101
|
Evans M, Morgan AR, Patel D, Dhatariya K, Greenwood S, Newland-Jones P, Hicks D, Yousef Z, Moore J, Kelly B, Davies S, Dashora U. Risk Prediction of the Diabetes Missing Million: Identifying Individuals at High Risk of Diabetes and Related Complications. Diabetes Ther 2021; 12:87-105. [PMID: 33190216 PMCID: PMC7843706 DOI: 10.1007/s13300-020-00963-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/28/2020] [Indexed: 01/08/2023] Open
Abstract
Early diagnosis and effective management of type 2 diabetes (T2D) are crucial in reducing the risk of developing life-changing complications such as heart failure, stroke, kidney disease, blindness and amputation, which are also associated with significant costs for healthcare providers. However, as T2D symptoms often develop slowly it is not uncommon for people to live with T2D for years without being aware of their condition-commonly known as the undiagnosed missing million. By the time a diagnosis is received, many individuals will have already developed serious complications. While the existence of undiagnosed diabetes has long been recognised, wide-reaching awareness among the general public, clinicians and policymakers is lacking, and there is uncertainty in how best to identify high-risk individuals. In this article we have used consensus expert opinion alongside the available evidence, to provide support for the diabetes healthcare community regarding risk prediction of the missing million. Its purpose is to provide awareness of the risk factors for identifying individuals at high, moderate and low risk of T2D and T2D-related complications. The awareness of risk predictors, particularly in primary care, is important, so that appropriate steps can be taken to reduce the clinical and economic burden of T2D and its complications.
Collapse
Affiliation(s)
- Marc Evans
- Diabetes Resource Centre, University Hospital Llandough, Cardiff, UK.
| | | | - Dipesh Patel
- Department of Diabetes, Division of Medicine, University College London, Royal Free NHS Trust, London, UK
| | - Ketan Dhatariya
- Elsie Bertram Diabetes Centre, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Sharlene Greenwood
- Renal Medicine, King's College Hospital, London, UK
- Renal Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | | | | | - Zaheer Yousef
- Wales Heart Research Institute, Cardiff University, Cardiff, UK
| | - Jim Moore
- Stoke Road Surgery, Bishop's Cleeve, Cheltenham, UK
| | | | | | - Umesh Dashora
- East Sussex Healthcare NHS Trust, St Leonards-on-Sea, UK
| |
Collapse
|
102
|
Lu J, Dumitrascu B, McDowell IC, Jo B, Barrera A, Hong LK, Leichter SM, Reddy TE, Engelhardt BE. Causal network inference from gene transcriptional time-series response to glucocorticoids. PLoS Comput Biol 2021; 17:e1008223. [PMID: 33513136 PMCID: PMC7875426 DOI: 10.1371/journal.pcbi.1008223] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 02/10/2021] [Accepted: 08/07/2020] [Indexed: 11/19/2022] Open
Abstract
Gene regulatory network inference is essential to uncover complex relationships among gene pathways and inform downstream experiments, ultimately enabling regulatory network re-engineering. Network inference from transcriptional time-series data requires accurate, interpretable, and efficient determination of causal relationships among thousands of genes. Here, we develop Bootstrap Elastic net regression from Time Series (BETS), a statistical framework based on Granger causality for the recovery of a directed gene network from transcriptional time-series data. BETS uses elastic net regression and stability selection from bootstrapped samples to infer causal relationships among genes. BETS is highly parallelized, enabling efficient analysis of large transcriptional data sets. We show competitive accuracy on a community benchmark, the DREAM4 100-gene network inference challenge, where BETS is one of the fastest among methods of similar performance and additionally infers whether causal effects are activating or inhibitory. We apply BETS to transcriptional time-series data of differentially-expressed genes from A549 cells exposed to glucocorticoids over a period of 12 hours. We identify a network of 2768 genes and 31,945 directed edges (FDR ≤ 0.2). We validate inferred causal network edges using two external data sources: Overexpression experiments on the same glucocorticoid system, and genetic variants associated with inferred edges in primary lung tissue in the Genotype-Tissue Expression (GTEx) v6 project. BETS is available as an open source software package at https://github.com/lujonathanh/BETS.
Collapse
Affiliation(s)
- Jonathan Lu
- Department of Computer Science, Princeton University, Princeton, New Jersey, United States of America
| | - Bianca Dumitrascu
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America
| | - Ian C. McDowell
- Element Genomics, A UCB Company, Durham, North Carolina, United States of America
| | - Brian Jo
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America
| | - Alejandro Barrera
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Linda K. Hong
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
| | - Sarah M. Leichter
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
| | - Timothy E. Reddy
- Department of Genome Sciences, Duke University, Durham, North Carolina, United States of America
| | - Barbara E. Engelhardt
- Department of Computer Science, Princeton University, Princeton, New Jersey, United States of America
- Center for Statistics and Machine Learning, Princeton University, Princeton, New Jersey, United States of America
| |
Collapse
|
103
|
Sumińska M, Podgórski R, Fichna P, Fichna M. Steroid Metabolism in Children and Adolescents With Obesity and Insulin Resistance: Altered SRD5A and 20α/20βHSD Activity. Front Endocrinol (Lausanne) 2021; 12:759971. [PMID: 34764940 PMCID: PMC8577858 DOI: 10.3389/fendo.2021.759971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/11/2021] [Indexed: 01/22/2023] Open
Abstract
Alterations in glucocorticoid metabolism may contribute to the development of obesity and insulin resistance (IR). Obesity in turn affects the androgen balance. The peripheral metabolism of steroids is equally an important determinant of their bioavailability and activity. The aim of this study was to evaluate steroid metabolism in obese children and to define which enzyme alterations are associated with IR. Clinical characteristics and anthropometric measurements were determined in 122 obese children and adolescents (72 girls, 50 boys) aged 8 - 18 years. 26 of them (21.3%) were diagnosed with IR (13 boys, 13 girls). Routine laboratory tests were performed and 24h urinary steroid excretion profiles were analyzed by gas chromatography/mass spectrometry. Positive relationship between 5α-reductase (SRD5A) activity and IR was found. According to the androsterone to etiocholanolone (An/Et) ratio the activity of SRD5A was significantly increased in obese children with IR, but the difference remained insignificant once the 5α-dihydrotestosterone to testosterone (5αDHT/T) ratio was considered. Furthermore, this relationship persisted in boys but was not observed in girls. The activity of 20α-hydroxysteroid dehydrogenase (20αHSD) and 20β-hydroxysteroid dehydrogenase (20βHSD) was reduced only in obese girls with IR. Conclude, in the context of obese children and adolescents with IR, we surmise that increased SRD5A represents a compensatory mechanism to reduce local glucocorticoid availability. This phenomenon is probably different in the liver (restriction) and in the adipose tissue (expected increase in activity). We show significant changes in 20αHSD and 20βHSD activity in obese girls with IR, but it is difficult to clearly determine whether the activity of these enzymes is an indicator of the function in their ovaries or adrenal glands.
Collapse
Affiliation(s)
- Marta Sumińska
- Department of Pediatric Diabetes and Obesity, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
- *Correspondence: Marta Sumińska,
| | - Rafał Podgórski
- Centre for Innovative Research in Medical and Natural Sciences, University of Rzeszow, Rzeszow, Poland
- Department of Biochemistry, Institute of Medical Sciences, Collegium of Medical Sciences, University of Rzeszow, Rzeszow, Poland
| | - Piotr Fichna
- Department of Pediatric Diabetes and Obesity, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Marta Fichna
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
| |
Collapse
|
104
|
Shapey IM, Tan ZL, Gioco R, Khambalia H, Fullwood C, Yiannoullou P, Summers A, Hanley NA, Augustine T, Rutter MK, van Dellen D. Peri-transplant glycaemic control as a predictor of pancreas transplant survival. Diabetes Obes Metab 2021; 23:49-57. [PMID: 32893472 DOI: 10.1111/dom.14181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/04/2020] [Accepted: 08/20/2020] [Indexed: 11/30/2022]
Abstract
AIMS The relationship between peri-transplant glycaemic control and outcomes following pancreas transplantation is unknown. We aimed to relate peri-transplant glycaemic control to pancreas graft survival and to develop a framework for defining early graft dysfunction. METHODS Peri-transplant glycaemic control profiles over the first 5 days postoperatively were determined by an area under the curve [AUC; average daily glucose level (mmol/L) × time (days)] and the coefficient of variation of mean daily glucose levels. Peri-transplant hyperglycaemia was defined as an AUC ≥35 mmol/day/L (daily mean blood glucose ≥7 mmol/L). Risks of graft failure associated with glycaemic control and variability and peri-transplant hyperglycaemia were determined using covariate-adjusted Cox regression. RESULTS We collected 7606 glucose readings over 5 days postoperatively from 123 pancreas transplant recipients. Glucose AUC was a significant predictor of graft failure during 3.6 years of follow-up (unadjusted HR [95% confidence interval] 1.17 [1.06-1.30], P = .002). Death censored non-technical graft failure occurred in eight (10%) recipients with peri-transplant normoglycaemia, and eight (25%) recipients with peri-transplant hyperglycaemia such that hyperglycaemia predicted a 3-fold higher risk of graft failure [HR (95% confidence interval): 3.0 (1.1-8.0); P = .028]. CONCLUSION Peri-transplant hyperglycaemia is strongly associated with graft loss and could be a valuable tool guiding individualized graft monitoring and treatment. The 5-day peri-transplant glucose AUC provides a robust and responsive framework for comparing graft function.
Collapse
Affiliation(s)
- Iestyn M Shapey
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| | - Zheng L Tan
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| | - Rossella Gioco
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
| | - Hussein Khambalia
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| | - Catherine Fullwood
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
- Department of Research and Innovation (Medical Statistics), Manchester University NHSFT, Manchester, UK
| | - Petros Yiannoullou
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| | - Angela Summers
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
| | - Neil A Hanley
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
| | - Titus Augustine
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| | - Martin K Rutter
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
- Diabetes, Endocrinology and Metabolism Centre, Manchester University NHS Foundation Trust, MAHSC, Manchester, UK
| | - David van Dellen
- Department of Renal and Pancreas Transplantation, Manchester University NHSFT, Manchester, UK
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), The University of Manchester, Manchester, UK
| |
Collapse
|
105
|
The circadian machinery links metabolic disorders and depression: A review of pathways, proteins and potential pharmacological interventions. Life Sci 2020; 265:118809. [PMID: 33249097 DOI: 10.1016/j.lfs.2020.118809] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/11/2020] [Accepted: 11/18/2020] [Indexed: 12/16/2022]
Abstract
Circadian rhythms are responsible for regulating a number of physiological processes. The central oscillator is located within the suprachiasmatic nucleus (SCN) of the hypothalamus and the SCN synchronises the circadian clocks that are found in our peripheral organs through neural and humoral signalling. At the molecular level, biological clocks consist of transcription-translation feedback loops (TTFLs) and these pathways are influenced by transcription factors, post-translational modifications, signalling pathways and epigenetic modifiers. When disruptions occur in the circadian machinery, the activities of the proteins implicated in this network and the expression of core clock or clock-controlled genes (CCGs) can be altered. Circadian misalignment can also arise when there is desychronisation between our internal clocks and environmental stimuli. There is evidence in the literature demonstrating that disturbances in the circadian rhythm contribute to the pathophysiology of several diseases and disorders. This includes the metabolic syndrome and recently, it has been suggested that the 'circadian syndrome' may be a more appropriate term to use to not only describe the cardio-metabolic risk factors but also the associated comorbidities. Here we overview the molecular architecture of circadian clocks in mammals and provide insight into the effects of shift work, exposure to artificial light, food intake and stress on the circadian rhythm. The relationship between circadian rhythms, metabolic disorders and depression is reviewed and this is a topic that requires further investigation. We also describe how particular proteins involved in the TTFLs can be potentially modulated by small molecules, including pharmacological interventions and dietary compounds.
Collapse
|
106
|
In Vivo Studies of Inoculated Plants and In Vitro Studies Utilizing Methanolic Extracts of Endophytic Streptomyces sp. Strain DBT34 Obtained from Mirabilis jalapa L. Exhibit ROS-Scavenging and Other Bioactive Properties. Int J Mol Sci 2020; 21:ijms21197364. [PMID: 33036127 PMCID: PMC7582327 DOI: 10.3390/ijms21197364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/16/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) and other free radicals cause oxidative damage in cells under biotic and abiotic stress. Endophytic microorganisms reside in the internal tissues of plants and contribute to the mitigation of such stresses by the production of antioxidant enzymes and compounds. We hypothesized that the endophytic actinobacterium Streptomyces sp. strain DBT34, which was previously demonstrated to have plant growth-promoting (PGP) and antimicrobial properties, may also have a role in protecting plants against several stresses through the production of antioxidants. The present study was designed to characterize catalase and superoxide dismutase (SOD), two enzymes involved in the detoxification of ROS, in methanolic extracts derived from six endophytic actinobacterial isolates obtained from the traditional medicinal plant Mirabilis jalapa. The results of a preliminary screen indicated that Streptomyces sp. strain DBT34 was the best overall strain and was therefore used in subsequent detailed analyses. A methanolic extract of DBT34 exhibited significant antioxidant potential in 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) assays. The cytotoxicity of DBT34 against liver hepatocellular cells (HepG2) was also determined. Results indicated that methanolic extract of Streptomyces sp. strain DBT34 exhibited significant catalase and SOD-like activity with 158.21 U resulting in a 55.15% reduction in ROS. The IC50 values of a crude methanolic extract of strain DBT34 on DPPH radical scavenging and ABTS radical cation decolorization were 41.5 µg/mL and 47.8 µg/mL, respectively. Volatile compounds (VOC) were also detected in the methanolic extract of Streptomyces sp. strain DBT34 using GC-MS analysis to correlate their presence with bioactive potential. Treatments of rats with DBT34 extract and sitagliptin resulted in a significant (p ≤ 0.001) reduction in total cholesterol, LDL-cholesterol, and VLDL-cholesterol, relative to the vehicle control and a standard diabetic medicine. The pancreatic histoarchitecture of vehicle control rats exhibited a compact volume of isolated clusters of Langerhans cells surrounded by acinies with proper vaculation. An in-vivo study of Streptomyces sp. strain DBT34 on chickpea seedlings revealed an enhancement in its antioxidant potential as denoted by lower IC50 values for DPPH and ABTS radical scavenging activity under greenhouse conditions in relative comparison to control plants. Results of the study indicate that strain DBT34 provides a defense mechanism to its host through the production of antioxidant therapeutic agents that mitigate ROS in hosts subjected to biotic and abiotic stresses.
