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Bocian-Jastrzębska A, Malczewska-Herman A, Kos-Kudła B. Role of Leptin and Adiponectin in Carcinogenesis. Cancers (Basel) 2023; 15:4250. [PMID: 37686525 PMCID: PMC10486522 DOI: 10.3390/cancers15174250] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Hormones produced by adipocytes, leptin and adiponectin, are associated with the process of carcinogenesis. Both of these adipokines have well-proven oncologic potential and can affect many aspects of tumorigenesis, from initiation and primary tumor growth to metastatic progression. Involvement in the formation of cancer includes interactions with the tumor microenvironment and its components, such as tumor-associated macrophages, cancer-associated fibroblasts, extracellular matrix and matrix metalloproteinases. Furthermore, these adipokines participate in the epithelial-mesenchymal transition and connect to angiogenesis, which is critical for cancer invasiveness and cancer cell migration. In addition, an enormous amount of evidence has demonstrated that altered concentrations of these adipocyte-derived hormones and the expression of their receptors in tumors are associated with poor prognosis in various types of cancer. Therefore, leptin and adiponectin dysfunction play a prominent role in cancer and impact tumor invasion and metastasis in different ways. This review clearly and comprehensively summarizes the recent findings and presents the role of leptin and adiponectin in cancer initiation, promotion and progression, focusing on associations with the tumor microenvironment and its components as well as roles in the epithelial-mesenchymal transition and angiogenesis.
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Affiliation(s)
- Agnes Bocian-Jastrzębska
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland; (A.M.-H.); (B.K.-K.)
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Jakubek-Kipa K, Galiniak S, Łagowska K, Krupa I, Ludwin A, Tabarkiewicz J, Mazur A. Bio leptin as a useful marker of metabolic status in children with diabetes mellitus type 1. Front Endocrinol (Lausanne) 2023; 14:1235409. [PMID: 37670877 PMCID: PMC10475937 DOI: 10.3389/fendo.2023.1235409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/02/2023] [Indexed: 09/07/2023] Open
Abstract
Introduction The purpose of our study was tomeasure the level of leptin and biologically active leptin (bioLEP) in children with type 1 diabetes, depending on the duration of diabetes and its degree of metabolic control. Methods The study included 94 children (58 boys and 36 girls). In a group of children with diabetes, 40 patients were newly diagnosed with type 1 diabetes, 40 children who have diabetes for more than a year (20 with good metabolic control and 20 with poor metabolic control). The control group consisted of 14 healthy children. The serum level of leptin and bioLEP was measured using a sandwich enzyme-linked immunosorbent assay. To our knowledge, this is the first study to describe bioLEP levels among diabetic children with different forms of disease control. Results Lower levels of leptin were found in children with diabetes compared to healthy children. Furthermore, we found a statistically higher concentration of leptin in the group of children with newly diagnosed diabetes compared to children from the diabetic group with poor metabolic control and lower than healthy children (11.19 vs. 7.84 and 20.94 ng/mL). Moreover, children in the metabolically well-controlled group had statistically lower levels of this hormone (5.11 ng/mL) than healthy children. Leptin concentrations differed significantly between underweight, overweight, and obese children. Discussion In our study, the level of bioLEP differed significantly between children in the newly diagnosed diabetes group and children in the long-term, poorly controlled diabetes group and healthy controls. Despite many studies published in recent years, many aspects of leptin secretion, action, and mechanisms of its influence on carbohydrate and fat metabolism are still to be clarified. In our opinion, studies evaluating the status of bioLEP in diabetes can also contribute to a better understanding of the mechanisms regulating metabolism.
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Affiliation(s)
- Katarzyna Jakubek-Kipa
- Department of Pediatrics, Institute of Medical Sciences, Medical College of Rzeszów University, Rzeszów, Poland
| | - Sabina Galiniak
- Department of Biochemistry and General Chemistry, Institute of Medical Sciences, Medical College of Rzeszów University, Rzeszów, Poland
| | - Katarzyna Łagowska
- Laboratory for Translational Research in Medicine, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszów University, Rzeszow, Poland
| | - Izabela Krupa
- Laboratory for Translational Research in Medicine, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszów University, Rzeszow, Poland
| | - Aleksandra Ludwin
- Laboratory for Translational Research in Medicine, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszów University, Rzeszow, Poland
| | - Jacek Tabarkiewicz
- Laboratory for Translational Research in Medicine, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszów University, Rzeszow, Poland
- Department of Human Immunology, Institute of Medical Sciences, Medical College of Rzeszów University, Rzeszów, Poland
| | - Artur Mazur
- Department of Pediatrics, Institute of Medical Sciences, Medical College of Rzeszów University, Rzeszów, Poland
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153
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Marshall T, Chen J, Viloria-Petit AM. Adipocyte-Derived Adipokines and Other Obesity-Associated Molecules in Feline Mammary Cancer. Biomedicines 2023; 11:2309. [PMID: 37626804 PMCID: PMC10452835 DOI: 10.3390/biomedicines11082309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/30/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Obesity has been identified as a serious health concern in domestic cats. Feline mammary cancer (FMC) is also a concern, as it is highly prevalent and aggressive. Considering the identified connection between obesity and breast cancer, it is worthwhile to investigate the potential obesity-cancer relationship in FMC. This review investigated the association between adipokines and other obesity-associated molecules and FMC, with the aim of identifying gaps in the current literature for future research. Based on the reports to date, it was found that tissue concentrations of leptin, serum concentrations of leptin receptor, serum amyloid A, and estrogen correlate positively with FMC, and serum concentrations of leptin correlate negatively with FMC. The roles of adiponectin and prolactin in FMC development were also investigated, but the reports are either lacking or insufficient to suggest an association. Numerous research gaps were identified and could be used as opportunities for future research. These include the need for studies on additional cohorts to confirm the association of leptin/leptin receptor and serum amyloid A with FMC, and to address the role of adiponectin and prolactin in FMC. It is also important to investigate the genetic determinants of FMC, evaluate the use of molecular-targeted therapies in FMC, and exploit the enrichment of the triple-negative immunophenotype in FMC to address current clinical needs for both human triple-negative breast cancer and FMC. Finally, mechanistic studies with any of the molecules reviewed are scarce and are important to generate hypotheses and ultimately advance our knowledge and the outcome of FMC.
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Affiliation(s)
| | | | - Alicia M. Viloria-Petit
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (T.M.); (J.C.)
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154
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Besci Ö, Fırat SN, Özen S, Çetinkaya S, Akın L, Kör Y, Pekkolay Z, Özalkak Ş, Özsu E, Erdeve ŞS, Poyrazoğlu Ş, Berberoğlu M, Aydın M, Omma T, Akıncı B, Demir K, Oral EA. A National Multicenter Study of Leptin and Leptin Receptor Deficiency and Systematic Review. J Clin Endocrinol Metab 2023; 108:2371-2388. [PMID: 36825860 DOI: 10.1210/clinem/dgad099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/25/2023] [Accepted: 02/15/2023] [Indexed: 02/25/2023]
Abstract
CONTEXT Homozygous leptin (LEP) and leptin receptor (LEPR) variants lead to childhood-onset obesity. OBJECTIVE To present new cases with LEP and LEPR deficiency, report the long-term follow-up of previously described patients, and to define, based on all reported cases in literature, genotype-phenotype relationships. METHODS Our cohort included 18 patients (LEP = 11, LEPR = 7), 8 of whom had been previously reported. A systematic literature review was conducted in July 2022. Forty-two of 47 studies on LEP/LEPR were selected. RESULTS Of 10 new cases, 2 novel pathogenic variants were identified in LEP (c.16delC) and LEPR (c.40 + 5G > C). Eleven patients with LEP deficiency received metreleptin, 4 of whom had been treated for over 20 years. One patient developed loss of efficacy associated with neutralizing antibody development. Of 152 patients, including 134 cases from the literature review in addition to our cases, frameshift variants were the most common (48%) in LEP and missense variants (35%) in LEPR. Patients with LEP deficiency were diagnosed at a younger age [3 (9) vs 7 (13) years, P = .02] and had a higher median body mass index (BMI) SD score [3.1 (2) vs 2.8 (1) kg/m2, P = 0.02], which was more closely associated with frameshift variants (P = .02). Patients with LEP deficiency were more likely to have hyperinsulinemia (P = .02). CONCLUSION Frameshift variants were more common in patients with LEP deficiency whereas missense variants were more common in LEPR deficiency. Patients with LEP deficiency were identified at younger ages, had higher BMI SD scores, and had higher rates of hyperinsulinemia than patients with LEPR deficiency. Eleven patients benefitted from long-term metreleptin, with 1 losing efficacy due to neutralizing antibodies.
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Affiliation(s)
- Özge Besci
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir 35340, Turkey
| | - Sevde Nur Fırat
- Division of Endocrinology and Metabolism, University of Health Sciences Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Samim Özen
- Division of Pediatric Endocrinology, Faculty of Medicine, Ege University, İzmir 35100, Turkey
| | - Semra Çetinkaya
- Division of Pediatric Endocrinology, Health Sciences University, Dr Sami Ulus Obstetrics and Gynecology, Children's Health and Disease, Health Implementation and Research Center, Ankara 06010, Turkey
| | - Leyla Akın
- Division of Pediatric Endocrinology, Faculty of Medicine, Ondokuz Mayıs University, Samsun 55030, Turkey
| | - Yılmaz Kör
- Division of Pediatric Endocrinology, Ministry of Health, Adana Public Hospitals Association, Adana City Hospital, Adana 01040, Turkey
| | - Zafer Pekkolay
- Division of Endocrinology and Metabolism, Dicle University Faculty of Medicine, Diyarbakır 21280, Turkey
| | - Şervan Özalkak
- Division Pediatric Endocrinology, Diyarbakir Gazi Yaşargil Training and Research Hospital, Diyarbakır 21070, Turkey
| | - Elif Özsu
- Department of Pediatric Endocrinology, Ankara University Faculty of Medicine, Ankara 06100, Turkey
| | - Şenay Savaş Erdeve
- Division of Pediatric Endocrinology, Health Sciences University, Dr Sami Ulus Obstetrics and Gynecology, Children's Health and Disease, Health Implementation and Research Center, Ankara 06010, Turkey
| | - Şükran Poyrazoğlu
- Department of Pediatric Endocrinology, Istanbul University Istanbul Faculty of Medicine, İstanbul 34098, Turkey
| | - Merih Berberoğlu
- Department of Pediatric Endocrinology, Ankara University Faculty of Medicine, Ankara 06100, Turkey
| | - Murat Aydın
- Division of Pediatric Endocrinology, Faculty of Medicine, Ondokuz Mayıs University, Samsun 55030, Turkey
| | - Tülay Omma
- Division of Endocrinology and Metabolism, University of Health Sciences Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Barış Akıncı
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Dokuz Eylul University, İzmir 35340, Turkey
| | - Korcan Demir
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, İzmir 35340, Turkey
| | - Elif Arioglu Oral
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48105, USA
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Chan CW, Lin BF. Folate Deficiency Enhanced Inflammation and Exacerbated Renal Fibrosis in High-Fat High-Fructose Diet-Fed Mice. Nutrients 2023; 15:3616. [PMID: 37630806 PMCID: PMC10458828 DOI: 10.3390/nu15163616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
The prevalence of obesity and chronic kidney disease (CKD) is increasing simultaneously and rapidly worldwide. Our previous study showed that folate deficiency increased lipid accumulation and leptin production of adipocytes. Whether folate plays a role in CKD, particularly obesity-related nephropathy remains unclear. To investigate the effects of folate deficiency on CKD in diet-induced obese mice, four groups of male C57BL/6 mice were fed either a normal-fat diet (NF) with folate (NF+f); NF without folate (NF-f); high-fat high-fructose diet (HFF) with folate (HFF+f); or HFF without folate (HFF-f) for 12 months during the study. The results showed that HFF increased not only body weight, fasting blood glucose, total cholesterol (TC), low-density lipoprotein (LDL)-cholesterol, and blood pressure, but also cytokines levels, such as interleukin (IL)-2, interferon (IFN)-γ, IL-17A/F, IL-6, monocyte chemoattractant protein (MCP)-1, and transforming growth factor (TGF)-β1. The indicators of kidney failure including urinary protein, neutrophil gelatinase-associated lipocalin (NGAL), renal type I and IV collagen deposits and leptin content, and serum creatinine were also increased by HFF. Folate-deficient diets further elevated serum TC, LDL-cholesterol, IL-6, tumor necrosis factor (TNF)-α, MCP-1, TGF-β1, and leptin, but decreased IL-10 level, and thus exacerbated renal fibrosis. To investigate the possible mechanisms of folate deficiency on renal injury, phosphorylation of pro-fibrosis signaling molecules, including signal transducer and activator of transcription (STAT)3 and small mothers against decapentaplegic (Smad)2/3, were assayed. Both HFF and folate deficiency significantly increased the phosphorylation of STAT3 and Smad2/3, suggesting synergistic effects of HFF-f on chronic renal inflammation and fibrosis. In conclusion, the results demonstrated that folate deficiency might aggravate inflammatory status and enhance renal fibrosis.
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Affiliation(s)
| | - Bi-Fong Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei 10617, Taiwan;
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156
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Afrin S, Kirschen GW, Borahay MA. Obesity Contributes to Transformation of Myometrial Stem-Cell Niche to Leiomyoma via Inducing Oxidative Stress, DNA Damage, Proliferation, and Extracellular Matrix Deposition. Genes (Basel) 2023; 14:1625. [PMID: 37628676 PMCID: PMC10454202 DOI: 10.3390/genes14081625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Leiomyomas (fibroids) are monoclonal tumors in which myometrial stem cells (MSCs) turn tumorigenic after mutation, abnormal methylation, or aberrant signaling. Several factors contribute to metabolic dysfunction in obesity, including abnormal cellular proliferation, oxidative stress, and DNA damage. The present study aims to determine how adipocytes and adipocyte-secreted factors affect changes in MSCs in a manner that promotes the growth of uterine leiomyomas. Myometrial stem cells were isolated from the uteri of patients by fluorescence-activated cell sorting (FACS) using CD44/Stro1 antibodies. Enzyme-linked immunosorbent assay (ELISA), Western blot, and immunocytochemistry assays were performed on human adipocytes (SW872) co-cultured with MSCs and treated with leptin or adiponectin to examine the effects of proliferation, extracellular matrix (ECM) deposition, oxidative damage, and DNA damage. Co-culture with SW872 increased MSC proliferation compared to MSC culture alone, according to 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) results. The expressions of PCNA and COL1A increased significantly with SW872 co-culture. In addition, the expression of these markers was increased after leptin treatment and decreased after adiponectin treatment in MSCs. The Wnt/β-catenin and TGF-β/SMAD signaling pathways promote proliferation and ECM deposition in uterine leiomyomas. The expression of Wnt4, β-catenin, TGFβ3, and pSMAD2/3 of MSCs was increased when co-cultured with adipocytes. We found that the co-culture of MSCs with adipocytes resulted in increased NOX4 expression, reactive oxygen species production, and γ-H2AX expression. Leptin acts by binding to its receptor (LEP-R), leading to signal transduction, resulting in the transcription of genes involved in cellular proliferation, angiogenesis, and glycolysis. In MSCs, co-culture with adipocytes increased the expression of LEP-R, pSTAT3/STAT3, and pERK1/2/ERK/12. Based on the above results, we suggest that obesity may mediate MSC initiation of tumorigenesis, resulting in leiomyomas.
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Affiliation(s)
| | | | - Mostafa A. Borahay
- Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, Baltimore, MD 21287, USA; (S.A.); (G.W.K.)
