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Metformin Aging

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https://www.readbyqxmd.com/read/29452573/the-effect-of-metformin-treatment-in-obese-insulin-resistant-patients-with-euthyroid-goiter
#1
Nicoleta Răcătăianu, Sorana Daniela Bolboacă, Adela-Viviana Sitar-Tăut, Smaranda Mârza, Daniela Moga, Ana Valea, Cristina Ghervan
Objective The study's objective was to evaluate the thyroid parameters in obese insulin-resistant patients with euthyroid diffuse or nodular goiter, following Metformin treatment. Patients and methods The study was experimental, open, and prospective. Fifty-three patients aged 18-68 were enrolled for two years. Obese insulin-resistant patients (cut-off Homeostasis-Model-Assessment of Insulin Resistance-HOMA-IR ≥ 2.5) with euthyroid nodular/diffuse goiter were included. Subjects with diabetes, hypo-/hyper-thyroidism, autoimmune thyroiditis, psychiatric disorders, liver or heart failure were excluded...
February 16, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29426000/d-galactose-induces-premature-senescence-of-lens-epithelial-cells-by-disturbing-autophagy-flux-and-mitochondrial-functions
#2
Yao Xu, Yong Li, Limei Ma, Guang Xin, Zeliang Wei, Zhi Zeng, Zhihua Xing, Shiyi Li, Hai Niu, Wen Huang
Cataract is the leading cause of blindness with an estimated 16 million people affected worldwide. d-Galactose (d-gal) is a reducing sugar that widely distributed in foodstuffs, and studies show that d-gal could promote cataract formation by damaging nature lens epithelial cells (LECs). However, the underlying mechanism is unclear. In our present study, d-gal resulted in premature senescence of LECs, which was confirmed by determining the β-galactosidase activity, cell proliferative potential and cell cycle distribution, though apoptosis of LECs was not observed...
February 6, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29419672/pulse-pressure-and-diabetes-treatments-blood-pressure-and-pulse-pressure-difference-among-glucose-lowering-modality-groups-in-type-2-diabetes
#3
Hamid Alemi, Pegah Khaloo, Mohammad Ali Mansournia, Soghra Rabizadeh, Salome Sadat Salehi, Hossein Mirmiranpour, Neda Meftah, Alireza Esteghamati, Manouchehr Nakhjavani
Type 2 diabetes is associated with higher pulse pressure. In this study, we assessed and compared effects of classic diabetes treatments on pulse pressure (PP), systolic blood pressure (SBP), and diastolic blood pressure (DBP) in patients with type 2 diabetes.In a retrospective cohort study, 718 non-hypertensive patients with type 2 diabetes were selected and divided into 4 groups including metformin, insulin, glibenclamide+metformin, and metformin+insulin. They were followed for 4 consecutive visits lasting about 45...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29416677/identification-of-human-age-associated-gene-co-expressions-in-functional-modules-using-liquid-association
#4
Jialiang Yang, Yufang Qin, Tiantian Zhang, Fayou Wang, Lihong Peng, Lijuan Zhu, Dawei Yuan, Pan Gao, Jujuan Zhuang, Zhongyang Zhang, Jun Wang, Yun Fang
Aging is a major risk factor for age-related diseases such as certain cancers. In this study, we developed Age Associated Gene Co-expression Identifier (AAGCI), a liquid association based method to infer age-associated gene co-expressions at thousands of biological processes and pathways across 9 human tissues. Several hundred to thousands of gene pairs were inferred to be age co-expressed across different tissues, the genes involved in which are significantly enriched in functions like immunity, ATP binding, DNA damage, and many cancer pathways...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29416195/assessment-of-pharmacological-responses-to-an-anti-diabetic-drug-in-a-new-obese-type-2-diabetic-rat-model
#5
Yasutaka Murai, Takeshi Ohta, Hironobu Tadaki, Katsuhiro Miyajima, Masami Shinohara, Fatchiyah Fatchiyah, Takahisa Yamada
Introduction: The number of diabetic patients has recently been increasing worldwide, and numerous anti-diabetic drugs have been developed to induce good glycemic control. In particular, metformin, which exhibits glucose-lowering effects by suppressing gluconeogenesis in the liver, is widely used as a first line oral anti-diabetic drug for type 2 diabetes mellitus. Material and Methods: In this study, the pharmacological effects of metformin were investigated using female and male Spontaneously Diabetic Torii (SDT) fatty rats, a new obese type 2 diabetic model...