Collapse
|
107
|
Petramala L, Olmati F, Concistrè A, Russo R, Mezzadri M, Soldini M, De Vincentis G, Iannucci G, De Toma G, Letizia C. Cardiovascular and metabolic risk factors in patients with subclinical Cushing. Endocrine 2020; 70:150-163. [PMID: 32300953 DOI: 10.1007/s12020-020-02297-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/28/2020] [Indexed: 01/13/2023]
Abstract
PURPOSE Adrenal incidentalomas (AI) are discovered after work-up unrelated to adrenal gland diseases; up to 30% of AI show subclinical endogenous cortisol excess (SH), frequently associated to hypertension, obesity, metabolic disorders and increased incidence of cardiovascular events (CVEs). METHODS We analysed 628 AI patients divided into two groups: 471 non-functional adrenal adenoma (NFA) and 157 SH. All patients underwent complete examinations, 24-h ambulatory blood pressure monitoring, biohumoral parameters and vascular damage markers, such as c-IMT and ankle brachial index. After long-term follow-up, we registered newly onset of CVEs such as myocardial infarction (MI), percutaneous stenting and surgical bypass (PTA/CABG), stroke, overall/cardiovascular mortality. Moreover, SH patients underwent to surgical (SSH) or pharmacological treatment (MSH). RESULTS SH patients showed higher prevalence of metabolic syndrome, diabetes mellitus, and previous CVEs respect NFA at baseline. After follow-up MSH group showed higher recurrence of major CV events compared with NFA and SSH (RR 2.27 MSH vs NFA for MI; RR 2.30 MSH vs NFA for PTA/CABG; RR 2.41 MSH vs NFA for stroke). In SSH there was a significant reduction of the number of antihypertensive medications needed to reach target blood pressure levels (2.3 ± 1.0 to 1.5 ± 0.4 drugs). None differences were found in SH patients, distinguished in relation to cortisol plasma levels after dexamethasone suppression test (1.8-5 µg/dL, above 5 µg/dL). CONCLUSIONS SH is linked to relevant cardiovascular and metabolic alterations, leading to worsen clinical outcomes. In eligible patients, adrenalectomy is valid and safe option to treat SH, reducing cardiometabolic abnormalities.
Collapse
Affiliation(s)
- Luigi Petramala
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Federica Olmati
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Antonio Concistrè
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Riccardo Russo
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Martina Mezzadri
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Maurizio Soldini
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Giuseppe De Vincentis
- Department of Radiology, Nuclear Medicine Section, "Sapienza" University of Rome, Rome, Italy
| | - Gino Iannucci
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy
| | - Giorgio De Toma
- "Pietro Valdoni" Surgery Department, "Sapienza" University of Rome, Rome, Italy
| | - Claudio Letizia
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, Rome, Italy.
| |
Collapse
|
108
|
Hepatic miR-192-3p reactivation alleviates steatosis by targeting glucocorticoid receptor. JHEP Rep 2020; 2:100179. [PMID: 33134908 PMCID: PMC7588854 DOI: 10.1016/j.jhepr.2020.100179] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/28/2020] [Accepted: 08/18/2020] [Indexed: 01/08/2023] Open
Abstract
Background & Aims The paradox of hepatic insulin resistance describes the inability for liver to respond to bioenergetics hormones in suppressing gluconeogenesis whilst maintaining lipid synthesis. Here, we report the deficiency of miR-192-3p in the livers of mice with diabetes and its role in alleviating hepatic steatosis. Methods As conventional pre-microRNA (miRNA) stem-loop overexpression only boosts guiding strand (i.e. miR-192-5p) expression, we adopted an artificial AAV(DJ)-directed, RNA Pol III promoter-driven miRNA hairpin construct for star-strand-specific overexpression in the liver. Liver steatosis and insulin resistance markers were evaluated in primary hepatocytes, mice with diabetes, and mice with excessive carbohydrate consumption. Results Functional loss of miR-192-3p in liver exacerbated hepatic micro-vesicular steatosis and insulin resistance in either mice with diabetes or wild-type mice with excessive fructose consumption. Liver-specific overexpression of miR-192-3p effectively halted hepatic steatosis and ameliorated insulin resistance in these mice models. Likewise, hepatocytes overexpressing miR-192-3p exhibited improved lipid accumulation, accompanied with decreases in lipogenesis and lipid-accumulation-related transcripts. Mechanistically, glucocorticoid receptor (GCR, also known as nuclear receptor subfamily 3, group C, member 1 [NR3C1]) was demonstrated to be negatively regulated by miR-192-3p. The effect of miR-192-3p on mitigating micro-vesicular steatosis was ablated by the reactivation of NR3C1. Conclusions The star strand miR-192-3p was an undermined glycerolipid regulator involved in controlling fat accumulation and insulin sensitivity in liver through blockade of hepatic GCR signalling; this miRNA may serve as a potential therapeutic option for the common co-mobility of diabetic mellitus and fatty liver disease. Lay summary The potential regulatory activity of star strand microRNA (miRNA) species has been substantially underestimated. In this study, we investigate the role and mechanism of an overlooked star strand miRNA (miR-192-3p) in regulating hepatic steatosis and insulin signalling in the livers of mice with diabetes and mice under excessive carbohydrate consumption. Liver-specific knockdown of miR-192-3p recapitulated functional loss of the miRNA as in mice with diabetes. This knockdown was characterised by pronounced hepatic micro-vesicular steatosis coupled to insulin resistance. In vivo overexpression of miR-192-3p alleviated hepatic steatosis in mice with diabetes and wild-type mice with excessive fructose consumption. Glucocorticoid receptor (also known as NR3C1) was discovered as the immediate target of miR-192-3p in regulating hepatic lipid turnover and storage.
Collapse
Key Words
- 3′-UTR, 3′-untranslated region
- AAV, adeno-associated virus
- CPT, carnitine palmitoyl transferase
- DEG, differentially expressed gene
- DEX, dexamethasone
- DM, diabetes mellitus
- DNL, de novo lipogenesis
- Diabetes mellitus
- FA, fatty acid
- FAO, fatty acid oxidation
- FASN, fatty acid synthase
- GCR, glucocorticoid receptor
- Glucocorticoid receptor
- HFD, high-fat diet
- HFrD, high-fructose drink
- HOMA-IR, homeostatic model assessment of insulin resistance
- Hepatic steatosis
- High carbohydrate consumption
- MicroRNA
- NAFLD, non-alcoholic fatty liver disease
- NR3C1, nuclear receptor subfamily 3, group C, member 1
- NT, non-targeting
- OA, oleic acid
- OGTT, oral glucose tolerance test
- SCD1, stearoyl-CoA desaturase-1
- T2DM, type 2 diabetes mellitus
- TAG, triacylglyceride/triglyceride
- Transcription repressor
- VAT, visceral adipose tissue
- miRNA, microRNA
- shRNA, short hairpin RNA
Collapse
|
109
|
Dias JP, Joseph JJ, Kluwe B, Zhao S, Shardell M, Seeman T, Needham BL, Wand GS, Kline D, Brock G, Castro-Diehl C, Golden SH. The longitudinal association of changes in diurnal cortisol features with fasting glucose: MESA. Psychoneuroendocrinology 2020; 119:104698. [PMID: 32674946 PMCID: PMC8046490 DOI: 10.1016/j.psyneuen.2020.104698] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/26/2020] [Accepted: 04/21/2020] [Indexed: 12/15/2022]
Abstract
Little is known about the longitudinal association between fasting glucose (FG) and the diurnal cortisol profile among those with normal fasting glucose (NFG), impaired fasting glucose (IFG) and diabetes. To assess the temporality of the relationship between cortisol and glucose, we examined the association of: A) change (Δ) in diurnal cortisol curve features with ΔFG; B) prior annual percent change in FG with diurnal cortisol curve features; and C) baseline cortisol curve features with ΔFG over 6 years among participants with NFG, IFG and diabetes in the Multi-Ethnic Study of Atherosclerosis. The main outcome measures were: A) 6-year ΔFG (n = 512); B) diurnal cortisol curve features (wake-up cortisol levels, cortisol awakening response, total area under the curve, overall decline slope and bedtime cortisol) (n = 1275); and C) 6-year ΔFG (n = 700). After full multivariable adjustment among participants with diabetes, each annual percent change increase in wake-up cortisol, total area under the curve (AUC), and overall decline slope was associated with a significant increase in FG over 6 years in all models (all p < 0.05). A 1% prior annual increase in FG was associated with a 2.8 % lower (-2.8 %; 95 % CI: -5.3 % to -0.4 %) bedtime cortisol among participants with NFG at baseline. A 1 % flatter overall decline slope was associated with a 0.19 % increase in subsequent annual % change in FG over 6 years among participants with diabetes. Among participants with diabetes there was a positive association of change in wake-up cortisol, total AUC and overall decline slope with change in FG. Baseline overall decline slope was positively associated with change in FG among the baseline diabetes group. These results suggest a detrimental role of cortisol contributing to glycemia among individuals with diabetes.
Collapse
Affiliation(s)
- Jenny Pena Dias
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Joshua J. Joseph
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States,Corresponding author at: Department of Internal Medicine, The Ohio State University Wexner Medical Center, 579 McCampbell Hall, 1581 Dodd Drive, Columbus, OH 43210, United States. (J.J. Joseph)
| | - Bjorn Kluwe
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Songzhu Zhao
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States,Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University College of Medicine
| | - Michelle Shardell
- Institute for Genome Sciences, Department of Epidemiology and Public Health, University of Maryland School of Medicine,National Institute on Aging, NIH, Baltimore, MD, United States
| | - Teresa Seeman
- Division of Geriatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Belinda L. Needham
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, United States
| | - Gary S. Wand
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - David Kline
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States,Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University College of Medicine
| | - Guy Brock
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States,Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University College of Medicine
| | - Cecilia Castro-Diehl
- Section of Preventive Medicine and Epidemiology, Boston University, Boston, MA, United States
| | - Sherita Hill Golden
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| |
Collapse
|
110
|
de Guia RM. Stress, glucocorticoid signaling pathway, and metabolic disorders. Diabetes Metab Syndr 2020; 14:1273-1280. [PMID: 32755820 DOI: 10.1016/j.dsx.2020.06.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Glucocorticoids and the GR serve as an essential molecular mediator of stress and different physiologic processes. This review summarizes main findings from studies on the role of the GC/GR signaling in the modulation of genes for nutrient processing by the different organs involved in metabolic diseases. METHODS Descriptive review of relevant papers known to the author was conducted. RESULTS Several high-throughput screenings in the past 15 years have identified potential GR DNA-binding regions in different cell types with genes that are annotated to be important for the control of metabolism. Transcriptional regulation of these GC-responsive genes provides links between the hypothalamic-pituitary-adrenal axis (HPA) and systemic energy homeostasis in both physiological and pathophysiological states. Future studies must reconsider the use of agonist, the utilization of animal models of stress and metabolic disorders, and validation in humans. CONCLUSION This review recapitulates the significant role of the GC/GR signaling in molecular metabolic control and metabolic disorders. Potential future research focus and optimizations have also been identified.
Collapse
Affiliation(s)
- Roldan M de Guia
- Joint Division Molecular Metabolic Control, DKFZ-ZMBH Alliance and Network Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany; Keio Global Research Institute (KGRI) and Department of Pharmacology, Keio University School of Medicine, Tokyo, Japan; Czech Centre for Phenogenomics (CCP), Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic.
| |
Collapse
|
111
|
Hasenmajer V, Sbardella E, Sciarra F, Minnetti M, Isidori AM, Venneri MA. The Immune System in Cushing's Syndrome. Trends Endocrinol Metab 2020; 31:655-669. [PMID: 32387195 DOI: 10.1016/j.tem.2020.04.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/10/2020] [Accepted: 04/13/2020] [Indexed: 12/19/2022]
Abstract
Cushing's syndrome (CS), or chronic hypercortisolism, induces a variety of alterations in the immune system, often leading to severe clinical complications such as sepsis and opportunistic infections. Prolonged exposure to high levels of glucocorticoids (GC), changes in the circadian rhythm, and the comorbidities associated therewith all combine to cause profound changes in the immune profile of affected patients. While traditionally associated with generalized immune suppression, such changes actually comprise a much more complex scenario, sharing traits with chronic inflammatory disorders. Persistently increased levels of interleukin-1 (IL-1), interleukin-6 (IL-6), and tumor necrosis factor alpha (TNFα) and adipose tissue infiltration by immune cells lead to a chronic, nonresolving, inflammatory state. The combination of low-grade inflammation and selectively impaired immune response is thought to play a major role in the pathogenesis of clinical complications of CS, including diabetes, lipodystrophy, visceral adiposity, atherosclerosis, osteoporosis, and cognitive impairment. This dysregulation also explains rebound phenomena when CS is treated, involving new clinical complications sustained by an excessive immune response and autoimmunity. The aim of this review is to summarize the available evidence on the immune system in chronic hypercortisolism, while describing the main mechanisms of immune derangement and their role in the increased mortality and morbidity seen in this complex disease. A better understanding of immune system alterations in CS could help improve risk stratification, offer novel biomarkers, and provide the basis for more tailored therapies and post-remission follow-up.