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Glassman I, Le N, Asif A, Goulding A, Alcantara CA, Vu A, Chorbajian A, Mirhosseini M, Singh M, Venketaraman V. The Role of Obesity in Breast Cancer Pathogenesis. Cells 2023; 12:2061. [PMID: 37626871 PMCID: PMC10453206 DOI: 10.3390/cells12162061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Research has shown that obesity increases the risk for type 2 diabetes mellitus (Type 2 DM) by promoting insulin resistance, increases serum estrogen levels by the upregulation of aromatase, and promotes the release of reactive oxygen species (ROS) by macrophages. Increased circulating glucose has been shown to activate mammalian target of rapamycin (mTOR), a significant signaling pathway in breast cancer pathogenesis. Estrogen plays an instrumental role in estrogen-receptor-positive breast cancers. The role of ROS in breast cancer warrants continued investigation, in relation to both pathogenesis and treatment of breast cancer. We aim to review the role of obesity in breast cancer pathogenesis and novel therapies mediating obesity-associated breast cancer development. We explore the association between body mass index (BMI) and breast cancer incidence and the mechanisms by which oxidative stress modulates breast cancer pathogenesis. We discuss the role of glutathione, a ubiquitous antioxidant, in breast cancer therapy. Lastly, we review breast cancer therapies targeting mTOR signaling, leptin signaling, blood sugar reduction, and novel immunotherapy targets.
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Affiliation(s)
- Ira Glassman
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Nghia Le
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Aamna Asif
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Anabel Goulding
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Cheldon Ann Alcantara
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Annie Vu
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Abraham Chorbajian
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Mercedeh Mirhosseini
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
| | - Manpreet Singh
- Corona Regional Medical Center, Department of Emergency Medicine, Corona, CA 92882, USA
| | - Vishwanath Venketaraman
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (N.L.); (A.A.); (C.A.A.); (M.M.)
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158
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Alsherif DA, Hussein MA, Abuelkasem SS. Salvia officinalis Improves Glycemia and Suppresses Pro-inflammatory Features in Obese Rats with Metabolic Syndrome. Curr Pharm Biotechnol 2023; 24:CPB-EPUB-133556. [PMID: 37581324 DOI: 10.2174/1389201024666230811104740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 06/12/2023] [Accepted: 06/26/2023] [Indexed: 08/16/2023]
Abstract
OBJECTIVES Obesity is regarded as the main cause of metabolic diseases and a core factor for all-cause mortality in the general population, notably from cardiovascular disease. The majority of people with type 2 diabetes have obesity and insulin resistance. Some evidence indicates that an individual with obesity is approximately 10 times more likely to develop type 2 diabetes than someone with moderate body weight. One of the most significant therapeutic herbs, Salvia officinalis (Lamiaceae) (SAGE), possesses potent medicinal importance. The aim of this article was to evaluate the anti-diabetic and antiobesity activity of SAGEAE against HFD-induced obesity in rats. METHODS : Thirty adult albino rats were randomly divided into five equal groups: control, High-fat Diet (HFD) administrated rats, HFD + Salvia officinalis Aqueous Extract (SAGEAE) (150 mg/kg.bw.), HFD + SAGEAE (300 mg/kg.bw.) and HFD + metformin (500 mg/kg.bw.). Body weight, plasma biochemical parameters, oxidative stress, inflammatory indicators, hepatic Phosphoenolpyruvate Carboxykinase 1 (PCK1), Glucokinase (GK), brain Leptin Receptor (LepRb), Glucose Transporter-4 (GLUT4), Sirtuin 1 (SIRT1) and mRNA33-5P gene signalling mRNA levels were all assessed after 8 weeks. A histological examination of the liver was also performed to check for lipid accumulation RESULTS The administration of HFD resulted in increased body weight, glucose, insulin, leptin, Total Cholesterol (TC), Triglycerides (TG), Thiobarbaturic Acid Reactive Substances (TBARS), Monocyte Chemoattractant Protein-1 (MCP1), Interleukine-6 (IL-6) and tumor necrosis factor-α (TNF- α) as well as hepatic PCK1, brain LepRb and adipose tissue mRNA33-5P gene expression. However, our findings revealed a significant reduction in adiponectin, High-density Lipoproteincholesterol (HDL-C), reduced glutathione (GSH) and Superoxide Dismutase (SOD) levels as well as the expression of hepatic GK and adipose tissue SIRT1 and GLUT4 genes. Also, administration of SAGEAE significantly normalized body weight, glucose, insulin, leptin, adiponectin, TC, TG, HDL-C, TBARs, SOD, IL-6, MCP-1 and TNF-α in plasma and liver tissue of HFD-treated rats. On the other hand, PCK1, GK, LepRb, SIRT1, GLUT4 and mRNA33-5P gene expression was enhanced in obese rats when administrated with SAGEAE. Histological and US studies support the biochemical, PCR and electrophoretic results. CONCLUSION The findings imply that SAGEAE could be used as a new pharmaceutical formula in the treatment of obesity.
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Affiliation(s)
- Diana A. Alsherif
- Department of Radiology and Medical Imaging, Faculty of Applied Health Science Technology, October 6th
University, October 6th City, Egypt
| | - Mohammed A. Hussein
- Department of Biotechnology, Faculty of Applied Health Science Technology, October 6th University, October 6th City, Egypt
| | - Suzan S. Abuelkasem
- Department of Biochemistry, Faculty of Applied Health Science Technology, October 6th University, October 6th City, Egypt
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159
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Ewald JT, Steinbrekera B, Bermick JR, Santillan DA, Colaizy TT, Santillan MK, Roghair RD. Inflammatory Biomarker Profiles in Very Preterm Infants within the Context of Preeclampsia, Chorioamnionitis, and Clinically Diagnosed Postnatal Infection. Pediatr Rep 2023; 15:483-493. [PMID: 37606448 PMCID: PMC10443264 DOI: 10.3390/pediatric15030044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
Preterm delivery can be precipitated by preeclampsia or infection, and preterm infants are at heightened risk of postnatal infection. Little is known about the ontogeny of inflammatory biomarkers in extremely preterm infants. We hypothesized that suspected prenatal infection (clinical chorioamnionitis or spontaneous preterm labor) and clinically diagnosed postnatal infection would be associated with unique biomarker signatures, and those patterns would be influenced by the degree of prematurity. Venous blood was collected daily for the first week and weekly for up to 14 additional weeks from 142 neonates born at 22-32 weeks gestation. A custom array was utilized to measure monocyte chemoattractant protein-1 (MCP-1) and interleukin-6 (IL-6). C-reactive protein (CRP) levels were obtained from the electronic medical record. Independent of gestational age, MCP-1 was significantly increased (p < 0.001) in association with maternal preeclampsia, but MCP-1 was decreased (p < 0.01), and CRP was increased (p < 0.01) in the presence of chorioamnionitis with funisitis. IL-6 and CRP were both increased in infants diagnosed with postnatal infection, with peak levels observed on days 2 and 3, respectively. In conclusion, suspected prenatal and postnatal infections and non-infectious complications of pregnancy are associated with unique biomarker profiles, independent of gestational age, including over a 2-fold increase in MCP-1 among newborns of mothers with preeclampsia. Further, in those clinically diagnosed with a postnatal infection in the absence of antenatal infection concerns, IL-6 increases before CRP, emphasizing a potential role for expanded biomarker screening if antibiotics are initially avoided in infants delivered for maternal indications.
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Affiliation(s)
- Jordan T. Ewald
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA;
| | - Baiba Steinbrekera
- Department of Pediatrics, University of South Dakota, Sioux Falls, SD 57069, USA;
| | - Jennifer R. Bermick
- Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (J.R.B.); (T.T.C.)
| | - Donna A. Santillan
- Department of Obstetrics and Gynecology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (D.A.S.); (M.K.S.)
| | - Tarah T. Colaizy
- Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (J.R.B.); (T.T.C.)
| | - Mark K. Santillan
- Department of Obstetrics and Gynecology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (D.A.S.); (M.K.S.)
| | - Robert D. Roghair
- Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (J.R.B.); (T.T.C.)
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Tie W, Ma T, Yi Z, Liu J, Li Y, Bai J, Li L, Zhang L. Obesity as a risk factor for multiple myeloma: insight on the role of adipokines. Pathol Oncol Res 2023; 29:1611338. [PMID: 37637774 PMCID: PMC10447903 DOI: 10.3389/pore.2023.1611338] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/01/2023] [Indexed: 08/29/2023]
Abstract
Multiple myeloma (MM) is a hematologic disorder characterized by the accumulation of malignant plasma cells in the bone marrow. Genetic and environmental factors are contributed to the etiology of MM. Notably, studies have shown that obesity increases the risk of MM and worsens outcomes for MM patients. Adipokines play an important role in mediating the close association between MM and metabolic derangements. In this review, we summarize the epidemiologic studies to show that the risk of MM is increased in obese. Accumulating clinical evidence suggests that adipokines could display a correlation with MM. In vitro and in vivo studies have shown that adipokines are linked to MM, including roles in the biological behavior of MM cells, cancer-associated bone loss, the progression of MM, and drug resistance. Current and potential therapeutic strategies targeted to adipokines are discussed, proposing that adipokines can guide early patient diagnosis and treatment.
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Affiliation(s)
- Wenting Tie
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
- Department of Endocrinology, Lanzhou University Second Hospital, Lanzhou, China
| | - Tao Ma
- Department of Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zhigang Yi
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
| | - Jia Liu
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
| | - Yanhong Li
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
| | - Jun Bai
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
| | - Lijuan Li
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
| | - Liansheng Zhang
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, China
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ÖZYURT R, ERKASAP N, ÖZKURT M, ERKASAP S, DİMAS K, ÇAKIR GÜNDOĞDU A, ULUKAYA E. Targeting of Notch, IL-1, and leptin has therapeutic potential in xenograft colorectal cancer. Turk J Biol 2023; 47:290-300. [PMID: 38152619 PMCID: PMC10751088 DOI: 10.55730/1300-0152.2663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 08/31/2023] [Accepted: 08/10/2023] [Indexed: 12/29/2023] Open
Abstract
Background/aim Colorectal cancer (CRC) is a fatal malignancy type and its occurence still needs to be explored mechanistically. Notch, IL-1, and leptin crosstalk is reported to play a role in the proliferation, migration, and expression of proangiogenic molecules. In this study, we aimed to investigate the effect of inhibition of Notch, IL-1, and leptin on CRC. Materials and methods To generate colorectal cancer tumor xenografts, 1 × 107 cells from exponentially growing cultures of HCT-15 cells were injected subcutaneously, at the axillary region of the left and right rear flanks of forty NOD.CB17-Prkdcscid/J (NOD/SCID) female mice. The mice were then monitored for the development of tumors and were randomly divided into five groups when tumor sizes reached a volume of approximately 150 mm3. Mice were used to determine the effectiveness of the gamma-secretase inhibitor (DAPT, Notch inhibitor), the interleukin-1 receptor antagonist (Anakinra) and the leptin receptor antagonist (Allo aca) against tumor growth. The mice were euthanized by CO2 inhalation immediately after the treatments finished, and all efforts were made to minimize suffering. Tumors were excissed for RT-PCR and histological analysis. Results There is an intact Notch, IL-1, and leptin signaling axis, and in vivo antagonism of Notch, IL-1, and leptin affects mRNA and protein expression of inflammatory and angiogenic molecules. Conclusion Present data suggest that targeting Notch, IL-1, and leptin may be possesses therapeutic potential in CRC.
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Affiliation(s)
- Rumeysa ÖZYURT
- Department of Experimental Therapeutics, MD Anderson Cancer Center, Houston, TX,
USA
- Department of Physiology, Eskişehir Osmangazi University Medical Faculty, Eskişehir,
Turkiye
| | - Nilüfer ERKASAP
- Department of Physiology, Eskişehir Osmangazi University Medical Faculty, Eskişehir,
Turkiye
| | - Mete ÖZKURT
- Department of Physiology, Eskişehir Osmangazi University Medical Faculty, Eskişehir,
Turkiye
| | - Serdar ERKASAP
- Department of General Surgery, Eskişehir Osmangazi University Medical Faculty, Eskişehir,
Turkiye
| | - Konstantinos DİMAS
- Department of Pharmacology, School of Health Science, Thessaly University, Larissa,
Greece
| | - Ayşe ÇAKIR GÜNDOĞDU
- Department of Histology and Embrology, Kütahya Health Sciences University Medical Faculty, Kütahya,
Turkiye
| | - Engin ULUKAYA
- Department of Clinical Biochemistry, Faculty of Medicine, İstinye University, İstanbul,
Turkiye
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162
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Breit SN, Manandhar R, Zhang HP, Lee-Ng M, Brown DA, Tsai VWW. GDF15 enhances body weight and adiposity reduction in obese mice by leveraging the leptin pathway. Cell Metab 2023; 35:1341-1355.e3. [PMID: 37433299 DOI: 10.1016/j.cmet.2023.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/17/2022] [Accepted: 06/16/2023] [Indexed: 07/13/2023]
Abstract
GDF15 regulates its anorexic effects through the hindbrain area postrema (AP) and nucleus of the solitary tract (NTS) neurons where its receptor, glial-derived neurotrophic factor receptor alpha-like (GFRAL), is expressed. The actions of GDF15 may interact with other appetite regulators elevated in obesity, such as leptin. Here, we report that in mice with high-fat-diet-induced obesity (HFD), the combined infusion of GDF15 and leptin causes significantly greater weight and adiposity loss than either treatment alone, indicating potentiation between GDF15 and leptin. Furthermore, obese, leptin-deficient ob/ob mice are less responsive to GDF15, as are normal mice treated with a competitive leptin antagonist. GDF15 and leptin induce more hindbrain neuronal activation in HFD mice than either treatment alone does. We report extensive connections between GFRAL- and LepR-expressing neurons and find LepR knockdown in the NTS to reduce the GDF15-mediated activation of AP neurons. Overall, these findings suggest that leptin signaling pathways in the hindbrain increase GDF15's metabolic actions.
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Affiliation(s)
- Samuel N Breit
- St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney and University of New South Wales, Sydney, NSW 2010, Australia.
| | - Rakesh Manandhar
- St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney and University of New South Wales, Sydney, NSW 2010, Australia
| | - Hong-Ping Zhang
- St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney and University of New South Wales, Sydney, NSW 2010, Australia
| | - Michelle Lee-Ng
- St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney and University of New South Wales, Sydney, NSW 2010, Australia
| | - David A Brown
- Westmead Institute for Medical Research and Department of Immunopathology, Institute for Clinical Pathology and Medical Research-New South Wales Health Pathology Westmead Hospital and University of Sydney, Sydney, NSW 2145, Australia; The Centre for Allergy and Medical Research, The Westmead Institute for Medical Research, University of Sydney, Sydney, NSW 2145, Australia
| | - Vicky Wang-Wei Tsai
- St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney and University of New South Wales, Sydney, NSW 2010, Australia.
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Lu W, Feng W, Lai J, Yuan D, Xiao W, Li Y. Role of adipokines in sarcopenia. Chin Med J (Engl) 2023; 136:1794-1804. [PMID: 37442757 PMCID: PMC10406092 DOI: 10.1097/cm9.0000000000002255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Indexed: 07/15/2023] Open
Abstract
ABSTRACT Sarcopenia is an age-related disease that mainly involves decreases in muscle mass, muscle strength and muscle function. At the same time, the body fat content increases with aging, especially the visceral fat content. Adipose tissue is an endocrine organ that secretes biologically active factors called adipokines, which act on local and distant tissues. Studies have revealed that some adipokines exert regulatory effects on muscle, such as higher serum leptin levels causing a decrease in muscle function and adiponectin inhibits the transcriptional activity of Forkhead box O3 (FoxO3) by activating peroxisome proliferators-activated receptor-γ coactivator -1α (PGC-1α) and sensitizing cells to insulin, thereby repressing atrophy-related genes (atrogin-1 and muscle RING finger 1 [MuRF1]) to prevent the loss of muscle mass. Here, we describe the effects on muscle of adipokines produced by adipose tissue, such as leptin, adiponectin, resistin, mucin and lipocalin-2, and discuss the importance of these adipokines for understanding the development of sarcopenia.
