure occurred in both mouse lines, and the transport of hepatic redundant lipid to adipose tissues were similar. The lipid metabolism in adipose tissue driven by HPA axis accorded with the BWG inhibition in vivo, validated in 3T3-L1 adipogenic stem cells. CONCLUSION Chronic exposure to low-intensity noise aggravated fatty liver in both WT and KO mice. BWG inhibition was observed only in WT mice, which covered up the aggravation of fatty liver by noise exposure. PPARα mediates the activation of HPA axis by noise exposure in mice on HFD. Elevated adrenocorticotropic hormone (ACTH) promoted lipid metabolism in adipocytes, which contributed to the disassociation of BWG and fatty liver development in male WT mice. Summary of PPARα suppresses noise-induced body weight gain in mice on high-fat-diet. Chronic exposure to low-intensity noise exposure inhibited BWG by PPARα-dependent activation of the HPA axis.
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Affiliation(s)
- Zheng Yan
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Jia Luo
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Ying Wang
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Jie Yang
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Mingli Su
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Lei Jiang
- Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Julin Yang
- Department of Basic Nutrition, Ningbo College of Health Sciences, Ningbo, 315211, China
| | - Manyun Dai
- Health Science Center, Ningbo University, Ningbo, 315211, China.
| | - Aiming Liu
- Health Science Center, Ningbo University, Ningbo, 315211, China.
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Nawaz K, Alifah N, Hussain T, Hameed H, Ali H, Hamayun S, Mir A, Wahab A, Naeem M, Zakria M, Pakki E, Hasan N. From genes to therapy: A comprehensive exploration of congenital heart disease through the lens of genetics and emerging technologies. Curr Probl Cardiol 2024; 49:102726. [PMID: 38944223 DOI: 10.1016/j.cpcardiol.2024.102726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Congenital heart disease (CHD) affects approximately 1 % of live births worldwide, making it the most common congenital anomaly in newborns. Recent advancements in genetics and genomics have significantly deepened our understanding of the genetics of CHDs. While the majority of CHD etiology remains unclear, evidence consistently indicates that genetics play a significant role in its development. CHD etiology holds promise for enhancing diagnosis and developing novel therapies to improve patient outcomes. In this review, we explore the contributions of both monogenic and polygenic factors of CHDs and highlight the transformative impact of emerging technologies on these fields. We also summarized the state-of-the-art techniques, including targeted next-generation sequencing (NGS), whole genome and whole exome sequencing (WGS, WES), single-cell RNA sequencing (scRNA-seq), human induced pluripotent stem cells (hiPSCs) and others, that have revolutionized our understanding of cardiovascular disease genetics both from diagnosis perspective and from disease mechanism perspective in children and young adults. These molecular diagnostic techniques have identified new genes and chromosomal regions involved in syndromic and non-syndromic CHD, enabling a more defined explanation of the underlying pathogenetic mechanisms. As our knowledge and technologies continue to evolve, they promise to enhance clinical outcomes and reduce the CHD burden worldwide.
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Affiliation(s)
- Khalid Nawaz
- Department of Medical Laboratory Technology, Khyber Medical University, Peshawar, 25100, Khyber Pakhtunkhwa, Pakistan
| | - Nur Alifah
- Faculty of Pharmacy, Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km 10, Makassar, 90245, Republic of Indonesia
| | - Talib Hussain
- Women Dental College, Khyber Medical University, Abbottabad, 22080, Khyber Pakhtunkhwa, Pakistan
| | - Hamza Hameed
- Department of Cardiology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, 04485, Punjab, Pakistan
| | - Haider Ali
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Shah Hamayun
- Department of Cardiology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, 04485, Punjab, Pakistan
| | - Awal Mir
- Department of Medical Laboratory Technology, Khyber Medical University, Peshawar, 25100, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Wahab
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Naeem
- Department of Biological Sciences, National University of Medical Sciences (NUMS), Rawalpindi, Punjab, Pakistan
| | - Mohammad Zakria
- Advanced Center for Genomic Technologies, Khyber Medical University, Peshawar, 25100, Khyber Pakhtunkhwa, Pakistan
| | - Ermina Pakki
- Faculty of Pharmacy, Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km 10, Makassar, 90245, Republic of Indonesia
| | - Nurhasni Hasan
- Faculty of Pharmacy, Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km 10, Makassar, 90245, Republic of Indonesia.
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Wang L, Wan J, Xu Y, Huang Y, Wang D, Zhu D, Chen Q, Lu Y, Guo Q. Endothelial Cells Promote Pseudo-islet Function Through BTC-EGFR-JAK/STAT Signaling Pathways. Ann Biomed Eng 2024; 52:2610-2626. [PMID: 38829457 DOI: 10.1007/s10439-024-03548-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 05/20/2024] [Indexed: 06/05/2024]
Abstract
Interactions between cells are of fundamental importance in affecting cell function. In vivo, endothelial cells and islet cells are close to each other, which makes endothelial cells essential for islet cell development and maintenance of islet cell function. We used endothelial cells to construct 3D pseudo-islets, which demonstrated better glucose regulation and greater insulin secretion compared to conventional pseudo-islets in both in vivo and in vitro trials. However, the underlying mechanism of how endothelial cells promote beta cell function localized within islets is still unknown. We performed transcriptomic sequencing, differential gene analysis, and enrichment analysis on two types of pseudo-islets to show that endothelial cells can promote the function of internal beta cells in pseudo-islets through the BTC-EGFR-JAK/STAT signaling pathway. Min6 cells secreted additional BTC after co-culture of endothelial cells with MIN6 cells outside the body. After BTC knockout in vitro, we found that beta cells functioned differently: insulin secretion levels decreased significantly, while the expression of key proteins in the EGFR-mediated JAK/STAT signaling pathway simultaneously decreased, further confirming our results. Through our experiments, we elucidate the molecular mechanisms by which endothelial cells maintain islet function in vitro, which provides a theoretical basis for the construction of pseudo-islets and islet cell transplants for the treatment of diabetes mellitus.
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Affiliation(s)
- Lin Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Jian Wan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Yang Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Yan Huang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Dongzhi Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Donghui Zhu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Qiyang Chen
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China
| | - Yuhua Lu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China.
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Qingsong Guo
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, China.
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
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Gruson D, Hammerer-Lercher A, Collinson P, Duff C, Baum H, Pulkki K, Suvisaari J, Stankovic S, Laitinen P, Bayes-Genis A. The multidimensional value of natriuretic peptides in heart failure, integrating laboratory and clinical aspects. Crit Rev Clin Lab Sci 2024; 61:458-472. [PMID: 38523480 DOI: 10.1080/10408363.2024.2319578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/15/2024] [Accepted: 02/13/2024] [Indexed: 03/26/2024]
Abstract
Natriuretic peptides (NP) play an essential role in heart failure (HF) regulation, and their measurement has improved diagnostic and prognostic accuracy. Clinical symptoms and objective measurements, such as NP levels, should be included in the HF definition to render it more reliable and consistent among observers, hospitals, and healthcare systems. BNP and NT-proBNP are reasonable surrogates for cardiac disease, and their measurement is critical to early diagnosis and risk stratification of HF patients. NPs should be measured in all patients presenting with dyspnea or other symptoms suggestive of HF to facilitate early diagnosis and risk stratification. Both BNP and NT-proBNP are currently used for guided HF management and display comparable diagnostic and prognostic accuracy. Standardized cutoffs for each NP assay are essential for data comparison. The value of NP testing is recognized at various levels, including patient empowerment and education, analytical and operational issues, clinical HF management, and cost-effectiveness.
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Affiliation(s)
- Damien Gruson
- Pôle de recherche en Endocrinologie, Diabète et Nutrition, Institut de Recherche Expérimentale et Clinique, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium
- Department of Clinical Biochemistry, Cliniques Universitaires St-Luc and Université Catholique de Louvain, Brussels, Belgium
| | | | - Paul Collinson
- Department of Clinical Blood Science Chemical Pathology and Cardiology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Christopher Duff
- Department of Clinical Biochemistry, University Hospitals of North Midlands, Stoke-on-Trent, UK
| | - Hannsjörg Baum
- Department Laboratory Medicine, Regionale Kliniken Holding RKH, Ludwigsburg, Germany
| | - Kari Pulkki
- Clinical Chemistry and Hematology, Diagnostic Center, Helsinki University Hospital and the University of Helsinki, Helsinki, Finland
| | - Janne Suvisaari
- Clinical Chemistry and Hematology, Diagnostic Center, Helsinki University Hospital and the University of Helsinki, Helsinki, Finland
| | - Sanja Stankovic
- Center for Medical Biochemistry, University Clinical Center of Serbia, Belgrade, Serbia
- Department of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Paivi Laitinen
- Center for Medical Biochemistry, University Clinical Center of Serbia, Belgrade, Serbia
| | - Antoni Bayes-Genis
- Germans Trias Heart Institute (iCor), Pujol, Universitat Autònoma de Barcelona; CIBERCV, Barcelona, Spain
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205
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Blair HA. Insulin Icodec: First Approval. BioDrugs 2024; 38:717-724. [PMID: 39031321 DOI: 10.1007/s40259-024-00670-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Insulin icodec (AWIQLI®) is an ultra-long-acting basal insulin analogue that is being developed by Novo Nordisk for the treatment of diabetes mellitus. Administered once weekly as a subcutaneous injection, insulin icodec is designed to improve treatment adherence and glycaemic control relative to once-daily insulin analogues. On 7 March 2024, insulin icodec was approved in Switzerland for the treatment of diabetes mellitus in adults. Insulin icodec was approved in Canada on 12 March 2024 for the once-weekly treatment of adults with diabetes mellitus to improve glycaemic control and received EU approval in May 2024 for the treatment of diabetes mellitus in adults. This article summarizes the milestones in the development of insulin icodec leading to this first approval for diabetes mellitus.
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Affiliation(s)
- Hannah A Blair
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand.
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206
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Hirota Y, Kakei Y, Imai J, Katagiri H, Ebihara K, Wada J, Suzuki J, Urakami T, Omori T, Ogawa W. A multicenter, open-label, single-arm trial of the long-term safety of empagliflozin treatment for refractory diabetes mellitus with insulin resistance (EMPIRE-02). J Diabetes Investig 2024; 15:1211-1219. [PMID: 38702973 DOI: 10.1111/jdi.14226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/26/2024] [Accepted: 04/17/2024] [Indexed: 05/06/2024] Open
Abstract
AIMS/INTRODUCTION Insulin resistance syndrome and lipoatrophic diabetes are rare conditions characterized by the development of treatment-refractory diabetes with severe insulin resistance. We recently conducted a 24 week, multicenter, single-arm trial (EMPIRE-01) that demonstrated a certain level of effectiveness and safety of empagliflozin for these conditions. To evaluate treatment safety over a longer period, we have now performed an additional 28 week trial (EMPIRE-02) that followed on from EMPIRE-01. MATERIALS AND METHODS The primary and secondary outcomes were safety and efficacy evaluations, respectively. All eight subjects of the EMPIRE-01 trial participated in EMPIRE-02. RESULTS Twenty adverse events (AEs) were recorded among five individuals during the combined 52 week treatment period of both trials. Whereas one case of chronic hepatitis B was moderate in severity, all other AEs were mild. There were thus no serious AEs or events necessitating discontinuation or suspension of treatment or a reduction in drug dose. Whereas ketoacidosis or marked increases in serum ketone body levels were not observed, the mean body mass of the subjects was decreased slightly after completion of EMPIRE-02. The improvement in mean values of glycemic parameters observed in EMPIRE-01 was not sustained in EMPIRE-02, mostly because of one individual whose parameters deteriorated markedly, likely as a result of nonadherence to diet therapy. The improvement in glycemic parameters was sustained during EMPIRE-02 after exclusion of this subject from analysis. CONCLUSIONS Empagliflozin demonstrated a certain level of safety and efficacy for the treatment of insulin resistance syndrome and lipoatrophic diabetes over 52 weeks, confirming its potential as a therapeutic option.
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Affiliation(s)
- Yushi Hirota
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasumasa Kakei
- Clinical and Translational Research Center, Kobe University Hospital, Kobe, Japan
| | - Junta Imai
- Department of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Hideki Katagiri
- Department of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Ken Ebihara
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Jichi Medical University, Tochigi, Japan
| | - Jun Wada
- Department of Nephrology, Rheumatology, Endocrinology, and Metabolism, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Junichi Suzuki
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Tatsuhiko Urakami
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Takashi Omori
- Division of Clinical Biostatistics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Tian L, Andrews C, Yan Q, Yang JJ. Molecular regulation of calcium-sensing receptor (CaSR)-mediated signaling. Chronic Dis Transl Med 2024; 10:167-194. [PMID: 39027195 PMCID: PMC11252437 DOI: 10.1002/cdt3.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/29/2024] [Accepted: 04/09/2024] [Indexed: 07/20/2024] Open
Abstract
Calcium-sensing receptor (CaSR), a family C G-protein-coupled receptor, plays a crucial role in regulating calcium homeostasis by sensing small concentration changes of extracellular Ca2+, Mg2+, amino acids (e.g., L-Trp and L-Phe), small peptides, anions (e.g., HCO3 - and PO4 3-), and pH. CaSR-mediated intracellular Ca2+ signaling regulates a diverse set of cellular processes including gene transcription, cell proliferation, differentiation, apoptosis, muscle contraction, and neuronal transmission. Dysfunction of CaSR with mutations results in diseases such as autosomal dominant hypocalcemia, familial hypocalciuric hypercalcemia, and neonatal severe hyperparathyroidism. CaSR also influences calciotropic disorders, such as osteoporosis, and noncalciotropic disorders, such as cancer, Alzheimer's disease, and pulmonary arterial hypertension. This study first reviews recent advances in biochemical and structural determination of the framework of CaSR and its interaction sites with natural ligands, as well as exogenous positive allosteric modulators and negative allosteric modulators. The establishment of the first CaSR protein-protein interactome network revealed 94 novel players involved in protein processing in endoplasmic reticulum, trafficking, cell surface expression, endocytosis, degradation, and signaling pathways. The roles of these proteins in Ca2+-dependent cellular physiological processes and in CaSR-dependent cellular signaling provide new insights into the molecular basis of diseases caused by CaSR mutations and dysregulated CaSR activity caused by its protein interactors and facilitate the design of therapeutic agents that target CaSR and other family C G-protein-coupled receptors.