December 2017: Medical Archives
https://www.readbyqxmd.com/read/29412502/the-role-of-metformin-and-statins-in-the-incidence-of-epithelial-ovarian-cancer-in-type-2-diabetes-a-cohort-and-nested-case-control-study
#6
Elina Urpilainen, Mikko Marttila, Ari Hautakoski, Martti Arffman, Reijo Sund, Pirjo Ilanne-Parikka, Reetta Arima, Jenni Kangaskokko, Ulla Puistola, Esa Läärä, Marianne Hinkula
OBJECTIVE: To obtain evidence of the effects of metformin and statins on the incidence of ovarian cancer in women with type 2 diabetes (T2D). DESIGN: A retrospective cohort study and nested case-control study. SETTING: The data were obtained from a diabetes database (FinDM) combining information from several nationwide registers. POPULATION: A cohort of 137 643 women over 40 years old and diagnosed with T2D during 1996 through 2011 in Finland...
February 7, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29409112/prognostic-factors-for-resected-non-small-cell-lung-cancer-in-patients-with-type-2-diabetes-mellitus
#7
Woo Sik Yu, Chang Young Lee, Seong Yong Park, Jee Won Suh, Kyoung Shik Narm, Dae Joon Kim, Kyung Young Chung, Jin Gu Lee
BACKGROUND: For diabetic patients with lung cancer, blood glucose levels and medications such as metformin and statins may influence survival. OBJECTIVES: This study aimed to determine prognostic survival factors for diabetic patients with resected non-small cell lung cancer. PATIENTS AND METHODS: Between January 2005 and December 2013, 301 patients with type 2 diabetes mellitus who underwent curative resection for non-small cell lung cancer were identified and reviewed retrospectively...
February 6, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29397376/semaglutide-versus-dulaglutide-once-weekly-in-patients-with-type-2-diabetes-sustain-7-a-randomised-open-label-phase-3b-trial
#8
Richard E Pratley, Vanita R Aroda, Ildiko Lingvay, Jörg Lüdemann, Camilla Andreassen, Andrea Navarria, Adie Viljoen
BACKGROUND: Despite common mechanisms of actions, glucagon-like peptide-1 receptor agonists differ in structure, pharmacokinetic profile, and clinical effects. This head-to-head trial compared semaglutide with dulaglutide in patients with inadequately controlled type 2 diabetes. METHODS: This was an open-label, parallel-group, phase 3b trial done at 194 hospitals, clinical institutions or private practices in 16 countries. Eligible patients were aged 18 years or older and had type 2 diabetes with HbA1c 7·0-10·5% (53·0-91·0 mmol/mol) on metformin monotherapy...
January 31, 2018: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29396969/impact-of-type-2-diabetes-and-metformin-use-on-vitamin-b12-associated-biomarkers-an-observational-study
#9
Corina Metaxas, Chantal Zurwerra, Gottfried Rudofsky, Kurt E Hersberger, Philipp N Walter
AIMS: Assessment of the impact of type 2 diabetes (T2DM) and metformin use on vitamin B12 (VB12) associated biomarkers and their suitability to represent VB12 supply. METHODS: Differences of VB12, holotranscobalamine (HoloTc), the biologically active fraction  (%AB12)=HoloTc/VB12*100 and homocystein (Hcy) were analysed i) among diabetic outpatients with (DMMet+ ) and without metformin use (DMMet-) and ii) in comparison to an external non-diabetic reference group with low VB12 (<200 pmol/L)...
February 2, 2018: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29390570/impact-of-metformin-on-serum-prostate-specific-antigen-levels-data-from-the-national-health-and-nutrition-examination-survey-2007-to-2008
#10
Jee Soo Park, Kwang Suk Lee, Won Sik Ham, Byung Ha Chung, Kyo Chul Koo
PURPOSE: A possible association between metformin use and the development of prostate cancer (PCa) has been reported. However, there is limited information on the impact of long-term metformin use on serum prostate-specific antigen (PSA) levels. We investigated the association between exposure to metformin and PSA levels among diabetic patients who were not previously diagnosed with PCa. METHODS: The analytic sample consisted of 1363 US men aged above 40 in the National Health and Nutrition Examination Survey 2007 to 2008 cycle...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29385156/combination-cox-2-inhibitor-and-metformin-attenuate-rate-of-joint-replacement-in-osteoarthritis-with-diabetes-a-nationwide-retrospective-matched-cohort-study-in-taiwan
#11
Chieh-Hua Lu, Chi-Hsiang Chung, Chien-Hsing Lee, Chang-Hsun Hsieh, Yi-Jen Hung, Fu-Huang Lin, Chang-Huei Tsao, Po-Shiuan Hsieh, Wu-Chien Chien
BACKGROUND: Osteoarthritis (OA) is the most common form of arthritis associated with an increased prevalence of type 2 diabetes mellitus (T2DM), however their impact on decreasing joint replacement surgery has yet to be elucidated. This study aimed to investigate if the combination of COX-2 inhibitor and metformin therapy in OA with T2DM were associated with lower the rate of joint replacement surgery than COX-2 inhibitor alone. METHODS: In total, 968 subjects with OA and T2DM under COX-2 inhibitor and metformin therapy (case group) between 1 January to 31 December 2000 were selected from the National Health Insurance Research Database of Taiwan, along with 1936 patients were the 1:2 gender-, age-, and index year-controls matched without metformin therapy (control group) in this study...