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Affiliation(s)
- Wenhao Lu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Wenjie Feng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jieyu Lai
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410083, China
| | - Dongliang Yuan
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410083, China
| | - Wenfeng Xiao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yusheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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Mezhibovsky E, Tveter KM, Villa-Rodriguez JA, Bacalia K, Kshatriya D, Desai N, Cabales A, Wu Y, Sui K, Duran RM, Bello NT, Roopchand DE. Grape Polyphenols May Prevent High-Fat Diet-Induced Dampening of the Hypothalamic-Pituitary-Adrenal Axis in Male Mice. J Endocr Soc 2023; 7:bvad095. [PMID: 37538101 PMCID: PMC10396072 DOI: 10.1210/jendso/bvad095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Indexed: 08/05/2023] Open
Abstract
Context Chronic high-fat diet (HFD) consumption causes obesity associated with retention of bile acids (BAs) that suppress important regulatory axes, such as the hypothalamic-pituitary-adrenal axis (HPAA). HFD impairs nutrient sensing and energy balance due to a dampening of the HPAA and reduced production and peripheral metabolism of corticosterone (CORT). Objective We assessed whether proanthocyanidin-rich grape polyphenol (GP) extract can prevent HFD-induced energy imbalance and HPAA dysregulation. Methods Male C57BL6/J mice were fed HFD or HFD supplemented with 0.5% w/w GPs (HFD-GP) for 17 weeks. Results GP supplementation reduced body weight gain and liver fat while increasing circadian rhythms of energy expenditure and HPAA-regulating hormones, CORT, leptin, and PYY. GP-induced improvements were accompanied by reduced mRNA levels of Il6, Il1b, and Tnfa in ileal or hepatic tissues and lower cecal abundance of Firmicutes, including known BA metabolizers. GP-supplemented mice had lower concentrations of circulating BAs, including hydrophobic and HPAA-inhibiting BAs, but higher cecal levels of taurine-conjugated BAs antagonistic to farnesoid X receptor (FXR). Compared with HFD-fed mice, GP-supplemented mice had increased mRNA levels of hepatic Cyp7a1 and Cyp27a1, suggesting reduced FXR activation and more BA synthesis. GP-supplemented mice also had reduced hepatic Abcc3 and ileal Ibabp and Ostβ, indicative of less BA transfer into enterocytes and circulation. Relative to HFD-fed mice, CORT and BA metabolizing enzymes (Akr1d1 and Srd5a1) were increased, and Hsd11b1 was decreased in GP supplemented mice. Conclusion GPs may attenuate HFD-induced weight gain by improving hormonal control of the HPAA and inducing a BA profile with less cytotoxicity and HPAA inhibition, but greater FXR antagonism.
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Affiliation(s)
- Esther Mezhibovsky
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Nutritional Sciences Graduate Program, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Kevin M Tveter
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Jose A Villa-Rodriguez
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Karen Bacalia
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Nutritional Sciences Graduate Program, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Dushyant Kshatriya
- Department of Nutritional Sciences Graduate Program, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Animal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Nikhil Desai
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Alrick Cabales
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Yue Wu
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Ke Sui
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Rocio M Duran
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Nicholas T Bello
- Department of Animal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Diana E Roopchand
- Department of Food Science and NJ Institute for Food Nutrition and Health (Rutgers Center for Lipid Research; Center for Nutrition Microbiome and Health), Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Nutritional Sciences Graduate Program, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
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Sycheva I, Latynina E, Mamedov A, Tsibizova O, Kozak Y, Svistounov D, Bystrenina I, Orishev A. Effect of TG5 and LEP polymorphisms on the productivity, chemical composition, and fatty acid profile of meat from Simmental bulls. Vet World 2023; 16:1647-1654. [PMID: 37766707 PMCID: PMC10521186 DOI: 10.14202/vetworld.2023.1647-1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/13/2023] [Indexed: 09/29/2023] Open
Abstract
Background and Aim Enhancing the nutritional and biological value of meat obtained from young surplus replacement animals of dual-purpose breeds is a critical objective in the livestock industry. This study aimed to investigate the impact of thyroglobulin (TG5, c. -422C > T) and leptin (LEP, c. 239C > T) polymorphisms on the productivity, chemical composition, and fatty acid (FA) profile of meat from Simmental bulls. Materials and Methods A total of 26 Simmental bulls were genotyped for TG5 (c. -422C > T) and LEP (c. 239C > T) polymorphisms and reared under the same fattening conditions. Controlled slaughter was conducted at 18 months of age. Subsequently, the experimental animals were evaluated to determine their slaughter traits and the chemical and FA composition of ground beef and the longissimus dorsi muscle. Results The results showed that the TG5 (c. -422C > T) polymorphism significantly (p < 0.05) affected the differentiation of bulls in terms of the synthesis of stearic acid, linolenic acid, and total polyunsaturated FAs, as well as the fat and dry matter content in the longissimus dorsi muscle. Conversely, the presence of the T allele in the LEP (c. 239C > T) polymorphism was associated with increased dry matter and fat in ground beef, carcass weight, and internal fat weight. Conclusion The analysis of slaughter traits and the chemical and FA composition of meat from the Simmental bulls genotyped for the TG5 and LEP genes revealed a genetic basis for the quantitative and qualitative characteristics of meat productivity. Thus, the genetic variability of bulls regarding the LEP and TG5 genes can be used to improve the quantitative and qualitative indicators of meat productivity in Simmental cattle through marker-assisted selection.
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Affiliation(s)
- Irina Sycheva
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Evgeniya Latynina
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Azer Mamedov
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Oksana Tsibizova
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Yulia Kozak
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Dmitriy Svistounov
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Irina Bystrenina
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
| | - Aleksandr Orishev
- Department of Animal Science and Biology, Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russian Federation
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Sánchez-Lozada LG, Madero M, Mazzali M, Feig DI, Nakagawa T, Lanaspa MA, Kanbay M, Kuwabara M, Rodriguez-Iturbe B, Johnson RJ. Sugar, salt, immunity and the cause of primary hypertension. Clin Kidney J 2023; 16:1239-1248. [PMID: 37529651 PMCID: PMC10387395 DOI: 10.1093/ckj/sfad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Indexed: 08/03/2023] Open
Abstract
Despite its discovery more than 150 years ago, the cause of primary hypertension remains unknown. Most studies suggest that hypertension involves genetic, congenital or acquired risk factors that result in a relative inability of the kidney to excrete salt (sodium chloride) in the kidneys. Here we review recent studies that suggest there may be two phases, with an initial phase driven by renal vasoconstriction that causes low-grade ischemia to the kidney, followed by the infiltration of immune cells that leads to a local autoimmune reaction that maintains the renal vasoconstriction. Evidence suggests that multiple mechanisms could trigger the initial renal vasoconstriction, but one way may involve fructose that is provided in the diet (such as from table sugar or high fructose corn syrup) or produced endogenously. The fructose metabolism increases intracellular uric acid, which recruits NADPH oxidase to the mitochondria while inhibiting AMP-activated protein kinase. A drop in intracellular ATP level occurs, triggering a survival response. Leptin levels rise, triggering activation of the sympathetic central nervous system, while vasopressin levels rise, causing vasoconstriction in its own right and stimulating aldosterone production via the vasopressin 1b receptor. Low-grade renal injury and autoimmune-mediated inflammation occur. High-salt diets can amplify this process by raising osmolality and triggering more fructose production. Thus, primary hypertension may result from the overactivation of a survival response triggered by fructose metabolism. Restricting salt and sugar and hydrating with ample water may be helpful in the prevention of primary hypertension.
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Affiliation(s)
- Laura G Sánchez-Lozada
- Department of Cardio-Renal Physiopathology, Instituto Nacional de Cardiología “Ignacio Chavez”, Mexico City, Mexico
| | - Magdalena Madero
- Division of Nephrology, Department of Medicine, Instituto Nacional de Cardiología “Ignacio Chavez”, Mexico City, Mexico
| | - Marilda Mazzali
- Division of Nephrology, University of Campinas, São Paulo, Brazil
| | - Daniel I Feig
- Division of Pediatric Nephrology, University of Alabama, Birmingham, AL, USA
| | | | - Miguel A Lanaspa
- Department of Medicine, University of Colorado Anschutz Medical Center, Aurora, CO, USA
| | - Mehmet Kanbay
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | | | - Bernardo Rodriguez-Iturbe
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City
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167
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Chen H, Liu L, Li M, Zhu D, Tian G. Epicardial Adipose Tissue-Derived Leptin Promotes Myocardial Injury in Metabolic Syndrome Rats Through PKC/NADPH Oxidase/ROS Pathway. J Am Heart Assoc 2023; 12:e029415. [PMID: 37489731 PMCID: PMC10492984 DOI: 10.1161/jaha.123.029415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 06/19/2023] [Indexed: 07/26/2023]
Abstract
Background The epicardial adipose tissue (EAT) of metabolic syndrome (MetS) is abnormally accumulated with dysfunctional secretion of adipokines, closely relating to cardiac dysfunction. The current study was designed to identify the effects of EAT-derived leptin on the myocardium of MetS rats and explore the potential molecular mechanisms. Methods and Results A MetS rat model was established in 8-week-old Wistar rats by a 12-week high-fat diet. MetS rats exhibited increased leptin secretion from EAT, cardiac hypertrophy, and diastolic dysfunction with preserved systolic function. The myocardium of MetS rats had abnormal structure, increased oxidative stress injury, and higher inflammatory factor levels, especially the subepicardial myocardium, which was correlated with the EAT-derived leptin level but not the serum leptin. The EAT was separated from each group of rats to prepare EAT-conditioned medium. H9C2 rat cardiomyoblasts were treated with EAT-conditioned medium or leptin, plus various inhibitors. EAT-derived leptin from MetS rats promoted mitochondrial oxidative stress and dysfunction, induced mitochondrial pathway apoptosis, and inhibited cell viability in H9C2 cardiomyoblasts via the protein kinase C/reduced nicotinamide adenine dinucleotide phosphate oxidase/reactive oxygen species (PKC/NADPH oxidase/ROS) pathway. EAT-derived leptin from MetS rats stimulated inflammation in H9C2 cardiomyocytes by promoting activator protein 1 nuclear translocation via the PKC/NADPH oxidase/ROS pathway. Leptin promoted the interaction between p-p47phox and gp91phox in H9C2 cardiomyocytes via protein kinase C, activating nicotinamide adenine dinucleotide phosphate oxidase, increasing reactive oxygen species generation, and inhibiting cell viability. Conclusions EAT-derived leptin induces MetS-related myocardial injury through the following 2 cooperative ways via PKC/NADPH oxidase/ROS pathway: (1) inducing mitochondrial pathway apoptosis by promoting mitochondrial oxidative stress and dysfunction; and (2) stimulating inflammation by promoting activator protein 1 nuclear translocation.
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Affiliation(s)
- Hui Chen
- Heart Center of Henan Provincial People’s Hospital, Central China Fuwai HospitalCentral China Fuwai Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Lei Liu
- Department of CardiologyThe First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’anShaanxiChina
| | - Min Li
- Department of CardiologyThe First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’anShaanxiChina
| | - Danjun Zhu
- Department of CardiologyThe First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’anShaanxiChina
| | - Gang Tian
- Department of CardiologyThe First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’anShaanxiChina
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168
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Cibičková Ľ, Grega M, Dohnal R, Schovánek J. Effect of Laparoscopic Sleeve Gastrectomy on Serum Adipokine Levels. Physiol Res 2023; 72:S165-S172. [PMID: 37565420 PMCID: PMC10660580 DOI: 10.33549/physiolres.935053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/13/2023] [Indexed: 12/01/2023] Open
Abstract
Bariatric procedures are considered to be the most effective treatment options for obesity. One of them is laparoscopic sleeve gastrectomy (LSG), which is nowadays very popular and widely used. LSG leads to weight loss and metabolic improvement and also changes adipokine levels, although it is just a restrictive operation. We describe changes in pro-inflammatory (leptin, resistin, visfatin and chemerin) and anti-inflammatory adipokines (adiponectin, omentin), with adiponectin and leptin being most studied. Their levels are markedly changed after LSG and this may partially explain the weight loss seen after LSG. Adipokines are closely connected to insulin resistance and chronic inflammation both being positively influenced after LSG. Leptin regulates amount of body fat, appetite, thermogenesis and metabolic rate and its levels are positively correlated with both weight and BMI changes after operation. Resistin influences insulin sensitivity, modulates body cholesterol trafficking and its changes after operation correlate with BMI, waist circumference, fat mass, LDL cholesterol and C-reactive protein. Chemerin, an important component of immune system, decreases after bariatric surgery and its levels correlate with BMI, triglyceride levels, and blood glucose. On the other hand, pro-inflammatory adipokine adiponectin, which influences fatty acid oxidation, browning of fat tissue and energy metabolism, is declining after LSG. This decline explains improvement of glucose status after bariatric surgery in patients with diabetes and is correlated with BMI loss, waist circumference and LDL cholesterol level. Effect of LSG goes beyond calory restriction and the changes of adipokines have a great impact on health status of the bariatric patients.
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Affiliation(s)
- Ľ Cibičková
- Department of Internal Medicine III - Nephrology, Rheumatology and Endocrinology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic.
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169
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Mirrakhimov E, Bektasheva E, Isakova J, Lunegova O, Kerimkulova A, Abilova S, Neronova K, Alibaeva N, Mamatuulu YU, Kudaibergenova I, Banach M, Mirrakhimov A. Association of leptin receptor gene Gln223Arg polymorphism with insulin resistance and hyperglycemia in patients with metabolic syndrome. Arch Med Sci 2023; 20:54-60. [PMID: 38414477 PMCID: PMC10895948 DOI: 10.5114/aoms/170121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 07/27/2023] [Indexed: 02/29/2024] Open
Abstract
Introduction Worldwide, there has been an increase in the incidence of metabolic syndrome. The search for genetic markers of this syndrome is ongoing. The leptin receptor has recently received attention. One of the polymorphisms (Gln223Arg) is possibly associated with the development of obesity and insulin resistance. However, the results of studies on this polymorphism remain equivocal. Gln223Arg polymorphism has not been studied previously in the Kyrgyz population. Thus, we aimed to investigate the possible association of the Gln223Arg polymorphism of the leptin receptor gene with metabolic syndrome components in the Kyrgyz population. Material and methods 237 Kyrgyz subjects, aged 35-70 years, were studied. For the analysis anthropometric data, glucose, insulin, lipid spectrum, leptin were obtained. The genotype of the Gln223Arg leptin polymorphism was evaluated using TaqMan real-time PCR. Results The distribution of genotypes was as follows: Gln223Gln 46.4%, Gln223Arg 40.1%, Arg223Arg 13.5%. In the study no association was found with abdominal obesity, arterial hypertension, hypertriglyceridemia or low-density cholesterol levels. Relationships of Gln223Arg and Arg223Arg genotypes with insulin resistance (p < 0.03) were found. Gln223Arg polymorphism was associated with a higher level of glycemia (5.54 vs. 5.39 mmol/l, p < 0.05) and insulinemia (8.3 vs. 7.1 µIU/ml, p < 0.05). Correlation analysis showed that carriers of the Arg223 allele demonstrated a higher risk of insulin resistance (odds ratio (OR) = 1.83, 95% CI: 1.03-3.24; p < 0.03) than carriers of the Gln223 allele. Conclusions Gln223Arg polymorphism of the leptin receptor gene may be a marker of predisposition to insulin resistance in the Kyrgyz population. Further studies are necessary to confirm these results in populations from other regions.
