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stress hormones; diabetes

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https://www.readbyqxmd.com/read/27913104/d-ala2-gip-glu-pal-is-neuroprotective-in-a-chronic-parkinson-s-disease-mouse-model-and-increases-bndf-expression-while-reducing-neuroinflammation-and-lipid-peroxidation
#1
Yanwei Li, WeiZhen Liu, Lin Li, Christian Hölscher
Type 2 diabetes mellitus (T2DM) is a risk factor for Parkinson's disease (PD). Therefore, treatment to improve insulin resistance in T2DM may be useful for PD patients. Glucose dependent insulinotropic polypeptide (GIP) is a member of the incretin hormone family that can promote insulin release and improve insulin resistance. Several GIP analogues have been developed as potential treatments for T2DM. We had shown previously that D-Ala2-GIP-glu-PAL, a novel long-acting GIP analogue, can play a neuroprotective role in the PD mouse model induced by acute MPTP injection...
November 29, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27908890/pathology-of-human-coronary-and-carotid-artery-atherosclerosis-and-vascular-calcification-in-diabetes-mellitus
#2
Kazuyuki Yahagi, Frank D Kolodgie, Christoph Lutter, Hiroyoshi Mori, Maria E Romero, Aloke V Finn, Renu Virmani
The continuing increase in the prevalence of diabetes mellitus in the general population is predicted to result in a higher incidence of cardiovascular disease. Although the mechanisms of diabetes mellitus-associated progression of atherosclerosis are not fully understood, at clinical and pathological levels, there is an appreciation of increased disease burden and higher levels of arterial calcification in these subjects. Plaques within the coronary arteries of patients with diabetes mellitus generally exhibit larger necrotic cores and significantly greater inflammation consisting mainly of macrophages and T lymphocytes relative to patients without diabetes mellitus...
December 1, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27899085/oestradiol-levels-and-superoxide-dismutase-activity-in-age-related-cataract-a-case-control-study
#3
Dragana Škiljić, Staffan Nilsson, Anne Petersen, Jan-Olof Karlsson, Anders Behndig, Lada Kalaboukhova, Madeleine Zetterberg
BACKGROUND: It has been suggested that the higher prevalence of cataract in women is caused by a withdrawal effect of oestrogen at menopause. In vitro studies have demonstrated protection of serum oestradiol (E2) against oxidative stress through upregulation of antioxidant enzymes, including superoxide dismutase (SOD). The purpose of the present study was to investigate E2 levels and SOD erythrocyte activity in patients with age-related cataract. METHODS: The studied subjects consisted of 103 patients with age-related cataract and 22 controls...
November 29, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27875946/the-role-of-sexual-dysfunction-and-infertility-on-reproductive-health-in-diabetics-pathogenesis-evaluation-and-management
#4
Jason Gandhi, Gautam Dagur, Kelly Warren, Noel Smith, Sardar Ali Khan
BACKGROUND: Uncontrolled or long-term diabetes mellitus is conducive to vascular and oxidative stress disturbances that impede several physiological systems, which may in turn elicit psychological symptoms. OBJECTIVE: We assess the sexual and hormonal complications of diabetes mellitus that impair reproductive function in males and females. METHOD: A comprehensive MEDLINE® search was guided using key words relevant to diabetes mellitus and reproductive health...
November 22, 2016: Current Diabetes Reviews
https://www.readbyqxmd.com/read/27874157/excision-of-oral-pyogenic-granuloma-in-a-diabetic-patient-with-940nm-diode-laser
#5
Maha A Al-Mohaya, Abdulaziz M Al-Malik
Pyogenic granuloma (PG) is a common, acquired, benign vascular reactive proliferation that typically develops as a small erythematous papule on the skin or oral mucosal surface. Oral PG is often caused by constant low-grade infection, minor trauma, poor oral hygiene, and due to hormonal disturbances. It shows a striking predilection for the gingiva. Lesions can be excised surgically with removal of the underlying causes. However, this modality may be associated with unnecessary complications. Recently, different laser wavelengths have been used for removal of oral PG...
