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Merzah M, Natae S, Sándor J, Fiatal S. Single Nucleotide Variants (SNVs) of the Mesocorticolimbic System Associated with Cardiovascular Diseases and Type 2 Diabetes: A Systematic Review. Genes (Basel) 2024; 15:109. [PMID: 38254998 PMCID: PMC10815084 DOI: 10.3390/genes15010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The mesocorticolimbic (MCL) system is crucial in developing risky health behaviors which lead to cardiovascular diseases (CVDs) and type 2 diabetes (T2D). Although there is some knowledge of the MCL system genes linked to CVDs and T2D, a comprehensive list is lacking, underscoring the significance of this review. This systematic review followed PRISMA guidelines and the Cochrane Handbook for Systematic Reviews of Interventions. The PubMed and Web of Science databases were searched intensively for articles related to the MCL system, single nucleotide variants (SNVs, formerly single nucleotide polymorphisms, SNPs), CVDs, T2D, and associated risk factors. Included studies had to involve a genotype with at least one MCL system gene (with an identified SNV) for all participants and the analysis of its link to CVDs, T2D, or associated risk factors. The quality assessment of the included studies was performed using the Q-Genie tool. The VEP and DAVID tools were used to annotate and interpret genetic variants and identify enriched pathways and gene ontology terms associated with the gene list. The review identified 77 articles that met the inclusion criteria. These articles provided information on 174 SNVs related to the MCL system that were linked to CVDs, T2D, or associated risk factors. The COMT gene was found to be significantly related to hypertension, dyslipidemia, insulin resistance, obesity, and drug abuse, with rs4680 being the most commonly reported variant. This systematic review found a strong association between the MCL system and the risk of developing CVDs and T2D, suggesting that identifying genetic variations related to this system could help with disease prevention and treatment strategies.
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Affiliation(s)
- Mohammed Merzah
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Shewaye Natae
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - János Sándor
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
- ELKH-DE Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Szilvia Fiatal
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.M.)
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Masliukov PM. Changes of Signaling Pathways in Hypothalamic Neurons with Aging. Curr Issues Mol Biol 2023; 45:8289-8308. [PMID: 37886966 PMCID: PMC10605528 DOI: 10.3390/cimb45100523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/01/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
The hypothalamus is an important regulator of autonomic and endocrine functions also involved in aging regulation. The aging process in the hypothalamus is accompanied by disturbed intracellular signaling including insulin/insulin-like growth factor-1 (IGF-1)/growth hormone (GH), phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/protein kinase B (AKT)/the mammalian target of rapamycin (mTOR), mitogen activated protein kinase (MAPK), janus kinase (JAK)/signal transducer and activator of transcription (STAT), AMP-activated protein kinase (AMPK), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-ĸB), and nitric oxide (NO). In the current review, I have summarized the current understanding of the changes in the above-mentioned pathways in aging with a focus on hypothalamic alterations.
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Affiliation(s)
- Petr M Masliukov
- Department Normal Physiology, Yaroslavl State Medical University, ul. Revoliucionnaya 5, 150000 Yaroslavl, Russia
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3
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Koshatwar M, Acharya S, Prasad R, Lohakare T, Wanjari M, Taksande AB. Exploring the Potential of Antidiabetic Agents as Therapeutic Approaches for Alzheimer's and Parkinson's Diseases: A Comprehensive Review. Cureus 2023; 15:e44763. [PMID: 37809189 PMCID: PMC10556988 DOI: 10.7759/cureus.44763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Alzheimer's and Parkinson's are two prevalent neurodegenerative disorders with significant societal and healthcare burdens. The search for effective therapeutic approaches to combat these diseases has led to growing interest in exploring the potential of antidiabetic agents. This comprehensive review aims to provide a detailed overview of the current literature on using antidiabetic agents as therapeutic interventions for Alzheimer's and Parkinson's diseases. We discuss the underlying pathological mechanisms of these neurodegenerative diseases, including protein misfolding, inflammation, oxidative stress, and mitochondrial dysfunction. We then delve into the potential mechanisms by which antidiabetic agents may exert neuroprotective effects, including regulation of glucose metabolism and insulin signaling, anti-inflammatory effects, modulation of oxidative stress, and improvement of mitochondrial function and bioenergetics. We highlight in vitro, animal, and clinical studies that support the potential benefits of antidiabetic agents in reducing disease pathology and improving clinical outcomes. However, we also acknowledge these agents' limitations, variability in treatment response, and potential side effects. Furthermore, we explore emerging therapeutic targets and novel approaches, such as glucagon-like peptide-1 receptor (GLP-1R) agonists, insulin sensitizer drugs, neuroinflammation-targeted therapies, and precision medicine approaches. The review concludes by emphasizing the need for further research, including large-scale clinical trials, to validate the efficacy and safety of antidiabetic agents in treating Alzheimer's and Parkinson's disease. The collaboration between researchers, clinicians, and pharmaceutical companies is essential in advancing the field and effectively treating patients affected by these debilitating neurodegenerative disorders.
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Affiliation(s)
- Mahima Koshatwar
- Department of Internal Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sourya Acharya
- Department of Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Roshan Prasad
- Department of Internal Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Tejaswee Lohakare
- Department of Child Health Nursing, Smt. Radhikabai Meghe Memorial College of Nursing, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Mayur Wanjari
- Department of Research and Development, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Avinash B Taksande
- Department of Physiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Neurotransmitters in Type 2 Diabetes and the Control of Systemic and Central Energy Balance. Metabolites 2023; 13:metabo13030384. [PMID: 36984824 PMCID: PMC10058084 DOI: 10.3390/metabo13030384] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 03/08/2023] Open
Abstract
Efficient signal transduction is important in maintaining the function of the nervous system across tissues. An intact neurotransmission process can regulate energy balance through proper communication between neurons and peripheral organs. This ensures that the right neural circuits are activated in the brain to modulate cellular energy homeostasis and systemic metabolic function. Alterations in neurotransmitters secretion can lead to imbalances in appetite, glucose metabolism, sleep, and thermogenesis. Dysregulation in dietary intake is also associated with disruption in neurotransmission and can trigger the onset of type 2 diabetes (T2D) and obesity. In this review, we highlight the various roles of neurotransmitters in regulating energy balance at the systemic level and in the central nervous system. We also address the link between neurotransmission imbalance and the development of T2D as well as perspectives across the fields of neuroscience and metabolism research.