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Affiliation(s)
- Erkin Mirrakhimov
- Kyrgyz State Medical Academy, Bishkek, Kyrgyzstan
- National Centre of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan
| | | | - Jainagul Isakova
- Institute of Molecular Biology and Medicine, Bishkek, Kyrgyzstan
| | | | | | - Saamay Abilova
- Kyrgyz State Medical Academy, Bishkek, Kyrgyzstan
- National Centre of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan
| | | | | | | | | | - Maciej Banach
- Department of Preventive Cardiology and Lipidology, Medical University of Lodz, Lodz, Poland
- Department of Cardiology and Congenital Diseases of Adults, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
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170
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Wang J, Liu S, Zhao Y, Naqvi SSZH, Duan R. The association between serum adipokines levels with senile osteoporosis: a systematic review and meta-analysis. Front Endocrinol (Lausanne) 2023; 14:1193181. [PMID: 37576959 PMCID: PMC10415163 DOI: 10.3389/fendo.2023.1193181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Objective The clinical correlation between adipokines levels in the blood and the incidence of senile osteoporosis (SOP) has not been clearly studied. We conducted this meta-analysis to elucidate the relationship between three common adipokines levels (leptin, adiponectin, and chemerin) and the incidence of SOP. Methods We searched databases such as CNKI, CBM, VIP, Wanfang, PubMed, Web of Science, Embase, and the Cochrane Library to collect articles published since the establishment of the database until July 30, 2022. Results In total, 11 studies met the selection criteria. Our meta-analysis showed that serum leptin levels were significantly lower (mean difference [MD], -2.53, 95% CI: -3.96 to -1.10, I2 = 96%), chemerin levels were significantly higher (MD, 30.06, 95% CI: 16.71 to 43.40, I2 = 94%), and adiponectin levels were not significantly different (MD, -0.55, 95% CI: -2.26 to 1.17, P = 0.53, I2 = 98%) in SOP patients compared with healthy older individuals with normal bone mineral density (BMD). In addition, correlation analysis showed that leptin levels were positively correlated with lumbar bone mineral density (LBMD) (r = 0.36) and femoral bone mineral density (FBMD) (r = 0.38), chemerin levels were negatively correlated with LBMD (r = -0.55) and FBMD (r = -0.48), and there were significant positive correlations between leptin and adiponectin levels and body mass index (BMI) (r = 0.91 and 0.97). Conclusions The likelihood of having SOP was higher in older individuals with low levels of leptin and higher levels of chemerin. In addition, BMI was somewhat lower with low levels of leptin and adiponectin. Systematic review registration https://www.crd.york.ac.uk/prospero/, identifier CRD42022356469.
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Affiliation(s)
- Jiangna Wang
- Department of Biochemistry and Molecular Biology, Basic Medical College, Shanxi Medical University, Taiyuan, China
| | - Shiwei Liu
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Yuxiang Zhao
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Syed Shah Zaman Haider Naqvi
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Ruixue Duan
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
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171
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Wittekind DA, Kratzsch J, Mergl R, Baber R, Wirkner K, Schroeter ML, Witte AV, Villringer A, Kluge M. Leptin, but not ghrelin, is associated with food addiction scores in a population-based subject sample. Front Psychiatry 2023; 14:1200021. [PMID: 37559914 PMCID: PMC10407557 DOI: 10.3389/fpsyt.2023.1200021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/03/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Ghrelin and leptin are both peptide hormones and act as opposing players in the regulation of hunger, satiety and energy expenditure. Leptin reduces appetite and feelings of hunger and is secreted mainly by adipocytes, while ghrelin increases appetite and food intake and reduces metabolic rate. Both hormones have been implicated in addictive disorders. Ghrelin was shown to have pro-addictive effects while leptin's role in addiction yields more conflicting results. Their involvement in the regulation of both food intake and addictive behaviors make them interesting candidates when investigating the regulation of food addiction. However, only few human studies have been performed and large-scale studies are lacking to date. We aimed to investigate the association between total ghrelin and leptin serum levels with scores in the Yale Food Addiction Scale (YFAS). METHODS Subjects were recruited in the LIFE Adult cohort. 909 subjects were included in the analysis and we performed univariate multiple linear regression models, adjusted for age, sex (in total group analyses only), alcohol consumption, smoking status, BMI scores, cortisol concentrations, Center for Epidemiological Studies Depression Scale (CES-D) and the 7-item Generalized Anxiety Disorder Scale (GAD-7) sum scores. The dependent variable was the YFAS score. RESULTS In men, leptin serum levels showed a significant positive association (standardized β = 0.146; p = 0.012) with the YFAS score. This finding was confirmed in an extreme-group comparison: men in the highest quartile of leptin levels had significantly higher YFAS sum scores than men in the lowest quartile (1.55 vs. 1.18; p = 0.00014). There was no association with YFAS sum score in the total group (standardized β = -0.002; p = 0.974) or in women (standardized β = -0.034; p = 0.674). Total serum ghrelin showed no association with YFAS sum score neither in the total group (standardized β = -0.043; p = 0.196) nor in men (n = 530; standardized β = -0.063; p = 0.135) or women (n = 379; standardized β = -0.035; p = 0.494). CONCLUSION Our findings are in line with previous literature and suggest that total ghrelin serum levels are not associated with food addiction scores. Leptin had been previously shown to be associated with food addiction and we confirmed this finding for men in a large, population-based approach.
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Affiliation(s)
- Dirk Alexander Wittekind
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University of Leipzig, Leipzig, Germany
| | - Jürgen Kratzsch
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University of Leipzig, Leipzig, Germany
| | - Roland Mergl
- Institute of Psychology, University of the Bundeswehr Munich, Neubiberg, Germany
| | - Ronny Baber
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University of Leipzig, Leipzig, Germany
- Leipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany
| | - Kerstin Wirkner
- Leipzig Research Center for Civilization Diseases (LIFE), University of Leipzig, Leipzig, Germany
| | - Matthias L. Schroeter
- Department of Neurology, Clinic of Cognitive Neurology, Max Planck Institute for Cognitive and Brain Sciences, University of Leipzig, Leipzig, Germany
| | - A. Veronica Witte
- Department of Neurology, Clinic of Cognitive Neurology, Max Planck Institute for Cognitive and Brain Sciences, University of Leipzig, Leipzig, Germany
| | - Arno Villringer
- Department of Neurology, Clinic of Cognitive Neurology, Max Planck Institute for Cognitive and Brain Sciences, University of Leipzig, Leipzig, Germany
| | - Michael Kluge
- Department of Psychiatry and Psychotherapy, University of Leipzig, Leipzig, Germany
- Department of Psychiatry, Rudolf-Virchow-Klinikum Glauchau, Glauchau, Germany
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172
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Martinez ME, Wu Z, Hernandez A. Paternal developmental thyrotoxicosis disrupts neonatal leptin leading to increased adiposity and altered physiology of the melanocortin system. Front Endocrinol (Lausanne) 2023; 14:1210414. [PMID: 37560296 PMCID: PMC10407661 DOI: 10.3389/fendo.2023.1210414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 07/10/2023] [Indexed: 08/11/2023] Open
Abstract
Background The genetic code does not fully explain individual variability and inheritance of susceptibility to endocrine conditions, suggesting the contribution of epigenetic factors acting across generations. Methods We used a mouse model of developmental thyrotoxicosis (Dio3-/- mouse) to analyze endocrine outcomes in the adult offspring of Dio3-/- males using standard methods for body composition, and baseline and fasting hormonal and gene expression determinations in serum and tissues of relevance to the control of energy balance. Results Compared to controls, adult females with an exposed father (EF females) exhibited higher body weight and fat mass, but not lean mass, a phenotype that was much milder in EF males. After fasting, both EF females and males exhibited a more pronounced decrease in body weight than controls. EF females also showed markedly elevated serum leptin, increased white adipose tissue mRNA expression of leptin and mesoderm-specific transcript but decreased expression of type 2 deiodinase. EF females exhibited decreased serum ghrelin, which showed more pronounced post-fasting changes in EF females than in control females. EF female hypothalami also revealed significant decreases in the expression of pro-opiomelanocortin, agouti-related peptide, neuropeptide Y and melanocortin receptor 4. These markers also showed larger changes in response to fasting in EF females than in control females. Adult EF females showed no abnormalities in serum thyroid hormones, but pituitary expression of thyrotropin-releasing hormone receptor 1 and thyroid gland expression of thyroid-stimulating hormone receptor, thyroid peroxidase and iodotyrosine deiodinase were increased at baseline and showed differential regulation after fasting, with no increase in Trhr1 expression and more pronounced reductions in Tshr, Tpo and Iyd. In EF males, these abnormalities were generally milder. In addition, postnatal day 14 (P14) serum leptin was markedly reduced in EF pups. Discussion A paternal excess of thyroid hormone during development modifies the endocrine programming and energy balance in the offspring in a sexually dimorphic manner, with baseline and dynamic range alterations in the leptin-melanocortin system and thyroid gland, and consequences for adiposity phenotypes. We conclude that thyroid hormone overexposure may have important implications for the non-genetic, inherited etiology of endocrine and metabolic pathologies.
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Affiliation(s)
- Maria Elena Martinez
- Center for Molecular Medicine, MaineHealth Institute for Research, Scarborough, ME, United States
| | - Zhaofei Wu
- Center for Molecular Medicine, MaineHealth Institute for Research, Scarborough, ME, United States
| | - Arturo Hernandez
- Center for Molecular Medicine, MaineHealth Institute for Research, Scarborough, ME, United States
- Graduate School for Biomedical Sciences and Engineering, University of Maine, Orono, ME, United States
- Department of Medicine, Tufts University School of Medicine, Boston, MA, United States
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Shrestha R, Gurung P, Lim J, Thapa Magar TB, Kim CW, Lee HY, Kim YW. Anti-Obesity Effect of Chlorin e6-Mediated Photodynamic Therapy on Mice with High-Fat-Diet-Induced Obesity. Pharmaceuticals (Basel) 2023; 16:1053. [PMID: 37513964 PMCID: PMC10384435 DOI: 10.3390/ph16071053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
This study aimed to evaluate the efficacy of Chlorin e6 (Ce6)-based photodynamic therapy (PDT) for anti-obesity activities in high-fat-diet (HFD)-induced obesity mouse models. We induced obesity in C57BL/6 mice by HFD and administered Ce6 (2.5 or 5 mg/kg) orally with 3 h of incubation. The mice were then exposed to light of high fluence rate (4.96 mW/cm2) or low fluence rate (2.56 mW/cm2) in the designed LED mouse chamber 2-3 days a week for up to 8 weeks. The study also analyzed the pharmacokinetics and optimization of the drug by evaluating the absorption, distribution, metabolism, and excretion (ADME) of Ce6 in the rat models. Both low doses (2.5 mg/kg) and high doses (5 mg/kg) of Ce6 with high irradiation dose showed better anti-obesity effects than other groups with decreased body weight. The lipid accumulation in the liver and adipocyte size in epididymal adipose tissues were found to be decreased by Ce6-PDT in comparison to vehicle-treated HFD groups. We also observed increased levels of the lipidomic biomarkers, such as leptin and LDL cholesterol, while observing decreasing levels of total cholesterol and adiponectin in the Ce6-PDT-treated mice. These findings may provide valuable insight into Ce6-PDT as an alternative and non-invasive therapeutic methodology for obesity and obesity-related diseases.
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Affiliation(s)
- Rajeev Shrestha
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
| | - Pallavi Gurung
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
| | - Junmo Lim
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
| | | | - Cheong-Wun Kim
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
| | - Hak Yong Lee
- INVIVO Co., Ltd., Nonsan 32992, Republic of Korea
| | - Yong-Wan Kim
- Dongsung Cancer Center, Dongsung Biopharmaceutical, Daegu 41061, Republic of Korea
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Abstract
Organismal energy balance is controlled by inter-tissue communication mediated by the nervous system and hormones, the disruption of which causes metabolic syndrome exemplified by diabetes and obesity. Fat-storing adipose tissue, especially those located in subcutaneous white adipose tissue, secretes leptin in a proportion of fat mass, inhibiting the accumulation of organismal fat by suppressing appetite and promoting energy expenditure. With a prevalence of obesity that exhibits hyperleptinemia, most of the investigation on leptin has been focused on how it works and how it does not, which is expected to be a clue for treating obesity. In contrast, how it is synthesized, transported, and excreted, all of which are relevant to the homeostasis of blood leptin concentration, are not much understood. Of note, acute leptin reduction after hyperleptinemia in the context of obesity exhibited a beneficial effect on obesity and insulin sensitivity, indicating that manipulation of circulating leptin level may provide a therapeutic strategy. Technological advances such as "omics" analysis combined with sophisticated gene-engineered mice studies in the past decade enabled a deeper understanding of leptin's action in more detail. Here, we summarize the updated understanding of the action as well as regulation of leptin and point out the emerging direction of research on leptin.
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Affiliation(s)
- Tadashi Nakagawa
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Sanyo-Onoda, Yamaguchi, Japan
- Division of Cell Proliferation, ART, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Toru Hosoi
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Sanyo-Onoda, Yamaguchi, Japan
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Fay LY, Kuo CH, Chang HK, Yeh MY, Chang CC, Ko CC, Tu TH, Kuo YH, Hsu WY, Hung CH, Chen CJ, Wu JC, Tsai MJ, Huang WC, Cheng H, Lee MJ. Comparative Study of the Cytokine Profiles of Serum and Tissues from Patients with the Ossification of the Posterior Longitudinal Ligament. Biomedicines 2023; 11:2021. [PMID: 37509659 PMCID: PMC10377187 DOI: 10.3390/biomedicines11072021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND The ossification of the posterior longitudinal ligament (OPLL) is one of the contributing factors leading to severe cervical spondylotic myelopathy (CSM). The mechanism causing ossification is still unclear. The current study was designed to analyze the specimens of patients with or without OPLL. METHODS The study collected 51 patients with cervical spondylosis. There were six serum samples in both the non-OPLL (NOPLL) and OPLL groups. For tissue analysis, there were seven samples in the NOPLL group and five samples in the OPLL group. The specimens of serum and tissue were analyzed by using Human Cytokine Antibody Arrays to differentiate biomarkers between the OPLL and NOPLL groups, as well as between serum and OPLL tissue. Immunohistochemical staining of the ligament tissue was undertaken for both groups. RESULTS For OPLL vs. NOPLL, the serum leptin levels are higher in the OPLL group, corroborating others' observations that it may serve as a disease marker. In the tissue, angiogenin (ANG), osteopontin (OPN), and osteopro-tegerin (OPG) are higher than they are in the OPLL group (p < 0.05). For serum vs. OPLL tissue, many chemotactic cytokines demonstrated elevated levels of MIP1 delta, MCP-1, and RANTES in the serum, while many cytokines promoting or regulating bone genesis were up-regulated in tissue (oncostatin M, FGF-9, LIF, osteopontin, osteoprotegerin, TGF-beta2), as well as the factor that inhibits osteoclastogenesis (IL-10), with very few cytokines responsible for osteoclastogenesis. Molecules promoting angiogenesis, including angiotensin, vEGF, and osteoprotegerin, are abundant in the OPLL tissue, which paves the way for robust bone growth.