Collapse
Affiliation(s)
- Valeria Hasenmajer
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Emilia Sbardella
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Francesca Sciarra
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Marianna Minnetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Andrea M Isidori
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
| | - Mary Anna Venneri
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
| |
Collapse
|
112
|
Avinash H, Sudha V, Laxminarayan B, Nandakrishna B, Shastry BA, Asha K, Hande M, Shalini A. The role of osteocalcin in mechanism of Steroid induced diabetes mellitus. Int J Diabetes Dev Ctries 2020. [DOI: 10.1007/s13410-019-00791-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
113
|
Jiang X, Lu N, Zhao H, Yuan H, Xia D, Lei H. The Microbiome-Metabolome Response in the Colon of Piglets Under the Status of Weaning Stress. Front Microbiol 2020; 11:2055. [PMID: 32983040 PMCID: PMC7483555 DOI: 10.3389/fmicb.2020.02055] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
Weaning is stressful for piglets involving nutritional, physiological, and psychological challenges, leading to an increase in the secretion of cortisol, changes in gut microbiome and metabolites, whereas the underlying relationships remain unclear. To elucidate this, 14 Meishan female piglets were divided into the weaning group and the suckling group at the age of 21 days paired by litter and body weight. After 48 h of experiment, weaned piglets had lower body weight, but higher salivary cortisol level than that of their suckling litter mates (P < 0.05). The composition of the colonic bacterial community and metabolites were different between the two groups, and the first predominant genus of the suckling and weaned piglets colonic microbiome were Bacteroides and Prevotellaceae-NK3B31 group respectively. The suckling piglets had higher proportions of phylum Bacteroidetes and Lentisphaerae, and genus Bacteroides and Lactobacillus in the colonic microbial community, but lower abundance of genus Prevotellaceae-NK3B31 group than that of the weaned piglets (P < 0.05). Accordingly, there were 15 colonic metabolites differed between the two groups, in which 2 metabolites (phenylacetic acid and phenol) negatively related to the abundant of Lactobacillus genus (P < 0.05), while 9 metabolites (acetic acid, arabitol, benzoic acid, caprylic acid, cholesterol, dihydrocholesterol, galactinol, glucose phenol, phenylacetic acid, and oxamic acid, glycerol, propionic acid) positively associated with the proportion of Prevotellaceae-NK3B31 group genus (P < 0.05). Furthermore, the salivary cortisol level negatively associated with the abundance of phylum Lentisphaerae, but positively associated with the phylum Bacteroidetes and the genus Prevotellaceae-NK3B31 group (P < 0.05) respectively. These results provide us with new insights into the cause of the gut microbiome and stress, and the contributions of gut microbiome in metabolic and physiological regulation in response to weaning stress.
Collapse
Affiliation(s)
- Xueyuan Jiang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Naisheng Lu
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Haichao Zhao
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China.,Department of Pharmaceutical Microbiology, School of Life Sciences and Technology, China Pharmaceutical University, Nanjing, China
| | - Hao Yuan
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Dong Xia
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Hulong Lei
- Institute of Animal Husbandry and Veterinary Science, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
| |
Collapse
|
114
|
He T, Wang C, Tan Q, Wang Z, Li J, Chen T, Cui K, Wu Y, Sun J, Zheng D, Lv Q, Chen J. Adjuvant chemotherapy-associated lipid changes in breast cancer patients: A real-word retrospective analysis. Medicine (Baltimore) 2020; 99:e21498. [PMID: 32871996 PMCID: PMC7437760 DOI: 10.1097/md.0000000000021498] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Adjuvant chemotherapy may cause alterations in serum lipids in postoperative breast cancer (BC) patients, but the specific alterations caused by different chemotherapy regimens remain unclear. The aim of this study was to investigate the status of serum lipids pre- and post-chemotherapy and to compare the side effects of different chemotherapy regimens on serum lipid.We retrospectively analysed the lipid profiles of 1934 consecutive postoperative BC patients who received one of the following chemotherapy regimens:The levels of triglycerides (TG), total cholesterols (TC), and low-density lipoprotein (LDL-C) were significantly elevated in patients who received chemotherapy regimens above (P < .001). With respect to different chemotherapy regimens, FEC had less side effects on lipid profiles (TG (P = .006), high-density lipoprotein (HDL-C) (P < .001), and LDL-C (P < .001)) than TC regimen and AC-T and EC-T regimen. Also, the incidence of newly diagnosed dyslipidemia after chemotherapy was lower in FEC group than TC group and AC-T and EC-T group (P < .001). Additionally, the magnitude of the alterations in lipid profiles (TG, TC, HDL-C, and LDL-C) was greater in premenopausal patients than that of the postmenopausal patients (P = .004; P < .001; P = .002; P = .003, respectively). Moreover, after adjusting for multiple baseline covariates, anthracycline-plus-taxane-based regimens (AC-T and EC-T) were still statistically associated with a high level of TG (P = .004) and a low level of HDL-C (P = .033) after chemotherapy compared with FEC regimen. Also, body mass index (BMI) > 24 was associated with abnormal lipid profiles (TG, TC, HDL-C, LDL-C) post-chemotherapy compared with BMI ≤ 24 (P < .001; P = .036; P = .012; P = .048, respectively).BC patients receiving chemotherapy may have elevated lipid profiles, and anthracycline-based regimen had less side effects on lipid profiles compared with regimens containing taxane. Therefore, it is necessary to take lipid metabolism into consideration when making chemotherapy decisions and dyslipidemia prevention and corresponding interventions are indispensable during the whole chemotherapy period.
Collapse
Affiliation(s)
- Tao He
- Department of Breast Surgery, West China School of Medicine/West China Hospital, Sichuan University
| | - Chengshi Wang
- Clinical Research Center for Breast Diseases, Laboratory of Molecular Diagnosis of Cancer, and Department of Medical Oncology, West China Hospital, Sichuan University
| | - Qiuwen Tan
- Department of Breast Surgery, West China Hospital, Sichuan University
| | - Zhu Wang
- Laboratory of Molecular Diagnosis of Cancer, West China Hospital, Sichuan University
| | - Jiayuan Li
- West China School of Public Health and West China Fourth Hospital, Sichuan University
| | - Tao Chen
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital of Sichuan University
| | - Kaijun Cui
- Department of Cardiology, West China Hospital of Sichuan University
| | - Yunhao Wu
- West China School of Medicine/West China Hospital, Sichuan University, China
| | - Jiani Sun
- West China School of Medicine/West China Hospital, Sichuan University, China
| | - Danxi Zheng
- West China School of Medicine/West China Hospital, Sichuan University, China
| | - Qing Lv
- Department of Breast Surgery, West China Hospital, Sichuan University
| | - Jie Chen
- Department of Breast Surgery, West China Hospital, Sichuan University
| |
Collapse
|
115
|
Almquist J, Sadiq MW, Eriksson UG, Hegelund Myrbäck T, Prothon S, Leander J. Estimation of Equipotent Doses for Anti-Inflammatory Effects of Prednisolone and AZD9567, an Oral Selective Nonsteroidal Glucocorticoid Receptor Modulator. CPT Pharmacometrics Syst Pharmacol 2020; 9:444-455. [PMID: 32501650 PMCID: PMC7438818 DOI: 10.1002/psp4.12536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 05/05/2020] [Indexed: 01/08/2023] Open
Abstract
AZD9567 is a potent and selective nonsteroidal oral glucocorticoid receptor modulator. It is developed as an anti-inflammatory drug with improved safety profile compared with steroids like prednisolone. Throughout the clinical development of AZD9567, dose selection and data interpretation require a method for determining doses with the same anti-inflammatory effect as prednisolone. Equipotent doses of AZD9567 and prednisolone were defined by the same average inhibition of TNFα release, a biomarker of anti-inflammatory effect, measured in a lipopolysaccharide-stimulated whole blood ex vivo assay. Based on pharmacokinetic-pharmacodynamic models, TNFα dose-response relationships for AZD9567 and prednisolone were established. A comparison of the dose-response curves enabled estimation of an equipotency relationship. Specifically, 20 mg prednisolone was estimated to be equipotent to 40 mg AZD9567 (95% confidence interval: 29-54 mg). Static concentration-response analyses showed that the relative potencies for inhibition of TNFα release of AZD9567 and prednisolone were well aligned with several other pro-inflammatory cytokines.
Collapse
Affiliation(s)
- Joachim Almquist
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| | - Muhammad Waqas Sadiq
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| | - Ulf G. Eriksson
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| | - Tove Hegelund Myrbäck
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| | - Susanne Prothon
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| | - Jacob Leander
- Clinical Pharmacology and Quantitative PharmacologyClinical Pharmacology and Safety SciencesR&D, AstraZenecaGothenburgSweden
| |
Collapse
|
116
|
Smvk P, M N M, D M DY, Kondeti S, Kalashikam RR. Strain specific variation underlines the disparity in stress response of rats to calorie dense diets in the pathophysiology of obesity. Steroids 2020; 160:108653. [PMID: 32407856 DOI: 10.1016/j.steroids.2020.108653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/13/2020] [Accepted: 05/07/2020] [Indexed: 12/30/2022]
Abstract
Obesity is a multifactorial disorder, caused mainly due to lifestyle changes, and increased consumption of calorie dense diets is not just limited to developed countries anymore. Chronic physiological stress and oxidative stress are known to be implicated in the etiology of obesity. However, the role of stress response towards obesity manifestation in genetically different rat strains is poorly understood. In the current study we have used obesity susceptible & resistant rat models to understand the role of both glucocorticoid and oxidativestress in the pathophysiology of obesity. Upon challenge with calorie dense diets, WNIN showed an increased glucocorticoid stress, resulting in increased oxidative stress; whereas such a phenomenon was not noticed in F-344 and SD. However, there was an increase in the circulatory melatonin levels in calorie dense fed groups of both F-344 and SD animals, which might have contributed to reduced oxidative stress. The molecular switch in the activation of melatonin could be possibly attributed to the genetic differences among these strains. It will be interesting to explore other molecular mechanisms for melatonin regulation, albeit increased corticosterone is implicated in the enhanced production of melatonin.
Collapse
Affiliation(s)
- Prasad Smvk
- Laboratory of Molecular Genetics, National Institute of Nutrition, Hyderabad 500007, Telangana, India
| | - Muralidhar M N
- Laboratory of Molecular Genetics, National Institute of Nutrition, Hyderabad 500007, Telangana, India
| | - Dinesh Yadav D M
- Laboratory of Molecular Genetics, National Institute of Nutrition, Hyderabad 500007, Telangana, India
| | - Suresh Kondeti
- Laboratory of Molecular Genetics, National Institute of Nutrition, Hyderabad 500007, Telangana, India
| | - Rajender Rao Kalashikam
- Laboratory of Molecular Genetics, National Institute of Nutrition, Hyderabad 500007, Telangana, India.
| |
Collapse
|
117
|
van der Kooij MA. The impact of chronic stress on energy metabolism. Mol Cell Neurosci 2020; 107:103525. [PMID: 32629109 DOI: 10.1016/j.mcn.2020.103525] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/02/2020] [Accepted: 06/16/2020] [Indexed: 01/21/2023] Open
Abstract
The brain is exceptionally demanding in terms of energy metabolism. Approximately 20% of the calories consumed are devoted to our cerebral faculties, with the lion's share provided in the form of glucose. The brain's stringent energy dependency requires a high degree of harmonization between the elements responsible for supplying- and metabolizing energetic substrates. However, chronic stress may jeopardize this homeostatic energy balance by disruption of critical metabolic processes. In agreement, stress-related mental disorders have been linked with perturbations in energy metabolism. Prominent stress-induced metabolic alterations include the actions of hormones, glucose uptake and mitochondrial adjustments. Importantly, fundamental stress-responsive metabolic adjustments in humans and animal models bear a striking resemblance. Here, an overview is provided of key findings, demonstrating the pervasive impact of chronic stress on energy metabolism. Furthermore, I argue that medications, aimed primarily at restoring metabolic homeostasis, may constitute a novel approach to treat mental disorders.
Collapse
|
118
|
Ioakim KJ, Sydney GI, Paschou SA. Glucose metabolism disorders in patients with adrenal gland disorders: pathophysiology and management. Hormones (Athens) 2020; 19:135-143. [PMID: 31721134 DOI: 10.1007/s42000-019-00147-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/17/2019] [Indexed: 12/14/2022]
Abstract
The aim of this review is to explore and discuss disorders of glucose metabolism that can arise in individuals with adrenal gland disorders, as well as to enumerate the available therapeutic treatments for these while considering their benefits and drawbacks. Hyperfunctioning adrenal glands, as in hypercortisolism, hyperaldosteronism, and malignancy, or hypofunctioning of adrenal glands, as in adrenal insufficiency, can lead to carbohydrate metabolism dysregulation with subsequent glucometabolic repercussions, either hyperglycemia or hypoglycemia. Glycemic disorders further affect patients' quality of life and represent a therapeutic dilemma for physicians. Current management strategies for glycemic dysregulation in individuals with adrenal gland disorders are fighting the underlying causes, as well as utilizing antidiabetic therapies that aid in maintaining euglycemia. Further research focused on discovering drug preparations of greater accuracy and effectiveness tailored to patients with adrenal problems as well as studies investigating optimal lifestyle management models for these individuals will assist towards achieving optimal regulation of glucose metabolism.