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Zorina II, Avrova NF, Zakharova IO, Shpakov AO. Prospects for the Use of Intranasally Administered Insulin and Insulin-Like Growth Factor-1 in Cerebral Ischemia. BIOCHEMISTRY (MOSCOW) 2023; 88:374-391. [PMID: 37076284 DOI: 10.1134/s0006297923030070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Current approaches to the treatment of stroke have significant limitations, and neuroprotective therapy is ineffective. In view of this, searching for effective neuroprotectors and developing new neuroprotective strategies remain a pressing topic in research of cerebral ischemia. Insulin and insulin-like growth factor-1 (IGF-1) play a key role in the brain functioning by regulating the growth, differentiation, and survival of neurons, neuronal plasticity, food intake, peripheral metabolism, and endocrine functions. Insulin and IGF-1 produce multiple effects in the brain, including neuroprotective action in cerebral ischemia and stroke. Experiments in animals and cell cultures have shown that under hypoxic conditions, insulin and IGF-1 improve energy metabolism in neurons and glial cells, promote blood microcirculation in the brain, restore nerve cell functions and neurotransmission, and produce the anti-inflammatory and antiapoptotic effects on brain cells. The intranasal route of insulin and IGF-1 administration is of particular interest in the clinical practice, since it allows controlled delivery of these hormones directly to the brain, bypassing the blood-brain barrier. Intranasally administered insulin alleviated cognitive impairments in elderly people with neurodegenerative and metabolic disorders; intranasally administered insulin and IGF-1 promoted survival of animals with ischemic stroke. The review discusses the published data and results of our own studies on the mechanisms of neuroprotective action of intranasally administered insulin and IGF-1 in cerebral ischemia, as well as the prospects of using these hormones for normalization of CNS functions and reduction of neurodegenerative changes in this pathology.
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Affiliation(s)
- Inna I Zorina
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia.
| | - Natalia F Avrova
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
| | - Irina O Zakharova
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
| | - Alexander O Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
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Shpakov AO, Zorina II, Derkach KV. Hot Spots for the Use of Intranasal Insulin: Cerebral Ischemia, Brain Injury, Diabetes Mellitus, Endocrine Disorders and Postoperative Delirium. Int J Mol Sci 2023; 24:3278. [PMID: 36834685 PMCID: PMC9962062 DOI: 10.3390/ijms24043278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 02/11/2023] Open
Abstract
A decrease in the activity of the insulin signaling system of the brain, due to both central insulin resistance and insulin deficiency, leads to neurodegeneration and impaired regulation of appetite, metabolism, endocrine functions. This is due to the neuroprotective properties of brain insulin and its leading role in maintaining glucose homeostasis in the brain, as well as in the regulation of the brain signaling network responsible for the functioning of the nervous, endocrine, and other systems. One of the approaches to restore the activity of the insulin system of the brain is the use of intranasally administered insulin (INI). Currently, INI is being considered as a promising drug to treat Alzheimer's disease and mild cognitive impairment. The clinical application of INI is being developed for the treatment of other neurodegenerative diseases and improve cognitive abilities in stress, overwork, and depression. At the same time, much attention has recently been paid to the prospects of using INI for the treatment of cerebral ischemia, traumatic brain injuries, and postoperative delirium (after anesthesia), as well as diabetes mellitus and its complications, including dysfunctions in the gonadal and thyroid axes. This review is devoted to the prospects and current trends in the use of INI for the treatment of these diseases, which, although differing in etiology and pathogenesis, are characterized by impaired insulin signaling in the brain.
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Affiliation(s)
- Alexander O. Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, 194223 St. Petersburg, Russia
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Desai A, Chen R, Cayetano A, Jayasena CN, Minhas S. Understanding and treating ejaculatory dysfunction in men with diabetes mellitus. Andrology 2023; 11:379-398. [PMID: 35933708 DOI: 10.1111/andr.13262] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/27/2022] [Accepted: 08/02/2022] [Indexed: 01/24/2023]
Abstract
Diabetes mellitus is a rapidly rising metabolic disorder with important systemic complications. Global figures have demonstrated the prevalence of diabetes mellitus has almost quadrupled from 108 million in 1980 to 422 million in 2014, with a current prevalence of over 525 million. Of the male sexual dysfunction resulting from diabetes mellitus, significant focus is afforded to erectile dysfunction. Nevertheless, ejaculatory dysfunction constitutes important sexual sequelae in diabetic men, with up to 35%-50% of men with diabetes mellitus suffering from ejaculatory dysfunction. Despite this, aspects of its pathophysiology and treatment are less well understood than erectile dysfunction. The main disorders of ejaculation include premature ejaculation, delayed ejaculation, anejaculation and retrograde ejaculation. Although ejaculatory dysfunction in diabetes mellitus can have complex multifactorial aetiology, understanding its pathophysiological mechanisms has facilitated the development of therapies in the management of ejaculatory dysfunction. Most of our understanding of its pathophysiology is derived from diabetic animal models; however, observational studies in humans have also provided useful information in elucidating important associative factors potentially contributing to ejaculatory dysfunction in diabetic men. These have provided the potential for more tailored treatment regimens in patients depending on the ejaculatory disorder, other co-existing sequelae of diabetes mellitus, specific metabolic factors as well as the need for fertility treatment. However, evidence for treatment of ejaculatory dysfunction, especially delayed ejaculation and retrograde ejaculation, is based on low-level evidence comprising small sample-size series and retrospective or cross-sectional studies. Whilst promising findings from large randomised controlled trials have provided strong evidence for the licensed treatment of premature ejaculation, similar robust studies are needed to accurately elucidate factors predicting ejaculatory dysfunction in diabetes mellitus, as well as for the development of pharmacotherapies for delayed ejaculation and retrograde ejaculation. Similarly, more contemporary robust data are required for fertility outcomes in these patients, including methods of sperm retrieval and assisted reproductive techniques in retrograde ejaculation.
