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https://www.readbyqxmd.com/read/28648615/structural-biology-and-the-design-of-new-therapeutics-from-hiv-and-cancer-to-mycobacterial-infections
#1
REVIEW
Sherine E Thomas, Vitor Mendes, So Yeon Kim, Sony Malhotra, Bernardo Ochoa-Montaño, Michal Blaszczyk, Tom L Blundell
Interest in applications of protein crystallography to medicine was evident as the first high-resolution structures emerged in the 50s and 60s. In Cambridge Max Perutz and John Kendrew sought to understand mutations in sickle cell and other genetic diseases related to haemoglobin, while in Oxford the group of Dorothy Hodgkin became interested in long-lasting zinc-insulin crystals for treatment of diabetes and later considered insulin redesign as synthetic insulins became possible. The use of protein crystallography in structure-guided drug discovery emerged as enzyme structures allowed the identification of potential inhibitor-binding sites and optimisation of interactions of hits using the structure of the target protein...
June 22, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28648506/the-role-of-glis3-in-thyroid-disease-as-part-of-a-multisystem-disorder
#2
REVIEW
P Dimitri
Congenital hypothyroidism is the most common hereditary endocrine disorder. In a small number of cases, mutations have been identified that are associated with maldevelopment and maldescent of the thyroid. Some of these mutations present as syndromes with a multisystem phenotype such as NKX2-1, PAX8, and FOXE. The association of permanent neonatal diabetes and congenital hypothyroidism was first reported in 2003 and subsequently led to the identification GLIS3 as the mutation responsible for this presentation...
March 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28643849/prevalence-of-exposure-of-heavy-metals-and-their-impact-on-health-consequences
#3
Kanwal Rehman, Fiza Fatima, Iqra Waheed, Muhammad Sajid Hamid Akash
Even in the current era of growing technology, the concentration of heavy metals present in drinking water is still not within the recommended limits as set by the regulatory authorities in different countries of the world. Drinking water contaminated with heavy metals namely; arsenic, cadmium, nickel, chromium, mercury, chromium, zinc and lead is becoming a major health concern for public and health care professionals. Occupational exposure to heavy metals is known to occur by the utilization of these metals in various industrial processes and/or contents including color pigments and alloys...
June 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28635330/multiple-functions-of-insulin-degrading-enzyme-a-metabolic-crosslight
#4
Grazia R Tundo, Diego Sbardella, Chiara Ciaccio, Giuseppe Grasso, Magda Gioia, Andrea Coletta, Fabio Polticelli, Donato Di Pierro, Danilo Milardi, Peter Van Endert, Stefano Marini, Massimo Coletta
Insulin-degrading enzyme (IDE) is a ubiquitous zinc peptidase of the inverzincin family, which has been initially discovered as the enzyme responsible for insulin catabolism; therefore, its involvement in the onset of diabetes has been largely investigated. However, further studies on IDE unraveled its ability to degrade several other polypeptides, such as β-amyloid, amylin, and glucagon, envisaging the possible implication of IDE dys-regulation in the "aggregopathies" and, in particular, in neurodegenerative diseases...
June 21, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28632927/prospective-associations-between-environmental-heavy-metal-exposure-and-renal-outcomes-in-adults-with-chronic-kidney-disease
#5
Chun-Chieh Tsai, Chia-Lin Wu, Chew-Teng Kor, Ie-Bin Lian, Chin-Hua Chang, Teng-Hsiang Chang, Chia-Chu Chang, Ping-Fang Chiu
BACKGROUND: In Taiwan, Changhua County residents were exposed to high heavy metal pollution and exhibited high heavy metal levels in blood and urine. We examined associations between heavy metals in residential soil and renal outcomes of residents with chronic kidney disease (CKD). METHOD: From January 01, 2003 to June 30, 2015, we retrospectively identified CKD patients with an estimated glomerular filtration rate of <60 mL/min/1.73 m(2) at one tertiary care center...