Collapse
Affiliation(s)
| | - Guy I Sydney
- School of Medicine, European University Cyprus, Nicosia, Cyprus
| | - Stavroula A Paschou
- School of Medicine, European University Cyprus, Nicosia, Cyprus.
- Division of Endocrinology and Diabetes, "Aghia Sophia" Hospital, Medical School, National and Kapodistrian University of Athens, Thivon and Papadiamantopoulou, 11527, Athens, Greece.
| |
Collapse
|
119
|
Running wheel access fails to resolve impaired sustainable health in mice feeding a high fat sucrose diet. Aging (Albany NY) 2020; 11:1564-1579. [PMID: 30860981 PMCID: PMC6428087 DOI: 10.18632/aging.101857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 03/06/2019] [Indexed: 12/16/2022]
Abstract
Diet and physical activity are thought to affect sustainable metabolic health and survival. To improve understanding, we studied survival of mice feeding a low-fat (LF) or high-saturated fat/high sugar (HFS) diet, each with or without free running wheel (RW) access. Additionally several endocrine and metabolic health indices were assessed at 6, 12, 18 and 24 months of age. As expected, HFS feeding left-shifted survival curve of mice compared to LF feeding, and this was associated with increased energy intake and increased (visceral/total) adiposity, liver triglycerides, and increased plasma cholesterol, corticosterone, HOMA-IR, and lowered adiponectin levels. Several of these health parameters improved (transiently) by RW access in HFS and LF fed mice (i.e., HOMA-IR, plasma corticosterone), others however deteriorated (transiently) by RW access only in HFS-fed mice (i.e., body adiposity, plasma resistin, and free cholesterol levels). Apart from these multiple and sometimes diverging health effects of RW access, RW access did not affect survival curves. Important to note, voluntary RW activity declined with age, but this effect was most pronounced in the HFS fed mice. These results thus challenge the hypothesis that voluntary wheel running can counteract HFS-induced deterioration of survival and metabolic health.
Collapse
|
120
|
Sex-dependent metabolic effects of pregestational exercise on prenatally stressed mice. J Dev Orig Health Dis 2020; 12:271-279. [PMID: 32406352 DOI: 10.1017/s2040174420000343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Stressful events during the prenatal period have been related to hyperactive hypothalamic-pituitary-adrenal (HPA) axis responses as well as metabolic changes in adult life. Moreover, regular exercise may contribute to the improvement of the symptoms associated with stress and stress-related chronic diseases. Therefore, this study aims to investigate the effects of exercise, before the gestation period, on the metabolic changes induced by prenatal stress in adult mice. Female Balb/c mice were divided into three groups: control (CON), prenatal restraint stress (PNS) and exercise before the gestational period plus PNS (EX + PNS). When adults, the plasmatic biochemical analysis, oxidative stress, gene expression of metabolic-related receptors and sex differences were assessed in the offspring. Prenatal stress decreased neonatal and adult body weight when compared to the pregestational exercise group. Moreover, prenatal stress was associated with reduced body weight in adult males. PNS and EX + PNS females showed decreased hepatic catalase. Pregestational exercise prevented the stress-induced cholesterol increase in females but did not prevent the liver mRNA expression reduction on the peroxisome proliferator-activated receptors (PPARs) α and γ in PNS females. Conversely, PNS and EX + PNS males showed an increased PPARα mRNA expression. In conclusion, pregestational exercise prevented some effects of prenatal stress on metabolic markers in a sex-specific manner.
Collapse
|
121
|
Rahimi L, Rajpal A, Ismail-Beigi F. Glucocorticoid-Induced Fatty Liver Disease. Diabetes Metab Syndr Obes 2020; 13:1133-1145. [PMID: 32368109 PMCID: PMC7171875 DOI: 10.2147/dmso.s247379] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/27/2020] [Indexed: 01/08/2023] Open
Abstract
Glucocorticoids (GCs) are commonly used at high doses and for prolonged periods (weeks to months) in the treatment of a variety of diseases. Among the many side effects are increased insulin resistance with disturbances in glucose/insulin homeostasis and increased deposition of lipids (mostly triglycerides) in the liver. Here, we review the metabolic pathways of lipid deposition and removal from the liver that become altered by excess glucocorticoids. Pathways of lipid deposition stimulated by excess glucocorticoids include 1) increase in appetite and high caloric intake; 2) increased blood glucose levels due to GC-induced stimulation of gluconeogenesis; 3) stimulation of de novo lipogenesis that is augmented by the high glucose and insulin levels and by GC itself; and 4) increased release of free fatty acids from adipose stores and stimulation of their uptake by the liver. Pathways that decrease hepatic lipids affected by glucocorticoids include a modest stimulation of very-low-density lipoprotein synthesis and secretion into the circulation and inhibition of β-oxidation of fatty acids. Role of 11β-hydroxysteroid dehydrogenases-1 and -2 and the reversible conversion of cortisol to cortisone on intracellular levels of cortisol is examined. In addition, GC control of osteocalcin expression and the effect of this bone-derived hormone in increasing insulin sensitivity are discussed. Finally, research focused on gaining a better understanding of the dose and duration of treatment with glucocorticoids, which leads to increased triglyceride deposition in the liver, and the reversibility of the condition is highlighted.
Collapse
Affiliation(s)
- Leili Rahimi
- Department of Medicine, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Aman Rajpal
- Department of Medicine, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
- Cleveland VA Medical Center, Cleveland, OH, USA
| | - Faramarz Ismail-Beigi
- Department of Medicine, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
- Cleveland VA Medical Center, Cleveland, OH, USA
| |
Collapse
|
122
|
Kračun D, Klop M, Knirsch A, Petry A, Kanchev I, Chalupsky K, Wolf CM, Görlach A. NADPH oxidases and HIF1 promote cardiac dysfunction and pulmonary hypertension in response to glucocorticoid excess. Redox Biol 2020; 34:101536. [PMID: 32413743 PMCID: PMC7226895 DOI: 10.1016/j.redox.2020.101536] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/31/2020] [Accepted: 04/04/2020] [Indexed: 12/22/2022] Open
Abstract
Cardiovascular side effects are frequent problems accompanying systemic glucocorticoid therapy, although the underlying mechanisms are not fully resolved. Reactive oxygen species (ROS) have been shown to promote various cardiovascular diseases although the link between glucocorticoid and ROS signaling has been controversial. As the family of NADPH oxidases has been identified as important source of ROS in the cardiovascular system we investigated the role of NADPH oxidases in response to the synthetic glucocorticoid dexamethasone in the cardiovascular system in vitro and in vivo in mice lacking functional NADPH oxidases due to a mutation in the gene coding for the essential NADPH oxidase subunit p22phox. We show that dexamethasone induced NADPH oxidase-dependent ROS generation, leading to vascular proliferation and angiogenesis due to activation of the transcription factor hypoxia-inducible factor-1 (HIF1). Chronic treatment of mice with low doses of dexamethasone resulted in the development of systemic hypertension, cardiac hypertrophy and left ventricular dysfunction, as well as in pulmonary hypertension and pulmonary vascular remodeling. In contrast, mice deficient in p22phox-dependent NADPH oxidases were protected against these cardiovascular side effects. Mechanistically, dexamethasone failed to upregulate HIF1α levels in these mice, while vascular HIF1α deficiency prevented pulmonary vascular remodeling. Thus, p22phox-dependent NADPH oxidases and activation of the HIF pathway are critical elements in dexamethasone-induced cardiovascular pathologies and might provide interesting targets to limit cardiovascular side effects in patients on chronic glucocorticoid therapy.
Collapse
Affiliation(s)
- Damir Kračun
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Mathieu Klop
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Anna Knirsch
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Andreas Petry
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Ivan Kanchev
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany
| | - Karel Chalupsky
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany; Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the ASCR, v. v. i., Prague, Czech Republic
| | - Cordula M Wolf
- Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, 80636, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
| |
Collapse
|
123
|
Araujo JEDS, Miguel-dos-Santos R, Macedo FN, Cunha PS, Fontes MT, Murata GM, Lauton-Santos S, Santana-Filho VJ, Silva AMDO, Antoniolli AR, Curi R, Quintans JDSS, Barreto RDSS, Santos MRV, Quintans-Junior LJ, Barreto AS. Effects of high doses of glucocorticoids on insulin-mediated vasodilation in the mesenteric artery of rats. PLoS One 2020; 15:e0230514. [PMID: 32187237 PMCID: PMC7080254 DOI: 10.1371/journal.pone.0230514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 03/02/2020] [Indexed: 01/11/2023] Open
Abstract
Several pathological conditions predict the use of glucocorticoids for the management of the inflammatory response; however, chronic or high dose glucocorticoid treatment is associated with hyperglycemia, hyperlipidemia, and insulin resistance and can be considered a risk factor for cardiovascular disease. Therefore, we investigated the mechanisms involved in the vascular responsiveness and inflammatory profile of mesenteric arteries of rats treated with high doses of glucocorticoids. Wistar rats were divided into a control (CO) group and a dexamethasone (DEX) group, that received dexamethasone for 7 days (2mg/kg/day, i.p.). Blood samples were used to assess the lipid profile and insulin tolerance. Vascular reactivity to Phenylephrine (Phe) and insulin, and O2•-production were evaluated. The intracellular insulin signaling pathway PI3K/AKT/eNOS and MAPK/ET-1 were investigated. Regarding the vascular inflammatory profile, TNF-α, IL-6, IL-1β and IL-18 were assessed. Dexamethasone-treated rats had decreased insulin tolerance test and endothelium-dependent vasodilation induced by insulin. eNOS inhibition caused vasoconstriction in the DEX group, which was abolished by the ET-A antagonist. Insulin-mediated relaxation in the DEX group was restored in the presence of the O2.- scavenger TIRON. Nevertheless, in the DEX group there was an increase in Phe-induced vasoconstriction. In addition, the intracellular insulin signaling pathway PI3K/AKT/eNOS was impaired, decreasing NO bioavailability. Regarding superoxide anion generation, there was an increase in the DEX group, and all measured proinflammatory cytokines were also augmented in the DEX group. In addition, the DEX-group presented an increase in low-density lipoprotein cholesterol (LDL-c) and total cholesterol (TC) and reduced high-density lipoprotein cholesterol (HDL-c) levels. In summary, treatment with high doses of dexamethasone promoted changes in insulin-induced vasodilation, through the reduction of NO bioavailability and an increase in vasoconstriction via ET-1 associated with generation of O2•- and proinflammatory cytokines.
Collapse
Affiliation(s)
- João Eliakim dos S. Araujo
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Rodrigo Miguel-dos-Santos
- Laboratory of Cardiovascular Biology and Oxidative Stress, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | | | - Patrícia S. Cunha
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Milene Tavares Fontes
- Vascular Physiology Laboratory, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gilson Masahiro Murata
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sandra Lauton-Santos
- Laboratory of Cardiovascular Biology and Oxidative Stress, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Valter J. Santana-Filho
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Ana Mara de O. Silva
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Angelo Roberto Antoniolli
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Rui Curi
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jullyana de S. S. Quintans
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Rosana de S. S. Barreto
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Marcio R. V. Santos
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - Lucindo J. Quintans-Junior
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| | - André S. Barreto
- Laboratory of Cardiovascular Pharmacology, Department of Physiology, Federal University of Sergipe, Sao Cristovao, Sergipe, Brazil
| |
Collapse
|
124
|
Kleinridders A, Pothos EN. Impact of Brain Insulin Signaling on Dopamine Function, Food Intake, Reward, and Emotional Behavior. Curr Nutr Rep 2020; 8:83-91. [PMID: 31001792 DOI: 10.1007/s13668-019-0276-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Dietary obesity is primarily attributed to an imbalance between food intake and energy expenditure. Adherence to lifestyle interventions reducing weight is typically low. As a result, obesity becomes a chronic state with increased co-morbidities such as insulin resistance and diabetes. We review the effects of brain insulin action and dopaminergic signal transmission on food intake, reward, and mood as well as potential modulations of these systems to counteract the obesity epidemic. RECENT FINDINGS Central insulin and dopamine action are interlinked and impact on food intake, reward, and mood. Brain insulin resistance causes hyperphagia, anxiety, and depressive-like behavior and compromises the dopaminergic system. Such effects can induce reduced compliance to medical treatment. Insulin receptor sensitization and dopamine receptor agonists show attenuation of obesity and improvement of mental health in rodents and humans. Modulating brain insulin and dopamine signaling in obese patients can potentially improve therapeutic outcomes.