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Affiliation(s)
- Ankit Desai
- Department of Andrology, Imperial Healthcare NHS Trust, London, UK
| | - Runzhi Chen
- Department of Andrology, Imperial Healthcare NHS Trust, London, UK
| | - Axel Cayetano
- Department of Andrology, Imperial Healthcare NHS Trust, London, UK
| | - Channa N Jayasena
- Department of Reproductive Endocrinology, Imperial Healthcare NHS Trust, London, UK
| | - Suks Minhas
- Department of Andrology, Imperial Healthcare NHS Trust, London, UK
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Zakharova IO, Zorina II, Bayunova LV, Shpakov AO, Avrova NF. Protective and Antioxidant Effects of Insulin on Rat Brain Cortical Neurons in an in vitro Model of Oxygen and Glucose Deprivation. J EVOL BIOCHEM PHYS+ 2023. [DOI: 10.1134/s0022093023010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Andraini T, Mardatillah J, Kartinah N, Paramita N, Santoso D, Yolanda S, Puspasari B, Rusli H. Physical exercise promotes memory function in diabetes mellitus rats: a look at glucagon like peptide-1 and glucagon like peptide-1 receptor. COMPARATIVE EXERCISE PHYSIOLOGY 2022. [DOI: 10.3920/cep220020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Diabetes mellitus (DM) is a metabolic disorder associated with declining of memory function. Glucagon like peptide-1 (GLP-1) has a role on memory function; binding of GLP-1 and GLP-1 receptor (GLP-1R) can enhance synaptic plasticity. Physical exercise has effect in increasing GLP-1 levels mediated by interleukin (IL)-6 in plasma. However, the effect of physical exercise on GLP-1 and GLP-1R in hippocampus is still unclear. Therefore, we investigated the effect of continuous and interval training on memory function through GLP-1/GLP-1R and its relation to hippocampal IL-6 of DM rats. This was an experimental study using 8-week-old Wistar rats, divided into four groups: normal control (Con); DM control (ConDM); DM with continuous training (DM-CT); and DM with interval training (DM-IT). DM-CT and DM-IT rats were trained six times a week for six weeks. All rats performed the forced alteration Y-maze test to verify spatial memory function. We analysed GLP-1 and IL-6 level by ELISA and GLP-1R by RT-PCR. We found decreased spatial memory function in DM rats accompanied by decreased hippocampal GLP-1 and GLP-1R. Physical exercise promote memory function in DM rats associated with restoration of hippocampal GLP-1 or GLP-1R level. The GLP-1 level is associated with hippocampal IL-6 level. Continuous training slightly increases GLP-1 level while interval training can maintain expression of hippocampal GLP-1R in DM rats. Our findings suggest that physical exercise may promote memory function by slightly increase the level of hippocampal GLP-1 and maintaining expression hippocampal GLP-1R.
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Affiliation(s)
- T. Andraini
- Department of Medical Physiology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430, Indonesia
| | - J. Mardatillah
- Master’s Programme in Biomedical Sciences, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, 10430, Indonesia
| | - N.T. Kartinah
- Department of Medical Physiology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430, Indonesia
| | - N. Paramita
- Department of Medical Physiology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430, Indonesia
| | - D.I.S. Santoso
- Department of Medical Physiology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430, Indonesia
| | - S. Yolanda
- Department of Medical Physiology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430, Indonesia
| | - B.C. Puspasari
- Master’s Programme in Biomedical Sciences, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, 10430, Indonesia
| | - H. Rusli
- Master’s Programme in Biomedical Sciences, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. Jalan Salemba Raya No. 6 Jakarta Pusat, 10430, Indonesia
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Derkach KV, Sorokoumov VN, Bakhtyukov AA, Bondareva VM, Shpakov AO. Insulin and Leptin Levels in Blood and Brain Structures of Rats with Diet-Induced Obesity and the Effect of Various Drugs on Them. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022060187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Bayram P, Billur D, Kizil S, Caliskan H, Can B. Alterations in hippocampal neurogenesis and hippocampal insulin signaling pathway in rat with metabolic syndrome. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:1308-1316. [PMID: 36474571 PMCID: PMC9699955 DOI: 10.22038/ijbms.2022.64917.14295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 09/14/2022] [Indexed: 01/25/2023]
Abstract
OBJECTIVES We aimed to examine the level of hippocampal neurogenesis, and assess learning and anxiety and the level of some proteins involving insulin signaling pathways in rats with Metabolic Syndrome (MetS); and to reveal the relationship among them. MATERIALS AND METHODS Totally, 30 Wistar-albino rats were used. The rats were divided into three groups: Control, MetS, and MetS+Ins. Immunohistochemical staining was performed to evaluate the levels of neurogenesis markers; Doublecortin (DCX), Neuronal-Differentiation-1 (NeuroD1), Ki67, and Neuronal nuclear protein (NeuN). Then, cleaved caspase-3 and TUNEL labeling were performed to detect the level of apoptosis. Additionally, behavior tests were performed to evaluate the learning-memory levels and anxiety-like behaviors. Insulin, Insulin Receptor (IR), Insulin Receptor Substrate (IRS2), glucose transporter (GLUT)-3, and GLUT4 protein expression levels were analyzed to evaluate the possible changes in the insulin signaling pathway. RESULTS An increase in anxiety with memory deficiency was observed in MetS. In the hippocampus of MetS, an increase was detected in the level of apoptosis, whereas a decrease was detected in the expression level of the neurogenesis marker. Insulin secretion and IR levels decreased in hippocampal neurons. We observed that GLUT3 and GLUT4 levels increased because of the non-activated insulin signaling pathway. CONCLUSION We think that the insulin signaling pathway may have an effect on the decreased neurogenesis in the MetS group. So, the evaluation of the Mitogen-activated protein kinase (MAPK) pathway and the investigation of the effect of endoplasmic reticulum stress on this pathway will be among the targets of our future studies.
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Affiliation(s)
- Pinar Bayram
- Kafkas University, Faculty of Medicine, Department of Histology and Embryology, Kars, Turkey,Corresponding author: Pınar Bayram. Kafkas University, Medical Faculty, Department of Histology and Embryology, 36100, Kars, Turkey. Tel: +905439189849;
| | - Deniz Billur
- Ankara University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Sule Kizil
- Lokman Hekim University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Hasan Caliskan
- Balıkesir University, Faculty of Medicine, Department of Physiology, Balıkesir, Turkey
| | - Belgin Can
- Ankara University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
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Zakharova IO, Bayunova LV, Derkach KV, Ilyasov IO, Morina IY, Shpakov AO, Avrova NF. Effects of Intranasally Administered Insulin and Gangliosides on Hypothalamic Signaling and Expression of Hepatic Gluconeogenesis Genes in Rats with Type 2 Diabetes Mellitus. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022060072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Derkach KV, Bondareva VM, Shpakov AO. [Influence of intranasally administered insulin on metabolic and hormonal parameters in adult male rats, impaired due to three-day fasting in the early postnatal period]. BIOMEDITSINSKAIA KHIMIIA 2022; 68:263-271. [PMID: 36005844 DOI: 10.18097/pbmc20226804263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Temporary cessation or restriction of breastfeeding can lead to metabolic disorders in adulthood. However, data on the effect of fasting in the early postnatal period on the functions of the endocrine system in adulthood are rare and contradictory. Approaches for the correction of metabolic and hormonal disorders caused by premature cessation of breastfeeding have not been developed yet. The aim of the work was to study the metabolic and hormonal parameters and changes in the hormonal status of the gonadal and thyroid systems in 10-month-old male rats with interruption of breastfeeding on days P19-P21, as well as to evaluate the restorative effect on them of four weeks of treatment with intranasal insulin (II) administered in the postnatal period (P28-P55) or in adulthood (P183-P210). Lactation interruption has been induced by treatment of lactating females with bromocriptine (10 mg/day/rat, P19-P21). Male rats with temporary cessation of breastfeeding developed characteristic signs of the metabolic syndrome (obesity, dyslipidemia, impaired glucose tolerance, hyperleptinemia), decreased levels of testosterone and thyroid hormones (fT4, tT3) and weakened the synthesis of testosterone and thyroxine, stimulated respectively by GnRH and thyroliberin. This was due to a decrease in the sensitivity of the testes to luteinizing hormone (LH) and the thyroid gland to thyroid-stimulating hormone (TSH). Treatment with II in early ontogenesis reduced body weight and fat, improved lipid profile, sensitivity to insulin, leptin, LH and TSH, restored the levels of testosterone and thyroid hormones and their stimulation by releasing factors. Treatment with II in adulthood normalized the levels of testosterone, thyroid hormones, their stimulation by releasing factors, but had a little effect on metabolic and hormonal parameters. The obtained data point to a wide range of metabolic and hormonal disorders in adult male rats with the "neonatal" model of metabolic syndrome and to the effectiveness of various strategies for their correction using long-term II treatment.