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Affiliation(s)
- Li Tian
- Department of Chemistry, Center for Diagnostics and Therapeutics, Advanced Translational Imaging FacilityGeorgia State UniversityAtlantaGeorgiaUSA
| | - Corey Andrews
- Department of Chemistry, Center for Diagnostics and Therapeutics, Advanced Translational Imaging FacilityGeorgia State UniversityAtlantaGeorgiaUSA
| | - Qiuyun Yan
- Department of Chemistry, Center for Diagnostics and Therapeutics, Advanced Translational Imaging FacilityGeorgia State UniversityAtlantaGeorgiaUSA
| | - Jenny J. Yang
- Department of Chemistry, Center for Diagnostics and Therapeutics, Advanced Translational Imaging FacilityGeorgia State UniversityAtlantaGeorgiaUSA
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Williams ED, Rubio ME. Associations between diabetes mellitus and sensorineural hearing loss from humans and animal studies. Hear Res 2024; 450:109072. [PMID: 38936171 DOI: 10.1016/j.heares.2024.109072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 06/29/2024]
Abstract
There is controversy regarding the association and etiopathogenesis of diabetes mellitus (DM) and sensorineural hearing loss (SNHL). Some studies support that SNHL develops because of angiopathy and/or neuropathy caused by DM, but many of the findings have been inconsistent. This review aims to highlight a select number of studies that effectively describe the relationship between DM and SNHL, thus bringing more attention and awareness to this area of research. This review also describes animal models to understand better the mechanisms of DM contributing to SNHL in the inner ear. The goal of this narrative review is for researchers and healthcare professionals to further their understanding and investigation of the etiopathogenesis of both DM and SNHL, therefore leading to the development of effective treatments for diabetic patients displaying symptoms of SNHL.
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Affiliation(s)
- Essence DeVine Williams
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - María Eulalia Rubio
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.
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209
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Wang Y, Song Y, Peng Y, Han S, Qin C, Du Y, Xu T. Effects of androgen suppression therapy on the incidence and prognosis of bladder cancer: An updated systematic review and meta-analysis. Urol Oncol 2024; 42:266-274. [PMID: 38729866 DOI: 10.1016/j.urolonc.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/29/2024] [Accepted: 04/11/2024] [Indexed: 05/12/2024]
Abstract
INTRODUCTION The influence of androgen suppression therapy (AST) on bladder cancer (BCa) remains controversial, as recent studies have not reached a consensus regarding the relationship between AST and the incidence or prognosis of BCa. MATERIALS AND METHODS We perform an updated systematic review and meta-analysis utilizing the most recent evidence to investigate the potential influence of AST on the incidence and prognosis of BCa. A comprehensive literature search was performed on the PubMed, Medline, Embase, Web of Science, and the Cochrane Library databases to include potentially eligible studies. Hazard ratios (HR) and odds ratios (OR) were used to calculate the incidence and prognosis of BCa. RESULTS This meta-analysis included 22 studies with 700,755 participants which investigated the impact of AST on the risk and prognosis of BCa. The pooled results revealed no significant relation between AST and a decreased incidence of BCa (OR: 0.92, 95%CI: 0.77-1.09, P = 0.342). Subgroup analysis reported that patients receiving 5-alpha reductase inhibitors (5-ARIs) exhibited a significantly lower risk of BCa (OR: 0.83, 95%CI: 0.75-0.91, P < 0.001), while androgen deprivation therapy did not show a significant reduction (OR: 1.00, 95%CI: 0.46-2.16, P = 0.995). AST may also significantly improve the recurrence-free survival of patients with BCa (HR: 0.69, 95%CI: 0.50-0.95, P = 0.023). We also detected a significant improvement in OS among BCa patients who received 5-ARIs compared to those without 5-ARIs (HR: 0.82, 95%CI: 0.68-0.99, P = 0.037). CONCLUSION No significant correlation was found between AST and a decreased BCa incidence, while 5-ARIs have demonstrated efficacy in reducing BCa occurrence. Moreover, patients who received AST demonstrated improved prognosis.
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Affiliation(s)
- Yulong Wang
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Yuxuan Song
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Yun Peng
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Songchen Han
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Caipeng Qin
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Yiqing Du
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China
| | - Tao Xu
- Department of Urology, Peking University People's Hospital, Beijing 100044, China; The Institute of Applied Lithotripsy Technology, Peking University People's Hospital, Beijing 100044, China.
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Kamboj S, Guerra-Bauman F, Mahmud H, Waheed A. Neuroendocrine Neoplasms. Prim Care 2024; 51:549-560. [PMID: 39067978 DOI: 10.1016/j.pop.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Neuroendocrine neoplasms (NENs), also known as neuroendocrine tumors (NETs), are rare tumors derived from cells with characteristics of both nerve and endocrine cells. The clinical presentation, diagnosis, and treatment of NENs vary significantly depending on the type, location, whether the neoplasm is hormonally functional, how aggressive it is, and whether it has metastasized to other parts of the body. This article provides an overview of specific types of NETs, clinical presentations and related syndromes, diagnosis, and approach to management of common NENs.
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Affiliation(s)
- Sukhjeet Kamboj
- Department of Family Medicine, WellSpan Good Samaritan Hospital Family Medicine Residency Program, PO Box 1520, Lebanon, PA 17042, USA
| | - Francis Guerra-Bauman
- Department of Family Medicine, WellSpan Good Samaritan Hospital Family Medicine Residency Program, PO Box 1520, Lebanon, PA 17042, USA
| | - Hussain Mahmud
- Department of Medicine, Endocrinology Fellowship, University of Pittsburgh Medical College, UPMC Center for Endocrinology & Metabolism, 3601 5th Avenue, Falk Suite 3B, Pittsburgh, PA 15213, USA
| | - Abdul Waheed
- Department of Family Medicine, Dignity Health Medical Group/Creighton University SOM, Suite 2021, Gilbert, AZ 85297, USA.
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Huston CA, Milan M, Vance ML, Bickel MA, Miller LR, Negri S, Hibbs C, Vaden H, Hayes L, Csiszar A, Ungvari Z, Yabluchanskiy A, Tarantini S, Conley SM. The effects of time restricted feeding on age-related changes in the mouse retina. Exp Gerontol 2024; 194:112510. [PMID: 38964431 DOI: 10.1016/j.exger.2024.112510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/12/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Dietary modifications such as caloric restriction (CR) and intermittent fasting (IF) have gained popularity due to their proven health benefits in aged populations. In time restricted feeding (TRF), a form of intermittent fasting, the amount of time for food intake is regulated without restricting the caloric intake. TRF is beneficial for the central nervous system to support brain health in the context of aging. Therefore, we here ask whether TRF also exerts beneficial effects in the aged retina. We compared aged mice (24 months) on a TRF paradigm (access to food for six hours per day) for either 6 or 12 months against young control mice (8 months) and aged control mice on an ad libitum diet. We examined changes in the retina at the functional (electroretinography), structural (histology and fluorescein angiograms) and molecular (gene expression) level. TRF treatment showed amelioration of age-related reductions in both scotopic and photopic b-wave amplitudes suggesting benefits for retinal interneuron signaling. TRF did not affect age-related signs of retinal inflammation or microglial activation at either the molecular or histological level. Our data indicate that TRF helps preserve some aspects of retinal function that are decreased with aging, adding to our understanding of the health benefits that altered feeding patterns may confer.
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Affiliation(s)
- Cade A Huston
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Madison Milan
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Neuroscience and Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Michaela L Vance
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Marisa A Bickel
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Lauren R Miller
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sharon Negri
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Clara Hibbs
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Hannah Vaden
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Lindsay Hayes
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Anna Csiszar
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Neuroscience and Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine, Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Zoltan Ungvari
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Neuroscience and Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine, Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Andriy Yabluchanskiy
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Neuroscience and Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Stefano Tarantini
- Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Neuroscience and Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
| | - Shannon M Conley
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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212
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Yang Y, Yin X, Zhang Y, Ren L. Construction and validation of a predictive model for major adverse cardiovascular events in the long term after percutaneous coronary intervention in patients with acute ST-segment elevation myocardial infarction. Coron Artery Dis 2024; 35:471-480. [PMID: 38656258 DOI: 10.1097/mca.0000000000001370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
PURPOSE Construction of a prediction model to predict the risk of major adverse cardiovascular events (MACE) in the long term after percutaneous coronary intervention (PCI) in patients with acute ST-segment elevation myocardial infarction (STEMI). METHOD Retrospective analysis of STEMI patients treated with PCI from April 2018 to April 2021 in Fuyang People's Hospital. Lasso regression was used to screen the risk factors for the first occurrence of MACE in patients, and multifactorial logistic regression analysis was used to construct a prediction model. The efficacy was evaluated by area under the ROC curve (AUC), Hosmer-Lemeshow deviance test, calibration curve, clinical decision curve (DCA) and clinical impact curve (CIC). RESULTS Logistic regression results showed that hypertension, diabetes mellitus, left main plus three branches lesion, estimated glomerular filtration rate and medication adherence were influential factors in the occurrence of distant MACE after PCI in STEMI patients ( P < 0.05). The AUC was 0.849 in the modeling group and 0.724 in the validation group; the calibration curve had a good fit to the standard curve, and the result of the Hosmer-Lemeshow test of deviance was x 2 = 7.742 ( P = 0. 459); the DCA and the CIC indicated that the predictive model could provide a better net clinical benefit for STEMI patients. CONCLUSION A prediction model constructed from a total of five predictor variables, namely hypertension, diabetes, left main + three branches lesions, eGFR and medication adherence, can be used to assess the long-term prognosis after PCI in STEMI patients and help in early risk stratification of patients.
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Affiliation(s)
- Yangyang Yang
- Department of Cardiovascular Medicine, Fuyang People's Hospital Affiliated to Bengbu Medical College, Fuyang, China
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213
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Blume GR, Royes LFF. Peripheral to brain and hippocampus crosstalk induced by exercise mediates cognitive and structural hippocampal adaptations. Life Sci 2024; 352:122799. [PMID: 38852798 DOI: 10.1016/j.lfs.2024.122799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Endurance exercise leads to robust increases in memory and learning. Several exercise adaptations occur to mediate these improvements, including in both the hippocampus and in peripheral organs. Organ crosstalk has been becoming increasingly more present in exercise biology, and studies have shown that peripheral organs can communicate to the hippocampus and mediate hippocampal changes. Both learning and memory as well as other hippocampal functional-related changes such as neurogenesis, cell proliferation, dendrite morphology and synaptic plasticity are controlled by these exercise responsive peripheral proteins. These peripheral factors, also called exerkines, are produced by several organs including skeletal muscle, liver, adipose tissue, kidneys, adrenal glands and circulatory cells. Previous reviews have explored some of these exerkines including muscle-derived irisin and cathepsin B (CTSB), but a full picture of peripheral to hippocampus crosstalk with novel exerkines such as selenoprotein 1 (SEPP1) and platelet factor 4 (PF4), or old overlooked ones such as lactate and insulin-like growth factor 1 (IGF-1) is still missing. We provide 29 different studies of 14 different exerkines that crosstalk with the hippocampus. Thus, the purpose of this review is to explore peripheral exerkines that have shown to exert hippocampal function following exercise, demonstrating their particular effects and molecular mechanisms in which they could be inducing adaptations.
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Affiliation(s)
| | - Luiz Fernando Freire Royes
- Center in Natural and Exact Sciences, Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil; Physical Education and Sports Center, Department of Sports Methods and Techniques, Exercise Biochemistry Laboratory (BIOEX), Federal University of Santa Maria, Santa Maria, RS, Brazil.
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214
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Monteiro FL, Stepanauskaite L, Archer A, Williams C. Estrogen receptor beta expression and role in cancers. J Steroid Biochem Mol Biol 2024; 242:106526. [PMID: 38657699 DOI: 10.1016/j.jsbmb.2024.106526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/06/2024] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
Estrogen drives the growth of some cancers, such as breast cancer, via estrogen receptor alpha (ERα). Estrogen also activates ERβ, but whether ERβ is expressed and has a role in different cancers is debated. The use of nonspecific antibodies has contributed to the confusion, and this review delves into ERβ's controversial role in cancer and focuses on tumor expression that can be supported by non-antibody-dependent assays. We discuss its expression at the transcript level and focus on its potential role in lymphoma, granulosa cell tumors, testicular, and adrenal cancers, emphasizing recent findings and the complexities that necessitate further research.
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Affiliation(s)
- Fátima L Monteiro
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, Solna 171 21, Sweden; Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 141 83, Sweden
| | - Lina Stepanauskaite
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, Solna 171 21, Sweden; Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 141 83, Sweden
| | - Amena Archer
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, Solna 171 21, Sweden; Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 141 83, Sweden
| | - Cecilia Williams
- SciLifeLab, Department of Protein Science, KTH Royal Institute of Technology, Solna 171 21, Sweden; Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 141 83, Sweden.