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Affiliation(s)
- Li-Yu Fay
- Institute of Pharmacology, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Chao-Hung Kuo
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, and National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
| | - Hsuan-Kan Chang
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Mei-Yin Yeh
- Institute of Pharmacology, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Chih-Chang Chang
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Chin-Chu Ko
- Institute of Pharmacology, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Tsung-Hsi Tu
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Yi-Hsuan Kuo
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Wang-Yu Hsu
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Chien-Hui Hung
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Ching-Jung Chen
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Jau-Ching Wu
- Institute of Pharmacology, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - May-Jywan Tsai
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Wen-Cheng Huang
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Henrich Cheng
- Institute of Pharmacology, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Taipei 11217, Taiwan
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei 11217, Taiwan
| | - Meng-Jen Lee
- Department of Applied Chemistry, Chaoyang University of Technology, 168, Jifeng E. Rd., Taichung 413310, Taiwan
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Roca-Rodríguez MDM, Ramos-García P, López-Tinoco C, Aguilar-Diosdado M. Significance of Umbilical Cord Leptin Profile during Pregnancy in Gestational Diabetes Mellitus-A Systematic Review and Meta-Analysis. J Clin Med 2023; 12:4756. [PMID: 37510870 PMCID: PMC10381212 DOI: 10.3390/jcm12144756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND The literature provides limited evidence of cord blood leptin levels in gestational diabetes mellitus (GDM), with contradictory and inconsistent results with respect to their possible implications for maternal, perinatal, and future complications. METHODS MEDLINE/PubMed, Embase, Scopus, and Web of Science databases were searched in order to investigate the state of evidence on the association of leptin profile in cord blood during perinatal complications in GDM. We critically assessed the risk of bias using the Newcastle-Ottawa scale. Meta-analyses were performed, and heterogeneity and publication bias were analyzed. RESULTS sixteen primary-level studies were included, recruiting 573 GDM and 1118 control pregnant women. Cord blood leptin levels were significantly higher in GDM participants compared to controls (standardized mean difference [SMD] = 0.59, 95% confidence intervals (CI) = 0.37 to 0.80, p < 0.001). All subgroups also maintained significant differences stratified by continents (Asia: SMD = 0.91, 95% CI = 0.45 to 1.37, p < 0.001; Europe: SMD = 0.38, 95% CI = 0.20 to 0.56, p < 0.001), analysis technique (ELISA: SMD = 0.70, 95% CI = 0.44 to 0.97, p < 0.001; RIA: SMD = 0.30, 95% CI = 0.11 to 0.49, p = 0.002), and sample source (plasma: SMD = 0.71, 95% CI = 0.33 to 1.09, p < 0.001; serum: SMD = 0.55, 95% CI = 0.34 to 0.77, p < 0.001). CONCLUSION Cord blood leptin levels were significantly higher in GDM compared to controls. Further research is needed to clarify its role as a predictive biomarker of subsequent metabolic diseases in mothers with GDM and offspring.
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Affiliation(s)
- María Del Mar Roca-Rodríguez
- Department of Endocrinology and Nutrition and Biomedical Research and Innovation Institute of Cadiz (INiBICA), Puerta del Mar University Hospital, 11009 Cadiz, Spain
| | - Pablo Ramos-García
- Department of Oral Medicine, School of Dentistry, University of Granada, 18071 Granada, Spain
| | - Cristina López-Tinoco
- Department of Endocrinology and Nutrition and Biomedical Research and Innovation Institute of Cadiz (INiBICA), Puerta del Mar University Hospital, 11009 Cadiz, Spain
- Department of Medicine, Cadiz University (UCA), 11003 Cadiz, Spain
| | - Manuel Aguilar-Diosdado
- Department of Endocrinology and Nutrition and Biomedical Research and Innovation Institute of Cadiz (INiBICA), Puerta del Mar University Hospital, 11009 Cadiz, Spain
- Department of Medicine, Cadiz University (UCA), 11003 Cadiz, Spain
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Shelake G, Baviskar S, Panda AK, Solankure S, Pandey K, Chauthe S, Behera SK. Exploring the rare variants associated with Type 2 Diabetes Mellitus in Indian population and its disease-drug association studies: an in-silico approach. J Biomol Struct Dyn 2023:1-16. [PMID: 37440426 DOI: 10.1080/07391102.2023.2233634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023]
Abstract
The diversified eating habits and religious culture of Indian population may be one of the reasons they largely contribute to the global diabetes burden. In the present investigation, an in-silico approach was carried out to explore hub genes in the Indian population with Type 2 Diabetes Mellitus (T2DM) that are scantily reported in the GWAS catalogue and probable potential anti-diabetic drugs from plants. This computational approach unwrapped LEP (leptin) as the hub gene among 170 genes analyzed with 14 non-synonymous single nucleotide polymorphisms (nsSNPs) with MAF < 0.01. The mutation of the LEP gene leads to a decrease in leptin concentration, which increases the risk of obesity and T2DM. According to the DUET webserver, 11 of 14 mutations examined were found to destabilize the LEP protein. Among 14, four barely reported LEP variants rs781301976 (I45N), rs776443424 (S52F), rs200915360 (D76Y), and rs1191666811 (D162N) were unzipped to be associated with T2DM, which may be the probable potential drug targets. The virtual screening revealed Vescalagin as having the highest binding energy among 336 natural compounds. Molecular docking of Vescalagin depicted higher binding energy (-9.0 kcal/mol) against mutated LEP [rs200915360 (D76Y)] compared to wild (-8.9 kcal/mol) and LEP-Metformin complexes. The trajectory analysis of MD simulations revealed that Vescalagin was more effective than Metformin in stabilizing the system. The present study suggests that the associations of the investigated nsSNPs in LEP [rs200915360 (D76Y)] and others can be key factors in the predominant role of T2DM morbidity in the Indian population that can be used as potential markers and drug targets for T2DM therapeutics.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ganesh Shelake
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
| | - Shraddha Baviskar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
| | - Amrita Kumari Panda
- Department of Biotechnology, Sant Gahira Guru Vishwavidyalaya, Sarguja, Ambikapur, Chhattisgarh, India
| | - Sunetra Solankure
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
| | - Komal Pandey
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
| | - Siddheshwar Chauthe
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
| | - Santosh Kumar Behera
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat, India
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178
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Movahedian M, Golzan SA, Asbaghi O, Prabahar K, Hekmatdoost A. Assessing the impact of non-nutritive sweeteners on anthropometric indices and leptin levels in adults: A GRADE-assessed systematic review, meta-analysis, and meta-regression of randomized clinical trials. Crit Rev Food Sci Nutr 2023:1-18. [PMID: 37440689 DOI: 10.1080/10408398.2023.2233615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
In today's world, non-nutritive sweeteners (NNSs) are recognized as substitutes for sugar or other high-calorie sweeteners, and their consumption is increasing dramatically. However, there is ongoing debate regarding the impact of NNSs on anthropometric indices. To fill this gap in knowledge, the current GRADE-assessed systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to evaluate the effects of artificial- and stevia-based sweeteners consumption on anthropometric indices and serum leptin level which is known as an appetite-regulating hormone. A comprehensive search was conducted on the Scopus, PubMed, and Embase databases up to November 2022 to identify randomized controlled trials (RCTs) investigating the effects of NNSs on anthropometric indices and serum leptin levels. Data extraction from qualified studies was performed independently by two researchers. A random- or fixed-effects model was used to estimate weighted mean differences (WMDs) and 95% confidence intervals (CIs) for anthropometric indices such as body weight (BW), body mass index (BMI), fat mass (FM), fat-free mass (FFM), waist circumference (WC) and serum leptin level. Heterogeneity between studies was assessed using Cochran's Q test and quantified using the I2 statistic. From a pool of 3212 studies initially identified, 20 studies with a total sample size of 2158 subjects were included in the analysis. Results of the pooled analysis showed that NNSs consumption had a significant reducing effect on BW (WMD: -1.02, 95% CI: -1.57, -0.46 Kg), FM (WMD: -1.09, 95% CI: -1.90, -0.29), and FFM (WMD: -0.83, 95% CI: -1.42, -0.23), but did not have any significant effect on BMI (WMD: -0.16, 95% CI: -0.35, 0.02), WC (WMD: -1.03, 95% CI: -2.77, 0.72), or serum leptin level (WMD: -2.17, 95% CI: -4.98, 0.65). The findings of this study indicate that the consumption of artificial- and stevia-based sweeteners may lead to a reduction in body weight, fat mass, and free fat mass.
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Affiliation(s)
- Mina Movahedian
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kousalya Prabahar
- Department of Pharmacy Practice, University of Tabuk, Tabuk, Saudi Arabia
| | - Azita Hekmatdoost
- Department of Clinical Nutrition & Dietetics, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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179
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Mohammed Saeed W, Nasser Binjawhar D. Association of Serum Leptin and Adiponectin Concentrations with Type 2 Diabetes Biomarkers and Complications Among Saudi Women. Diabetes Metab Syndr Obes 2023; 16:2129-2140. [PMID: 37465649 PMCID: PMC10351522 DOI: 10.2147/dmso.s405476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/10/2023] [Indexed: 07/20/2023] Open
Abstract
Objective Hyperglycemia and insulin resistance (IR) put obese women with Type 2 diabetes mellitus (T2DM) at risk for cardiovascular disease (CVD). Methods 150 T2DM women aged 30-45 were studied cross-sectionally at Madinah Hospital lab to find T2DM risk factors and their association with adiponectin/leptin levels. Results Women with T2DM showed greater fasting blood glucose (FBG), hemoglobin A1c (HbA1c), triglycerides (TG), body mass index (BMI), waist circumference (WC), insulin resistance (IR), high-sensitivity C-reactive protein (hs-CRP), and CVD risk (high atherogenic index of plasma (AIP) and leptin), but decreased high-density lipoprotein (HDL-cholesterol) and poor insulin sensitivity with low adiponectin. Obese women with T2DM had increased leptin and reduced adiponectin. Leptin levels were significantly related to IR, BMI, and AIP (B= 3.97, P= 0.02) but not WC. Leptin levels were negatively correlated with insulin sensitivity (IS) and HDL-c (P< 0.05). In linear regression analysis, adiponectin levels had a significant association with IS and HDL-c (P= 0.03, P= 0.04) but an inverse relationship with IR, BMI, WC (B=-2.91, P= 0.04), and AIP (P< 0.05). Conclusion Increased leptin levels are related to high IR, AIP, and BMI among T2DM female patients. Similarly, adiponectin levels decrease IS and HDL-c. Therefore, obese T2DM women with high leptin and low adiponectin levels should be periodically checked to avoid or decrease consequences like CVD.
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Affiliation(s)
- Walaa Mohammed Saeed
- Department of Medical Laboratory Technology, Faculty of Applied Medical Science, Taibah University, Tayba, Medina, 42353, Saudi Arabia
| | - Dalal Nasser Binjawhar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudia Arabia
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180
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Mancioppi V, Daffara T, Romanisio M, Ceccarini G, Pelosini C, Santini F, Bellone S, Mellone S, Baricich A, Rabbone I, Aimaretti G, Akinci B, Giordano M, Prodam F. A new mutation in the CAVIN1/PTRF gene in two siblings with congenital generalized lipodystrophy type 4: case reports and review of the literature. Front Endocrinol (Lausanne) 2023; 14:1212729. [PMID: 37501786 PMCID: PMC10369054 DOI: 10.3389/fendo.2023.1212729] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Lipodystrophy syndromes are characterized by a progressive metabolic impairment secondary to adipose tissue dysfunction and may have a genetic background. Congenital generalized lipodystrophy type 4 (CGL4) is an extremely rare subtype, caused by mutations in the polymerase I and transcript release factor (PTRF) gene. It encodes for a cytoplasmatic protein called caveolae-associated protein 1 (Cavin-1), which, together with caveolin 1, is responsible for the biogenesis of caveolae, being a master regulator of adipose tissue expandability. Cavin-1 is expressed in several tissues, including muscles, thus resulting, when dysfunctional, in a clinical phenotype characterized by the absence of adipose tissue and muscular dystrophy. We herein describe the clinical phenotypes of two siblings in their early childhood, with a phenotype characterized by a generalized reduction of subcutaneous fat, muscular hypertrophy, distinct facial features, myopathy, and atlantoaxial instability. One of the siblings developed paroxysmal supraventricular tachycardia leading to cardiac arrest at 3 months of age. Height and BMI were normal. Blood tests showed elevated CK, a mild increase in liver enzymes and triglycerides levels, and undetectable leptin and adiponectin concentrations. Fasting glucose and HbA1c were normal, while Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) was mildly elevated. Both patients were hyperphagic and had cravings for foods rich in fats and sugars. Genetic testing revealed a novel pathogenic mutation of the CAVIN1/PTRF gene (NM_012232 exon1:c T21A:p.Y7X) at the homozygous state. The diagnosis of lipodystrophy can be challenging, often requiring a multidisciplinary approach, given the pleiotropic effect, involving several tissues. The coexistence of generalized lack of fat, myopathy with elevated CK levels, arrhythmias, gastrointestinal dysmotility, and skeletal abnormalities should prompt the suspicion for the diagnosis of CGL4, although phenotypic variability may occur.
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Affiliation(s)
- Valentina Mancioppi
- Division of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Tommaso Daffara
- Endocrinology, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Martina Romanisio
- Endocrinology, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Giovanni Ceccarini
- Obesity and Lipodystrophy Center, Endocrinology Unit, University Hospital of Pisa, Pisa, Italy
| | - Caterina Pelosini
- Chemistry and Endocrinology Laboratory, Department of Laboratory Medicine, University Hospital of Pisa, Pisa, Italy
| | - Ferruccio Santini
- Obesity and Lipodystrophy Center, Endocrinology Unit, University Hospital of Pisa, Pisa, Italy
| | - Simonetta Bellone
- Division of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune and Allergic Diseases, University of Piemonte Orientale, Novara, Italy
| | - Simona Mellone
- Laboratory of Genetics, Struttura Complessa a Direzione Universitaria (SCDU) Biochimica Clinica, Ospedale Maggiore della Carità, Novara, Italy
| | - Alessio Baricich
- Physical Medicine and Rehabilitation, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Ivana Rabbone
- Division of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Gianluca Aimaretti
- Endocrinology, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Baris Akinci
- Division of Endocrinology and Metabolism, Faculty of Medicine, Dokuz Eylul University, Izmir, Türkiye
| | - Mara Giordano
- Laboratory of Genetics, Struttura Complessa a Direzione Universitaria (SCDU) Biochimica Clinica, Ospedale Maggiore della Carità, Novara, Italy
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Flavia Prodam
- Division of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Endocrinology, Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune and Allergic Diseases, University of Piemonte Orientale, Novara, Italy
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181
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Guadix P, Corrales I, Vilariño-García T, Rodríguez-Chacón C, Sánchez-Jiménez F, Jiménez-Cortegana C, Dueñas JL, Sánchez-Margalet V, Pérez-Pérez A. Expression of nutrient transporters in placentas affected by gestational diabetes: role of leptin. Front Endocrinol (Lausanne) 2023; 14:1172831. [PMID: 37497352 PMCID: PMC10366688 DOI: 10.3389/fendo.2023.1172831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/14/2023] [Indexed: 07/28/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is the most frequent pathophysiological state of pregnancy, which in many cases produces fetuses with macrosomia, requiring increased nutrient transport in the placenta. Recent studies by our group have demonstrated that leptin is a key hormone in placental physiology, and its expression is increased in placentas affected by GDM. However, the effect of leptin on placental nutrient transport, such as transport of glucose, amino acids, and lipids, is not fully understood. Thus, we aimed to review literature on the leptin effect involved in placental nutrient transport as well as activated leptin signaling pathways involved in the expression of placental transporters, which may contribute to an increase in placental nutrient transport in human pregnancies complicated by GDM. Leptin appears to be a relevant key hormone that regulates placental transport, and this regulation is altered in pathophysiological conditions such as gestational diabetes. Adaptations in the placental capacity to transport glucose, amino acids, and lipids may underlie both under- or overgrowth of the fetus when maternal nutrient and hormone levels are altered due to changes in maternal nutrition or metabolic disease. Implementing new strategies to modulate placental transport may improve maternal health and prove effective in normalizing fetal growth in cases of intrauterine growth restriction and fetal overgrowth. However, further studies are needed to confirm this hypothesis.