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Affiliation(s)
- K V Derkach
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, Russia
| | - V M Bondareva
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, Russia
| | - A O Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, Russia; Faculty of Medicine, Saint Petersburg State University, Saint-Petersburg, Russia
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An Association between Insulin Resistance and Neurodegeneration in Zebrafish Larval Model ( Danio rerio). Int J Mol Sci 2022; 23:ijms23158290. [PMID: 35955446 PMCID: PMC9368350 DOI: 10.3390/ijms23158290] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Type 2 diabetes mellitus has recently been identified as a mediator of neurodegeneration. However, the molecular mechanisms have not been clearly elucidated. We aimed to investigate insulin resistance associated with neurodegenerative events in zebrafish larvae. Methods: Larvae aged 72 h-post-fertilization (hpf) were induced to insulin resistance by immersion in 250 nM insulin and were then reinduced with 100 nM insulin at 96 hpf. This model was validated by a glucose levels assay, qPCR analysis of selected genes (akt, pepck, zglut3 and claudin-5a) and Oil Red-O (ORO) staining of the yolk sac for lipid distribution. The association of insulin resistance and neurodegeneration was validated by malondialdehyde (MDA), glutathione (GSH) assays, and by integrating next-generation sequencing with database for annotation, visualization and integrated discovery (DAVID). Results: There was a significant increase in glucose levels at 180 min in the insulin-resistant group. However, it decreased at 400 min after the re-challenge. Insulin-signaling mediators, akt and pepck, were showed significantly downregulated up to 400 min after insulin immersion (p < 0.05). Meanwhile, claudin-5a assessed blood−brain barrier (BBB) integrity and showed significant deterioration after 400 min of post-insulin immersion. ORO staining remarked the increase in yolk sac size in the insulin-resistant group. After the confirmation of insulin resistance, MDA levels increased significantly in the insulin-resistant group compared to the control group in the following parameters. Furthermore, dysregulated MAPK- and Wnt/Ca2+-signaling pathways were observed in the insulin-resistant group, disrupting energy metabolism and causing BBB injury. Conclusions: We conclude that the insulin-resistant zebrafish larvae alter the metabolic physiology associated with neurodegeneration.
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Pipal KV, Mamtani M, Patel AA, Jaiswal SG, Jaisinghani MT, Kulkarni H. Susceptibility Loci for Type 2 Diabetes in the Ethnically Endogamous Indian Sindhi Population: A Pooled Blood Genome-Wide Association Study. Genes (Basel) 2022; 13:genes13081298. [PMID: 35893037 PMCID: PMC9331904 DOI: 10.3390/genes13081298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 12/10/2022] Open
Abstract
Type 2 diabetes (T2D) is a complex metabolic derangement that has a strong genetic basis. There is substantial population-specificity in the association of genetic variants with T2D. The Indian urban Sindhi population is at a high risk of T2D. The genetic basis of T2D in this population is unknown. We interrogated 28 pooled whole blood genomes of 1402 participants from the Diabetes In Sindhi Families In Nagpur (DISFIN) study using Illumina’s Global Screening Array. From a total of 608,550 biallelic variants, 140 were significantly associated with T2D after adjusting for comorbidities, batch effects, pooling error, kinship status and pooling variation in a random effects multivariable logistic regression framework. Of the 102 well-characterized genes that these variants mapped onto, 70 genes have been previously reported to be associated with T2D to varying degrees with known functional relevance. Excluding open reading frames, intergenic non-coding elements and pseudogenes, our study identified 22 novel candidate genes in the Sindhi population studied. Our study thus points to the potential, interesting candidate genes associated with T2D in an ethnically endogamous population. These candidate genes need to be fully investigated in future studies.
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Affiliation(s)
- Kanchan V. Pipal
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
| | - Manju Mamtani
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
- M&H Research, LLC, San Antonio, TX 78249, USA
| | - Ashwini A. Patel
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
| | - Sujeet G. Jaiswal
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
| | - Manisha T. Jaisinghani
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
| | - Hemant Kulkarni
- Lata Medical Research Foundation, Nagpur 440002, India; (K.V.P.); (M.M.); (A.A.P.); (S.G.J.); (M.T.J.)