June 20, 2017: Nephrology
https://www.readbyqxmd.com/read/28629083/effects-on-insulin-adsorption-due-to-zinc-and-strontium-substitution-in-hydroxyapatite
#6
Luisa A Scudeller, Elena Mavropoulos, Marcelo N Tanaka, Andrea M Costa, Carolina A C Braga, Elvis O López, Alexandre Mello, Alexandre M Rossi
Insulin-loaded calcium phosphate nanoparticles have been proposed as a potential drug delivery system for the oral treatment of diabetes and to stimulate bone cell proliferation and bone mineralization. The kinetics of insulin incorporation onto hydroxyapatite (HA) and Sr (SrHA)- and Zn (ZnHA)-substituted hydroxyapatite nanoparticles was investigated using X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, zeta potential measurements and circular dichroism (CD) spectroscopy...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28618722/antioxidants-status-in-type-2-diabetic-patients-in-morocco
#7
Rachid Eljaoudi, Naoual Elomri, Meryem Laamarti, Yahia Cherrah, Taoufik Amezyane, Driss Ghafir, Azeddine Ibrahimi
BACKGROUND/AIM: Type 2 diabetes is a heterogeneous and multifactorial metabolic disorder with some relationship to oxidative stress (OS). Since no studies were conducted in the Moroccan population, this clinical investigation aimed at evaluating the antioxidants status in Moroccan patients with type 2 diabetes. MATERIALS AND METHODS: Blood samples of 60 type 2 diabetic patients and 40 healthy controls subjects were analyzed for determination of glycemia, hemoglobin, CRP, glycated hemoglobin, lipid parameters, malondialdehyde (MDA), vitamins E and C, copper (Cu), zinc (Zn), and selenium (Se)...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28613416/topical-antimicrobial-agents-for-treating-foot-ulcers-in-people-with-diabetes
#8
REVIEW
Jo C Dumville, Benjamin A Lipsky, Christopher Hoey, Mario Cruciani, Marta Fiscon, Jun Xia
BACKGROUND: People with diabetes are at high risk for developing foot ulcers, which often become infected. These wounds, especially when infected, cause substantial morbidity. Wound treatments should aim to alleviate symptoms, promote healing, and avoid adverse outcomes, especially lower extremity amputation. Topical antimicrobial therapy has been used on diabetic foot ulcers, either as a treatment for clinically infected wounds, or to prevent infection in clinically uninfected wounds...
June 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28606850/the-impact-of-%C3%AE-lipoic-acid-on-cell-viability-and-expression-of-nephrin-and-znf580-in-normal-human-podocytes
#9
Ulrike Leppert, Allan Gillespie, Miriam Orphal, Karen Böhme, Claudia Plum, Kaj Nagorsen, Janine Berkholz, Reinhold Kreutz, Andreas Eisenreich
Human podocytes (hPC) are essential for maintaining normal kidney function and dysfunction or loss of hPC play a pivotal role in the manifestation and progression of chronic kidney diseases including diabetic nephropathy. Previously, α-Lipoic acid (α-LA), a licensed drug for treatment of diabetic neuropathy, was shown to exhibit protective effects on diabetic nephropathy in vivo. However, the effect of α-LA on hPC under non-diabetic conditions is unknown. Therefore, we analyzed the impact of α-LA on cell viability and expression of nephrin and zinc finger protein 580 (ZNF580) in normal hPC in vitro...
June 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28601647/metalloproteomic-and-differential-expression-in-plasma-in-a-rat-model-of-type-1-diabetes
#10
Camila Pereira Braga, José Cavalcante Souza Vieira, Aline de Lima Leite, Ana Angélica Henrique Fernandes, Marília Afonso Rabelo Buzalaf, Pedro de Magalhães Padilha
Type 1 diabetes is characterized by hyperglycemia, which in the chronic stage is associated with abnormalities in lipids, protein and, carbohydrate metabolism, as well as oxidative stress. New strategies for prevention and treatment are needed, as type 1 diabetes affects life quality and survival, and involves high-cost treatment. Proteomic and metalloproteomic studies can elucidate the functional and physiological aspects of biomolecules. In the present study, differential proteomics was used to identify potential biomarkers of diabetes in rat plasma associated with copper, selenium, zinc, and magnesium fractionation in control and diabetic rats, as well as diabetic rats treated with insulin...