2018: PloS One
https://www.readbyqxmd.com/read/29383869/metformin-regulates-metabolic-and-nonmetabolic-pathways-in-skeletal-muscle-and-subcutaneous-adipose-tissues-of-older-adults
#12
Ameya S Kulkarni, Erika F Brutsaert, Valentin Anghel, Kehao Zhang, Noah Bloomgarden, Michael Pollak, Jessica C Mar, Meredith Hawkins, Jill P Crandall, Nir Barzilai
Administration of metformin increases healthspan and lifespan in model systems, and evidence from clinical trials and observational studies suggests that metformin delays a variety of age-related morbidities. Although metformin has been shown to modulate multiple biological pathways at the cellular level, these pleiotropic effects of metformin on the biology of human aging have not been studied. We studied ~70-year-old participants (n = 14) in a randomized, double-blind, placebo-controlled, crossover trial in which they were treated with 6 weeks each of metformin and placebo...
January 31, 2018: Aging Cell
https://www.readbyqxmd.com/read/29379988/aberrant-intestinal-microbiota-in-individuals-with-prediabetes
#13
Kristine H Allin, Valentina Tremaroli, Robert Caesar, Benjamin A H Jensen, Mads T F Damgaard, Martin I Bahl, Tine R Licht, Tue H Hansen, Trine Nielsen, Thomas M Dantoft, Allan Linneberg, Torben Jørgensen, Henrik Vestergaard, Karsten Kristiansen, Paul W Franks, Torben Hansen, Fredrik Bäckhed, Oluf Pedersen
AIMS/HYPOTHESIS: Individuals with type 2 diabetes have aberrant intestinal microbiota. However, recent studies suggest that metformin alters the composition and functional potential of gut microbiota, thereby interfering with the diabetes-related microbial signatures. We tested whether specific gut microbiota profiles are associated with prediabetes (defined as fasting plasma glucose of 6.1-7.0 mmol/l or HbA1c of 42-48 mmol/mol [6.0-6.5%]) and a range of clinical biomarkers of poor metabolic health...
January 29, 2018: Diabetologia
https://www.readbyqxmd.com/read/29379326/effect-of-combined-gliclazide-metformin-treatment-on-oxidative-stress-lipid-profile-and-hepatorenal-functions-in-type-2-diabetic-patients
#14
Mansour Alsharidah, Metab Algeffari, Abdel-Moneim Hafez Abdel-Moneim, Mohamed Faisal Lutfi, Haila Alshelowi
Background: Type 2 diabetes is a chronic condition that requires pharmacotherapy interventions. Metformin and gliclazide are widely used drugs in monotherapy. However, their complementary action made utilization of the combination of these drugs an appealing approach. Aims: The study compared major therapeutic potentials of combined metformin/gliclazide treatment over metformin monotherapy based on the following parameters: oxidative stress, lipid profile, and hepatorenal functions...
January 2018: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/29375082/efficacy-and-safety-of-sodium-glucose-cotransporter-2-inhibitors-as-add-on-to-metformin-and-sulfonylurea-treatment-for-the-management-of-type-2-diabetes-a-meta-analysis
#15
Jian Li, Ying-Hong Shao, Xiao-Gang Wang, Yanping Gong, Chunlin Li, Yanhui Lu
This study evaluates the efficacy and safety of sodium-glucose cotransporter 2 (SGLT2) inhibitors as add-on to metformin and sulfonylurea treatment for type 2 diabetes management. The literature search was conducted in electronic databases and meta-analyses of mean differences in the changes from baseline in selected disease endpoints (efficacy endpoints) or odds ratios (for safety endpoints) were performed to compare outcomes between SGLT2 inhibitor- and placebo-/comparator-treatments. Seven studies (5,143 patients; age 56...