- M&H Research, LLC, San Antonio, TX 78249, USA
- Correspondence:
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Mikhailova EV, Derkach KV, Shpakov AO, Romanova IV. Melanocortin 1 Receptors in the Hypothalamus of Mice within the Norm and in Diet-Induced Obesity. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022040263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zakharova IO, Bayunova LV, Derkach KV, Ilyasov IO, Shpakov AO, Avrova NF. Effects of Intranasally Administered Insulin and Gangliosides on Metabolic Parameters and Activity of the Hepatic Insulin System in Rats with Type 2 Diabetes Mellitus. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022020077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Derkach KV, Bakhtyukov AA, Basova NE, Zorina II, Shpakov AO. The Restorative Effect of Combined Insulin and C-Peptide Intranasal Administration on Hormonal Status and Hypothalamic Signaling in the Male Rat Model of Severe Short-Term Streptozotocin-Induced Diabetes. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s002209302203005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zakharova IO, Bayunova LV, Zorina II, Shpakov AO, Avrova NF. Insulin and Brain Gangliosides Prevent Metabolic Disorders Caused by Activation of Free Radical Reactions after Two-Vessel Ischemia–Reperfusion Injury to the Rat Forebrain. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022010240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vasileva SS, Tucker J, Siskind D, Eyles D. Does the gut microbiome mediate antipsychotic-induced metabolic side effects in schizophrenia? Expert Opin Drug Saf 2022; 21:625-639. [PMID: 35189774 DOI: 10.1080/14740338.2022.2042251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Second-generation antipsychotics (SGAs) are the most effective treatment for people with schizophrenia. Despite their effectiveness in treating psychotic symptoms, they have been linked to metabolic, cardiovascular and gastrointestinal side-effects. The gut microbiome has been implicated in potentiating symptoms of schizophrenia, response to treatment and medication-induced side effects and thus presents a novel target mediating second-generation antipsychotic-induced side effects in patients. AREAS COVERED This narrative review presents evidence from clinical and pre-clinical studies exploring the relationship between the gut microbiome, schizophrenia, second-generation antipsychotics and antipsychotic-induced side-effects. It also covers evidence for psychobiotic treatment as a potential supplementary therapy for people with schizophrenia. EXPERT OPINION The gut microbiome has the potential to mediate antipsychotic-induced side-effects in people with schizophrenia. Microbiome-focused treatments should be considered in combination with standard therapy in order to ameliorate debilitating drug-induced side effects, increase quality of life and potentially improve psychotic symptoms. Future studies should aim to collect not only microbiome data, but also metabolomic measures, dietary information and behavioral data.
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Affiliation(s)
| | - Jack Tucker
- Metro South Addiction and Mental Health Service, Metro South Health, Brisbane, Australia.,University of Queensland School of Clinical Medicine, Brisbane, Australia
| | - Dan Siskind
- Queensland Brain Institute, University of Queensland, Brisbane, Australia.,Metro South Addiction and Mental Health Service, Metro South Health, Brisbane, Australia.,University of Queensland School of Clinical Medicine, Brisbane, Australia.,Queensland Centre for Mental Health Research, Brisbane, Australia
| | - Darryl Eyles
- Queensland Brain Institute, University of Queensland, Brisbane, Australia.,Queensland Centre for Mental Health Research, Brisbane, Australia
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Hormonal and metabolic profiles of obese and nonobese type 2 diabetes patients: implications of plasma insulin, ghrelin, and vitamin D levels. Cardiovasc Endocrinol Metab 2022; 11:e0256. [PMID: 35098041 PMCID: PMC8789207 DOI: 10.1097/xce.0000000000000256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/26/2021] [Indexed: 12/25/2022]
Abstract
Type 2 diabetes (T2D) is associated with obesity whereas loss of weight is a feature of the disease; however, the two states are not mutually exclusive. Obesity is linked with changes in hormonal activity and overall body metabolism.
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22
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Anita NZ, Zebarth J, Chan B, Wu CY, Syed T, Shahrul D, Nguyen MM, Pakosh M, Herrmann N, Lanctôt KL, Swardfager W. Inflammatory markers in type 2 diabetes with vs. without cognitive impairment; a systematic review and meta-analysis. Brain Behav Immun 2022; 100:55-69. [PMID: 34808290 DOI: 10.1016/j.bbi.2021.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/01/2021] [Accepted: 11/13/2021] [Indexed: 12/15/2022] Open
Abstract
People with type 2 diabetes mellitus (T2DM) are at increased risk of mild cognitive impairment and dementia. Systemic inflammation has been proposed as a common risk factor. This study aimed to summarize the clinical data pertaining to peripheral blood inflammatory markers. We identified original peer-reviewed articles reporting blood inflammatory marker concentrations in groups of people with a T2DM diagnosis who have cognitive impairment (CI; including mild cognitive impairment, Alzheimer's disease, vascular cognitive impairment) vs. normal cognition (NC). Between-group standardized mean differences (SMD) were summarized in random effects meta-analyses. From 2108 records, data were combined quantitatively from 40 studies. Concentrations of interleukin-6 (IL-6; NCI/NNC = 934/3154, SMD 0.74 95% confidence interval [0.07, 1.42], Z5 = 2.15, p = 0.03; I2 = 98.08%), C-reactive protein (CRP; NCI/NNC = 1610/4363, SMD 0.80 [0.50, 1.11], Z14 = 5.25, p < 0.01; I2 = 94.59%), soluble vascular cell adhesion molecule-1 (sVCAM-1; NCI/NNC = 104/1063, SMD 1.64 95% confidence interval [0.21, 3.07], Z2 = 2.25, p = 0.02; I2 = 95.19%), and advanced glycation end products (AGEs; NCI/NNC = 227/317, SMD 0.84 95% confidence interval [0.41, 1.27], Z2 = 3.82, p < 0.01; I2 = 81.07%) were higher among CI groups compared to NC. Brain derived neurotropic factor (BDNF) concentrations were significantly lower in CI compared to NC (NCI/NNC = 848/2063, SMD -0.67 95% confidence interval [-0.99, -0.35], Z3 = -4.09, p < 0.01; I2 = 89.20%). Cognitive impairment among people with T2DM was associated with systemic inflammation and lower BDNF concentrations. These inflammatory characteristics support an increased inflammatory-vascular interaction associated with cognitive impairment in T2DM. PROSPERO (CRD42020188625).
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Affiliation(s)
- Natasha Z Anita
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada; University Health Network Toronto Rehabilitation Institute - Rumsey Centre Cardiac Rehabilitation, 347 Rumsey Rd, East York, Ontario M4G 2V6, Canada
| | - Julia Zebarth
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada; University Health Network Toronto Rehabilitation Institute - Rumsey Centre Cardiac Rehabilitation, 347 Rumsey Rd, East York, Ontario M4G 2V6, Canada
| | - Brian Chan
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada
| | - Che-Yuan Wu
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Taha Syed
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada
| | - Dinie Shahrul
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada
| | - Michelle M Nguyen
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada; University Health Network Toronto Rehabilitation Institute - Rumsey Centre Cardiac Rehabilitation, 347 Rumsey Rd, East York, Ontario M4G 2V6, Canada
| | - Maureen Pakosh
- Library & Information Services, University Health Network- Toronto Rehabilitation Institute, Toronto, Ontario, Canada
| | - Nathan Herrmann
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Krista L Lanctôt
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada; University Health Network Toronto Rehabilitation Institute - Rumsey Centre Cardiac Rehabilitation, 347 Rumsey Rd, East York, Ontario M4G 2V6, Canada
| | - Walter Swardfager
- Department of Pharmacology & Toxicology - University of Toronto, Medical Sciences Building, 1 King's College Circle Room 4207, Toronto, Ontario M5S 1A8, Canada; Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada; University Health Network Toronto Rehabilitation Institute - Rumsey Centre Cardiac Rehabilitation, 347 Rumsey Rd, East York, Ontario M4G 2V6, Canada.