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215
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Yesildemir O, Celik MN. The Effect of Various Environmental Pollutants on the Reproductive Health in Children: A Brief Review of the Literature. Curr Nutr Rep 2024; 13:382-392. [PMID: 38935249 PMCID: PMC11327209 DOI: 10.1007/s13668-024-00557-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2024] [Indexed: 06/28/2024]
Abstract
PURPOSE OF REVIEW Environmental pollutants in air, water, soil, and food are a significant concern due to their potential adverse effects on fetuses, newborns, babies, and children. These chemicals, which pass to fetuses and babies through trans-placental transfer, breast milk, infant formula, dermal transfer, and non-nutritive ingestion, can cause health problems during childhood. This review aims to discuss how exposure to various environmental pollutants in early life stages can disrupt reproductive health in children. RECENT FINDINGS Environmental pollutants can affect Leydig cell proliferation and differentiation, decreasing testosterone production throughout life. This may result in cryptorchidism, hypospadias, impaired semen parameters, and reduced fertility. Although many studies on female reproductive health cannot be interpreted to support causal relationships, exposure to pollutants during critical windows may subsequently induce female reproductive diseases, including early or delayed puberty, polycystic ovary syndrome, endometriosis, and cancers. There is growing evidence that fetal and early-life exposure to environmental pollutants could affect reproductive health in childhood. Although diet is thought to be the primary route by which humans are exposed to various pollutants, there are no adopted nutritional interventions to reduce the harmful effects of pollutants on children's health. Therefore, understanding the impact of environmental contaminants on various health outcomes may inform the design of future human nutritional studies.
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Affiliation(s)
- Ozge Yesildemir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Bursa Uludag University, 16059, Bursa, Türkiye.
| | - Mensure Nur Celik
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ondokuz Mayis University, 55200, Samsun, Türkiye
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216
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Silva B, Pereira CA, Cidade-Rodrigues C, Chaves C, Melo A, Gomes V, Silva VB, Araújo A, Machado C, Saavedra A, Figueiredo O, Martinho M, Almeida MC, Morgado A, Almeida M, Cunha FM. Development and internal validation of a clinical score to predict neonatal hypoglycaemia in women with gestational diabetes. Endocrine 2024; 85:1206-1212. [PMID: 38602617 DOI: 10.1007/s12020-024-03815-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 03/29/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Gestational diabetes (GD) is a risk factor for neonatal hypoglycaemia (NH), but other factors can increase this risk. OBJECTIVES To create a score to predict NH in women with GD. METHODS Retrospective study of women with GD with a live singleton birth between 2012 and 2017 from the Portuguese GD registry. Pregnancies with and without NH were compared. A logistic regression was used to study NH predictors. Variables independently associated with NH were used to score derivation. The model's internal validation was performed by a bootstrapping. The association between the score and NH was assessed by logistic regression. RESULTS We studied 10216 pregnancies, 410 (4.0%) with NH. The model's AUC was 0.628 (95%CI: 0.599-0.657). Optimism-corrected c-index: 0.626. Points were assigned to variables associated with NH in proportion to the model's lowest regression coefficient: insulin-treatment 1, preeclampsia 3, preterm delivery 2, male sex 1, and small-for-gestational-age 2, or large-for-gestational-age 3. NH prevalence by score category 0-1, 2, 3, 4, and ≥5 was 2.3%, 3.0%, 4.5%, 6.0%, 7.4%, and 11.5%, respectively. Per point, the OR for NH was 1.35 (95% CI: 1.27-1.42). A score of 2, 3, 4, 5 or ≥6 (versus ≤1) had a OR for NH of 1.67 (1.29-2.15), 2.24 (1.65-3.04), 2.83 (2.02-3.98), 3.08 (1.83-5.16), and 6.84 (4.34-10.77), respectively. CONCLUSION Per each score point, women with GD had 35% higher risk of NH. Those with ≥6 points had 6.8-fold higher risk of NH compared to a score ≤1. Our score may be useful for identifying women at a higher risk of NH.
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Affiliation(s)
- Bruna Silva
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal.
| | - Catarina A Pereira
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | | | - Catarina Chaves
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Anabela Melo
- Gynaecology and Obstetrics Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Vânia Gomes
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Vânia Benido Silva
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Alexandra Araújo
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Cláudia Machado
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Ana Saavedra
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Odete Figueiredo
- Gynaecology and Obstetrics Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Mariana Martinho
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Maria Céu Almeida
- Gynaecology and Obstetrics Department, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
| | - Ana Morgado
- Gynaecology and Obstetrics Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Margarida Almeida
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
| | - Filipe M Cunha
- Endocrinology Department, Centro Hospitalar Tâmega e Sousa, Penafiel, Portugal
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217
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Jain AB, Lai V. Medication-Induced Hyperglycemia and Diabetes Mellitus: A Review of Current Literature and Practical Management Strategies. Diabetes Ther 2024; 15:2001-2025. [PMID: 39085746 PMCID: PMC11330434 DOI: 10.1007/s13300-024-01628-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 07/15/2024] [Indexed: 08/02/2024] Open
Abstract
With the increasing global incidence of diabetes mellitus, physicians may encounter more patients with acute and chronic complications of medication-induced hyperglycemia and diabetes. Moreover, medication-induced diabetes may be an important contributing factor to the high rates of diabetes, and recognizing its impact and risk is a critical step in curtailing its effect on the global population. It has long been recognized that multiple classes of medications are associated with hyperglycemia through various mechanisms, and the ability to foresee this and implement adequate management strategies are important. Moreover, different antihyperglycemic medications are better suited to combat the hyperglycemia encountered with different classes of medications, so it is critical that physicians can recognize which agents should be used, and which medications to avoid in certain types of medication-induced hyperglycemia. In this review, we will discuss the evidence behind the main classes of medications that cause hyperglycemia, their mechanism of action, specific agents that are associated with worsened glycemic control, and, most importantly, management strategies that are tailored to each specific class.
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Affiliation(s)
- Akshay B Jain
- Division of Endocrinology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
| | - Valerie Lai
- Division of Endocrinology and Metabolism, Department of Medicine, University of Calgary, Calgary, AB, Canada
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218
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Tabęcka-Łonczyńska A, Koszła O, Sołek P. Unraveling the anti-androgenic mechanism of tris(2,3-dibromopropyl) isocyanurate (TBC) via the non-classical testosterone pathway and steroidogenesis: Potential human reproductive health implications. CHEMOSPHERE 2024; 363:142802. [PMID: 38996977 DOI: 10.1016/j.chemosphere.2024.142802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024]
Abstract
The decline in male reproductive health, characterized by diminishing sperm count and testosterone levels, has raised concerns about environmental influences, particularly endocrine-disrupting chemicals (EDCs). Tris(2,3-dibromopropyl)isocyanurate (TBC), a novel brominated flame retardant widely used in electronics, textiles, and furniture, has emerged as a significant environmental contaminant with potential reproductive health implications. In this study, we investigated the molecular mechanisms underlying TBC-induced reproductive toxicity, particularly focusing on its impact on steroidogenesis and androgen signaling pathways using the GC-1 spg cell line as an in vitro model. Exposure of GC-1 spg cells to TBC, alone or in combination with testosterone or the anti-androgen flutamide resulted in decreased metabolic activity and increased lactate dehydrogenase release, indicating cytotoxic effects. Furthermore, TBC exposure led to a reduction in progesterone synthesis, while testosterone production remained unaffected. Interestingly, estradiol synthesis was diminished after TBC exposure, suggesting a disruption in steroid hormone balance critical for spermatogenesis. Mechanistic investigations revealed alterations in key proteins involved in the non-classical testosterone pathway and steroidogenesis. TBC exposure downregulated epidermal growth factor receptor (EGFR), protein kinase B (AKT), and phosphorylated cyclic AMP response element-binding protein (p-CREB), indicating suppression of non-classical androgen signaling. Additionally, decreased levels of steroidogenic acute regulatory protein (StAR) and 3-beta-hydroxysteroid dehydrogenase (HSD3β1) suggest impaired steroidogenesis. Here we uncover the intricate molecular mechanisms underlying TBC-induced reproductive toxicity, highlighting its potential to disrupt steroid hormone synthesis and androgen signaling pathways. Understanding the adverse effects of TBC on male reproductive health is crucial for developing strategies to mitigate its environmental impact and safeguard human fertility.
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Affiliation(s)
- Anna Tabęcka-Łonczyńska
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225, Rzeszów, Poland.
| | - Oliwia Koszła
- Department of Biopharmacy, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland.
| | - Przemysław Sołek
- Department of Biopharmacy, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland; Department of Biochemistry and Toxicology, University of Life Sciences, Akademicka 13, 20-950, Lublin, Poland.
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219
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Beltrami-Moreira M, Sharma A, Bussel JB. Immune thrombocytopenia and pregnancy: challenges and opportunities in diagnosis and management. Expert Rev Hematol 2024; 17:595-607. [PMID: 39105265 DOI: 10.1080/17474086.2024.2385481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/13/2024] [Accepted: 07/24/2024] [Indexed: 08/07/2024]
Abstract
INTRODUCTION Immune thrombocytopenia (ITP) affecting pregnancy is a diagnostic and often a therapeutic challenge. AREAS COVERED We review the current diagnostic criteria for ITP in pregnancy and the potential utility of laboratory tests. We discuss the impact of ITP on pregnancy outcomes and the effects of pregnancy on patients living with chronic ITP. We describe the criteria for intervention, the evidence supporting first-line treatment approaches and the therapeutic decisions and challenges in cases refractory to steroids and IVIG. We review the evidence supporting the potential use of thrombopoietin receptor agonists for refractory thrombocytopenia. Finally, we describe the diagnostic, prognostic, and treatment approaches to neonatal ITP and considerations regarding breastfeeding. We searched the terms 'immune thrombocytopenia' and 'pregnancy' on PubMed to identify the relevant literature published before 31 December 2023, including within cited references. EXPERT OPINION Decreased platelet production may play a role in pregnancy-related ITP exacerbation. Putative mechanisms include placental hormones, such as inhibin. Although IVIG and prednisone usually suffice to achieve hemostasis for delivery, second-line agents are sometimes required to allow for neuraxial anesthesia. There is growing evidence supporting the use of romiplostim during pregnancy; however, its risk of venous thromboembolism warrants further evaluation.
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MESH Headings
- Humans
- Pregnancy
- Female
- Purpura, Thrombocytopenic, Idiopathic/diagnosis
- Purpura, Thrombocytopenic, Idiopathic/therapy
- Pregnancy Complications, Hematologic/diagnosis
- Pregnancy Complications, Hematologic/therapy
- Pregnancy Complications, Hematologic/drug therapy
- Immunoglobulins, Intravenous/therapeutic use
- Disease Management
- Receptors, Thrombopoietin/agonists
- Thrombopoietin/therapeutic use
- Pregnancy Outcome
- Receptors, Fc
- Recombinant Fusion Proteins
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Affiliation(s)
- Marina Beltrami-Moreira
- Department of Medicine, Division of Hematology, The Ohio State University Wexner Medical Center, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Amy Sharma
- Department of Hematology-Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, Division of Hematology, New York, NY, USA
| | - James B Bussel
- NewYork-Presbyterian Hospital/Weill Cornell Medicine, Department of Pediatrics and Department of Medicine, Division of Hematology and Medical Oncology, New York, NY, USA
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220
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Zhu J, Guo J, Liu Z, Liu J, Yuan A, Chen H, Qiu J, Dou X, Lu D, Le Y. Salvianolic acid A attenuates non-alcoholic fatty liver disease by regulating the AMPK-IGFBP1 pathway. Chem Biol Interact 2024; 400:111162. [PMID: 39047806 DOI: 10.1016/j.cbi.2024.111162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/01/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) affects approximately a quarter of the population and, to date, there is no approved drug therapy for this condition. Individuals with type 2 diabetes mellitus (T2DM) are at a significantly elevated risk of developing NAFLD, underscoring the urgency of identifying effective NAFLD treatments for T2DM patients. Salvianolic acid A (SAA) is a naturally occurring phenolic acid that is an important component of the water-soluble constituents isolated from the roots of Salvia miltiorrhiza Bunge. SAA has been demonstrated to possess anti-inflammatory and antioxidant stress properties. Nevertheless, its potential in ameliorating diabetes-associated NAFLD has not yet been fully elucidated. In this study, diabetic ApoE-/- mice were employed to establish a NAFLD model via a Western diet. Following this, they were treated with different doses of SAA (10 mg/kg, 20 mg/kg) via gavage. The study demonstrated a marked improvement in liver injury, lipid accumulation, inflammation, and the pro-fibrotic phenotype after the administration of SAA. Additionally, RNA-seq analysis indicated that the primary pathway by which SAA alleviates diabetes-induced NAFLD involves the cascade pathways of lipid metabolism. Furthermore, SAA was found to be effective in the inhibition of lipid accumulation, mitochondrial dysfunction and ferroptosis. A functional enrichment analysis of RNA-seq data revealed that SAA treatment modulates the AMPK pathway and IGFBP-1. Further experimental results demonstrated that SAA is capable of inhibiting lipid accumulation through the activation of the AMPK pathway and IGFBP-1.
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Affiliation(s)
- Ji Zhu
- The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, 330106, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Jianan Guo
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Zhijun Liu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Jing Liu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Aini Yuan
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Hang Chen
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Jiannan Qiu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Xiaobing Dou
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Dezhao Lu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Yifei Le
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China; Lipid Metabolism Institute (Molecular Medicine Institute), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Chen LW, Mo HY, Shan CH, Chen X, Han C, Tao FB, Gao H. Health hazards of preconception phthalate exposure: A scoping review of epidemiology studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116763. [PMID: 39047367 DOI: 10.1016/j.ecoenv.2024.116763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
There is a close relationship between preconception health and maternal and child health outcomes, and the consequences may be passed down from generation to generation. In 2018, Lancet published three consecutive articles emphasizing the importance of the preconception period. Phthalic acid ester (PAE) exposure during this period may affect gametogenesis and epigenetic information in gametophytes, thereby affecting embryonic development and offspring health. Therefore, this article reviews the effects of parental preconception PAE exposure on reproductive/birth outcomes and offspring health, to provide new evidence on this topic. We searched Web of Science, MEDLINE (through PubMed), the China National Knowledge Infrastructure (CNKI), ScienceDirect, and the VIP Journal Library from the date of database establishment to July 3, 2024. Finally, 12 articles were included. Three studies investigated the health hazards (effects on birth weight, abortion, etc.) of women's preconception PAE exposure. Nine studies involved both parents. Nine studies considered the impacts of PAE preconception exposure on reproductive/birth outcomes, focusing on birth weight, pregnancy loss, preterm birth, embryo quality, and placental weight. Three studies considered the impacts of preconception PAE exposure on offspring behavior. The results of this review suggested that parental preconception PAE exposure may have an impact on reproductive/birth outcomes and offspring behavior, including birth weight, child behavior, and dietary behavior. However, studies on the health hazards of preconception PAE exposure are relatively scarce, and the outcomes of current studies are varied. It is necessary to use systematic reviews to verify an accurate research question to provide recommendations for public health policy making.
