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Y-F Huang, Y Zhang, C-X Liu, J Huang, G-H Ding
OBJECTIVE: Hyperglycemia induces apoptosis of renal tubular epithelial cells and contributes to tubular injury in diabetic nephropathy. Angiotensin-converting enzyme 2 (ACE2) is known to protect against diabetic kidney injury. However, the mechanism for the dysregulation of ACE2 expression in diabetic nephropathy is unclear. MATERIALS AND METHODS: Bioinformatic analysis and luciferase reporter assay were done to identify ACE2-targeting microRNAs. Gain- and loss-of-function experiments were performed to determine the biological roles of the ACE2-targeting microRNAs in high glucose-induced damage to renal tubular epithelial cells...
October 2016: European Review for Medical and Pharmacological Sciences
Jason Gandhi, Gautam Dagur, Kelly Warren, Noel Smith, Sardar Ali Khan
BACKGROUND: Diabetes mellitus is a vastly prevalent metabolic disorder with escalating global health concerns. Particularly when mismanaged, chronic micro- and macrovascular complications may highly impair physiological systems while immunodeficiency disposes us to infection. OBJECTIVE: We investigate infections, localized complications, and neoplasms of the genitourinary system secondary to the chronic complications of diabetes mellitus in males and females. METHOD: A comprehensive MEDLINE® search was guided using key words relevant to diabetes mellitus and the genitourinary system...
October 19, 2016: Current Diabetes Reviews
Amal H Hamza, Widad M Al-Bishri, Laila A Damiati, Hanaa H Ahmed
BACKGROUND: The progresses made in stem cell therapy offer an innovative approach and exhibit great potential for the repair of damaged organs and tissues. This study was conducted with a view to find the mechanisms responsible for the effectiveness of bone marrow-derived mesenchymal stem cells (BM-MSCs) in the suppression of diabetes and experimentally-induced diabetic nephropathy. METHODS: To realize this objective, diabetic and diabetic nephropathy subject groups that underwent MSC treatment were studied through numerous biochemistry and molecular genetics analyses...
October 23, 2016: Renal Failure
Xiaocui Jiao, Ying Li, Tao Zhang, Maodong Liu, Yanqing Chi
The apoptosis of renal tubular epithelial cells contributes to the pathogenesis of diabetic nephropathy. High glucose-induced mitochondrial oxidative stress is considered to be an important mediator for renal tubular cell apoptosis. Sirtuin3(Sirt3), a kind of mitochondria-localized nicotinamide adenine dinucleotide(NAD(+))-dependent protein deacetylase, has been reported to regulate the generation of ROS in mitochondria through regulating acetylation level and activity of several key mitochondrial enzymes. In this study, we investigated the role of Sirt3 on high glucose-induced apoptosis in HK-2 cells...
October 20, 2016: Biochemical and Biophysical Research Communications
Julien Wils, Julie Favre, Jérémy Bellien
Diabetes induces a decrease in the number and function of different pro-angiogenic cells types generically designated as putative endothelial progenitor cells (EPC), which encompasses cells from myeloid origin that act in a paracrine fashion to promote angiogenesis and putative "true" EPC that contribute to endothelial replacement. This not only compromises neovasculogenesis in ischemic tissues but also impairs, at an early stage, the reendotheliziation process at sites of injury, contributing to the development of endothelial dysfunction and cardiovascular complications...
October 20, 2016: Pharmacology & Therapeutics
Alejandro R Chade, John E Hall
Obesity is largely responsible for the growing incidence and prevalence of diabetes, cardiovascular and renal diseases. Current strategies to prevent and treat obesity and its consequences have been insufficient to reverse the ongoing trends. Lifestyle modification or pharmacological therapies often produce modest weight loss which is not sustained and recurrence of obesity is frequently observed, leading to progression of target organ damage in many obese subjects. Therefore, research efforts have focused not only on the factors that regulate energy balance, but also on understanding mechanisms of target organ injury in obesity...
October 22, 2016: American Journal of Nephrology
Andreas Rohner, Jeannette D Widmer, Jennifer Klasen, Anita Scheiwiller, Dominik Muller, Markus K Muller
OBJECTIVE: The outcomes of patients undergoing band removal alone without an additional bariatric procedure after laparoscopic gastric banding are not well reported. We seek to close this gap in the literature. SETTING: Cantonal Hospital & University Teaching Hospital, Switzerland METHODS: In this retrospective study, we investigated 21 patients who underwent band removal with a mean follow-up of 63 months. Weight regain, co-morbidities, and quality of life were assessed...