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Pignalosa FC, Desiderio A, Mirra P, Nigro C, Perruolo G, Ulianich L, Formisano P, Beguinot F, Miele C, Napoli R, Fiory F. Diabetes and Cognitive Impairment: A Role for Glucotoxicity and Dopaminergic Dysfunction. Int J Mol Sci 2021; 22:ijms222212366. [PMID: 34830246 PMCID: PMC8619146 DOI: 10.3390/ijms222212366] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder characterized by hyperglycemia, responsible for the onset of several long-term complications. Recent evidence suggests that cognitive dysfunction represents an emerging complication of DM, but the underlying molecular mechanisms are still obscure. Dopamine (DA), a neurotransmitter essentially known for its relevance in the regulation of behavior and movement, modulates cognitive function, too. Interestingly, alterations of the dopaminergic system have been observed in DM. This review aims to offer a comprehensive overview of the most relevant experimental results assessing DA’s role in cognitive function, highlighting the presence of dopaminergic dysfunction in DM and supporting a role for glucotoxicity in DM-associated dopaminergic dysfunction and cognitive impairment. Several studies confirm a role for DA in cognition both in animal models and in humans. Similarly, significant alterations of the dopaminergic system have been observed in animal models of experimental diabetes and in diabetic patients, too. Evidence is accumulating that advanced glycation end products (AGEs) and their precursor methylglyoxal (MGO) are associated with cognitive impairment and alterations of the dopaminergic system. Further research is needed to clarify the molecular mechanisms linking DM-associated dopaminergic dysfunction and cognitive impairment and to assess the deleterious impact of glucotoxicity.
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Affiliation(s)
- Francesca Chiara Pignalosa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Antonella Desiderio
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Paola Mirra
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Cecilia Nigro
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Giuseppe Perruolo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Luca Ulianich
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Pietro Formisano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Claudia Miele
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-081-746-3248
| | - Raffaele Napoli
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
| | - Francesca Fiory
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
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A multidimensional functional fitness score has a stronger association with type 2 diabetes than obesity parameters in cross sectional data. PLoS One 2021; 16:e0245093. [PMID: 33544739 PMCID: PMC7864668 DOI: 10.1371/journal.pone.0245093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/22/2020] [Indexed: 11/19/2022] Open
Abstract
Objectives We examine here the association of multidimensional functional fitness with type 2 diabetes mellitus (T2DM) as compared to anthropometric indices of obesity such as body mass index (BMI) and waist to hip ratio (WHR) in a sample of Indian population. Research design and method We analysed retrospective data of 663 volunteer participants (285 males and 378 females between age 28 and 84), from an exercise clinic in which every participant was required to undergo a health related physical fitness (HRPF) assessment consisting of 15 different tasks examining 8 different aspects of functional fitness. Results The odds of being diabetic in the highest quartile of BMI were not significantly higher than that in the lowest quartile in either of the sexes. The odds of being a diabetic in the highest WHR quartile were significantly greater than the lowest quartile in females (OR = 4.54 (1.95, 10.61) as well as in males (OR = 3.81 (1.75, 8.3). In both sexes the odds of being a diabetic were significantly greater in the lowest quartile of HRPF score than the highest (males OR = 10.52 (4.21, 26.13); females OR = 10.50 (3.53, 31.35)). After removing confounding, the predictive power of HRPF was significantly greater than that of WHR. HRPF was negatively correlated with WHR, however for individuals that had contradicting HRPF and WHR based predictions, HRPF was the stronger predictor of T2DM. Conclusion The association of multidimensional functional fitness score with type 2 diabetes was significantly stronger than obesity parameters in a cross sectional self-selected sample from an Indian city.
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Sharma VK, Singh TG. Chronic Stress and Diabetes Mellitus: Interwoven Pathologies. Curr Diabetes Rev 2020; 16:546-556. [PMID: 31713487 DOI: 10.2174/1573399815666191111152248] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 09/25/2019] [Accepted: 10/27/2019] [Indexed: 12/15/2022]
Abstract
Stress threatens the homeostasis and mobilizes a plethora of adaptive physiological and behavioral changes via the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system. The HPA axis influences the pituitary gland, hypothalamus and adrenal gland via a complex set of positive and negative feedback system. The feedback system operates in a well regulated neuroendocrine manner to reestablish the threatened body equilibrium. The HPA axis secreted major product is a glucocorticoid (cortisol) which is kept within a physiologically optimal range and serves to accomplish the various physiological functions crucial for survival. In chronically stressed individuals dishabituation of HPA axis is followed by increased release of glucocorticoids and catecholamines. Higher secretion of glucocorticoids influences glucose metabolism by promoting gluconeogenesis in the liver, suppressing glucose uptake (adipocytes and skeletal muscles), promoting lipolysis in adipocytes, suppressing insulin secretion, inflicting insulin resistance and inflammation. These biological changes alter neuroendocrine mechanisms and lead to maladaptive congregation of events that form the underlying cause of development of Type 2 diabetes (T2D). The currently reviewed evidences advocate that targeting stress mediated hypersecretion of glucocorticoids may be a viable approach for the treatment of T2D and to reinstate glucose homeostasis.