December 2016: Saudi Medical Journal
https://www.readbyqxmd.com/read/27822713/dexamethasone-alters-the-appetite-regulation-via-induction-of-hypothalamic-insulin-resistance-in-rat-brain
#6
Ragitha Chruvattil, Shreya Banerjee, Sarmi Nath, Jatin Machhi, Gitika Kharkwal, Mange Ram Yadav, Sarita Gupta
Elevated levels of glucocorticoid, a steroid hormone released in response to stress, have been implicated in the pathophysiology of diabetes, which is now known to extend its effect on brain functions. Hence, we aimed to investigate the status of brain insulin signaling in response to dexamethasone (a synthetic glucocorticoid) treatment in female Charles Foster rat. This model exhibited pronounced hyperinsulinemia and glucose intolerance with loss in appetite and body weight. Immunoblotting of insulin receptor (INSR)-PI3kinase-AKT demonstrated reduced insulin signaling in hypothalamus but no change in hippocampus, cortex, and cerebellum in dexamethasone-treated rats as compared to vehicle-treated rats, signifying the diversity of distribution and function of insulin in different brain regions...
November 7, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27812350/possible-integrative-actions-of-leptin-and-insulin-signaling-in-the-hypothalamus-targeting-energy-homeostasis
#7
REVIEW
Mina Thon, Toru Hosoi, Koichiro Ozawa
Obesity has emerged as one of the most burdensome conditions in modern society. In this context, understanding the mechanisms controlling food intake is critical. At present, the adipocyte-derived hormone leptin and the pancreatic β-cell-derived hormone insulin are considered the principal anorexigenic hormones. Although leptin and insulin signal transduction pathways are distinct, their regulation of body weight maintenance is concerted. Resistance to the central actions of leptin or insulin is linked to the emergence of obesity and diabetes mellitus...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27810172/extracellular-vesicles-novel-mediators-of-cell-communication-in-metabolic-disease
#8
REVIEW
Isabel Huang-Doran, Chen-Yu Zhang, Antonio Vidal-Puig
Metabolic homeostasis emerges from the complex, multidirectional crosstalk between key metabolic tissues including adipose tissue, liver, and skeletal muscle. This crosstalk, traditionally mediated by hormones and metabolites, becomes dysregulated in human diseases such as obesity and diabetes. Extracellular vesicles (EVs; including exosomes) are circulating, cell-derived nanoparticles containing proteins and nucleic acids that interact with and modify local and distant cellular targets. Accumulating evidence, reviewed herein, supports a role for extracellular vesicles in obesity-associated metabolic disturbance, particularly the local and systemic inflammation characteristic of adipose and hepatic stress...
October 31, 2016: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/27785940/therapeutic-effects-of-blue-honeysuckle-on-lesions-of-hyperthyroidism-in-rats
#9
Sang-In Park, Young Joon Lee, Seong Hun Choi, Soo Jin Park, Chang-Hyun Song, Sae-Kwang Ku
Hyperthyroidism is a hypermetabolic syndrome characterized by an overproduction of thyroid hormones, which enhances the hormone-induced oxidative stress responsible for some complications in the liver, heart and muscle. Blue honeysuckle (BH) is an edible berry, rich in polyphenols, especially flavonoids or anthocyanins, known as strong antioxidants. The chemo-protective activities of the berry have been connected to the improvement of symptoms in cancer, diabetes mellitus, tumor or cardiovascular diseases. Therefore, the therapeutic effects of BH were examined in hyperthyroidism rat model...
2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27758705/diabetes-management-by-probiotics-current-knowledge-and-future-perspectives
#10
Aziz Homayouni Rad, Farnaz Sahhaf, Tohid Hassanalilou, Hanieh-Sadat Ejtahed, Negar Motayagheni, Ahmad-Reza Soroush, Mina Javadi, Amir Mohammad Mortazavian, Leila Khalili
BACKGROUND: Diabetes mellitus, a condition of multifactorial origin, is related to the intestinal microbiota by numerous molecular mechanisms. Controlling the vast increase in the prevalence of diabetes needs a natural and safe solution. Probiotics, known as live microorganisms that exert health benefits to the host, have anti-diabetic property. OBJECTIVE: This review will highlight the current evidences in probiotic effectiveness and future prospects for exploring probiotic therapy in the prevention and control of diabetes...