Collapse
Affiliation(s)
- André Kleinridders
- Central Regulation of Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany. .,German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764, Neuherberg, Germany.
| | - Emmanuel N Pothos
- Program in Pharmacology and Experimental Therapeutics and Pharmacology and Drug Development, Sackler School of Graduate Biomedical Sciences and Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA.
| |
Collapse
|
125
|
Xie X, Xiao Q, Xiong Z, Yu C, Zhou J, Fu Z. Crocin-I ameliorates the disruption of lipid metabolism and dysbiosis of the gut microbiota induced by chronic corticosterone in mice. Food Funct 2020; 10:6779-6791. [PMID: 31576875 DOI: 10.1039/c9fo01533g] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Glucocorticoids (GCs) are widely used as anti-inflammatory and immunosuppressive drugs. However, chronic treatment with GCs in clinical settings has a series of side effects, such as metabolic disorders, gut microbiota dysbiosis and neurological impairment. Therefore, searching for a functional substance that can alleviate these side effects is greatly meaningful to clinical patients. Crocin is the main active ingredient of saffron, which has been reported to have numerous pharmacological activities. However, the action of crocin-I, one major member of the crocin family, on the physiological mediation in the individuals receiving GC treatment remains unclear. In this study, we aimed to evaluate the efficacy of crocin-I on lipid metabolism and the gut microbiota in a mouse model of chronic corticosterone (CORT) treatment. Our findings showed that crocin-I reduced the levels of triglycerides and total cholesterol and the ratio of low density lipoprotein to high density lipoprotein in the serum of CORT-treated mice. In addition, transcriptome analysis revealed that crocin-I was effective in mediating the amelioration of lipid metabolism, mainly in fatty acid metabolism and steroid biosynthesis in CORT-treated mice. Moreover, metabolome analysis demonstrated that crocin-I could restore the disturbed metabolites in the liver of CORT-treated mice, most of which are long-chain fatty acids. Furthermore, high-throughput sequencing of 16s rRNA revealed that crocin-I could mitigate the dysbiosis of the gut microbiota caused by CORT at a dose of 40 mg kg-1, by resulting in a significant increase in the alpha diversity of the microbes in the cecal contents and a significant reduction in the abundance of Firmicutes, whereas by increasing the abundance of Bacteroidetes. These results indicated that oral administration of crocin-I could modify the composition of the gut microbiota and alleviate hepatic lipid disorder in mice treated with a high dose of GCs.
Collapse
Affiliation(s)
- Xiaoxian Xie
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | | | | | | | | | | |
Collapse
|
126
|
Joseph S, Alava B, Antolic A, Richards EM, Wood CE, Keller-Wood M. Fetal ovine skeletal and cardiac muscle transcriptomics are differentially altered by increased maternal cortisol during gestation. Physiol Genomics 2020; 52:178-190. [PMID: 32116114 DOI: 10.1152/physiolgenomics.00096.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
We have previously found that in utero exposure to excess maternal cortisol (1 mg/kg/day) in late gestation increases the incidence of stillbirth during labor and produces fetal bradycardia at birth. In the interventricular septum, mitochondrial DNA (mt-DNA) was decreased, and transcriptomics and metabolomics were consistent with altered mitochondrial metabolism. The present study uses transcriptomics to model effects of increased maternal cortisol on fetal biceps femoris. Transcriptomic modeling revealed that pathways related to mitochondrial metabolism were downregulated, whereas pathways for regulation of reactive oxygen species and activation of the apoptotic cascade were upregulated. Mt-DNA and the protein levels of cytochrome C were significantly decreased in the biceps femoris. RT-PCR validation of the pathways confirmed a significant decrease in SLC2A4 mRNA levels and a significant increase in PDK4, TXNIP, ANGPTL4 mRNA levels, suggesting that insulin sensitivity of the biceps femoris muscle may be reduced in cortisol offspring. We also tested for changes in gene expression in diaphragm by rt-PCR. PDK4, TXNIP, and ANGPTL4 mRNA were also increased in the diaphragm, but SLC2A4, cytochrome C protein, and mt-DNA were unchanged. Comparison of the change in gene expression in biceps femoris to that in cardiac interventricular septum and left ventricle showed few common genes and little overlap in specific metabolic or signaling pathways, despite reduction in mt-DNA in both heart and biceps femoris. Our results suggest that glucocorticoid exposure alters expression of nuclear genes important to mitochondrial activity and oxidative stress in both cardiac and skeletal muscle tissues, but that these effects are tissue-specific.
Collapse
Affiliation(s)
- Serene Joseph
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida
| | - Bryan Alava
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida
| | - Andrew Antolic
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida
| | - Elaine M Richards
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida.,Department of Pharmacodynamics, Physiology and Functional Genomics, University of Florida, Gainesville, Florida
| | - Charles E Wood
- Department of Pharmacodynamics, Physiology and Functional Genomics, University of Florida, Gainesville, Florida.,Donald H Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida
| | - Maureen Keller-Wood
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida.,Donald H Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida
| |
Collapse
|
127
|
Petimar J, Rifas-Shiman SL, Hivert MF, Fleisch AF, Tiemeier H, Oken E. [Not Available]. Pediatr Obes 2020; 15:e12592. [PMID: 31689001 PMCID: PMC7012732 DOI: 10.1111/ijpo.12592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/11/2019] [Indexed: 01/13/2023]
Abstract
OBJECTIVE: To examine associations of hair cortisol concentration (HCC) in mid-childhood and change in HCC from mid-childhood to early adolescence (ΔHCC) with early adolescent adiposity and cardiometabolic biomarker measures. METHODS: In Project Viva, a pre-birth cohort of mothers and children, we measured HCC in 599 white children in mid-childhood and in 426 of these participants in early adolescence. We used multivariable linear regression to examine associations of mid-childhood HCC and ΔHCC with BMI-for-age-and-sex z-score, waist circumference, waist-height ratio, dual X-ray absorptiometry total and trunk fat mass, a metabolic risk z-score, adiponectin, HOMA-IR, high-density lipoprotein, C-reactive protein, interleukin-6, leptin, and systolic blood pressure. RESULTS: Over a mean (SD) follow-up of 5.2 (0.8) years, we did not find associations of mid-childhood HCC with BMI-for-age-and-sex z-score (β=0.00 per 1-interquartile range of HCC, 95% confidence interval [CI]: −0.08, 0.07), waist circumference (β=−0.04cm, 95% CI: −0.83, 0.74), metabolic risk z-score (β=0.04, 95% CI: −0.03, 0.11), or other cardiometabolic measures except for an increase in log-transformed HOMA-IR (β=0.10, 95% CI: 0.04, 0.17). ΔHCC was not associated with any outcome measures. CONCLUSIONS: We found that mid-childhood HCC was not associated with early adolescent adiposity or cardiometabolic biomarkers except for a slight increase in HOMA-IR.
Collapse
Affiliation(s)
- Joshua Petimar
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA,Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Sheryl L. Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Marie-France Hivert
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA,Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Abby F. Fleisch
- Pediatric Endocrinology and Diabetes, Maine Medical Center, Portland, ME,Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA
| | - Henning Tiemeier
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA,Department of Child and Adolescent Psychiatry, Erasmus Medical Center-Sophia Children’s Hospital, Rotterdam, Netherlands
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA,Department of Nutrition, Harvard T.H. Chan School of Public Health, USA
| |
Collapse
|
128
|
Damián-Medina K, Salinas-Moreno Y, Milenkovic D, Figueroa-Yáñez L, Marino-Marmolejo E, Higuera-Ciapara I, Vallejo-Cardona A, Lugo-Cervantes E. In silico analysis of antidiabetic potential of phenolic compounds from blue corn ( Zea mays L.) and black bean ( Phaseolus vulgaris L.). Heliyon 2020; 6:e03632. [PMID: 32258479 PMCID: PMC7110303 DOI: 10.1016/j.heliyon.2020.e03632] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/20/2020] [Accepted: 03/17/2020] [Indexed: 12/26/2022] Open
Abstract
The growing interest in bioactive compounds, especially in polyphenols, is due to their abundance in the human diet and potentially positive effects on health. The consumption of polyphenols has been shown to possess anti-diabetic properties by preventing insulin resistance or insulin secretion through different signaling pathways, this effect is associated with their capacity to exert genomic modulations. Several studies have suggested that polyphenols could also bind to cellular proteins and modulate their activity, however, the mechanisms of action underlying their beneficial effects are complex and are not fully understood. The aim of this work was to characterize phenolic compounds present in blue corn and black bean extracts as well as identify their potential interactions with target proteins involved in diabetes pathogenesis using in silico approach. Total polyphenols content of both blue corn and black beans was identified using UPLC-ESI/qTOF/MS and quantified by colorimetric assays. In this work we identified twenty-eight phenolic compounds in the extracts, mainly anthocyanins, flavonols, hydroxycinamic acids, dihydroxybenzoic acids, flavones, isoflavones, and flavanols. Interactome of these compounds with thirteen target proteins involved in type 2 diabetes mellitus was performed in-silico. In total, 312 bioactive compounds/protein interaction analyses were acquired. Molecular docking results highlighted that nine of the top ten interactions correspond to anthocyanins, cyanidin 3-glucoside with 11β-HS, GFAT, PPARG; delphinidin 3-glucoside with 11β-HS, GFAT, PTP and RTKs; and petunidin 3-glucoside with 11β-HS and PTP. These proteins are involved in mechanisms regulating functions such as inflammation, insulin resistance, oxidative stress, glucose and lipid metabolism. In conclusion, this work provides a prediction of the potential molecular mechanism of black bean and blue corn polyphenols, specifically anthocyanins and could constitute new pathways by which compounds exert their antidiabetic benefits.
Collapse
Affiliation(s)
- K. Damián-Medina
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| | - Y. Salinas-Moreno
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Tepatitlán 47600, Jalisco, Mexico
| | - D. Milenkovic
- Department of Internal Medicine, UC Davis School of Medicine, University of California, Davis, USA
- Université Clermont Auvergne, INRAE, UNH, F-63000 Clermont–Ferrand, France
| | - L. Figueroa-Yáñez
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| | - E. Marino-Marmolejo
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| | - I. Higuera-Ciapara
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| | - A. Vallejo-Cardona
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| | - E. Lugo-Cervantes
- Center for Research and Assistance in Technology and Design of the State of Jalisco, A.C. (CIATEJ), Food Technology Unit, 45019 Jalisco, Mexico
| |
Collapse
|
129
|
Damián-Medina K, Salinas-Moreno Y, Milenkovic D, Figueroa-Yáñez L, Marino-Marmolejo E, Higuera-Ciapara I, Vallejo-Cardona A, Lugo-Cervantes E. In silico analysis of antidiabetic potential of phenolic compounds from blue corn (Zea mays L.) and black bean (Phaseolus vulgaris L.). Heliyon 2020; 6:e03632. [DOI: https:/doi.org/10.1016/j.heliyon.2020.e03632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024] Open
|
130
|
Li Q, Zhou J, Zhang D, Zhang X, Xu Z, Wu D. Metabolic Profiling Reveals an Abnormal Pattern of Serum Fatty Acids in MRL/lpr Mice Under Treatment With Prednisone. Front Pharmacol 2020; 11:115. [PMID: 32158392 PMCID: PMC7052041 DOI: 10.3389/fphar.2020.00115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022] Open
Abstract
Glucocorticoids (GCs) are commonly used to treat systemic lupus erythematosus (SLE). Unfortunately, excessive GCs can induce many side effects associated with disordered fatty acid (FA) metabolism. Although an increased level of total FA has been found after GCs treatment, it is not clear whether all FA species increased or only certain FA species were altered. A gas chromatography–mass spectrometry-based FA profiling approach was performed to reveal the alterations of FA species in SLE model mice (MRL/lpr) after treatment with 5 mg/kg of prednisone. The study showed a distinct FA profile in MRL/lpr mice compared to the controls, mainly manifested by elevated polyunsaturated FAs (arachidonate, docosahexaenoate, etc.), which are related to the inflammatory state; and altered (product FA/precursor FA) ratios representing the estimated activities of FA desaturase and elongase (higher activities of multiple elongases, △4 desaturase, △5 desaturase, △6 desaturase, and lower activity of △8 desaturase). Treatment with 5 mg/kg of prednisone decreased the total level of n-6 polyunsaturated FA in MRL/lpr mice; in particular, the level of arachidonate and estimated activity of △5 desaturase were reduced to the control level. Moreover, prednisone induced additional perturbations in FAs, including not only saturated FAs, but also monounsaturated FAs and n-3 polyunsaturated FAs, indicating that there was a strong effect of prednisone on FA metabolism. These results may be valuable for further studies of the side effects of GCs treatment.
Collapse
Affiliation(s)
- Qianqian Li
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jia Zhou
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Dingyi Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiafeng Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhenghao Xu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Dehong Wu
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| |
Collapse
|
131
|
Lindsay KL, Buss C, Wadhwa PD, Entringer S. The Effect of a Maternal Mediterranean Diet in Pregnancy on Insulin Resistance is Moderated by Maternal Negative Affect. Nutrients 2020; 12:nu12020420. [PMID: 32041106 PMCID: PMC7071160 DOI: 10.3390/nu12020420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/26/2020] [Accepted: 02/05/2020] [Indexed: 02/06/2023] Open
Abstract
There is inconsistent evidence that healthy dietary interventions can effectively mitigate the risk of adverse outcomes associated with elevated insulin resistance in pregnancy, suggesting that other moderating factors may be at play. Maternal psychological state is an important factor to consider in this regard, because stress/mood state can directly influence glycemia and a bidirectional relationship may exist between nutrition and psychological state. The objective of this study was to examine the interaction between maternal negative affect and diet quality on third trimester insulin resistance. We conducted a prospective longitudinal study of N = 203 women with assessments in early and mid-pregnancy, which included an ecological momentary assessment of maternal psychological state, from which a negative affect score (NAS) was derived, and 24-h dietary recalls, from which the Mediterranean Diet Score (MDS) was computed. The homeostasis model assessment of insulin resistance (HOMA-IR) was computed from third trimester fasting plasma glucose and insulin values. Early pregnancy MDS was inversely associated with the HOMA-IR, but this did not maintain significance after adjusting for covariates. There was a significant effect of the mid-pregnancy MDS*NAS interaction term with the HOMA-IR in the adjusted model, such that a higher negative affect was found to override the beneficial effects of a Mediterranean diet on insulin resistance. These results highlight the need to consider nutrition and affective state concurrently in the context of gestational insulin resistance.