September 14, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Ra-Yeong Choi, Ju Ri Ham, Mi-Kyung Lee
This study investigated the effects and mechanism of esculetin (6,7-dihydroxycoumarin) on non-alcoholic fatty liver in diabetic mice fed high-fat diet (HFD). The diabetic mice model was induced by injection of streptozotocin, after which they were fed HFD diet with or without esculetin for 11 weeks. Non-diabetic mice were provided a normal diet. Diabetes induced hepatic hypertrophy, lipid accumulation and droplets; however, esculetin reversed these changes. Esculetin treatment in diabetic mice fed HFD significantly down-regulated expression of lipid synthesis genes (Fasn, Dgat2 and Pap) and inflammation genes (Tlr4, Myd88, Nfkb, Tnfα and Il6)...
October 18, 2016: Chemico-biological Interactions
Nina Holland
Environmental research and public health in the 21st century face serious challenges such as increased air pollution and global warming, widespread use of potentially harmful chemicals including pesticides, plasticizers, and other endocrine disruptors, and radical changes in nutrition and lifestyle typical of modern societies. In particular, exposure to environmental and occupational toxicants may contribute to the occurrence of adverse birth outcomes, neurodevelopmental deficits, and increased risk of cancer and other multifactorial diseases such as diabetes and asthma...
October 21, 2016: Reviews on Environmental Health
Juan Rosas-Guzmán, Juan Rosas-Saucedo, Alma R J Romero-García
Type 2 Diabetes Mellitus (T2DM) is a chronic illness with high prevalence in Mexico, Latin-America, and the world and is associated to high morbidity, disability, and mortality rate, especially in developing countries. T2DM physiopathology is very complex; insulin resistance in the muscle, liver, and adipose tissue, a reduction in the production of incretins (mainly GLP-1) in the intestine, increased glucagon synthesis, an insufficient response of insulin generation, and increased glucose reabsorption in the kidney lead all together to an hyperglycemic state, which has been closely associated with the development of micro and macrovascular complications...
August 29, 2016: Reviews on Recent Clinical Trials
K Rygiel
Alzheimer's disease (AD) is a neurodegenerative disease, in which an accumulation of toxic amyloid beta in the brain precedes the emergence of clinical symptoms. AD spectrum consists of presymptomatic, early symptomatic, and symptomatic phase of dementia. At present, no pharmacotherapy exists to modify or reverse a course of AD, and only symptomatic treatments are available. Many elderly patients, diagnosed with multiple medical conditions (such as cardiovascular diseases, Type 2 diabetes mellitus, and cerebrovascular diseases) are at increased risk of the development of mild cognitive impairment (MCI), AD, and vascular dementia...
October 2016: Journal of Postgraduate Medicine
Andrew J Beamish, Torsten Olbers, Aaron S Kelly, Thomas H Inge
Obesity is a major global health problem, and its multisystem effects are inextricably linked with elevated cardiovascular risk and adverse outcomes. The cardiovascular benefits of reversing obesity in adults are well-established. Compared with other weight-loss strategies, programmes that incorporate bariatric surgery for weight loss are beneficial for sustained BMI reduction. A marked improvement in cardiovascular risk factors, including hypertension, dyslipidaemia, inflammation, and type 2 diabetes mellitus, has been observed after bariatric surgery...
October 20, 2016: Nature Reviews. Cardiology
FangFang, Hongyan Li, Tingting Qin, Min Li, Shiping Ma
The impaired insulin signaling has been recognized as a common pathogenetic mechanism between diabetes and Alzheimer's disease (AD). In the progression of AD, brain is characterized by defective insulin receptor substrate-1 (IRS-1) and increased oxidative stress. Thymol, a monoterpene phenol isolated from medicinal herbs, has exhibited robust neuroprotective effects. The present study was designed to investigate the protective effect of thymol on HFD-induced cognitive deficits, and explore the possible mechanisms...