October 14, 2016: Current Diabetes Reviews
https://www.readbyqxmd.com/read/27730513/middle-aged-diabetic-females-and-males-present-distinct-susceptibility-to-alzheimer-disease-like-pathology
#11
E Candeias, A I Duarte, I Sebastião, M A Fernandes, A I Plácido, C Carvalho, S Correia, R X Santos, R Seiça, M S Santos, C R Oliveira, P I Moreira
Type 2 diabetes (T2D) is a highly concerning public health problem of the twenty-first century. Currently, it is estimated that T2D affects 422 million people worldwide with a rapidly increasing prevalence. During the past two decades, T2D has been widely shown to have a major impact in the brain. This, together with the cognitive decline and increased risk for dementia upon T2D, may arise from the complex interaction between normal brain aging and central insulin signaling dysfunction. Among the several features shared between T2D and some neurodegenerative disorders (e...
October 11, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27703473/gender-differences-in-adipocyte-metabolism-and-liver-cancer-progression
#12
Otto K-W Cheung, Alfred S-L Cheng
Liver cancer is the third most common cancer type and the second leading cause of deaths in men. Large population studies have demonstrated remarkable gender disparities in the incidence and the cumulative risk of liver cancer. A number of emerging risk factors regarding metabolic alterations associated with obesity, diabetes and dyslipidemia have been ascribed to the progression of non-alcoholic fatty liver diseases (NAFLD) and ultimately liver cancer. The deregulation of fat metabolism derived from excessive insulin, glucose, and lipid promotes cancer-causing inflammatory signaling and oxidative stress, which eventually triggers the uncontrolled hepatocellular proliferation...
2016: Frontiers in Genetics
https://www.readbyqxmd.com/read/27696667/the-anti-ageing-hormone-klotho-induces-nrf2-mediated-antioxidant-defences-in-human-aortic-smooth-muscle-cells
#13
Giuseppe Maltese, Paraskevi-Maria Psefteli, Benedetta Rizzo, Salil Srivastava, Luigi Gnudi, Giovanni E Mann, Richard C M Siow
Vascular ageing in conditions such as atherosclerosis, diabetes and chronic kidney disease, is associated with the activation of the renin angiotensin system (RAS) and diminished expression of antioxidant defences mediated by the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2). The anti-ageing hormone klotho promotes longevity and protects against cardiovascular and renal diseases. Klotho has been shown to activate Nrf2 and attenuate oxidative damage in neuronal cells, however, the mechanisms by which it protects against vascular smooth muscle cell VSMC dysfunction elicited by Angiotensin II (AngII) remain to be elucidated...
October 3, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27620696/proteomic-profiling-of-human-islets-collected-from-frozen-pancreata-using-laser-capture-microdissection
#14
Lina Zhang, Giacomo Lanzoni, Matteo Battarra, Luca Inverardi, Qibin Zhang
: The etiology of Type 1 Diabetes (T1D) remains elusive. Enzymatically isolated and cultured (EIC) islets cannot fully reflect the natural protein composition and disease process of in vivo islets, because of the stress from isolation procedures. In order to study islet protein composition in conditions close to the natural environment, we performed proteomic analysis of EIC islets, and laser capture microdissected (LCM) human islets and acinar tissue from fresh-frozen pancreas sections of three cadaveric donors...
January 6, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27562403/stress-hormone-release-is-a-key-component-of-the-metabolic-response-to-lipopolysaccharide-studies-in-hypopituitary-and-healthy-subjects
#15
Ermina Bach, Andreas B Møller, Jens O L Jørgensen, Mikkel H Vendelbo, Niels Jessen, Steen B Pedersen, Thomas S Nielsen, Niels Møller
OBJECTIVE: Acute and chronic inflammatory and metabolic responses are generated by lipopolysaccharide (LPS) during acute illness and in the pathogenesis of the metabolic syndrome, type 2 diabetes and cardiovascular disease, but whether these responses depend on intact pituitary release of hormones are not clearly identified. We compared the metabolic effects of LPS in hypopituitary patients (HPs) (in the absence of growth hormone (GH) and ACTH responses) and healthy control subjects (CTR) (with normal pituitary hormone responses)...