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Affiliation(s)
- Pilar Guadix
- Obstetrics and Gynecology Service, Virgen Macarena University Hospital, School of Medicine, University of Seville, Seville, Spain
| | - Isabel Corrales
- Obstetrics and Gynecology Service, Virgen Macarena University Hospital, School of Medicine, University of Seville, Seville, Spain
| | - Teresa Vilariño-García
- Clinical Biochemistry Service, Virgen del Rocio University Hospital, School of Medicine, University of Seville, Seville, Spain
| | - Carmen Rodríguez-Chacón
- Clinical Biochemistry Service, Virgen Macarena University Hospital and Department of Medical Biochemistry and Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
| | - Flora Sánchez-Jiménez
- Clinical Biochemistry Service, Virgen Macarena University Hospital and Department of Medical Biochemistry and Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
| | - Carlos Jiménez-Cortegana
- Clinical Biochemistry Service, Virgen Macarena University Hospital and Department of Medical Biochemistry and Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
| | - José L. Dueñas
- Obstetrics and Gynecology Service, Virgen Macarena University Hospital, School of Medicine, University of Seville, Seville, Spain
| | - Víctor Sánchez-Margalet
- Clinical Biochemistry Service, Virgen Macarena University Hospital and Department of Medical Biochemistry and Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
| | - Antonio Pérez-Pérez
- Clinical Biochemistry Service, Virgen Macarena University Hospital and Department of Medical Biochemistry and Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
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182
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Bocian-Jastrzębska A, Malczewska-Herman A, Rosiek V, Kos-Kudła B. Assessment of the Role of Leptin and Adiponectinas Biomarkers in Pancreatic Neuroendocrine Neoplasms. Cancers (Basel) 2023; 15:3517. [PMID: 37444627 DOI: 10.3390/cancers15133517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/23/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Data on the possible connection between circulating adipokines and PanNENs are limited. This novel study aimed to assess the serum levels of leptin and adiponectin and their ratio in patients with PanNENs and to evaluate the possible relationship between them and PanNEN's grade or stage, including the presence of metastases. The study group consisted of PanNENs (n = 83), and healthy controls (n = 39). Leptin and adiponectin measurement by an ELISA assay was undertaken in the entire cohort. The serum concentration of adiponectin was significantly higher in the control group compared to the study group (p < 0.001). The concentration of leptin and adiponectin was significantly higher in females than in males (p < 0.01). Anincreased leptin-adiponectin ratio was observed in well-differentiated PanNENs (G1) vs. moderatelydifferentiated PanNENs (G2) (p < 0.05). An increased leptin-adiponectin ratio was found in PanNENs with Ki-67 < 3% vs. Ki-67 ≥ 3% (p < 0.05). PanNENs with distal disease presented lower leptin levels (p < 0.001) and a decreased leptin-adiponectin ratio (p < 0.01) compared with the localized disease group. Leptin, adiponectin, and the leptin-adiponectin ratio may serve as potential diagnostic, prognostic, and predictive biomarkers for PanNENs. Leptin levels and the leptin-adiponectin ratio may play an important role as predictors of malignancy and metastasis in PanNENs.
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Affiliation(s)
- Agnes Bocian-Jastrzębska
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland
| | - Anna Malczewska-Herman
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland
| | - Violetta Rosiek
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland
| | - Beata Kos-Kudła
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland
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183
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Caruso A, Gelsomino L, Panza S, Accattatis FM, Naimo GD, Barone I, Giordano C, Catalano S, Andò S. Leptin: A Heavyweight Player in Obesity-Related Cancers. Biomolecules 2023; 13:1084. [PMID: 37509120 PMCID: PMC10377641 DOI: 10.3390/biom13071084] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Obesity, defined as the abnormal or excessive expansion of white adipose tissue, has reached pandemic proportions and is recognized as an important health concern since it is a common root for several comorbidities, including malignancies. Indeed, the current knowledge of the white adipose tissue, which shifts its role from an energy storage tissue to an important endocrine and metabolic organ, has opened up new avenues for the discovery of obesity's effects on tumor biology. In this review, we will report the epidemiological studies concerning the strong impact of obesity in several types of cancer and describe the mechanisms underlying the heterotypic signals between cancer cell lines and adipocytes, with particular emphasis on inflammation, the insulin/IGF-1 axis, and adipokines. Among the adipokines, we will further describe the in vitro, in vivo, and clinical data concerning the role of leptin, recognized as one of the most important mediators of obesity-associated cancers. In fact, leptin physiologically regulates energy metabolism, appetite, and reproduction, and several studies have also described the role of leptin in affecting cancer development and progression. Finally, we will summarize the newest pharmacological strategies aimed at mitigating the protumorigenic effects of leptin, underlining their mechanisms of action.
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Affiliation(s)
- Amanda Caruso
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Luca Gelsomino
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
- Centro Sanitario, Via P. Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Salvatore Panza
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Felice Maria Accattatis
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Giuseppina Daniela Naimo
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
- Centro Sanitario, Via P. Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Cinzia Giordano
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
- Centro Sanitario, Via P. Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
- Centro Sanitario, Via P. Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, Via P Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
- Centro Sanitario, Via P. Bucci, University of Calabria, Arcavacata di Rende (CS), 87036 Cosenza, Italy
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184
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Xiao Y, Wu W, Cai K, Jin L, Jia Y, Qiao N, Liu F, Ru S, Cao L, Gui S. Clinical Significance of Plasma Leptin and Its Receptors mRNA Expression in Craniopharyngiomas: A Prospective Study. Biomolecules 2023; 13:1078. [PMID: 37509115 PMCID: PMC10377231 DOI: 10.3390/biom13071078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Craniopharyngioma (CP) is a benign tumor with a high rate of obesity and frequent recurrence. Moreover, the role of leptin/leptin receptors axis in obesity and the prognosis of CP is still unknown. Plasma leptin concentration and mRNA expression of leptin receptors were assessed in patients with CP. Moreover, the association between leptin/leptin receptors axis, weight-related outcomes, and progression-free survival (PFS) were explored in CP patients. Leptin receptors overexpressed in CP tumor tissue were compared to normal brain tissue (p < 0.05); compared to healthy controls, the concentration of leptin was elevated in CP with or without matched age, sex, and body mass index (BMI) (p < 0.05). The high plasma leptin level was an independent risk predictor for significant weight gain (adjusted odds ratio (aOR) = 2.29, and p = 0.030) and new-onset obesity (aOR = 6.64, and p = 0.016). High plasma leptin level (adjusted hazard ratio (aHR) = 3.74, and p = 0.011) and leptin receptor (LEPR) mRNA expression (aHR = 3.12, and p = 0.045) were independent risk factors for poor PFS in CP. Inappropriately elevated leptin relative to BMI and its failure to inhibit further weight gain indicate the existence of leptin resistance in patients with CP. Leptin and LEPR were independent predictors for PFS of patients with CP. The leptin/leptin receptors axis may be a potential therapeutic target for obesity in patients with CP.
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Affiliation(s)
- Youchao Xiao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Wentao Wu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Kefan Cai
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Lu Jin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yanfei Jia
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Ning Qiao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Fangzheng Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Siming Ru
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Lei Cao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Songbai Gui
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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185
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de Assis GG, Murawska-Ciałowicz E. Exercise and Weight Management: The Role of Leptin-A Systematic Review and Update of Clinical Data from 2000-2022. J Clin Med 2023; 12:4490. [PMID: 37445524 DOI: 10.3390/jcm12134490] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/23/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
A well-balanced metabolism means a lower risk for metabolism-related neuropsychiatric disorders. Leptin is a secretory adipokine involved in the central control of appetite that appears to play a role in the etiology of feeding-related disorders. Additionally, the influence of exercise on feeding behaviors potentially modulates the circulation of metabolites that signal through the central nervous system. In this systematic review, we collected the recent clinical evidence on the effect of exercise on leptin concentrations in health individuals published from 2000 to 20 September 2022, according to the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA 2020 statement). Six hundred and thirty-eight papers were retrieved and forty-eight papers were included in the qualitative synthesis. Data supports that exercise positively influences appetite via enhancing peripheral and central leptin signaling (reuptake), especially during weight loss. Exercise modulation of leptin signaling through leptin receptors helps to stabilize increases in food intake during periods of negative energy balance, prior to a decrease in the body fat tissue content. At a high intensity, exercise appears to counteract leptin resistance.
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Affiliation(s)
- Gilmara Gomes de Assis
- Department of Physiology and Pathology, School of Dentistry, UNESP, São Paulo State University, Araraquara 14801-903, Brazil
| | - Eugenia Murawska-Ciałowicz
- Department of Physiology and Biochemistry, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
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Schlögl H, Villringer A, Miehle K, Fasshauer M, Stumvoll M, Mueller K. Metre leptin Robustly Increases Resting-state Brain Connectivity in Treatment-naïve Female Patients With Lipodystrophy. J Endocr Soc 2023; 7:bvad072. [PMID: 37404242 PMCID: PMC10315645 DOI: 10.1210/jendso/bvad072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Indexed: 07/06/2023] Open
Abstract
Context Research in lipodystrophy (LD) and its treatment with metreleptin has not only helped patients with LD but has opened new directions in investigating leptin's role in metabolism and the regulation of eating behavior. Previously, in a study with patients with LD undergoing metreleptin treatment using functional magnetic resonance imaging (MRI), we found significantly increased resting-state brain connectivity in 3 brain areas including the hypothalamus. Objective In this study, we aimed to reproduce our functional MRI findings in an independent sample and compare results to healthy participants. Design Measurements in 4 female patients with LD undergoing metreleptin treatment and 3 healthy untreated controls were performed at 4 different time points over 12 weeks. To identify treatment-related brain connectivity alterations, eigenvector centrality was computed from resting-state functional MRI data for each patient and each session. Thereafter, analysis aimed at detecting consistent brain connectivity changes over time across all patients. Results In parallel to metreleptin treatment of the patients with LD, we found a significant brain connectivity increase in the hypothalamus and bilaterally in posterior cingulate gyrus. Using a 3-factorial model, a significant interaction between group and time was found in the hypothalamus. Conclusions Investigating brain connectivity alterations with metreleptin treatment using an independent sample of patients with LD, we have reproduced an increase of brain connectivity in hedonic and homeostatic central nervous networks observed previously with metreleptin treatment. These results are an important contribution to ascertain brain leptin action and help build a foundation for further research of central nervous effects of this important metabolic hormone.
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Affiliation(s)
- Haiko Schlögl
- Department of Endocrinology, Nephrology, Rheumatology, Division of Endocrinology, University Hospital Leipzig, 04103 Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, 04103 Leipzig, Germany
| | - Arno Villringer
- Max-Planck-Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Day Clinic of Cognitive Neurology, University of Leipzig, 04103 Leipzig, Germany
| | - Konstanze Miehle
- Department of Endocrinology, Nephrology, Rheumatology, Division of Endocrinology, University Hospital Leipzig, 04103 Leipzig, Germany
| | - Mathias Fasshauer
- Institute of Nutritional Sciences, Justus-Liebig-University, 35392 Giessen, Germany
| | - Michael Stumvoll
- Department of Endocrinology, Nephrology, Rheumatology, Division of Endocrinology, University Hospital Leipzig, 04103 Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, 04103 Leipzig, Germany
| | - Karsten Mueller
- Max-Planck-Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Department of Neurology, Charles University, First Faculty of Medicine and General University Hospital, 120 00 Prague, Czech Republic
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187
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Dogan A, Sen I, Severcan M, Brockmann G, Severcan F. Strain and Depot-specific Differences in Adipose Tissues of Obese BFMI Mice. In Vivo 2023; 37:1672-1679. [PMID: 37369466 DOI: 10.21873/invivo.13253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND/AIM Obesity is associated with the structural and functional disorders related to the molecules of the tissues, cells, and membranes. This study aimed to examine the alterations in the secretion of inflammatory cytokines and metabolic factors and structural changes in inguinal (IF) and gonadal (GF) adipose tissues at the molecular level. MATERIALS AND METHODS The IF and GF tissues of Berlin Fat Mouse Inbred (BFMI) lines namely BFMI852, BFMI856, BFMI860, BFMI861 obese and DBAJ control mouse lines were used for mRNA expression and Attenuated Total Reflection - Fourier Transform Infrared Spectroscopy (ATR-FTIR) studies. The mRNA levels of inflammatory cytokines including leptin, interleukin 6 (IL-6), tumor necrosis factor-alpha (Tnf-α), and insulin-like growth factor-1 (Igf-1), and peroxisome proliferator-activated receptor gamma 2 (Pparγ-2), were investigated using quantitative reverse transcriptase real-time PCR (qRT-PCR). Infrared spectroscopy does not provide information about specific proteins, instead, it gives information about overall (total) proteins, which is called global information. Therefore, in the current study, adequate information about secondary structures of adipose tissues proteins was obtained using artificial neural network (ANN) and secondary derivative-vector normalization methods based on the spectral profiles. RESULTS According to the mRNA expression studies, high leptin resistance was found in all BFMI lines. Differences were observed in the levels of measured factors except for Igf-1 among BFMI lines. Protein secondary structure studies showed an increase in random coil contents, especially for BFMI860, which indicates denaturation of the proteins. CONCLUSION Among the spontaneous obese BFMI mouse lines, the BFMI860 line is the most suitable for obesity studies. Obesity-induced effect on the adipose tissues varies considerably with location, type of adipose tissue, and animal line.
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Affiliation(s)
- Ayca Dogan
- Department of Physiology, Faculty of Medicine, Altinbas University, Istanbul, Turkey
| | - Ilke Sen
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Mete Severcan
- Department of Electrical and Electronics Engineering, Faculty of Engineering and Natural Sciences, Altinbas University, Istanbul, Turkey
| | - Gudrun Brockmann
- Albrecht Daniel Thaer Institute for Agricultural and Horticultural Sciences, Humboldt University, Berlin, Germany
| | - Feride Severcan
- Department of Biophysics, Faculty of Medicine, Altinbas University, Istanbul, Turkey;
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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188
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Batterham RL, Espinosa N, Katlama C, McKellar M, Scholten S, Smith DE, Ait-Khaled M, George N, Wright J, Gordon LA, Moodley R, Wynne B, van Wyk J. Cardiometabolic Parameters 3 Years After Switch to Dolutegravir/Lamivudine vs Maintenance of Tenofovir Alafenamide-Based Regimens. Open Forum Infect Dis 2023; 10:ofad359. [PMID: 37520420 PMCID: PMC10375426 DOI: 10.1093/ofid/ofad359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
Background Cardiometabolic outcomes were investigated 3 years after switching to the 2-drug regimen dolutegravir/lamivudine (DTG/3TC) vs continuing 3-/4-drug tenofovir alafenamide (TAF)-based regimens in a multicenter phase 3 noninferiority study based on an open-label randomized design. Method Adults with virologically suppressed HIV-1 switched to once-daily DTG/3TC (n = 369) or continued TAF-based regimens (n = 372). Cardiometabolic health parameters were assessed through week 144 via mixed-model repeated measures or logistic regression analyses, adjusting for baseline variables. Results At week 144, 13% (42/316) of the DTG/3TC group and 12% (37/303) of the TAF-based regimen group had ≥10% weight gain from baseline (adjusted odds ratio, 1.11; 95% CI, .68-1.80). Adjusted change from baseline in serum leptin, a surrogate marker of adiposity, was similar between groups (treatment ratio, 1.00; 95% CI, .89-1.13). The lipid profile generally favored DTG/3TC in the baseline boosted subgroup. Adjusted odds revealed no clinically meaningful differences between groups: homeostatic model assessment of insulin resistance ≥2 (adjusted odds ratio, 0.79; 95% CI, .50-1.26), metabolic syndrome (International Diabetes Federation criteria, 0.99; .59-1.68), hepatic fibrosis (fibrosis-4 index score ≥1.45, 1.39; .63-3.06), and coronary artery disease risk (Framingham risk score ≥10%, 0.92; .56-1.49). Baseline variables and characteristics associated with odds of each cardiometabolic parameter outcome were consistent with known risk factors, including age, sex, race, and some disease characteristics. Conclusions Cardiometabolic health 3 years after switching to DTG/3TC was comparable to that for individuals continuing TAF-based regimens, further supporting DTG/3TC as a robust switch option with a stable metabolic profile. Trial registration ClinicalTrials.gov NCT03446573.