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Affiliation(s)
- Li-Wen Chen
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Hua-Yan Mo
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Chun-Han Shan
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Xin Chen
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Chen Han
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China
| | - Fang-Biao Tao
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China.
| | - Hui Gao
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, Anhui 230022, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China.
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Pulcastro H, Ziv-Gal A. Parabens effects on female reproductive health - Review of evidence from epidemiological and rodent-based studies. Reprod Toxicol 2024; 128:108636. [PMID: 38876430 DOI: 10.1016/j.reprotox.2024.108636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 06/16/2024]
Abstract
Parabens have been used as antimicrobial preservatives since the 1920s. The prevalent use of parabens increases their detection in the environment and in women's biological samples including reproductive tissues. Recent studies suggest parabens may alter endocrine function and thus female reproductive health may be affected. In this literature review, we summarize findings on parabens and female reproduction while focusing on epidemiological and rodent-based studies. The topics reviewed include paraben effects on cyclicity, pregnancy, newborn and pubertal development, reproductive hormones, and ovarian and uterine specific outcomes. Overall, the scientific literature on paraben effects on female reproduction is limited and with some conflicting results. Yet, some epidemiological and/or rodent-based experimental studies report significant findings in relation to paraben effects on cyclicity, fertility, gestation length, birth weight, postnatal development and pubertal onset, hormone levels, and hormone signaling in reproductive tissues. Future epidemiological and experimental studies are needed to better understand paraben effects on female reproduction while focusing on human related exposures including mixtures, physiologic concentrations of parabens, and multi-generational studies.
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Affiliation(s)
- Hannah Pulcastro
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Ayelet Ziv-Gal
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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223
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Sun Y, King B, Hamlin AJ, Saniepay M, Gorshkov K, Barker G, Ziegler M, Mukundan S, Cvijic ME, Schwarzbauer JE. Identification of a fibronectin-binding protein signature associated with idiopathic pulmonary fibrosis. Cells Dev 2024; 179:203941. [PMID: 39038657 PMCID: PMC11344656 DOI: 10.1016/j.cdev.2024.203941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 07/11/2024] [Accepted: 07/17/2024] [Indexed: 07/24/2024]
Abstract
The extracellular matrix (ECM) is a critical component of tissue where it provides structural and signaling support to cells. Its dysregulation and accumulation lead to fibrosis, a major clinical challenge underlying many diseases that currently has little effective treatment. An understanding of the key molecular initiators of fibrosis would be both diagnostically useful and provide potential targets for therapeutics. The ECM protein fibronectin (FN) is upregulated in fibrotic conditions and other ECM proteins depend on assembly of a FN foundational ECM for their matrix incorporation. We used cell culture and in vivo models to investigate the role of FN in the progression of lung fibrosis. We confirmed that normal human lung fibroblasts (NHLFs) treated with transforming growth factor-beta (TGF-β) to stimulate fibrotic gene expression significantly increased both FN expression and its assembly into a matrix. We found that levels of alternatively spliced EDA and EDB exons were proportional to the increase in total FN RNA and protein showing that inclusion of these exons is not enhanced by TGF-β stimulation. RNA-sequencing identified 43 core matrisome genes that were significantly up- or down-regulated by TGF-β treatment and a Luminex immunoassay demonstrated increased levels of ECM proteins in conditioned medium of TGF-β-treated NHLFs. Interestingly, among the regulated core matrisome genes, 16 encode known FN-binding proteins and, of these, insulin-like growth factor binding protein 3 (IGFBP3) was most highly up-regulated. To link the NHLF results with in vivo disease, we analyzed lung tissue and bronchoalveolar lavage fluid from bleomycin-treated mice and found dramatically higher levels of FN and the FN-binding proteins IGFBP3, tenascin-C, and type I collagen in fibrotic conditions compared to controls. Altogether, our data identify a set of FN-binding proteins whose upregulation is characteristic of IPF and suggest that FN provides the foundational matrix for deposition of these proteins as fibrosis develops.
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Affiliation(s)
- Yu Sun
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA 08544
| | - Benjamin King
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Aaron J. Hamlin
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA 08544
| | - Mersedeh Saniepay
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Kirill Gorshkov
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Gregory Barker
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Milinda Ziegler
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Shilpaa Mukundan
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Mary Ellen Cvijic
- Leads Discovery and Optimization, Bristol Myers Squibb, Lawrenceville, New Jersey, USA 08648
| | - Jean E. Schwarzbauer
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA 08544
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Klein J, Saeger K, Saeger W. [Quantification of Ki-67 in PitNET (pituitary neuroendocrine tumors)/adenomas]. PATHOLOGIE (HEIDELBERG, GERMANY) 2024; 45:339-343. [PMID: 38992316 PMCID: PMC11343892 DOI: 10.1007/s00292-024-01319-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 07/13/2024]
Abstract
This study is the first to compare the determination of the Ki-67 index in pituitary neuroendocrine tumors (PitNET)/pituitary adenomas by pathologists with a computerized method (Cognition MasterSuite from VMScope, Berlin, Germany). PitNET/pituitary adenomas often show a low proliferation index. Observer variability is high, especially when estimating in this low percentage range. A more reliable determination would be possible using the four-eyes principle, but this cannot be realized continuously; thus, digital image analysis is a promising solution. In the study, there was clear agreement between the Ki-67 estimate by two experienced pathologists and the determination with the aid of digital image analysis. The digital image analysis system is excellent for determining the proliferation rate of PitNET/pituitary adenomas and can therefore be used to determine the "third" and "fourth eye".
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Affiliation(s)
- Judith Klein
- Institut für Neuropathologie der Universität Hamburg, UKE, Martinistraße 52, 20246, Hamburg, Deutschland
| | - Kai Saeger
- Institut für Neuropathologie der Universität Hamburg, UKE, Martinistraße 52, 20246, Hamburg, Deutschland
- VMScope GmbH, Berlin, Deutschland
| | - Wolfgang Saeger
- Institut für Neuropathologie der Universität Hamburg, UKE, Martinistraße 52, 20246, Hamburg, Deutschland.
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225
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Bodduluri L, Dain SJ, Hameed S, Verge CF, Boon MY. Visual function and retinal thickness in children with type 1 diabetes mellitus. Clin Exp Optom 2024; 107:739-747. [PMID: 38175925 DOI: 10.1080/08164622.2023.2288176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 01/06/2024] Open
Abstract
CLINICAL RELEVANCE The possibility that changes in blue-yellow visual thresholds and some retinal thickness measures in children with diabetes mellitus may be observed before any visible fundus changes points to the possibility of these measures being a useful predictor that the risks of diabetic retinopathy are higher in some children than in others. INTRODUCTION Previous studies showed mixed results on chromatic and achromatic contrast sensitivity early in the course of diabetes mellitus, and the findings of these studies may have been influenced by a lack of experimental sensitivity to visual deficits, a bias towards tritan-like errors or the cognitive demands of the tests and variations in sample composition. The purpose of this study was to evaluate colour and contrast thresholds and retinal thickness in children with type 1 diabetes mellitus compared with age-matched controls. METHODS A prospective case-control study was carried out on 9-14-year-old children with type 1 diabetes mellitus (49 cases) and age matched controls (49) in which isoluminant red-green and blue-yellow and achromatic luminance contrast thresholds were measured. Fundus photography was used to grade diabetic retinopathy. Retinal thickness parameters were measured using optical coherence tomography. Data on the duration of diabetes mellitus, glycaemic control (HbA1c), blood glucose level, body mass index, blood pressure and blood oxygenation at the time of testing were obtained. RESULTS The cases mostly had poorly controlled diabetes, HbA1c 8.6% (6.4-12.8%), for an average (range) duration of 5 (0.4-12) years. The cases had significantly higher blue-yellow thresholds (p = 0.02) and greater total retinal and inner retinal thickness (p < 0.05) than controls. No cases had diabetic retinopathy. Within the cases, poorer visual function and systemic health measures were associated with thinner retinal structures and greater global loss volume percentage in the ganglion cell complex. CONCLUSION Blue-yellow thresholds of cases were raised compared to normal. Within the cases, higher luminance contrast thresholds were also associated with, mostly, ganglion cell complex reductions.
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Affiliation(s)
- Lakshmi Bodduluri
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Stephen J Dain
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Shihab Hameed
- Endocrinology Department, Sydney Children's Hospital, Randwick, Australia
| | - Charles F Verge
- Endocrinology Department, Sydney Children's Hospital, Randwick, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - Mei Ying Boon
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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226
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Zhao C, Jiang B, Yan W, Wang X, Ding H, Xia C. Changes in adiponectin levels of subclinical ketosis cows and their effects on steroid hormone secretion and proliferation in follicular granulosa cells. Reprod Biol 2024; 24:100898. [PMID: 38889545 DOI: 10.1016/j.repbio.2024.100898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/17/2024] [Accepted: 05/17/2024] [Indexed: 06/20/2024]
Abstract
In dairy cows, the occurrence of subclinical ketosis (SCK) is particularly high during early lactation. Previously, we documented alterations in the abundance of adiponectin (ADPN) in anestrus cows with SCK in comparison to cows in estrus. In the present study, 60 cows were divided into two groups: control (C, n = 30) and SCK (n = 30). Based on cow's estrus situation in two group at 55-60 days postpartum, 15 anestrus SCK cows and estrus cows were designated the SCK-A group and C-E group, respectively. The SCK-A group had downregulated serum and follicular fluid ADPN levels compared with the C-E group. The serum ADPN level was positively correlated with the insulin level and follicle growth rate, and there was a positive correlation between ADPN and glucose in the follicular fluid. Primary culture of dairy cow granulosa cells (GCs) was established to observe the effect of low glucose (Glu) and/or ADPN on GCs cyclins and proteins important for steroid synthesis. The results showed that the addition of 1 µg/mL ADPN alleviated the negative effects of low Glu treatment on the proliferation of GCs and the expression of steroid secretion related protein proteins. Treatment with LY294002 (PI3K inhibitor) four experimental GCs groups: control (0 µg/mL ADPN), 1 µg/mL ADPN, LY294002 inhibitor, and 1 µg/mL ADPN+LY294002. The results showed that ADPN promotes the secretion of steroid hormones by GCs through the PI3K-AKT. In summary, ADPN plays a crucial role in ameliorating postpartum anestrus in dairy cows with SCK.
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Affiliation(s)
- Chang Zhao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - BenZheng Jiang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Weizhe Yan
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xichun Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Hongyan Ding
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China.
| | - Cheng Xia
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China.
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Kikuchi O, Ikeuchi Y, Kobayashi M, Tabei Y, Yokota-Hashimoto H, Kitamura T. Imeglimin enhances glucagon secretion through an indirect mechanism and improves fatty liver in high-fat, high-sucrose diet-fed mice. J Diabetes Investig 2024; 15:1177-1190. [PMID: 38874179 DOI: 10.1111/jdi.14249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/03/2024] [Accepted: 05/24/2024] [Indexed: 06/15/2024] Open
Abstract
AIMS/INTRODUCTION Imeglimin is a recently approved oral antidiabetic agent that improves insulin resistance, and promotes insulin secretion from pancreatic β-cells. Here, we investigated the effects of imeglimin on glucagon secretion from pancreatic α-cells. MATERIALS AND METHODS Experiments were carried out in high-fat, high-sucrose diet-fed mice. The effects of imeglimin were examined using insulin and glucose tolerance tests, glucose clamp studies, and measurements of glucagon secretion from isolated islets. Glucagon was measured using both the standard and the sequential protocol of Mercodia sandwich enzyme-linked immunosorbent assay; the latter eliminates cross-reactivities with other proglucagon-derived peptides. RESULTS Plasma glucagon, insulin and glucagon-like peptide-1 levels were increased by imeglimin administration in high-fat, high-sucrose diet-fed mice. Glucose clamp experiments showed that the glucagon increase was not caused by reduced blood glucose levels. After both single and long-term administration of imeglimin, glucagon secretions were significantly enhanced during glucose tolerance tests. Milder enhancement was observed when using the sequential protocol. Long-term administration of imeglimin did not alter α-cell mass. Intraperitoneal imeglimin administration did not affect glucagon secretion, despite significantly decreased blood glucose levels. Imeglimin did not enhance glucagon secretion from isolated islets. Imeglimin administration improved fatty liver by suppressing de novo lipogenesis through decreasing sterol regulatory element binding protein-1c and carbohydrate response element binding protein and their target genes, while enhancing fatty acid oxidation through increasing carnitine palmitoyltransferase I. CONCLUSIONS Overall, the present results showed that imeglimin enhances glucagon secretion through an indirect mechanism. Our findings also showed that glucagon secretion promoted by imeglimin could contribute to improvement of fatty liver through suppressing de novo lipogenesis and enhancing fatty acid oxidation.