June 8, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28600038/potential-differentiation-of-islet-like-cells-from-pregnant-cow-derived-placental-stem-cells
#11
Shao-Yu Peng, Chien-Wen Chou, Yu-Hsuan Kuo, Perng-Chih Shen, S W Steven Shaw
OBJECTIVE: Type 1 diabetes is an autoimmune disease that destroys islet cells and results in insufficient insulin secretion by pancreatic β-cells. Islet transplantation from donors is an approach used for treating patients with diabetes; however, this therapy is difficult to implement because of the lack of donors. Nevertheless, several stem cells have the potential to differentiate from islet-like cells and enable insulin secretion for treating diabetes in animal models. For example, placenta is considered a waste material and can be harvested noninvasively during delivery without ethical or moral concerns...
June 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28597949/primary-islet-autoantibody-at-initial-seroconversion-and-autoantibodies-at-diagnosis-of-type-1-diabetes-as-markers-of-disease-heterogeneity
#12
Jorma Ilonen, Johanna Lempainen, Anna Hammais, Antti-Pekka Laine, Taina Härkönen, Jorma Toppari, Riitta Veijola, Mikael Knip
OBJECTIVE: The relationship between patterns of islet autoantibodies at diagnosis and specificity of the first islet autoantibody at the initiation of autoimmunity was analyzed with the aim of identifying patterns informative of the primary autoantibodies. METHODS: Information about a single first autoantibody at seroconversion and autoantibody data at diagnosis were available for 128 children participating in the follow-up cohort of the Finnish Type 1 Diabetes Prediction and Prevention (DIPP) study...
June 9, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28595785/comparative-study-of-cardio-protective-effects-of-zinc-oxide-nanoparticles-and-zinc-sulfate-in-streptozotocin-induced-diabetic-rats
#13
Siamak Asri-Rezaei, Bahram Dalir-Naghadeh, Ali Nazarizadeh, Zahra Noori-Sabzikar
The cardio-protective effects of zinc oxide nanoparticles (Zn NPs) against diabetes-induced cardiopathy were evaluated and compared with zinc sulfate (ZnSO4). A total of 120 Wistar rats were randomly categorized as healthy and diabetic groups. Then, the 2 groups were classified in 5 subgroups. The animals received oral supplementations containing different Zn NP (ie, doses of 1, 3, and 10mg/kg) and ZnSO4 (30mg/kg) concentrations over 8 weeks. Blood and cardiac tissue samples were collected in the different time intervals and subjected to biochemical and histopathological analysis...
July 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28595780/the-beneficial-effects-of-zinc-on-diabetes-induced-kidney-damage-in-murine-rodent-model-of-type-1-diabetes-mellitus
#14
Fan Yang, Bing Li, Xiaoming Dong, Wenpeng Cui, Ping Luo
Diabetes mellitus is a chronic multi-factorial metabolic disorder resulting from impaired glucose homeostasis. Zinc is a key co-factor for the correct functioning of anti-oxidant enzymes. Zinc deficiency therefore, impairs their synthesis, leading to increased oxidative stress within cells. Zinc deficiency occurs commonly in diabetic patients. The aim of this study is to investigate the effects of varying concentrations of zinc on diabetic nephropathy (DN) and the underlying mechanisms involved. FVB male mice aged 8 weeks were injected intraperitoneally with multiple low-dose streptozotocin at a concentration of 50mg/kg body weight daily for 5 days...
July 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28592518/zinc-supplementation-does-not-alter-indicators-of-insulin-secretion-and-sensitivity-in-black-and-white-female-adolescents
#15
Andrea J Lobene, Joseph M Kindler, Nathan T Jenkins, Norman K Pollock, Emma M Laing, Arthur Grider, Richard D Lewis
Background: Zinc is a micronutrient involved in the production of, and peripheral sensitivity to, pancreatic β cell-derived insulin. To our knowledge, the effect of zinc supplementation on insulin outcomes, and potential risk of diabetes, in otherwise healthy children in the United States has not been investigated.Objective: The objective of this study was to determine the influence of zinc supplementation on insulin outcomes in black and white girls in the early stages of adolescence. A secondary objective was to determine relations between baseline zinc concentrations and insulin outcomes...