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Affiliation(s)
- Vivek Kumar Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
- Department of Pharmacology, Government College of Pharmacy, Rohru, Distt. Shimla-171207, Himachal Pradesh, India
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Mikhailova EV, Romanova IV, Derkach KV, Vishnevskaya ON, Shpakov AO. The Effect of Diet-Induced and Melanocortin Obesity on Expression of Tryptophan Hydroxylase 2 in the Dorsal Raphe Nucleus and Ventral Tegmental Area in Mice. J EVOL BIOCHEM PHYS+ 2019. [DOI: 10.1134/s0022093019040057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Zakharova IO, Sokolova TV, Bayunova LV, Zorina II, Rychkova MP, Shpakov AO, Avrova NF. The Protective Effect of Insulin on Rat Cortical Neurons in Oxidative Stress and Its Dependence on the Modulation of Akt, GSK-3beta, ERK1/2, and AMPK Activities. Int J Mol Sci 2019; 20:ijms20153702. [PMID: 31362343 PMCID: PMC6696072 DOI: 10.3390/ijms20153702] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/20/2019] [Accepted: 07/24/2019] [Indexed: 12/14/2022] Open
Abstract
Insulin is a promising drug for the treatment of diseases associated with brain damage. However, the mechanism of its neuroprotective action is far from being understood. Our aim was to study the insulin-induced protection of cortical neurons in oxidative stress and its mechanism. Immunoblotting, flow cytometry, colorimetric, and fluorometric techniques were used. The insulin neuroprotection was shown to depend on insulin concentration in the nanomolar range. Insulin decreased the reactive oxygen species formation in neurons. The insulin-induced modulation of various protein kinase activities was studied at eight time-points after neuronal exposure to prooxidant (hydrogen peroxide). In prooxidant-exposed neurons, insulin increased the phosphorylation of GSK-3beta at Ser9 (thus inactivating it), which resulted from Akt activation. Insulin activated ERK1/2 in neurons 5–30 min after cell exposure to prooxidant. Hydrogen peroxide markedly activated AMPK, while it was for the first time shown that insulin inhibited it in neurons at periods of the most pronounced activation by prooxidant. Insulin normalized Bax/Bcl-2 ratio and mitochondrial membrane potential in neurons in oxidative stress. The inhibitors of the PI3K/Akt and MEK1/2/ERK1/2 signaling pathways and the AMPK activator reduced the neuroprotective effect of insulin. Thus, the protective action of insulin on cortical neurons in oxidative stress appear to be realized to a large extent through activation of Akt and ERK1/2, GSK-3beta inactivation, and inhibition of AMPK activity increased by neuronal exposure to prooxidant.
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Affiliation(s)
- Irina O Zakharova
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Tatiana V Sokolova
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Liubov V Bayunova
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Inna I Zorina
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Maria P Rychkova
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Alexander O Shpakov
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia
| | - Natalia F Avrova
- Department of Molecular Endocrinology and Neurochemistry, I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Thorez avenue, 44, Saint-Petersburg 194223, Russia.
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Kornyushin OV, Bakhtyukov AA, Zorina II, Toropova YG, Derkach KV, Berko OM, Todosenko MN, Litvinova LS, Shpakov AO, Galagudza MM. The Effect of Different Types of Bariatric Surgery on Metabolic and Hormonal Parameters in Rats with a Decompensated Form of Type II Diabetes Mellitus. ADVANCES IN GERONTOLOGY 2019. [DOI: 10.1134/s2079057019030081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Derkach K, Zakharova I, Zorina I, Bakhtyukov A, Romanova I, Bayunova L, Shpakov A. The evidence of metabolic-improving effect of metformin in Ay/a mice with genetically-induced melanocortin obesity and the contribution of hypothalamic mechanisms to this effect. PLoS One 2019; 14:e0213779. [PMID: 30870482 PMCID: PMC6417728 DOI: 10.1371/journal.pone.0213779] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 02/19/2019] [Indexed: 12/16/2022] Open
Abstract
In diet-induced obesity, metformin (MF) has weight-lowering effect and improves glucose homeostasis and insulin sensitivity. However, there is no information on the efficiency of MF and the mechanisms of its action in melanocortin-type obesity. We studied the effect of the 10-day treatment with MF at the doses of 200, 400 and 600 mg/kg/day on the food intake and the metabolic and hormonal parameters in female C57Bl/6J (genotype Ay/a) agouti-mice with melanocortin-type obesity, and the influence of MF on the hypothalamic signaling in obese animals at the most effective metabolic dose (600 mg/kg/day). MF treatment led to a decrease in food intake, the body and fat weights, the plasma levels of glucose, insulin and leptin, all increased in agouti-mice, to an improvement of the lipid profile and glucose sensitivity, and to a reduced fatty liver degeneration. In the hypothalamus of obese agouti-mice, the leptin and insulin content was reduced and the expression of the genes encoding leptin receptor (LepR), MC3- and MC4-melanocortin receptors and pro-opiomelanocortin (POMC), the precursor of anorexigenic melanocortin peptides, was increased. The activities of AMP-activated kinase (AMPK) and the transcriptional factor STAT3 were increased, while Akt-kinase activity did not change from control C57Bl/6J (a/a) mice. In the hypothalamus of MF-treated agouti-mice (10 days, 600 mg/kg/day), the leptin and insulin content was restored, Akt-kinase activity was increased, and the activities of AMPK and STAT3 were reduced and did not differ from control mice. In the hypothalamus of MF-treated agouti-mice, the Pomc gene expression was six times higher than in control, while the gene expression for orexigenic neuropeptide Y was decreased by 39%. Thus, we first showed that MF treatment leads to an improvement of metabolic parameters and a decrease of hyperleptinemia and hyperinsulinaemia in genetically-induced melanocortin obesity, and the specific changes in the hypothalamic signaling makes a significant contribution to this effect of MF.
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Affiliation(s)
- Kira Derkach
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Irina Zakharova
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Inna Zorina
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Andrey Bakhtyukov
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Irina Romanova
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Liubov Bayunova
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Alexander Shpakov
- Department of Molecular Endocrinology and Neurochemistry, Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
- * E-mail:
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The effect of peptide tyrosine tyrosine (PYY3–36), a selective Y2 receptor agonist on streptozotocin-induced diabetes in albino rats. Endocr Regul 2019; 53:26-33. [DOI: 10.2478/enr-2019-0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Abstract
Objective. The aim of the present study was to assess the effect of the PYY3–36, as a potential therapy for the type 2 diabetes mellitus (T2DM), induced by high fat diet (HFD) and an intraperitoneal (i.p.) administration of streptozotocin (STZ) in albino rats.
Methods. Forty adult male albino Wistar rats were divided into: 1) control group (C, in which the rats were fed with a standard diet and received vehicle; 2) diabetic group (D, in which T2DM was induced by feeding the rats with HFD for four weeks followed by a single i.p. injection of 35 mg/kg STZ, this group was also allowed to have HFD till the end of the study; and 3) D+PYY3–36 group (in which the diabetic rats were treated with 50 µg/kg i.p. PYY3–36 twice a day for one week). Food intake, water intake, body weight (b.w.), visceral fat weight (VFW), liver glycogen content, serum levels of glucose, insulin, and interleukin-6 (IL-6), were measured. Homeostatic-model assessment of insulin resistance (HOMA-IR) was estimated. The gene expression of the hypothalamic neuropeptide Y (NPY) and visceral nuclear factor kappa B (NF-κB) were assessed by a reverse transcription polymerase chain reaction (RT-PCR).
Results. The PYY3–36 administration to the diabetic group of rats significantly increased the serum insulin levels and liver glycogen content, decreased the body weight, VFW, food intake, water intake, serum levels of the glucose, IL-6, and HOMA-IR. It also decreased the expression of both the hypothalamic NPY and the visceral fat NF-κB.