November 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27555288/palmitate-induced-endoplasmic-reticulum-stress-and-subsequent-c-ebp%C3%AE-homologous-protein-activation-attenuates-leptin-and-insulin-like-growth-factor-1-expression-in-the-brain
#16
Gurdeep Marwarha, Kate Claycombe, Jared Schommer, David Collins, Othman Ghribi
The peptide hormones Insulin-like growth factor-1 (IGF1) and leptin mediate a myriad of biological effects - both in the peripheral and central nervous systems. The transcription of these two hormones is regulated by the transcription factor C/EBPα, which in turn is negatively regulated by the transcription factor C/EBP Homologous Protein (CHOP), a specific marker of endoplasmic reticulum (ER) stress. In the peripheral system, disturbances in leptin and IGF-1 levels are implicated in a variety of metabolic diseases including obesity, diabetes, atherosclerosis and cardiovascular diseases...
November 2016: Cellular Signalling
https://www.readbyqxmd.com/read/27530317/ghrelin-gene-products-rescue-cultured-adult-rat-hippocampal-neural-stem-cells-from-high-glucose-insult
#17
Sehee Kim, Chanyang Kim, Seungjoon Park
Adult hippocampal neurogenesis is decreased in type 2 diabetes, and this impairment appears to be important in cognitive dysfunction. Previous studies suggest that ghrelin gene products (acylated ghrelin (AG), unacylated ghrelin (UAG) and obestatin (OB)) promote neurogenesis. Therefore, we hypothesize that ghrelin gene products may reduce the harmful effects of high glucose (HG) on hippocampal neural stem cells (NSCs). The aim of this study was to investigate the role of these peptides on the survival of cultured hippocampal NSCs exposed to HG insult...
October 2016: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/27511983/extrapancreatic-effects-of-incretin-hormones-evidence-for-weight-independent-changes-in-morphological-aspects-and-oxidative-status-in-insulin-sensitive-organs-of-the-obese-nondiabetic-zucker-rat-zfr
#18
Ides M Colin, Henri Colin, Ines Dufour, Charles-Edouard Gielen, Marie-Christine Many, Jean Saey, Bernard Knoops, Anne-Catherine Gérard
Incretin-based therapies are widely used to treat type 2 diabetes. Although hypoglycemic actions of incretins are mostly due to their insulinotropic/glucagonostatic effects, they may also influence extrapancreatic metabolism. We administered exendin-4 (Ex-4), a long-acting glucagon-like peptide receptor agonist, at low dose (0.1 nmol/kg/day) for a short period (10 days), in obese nondiabetic fa/fa Zucker rats (ZFRs). Ex-4-treated ZFRs were compared to vehicle (saline)-treated ZFRs and vehicle- and Ex-4-treated lean rats (LRs)...
August 2016: Physiological Reports
https://www.readbyqxmd.com/read/27499590/coronary-artery-disease-and-its-association-with-vitamin-d-deficiency
#19
REVIEW
Ramesh Aggarwal, Tauseef Akhthar, Sachin Kumar Jain
Coronary artery disease (CAD) has become the latest scourge of humankind and referred to in this article as CAD, is the end result of the accumulation of atheromatous plaques within the walls of coronary arteries that supply the myocardium, a process also known as atherosclerosis and manifests mostly in the form of chronic stable angina or acute coronary syndrome. Vitamin D has attracted considerable interest recently due to its role in a number of extraskeletal disease processes including multiple sclerosis, malignancies, diabetes mellitus, and CAD...
April 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/27498033/dehydroascorbic-acid-induced-endoplasmic-reticulum-stress-and-leptin-resistance-in-neuronal-cells
#20
Mina Thon, Toru Hosoi, Koichiro Ozawa
Due to its anti-obesity effects, an adipocyte-derived hormone, leptin, has become important for the treatment of obesity. However, most obese subjects are in a state of leptin resistance, and endoplasmic reticulum (ER) stress is suggested to be involved in the pathophysiology of leptin resistance. Dehydroascorbic acid (DHAA), an oxidized form of vitamin C, was found to be increased in diabetes. In the present study, we investigated the possible effects of DHAA on the activation of ER stress and leptin resistance...
September 16, 2016: Biochemical and Biophysical Research Communications
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