June 7, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28584737/study-of-lipid-peroxidation-nitric-oxide-end-product-and-trace-element-status-in-type-2-diabetes-mellitus-with-and-without-complications
#16
Sanjukta Mishra, Bana Bihari Mishra
BACKGROUND: Oxidative stress has become a real entity in etiopathogenesis of Type 2 diabetes mellitus (DM). It may result from steady flux of free radicals and lipid peroxides in vivo. Malondialdehyde (MDA) is a stable end product of lipid peroxidation. Accumulative evidences suggest that hyperglycemia in Type 2 DM can produce major changes in nitric oxide (NO) production as well as in its action. Alteration in metabolism of trace elements is also observed in DM. OBJECTIVE: To evaluate oxidative stress, status of NO, and trace elements zinc (Zn) and magnesium (Mg) in type 2 DM and to correlate these parameters with disease process...
April 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28576073/zno-nanoflower-based-sensitive-nano-biosensor-for-amyloid-detection
#17
Najim Akhtar, Sanjay Kisan Metkar, Agnishwar Girigoswami, Koyeli Girigoswami
Zinc oxide (ZnO) is a semiconductor metal oxide nanoparticle with inherent optical properties. Among the different zinc oxide nanostructures, nanoflowers have greater surface area. Utilizing this property a reagentless biosensor has been developed for the detection of beta amyloids, a hallmark of neurodegenerative diseases like Alzheimer's disease, Creutzfeldt-Jakob Syndrome, insulin dependent type II diabetes etc. The poor fluorescence quantum yield and photobleaching effect of Thioflavin T (ThT) upon binding to the model insulin amyloid beta sheets in solution can be overcome by the present engineered biosensor where ThT acts as a target as well as a reporter to detect amyloids adsorbed on a solid template based on ZnO nanoflower...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28570649/antioxidant-agents-for-delaying-diabetic-kidney-disease-progression-a-systematic-review-and-meta-analysis
#18
Davide Bolignano, Valeria Cernaro, Guido Gembillo, Rossella Baggetta, Michele Buemi, Graziella D'Arrigo
BACKGROUND: Oxidative stress is a key player in the genesis and worsening of diabetic kidney disease (DKD). We aimed at collecting all available information on possible benefits of chronic antioxidant supplementations on DKD progression. STUDY DESIGN: Systematic review and meta-analysis. POPULATION: Adults with DKD (either secondary to type 1 or 2 diabetes mellitus). SEARCH STRATEGY AND SOURCES: Cochrane CENTRAL, Ovid-MEDLINE and PubMed were searched for randomized controlled trials (RCTs) or quasi-RCTs without language or follow-up restriction...
2017: PloS One
https://www.readbyqxmd.com/read/28566847/evaluation-of-micronutrient-zinc-magnesium-and-copper-levels-in-serum-and-glycemic-status-after-nonsurgical-periodontal-therapy-in-type-2-diabetic-patients-with-chronic-periodontitis
#19
Gopalakrishnan Sundaram, T Ramakrishnan, Harinath Parthasarathy, Joyson Moses, T Lalitha
AIMS AND OBJECTIVES: To find out the effect of nonsurgical periodontal therapy on serum zinc (Zn), magnesium (Mg), and copper (Cu) concentration and glycemic status in type 2 diabetes with chronic periodontitis (CP). MATERIALS AND METHODS: One hundred and twenty patients were included in this study, which was further divided into three groups. Group 1 consisted of forty patients with CP, Group 2 consisted of forty patients of CP with controlled diabetes, and Group 3 consisted of forty patients of CP with uncontrolled diabetes...
January 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28555162/red-yeast-rice-protects-circulating-bone-marrow-derived-proangiogenic-cells-against-high-glucose-induced-senescence-and-oxidative-stress-the-role-of-heme-oxygenase-1
#20
Jung-Tung Liu, Huey-Yi Chen, Wen-Chi Chen, Kee-Ming Man, Yung-Hsiang Chen
The inflammation and oxidative stress of bone marrow-derived proangiogenic cells (PACs), also named endothelial progenitor cells, triggered by hyperglycemia contributes significantly to vascular dysfunction. There is supporting evidence that the consumption of red yeast rice (RYR; Monascus purpureus-fermented rice) reduces the vascular complications of diabetes; however, the underlying mechanism remains unclear. This study aimed to elucidate the effects of RYR extract in PACs, focusing particularly on the role of a potent antioxidative enzyme, heme oxygenase-1 (HO-1)...
2017: Oxidative Medicine and Cellular Longevity
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