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Affiliation(s)
- Osamu Kikuchi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Yuichi Ikeuchi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Masaki Kobayashi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Yoko Tabei
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Hiromi Yokota-Hashimoto
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
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Qin L, Liu Q, Zhang T, Tang X, Mo X, Liang Y, Wang X, Cao J, Huang C, Lu Y, Zhang Z, Qin J, Cai J. Association Between Combined Polymetallic Exposure and Osteoporosis. Biol Trace Elem Res 2024; 202:3945-3958. [PMID: 38109003 DOI: 10.1007/s12011-023-04002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
Combined polymetallic exposure may be an influential factor in osteoporosis. This study aimed to explore the association between polymetallic combined exposure and osteoporosis. A total of 2115 participants were included. Plasma concentrations of 22 metals were determined by inductively coupled plasma mass spectrometry. Osteoporosis was defined as a T ≤ - 2.5. The least absolute shrinkage and selection operator (LASSO) regression, binary logistics regression, and Bayesian kernel machine regression (BKMR) model were used to explore the association between plasma metals and osteoporosis. LASSO regression showed that 10 metals were associated with osteoporosis in the total population (magnesium, calcium, manganese, nickel, cobalt, arsenic, selenium, rubidium, cadmium, aluminum) and women (magnesium, calcium, molybdenum, nickel, cobalt, arsenic, selenium, rubidium, cadmium, aluminum), and four metals associated with men (magnesium, cobalt, aluminum, iron). Logistics regression showed that in total population, magnesium (ORQ3 = 0.653, 95% CI = 0.446-0.954) was negatively correlated with osteoporosis, while aluminum (ORQ2 = 1.569, 95% CI = 1.095-2.248, ORQ4 = 1.616, 95% CI = 1.109-2.354) and cadmium (ORQ4 = 1.989, 95% CI = 1.379-2.870) were positively correlated; in women, magnesium (ORQ3 = 0.579, 95% CI = 0.379-0.883) was negatively correlated with osteoporosis, while aluminum (ORQ2 = 1.563, 95% CI = 1.051-2.326, ORQ4 = 1.543, 95% CI = 1.024-2.326) and cadmium (ORQ3 = 1.482, 95% CI = 1.003-2.191, ORQ4 = 1.740, 95% CI = 1.167-2.596) were positively correlated. BKMR model showed that combined polymetallic exposure had an overall positive effect on osteoporosis, magnesium was negatively associated with osteoporosis, and cadmium, selenium, and aluminum were positively associated with osteoporosis. Metal mixtures in plasma were associated with osteoporosis risk. Magnesium may reduce the risk of osteoporosis, while cadmium, selenium, and aluminum may increase the risk of osteoporosis. Future studies needed to explore correlations and mechanisms.
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Affiliation(s)
- Lidong Qin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Qiumei Liu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Tiantian Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xu Tang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xiaoting Mo
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Yujian Liang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xuexiu Wang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Jiejing Cao
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Chuwu Huang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Yufu Lu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Zhiyong Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
- Guangxi Health Commission Key Laboratory of Entire Lifecycle Health and Care, Guilin Medical University, Guilin, China
| | - Jian Qin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China.
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, China.
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China.
| | - Jiansheng Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China.
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Huan Cheng North 2Nd Road 109, Guilin, 541004, Guangxi, China.
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Zhao W, Cheng Z, Ji X, Pei Z, Yang K, Huang Z, Wu Y, Wang G, Wang M, Zhao Y, Bai X, Zhao S. Efficacy and safety of ongericimab given by prefilled syringe or autoinjector in primary hypercholesterolemia and mixed hyperlipidemia. Nutr Metab Cardiovasc Dis 2024; 34:2217-2225. [PMID: 38866609 DOI: 10.1016/j.numecd.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND AND AIMS Limited evidence exist regarding the association between ongericimab, a novel recombinant humanized anti-PCSK9 monoclonal antibody, and primary hypercholesterolemia and mixed dyslipidemia. This study aimed to evaluate the efficacy and safety of ongericimab administered by prefilled syringe (PFS) or autoinjector (AI) in Chinese patients with primary hypercholesterolemia and mixed dyslipidemia on stable optimized lipid-lowering therapy. METHODS AND RESULTS A total of 255 patients on stable optimized lipid-lowering therapy were randomized in a 2:1:2:1 ratio to receive PFS for the subcutaneous injection of ongericimab 150 mg every 2 weeks (Q2W) or a matching placebo, or AI for the subcutaneous injection of ongericimab 150 mg Q2W or a matching placebo. The primary efficacy endpoint was the percent change in low-density lipoprotein cholesterol (LDL-C) levels from baseline to week 12. Safety was also evaluated. At week 12, the least squares mean percent changes were -72.7% (3.9%) for PFS and -71.1% (3.8%) for AI (all P < 0.001) compared to respective matching placebo groups. Beneficial effects were also seen for all secondary lipid parameters, notably with robust reduction in Lp (a). Treatment-emergent adverse events (TEAEs) and serious AEs with ongericimab were reported in 46.2% and 2.4% of patients, compared to 44.2% and 3.5% with placebo. CONCLUSION In Chinese patients with primary hypercholesterolemia and mixed dyslipidemia, a 12-week treatment regimen with ongericimab administered by PFS or AI significantly reduced LDL-C and other lipid parameters, proving to be safe and well tolerated. Patients experienced consistent effects from PFS or AI devices. CLINICAL TRIAL REGISTRATION CTR20220027; January 11, 2022; http://www.chinadrugtrials.org.cn/index.html.
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Affiliation(s)
- Wang Zhao
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Zhifeng Cheng
- Department of Endocrinology and Metabolism, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, PR China
| | - Xianyou Ji
- Department of Cardiology, Daqing People's Hospital, Daqing, Heilongjiang, PR China
| | - Zhaohui Pei
- Department of Cardiology, Third Hospital of Nanchang, Nanchang, Jiangxi, PR China
| | - Keping Yang
- Department of Cardiology, Jingzhou Central Hospital, Jingzhou, Hubei, PR China
| | - Zhouqing Huang
- Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Yanqing Wu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Gaopin Wang
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, PR China
| | - Minghui Wang
- Shanghai Junshi Biosciences Co., Ltd., Shanghai, PR China
| | - Yi Zhao
- Shanghai Junshi Biosciences Co., Ltd., Shanghai, PR China
| | - Xuelian Bai
- Shanghai Junshi Biosciences Co., Ltd., Shanghai, PR China
| | - Shuiping Zhao
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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Xu Y, Gao Z, Sun X, Li J, Ozaki T, Shi D, Yu M, Zhu Y. The role of circular RNA during the urological cancer metastasis: exploring regulatory mechanisms and potential therapeutic targets. Cancer Metastasis Rev 2024; 43:1055-1074. [PMID: 38558156 DOI: 10.1007/s10555-024-10182-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/02/2024] [Indexed: 04/04/2024]
Abstract
Metastasis is a major contributor to treatment failure and death in urological cancers, representing an important biomedical challenge at present. Metastases form as a result of cancer cells leaving the primary site, entering the vasculature and lymphatic vessels, and colonizing clones elsewhere in the body. However, the specific regulatory mechanisms of action underlying the metastatic process of urological cancers remain incompletely elucidated. With the deepening of research, circular RNAs (circRNAs) have been found to not only play a significant role in tumor progression and prognosis but also show aberrant expression in various tumor metastases, consequently impacting tumor metastasis through multiple pathways. Therefore, circRNAs are emerging as potential tumor markers and treatment targets. This review summarizes the research progress on elucidating how circRNAs regulate the urological cancer invasion-metastasis cascade response and related processes, as well as their role in immune microenvironment remodeling and circRNA vaccines. This body of work highlights circRNA regulation as an emerging therapeutic target for urological cancers, which should motivate further specific research in this regard.
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Affiliation(s)
- Yan Xu
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Zhipeng Gao
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Xiaoyu Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110001, China
| | - Jun Li
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Toshinori Ozaki
- Laboratory of DNA Damage Signaling, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Du Shi
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Meng Yu
- Department of Laboratory Animal Science, China Medical University, No. 77 Puhe Road, Shenyang, 110122, Liaoning, China.
| | - Yuyan Zhu
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China.
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Pelekanou C, Anastasiou CA, Mavrogianni C, Cardon G, Liatis S, Lindstrom J, Moreno LA, Hilal S, Rurik I, Wikström K, Iotova V, Makrilakis K, Manios Y. Physical activity in relation to metabolic health and obesity: The Feel4Diabetes study. Diabetes Obes Metab 2024; 26:3705-3714. [PMID: 38895792 DOI: 10.1111/dom.15713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/20/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024]
Abstract
AIM To examine physical activity levels in association with metabolic health and estimate the stability of metabolically healthy obese (MHO) phenotypes over a 2-year period. METHODS In total, 2848 men and women from families at risk of the development of diabetes were recruited. Participants were classified as obese or non-obese and metabolic health was defined using five existing definitions. Physical activity was estimated with the International Physical Activity Questionnaire and pedometers. RESULTS Prevalence of the MHO phenotype varied among definitions (0% to 20.2%). Overall, the MHO were more active than the metabolically unhealthy obese (MUO). Daily sitting hours (odds ratio [OR] = 1.055, 95% confidence interval [CI]: 1.009-1.104) and daily steps (per 500; OR = 0.934, 95% CI: 0.896-0.973) were remarkable predictors of metabolic health in individuals with obesity; and likewise, in individuals without obesity. After 2 years, 44.1% of baseline MHO adults transitioned to MUO, while 84.0% of the MUO at baseline remained at the same phenotype. Although physical activity was not a major determinant in phenotype transitioning, daily steps were associated with the maintenance of metabolic health over time in the non-obese group. CONCLUSION A universally accepted definition for MHO is needed. Being physically active can contribute to a metabolically healthy profile even in the presence of obesity; still, MHO is a transient condition and physical activity alone may not be an adequate factor for its maintenance.
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Affiliation(s)
- Christina Pelekanou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Costas A Anastasiou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Christina Mavrogianni
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Greet Cardon
- Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
| | - Stavros Liatis
- First Department of Propaedeutic Internal Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Jaana Lindstrom
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Luis A Moreno
- Growth, Exercise, Nutrition and Development (GENUD), Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria Aragón (IIS Aragón), Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Soukaina Hilal
- Department of Family and Occupational Medicine, University of Debrecen & Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Imre Rurik
- Department of Family Medicine, Semmelweis University, Budapest, Hungary
| | - Katja Wikström
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Violeta Iotova
- Department of Paediatrics, Medical University Varna, Varna, Bulgaria
| | - Konstantinos Makrilakis
- First Department of Propaedeutic Internal Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Yannis Manios
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
- Institute of Agri-food and Life Sciences, University Research & Innovation Center, H.M.U.R.I.C., Hellenic Mediterranean University, Crete, Greece
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Metzger BM, Özpolat BD. Developmental stage dependent effects of posterior and germline regeneration on sexual maturation in Platynereis dumerilii. Dev Biol 2024; 513:33-49. [PMID: 38797257 PMCID: PMC11211637 DOI: 10.1016/j.ydbio.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/22/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Regeneration, regrowing lost and injured body parts, is an ability that generally declines with age or developmental transitions (i.e. metamorphosis, sexual maturation). Regeneration is also an energetically costly process, and trade-offs occur between regeneration and other costly processes such as growth, or sexual reproduction. Here we investigate the interplay of regeneration, reproduction, and developmental stage in the segmented worm Platynereis dumerilii. P. dumerilii can regenerate its whole posterior body axis, along with its reproductive cells, thereby having to carry out the two costly processes (somatic and germ cell regeneration) after injury. We specifically examine how developmental stage affects the success of germ cell regeneration and sexual maturation in developmentally young versus developmentally old organisms. We hypothesized that developmentally younger individuals (i.e. with gametes in early mitotic stages) will have higher regeneration success than the individuals at developmentally older stages (i.e. with gametes undergoing meiosis and maturation). Surprisingly, older amputated worms grew faster and matured earlier than younger amputees. To analyze germ cell regeneration during and after posterior regeneration, we used Hybridization Chain Reaction for the germline marker vasa. We found that regenerated worms start repopulating new segments with germ cell clusters as early as 14 days post amputation. In addition, vasa expression is observed in a wide region of newly-regenerated segments, which appears different from expression patterns during normal growth or regeneration in worms before gonial cluster expansion.
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Affiliation(s)
- Bria M Metzger
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA; Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA, USA.
| | - B Duygu Özpolat
- Department of Biology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA; Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA, USA.
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Karampela I, Stratigou T, Antonakos G, Kounatidis D, Vallianou NG, Tsilingiris D, Dalamaga M. 25-hydroxyvitamin D and parathyroid hormone in new onset sepsis: A prospective study in critically ill patients. Metabol Open 2024; 23:100296. [PMID: 38983450 PMCID: PMC11228765 DOI: 10.1016/j.metop.2024.100296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/15/2024] [Accepted: 06/15/2024] [Indexed: 07/11/2024] Open
Abstract
Hypovitaminosis D is highly prevalent in critically ill patients, and it has been suggested to be a risk factor for infections, sepsis and higher mortality. We sought to investigate whether serum 25-hydroxyvitamin D (25(OH)D) and parathyroid hormone (PTH) in critically ill patients with new onset sepsis are associated with severity and outcome. We prospectively included 50 consecutive critically ill adult cases with new onset sepsis and 50 healthy controls matched for age and sex. PTH and 25(OH)D were determined in serum via electrochemiluminescence immunoassays at inclusion in the study in all cases and controls, and one week after sepsis onset in cases. Patients had reduced 25(OH)D compared to controls at sepsis onset (7.9 ± 3 vs 24.6 ± 6.7 ng/mL, p < 0.001), whilst PTH was similar (median (range): 34.5 (5.7-218.5) vs 44.2 (14.2-98.1) pg/mL, p = 0.35). In patients, 25(OH)D upon enrollment and one week after did not differ significantly (7.9 ± 3 vs 7 ± 4.3 ng/mL, p = 0.19). All patients presented with hypovitaminosis D (25(OH)D < 20 ng/mL), while 40 patients (80 %) had vitamin D deficiency (25(OH)D < 12 ng/mL) at sepsis onset, including all ten (20 %) nonsurvivors, who died within 28 days from sepsis onset. Patients with sepsis (N = 28) and septic shock (N = 22) as well as survivors (N = 40) and nonsurvivors (N = 10) had similar 25(OH)D at enrollment (p > 0.05). 25(OH)D was positively correlated with ionized calcium (r = 0.46, p < 0.001) and negatively with PTH (p < 0.05), while inflammatory biomarkers or the severity scores exhibited no correlation with 25(OH)D. Patients with septic shock and nonsurvivors had lower PTH than patients with sepsis and survivors respectively (42.2 ± 42.9 vs 73.4 ± 61.9 pg/mL, p = 0.04, and 18.3 ± 10.7 vs 69.9 ± 58.8 pg/mL, p = 0.001, respectively). C-reactive protein was negatively associated with PTH (r = -0.44, p = 0.001). In conclusion, vitamin D deficiency was present in 80 % of critically ill patients at sepsis onset, while nonsurvivors exhibited lower PTH than survivors. Additional, larger and multicenter studies are warranted to elucidate the contribution of vitamin D and PTH to the pathogenesis of sepsis and its outcomes.