Collapse
Affiliation(s)
- Karen L. Lindsay
- Departments of Pediatrics, University of California, Irvine, CA 92697, USA
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Correspondence: ; Tel.: +1-7-144-568-401
| | - Claudia Buss
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
| | - Pathik D. Wadhwa
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Departments of Psychiatry & Human Behavior, and Obstetrics & Gynecology, University of California, Irvine, CA 92697, USA
| | - Sonja Entringer
- UC Irvine Development, Health and Disease Research Program, University of California, Irvine, CA 92697, USA; (C.B.); (P.D.W.); (S.E.)
- Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, 10117 Berlin, Germany
| |
Collapse
|
132
|
Yang W, Li X, Zhong J, Mei X, Liu H, Yang L, Lu L, Hu H. Intratympanic versus intravenous corticosteroid treatment for sudden sensorineural hearing loss in diabetic patients: proposed study protocol for a prospective, randomized superiority trial. Trials 2020; 21:135. [PMID: 32014060 PMCID: PMC6998247 DOI: 10.1186/s13063-020-4077-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/15/2020] [Indexed: 11/16/2022] Open
Abstract
Background Diabetes mellitus is associated with risk of sudden sensorineural hearing loss (SSNHL). Systemic and intratympanic corticosteroids are the two primary treatments for SSNHL in patients with diabetes mellitus. The benefit of intratympanic compared to systemic treatment is the reduced systemic steroid exposure and associated systemic adverse effects. Intratympanic corticosteroid administration may have potential benefits over standard systemic therapies. Methods/design The proposed study is a prospective, randomized superiority trial. A total of 96 patients (48 in each group) will be randomized into the experimental or control group. Patients in the experimental group will receive four 1-mL doses of 40 mg/mL of methylprednisolone over a 1-week period, with a dose administered every 2 days via tympanic membrane injection into the middle ear. The control group will be administered intravenous methylprednisolone (1 mg/kg/day, maximal dose 60 mg/day) for 5 days. The primary outcome for this study is the change in hearing threshold from the first audiogram to the 30-day follow-up audiogram. Secondary outcome measures will include pure-tone average (PTA) at 90-day follow up, visual analog tinnitus scale, visual analog vertigo scale, visual analog aural fullness scale, fasting blood glucose and 2-h postprandial blood glucose during treatment, and the change in glycosylated hemoglobin (HbA1C) levels. Vital signs and otological physical examination will be performed at each follow-up visit. Discussion The efficacy and safety of intratympanic methylprednisolone compared to intravenous methylprednisolone will be investigated in patients with diabetes mellitus and SSNHL. This trial may provide strong evidence for the efficacy and safety of intratympanic corticosteroid treatment and important clinical information for the treatment of patients with diabetes mellitus and SSNHL. Trial registration ChiCTR, ChiCTR1800015954. Registered on 2 May 2018, Retrospectively registered, http://www.chictr.org.cn/showproj.aspx?proj=25326.
Collapse
Affiliation(s)
- Weiqiang Yang
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China.,Hearing and Balance Function Medical Engineering Laboratory, Shenzhen, China
| | - Xiaoling Li
- The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Jiatao Zhong
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China.,Hearing and Balance Function Medical Engineering Laboratory, Shenzhen, China
| | - Xueshuang Mei
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China.,Hearing and Balance Function Medical Engineering Laboratory, Shenzhen, China
| | - Hongyu Liu
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China.,Hearing and Balance Function Medical Engineering Laboratory, Shenzhen, China
| | - Le Yang
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Liming Lu
- Clinical Research and Data Centre, South China Research Centre for Acupuncture and Moxibustion, Medical College of Acu-Moxi and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Hongyi Hu
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen, China. .,Hearing and Balance Function Medical Engineering Laboratory, Shenzhen, China.
| |
Collapse
|
133
|
Lewis T, Zeisig E, Gaida JE. Does glucocorticoid exposure explain the association between metabolic dysfunction and tendinopathy? Endocr Connect 2020; 9:EC-19-0555.R1. [PMID: 31967969 PMCID: PMC7040857 DOI: 10.1530/ec-19-0555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 01/21/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND While metabolic health is acknowledged to affect connective tissue structure and function, the mechanisms are unclear. Glucocorticoids are present in almost every cell type throughout the body and control key physiological processes such as energy homeostasis, stress response, inflammatory and immune processes, and cardiovascular function. Glucocorticoid excess manifests as visceral adiposity, dyslipidaemia, insulin resistance, and type 2 diabetes. As these metabolic states are also associated with tendinopathy and tendon rupture, it may be that glucocorticoids excess is the link between metabolic health and tendinopathy. OBJECTIVE To synthesise current knowledge linking glucocorticoids exposure to tendon structure and function. METHODS Narrative literature review. RESULTS We provide an overview of endogenous glucocorticoid production, regulation, and signalling. Next we review the impact that oral glucocorticoid has on risk of tendon rupture and the effect that injected glucocorticoid has on resolution of symptoms. Then we highlight the clinical and mechanistic overlap between tendinopathy and glucocorticoid excess in the areas of visceral adiposity, dyslipidaemia, insulin resistance and type 2 diabetes. In these areas, we highlight the role of glucocorticoids and how these hormones might underpin the connection between metabolic health and tendon dysfunction. CONCLUSIONS There are several plausible pathways through which glucocorticoids might mediate the connection between metabolic health and tendinopathy.
Collapse
Affiliation(s)
- Trevor Lewis
- Physiotherapy Department, Aintree University Hospital NHS Foundation Trust, Liverpool, UK
| | - Eva Zeisig
- Department of Surgical and Perioperative Sciences, Umeå Univerisity, Umeå, Sweden
| | - Jamie E Gaida
- University of Canberra Research Institute for Sport and Exercise (UCRISE), Canberra, Australian Capital Territory, Australia
| |
Collapse
|
134
|
Sun X, Feng M, Lu L, Zhao Z, Bao X, Deng K, Yao Y, Zhu H, Wang R. Lipid Abnormalities in Patients With Cushing's Disease and Its Relationship With Impaired Glucose Metabolism. Front Endocrinol (Lausanne) 2020; 11:600323. [PMID: 33633684 PMCID: PMC7899996 DOI: 10.3389/fendo.2020.600323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 12/15/2020] [Indexed: 01/27/2023] Open
Abstract
PURPOSE Dyslipidemia has been frequently reported and associated with increased cardiovascular risk in patients with Cushing's disease (CD). Few studies are available regarding the relationships between lipid abnormalities and other preoperative metabolic comorbidities in CD, and the data on alterations of the lipid profile after surgery is quite variable. We aimed to investigate the associations between hyperlipidemia and other baseline metabolic and hormonal parameters and the impact of surgical remission on lipid metabolism in patients with CD. METHODS This retrospective study included 104 patients diagnosed with CD. Baseline hormonal and metabolic parameters were compared between the hyperlipidemia (HLP) group and non-hyperlipidemia (NLP) group, and their relationships with hyperlipidemia at diagnosis were evaluated. Alterations in lipid profiles after surgical remission of CD were evaluated in 65 patients with available follow-up data. RESULTS Upon baseline, logistic regression analysis showed that impaired glucose metabolism (IGM) (OR=4.68, 95%CI:1.38-15.91) and morning cortisol levels (per 10 μg/dl change) (OR=1.81, 95%CI:1.11-2.95) are both independent risk factors of preoperative occurrence of hyperlipidemia in patients with CD. The baseline triglyceride (TG) level was positively correlated with systolic blood pressure (SBP) (r=0.297, p=0.003). Lipid abnormalities had improvement but may persist after surgical remission, and the persisted hyperlipidemia is associated with higher baseline total cholesterol (TC) levels (r=0.505, p=0.033). CONCLUSIONS Persistence of post-surgery hyperlipidemia is associated with severe baseline lipid abnormalities. Surgical remission with concomitant control of impaired glucose metabolism at diagnosis may have significant implications for controlling hyperlipidemia and reducing cardiovascular risk in CD.
Collapse
Affiliation(s)
- Xiaolin Sun
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Ming Feng
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
- *Correspondence: Ming Feng,
| | - Lin Lu
- Department of Endocrinology, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Zixuan Zhao
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Xinjie Bao
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Kan Deng
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Yong Yao
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Huijuan Zhu
- Department of Endocrinology, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| | - Renzhi Wang
- Department of Neurosurgery, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking Union Medical College Hospital, Beijing, China
| |
Collapse
|
135
|
Han M, Cao X, Zhao C, Yang L, Yin N, Shen P, Zhang J, Gao F, Ren Y, Liang D, Yang J, Zhang Y, Liu Y. Assessment of Glycometabolism Impairment and Glucose Variability Using Flash Glucose Monitoring System in Patients With Adrenal Diseases. Front Endocrinol (Lausanne) 2020; 11:544752. [PMID: 33101192 PMCID: PMC7546367 DOI: 10.3389/fendo.2020.544752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 09/08/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND This study aimed to investigate the characteristics and extent of glycometabolism impairment in patients with adrenal diseases, including Cushing syndrome, primary aldosteronism, pheochromocytoma, and nonfunctional adrenal incidentaloma. METHODS This study enrolled thirty-two patients with adrenal diseases as adrenal disease groups and eight healthy individuals as healthy controls. Blood glucose levels were indicated by glucose concentration in interstitial fluid, which was documented using flash glucose monitoring system. According to flash glucose monitoring system data, parameters representing general blood glucose alterations, within-day and day-to-day glucose variability, and glucose-target-rate were calculated. Furthermore, blood glucose levels at nocturnal, fasting, and postprandial periods were analyzed. Besides, islet β-cell function and insulin resistance were assessed. RESULTS Analysis of flash glucose monitoring system-related parameters indicated impaired glycometabolism in patients with adrenal diseases compared with that of healthy controls at general blood glucose, within-day and day-to-day glucose variability, and glucose-target-rate levels. Furthermore, the dynamic glucose monitoring data revealed that significantly affected blood glucose levels compared with that of healthy controls were observed at postprandial periods in the Cushing syndrome and primary aldosteronism groups; at nocturnal, fasting and postprandial periods in the pheochromocytoma group. Significant insulin resistance and abnormal β-cell function were observed in the Cushing syndrome group compared with that in healthy controls. CONCLUSION Adrenal diseases can negatively affect glucose metabolism. Patients diagnosed with adrenal diseases should receive timely and appropriate treatment to avoid adverse cardiovascular events linked to hyperglycemia and insulin resistance.