October 20, 2016: Metabolic Brain Disease
Ross M Clark, Brittany Coffman, Paul G McGuire, Thomas R Howdieshell
BACKGROUND: Murine models of diabetes and obesity have provided insight into the pathogenesis of impaired epithelialization of excisional skin wounds. However, knowledge of postischemic myocutaneous revascularization in these models is limited. MATERIALS AND METHODS: A myocutaneous flap was created on the dorsum of wild type (C57BL/6), genetically obese and diabetic (ob/ob, db/db), complementary heterozygous (ob(+)/ob(-), db(+)/db(-)), and diet-induced obese (DIO) mice (n=48 total; five operative mice per strain and three unoperated mice per strain as controls)...
2016: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
Kesavan Balakumaran, Mosesbabu Janagili, Nagaraju Rajana, Sureshbabu Papureddy, Jayashree Anireddy
Alpha glucoside inhibitors used to treat type-2 diabetes mellitus (DM) are likely to be safe and effective. These agents are most effective for postprandial hyperglycemia. Miglitol is a type of drug used to treat type-2 DM. A simple, selective, linear, precise and accurate reversed-phase high-performance liquid chromatography (RP-HPLC) method was developed and validated for a related substance of miglitol and its identification, and characterization was done by different mass spectrometry techniques. The gradient method at a flow rate of 1...
October 14, 2016: Scientia Pharmaceutica
Suzanne Oparil
Heart disease, stroke, and kidney failure are leading causes of death worldwide, and hypertension is a significant risk factor for each. Hypertension is less common in women, compared to men, in those younger than 45 years of age. This trend is reversed in those 65 years and older. In the US between 2011-2014, the prevalence of hypertension in women and men by age group was 6% vs 8% (18-39 years), 30% vs 35% (40-59 years), and 67% vs 63% (60 years and over). Awareness, treatment, and control rates differ between genders with women being more aware of their diagnosis (85% vs 80%), more likely to take their medications (81% vs 71%) and more frequently having controlled hypertension (55% vs 49%)...
September 2016: Journal of Hypertension
Myung-Shik Lee
Low-grade systemic inflammation in adipose tissues or liver, is an important etiologic factor in insulin resistance. LPS is an important element causing such metabolic inflammation, and intestinal flora is considered a major source of systemic LPS. We studied changes of intestinal microbiota associated with high-fat diet (HFD) that causes insulin resistance and metabolic stress. 16S rRNA gene sequencing showed that HFD significantly decreased the abundance of a mucin-degrading bacterium Akkermansia muciniphila compared to control diet...
September 2016: Journal of Hypertension
Chang-Yun Yoon, Youn Kyung Kee, Young Eun Kwon, Jung Tak Park, Seung Hyeok Han, Shin-Wook Kang, Hyeon Chang Kim, Sungha Park, Tae-Hyun Yoo
OBJECTIVE: Regarding that lack of evidences about the role of SES predicting cardiovascular risks, we investigated the association between SES and parameters in ABPM in prospective cohort registry. DESIGN AND METHOD: The data was retrieved from the Cardiovascular and Metabolic Disease Etiology Research Center - High Risk Cohort (CMERC-HI, NCT02003781). Total 1,333 patients implementing ABPM were initially screened, then 9 patients with incomplete data and 178 patients with end-stage renal disease were excluded...
September 2016: Journal of Hypertension
Chang Wei-Ting, Chen Zhih-Cherng, Cheng Juei-Tang
OBJECTIVE: Despite the threatening risks of diabetes-induced cardiac fibrosis, less is known to whether diabetes causes an altered cardiac phenotype independent of coronary atherosclerosis. Peroxisome proliferator-activated receptor δ (PPARδ) emerges as a versatile regulator of metabolic and inflammatory homeostasis. Potentially PPARδ may be a therapeutic target for diabetes induced cardiac fibrosis. In the present study, we investigated the effectiveness of Telmisartan, a unique angiotensin receptor blocker (ARB) that increased the expression of PPARδ, in the improvement of left ventricular remodeling in both diabetic human and rats...
September 2016: Journal of Hypertension
ByungSu Yoo
Hypertension is the most common risk factor for systolic and diastolic heart failure. Based on population-attributable risks, hypertension has the greatest impact on the development of heart failure, accounting for 39% of HF events in men and 59% in women. Higher blood pressure, longer duration of hypertension and older age are associated with higher incidence of heart failure however, long term control of hypertension reduces the risk of heart failure. Thus current guideline pointed the hypertension as the single most important modifiable risk factor for heart failure...
September 2016: Journal of Hypertension
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