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Affiliation(s)
- Rachel L Batterham
- Department of Medicine, Centre for Obesity Research, University College London, London, UK
- National Institute of Health Research, University College London Hospitals Biomedical Research Centre, London, UK
| | - Nuria Espinosa
- Hospital Universitario Virgen del Rocío, Sevilla, Andalucía, Spain
| | - Christine Katlama
- Service de Maladies Infectieuses et Tropicales, AP-HP, Hôpital Pitié-Salpêtrière, INSERM–Sorbonne Universités, Paris, France
| | - Mehri McKellar
- Department of Medicine, School of Medicine, Duke University, Durham, North Carolina, USA
| | | | | | | | | | | | | | | | - Brian Wynne
- ViiV Healthcare, Durham, North Carolina, USA
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189
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Nakamoto A, Ohashi N, Sugawara L, Morino K, Ida S, Perry RJ, Sakuma I, Yanagimachi T, Fujita Y, Ugi S, Kume S, Shulman GI, Maegawa H. O-linked N-acetylglucosamine modification is essential for physiological adipose expansion induced by high-fat feeding. Am J Physiol Endocrinol Metab 2023; 325:E46-E61. [PMID: 37224467 PMCID: PMC10292976 DOI: 10.1152/ajpendo.00263.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/01/2023] [Accepted: 05/18/2023] [Indexed: 05/26/2023]
Abstract
Adipose tissues accumulate excess energy as fat and heavily influence metabolic homeostasis. O-linked N-acetylglucosamine (O-GlcNAc) modification (O-GlcNAcylation), which involves the addition of N-acetylglucosamine to proteins by O-GlcNAc transferase (Ogt), modulates multiple cellular processes. However, little is known about the role of O-GlcNAcylation in adipose tissues during body weight gain due to overnutrition. Here, we report on O-GlcNAcylation in mice with high-fat diet (HFD)-induced obesity. Mice with knockout of Ogt in adipose tissue achieved using adiponectin promoter-driven Cre recombinase (Ogt-FKO) gained less body weight than control mice under HFD. Surprisingly, Ogt-FKO mice exhibited glucose intolerance and insulin resistance, despite their reduced body weight gain, as well as decreased expression of de novo lipogenesis genes and increased expression of inflammatory genes, resulting in fibrosis at 24 weeks of age. Primary cultured adipocytes derived from Ogt-FKO mice showed decreased lipid accumulation. Both primary cultured adipocytes and 3T3-L1 adipocytes treated with OGT inhibitor showed increased secretion of free fatty acids. Medium derived from these adipocytes stimulated inflammatory genes in RAW 264.7 macrophages, suggesting that cell-to-cell communication via free fatty acids might be a cause of adipose inflammation in Ogt-FKO mice. In conclusion, O-GlcNAcylation is important for healthy adipose expansion in mice. Glucose flux into adipose tissues may be a signal to store excess energy as fat.NEW & NOTEWORTHY We evaluated the role of O-GlcNAcylation in adipose tissue in diet-induced obesity using adipose tissue-specific Ogt knockout mice. We found that O-GlcNAcylation in adipose tissue is essential for healthy fat expansion and that Ogt-FKO mice exhibit severe fibrosis upon long-term overnutrition. O-GlcNAcylation in adipose tissue may regulate de novo lipogenesis and free fatty acid efflux to the degree of overnutrition. We believe that these results provide new insights into adipose tissue physiology and obesity research.
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Affiliation(s)
- Akiko Nakamoto
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Natsuko Ohashi
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
- Department of Stem Cell Biology and Regenerative Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Lucia Sugawara
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Katsutaro Morino
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
- Institutional Research Office, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Shogo Ida
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Rachel J Perry
- Department of Medicine (Endocrinology), Yale University School of Medicine, New Haven, Connecticut, United States
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut, United States
| | - Ikki Sakuma
- Department of Medicine (Endocrinology), Yale University School of Medicine, New Haven, Connecticut, United States
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut, United States
| | | | - Yukihiro Fujita
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Satoshi Ugi
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Shinji Kume
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Gerald I Shulman
- Department of Medicine (Endocrinology), Yale University School of Medicine, New Haven, Connecticut, United States
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut, United States
| | - Hiroshi Maegawa
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
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190
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Reid BM, Aubuchon-Endsley NL, Tyrka AR, Marsit CJ, Stroud LR. Placenta DNA methylation levels of the promoter region of the leptin receptor gene are associated with infant cortisol. Psychoneuroendocrinology 2023; 153:106119. [PMID: 37100007 PMCID: PMC10225356 DOI: 10.1016/j.psyneuen.2023.106119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/17/2023] [Accepted: 04/18/2023] [Indexed: 04/28/2023]
Abstract
The intrauterine environment and early life stress regulation are widely recognized as an early foundation for lifelong physical and mental health. Methylation of CpG sites in the placenta represents an epigenetic modification that can potentially affect placental function, influence fetal development, and ultimately impact the health of offspring by programming the hypothalamic-pituitary-adrenal (HPA) axis stress response during prenatal development. Leptin, an adipokine produced by the placenta, is essential for energy homeostasis. It is also epigenetically regulated by promoter DNA methylation. Mounting evidence suggests that leptin also affects the stress response system. Though heterogeneity in the early stress response system may influence life-long mental and physical health, few studies explicitly examine the heterogeneity in the newborn stress response system. Less is known about leptin's association with the human hypothalamic-pituitary-adrenocortical (HPA) axis early in life. This study sought to serve as a proof of concept study investigating the relationship between newborn cortisol output trajectories and placental leptin DNA methylation in 117 healthy newborns from socioeconomically and racially- and ethnically-diverse families. We characterized heterogeneity in newborn cortisol output during the NICU Network Neurobehavioral Scales exam in the first week of life with latent growth mixture models. We then evaluated whether leptin promoter (LEP) methylation in placental samples was associated with newborn cortisol trajectories. Our findings suggest that increased placental LEP methylation, which corresponds to decreased leptin production, is associated with infant cortisol trajectories marked by increased cortisol output in the NNNS exam. These results provide important insights into the role of placental leptin DNA methylation in human newborn HPA axis development and subsequent developmental origins of health and disease processes.
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Affiliation(s)
- Brie M Reid
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, United States; Center for Behavioral and Preventive Medicine, The Miriam Hospital, United States
| | | | - Audrey R Tyrka
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, United States; Center for Behavioral and Preventive Medicine, The Miriam Hospital, United States
| | - Carmen J Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, United States
| | - Laura R Stroud
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, United States; Center for Behavioral and Preventive Medicine, The Miriam Hospital, United States.
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191
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Patial K, Mishra HP, Pal G, Suvvari TK, Mahapatra C, Amanullah NA, Singh I, Gaur SN, Behera RK. Assessment of Leptin Levels and Their Correlation With the Severity of Obstructive Sleep Apnea Syndrome: A Case-Control Study. Cureus 2023; 15:e42028. [PMID: 37593311 PMCID: PMC10431687 DOI: 10.7759/cureus.42028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 08/19/2023] Open
Abstract
Background Obstructive sleep apnea (OSA) is characterized by a combination of structural issues in the upper airway and imbalances in the respiratory control system. While numerous studies have linked OSA with obesity, it remains uncertain whether leptin, a hormone associated with fat, plays a role in the functional and anatomical defects that lead to OSA. Therefore, the aim of this study was to investigate whether leptin levels could be used as a predictor of OSA syndrome (OSAS). Methodology A case-control observational study was conducted, enrolling study participants who reported obesity (BMI > 30) within the range of >30 to <35 kg/m2, along with a short neck and a history of snoring, excessive daytime drowsiness, fatigue, or insomnia. Leptin levels and fasting blood sugar (FBS) were measured in all individuals. Additionally, the study evaluated the severity of OSAS using indicators such as the STOP BANG scores, apnea-hypopnea index, uvula grade score, and Epworth Sleepiness Scale scores. Results A total of 80 participants (40 cases and 40 controls) were included in the study. The mean leptin and FBS levels were significantly higher in cases compared to controls. Moreover, leptin levels exhibited a significant correlation with the severity indices of OSAS. Conclusion The study findings indicate that individuals with higher leptin levels tend to exhibit more severe OSAS symptoms. Furthermore, these elevated leptin levels contribute to the worsening of various OSA symptoms. Larger controlled studies have suggested that pharmacologically restoring the altered leptin levels may serve as a beneficial adjunct to treatment for alleviating OSAS symptoms.
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Affiliation(s)
- Kuldeep Patial
- Sleep Medicine Division, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, IND
| | - Hara Prasad Mishra
- Clinical Trial, All India Institute of Medical Sciences, New Delhi, IND
- Pharmacology and Therapeutics, University College of Medical Sciences, University of Delhi, New Delhi, IND
| | - Giridhari Pal
- Pharmacology, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, IND
| | - Tarun Kumar Suvvari
- Medicine and Surgery, Squad Medicine and Research (SMR), Visakhapatnam, IND
- Medicine and Surgery, Rangaraya Medical College, Kakinada, IND
| | | | - Nidhal A Amanullah
- Psychiatry and Behavioral Sciences, Sree Ramakrishna Mission Hospital, Thiruvananthapuram, IND
| | | | - S N Gaur
- Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, IND
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192
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Daniels MA, Fischer-Posovszky P, Boschmann M, Jumpertz-von Schwartzenberg R, Müller TD, Sandforth L, Frank-Podlech S, Hülskämper S, Peter A, Wabitsch M, Jordan J, Birkenfeld AL. Atrial natriuretic peptide and leptin interactions in healthy men. Front Endocrinol (Lausanne) 2023; 14:1195677. [PMID: 37455918 PMCID: PMC10348356 DOI: 10.3389/fendo.2023.1195677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/09/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Atrial natriuretic peptide (ANP), a hormone secreted from the heart, controls cardiovascular and renal functions including arterial blood pressure and natriuresis. ANP also exerts metabolic effects in adipose tissue, liver and skeletal muscle, and interacts with the secretion of adipokines. We tested the hypothesis that ANP lowers concentrations of the anorexigenic adipokine leptin in healthy humans in vivo. Methods Human ANP or matching placebo was infused intravenously (iv) into healthy men in a controlled clinical trial. Results Within 135 minutes of iv ANP infusion, we observed an acute decrease in plasma leptin levels compared to controls. Free fatty acids markedly increased with ANP infusion in vivo, indicating activated lipolysis. In human SGBS adipocytes, ANP suppressed leptin release. Discussion The study shows that the cardiac hormone ANP reduces the levels of the anorexigenic adipokine leptin in healthy humans, providing further support for ANP as a cardiomyokine in a heart - adipose tissue axis. (registered in the German Clinical Trials Register and the WHO International Clinical Trials Registry Platform was granted under DRKS00024559).
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Affiliation(s)
- Martin A. Daniels
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin, Berlin, Germany
| | - Pamela Fischer-Posovszky
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Center Ulm, Ulm, Germany
| | - Michael Boschmann
- Experimental and Clinical Research Center, Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Reiner Jumpertz-von Schwartzenberg
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Tübingen, Germany
| | - Timo D. Müller
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Leontine Sandforth
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Tübingen, Germany
| | - Sabine Frank-Podlech
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
| | - Sonja Hülskämper
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
| | - Andreas Peter
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tübingen, Tübingen, Germany
| | - Martin Wabitsch
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Center Ulm, Ulm, Germany
| | - Jens Jordan
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
- Chair of Aerospace Medicine, Medical Faculty, University of Cologne, Cologne, Germany
| | - Andreas L. Birkenfeld
- German Center for Diabetes Research (DZD e. V.), Neuherberg, Germany
- Institute of Diabetes Research and Metabolic Disease (IDM) of the Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, Endocrinology, Diabetology and Nephrology, University Hospital Tübingen, Tübingen, Germany
- Department of Diabetes, Life Sciences & Medicine Cardiovascular Medicine & Sciences, Kings College London, London, United Kingdom
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Nishio M, Atagi S, Goto K, Hosomi Y, Seto T, Hida T, Nakagawa K, Yoshioka H, Nogami N, Maemondo M, Nagase S, Okamoto I, Yamamoto N, Igawa Y, Tajima K, Fukuoka M, Yamamoto N, Nishio K. Biomarker analysis of the phase II JO25567 study comparing erlotinib with or without bevacizumab in first-line advanced EGFR+non-small-cell lung cancer. Transl Lung Cancer Res 2023; 12:1167-1184. [PMID: 37425411 PMCID: PMC10326775 DOI: 10.21037/tlcr-22-632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 05/17/2023] [Indexed: 07/11/2023]
Abstract
Background Epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs), such as erlotinib, are standard-of-care for patients with EGFR mutation-positive non-small-cell lung cancer (NSCLC), but most patients progress within 1 year. Previously, we demonstrated that erlotinib plus bevacizumab (EB) improved progression-free survival (PFS) in patients with EGFR-positive non-squamous NSCLC in the randomized JO25567 study. To understand this effect, we conducted comprehensive exploratory biomarker analyses. Methods Using blood and tissue specimens from patients enrolled in the JO25567 study, angiogenesis-related serum factors, plasma vascular endothelial growth factor-A (pVEGFA), angiogenesis-related gene polymorphisms, and messenger RNAs (mRNAs) in tumor tissue were analyzed. Interactions between potential predictors and treatment effect on PFS were analyzed in a Cox model. Continuous variable predictors were evaluated by multivariate fractional polynomial interaction methodology and subpopulation treatment effect pattern plotting (STEPP). Results Overall, 152 patients treated with EB or erlotinib alone (E) were included in the analysis. Among 26 factors analyzed in 134 baseline serum samples, high follistatin and low leptin were identified as potential biomarkers for worse and better outcomes with EB, with interaction P values of 0.0168 and 0.0049, respectively. Serum concentrations of 12 angiogenic factors were significantly higher in patients with high follistatin. Low pVEGFA levels related to better outcomes with EB, interaction P=0.033. VEGF-A165a was the only predictive tissue mRNA, showing a similar trend to pVEGFA. No valid results were obtained in 13 polymorphisms of eight genes. Conclusions EB treatment showed better treatment outcomes in patients with low pVEGFA and serum leptin, and limited efficacy in patients with high serum follistatin.
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Affiliation(s)
- Makoto Nishio
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shinji Atagi
- Health Management Center, Japan Community Health Care Organization, Yamato Koriyama Hospital, Nara, Japan
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Yukio Hosomi
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Takashi Seto
- Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Toyoaki Hida
- Lung Cancer Center, Central Japan International Medical Center, Gifu, Japan
| | - Kazuhiko Nakagawa
- Department of Medical Oncology, Kindai University, Faculty of Medicine, Osaka, Japan
| | - Hiroshige Yoshioka
- Department of Thoracic Oncology, Kansai Medical University Hospital, Osaka, Japan
| | - Naoyuki Nogami
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University, Graduate School of Medicine, Ehime, Japan
| | - Makoto Maemondo
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Seisuke Nagase
- Department of Thoracic Oncology, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noboru Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | | | | | - Masahiro Fukuoka
- Department of Medical Oncology, Izumi City General Hospital, Osaka, Japan
| | | | - Kazuto Nishio
- Department of Medical Oncology, Kindai University, Faculty of Medicine, Osaka, Japan
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Maturana FM, Rolf R, Schweda S, Reimer M, Widmann M, Burgstahler C, Nieß AM, Krauss I, Munz B. Adipokines as Predictive Biomarkers for Training Adaptation in Subjects with Multimorbidity-A Hypothesis-Generating Study. J Clin Med 2023; 12:4376. [PMID: 37445411 DOI: 10.3390/jcm12134376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/18/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Physical exercise exerts a positive effect on many chronic conditions, specifically lifestyle-related diseases such as overweight and obesity, type 2 diabetes mellitus (T2DM), cardiovascular conditions and osteoarthritis (OA). As a result of common risk factors, most of these patients present with multiple conditions. Exercise- and disease-related biomarkers, such as adipokines, are emerging tools in training supervision and regulation; however, their significance in subjects with multimorbidities is unknown. SUBJECTS AND METHODS To address this issue, adipokines leptin, adiponectin and resistin were assessed in a cohort of subjects with multimorbidities (n = 39) presenting with at least two of the abovementioned conditions or relevant risk factors before and after a six-month exercise and lifestyle intervention program ('MultiPill-Exercise'), and correlated with training adaptation, namely changes in relative maximum oxygen uptake (V·O2max). RESULTS There was a significant negative correlation between baseline leptin concentrations and training effect for relative V·O2max (after three months: rho = -0.54, p = 0.020 *; after six months: rho = -0.45, p = 0.013 *), with baseline leptin explaining 35% of the variance in delta relative V·O2max after three months and 23% after six months. CONCLUSIONS Leptin might be a suitable surrogate biomarker in the context of exercise-based lifestyle intervention programs in subjects with multimorbidity.