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Affiliation(s)
- Irene Karampela
- Second Department of Critical Care, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 1 Rimini St., Haidari, 12462, Athens, Greece
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias St., Goudi, 11527, Athens, Greece
| | - Theodora Stratigou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias St., Goudi, 11527, Athens, Greece
- Department of Endocrinology, Evangelismos General Hospital, 45-47 Ipsilantou St., 10676, Athens, Greece
| | - Georgios Antonakos
- Laboratory of Clinical Biochemistry, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, 1 Rimini St., Haidari, 12462, Athens, Greece
| | - Dimitris Kounatidis
- Department of Internal Medicine, Hippokration General Hospital, 114 Vasilissis Sofias St., 11527, Athens, Greece
| | - Natalia G Vallianou
- Department of Internal Medicine, Sismanogleio General Hospital, 1 Sismanogleiou St., 15126, Athens, Greece
| | - Dimitrios Tsilingiris
- First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias St., Goudi, 11527, Athens, Greece
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Llewellyn MJ, Griffin EK, Caspar RJ, Timshina AS, Bowden JA, Miller CJ, Baker BB, Baker TR. Identification and quantification of novel per- and polyfluoroalkyl substances (PFAS) contamination in a Great Lakes urban-dominated watershed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 941:173325. [PMID: 38797403 DOI: 10.1016/j.scitotenv.2024.173325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/27/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a large group of synthetic organic fluoro-compounds that are oil-, water-, and flame-resistant, making them useful in a wide range of commercial and consumer products, as well as resistant to environmental degradation. To assess the impact of urbanization and wastewater treatment processes, surface water and sediment samples were collected at 27 sites within the Great Lakes in the Lake Huron to Lake Erie corridor (HEC), an international waterway including the highly urbanized Detroit and Rouge Rivers. Samples were analyzed for 92 PFAS via UHPLC-MS/MS. Our previous data in the HEC found the highest amount of PFAS contamination at the Rouge River mouth. In addition to evaluating the input of the Rouge River into the HEC, we evaluated the transport of PFAS into the HEC from other major tributaries. PFAS were detected in both surface water and sediment at all sites in this study, with a total of 10 congeners quantified in all surface water samples and 16 congeners quantified in all sediment samples, indicating ubiquitous contamination. Perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) were pervasive in the HEC as these two compounds were detected in all sites and matrices, often at concentrations above the US EPA's recommended lifetime interim updated health advisories. Surface water samples contained more perfluorohexanoic acid (PFHxA) than any other congener, with average aqueous PFHxA across all surface water samples exceeding the average concentration previously reported in the Great Lakes. Sediment samples were dominated by PFOS, but novel congeners, notably 3-Perfluoropentyl propanoic acid (FPePA), were also quantified in sediment. The Rouge River and other tributaries contribute significantly to the PFAS burden in the HEC including Lake Erie. Overall, our results indicate the need for expanding toxicological research and risk assessment focused on congeners such as PFHxA and PFAS mixtures, as well as regulation that is tighter at the onset of production and encompasses PFAS as a group at a national level.
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Affiliation(s)
- Mallory J Llewellyn
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, United States of America.
| | - Emily K Griffin
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, United States of America.
| | - Rachel J Caspar
- Department of Biology, College of Liberal Arts and Sciences, University of Florida, United States of America
| | - Alina S Timshina
- Department of Environmental Engineering Sciences, College of Engineering, University of Florida, United States of America.
| | - John A Bowden
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, United States of America.
| | - Carol J Miller
- Department of Civil and Environmental Engineering, College of Engineering, Wayne State University, United States of America.
| | - Bridget B Baker
- Department of Wildlife Ecology and Conservation, Institute of Food and Agricultural Sciences, University of Florida, United States of America.
| | - Tracie R Baker
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, United States of America; Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, United States of America.
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235
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Baptista LC, Wilson L, Barnes S, Anton SD, Buford TW. Effects of resveratrol on changes in trimethylamine-N-oxide and circulating cardiovascular factors following exercise training among older adults. Exp Gerontol 2024; 194:112479. [PMID: 38871236 DOI: 10.1016/j.exger.2024.112479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/21/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
PURPOSE Trimethylamine-N-oxide (TMAO) is a gut-derived metabolite associated with cardiovascular disease (CVD). In preclinical and observational studies, resveratrol and exercise training have been suggested as potential strategies to reduce the systemic levels of TMAO. However, evidence from experimental studies in humans remains unknown. This project examined the dose-dependent effects of a combined resveratrol intervention with exercise training on circulating TMAO and other related metabolite signatures in older adults with high CVD risk. METHODS Forty-one older adults [mean (±SD) age of 72.1 (6.8) years] participated in a 12-week supervised center-based, multi-component exercise training intervention [2×/week; 80 min/session] and were randomized to one of two resveratrol dosages [Low: 500 vs. High:1000 mg/day] or a cellulose-based placebo. Serum/plasma were collected at baseline and post-intervention and evaluated for TMAO and associated analytes. RESULTS After the 12-week intervention, TMAO concentration increased over time, regardless of treatment [mean (±SD) Placebo: 11262 (±3970); Low:13252 (±1193); High: 12661(±3359) AUC; p = 0.04]. Each resveratrol dose produced different changes in metabolite signatures. Low dose resveratrol upregulated metabolites associated with bile acids biosynthesis (i.e., glycochenodeoxycholic acid, glycoursodeoxycholic acid, and glycocholic acid). High dose resveratrol modulated metabolites enriched for glycolysis, and pyruvate, propanoate, β-alanine, and tryptophan metabolism. Different communities tightly correlated to TMAO and resveratrol metabolites were associated with the lipid and vascular inflammatory clinical markers [|r| > 0.4, p < 0.05]. CONCLUSION These findings suggest a distinct dose-dependent adaptation response to resveratrol supplementation on circulating metabolite signatures but not on TMAO among high-risk CVD older adults when combined with an exercise training intervention.
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Affiliation(s)
- Liliana C Baptista
- University of Coimbra, Faculty of Sport Sciences and Physical Education, Coimbra, Portugal; Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, University of Alabama at Birmingham, Birmingham, AL; USA.
| | - Landon Wilson
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA; Targeted Metabolomics and Proteomics Laboratory, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephen Barnes
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA; Targeted Metabolomics and Proteomics Laboratory, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephen D Anton
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Thomas W Buford
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, University of Alabama at Birmingham, Birmingham, AL; USA; Birmingham/Atlanta VA GRECC, Birmingham VA Medical Center; Birmingham, AL, USA.
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Lamback E, Filho FDC, Ventura N, Chimelli L, Christ-Crain M, Gadelha MR. Extraventricular Neurocytoma of the Sellar Region Presenting With Syndrome of Inappropriate Antidiuresis. JCEM CASE REPORTS 2024; 2:luae099. [PMID: 39156001 PMCID: PMC11327119 DOI: 10.1210/jcemcr/luae099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Indexed: 08/20/2024]
Abstract
Neurocytomas are neuronal tumors that are usually intraventricular. Rare cases can arise from extraventricular sites. To our knowledge, only 29 cases of extraventricular neurocytoma of the sellar region (EVNSR) have been reported in the literature. We describe a case of a 39-year-old woman who presented with a one-month history of refractory headache, nausea and vomiting. Magnetic resonance imaging (MRI) showed a 5.1 × 3.1 × 2.2 cm sellar and suprasellar mass, suggestive of a pituitary adenoma (PA). She had hyponatremia, obstructive hydrocephalus, and panhypopituitarism at presentation (hypogonadism, adrenal insufficiency). After glucocorticoid replacement therapy and ventriculoperitoneal shunt, the vomiting and headache resolved, but she remained with nausea and hyponatremia. She was submitted to surgery, and histopathological analysis revealed a neurocytoma with positive immunostaining for arginine vasopressin. Syndrome of inappropriate antidiuresis (SIAD) was diagnosed but did not resolve after surgery due to residual tumor, despite fluid restriction and saline replacement. SIAD later resolved with empagliflozin. In conclusion, EVNSR is extremely rare and can be misdiagnosed as PA on MRI. In the context of SIAD and extraventricular neurocytoma, a secreting arginine vasopressin tumor must be considered. SIAD can be challenging to treat, with excision of the EVNSR the treatment choice and, alternatively, empagliflozin associated with fluid restriction.
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Affiliation(s)
- Elisa Lamback
- Neuroendocrinology Research Center, Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-617, Brazil
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
- Neuroendocrine Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
| | - Ferdinand Duenas Cabrera Filho
- Neuroradiology Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
| | - Nina Ventura
- Neuroradiology Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
| | - Leila Chimelli
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel 4001, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel 4001, Switzerland
| | - Mônica R Gadelha
- Neuroendocrinology Research Center, Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-617, Brazil
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
- Neuroendocrine Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro 20231-092, Brazil
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237
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Bailey NA, Davis EP, Sandman CA, Glynn LM. DHEA: a neglected biological signal that may affect fetal and child development. J Child Psychol Psychiatry 2024; 65:1145-1155. [PMID: 38426566 DOI: 10.1111/jcpp.13952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/05/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND The stress-sensitive maternal hypothalamic-pituitary-adrenal (HPA) axis through the end-product cortisol, represents a primary pathway through which maternal experience shapes fetal development with long-term consequences for child neurodevelopment. However, there is another HPA axis end-product that has been widely ignored in the study of human pregnancy. The synthesis and release of dehydroepiandosterone (DHEA) is similar to cortisol, so it is a plausible, but neglected, biological signal that may influence fetal neurodevelopment. DHEA also may interact with cortisol to determine developmental outcomes. Surprisingly, there is virtually nothing known about human fetal exposure to prenatal maternal DHEA and offspring neurodevelopment. The current study examined, for the first time, the joint impact of fetal exposure to prenatal maternal DHEA and cortisol on infant emotional reactivity. METHODS Participants were 124 mother-infant dyads. DHEA and cortisol were measured from maternal hair at 15 weeks (early gestation) and 35 weeks (late gestation). Observational assessments of positive and negative emotional reactivity were obtained in the laboratory when the infants were 6 months old. Pearson correlations were used to examine the associations between prenatal maternal cortisol, prenatal maternal DHEA, and infant positive and negative emotional reactivity. Moderation analyses were conducted to investigate whether DHEA might modify the association between cortisol and emotional reactivity. RESULTS Higher levels of both early and late gestation maternal DHEA were linked to greater infant positive emotional reactivity. Elevated late gestation maternal cortisol was associated with greater negative emotional reactivity. Finally, the association between fetal cortisol exposure and infant emotional reactivity was only observed when DHEA was low. CONCLUSIONS These new observations indicate that DHEA is a potential maternal biological signal involved in prenatal programming. It appears to act both independently and jointly with cortisol to determine a child's emotional reactivity. Its role as a primary end-product of the HPA axis, coupled with the newly documented associations with prenatal development shown here, strongly calls for the inclusion of DHEA in future investigations of fetal programming.
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Affiliation(s)
- Natasha A Bailey
- Department of Psychology, University of Virginia, Charlottesville, VA, USA
| | - Elysia Poggi Davis
- Department of Psychology, University of Denver, Denver, CO, USA
- Department of Pediatrics, University of California, Irvine, CA, USA
| | - Curt A Sandman
- Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA
| | - Laura M Glynn
- Department of Psychology, Chapman University, Orange, CA, USA
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Xu Z, Huang J, Wen M, Zhang X, Lyu D, Li S, Xiao H, Li M, Shen C, Huang H. Gentiopicroside ameliorates glucose and lipid metabolism in T2DM via targeting FGFR1. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155780. [PMID: 38885580 DOI: 10.1016/j.phymed.2024.155780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 05/07/2024] [Accepted: 05/26/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND The suppression of the fibroblast growth factor 21/fibroblast growth factor receptor 1 (FGF21/FGFR1) signaling pathway is considered as a vital factor in the type 2 diabetes mellitus (T2DM) progression. Our previous study showed that gentiopicroside (GPS), the main active compound present in Gentiana macrophylla Pall., has the capacity to control disorders related to glucose and lipid metabolism in individuals with T2DM. Nevertheless, the specific mechanism remains unclear. PURPOSE In light of the fact that the PharmMapper database suggests FGFR1 as the target of GPS, our investigation aims to determine if GPS can enhance glucose and lipid metabolism issues in T2DM by modulating the FGF21/FGFR1 signaling pathway. METHODS In this study, we used palmitic acid (PA)-induced HepG2 cells and db/db mice to investigate the function and mechanism of GPS in the FGF21/FGFR1 signaling pathway. To examine the interaction between GPS and FGFR1, researchers performed Cellular Thermal Shift Assay (CETSA) and Surface Plasmon Resonance (SPR) analysis. RESULTS The results suggest that GPS activates the traditional metabolic pathways, including PI3K/AKT and AMPK, which are the subsequent stages of the FGF21/FGFR1 pathway. This activation leads to the enhancement of glucose and lipid metabolism issues in PA-treated HepG2 cells and db/db mice. Furthermore, the depletion of FGFR1 has been noticed to oppose the stimulation of PI3K/AKT and AMPK pathways by GPS in HepG2 cells subjected to PA. Notability, our research affirms that GPS binds directly to FGFR1, hindering the ubiquitinated degradation of FGFR1 by neural precursor cells expressing developmentally decreased protein 4 (NEDD4) and ultimately promoting FGF21 signal transduction. CONCLUSION This study demonstrates that GPS targeting FGFR1 activates the PI3K/AKT and AMPK pathways, which is an important mechanism for its treatment of T2DM.