January 27, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29372032/protective-effect-of-metformin-on-d-galactose-induced-aging-model-in-mice
#16
Iman Fatemi, Amin Khaluoi, Ayat Kaeidi, Ali Shamsizadeh, Sara Heydari, Mohammad Aa Allahtavakoli
Objectives: Metformin (Met), an antidiabetic biguanide, reduces hyperglycemia via improving glucose utilization and reducing the gluconeogenesis. Met has been shown to exert neuroprotective, antioxidant and anti-inflammatory properties. The present study investigated the possible effect of Met on the D-galactose (D-gal)-induced aging in mice. Materials and Methods: Met (1 and 10 mg/kg/p.o.), was administrated daily in D-gal-received (500 mg/kg/p.o.) mice model of aging for six weeks...
January 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29368615/glitazones-and-alpha-glucosidase-inhibitors-as-the-second-line-oral-anti-diabetic-agents-added-to-metformin-reduce-cardiovascular-risk-in-type-2-diabetes-patients-a-nationwide-cohort-observational-study
#17
Cheng-Wei Chan, Chu-Leng Yu, Jiunn-Cherng Lin, Yu-Cheng Hsieh, Che-Chen Lin, Chen-Ying Hung, Cheng-Hung Li, Ying-Chieh Liao, Chu-Pin Lo, Jin-Long Huang, Ching-Heng Lin, Tsu-Juey Wu
OBJECTIVE: Metformin is the standard first-line drug for patients with Type 2 diabetes (T2DM). However, the optimal second-line oral anti-diabetic agent (ADA) remains unclear. We investigated the cardiovascular risk of various ADAs used as add-on medication to metformin in T2DM patients from a nationwide cohort. METHODS: T2DM patients using different add-on oral ADAs after an initial metformin therapy of > 90 days were identified from the Taiwan National Health Insurance Database...
January 24, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29366775/metformin-regulates-mitochondrial-biogenesis-and-senescence-through-ampk-mediated-h3k79-methylation-relevance-in-age-associated-vascular-dysfunction
#18
Santosh Karnewar, Praveen Kumar Neeli, Devayani Panuganti, Sasikumar Kotagiri, Sreevidya Mallappa, Nishant Jain, Mahesh Kumar Jerald, Srigiridhar Kotamraju
Endothelial senescence in conjunction with mitochondrial dysfunction orchestrates age-associated cardiovascular disorders. In this study we investigated the causal link between these two processes and studied the molecular mechanisms by which metformin acts to coordinate the delay of endothelial senescence via enhancing mitochondrial biogenesis/function. AMPK activators metformin and AICAR delayed endothelial senescence via SIRT1-mediated upregulation of DOT1L, leading to increased trimethylation of H3K79 (H3K79me3)...
January 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29362254/incremental-predictive-value-of-screening-for-anxiety-and-depression-beyond-current-type-2-diabetes-risk-models-a-prospective-cohort-study
#19
Evan Atlantis, Shima Ghassem Pour, Federico Girosi
OBJECTIVES: We sought to determine whether screening for anxiety and depression, an emerging risk factor for type 2 diabetes (T2D), adds clinically meaningful information beyond current T2D risk assessment tools. DESIGN: Prospective cohort. PARTICIPANTS AND SETTING: The 45 and Up Study is a large-scale prospective cohort of men and women aged 45 years and over, randomly sampled from the general population of New South Wales, Australia. 51 588 participants without self-reported diabetes at baseline (2006-2009) were followed up for approximately 3 years (2010)...
January 23, 2018: BMJ Open
https://www.readbyqxmd.com/read/29352482/influence-of-pharmacogenetic-polymorphisms-and-demographic-variables-on-metformin-pharmacokinetics-in-an-admixed-brazilian-cohort
#20
Ana Beatriz Santoro, Mariana Rodrigues Botton, Claudio José Struchiner, Guilherme Suarez-Kurtz
AIM: To identify pharmacogenetic and demographic variables that influence the systemic exposure to metformin in an admixed Brazilian cohort. METHODS: The extreme discordant phenotype was used to select 106 data sets from nine metformin bioequivalence trials, comprising 256 healthy adults. Eleven single-nucleotide polymorphisms in SLC22A1, SLC22A2, SLC47A1 SLC47A2 and in transcription factor SP1 were genotyped and a validated panel of ancestry informative markers was used to estimate the individual proportions of biogeographical ancestry...
January 20, 2018: British Journal of Clinical Pharmacology
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