Collapse
Affiliation(s)
- Minmin Han
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaoming Cao
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Changjian Zhao
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Luyang Yang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Nan Yin
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Pengliang Shen
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Jin Zhang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Fei Gao
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yi Ren
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Dong Liang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Jing Yang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yi Zhang
- Department of Pharmacology, Shanxi Medical University, Taiyuan, China
- *Correspondence: Yi Zhang, ; Yunfeng Liu,
| | - Yunfeng Liu
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan, China
- *Correspondence: Yi Zhang, ; Yunfeng Liu,
| |
Collapse
|
136
|
Dey KK, Ghosh M. Understanding the structure and dynamics of anti-inflammatory corticosteroid dexamethasone by solid state NMR spectroscopy. RSC Adv 2020; 10:37564-37575. [PMID: 35521289 PMCID: PMC9057149 DOI: 10.1039/d0ra05474g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/01/2020] [Indexed: 12/31/2022] Open
Abstract
For decades corticosteroid dexamethasone has been applied as an anti-inflammatory, immunosuppressant, and decongestant, in the prevention of postoperative nausea and vomiting (PONV), and for auto-immune diseases, allergic reactions, total hip arthroplasty (THA), and cancer. Recently in vitro studies suggested that it may be beneficial to deal with the COVID-19 pandemic. This important drug molecule was investigated by solid state NMR measurements to provide more complete features of its structure and dynamics at atomic scale resolution. The spin–lattice relaxation time at twenty-two different carbon sites of dexamethasone was determined by the Torchia CP method. The principle components of the chemical shift anisotropy tensor were determined by 13C two-dimensional phase adjusted spinning sideband (2DPASS) cross-polarization magic angle spinning (CP-MAS) solid state NMR experiments. The molecular correlation time at twenty-two crystallographically different carbon sites of dexamethasone was calculated by considering that the spin–lattice relaxation mechanism of the 13C nucleus is mainly governed by the chemical shift anisotropy interaction and the heteronuclear dipole–dipole coupling. The spin–lattice relaxation time of carbon nuclei resides on ‘A’, ‘B’, ‘C’, and ‘D’ rings and the side-chain of dexamethasone is quite large, which implies the close-packed arrangement of the molecule. The difference in molecular correlation time at various regions of the molecule demonstrates the existence of different degrees of freedom within the molecule. This may be the reason for the various biological activities exhibited by the molecule. These types of detailed features of the structure and dynamics of such an important drug with multiple biological activities are necessary to develop the advanced medicine and it will also help to understand the structure–activity relationships of corticosteroid. The structure and dynamics of dexamethasone is determined by measuring CSA tensor, site-specific spin–lattice relaxation time.![]()
Collapse
Affiliation(s)
- Krishna Kishor Dey
- Department of Physics
- Dr. Harisingh Gour Central University
- Sagar-470003
- India
| | - Manasi Ghosh
- Physics Section
- MMV
- Banaras Hindu University
- Varanasi-221005
- India
| |
Collapse
|
137
|
ARAUJO JOÃOE, MACEDO FABRÍCION, OLIVEIRA DAVIP, BRITTO RAQUELM, QUINTANS JULLYANAS, BARRETO ROSANAS, SANTOS MARCIOR, QUINTANS-JUNIOR LUCINDOJ, BARRETO ANDRÉS. Resistance training prevents the reduction of insulin-mediated vasodilation in the mesenteric artery of dexamethasone-treated rats. AN ACAD BRAS CIENC 2020; 92:e20200316. [DOI: 10.1590/0001-3765202020200316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/22/2020] [Indexed: 12/30/2022] Open
Affiliation(s)
- JOÃO E.S. ARAUJO
- Universidade Federal de Sergipe, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Brazil; Universidade Tiradentes, Brazil
| | | | | | | | - JULLYANA S.S. QUINTANS
- Universidade Federal de Sergipe, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Brazil
| | - ROSANA S.S. BARRETO
- Universidade Federal de Sergipe, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Brazil
| | - MARCIO R.V. SANTOS
- Universidade Federal de Sergipe, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Brazil
| | | | | |
Collapse
|
138
|
Childhood social preference and adolescent insulin resistance: Accounting for the indirect effects of obesity. Psychoneuroendocrinology 2019; 113:104557. [PMID: 31884323 PMCID: PMC6953604 DOI: 10.1016/j.psyneuen.2019.104557] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 08/07/2019] [Accepted: 12/13/2019] [Indexed: 11/21/2022]
Abstract
Insulin resistance, hyperinsulinemia, and Type II diabetes are increasingly common among young people in the United States. The quality of social relationships is a predictor of cardiometabolic health among adults, but has not been studied as a predictor of earlier insulin resistance. The purpose of this study was to test whether social preference (likeability) during childhood predicts insulin resistance and a measure of central adiposity during adolescence. Obesity also was examined as one mechanism through which this association occurs. Data came from a long-term longitudinal community study. At approximately age 7, 240 children were rated by their classmates on how liked and how disliked they were (difference score indexes social preference). Nine years later, at age 16, the same children visited the university laboratory where height, weight, and several measures of central adiposity (waist circumference, sagittal diameter, and waist-to-height ratio) were assessed by trained interviewers. Adolescents also provided fasted blood samples, from which HOMA-estimated insulin resistance was assessed. A path model yielded adequate to good fit indices, χ2 (3, N = 240) = 6.689, p = .08, CFI = .97, RMSEA = .07 [95% CI = .00, .14], sRMR = .03. Results indicated that greater social preference at age 7 was significantly associated with lower IR at age 16. These findings suggest that children who are less liked by their classmates are more likely to demonstrate increased risk of IR. Additionally, BMI at age 15 was positively associated with both IR and WC at age 16. A bootstrapping procedure (10,000 draws) indicated that a child's likeability is associated with IR and WC through the association of likeability with later weight status. The quality of social relationships in childhood is important to consider when trying to understand the recent rise in adolescents' cardiometabolic risk and when considering intervention strategies.
Collapse
|
139
|
Sommerhalder C, Blears E, Murton AJ, Porter C, Finnerty C, Herndon DN. Current problems in burn hypermetabolism. Curr Probl Surg 2019; 57:100709. [PMID: 32033707 DOI: 10.1016/j.cpsurg.2019.100709] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/08/2019] [Indexed: 12/29/2022]
Affiliation(s)
| | | | | | - Craig Porter
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR
| | | | | |
Collapse
|
140
|
Pacholko AG, Wotton CA, Bekar LK. Poor Diet, Stress, and Inactivity Converge to Form a "Perfect Storm" That Drives Alzheimer's Disease Pathogenesis. NEURODEGENER DIS 2019; 19:60-77. [PMID: 31600762 DOI: 10.1159/000503451] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/17/2019] [Indexed: 11/19/2022] Open
Abstract
North American incidence of Alzheimer's disease (AD) is expected to more than double over the coming generation. Although genetic factors surrounding the production and clearance of amyloid-β and phosphorylated tau proteins are known to be responsible for a subset of early-onset AD cases, they do not explain the pathogenesis of the far more prevalent sporadic late-onset variant of the disease. It is thus likely that lifestyle and environmental factors contribute to neurodegenerative processes implicated in the pathogenesis of AD. Herein, we review evidence that (1) excess sucrose consumption induces AD-associated liver pathologies and brain insulin resistance, (2) chronic stress overdrives activity of locus coeruleus neurons, leading to loss of function (a common event in neurodegeneration), (3) high-sugar diets and stress promote the loss of neuroprotective sex hormones in men and women, and (4) Western dietary trends set the stage for a lithium-deficient state. We propose that these factors may intersect as part of a "perfect storm" to contribute to the widespread prevalence of neurodegeneration and AD. In addition, we put forth the argument that exercise and supplementation with trace lithium can counteract many of the deleterious consequences associated with excessive caloric intake and perpetual stress. We conclude that lifestyle and environmental factors likely contribute to AD pathogenesis and that simple lifestyle and dietary changes can help counteract their effects.
Collapse
Affiliation(s)
- Anthony G Pacholko
- Department of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Caitlin A Wotton
- Department of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Lane K Bekar
- Department of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada,
| |
Collapse
|
141
|
Ramshanker N, Jessen N, Voss TS, Pedersen SB, Jørgensen JOL, Nielsen TS, Frystyk J, Møller N. Effects of short-term prednisolone treatment on indices of lipolysis and lipase signaling in abdominal adipose tissue in healthy humans. Metabolism 2019; 99:1-10. [PMID: 31260678 DOI: 10.1016/j.metabol.2019.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 06/14/2019] [Accepted: 06/25/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Glucocorticoid (GC) excess increases lipolysis, circulating free fatty acid concentrations and lipid oxidation rates in humans. In vitro and animal studies have shown that GCs increase adipocyte ATGL and HSL mRNA contents and HSL phosphorylations, but the effects of GC on in vivo lipase signaling in humans are uncertain. Our study was designed to test how GC administration affects ATGL and HSL related signals in human adipose tissue. MATERIAL AND METHODS Nine healthy young men underwent 5 days administration of 37.5 mg prednisolone/d in a randomized, double-blinded, placebo-controlled crossover design. At the end of each 5 d period the subjects were studied after an overnight fast for 6.5 h including a basal period and a 2½ h hyperinsulinemic euglycemic clamp. Adipose tissue biopsies were sampled from the abdominal subcutaneous adipose tissue at the end of the basal period and the clamp. RESULTS GC treatment increased serum FFA concentrations and comparative gene identification-58 (CGI-58) mRNA - an ATGL activator - and decreased G0/G1 switch 2 gene (G0S2) mRNA - an ATGL inhibitor - in adipose tissue biopsies. In addition, pro-lipolytic ser563 HSL phosphorylations and protein kinase A (PKA) phosphorylation of PLIN1 (Perilipin-1) increased. The transcripts of ANGPTL4 (Angiopoietin-like 4) mRNA - a regulator of circulating triglycerides - were elevated by GC; as were CIDE (Cell-death Inducing DNA fragmentation factor-α-like Effector)-A and CIDE-C mRNA transcripts indicative of concurrent stimulation of lipolysis and lipogenesis. Finally GCs reduced insulin receptor phosphorylation, and Akt protein levels. CONCLUSIONS High dose GC administration to humans leads to pro-lipolytic alterations of CGI-58, G0S2 and ANGPTL4 mRNA transcripts, increases PKA signaling to lipolysis and inhibits the insulin signal in adipose tissue. The increased CIDE-A and CIDE-C mRNA levels suggest concomitant stimulation of lipolysis and lipid storage.
Collapse
Affiliation(s)
- Nilani Ramshanker
- Medical Research Laboratory, Department of Clinical Medicine, Health, Aarhus University, Palle Juul-Jensens Blvd. 165, DK-8200 Aarhus N, Denmark.
| | - Niels Jessen
- Research Laboratory for Biochemical Pathology, Department of Clinical Medicine, Health, Aarhus University, Palle Juul-Jensens Blvd. 99, DK-8200 Aarhus N, Denmark; Department of Clinical Pharmacology, Wilhelm Meyers Allé 4, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Thomas Schmidt Voss
- Medical Research Laboratory, Department of Clinical Medicine, Health, Aarhus University, Palle Juul-Jensens Blvd. 165, DK-8200 Aarhus N, Denmark
| | - Steen Bønløkke Pedersen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle-Juul Jensens Blvd. 99, DK-8200 Aarhus N, Denmark
| | - Jens Otto Lunde Jørgensen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle-Juul Jensens Blvd. 99, DK-8200 Aarhus N, Denmark
| | - Thomas Svava Nielsen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3A, DK-2200 Copenhagen N, Denmark
| | - Jan Frystyk
- Medical Research Laboratory, Department of Clinical Medicine, Health, Aarhus University, Palle Juul-Jensens Blvd. 165, DK-8200 Aarhus N, Denmark
| | - Niels Møller
- Medical Research Laboratory, Department of Clinical Medicine, Health, Aarhus University, Palle Juul-Jensens Blvd. 165, DK-8200 Aarhus N, Denmark; Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle-Juul Jensens Blvd. 99, DK-8200 Aarhus N, Denmark
| |
Collapse
|
142
|
Naseem S, Baneen U. Systemic inflammation in patients of chronic obstructive pulmonary disease with metabolic syndrome. J Family Med Prim Care 2019; 8:3393-3398. [PMID: 31742175 PMCID: PMC6857392 DOI: 10.4103/jfmpc.jfmpc_482_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 06/19/2019] [Accepted: 07/12/2019] [Indexed: 11/30/2022] Open
Abstract
Context: India has 18% of the global population and an increasing burden of chronic respiratory diseases. The prevalence of Metabolic syndrome (MS) was found to be as high as 39.7% among Indian population. Metabolic syndrome is found to be more common in Chronic Obstructive Pulmonary Disease (COPD) when compared to the general population. This study was done to assess the prevalence of metabolic syndrome in COPD and the association of systemic inflammation in COPD patients with metabolic syndrome. Methodology: This study enrolled 150 consecutive consenting patients of stable COPD attending the outpatient pulmonology department. Detailed history, clinical examination, spirometry, and relevant routine laboratory investigations including complete blood count, fasting blood sugar, and lipid profile were done. In addition, hsCRP, Serum lactate and Vitamin D level was assessed in all patients. Diagnosis of COPD and Metabolic syndrome was done according to GOLD guidelines, 2018 and the International Diabetes Federation criteria respectively. Result: The prevalence of metabolic syndrome was found to be 27.3% in our COPD patients. The frequency of metabolic syndrome in GOLD stage I, II, III, and IV was 75%, 32%, 17%, and 13.5%, respectively. Logistic regression analysis showed a significant relationship of blood leucocyte count (OR = 0.342, CI = 0.171-0.686), hs-CRP (OR = 0.020, CI = 0.003-0.122), pack years (OR = 1.083, CI = 1.026-1.14) and vitamin D levels (OR = 1.219, CI = 1.093-1.359) with metabolic syndrome in COPD patients. Conclusion: Metabolic syndrome is a co-morbidity that is very often overlooked in patients of COPD. Systemic inflammation which is a common characteristic of both COPD and Metabolic syndrome has been found to be an important contributor towards cardiovascular morbidity and mortality.
Collapse
Affiliation(s)
- Sufia Naseem
- Department of Biochemistry, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Ummul Baneen
- Department of Tuberculosis and Respiratory Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| |
Collapse
|
143
|
Morais JBS, Severo JS, Beserra JB, de Oiveira ARS, Cruz KJC, de Sousa Melo SR, do Nascimento GVR, de Macedo GFS, do Nascimento Marreiro D. Association Between Cortisol, Insulin Resistance and Zinc in Obesity: a Mini-Review. Biol Trace Elem Res 2019; 191:323-330. [PMID: 30617901 DOI: 10.1007/s12011-018-1629-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 12/27/2018] [Indexed: 01/24/2023]
Abstract
Adipose tissue is considered an endocrine organ and its excess compromises the immune response and the metabolism of hormones and nutrients. Furthermore, visceral fat accumulation contributes to increased cortisol synthesis, which in turn induces metallothionein and Zip14 expression, which are proteins that contribute to reducing plasma zinc levels. Zinc plays a critical role in the secretion and signaling of insulin. Changes in the biochemical parameters of zinc, as observed in individuals who are obese, contribute to the manifestation of related disorders such as insulin resistance. Thus, the purpose of this review is to provide an update on the current information on the relationship between cortisol, zinc, and insulin resistance in obesity. The data in the literature provide evidence that cortisol affects zinc metabolism, and indicate possible repercussions on insulin signaling that might contribute to the development of resistance to the actions of insulin in obesity.