Conclusion. With respect to the fact of improved insulin release and enhanced insulin sensitivity (an effect that may be mediated via suppressing accumulation of visceral fat and inflammatory markers), in the rats treated with PYY3–36, the PYY3–36 might be considered for the future as a promising therapeutic tool in T2DM.
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Ko JH, Rodriguez I, Joo SW, Kim HG, Lee YG, Kang TH, Baek NI. Synergistic Effect of Two Major Components of Malva verticillata in the Recovery of Alloxan-Damaged Pancreatic Islet Cells in Zebrafish. J Med Food 2019; 22:196-201. [DOI: 10.1089/jmf.2018.4235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Jung-Hwan Ko
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Isabel Rodriguez
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Sun-Woo Joo
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Hyoung-Geun Kim
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Yeong-Geun Lee
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Tong Ho Kang
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
| | - Nam-In Baek
- Department of Oriental Medicine Biotechnology, Graduate School of Biotechnology, Kyung Hee University, Yongin, Korea
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Shpakov AO, Derkach KV. Molecular Mechanisms of the Effects of Metformin on the Functional Activity of Brain Neurons. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s11055-018-0657-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Derkach KV, Sukhov IB, Bondareva VM, Shpakov AO. Effect of Metformin on Metabolic Parameters and Hypothalamic Signaling Systems in Rats with Obesity Induced by a High-Carbohydrate and High-Fat Diet. ADVANCES IN GERONTOLOGY 2018. [DOI: 10.1134/s2079057018030037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bayunova LV, Zorina II, Zakharova IO, Avrova NF. Insulin Increases Viability of Neurons in Rat Cerebral Cortex and Normalizes Bax/Bcl-2 Ratio under Conditions of Oxidative Stress. Bull Exp Biol Med 2018; 165:14-17. [DOI: 10.1007/s10517-018-4088-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Indexed: 10/16/2022]
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The Leptin, Dopamine and Serotonin Receptors in Hypothalamic POMC-Neurons of Normal and Obese Rodents. Neurochem Res 2018; 43:821-837. [PMID: 29397535 DOI: 10.1007/s11064-018-2485-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/20/2018] [Accepted: 01/24/2018] [Indexed: 12/18/2022]
Abstract
The pro-opiomelanocortin (POMC)-expressing neurons of the hypothalamic arcuate nucleus (ARC) are involved in the control of food intake and metabolic processes. It is assumed that, in addition to leptin, the activity of these neurons is regulated by serotonin and dopamine, but only subtype 2C serotonin receptors (5-HT2CR) was identified earlier on the POMC-neurons. The aim of this work was a comparative study of the localization and number of leptin receptors (LepR), types 1 and 2 dopamine receptors (D1R, D2R), 5-HT1BR and 5-HT2CR on the POMC-neurons and the expression of the genes encoding them in the ARC of the normal and diet-induced obese (DIO) rodents and the agouti mice (A y /a) with the melanocortin obesity. As shown by immunohistochemistry (IHC), all the studied receptors were located on the POMC-immunopositive neurons, and their IHC-content was in agreement with the expression of their genes. In DIO rats the number of D1R and D2R in the POMC-neurons and their expression in the ARC were reduced. In DIO mice the number of D1R and D2R did not change, while the number of LepR and 5-HT2CR was increased, although to a small extent. In the POMC-neurons of agouti mice the number of LepR, D2R, 5-HT1BR and 5-HT2CR was increased, and the D1R number was reduced. Thus, our data demonstrates for the first time the localization of different types of the serotonin and dopamine receptors on the POMC-neurons and a specific pattern of the changes of their number and expression in the DIO and melanocortin obesity.
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Shpakov AO. [Pharmacological approaches for correction of thyroid dysfunctions in diabetes mellitus]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2017; 63:219-231. [PMID: 28781255 DOI: 10.18097/pbmc20176303219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Thyroid diseases are closely associated with the development of types 1 and 2 diabetes mellitus (DM), and as a consequence, the development of effective approaches for their treatment is one of the urgent problems of endocrinology. Traditionally, thyroid hormones (TH) are used to correct functions of the thyroid system. However, they are characterized by many side effects, such as their negative effect on the cardiovascular system as well as the ability of TH to enhance insulin resistance and to disturb insulin-producing function of pancreas, exacerbating thereby diabetic pathology. Therefore, the analogues of TH, selective for certain types of TH receptors, that do not have these side effects, are being developed. The peptide and low-molecular weight regulators of thyroid-stimulating hormone receptor, which regulate the activity of the thyroid axis at the stage of TH synthesis and secretion in thyrocytes, are being created. Systemic and intranasal administration of insulin, metformin therapy and drugs with antioxidant activity are effective for the treatment of thyroid pathology in types 1 and 2 DM. In the review, the literature data and the results of own investigations on pharmacological approaches for the treatment and prevention of thyroid diseases in patients with types 1 and 2 DM are summarized and analyzed.
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Affiliation(s)
- A O Shpakov
- I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences
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Sukhov IB, Derkach KV, Chistyakova OV, Bondareva VM, Shpakov AO. The effect of prolonged intranasal administration of serotonin on the activity of hypothalamic signaling systems in male rats with neonatal diabetes. ACTA ACUST UNITED AC 2016. [DOI: 10.1134/s1990519x1604012x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Derkach KV, Sukhov IB, Kuznetsova LA, Buzanakov DM, Shpakov AO. The functional activity of hypothalamic signaling systems in rats with neonatal diabetes mellitus treated with metformin. DOKL BIOCHEM BIOPHYS 2016; 467:95-8. [PMID: 27193707 DOI: 10.1134/s1607672916020058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 11/23/2022]
Abstract
The effect of the two-month metformin treatment (200 mg/kg/day) of rats with the neonatal model of type 2 diabetes mellitus on the functional activity of hypothalamic signaling systems was studied. It was shown that metformin treatment restored the sensitivity of hypothalamic adenylyl cyclase signaling system to agonists of the type 4 melanocortin receptor and the type 2 dopamine receptor but did not influence significantly the functions of the insulin signaling system. These data suggest new targets and mechanisms of metformin action in the CNS, which may mediate its restoring effect on energy homeostasis impaired in diabetic pathology.
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Affiliation(s)
- K V Derkach
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Morisa Toreza 44, St. Petersburg, 194223, Russia
| | - I B Sukhov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Morisa Toreza 44, St. Petersburg, 194223, Russia
| | - L A Kuznetsova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Morisa Toreza 44, St. Petersburg, 194223, Russia
| | - D M Buzanakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Morisa Toreza 44, St. Petersburg, 194223, Russia
| | - A O Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Morisa Toreza 44, St. Petersburg, 194223, Russia.
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