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Affiliation(s)
- Zhanchi Xu
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China; Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou 510801, China
| | - Jucun Huang
- Hubei NO.3 People's Hospital of Jianghan University, Wuhan 430033, China
| | - Min Wen
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xuting Zhang
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Dongxin Lyu
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shanshan Li
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Haiming Xiao
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Min Li
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Cuangpeng Shen
- Department of Endocrinology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Heqing Huang
- Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou 510801, China.
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239
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Hazan S, Tauber M, Ben-Chaim Y. Voltage dependence of M2 muscarinic receptor antagonists and allosteric modulators. Biochem Pharmacol 2024; 227:116421. [PMID: 38996933 DOI: 10.1016/j.bcp.2024.116421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 06/12/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Muscarinic receptors are G protein-coupled receptors (GPCRs) that play a role in various physiological functions. Previous studies have shown that these receptors, along with other GPCRs, are voltage-sensitive; both their affinity toward agonists and their activation are regulated by membrane potential. To our knowledge, whether the effect of antagonists on these receptors is voltage-dependent has not yet been studied. In this study, we used Xenopus oocytes expressing the M2 muscarinic receptor (M2R) to investigate this question. Our results indicate that the potencies of two M2R antagonists, atropine and scopolamine, are voltage-dependent; they are more effective at resting potential than under depolarization. In contrast, the M2R antagonist AF-DX 386 did not exhibit voltage-dependent potency.Furthermore, we discovered that the voltage dependence of M2R activation by acetylcholine remains unchanged in the presence of two allosteric modulators, the negative modulator gallamine and the positive modulator LY2119620. These findings enhance our understanding of GPCRs' voltage dependence and may have pharmacological implications.
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Affiliation(s)
- Shimrit Hazan
- Department of Natural Sciences, The Open University of Israel, Ra'anana, Israel
| | - Merav Tauber
- Department of Natural Sciences, The Open University of Israel, Ra'anana, Israel
| | - Yair Ben-Chaim
- Department of Natural Sciences, The Open University of Israel, Ra'anana, Israel.
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240
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Nagaraj G, Vellaichamy E. Triiodo-L-thyronine (T3) downregulates Npr1 gene (coding for natriuretic peptide receptor-A) transcription in H9c2 cells: involvement of β-AR-ROS signaling. Endocrine 2024; 85:1075-1090. [PMID: 38713329 DOI: 10.1007/s12020-024-03849-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 04/20/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION Natriuretic peptide receptor-A (NPR-A) signaling system is considered as an intrinsic productive mechanism of the heart that opposes abnormal cardiac remodeling and hypertrophic growth. NPR-A is coded by Npr1 gene, and its expression is downregulated in the hypertrophied heart. AIM We sought to examine the levels of Npr1 gene transcription in triiodo-L-thyronine (T3) treated hypertrophied cardiomyocyte (H9c2) cells, in vitro, and also the involvement of β-adrenergic receptor (β-AR) - Reactive oxygen species (ROS) signaling system in the down-regulation of Npr1 transcription also studied. MAIN METHODS Anti-hypertrophic Npr1 gene transcription was monitored in control and T3-treated (dose and time dependent) H9c2 cells, using a real time PCR method. Further, cell size, intracellular cGMP, ROS, hypertrophy markers (ANP, BNP, α-sk, α-MHC and β-MHC), β-AR, and protein kinase cGMP-dependent 1 (PKG-I) genes expression were also determined. The intracellular cGMP and ROS levels were determined by ELISA and DCF dye method, respectively. In addition, to neutralize T3 mediated ROS generation, H9c2 cells were treated with T3 in the presence and absence of antioxidants [curcumin (CU) or N-acetyl-L-cysteine (NAC)]. RESULTS A dose dependent (10 pM, 100 pM, 1 nM and 10 nM) and time dependent (12 h, 24 h and 48 h) down-regulation of Npr1 gene transcription (20, 39, 60, and 74% respectively; 18, 55, and 85%, respectively) were observed in T3-treated H9c2 cells as compared with control cells. Immunofluorescence analysis also revealed that a marked down regulation of NPR- A protein in T3-treated cells as compared with control cells. Further, a parallel downregulation of cGMP and PKG-I (2.4 fold) were noticed in the T3-treated cells. In contrast, a time dependent increased expression of β-AR (60, 72, and 80% respectively) and ROS (26, 48, and 74%, respectively) levels were noticed in T3-treated H9c2 cells as compared with control cells. Interestingly, antioxidants, CU or NAC co-treated T3 cells displayed a significant reduction in ROS (69 and 81%, respectively) generation and to increased Npr1 gene transcription (81 and 88%, respectively) as compared with T3 alone treated cells. CONCLUSION Our result suggest that down regulation of Npr1 gene transcription is critically involved in T3- induced hypertrophic growth in H9c2 cells, and identifies the cross-talk between T3-β-AR-ROS and NPR-A signaling.
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Affiliation(s)
- Gopinath Nagaraj
- Peptide Research and Molecular Cardiology Unit, Department of Biochemistry, University of Madras, Guindy campus, Chennai, Tamil Nadu, 600025, India
| | - Elangovan Vellaichamy
- Peptide Research and Molecular Cardiology Unit, Department of Biochemistry, University of Madras, Guindy campus, Chennai, Tamil Nadu, 600025, India.
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241
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Aguirre-Rodríguez CA, Delgado A, Alatorre A, Oviedo-Chávez A, Martínez-Escudero JR, Barrientos R, Querejeta E. Local activation of CB1 receptors by synthetic and endogenous cannabinoids dampens burst firing mode of reticular thalamic nucleus neurons in rats under ketamine anesthesia. Exp Brain Res 2024; 242:2137-2157. [PMID: 38980339 DOI: 10.1007/s00221-024-06889-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024]
Abstract
The reticular thalamic nucleus (RTN) is a thin shell that covers the dorsal thalamus and controls the overall information flow from the thalamus to the cerebral cortex through GABAergic projections that contact thalamo-cortical neurons (TC). RTN neurons receive glutamatergic afferents fibers from neurons of the sixth layer of the cerebral cortex and from TC collaterals. The firing mode of RTN neurons facilitates the generation of sleep-wake cycles; a tonic mode or desynchronized mode occurs during wake and REM sleep and a burst-firing mode or synchronized mode is associated with deep sleep. Despite the presence of cannabinoid receptors CB1 (CB1Rs) and mRNA that encodes these receptors in RTN neurons, there are few works that have analyzed the participation of endocannabinoid-mediated transmission on the electrical activity of RTN. Here, we locally blocked or activated CB1Rs in ketamine anesthetized rats to analyze the spontaneous extracellular spiking activity of RTN neurons. Our results show the presence of a tonic endocannabinoid input, since local infusion of AM 251, an antagonist/inverse agonist, modifies RTN neurons electrical activity; furthermore, local activation of CB1Rs by anandamide or WIN 55212-2 produces heterogeneous effects in the basal spontaneous spiking activity, where the main effect is an increase in the spiking rate accompanied by a decrease in bursting activity in a dose-dependent manner; this effect is inhibited by AM 251. In addition, previous activation of GABA-A receptors suppresses the effects of CB1Rs on reticular neurons. Our results show that local activation of CB1Rs primarily diminishes the burst firing mode of RTn neurons.
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Affiliation(s)
- Carlos A Aguirre-Rodríguez
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
| | - Alfonso Delgado
- Departamento de Fisiología Experimental, Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito Universitario Campus II, 31127, Chihuahua, Chihuahua, México
| | - Alberto Alatorre
- Academia de Fisiología, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
| | - Aldo Oviedo-Chávez
- Academia de Fisiología, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
| | - José R Martínez-Escudero
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
| | - Rafael Barrientos
- Academia de Fisiología, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México
| | - Enrique Querejeta
- Academia de Fisiología, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México.
- Sección de Investigación y Posgrado de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Colonia Casco de Santo Tomás, Ciudad de México, 11340, México.
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242
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Das S, Friedrich NA, Daniels J, Galvan GC, Gong J, Posadas E, Aronson W, Freedland SJ. Relative search popularity of five advanced prostate cancer medications using Google Trends. Prostate Cancer Prostatic Dis 2024; 27:457-461. [PMID: 37679603 PMCID: PMC11019934 DOI: 10.1038/s41391-023-00716-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/27/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND There are many FDA-approved drugs for advanced prostate cancer (PC), yet public interest in these drugs is not well understood. We compared public interest and state-level predictors of interest in five common oral adjunctive hormonal therapies. METHODS Google Trends™ was queried for: "Enzalutamide", "Abiraterone Acetate", "Bicalutamide", "Apalutamide", and "Darolutamide" in the United States from January 2004 to November 2022. Data are presented as relative search index (RSI) by month. RSI ranges from 0 to 100 with 100 being peak popularity, 50 being half of the peak popularity, and 0 representing insufficient data to be determined. RESULTS Several drugs abruptly increased in popularity following FDA approval including abiraterone, enzalutamide, and apalutamide. All drugs decreased in popularity from January 2020 to July 2020, corresponding with the COVID-19 pandemic. In the most recent 5 years, enzalutamide and abiraterone were the most common searched drugs, with bicalutamide a close 3rd place. States that did not expand Medicaid were significantly more likely to have bicalutamide as the top search drug vs. states that expanded Medicaid (p = 0.012). Across all states with data (n = 39), higher bicalutamide RSIs were significantly associated with lower household income (r = 0.385, p = 0.02) and greater percent of uninsured adults (r = 0.426, p = 0.007). This is the first study using Google Trends to compare advanced PC drugs by search popularity. CONCLUSIONS Despite the emergence of more effective medications, bicalutamide remains relatively popular, particularly in states with lower household income, more uninsured adults, or those that did not expand Medicaid, possibly due to its lower cost.
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Affiliation(s)
- Sanjay Das
- Department of Urology, University of California - Los Angeles, Los Angeles, CA, USA.
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Durham Veterans Affairs Health Care System, Department of Surgery, Durham, NC, USA.
| | - Nadine A Friedrich
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - James Daniels
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - G Cecilia Galvan
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jun Gong
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Edwin Posadas
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - William Aronson
- Department of Urology, University of California - Los Angeles, Los Angeles, CA, USA
- Greater Los Angeles Veterans Affairs, Los Angeles, CA, USA
| | - Stephen J Freedland
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Durham Veterans Affairs Health Care System, Department of Surgery, Durham, NC, USA
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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243
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Fato BR, de Alwis N, Beard S, Binder NK, Pritchard N, Kaitu'u-Lino TJ, Bubb KJ, Hannan NJ. Exploring the Therapeutic Potential of C-Type Natriuretic Peptide for Preeclampsia. Hypertension 2024; 81:1883-1894. [PMID: 39016006 DOI: 10.1161/hypertensionaha.124.22820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/21/2024] [Indexed: 07/18/2024]
Abstract
BACKGROUND Preeclampsia is a serious condition of pregnancy, complicated by aberrant maternal vascular dysfunction. CNP (C-type natriuretic peptide) contributes to vascular homeostasis, acting through NPR-B (natriuretic peptide receptor-B) and NPR-C (natriuretic peptide receptor-C). CNP mitigates vascular dysfunction of arteries in nonpregnant cohorts; this study investigates whether CNP can dilate maternal arteries in ex vivo preeclampsia models. METHODS Human omental arteries were dissected from fat biopsies collected during cesarean section. CNP, NPR-B, and NPR-C mRNA expression was assessed in arteries collected from pregnancies complicated by preeclampsia (n=6) and normotensive controls (n=11). Using wire myography, we investigated the effects of CNP on dilation of arteries from normotensive pregnancies. Arteries were preconstricted with either serum from patients with preeclampsia (n=6) or recombinant ET-1 (endothelin-1; vasoconstrictor elevated in preeclampsia; n=6) to model vasoconstriction associated with preeclampsia. Preconstricted arteries were treated with recombinant CNP (0.001-100 µmol/L) or vehicle and vascular relaxation assessed. In further studies, arteries were preincubated with NPR-B (5 µmol/L) and NPR-C (10 µmol/L) antagonists before serum-induced constriction (n=4-5) to explore mechanistic signaling. RESULTS CNP, NPR-B, and NPR-C mRNAs were not differentially expressed in omental arteries from preeclamptic pregnancies. CNP potently stimulated maternal artery vasorelaxation in our model of preeclampsia (using preeclamptic serum). Its vasodilatory actions were driven through the activation of NPR-B predominantly; antagonism of this receptor alone dampened CNP vasorelaxation. Interestingly, CNP did not reduce ET-1-driven omental artery constriction. CONCLUSIONS Collectively, these data suggest that enhancing CNP signaling through NPR-B offers a potential therapeutic strategy to reduce systemic vascular constriction in preeclampsia.