Collapse
Affiliation(s)
| | - Juliana Soares Severo
- Department of Nutrition, Health Sciences Center, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Jéssica Batista Beserra
- Department of Nutrition, Health Sciences Center, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | | | | | | | | |
Collapse
|
144
|
Feng X, Xu W, Li Z, Song W, Ding J, Chen X. Immunomodulatory Nanosystems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900101. [PMID: 31508270 PMCID: PMC6724480 DOI: 10.1002/advs.201900101] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/21/2019] [Indexed: 05/15/2023]
Abstract
Immunotherapy has emerged as an effective strategy for the prevention and treatment of a variety of diseases, including cancer, infectious diseases, inflammatory diseases, and autoimmune diseases. Immunomodulatory nanosystems can readily improve the therapeutic effects and simultaneously overcome many obstacles facing the treatment method, such as inadequate immune stimulation, off-target side effects, and bioactivity loss of immune agents during circulation. In recent years, researchers have continuously developed nanomaterials with new structures, properties, and functions. This Review provides the most recent advances of nanotechnology for immunostimulation and immunosuppression. In cancer immunotherapy, nanosystems play an essential role in immune cell activation and tumor microenvironment modulation, as well as combination with other antitumor approaches. In infectious diseases, many encouraging outcomes from using nanomaterial vaccines against viral and bacterial infections have been reported. In addition, nanoparticles also potentiate the effects of immunosuppressive immune cells for the treatment of inflammatory and autoimmune diseases. Finally, the challenges and prospects of applying nanotechnology to modulate immunotherapy are discussed.
Collapse
Affiliation(s)
- Xiangru Feng
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
- University of Science and Technology of ChinaHefei230026P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Zhongmin Li
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
- Department of Gastrointestinal Colorectal and Anal SurgeryChina–Japan Union Hospital of Jilin UniversityChangchun130033P. R. China
| | - Wantong Song
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P. R. China
| |
Collapse
|
145
|
Adhikary S, Kothari P, Choudhary D, Tripathi AK, Trivedi R. Glucocorticoid aggravates bone micro-architecture deterioration and skeletal muscle atrophy in mice fed on high-fat diet. Steroids 2019; 149:108416. [PMID: 31150681 DOI: 10.1016/j.steroids.2019.05.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/10/2019] [Accepted: 05/24/2019] [Indexed: 11/30/2022]
Abstract
High fat diet (HFD) induced obesity has deleterious effect on bone micro-architecture and is associated with low-grade chronic inflammation. Exogenous glucocorticoids (GC) are used to treat inflammatory conditions but with concomitant adverse effect on musculoskeletal system. This study aims to highlight the effect of exogenous GCs on musculoskeletal system in mice fed on HFD. Adult BALB/c mice were fed either normal chow or high fat diet and were exogenously administered with GC for 10 weeks. At the end of the study, animals were autopsied and bone, muscle, serum samples were collected for micro-CT, gene expression and histological study. HFD induced obesity resulted in deterioration in bone micro-architecture predominant in trabecular region of long bones and was significantly amplified with GC administration. Approximately, 37% and 25% loss in femoral and tibial bone volume was observed in obese animals with exogenous GC. Further, deteriorating bone pathology was apparent from reduced bone mineral density (BMD) and bone strength parameter which was correlated to alteration in osteoblast and adipocytes pool of cells in bone marrow. Transcriptional analysis of osteoblast marker genes, bone morphogenetic protein 2 (BMP-2), osteocalcin (OCN) exhibited decreased formation. Moreover, similar degeneration was observed in skeletal muscle physiology with stimulation in muscle atrophy genes atrogin-1, muscle ring finger motif-1 (MuRF-1) and inflammatory markers accompanied with intra-myocellular lipid accumulation. Thus, our results showed that detrimental effect of GC on bone and skeletal muscle is aggravated with HFD, attributed to alteration in bone marrow cell population and skeletal muscle atrophy.
Collapse
Affiliation(s)
- Sulekha Adhikary
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Priyanka Kothari
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dharmendra Choudhary
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ashish Kumar Tripathi
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ritu Trivedi
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India.
| |
Collapse
|
146
|
Protective Effects of Aqueous Extract of Baillonella toxisperma Stem Bark on Dexamethasone-Induced Insulin Resistance in Rats. Adv Pharmacol Sci 2019; 2019:8075163. [PMID: 31534451 PMCID: PMC6732611 DOI: 10.1155/2019/8075163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 06/12/2019] [Accepted: 07/25/2019] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the effects of the aqueous extract of Baillonella toxisperma stem bark on dexamethasone-induced insulin resistance in rats. A quantitative phytochemical study was done on the aqueous extract of Baillonella toxisperma for the total phenol, flavonoid, and flavonol determination. Insulin resistance was induced by intraperitoneal injection of dexamethasone (1 mg/kg) for 8 days, one hour before oral administration of different treatments (extract at doses of 60, 120, and 240 mg/kg and metformin at 40 mg/kg). During the test, body weight and blood glucose level were evaluated on days 1 and 8. At the last day of treatment, the glucose tolerance test was performed in rats; after that, blood samples were collected for triglycerides, total cholesterol, LDL and HDL cholesterols, transaminases (ALT and AST), and total protein level determination. Organs (heart, liver, pancreas, and kidneys) were also collected for the relative organ weight determination. The results showed that the aqueous extract of B. toxisperma is rich in total phenols, flavonoids, and flavonols. This extract significantly reversed the metabolic alterations (lipid profile, protein level, and transaminase activity) induced by dexamethasone in rats. At doses of 120 and 60 mg/kg, Baillonella toxisperma also significantly decreases (p < 0.05; p < 0.01) postprandial hyperglycemia in insulin resistance rats. The results suggest that Baillonella toxisperma can manage insulin resistance and may be useful for the treatment of type 2 diabetes mellitus.
Collapse
|
147
|
Puigoriol-Illamola D, Leiva R, Vázquez-Carrera M, Vázquez S, Griñán-Ferré C, Pallàs M. 11β-HSD1 Inhibition Rescues SAMP8 Cognitive Impairment Induced by Metabolic Stress. Mol Neurobiol 2019; 57:551-565. [PMID: 31399953 DOI: 10.1007/s12035-019-01708-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/10/2019] [Indexed: 12/11/2022]
Abstract
Ageing and obesity have been shown to increase the risk of cognitive decline and Alzheimer's disease (AD). Besides, elevated glucocorticoid (GCs) levels cause metabolic stress and have been associated with the neurodegenerative process. Direct pieces of evidence link the reduction of GCs caused by the inhibition of 11β-HSD type 1 (11β-HSD1) with cognitive improvement. In the present study, we investigated the beneficial effects of 11β-HSD1 inhibitor (i) RL-118 after high-fat diet (HFD) treatment in the senescence-accelerated mouse prone 8 (SAMP8). We found an improvement in glucose intolerance induced by HFD in mice treated with RL-118, a significant reduction in 11β-HSD1 and glucocorticoid receptor (GR) protein levels. Furthermore, specific modifications in the FGF21 activation after treatment with 11β-HSD1i, RL-118, which induced changes in SIRT1/PGC1α/AMPKα pathway, were found. Oxidative stress (OS) and reactive oxygen species (ROS), as well as inflammatory markers and microglial activation, were significantly diminished in HFD mice treated with 11β-HSD1i. Remarkably, treatment with 11β-HSD1i altered PERK pathway in both diet groups, increasing autophagy only in HFD mice group. After RL-118 treatment, a decrease in glycogen synthase kinase 3 (GSK3β) activation, Tau hyperphosphorylation, BACE1 protein levels and the product β-CTF were found. Increases in the non-amyloidogenic secretase ADAM10 protein levels and the product sAPPα were found in both treated mice, regardless of the diet. Consequently, beneficial effects on social behaviour and cognitive performance were found in treated mice. Thus, our results support the therapeutic strategy of selective 11β-HSD1i for the treatment of age-related cognitive decline and AD.
Collapse
Affiliation(s)
- Dolors Puigoriol-Illamola
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain.,Institute of Neuroscience, University of Barcelona (NeuroUB), Barcelona, Spain
| | - Rosana Leiva
- Laboratori de Química Farmacèutica (Unitat Associada al CSIC), Department de Farmacologia, Toxicologia i Química Terapèutica, Facultat de Farmàcia i Ciències de l'Alimentació, and Institute of Biomedicine (IBUB), Universitat de Barcelona, Av. Joan XXIII, 27-31, 08028, Barcelona, Spain.,Institute of Biomedicine, University of Barcelona (IBUB), Barcelona, Spain
| | - Manel Vázquez-Carrera
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain.,Institute of Biomedicine, University of Barcelona (IBUB), Barcelona, Spain.,Spanish Biomedical Research Center in Diabetes and Associated Metabolic Diseases (CIBERDEM)-Instituto de Salud Carlos III, Madrid, Spain.,Pediatric Research Institute-Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Santiago Vázquez
- Laboratori de Química Farmacèutica (Unitat Associada al CSIC), Department de Farmacologia, Toxicologia i Química Terapèutica, Facultat de Farmàcia i Ciències de l'Alimentació, and Institute of Biomedicine (IBUB), Universitat de Barcelona, Av. Joan XXIII, 27-31, 08028, Barcelona, Spain.,Institute of Biomedicine, University of Barcelona (IBUB), Barcelona, Spain
| | - Christian Griñán-Ferré
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain.,Institute of Neuroscience, University of Barcelona (NeuroUB), Barcelona, Spain
| | - Mercè Pallàs
- Pharmacology Section, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII 27-31, 08028, Barcelona, Spain. .,Institute of Neuroscience, University of Barcelona (NeuroUB), Barcelona, Spain.
| |
Collapse
|
148
|
Affiliation(s)
- E C Johns
- Tommy's Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh, Queen's Medical Research Institute, Edinburgh, UK
| | - R M Reynolds
- Tommy's Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh, Queen's Medical Research Institute, Edinburgh, UK.
- BHF Centre for Cardiovascular Science, University of Edinburgh, Queen's Medical Research Institute, Edinburgh, UK.
| |
Collapse
|
149
|
Shapey IM, Summers A, Yiannoullou P, Bannard-Smith J, Augustine T, Rutter MK, van Dellen D. Insulin therapy in organ donation and transplantation. Diabetes Obes Metab 2019; 21:1521-1528. [PMID: 30924574 DOI: 10.1111/dom.13728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/12/2019] [Accepted: 03/26/2019] [Indexed: 12/27/2022]
Abstract
Hyperglycaemia is common in hospitalized individuals, and is often caused by physiological stress associated with critical illness or major surgery. Insulin therapy is an established treatment for hyperglycaemia and acute hyperkalaemia, and has also been used for myocardial dysfunction resistant to inotropic support. Insulin is commonly used in both organ donors and transplant recipients for hyperglycaemia, but the underlying knowledge base supporting its use remains limited. Insulin therapy plays an important yet poorly understood role in both organ donation and transplantation. Tight glycaemic control has been extensively studied in critical care over the past 15 years; however, this has not yet translated into the field of transplantation, where patients are more unwell and where improved outcomes remain an ongoing challenge. Insulin therapy and optimization of glycaemic control represent important areas for future hypothesis-driven research into organ donation and transplantation, such as amelioration of ischaemia-reperfusion injury, rejection and infection.
Collapse
Affiliation(s)
- Iestyn M Shapey
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Renal and Pancreatic Transplantation, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Angela Summers
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Renal and Pancreatic Transplantation, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Petros Yiannoullou
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Renal and Pancreatic Transplantation, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Jonathan Bannard-Smith
- Department of Critical Care, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Titus Augustine
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Renal and Pancreatic Transplantation, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Martin K Rutter
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Manchester Diabetes Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - David van Dellen
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Medicine, Biology and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Department of Renal and Pancreatic Transplantation, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| |
Collapse
|
150
|
English K, Chikani V, Dimeski G, Inder WJ. Elevated insulin-like growth factor-1 in Cushing's disease. Clin Endocrinol (Oxf) 2019; 91:141-147. [PMID: 30901100 DOI: 10.1111/cen.13974] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/05/2019] [Accepted: 03/19/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To determine if patients with untreated Cushing's disease have higher serum insulin-like growth factor-1 (IGF-1) compared to matched controls, and if IGF-1 decreases following remission of Cushing's disease. DESIGN Retrospective case-control study matching Cushing's disease cases to control patients for adenoma size, age, sex, diabetic and gonadal status, body mass index and serum IGF-1 measured within one year. Paired analysis of pre-operative (untreated) and >3 months post-operative (remission) serum IGF-1 for cases. PATIENTS AND MEASUREMENTS All patients were investigated at the Princess Alexandra Hospital Endocrine Unit between 2005 and 2017. Serum IGF-1 was measured in 25 cases and 49 controls, 23 case-control pairs and 13 cases pre- and post-operatively. RESULTS Mean serum IGF-1 in cases was significantly higher compared to controls-32 ± 12 nmol/L compared to 25 ± 8 nmol/L, (P = 0.005). The proportion of cases with elevated serum IGF-1 above an age-adjusted reference range was higher compared to 1:1 matched controls (8/23 (35%) vs 1/23 (4%), P = 0.02). In 13 cases in remission post-operatively, serum IGF-1 decreased significantly from 31 (IQR 29-40.5) nmol/L to 23 (IQR 15-28.5) nmol/L, (P < 0.001), despite no difference in the prevalence of pre- vs post-operative pituitary hormone dysfunction (P = 0.47). CONCLUSION Patients with untreated Cushing's disease may have elevated IGF-1, which decreases following remission. Mildly elevated IGF-1 in Cushing's disease does not imply pathological growth hormone (GH) excess.
Collapse
Affiliation(s)
- Katherine English
- Department of Diabetes and Endocrinology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Viral Chikani
- Department of Diabetes and Endocrinology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Goce Dimeski
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
- Department of Chemical Pathology, Pathology Queensland, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Warrick J Inder
- Department of Diabetes and Endocrinology, Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| |
Collapse
|