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Affiliation(s)
- Felipe Mattioni Maturana
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Rebecca Rolf
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Simone Schweda
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Max Reimer
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Manuel Widmann
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Christof Burgstahler
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, Eberhard Karls University of Tübingen, D-72076 Tübingen, Germany
| | - Andreas M Nieß
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, Eberhard Karls University of Tübingen, D-72076 Tübingen, Germany
| | - Inga Krauss
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, Eberhard Karls University of Tübingen, D-72076 Tübingen, Germany
| | - Barbara Munz
- Department of Sports Medicine, University Hospital Tübingen, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, Eberhard Karls University of Tübingen, D-72076 Tübingen, Germany
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Tremblay D, Dougherty M, Mascarenhas J, Gallagher EJ. Energy expenditure in myelofibrosis patients treated with a JAK1/2 inhibitor. Front Endocrinol (Lausanne) 2023; 14:1141029. [PMID: 37455900 PMCID: PMC10339379 DOI: 10.3389/fendo.2023.1141029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
Weight gain is a known adverse effect of ruxolitinib, a JAK1/2 inhibitor that is the mainstay of treatment for many patients with myelofibrosis. The mechanisms behind weight increase with ruxolitinib is incompletely understood, although decreased adipose tissue lipolysis and increased appetite due to blocking the effects of leptin in the hypothalamus have been proposed. In order to explore the metabolic changes in ruxolitinib-treated patients with myelofibrosis, we performed a pilot study to assess the feasibility of using a portable indirect calorimeter to quantify energy expenditure before and during ruxolitinib treatment and report the results of two patients. Waist circumference increased during ruxolitinib treatment in both patients. Energy expenditure initially increased followed by a decrease and then increase again, but to levels below baseline. These results suggest that weight gain secondary to ruxolitinib may be related to changes in whole body energy expenditure.
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Affiliation(s)
- Douglas Tremblay
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mikaela Dougherty
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - John Mascarenhas
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Emily Jane Gallagher
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Wu TJ, Wu DA, Hsu BG. Serum Leptin Level is Positively Correlated with Aortic Stiffness in Patients with Type 2 Diabetes Mellitus. FRONT BIOSCI-LANDMRK 2023; 28:128. [PMID: 37395038 DOI: 10.31083/j.fbl2806128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/15/2023] [Accepted: 06/02/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND The global number of people living with diabetes mellitus (DM) continues to grow. Obesity, smoking, hypercholesterolemia, and hypertension are independently correlated with the risk of cardiovascular disease (CVD) in diabetic patients regardless of differences in race or ethnicity. We aimed to investigate the relationship between serum leptin levels and aortic stiffness in patients with type 2 DM to identify cardiovascular risk at the early stage. METHODS A total of 128 diabetic patients were enrolled after screening for eligibility at a medical center in Eastern Taiwan. Aortic stiffness was defined as having a carotid-femoral pulse wave velocity (cfPWV) of >10 m/s using applanation tonometry. Fasting serum levels of leptin and other associated biomarkers were determined by enzyme immunoassay or biochemical analyses. RESULTS Forty-six diabetic patients with a cfPWV of >10 m/s were included in the aortic stiffness group. Compared with the control group (n = 82), our aortic stiffness group was significantly older (p = 0.019) and had higher body fat mass (p = 0.002), systolic blood pressure (SBP) (p < 0.001), serum triglyceride (p = 0.02), and serum leptin (p < 0.001). Aortic stiffness was also associated with insulin resistance (p = 0.026) and poorer blood sugar control (higher fasting glucose (p = 0.044) and glycated hemoglobin (HbA1c) (p = 0.049)). In the multivariable linear regression analyses examining the correlations between aortic stiffness and clinical variables, we found that age (β = 0.291; p < 0.001), SBP (β = 0.176; p = 0.033), logarithmically transformed urinary albumin-creatinine ratio (β = 0.256; p = 0.002), and serum leptin levels (β = 0.244; p = 0.002) were independently associated with cfPWV values. The analyses showed that only leptin was correlated with a higher probability of aortic stiffness (odds ratio: 1.055, 95% confidence interval: 1.005-1.107, p = 0.031). CONCLUSIONS The results suggested that serum leptin is positively associated with aortic stiffness in patients with type 2 DM.
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Affiliation(s)
- Tsung-Jui Wu
- Division of Nephrology, Department of Medicine, Hualien Armed Forces General Hospital, 97144 Hualien, Taiwan
- Institute of Medical Sciences, Tzu Chi University, 97144 Hualien, Taiwan
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, 11490 Taipei, Taiwan
| | - Du-An Wu
- Division of Metabolism and Endocrinology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 97144 Hualien, Taiwan
| | - Bang-Gee Hsu
- Institute of Medical Sciences, Tzu Chi University, 97144 Hualien, Taiwan
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 97144 Hualien, Taiwan
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197
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Khouma A, Moeini MM, Plamondon J, Richard D, Caron A, Michael NJ. Histaminergic regulation of food intake. Front Endocrinol (Lausanne) 2023; 14:1202089. [PMID: 37448468 PMCID: PMC10338010 DOI: 10.3389/fendo.2023.1202089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/06/2023] [Indexed: 07/15/2023] Open
Abstract
Histamine is a biogenic amine that acts as a neuromodulator within the brain. In the hypothalamus, histaminergic signaling contributes to the regulation of numerous physiological and homeostatic processes, including the regulation of energy balance. Histaminergic neurons project extensively throughout the hypothalamus and two histamine receptors (H1R, H3R) are strongly expressed in key hypothalamic nuclei known to regulate energy homeostasis, including the paraventricular (PVH), ventromedial (VMH), dorsomedial (DMH), and arcuate (ARC) nuclei. The activation of different histamine receptors is associated with differential effects on neuronal activity, mediated by their different G protein-coupling. Consequently, activation of H1R has opposing effects on food intake to that of H3R: H1R activation suppresses food intake, while H3R activation mediates an orexigenic response. The central histaminergic system has been implicated in atypical antipsychotic-induced weight gain and has been proposed as a potential therapeutic target for the treatment of obesity. It has also been demonstrated to interact with other major regulators of energy homeostasis, including the central melanocortin system and the adipose-derived hormone leptin. However, the exact mechanisms by which the histaminergic system contributes to the modification of these satiety signals remain underexplored. The present review focuses on recent advances in our understanding of the central histaminergic system's role in regulating feeding and highlights unanswered questions remaining in our knowledge of the functionality of this system.
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Affiliation(s)
- Axelle Khouma
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Moein Minbashi Moeini
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Julie Plamondon
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
| | - Denis Richard
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Medicine, Université Laval, Québec, QC, Canada
| | - Alexandre Caron
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
- Montreal Diabetes Research Center, Montreal, QC, Canada
| | - Natalie Jane Michael
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
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Bloomfield SA, Swift SN, Metzger CE, Baek K, De Souza MJ, Lenfest S, Shirazi-Fard Y, Hogan HA. Exercise training modifies the bone and endocrine response to graded reductions in energy availability in skeletally mature female rodents. Front Endocrinol (Lausanne) 2023; 14:1141906. [PMID: 37455901 PMCID: PMC10338226 DOI: 10.3389/fendo.2023.1141906] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/23/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Reductions in energy availability leading to weight loss can induce loss of bone and impact important endocrine regulators of bone integrity. We sought to elucidate whether endurance exercise (EX) can mitigate bone loss observed in sedentary (SED) skeletally mature rodents subjected to graded energy deficits. Methods Female virgin rats (n=84, 5-mo-old; 12/group) were randomized to baseline controls and either sedentary (SED) or exercise (EX) conditions, and within each exercise status to adlib-fed (ADLIB), or moderate (MOD) or severe (SEV) energy restriction diets for 12 weeks. Rats assigned to EX groups performed treadmill running to increase weekly energy expenditure by 10%. MOD-ER-SED, SEV-ER-SED, MOD-ER-EX and SEV-ER-EX were fed modified AIN93M diets with 20%, 40% 10%, and 30% less energy content, respectively, with 100% of all other nutrients provided. Results Energy availability (EA) was effectively reduced by ~14% and ~30% in the MOD-ER and SEV-ER groups, respectively. MOD-ER for 12 weeks resulted in few negative impacts on bone and, except for serum leptin in MOD-ER-SED rats, no significant changes in endocrine factors. By contrast, SEV-ER in SED rats resulted in significantly lower total body and femoral neck bone mass, and reduced serum estradiol, IGF-1 and leptin. EX rats experiencing the same reduction in energy availability as SEV-ER-SED exhibited higher total body mass, lean mass, total BMC, and higher serum IGF-1 at the end of 12 weeks. Bone mechanical properties at 3 bone sites (mid-femur, distal femur, femoral neck) were minimally impacted by ER but positively affected by EX. Discussion These findings indicate that combining increased EX energy expenditure with smaller reductions in energy intake to achieve a targeted reduction in EA provides some protection against loss of bone mass and lean mass in skeletally mature female rats, likely due to better preservation of circulating IGF-1, and that bone mechanical integrity is not significantly degraded with either moderate or severe reduced EA.
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Affiliation(s)
- Susan A. Bloomfield
- Bone Biology Laboratory, Department of Kinesiology & Sport Management, Texas A&M University, College Station, TX, United States
- Bone Biology Laboratory, Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Sibyl N. Swift
- Bone Biology Laboratory, Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Corinne E. Metzger
- Bone Biology Laboratory, Department of Kinesiology & Sport Management, Texas A&M University, College Station, TX, United States
| | - Kyunghwa Baek
- Bone Biology Laboratory, Department of Nutrition, Texas A&M University, College Station, TX, United States
| | - Mary Jane De Souza
- Women’s Health and Exercise Laboratory, Department of Kinesiology, The Pennsylvania State University, University Park, PA, United States
- Women’s Health and Exercise Laboratory, Department of Physiology, The Pennsylvania State University, University Park, PA, United States
| | - Scott Lenfest
- Bone Mechanics Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, TX, United States
| | - Yasaman Shirazi-Fard
- Bone Mechanics Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, TX, United States
| | - Harry A. Hogan
- Bone Mechanics Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, TX, United States
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Lin Z, Yu G, Xiong S, Lin Y, Li Z. Leptin and melatonin's effects on OVX rodents' bone metabolism. Front Endocrinol (Lausanne) 2023; 14:1185476. [PMID: 37455920 PMCID: PMC10338219 DOI: 10.3389/fendo.2023.1185476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/29/2023] [Indexed: 07/18/2023] Open
Abstract
Purpose This study aims to examine the effects of leptin and melatonin intervention on bone metabolism in ovariectomize (OVX) rodents, as well as their potential mechanisms of action. Methods Prepare an OVX model of osteoporosis in rodents and validate the model by collecting bilateral tibia samples for Micro-CT scanning and histological analysis. A control group of normal size, the OVX group, the OVX+Sema4D (Semaphorin 4D) group, the OVX+Sema4D+Leptin group, the OVX+Sema4D+ Melatonin(MT) group and the OVX+Sema4D+Leptin+ MT group were the experimental groups. Adenovirus vector construction and tibial medullary injection validation were conducted in accordance with the aforementioned experimental groups. Four groups of rats were injected with the Sema4D overexpression adenovirus vector into the tibial medullary cavity, and two groups were injected with the Leptin overexpression adenovirus vector. The repair of osteoporosis was observed using micro-CT and histological analysis. Immunohistochemical detection of bone morphogenetic protein-2 (BMP-2) expression in bone tissue was employed to ascertain the amount of osteoclasts in the upper tibial metaphysis, utilizing TRAP(tartrate-resistant acid phosphatase) staining. Results Increased levels of BV/TV, Tb.N, BMD, and BMC were seen in the OVX+ Sema4D+Leptin, OVX+ Sema4D+MT, and OVX+ Sema4D+Leptin+ MT groups compared to the OVX group, whereas Tb. Sp levels were lowered. When compared to the Sema4D overexpression group, the trabecular bone structure of the OVX + Sema4D + Leptin, OVX + Sema4D + MT, and OVX + Sema4D + Leptin + MT groups is largely intact, tends to be closer, and the amount of trabecular bone increases. The OVX + Sema4D + Leptin + MT group in particular.The expression of BMP-2 was dramatically upregulated (p<0.05), the number of TRAP-stained osteoclasts was significantly reduced (p<0.05), and BALP(bone-derived alkaline phosphatase) and TRAP-5b(tartrate-resistant acid phosphatase-5b) activities were significantly downregulated (p<0.05). Conclusion In rats with osteoporosis, leptin and melatonin can be seen to augment the trabecular microstructure of the bone, augment bone growth, diminish trabecular harm, and mend the bone. The combined effect is more powerful.
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Elgohary S, El Tayebi HM. Inflammasomes in breast cancer: the ignition spark of progression and resistance? Expert Rev Mol Med 2023; 25:e22. [PMID: 37337426 DOI: 10.1017/erm.2023.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Inflammation and immune evasion are major key players in breast cancer (BC) progression. Recently, the FDA approved the use of anti-programmed death-ligand 1 antibody (anti-PD-L1) and phosphoinositide 3-kinase (PI3K) inhibitors against aggressive BC. Despite the paradigm shift in BC treatments, patients still suffer from resistance, recurrence and serious immune-related adverse events. These obstacles require unravelling of the hidden molecular contributors for such therapy failure hence yielding therapeutics that are at least as efficient yet safer. Inflammasome pathway is activated when the pattern recognition receptor senses danger signals (danger-associated molecular patterns) from damagedRdying cells or pathogen-associated molecular patterns found in microbes, leading to secretion of the active pro-inflammatory cytokines interleukin-1β (IL-1β) and interleukin-18 (IL-18). It has been shown throughout numerous studies that inflammasome pathway enhanced invasion, metastasis, provoked BC progression and therapy resistance. Additionally, inflammasomes upregulated the proliferative index ki67 and enhanced PD-L1 expression leading to immunotherapy resistance. IL-1β contributed to significant decrease in oestrogen receptor levels and promoted BC chemo-resistance. High levels of IL-18 in sera of BC patients were associated with worst prognosis. Stimulation of purinergic receptors and modulation of adipokines in obese subjects activated inflammasomes that evoked radiotherapy resistance and BC progression. The micro RNA miR-223-3p attenuated the inflammasome over-expression leading to lowered tumour volume and lessened angiogenesis in BC. This review sheds the light on the molecular pathways of inflammasomes and their impacts in distinct BC subtypes. In addition, it highlights novel strategies in treatment and prevention of BC.
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Affiliation(s)
- Sawsan Elgohary
- Clinical Pharmacology and Pharmacogenomics Research Group, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Hend M El Tayebi
- Clinical Pharmacology and Pharmacogenomics Research Group, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
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