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Affiliation(s)
- Bianca R Fato
- Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Natasha de Alwis
- Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Sally Beard
- Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Natalie K Binder
- Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Natasha Pritchard
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Tu'uhevaha J Kaitu'u-Lino
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
| | - Kristen J Bubb
- Department of Physiology, Biomedicine Discovery Institute (K.J.B.), Monash University, Clayton, Victoria, Australia
- Victorian Heart Institute, Faculty of Medicine, Nursing and Health Sciences (K.J.B.), Monash University, Clayton, Victoria, Australia
| | - Natalie J Hannan
- Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
- Department of Obstetrics, Gynecology and Newborn Health, Mercy Hospital for Women (B.R.F., N.d.A., S.B., N.K.B., N.P., T.J.K.-L., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia
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Wu B, Lu J, Wei D, Wang C, Mao Z, Liu P. The association of cortisol, testosterone, and cortisol/testosterone ratio with stroke: A cross-sectional study. J Stroke Cerebrovasc Dis 2024; 33:107821. [PMID: 38878843 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 07/15/2024] Open
Abstract
AIMS We aimed to investigate the association between serum cortisol, testosterone, and cortisol/testosterone (C/T) ratio and stroke. MATERIALS AND METHODS A total of 6157 subjects were included in this study. The serum levels of cortisol and testosterone were determined by liquid chromatography-tandem mass spectrometry method. The relationships of serum cortisol, testosterone, and C/T ratio levels with the odds ratios (ORs) of stroke were calculated using logistic regression analysis. The dose-response associations between serum cortisol, testosterone, and C/T ratio levels with stroke estimated by restricted cubic splines. RESULTS After adjusting for multiple variables, serum testosterone levels were negactively associated with stroke in males (per 1 unit, odds ratio (OR) = 0.83, 95 % confidence interval (CI): 0.70, 0.97). The serum C/T ratio is positively associated with stroke in both males and females (OR = 1.16, 95 % CI:1.04,1.34 in males and OR = 1.15, 95 % CI:1.02,1.31 in females). Restricted cubic splines showed a significant linear dose-response relationship between testosterone and C/T ratio and stroke in males (P for overall association <0.05, P for nonlinearity >0.05). CONCLUSION Our study findings show that serum testosterone levels are negatively correlated with stroke in males; meanwhile, serum C/T ratio is positively correlated with stroke in both males and females.
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Affiliation(s)
- Beibei Wu
- The Fifth Affiliated Hospital of Zhengzhou University, Henan, PR China
| | - Jianyuan Lu
- Xinxiang Municipal Government Hospital, Henan, PR China
| | - Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, PR China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, PR China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, PR China.
| | - Pengling Liu
- Zhengzhou Seventh People's Hospital Medical Affairs Department, No. 17 Jingnan 5th Road, Zhengzhou, 450016, Henan, PR China.
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Winther JB, Holst JJ. Glucagon agonism in the treatment of metabolic diseases including type 2 diabetes mellitus and obesity. Diabetes Obes Metab 2024; 26:3501-3512. [PMID: 38853300 DOI: 10.1111/dom.15693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/18/2024] [Accepted: 05/18/2024] [Indexed: 06/11/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is associated with obesity and, therefore, it is important to target both overweight and hyperglycaemia. Glucagon plays important roles in glucose, amino acid and fat metabolism and may also regulate appetite and energy expenditure. These physiological properties are currently being exploited therapeutically in several compounds, most often in combination with glucagon-like peptide-1 (GLP-1) agonism in the form of dual agonists. With this combination, increases in hepatic glucose production and hyperglycaemia, which would be counterproductive, are largely avoided. In multiple randomized trials, the co-agonists have been demonstrated to lead to significant weight loss and, in participants with T2DM, even improved glycated haemoglobin (HbA1c) levels. In addition, significant reductions in hepatic fat content have been observed. Here, we review and discuss the studies so far available. Twenty-six randomized trials of seven different GLP-1 receptor (GLP-1R)/glucagon receptor (GCGR) co-agonists were identified and reviewed. GLP-1R/GCGR co-agonists generally provided significant weight loss, reductions in hepatic fat content, improved lipid profiles, insulin secretion and sensitivity, and in some cases, improved HbA1c levels. A higher incidence of adverse effects was present with GLP-1R/GCGR co-agonist treatment than with GLP-1 agonist monotherapy or placebo. Possible additional risks associated with glucagon agonism are also discussed. A delicate balance between GLP-1 and glucagon agonism seems to be of particular importance. Further studies exploring the optimal ratio of GLP-1 and glucagon receptor activation and dosage and titration regimens are needed to ensure a sufficient safety profile while providing clinical benefits.
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Affiliation(s)
- Jonathan Brix Winther
- Department of Biomedical Sciences and the NovoNordisk Foundation Centre for Basic Metabolic Research, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Juul Holst
- Department of Biomedical Sciences and the NovoNordisk Foundation Centre for Basic Metabolic Research, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Hu Y, Zou F, Lu W. Sex hormones and neuromyelitis optica spectrum disorder: a bidirectional Mendelian randomization study. Neurol Sci 2024; 45:4471-4479. [PMID: 38565746 DOI: 10.1007/s10072-024-07501-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Females are considered to have an increased susceptibility to neuromyelitis optica spectrum disorder (NMOSD) than males, especially aquaporin-4 (AQP4) antibody positive NMOSD, indicating that sex hormones may be involved in the NMOSD pathogenesis. However, the causality between sex hormones and NMOSD still remains unclear. METHODS Based on the genome-wide association study (GWAS) data of three sex hormones (estradiol (E2), progesterone (PROG) and bioavailable testosterone (BAT)), sex hormone-binding globulin (SHBG), age of menarche, age of menopause, and NMOSD (total, AQP4 + and AQP4 -), we performed a two-sample bidirectional Mendelian randomization (MR) study. Sex-stratified GWAS data of E2, PROG, BAT, and SHBG was obtained for gender-specific MR analysis. Causal inferences were based on the inverse variance weighted method, MR-Egger regression, and weighted median method. The reverse MR analysis was also performed to assess the impact of NMOSD on hormone levels. RESULTS PROG in females had aggravative effects on NMOSD (P < 0.001), especially AQP4 - NMOSD (P < 0.001). In the reverse MR analysis, total NMOSD was found to decrease the level of BAT (P < 0.001) and increase the level of SHBG (P = 0.001) in females. CONCLUSION Findings of this MR analysis revealed mutual causal associations between sex hormones and NMOSD, which provided novel perspectives about the gender-related pathogenesis of NMOSD.
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Affiliation(s)
- Yaxian Hu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Fei Zou
- Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Research Center of Digestive Disease, Central South University, Changsha, 410011, China
- Clinical Research Center for Digestive Disease in Hunan Province, Changsha, 410011, China
| | - Wei Lu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, China.
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Wang Y, Li F, Gao X, Yu H, Du Z, Li L, Du Y, Hu C, Qin Y. miR-181d-5p ameliorates hypercholesterolemia by targeting PCSK9. J Endocrinol 2024; 262:e230402. [PMID: 38940622 PMCID: PMC11301420 DOI: 10.1530/joe-23-0402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/27/2024] [Indexed: 06/29/2024]
Abstract
Hypercholesterolemia is an independent risk factor for cardiovascular disease and lowering circulating levels of low-density lipoprotein cholesterol (LDL-C) can prevent and reduce cardiovascular events. MicroRNA-181d (miR-181d) can reduce the levels of triglycerides and cholesterol esters in cells. However, it is not known whether miR-181d-5p can lower levels of circulating LDL-C. Here, we generated two animal models of hypercholesterolemia to analyze the potential relationship between miR-181d-5p and LDL-C. In hypercholesterolemia model mice, adeno-associated virus (AAV)-mediated liver-directed overexpression of miR-181d-5p decreased the serum levels of cholesterol and LDL-C and the levels of cholesterol and triglyceride in the liver compared with control mice. Target Scan 8.0 indicated Proprotein convertase subtilisin/kexin type 9 (PCSK9) to be a possible target gene of miR-181d-5p, which was confirmed by in vitro experiments. miR-181d-5p could directly interact with both the PCSK9 3'-UTR and promoter to inhibit PCSK9 translation and transcription. Furthermore, Dil-LDL uptake assays in PCSK9 knockdown Huh7 cells demonstrated that miR-181d-5p promotion of LDL-C absorption was dependent on PCSK9. Collectively, our findings show that miR-181d-5p targets the PCSK9 3'-UTR to inhibit PCSK9 expression and to reduce serum LDL-C. miR-181d-5p is therefore a new therapeutic target for the development of anti-hypercholesterolemia drugs.
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Affiliation(s)
- Yu Wang
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Fan Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xiaoqian Gao
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Huahui Yu
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhiyong Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Linyi Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yunhui Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chaowei Hu
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yanwen Qin
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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248
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Zhaoyu L, Xiaomeng Y, Na L, Jiamin S, Guanhua D, Xiuying Y. Roles of natural products on myokine expression and secretion in skeletal muscle atrophy. Gen Comp Endocrinol 2024; 355:114550. [PMID: 38768928 DOI: 10.1016/j.ygcen.2024.114550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Skeletal muscles serve both in movement and as endocrine organs. Myokines secreted by skeletal muscles activate biological functions within muscles and throughout the body via autocrine, paracrine, and/or endocrine pathways. Skeletal muscle atrophy can influence myokine expression and secretion, while myokines can impact the structure and function of skeletal muscles. Regulating the expression and secretion of myokines through the pharmacological approach is a strategy for alleviating skeletal muscle atrophy. Natural products possess complex structures and chemical properties. Previous studies have demonstrated that various natural products exert beneficial effects on skeletal muscle atrophy. This article reviewed the regulatory effects of natural products on myokines and summarized the research progress on skeletal muscle atrophy associated with myokine regulation. The focus is on how small-molecule natural products affect the regulation of interleukin 6 (IL-6), irisin, myostatin, IGF-1, and FGF-21 expression. We contend that the development of small-molecule natural products targeting the regulation of myokines holds promise in combating skeletal muscle atrophy.
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Affiliation(s)
- Liu Zhaoyu
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Ye Xiaomeng
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Li Na
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Shang Jiamin
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Du Guanhua
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
| | - Yang Xiuying
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
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249
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Vecchiola A, Uslar T, Friedrich I, Aguirre J, Sandoval A, Carvajal CA, Tapia-Castillo A, Martínez-García A, Fardella CE. The role of sex hormones in aldosterone biosynthesis and their potential impact on its mineralocorticoid receptor. Cardiovasc Endocrinol Metab 2024; 13:e0305. [PMID: 38846628 PMCID: PMC11155591 DOI: 10.1097/xce.0000000000000305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/22/2024] [Indexed: 06/09/2024]
Abstract
Blood pressure (BP) regulation is a complex process involving various hormones, including aldosterone and its mineralocorticoid receptor. Mineralocorticoid receptor is expressed in several tissues, including the kidney, and plays a crucial role in regulating BP by controlling the sodium and water balance. During different stages of life, hormonal changes can affect mineralocorticoid receptor activity and aldosterone levels, leading to changes in BP. Increasing evidence suggests that sex steroids modulate aldosterone levels. Estrogens, particularly estradiol, mediate aldosterone biosynthesis by activating classical estrogen receptors and the G protein-coupled receptor. Progesterone acts as an anti-mineralocorticoid by inhibiting the binding of aldosterone to the mineralocorticoid receptor. Moreover, progesterone inhibits aldosterone synthase enzymes. The effect of testosterone on aldosterone synthesis is still a subject of debate. However, certain studies show that testosterone downregulates the mRNA levels of aldosterone synthase, leading to decreased plasma aldosterone levels.
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Affiliation(s)
- Andrea Vecchiola
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
| | - Thomas Uslar
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
| | - Isidora Friedrich
- Departamento de Endocrinologìa, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago
| | - Joaquin Aguirre
- Departamento de Endocrinologìa, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago
| | - Alejandra Sandoval
- Escuela de Tecnología Médica, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Cristian A. Carvajal
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
| | - Alejandra Tapia-Castillo
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
| | - Alejandra Martínez-García
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
| | - Carlos E. Fardella
- Departamento de Endocrinología, Facultad de Medicina, Centro Traslacional de Endocrinología UC (CETREN), Pontificia Universidad Católica de Chile
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250
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Guzmán-García JM, Romero-Saldaña M, Molina-Recio G, Álvarez-Fernández C, Jiménez-Mérida MDR, Molina-Luque R. Relationship between commonly defined metabolic health phenotypes and obesity with lung function in a working population: A cross-sectional study. Heart Lung 2024; 67:62-69. [PMID: 38703640 DOI: 10.1016/j.hrtlng.2024.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/10/2024] [Accepted: 04/20/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Four phenotypes relate metabolism and obesity: metabolically healthy (MHO) and unhealthy (MUO) people with obesity and metabolically healthy (MHNO) and unhealthy (MUNO) people without obesity. No studies have addressed the association between these categories and lung function in the working population. OBJECTIVES The aim was to determine the relationship of phenotypes to lung ageing as measured by lung age and its relationship to lung dysfunction. METHODS A descriptive cross-sectional study was conducted in a working population. The outcome variable was lung function assessed by lung age. The four phenotypes of obesity and metabolic health (MHNO, MHO, MUO and MUNO) were determined using NCEP-ATP III criteria. Lung dysfunctions were classified into restrictive, obstructive, and mixed patterns. RESULTS The mean age of the participants was 43.7 years, ranging from 18 to 67 years. Of the 1860 workers, 51.3 % were women. The prevalences found were 71.4 %, 12 %, 10.6 % and 6 % for MHNO, MUO, MHO, and MUNO, respectively. MHO (β = 0.66; p = 0.591) was not associated with increased lung ageing compared with MHNO, but MUO (β = 7.1; p < 0.001) and MUNO (β = 6.6; p < 0.001) were. Concerning pulmonary dysfunctions, MUNO (OR = 1.93; p < 0.001) and MUO (OR = 2.91; p < 0.001) were found to be related to the presence of a restrictive pattern, and MUNO (OR = 2.40; p = 0.028) to the mixed pattern. CONCLUSION The results show that metabolic abnormalities, not obesity, are responsible for premature lung ageing and, therefore, lung function decline. In our study, having obesity without metabolic abnormality was not significantly associated with the presence of dysfunctional respiratory patterns.
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Affiliation(s)
- José-Miguel Guzmán-García
- Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain
| | - Manuel Romero-Saldaña
- Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; Lifestyles, Innovation and Health Research Associate Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain.
| | - Guillermo Molina-Recio
- Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; Lifestyles, Innovation and Health Research Associate Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain
| | - Carlos Álvarez-Fernández
- Department of Occupational Health and Safety, Cordoba City Council, Huerto de San Pedro el Real, Cordoba, Spain
| | - María Del Rocío Jiménez-Mérida
- Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain
| | - Rafael Molina-Luque
- Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; Lifestyles, Innovation and Health Research Associate Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain
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