keyword
MENU ▼
Read by QxMD icon Read
search

urinary peptides

keyword
https://www.readbyqxmd.com/read/28798909/analysis-of-urine-composition-in-type-ii-diabetic-mice-after-intervention-therapy-using-holothurian-polypeptides
#1
Yanyan Li, Jiajie Xu, Xiurong Su
Hydrolysates and peptide fractions (PF) obtained from sea cucumber with commercial enzyme were studied on the hyperglycemic and renal protective effects on db/db rats using urine metabolomics. Compared with the control group the polypeptides from the two species could significantly reduce the urine glucose and urea. We also tried to address the compositions of highly expressed urinary proteins using a proteomics approach. They were serum albumins, AMBP proteins, negative trypsin, elastase, and urinary protein, GAPDH, a receptor of urokinase-type plasminogen activator (uPAR), and Ig kappa chain C region...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28797632/association-of-angiotensin-ii-levels-with-albuminuria-in-subjects-with-normal-glucose-metabolism-prediabetes-and-type-2-diabetes-mellitus
#2
Se Hee Min, Sung Hye Kong, Jie-Eun Lee, Dong-Hwa Lee, Tae Jung Oh, Kyoung Min Kim, Kyong Soo Park, Hak Chul Jang, Soo Lim
OBJECTIVES: The relationship between the renin-angiotensin system (RAS) and diabetes has been studied for many years. However, studies that assessed RAS components comprehensively were limited. We hypothesized that serum RAS components, especially the effector peptide angiotensin-II, might be closely associated with glucose metabolism status and diabetic complications. METHODS: We investigated the association of individual RAS component with albuminuria in 407 subjects with normal glucose metabolism (NGM), prediabetes, or type 2 diabetes mellitus (T2DM)...
July 6, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28794628/a-synthetic-urinary-probe-coated-nanoparticles-sensitive-to-fibroblast-activation-protein-%C3%AE-for-solid-tumor-diagnosis
#3
Xinwei Feng, Qifan Wang, Yuehua Liao, Xie Zhou, Yidan Wang, Wanli Liu, Ge Zhang
We developed fibroblast activation protein α (FAPα)-sensitive magnetic iron oxide nanoparticles (MNPs) by conjugating a substrate-reporter tandem peptide as a synthetic biomarker to the surface of MNPs (marker-MNPs). In vitro, the marker-MNPs showed stability when treated with serum or urine and exhibited high susceptibility and specificity for FAPα enzyme and 3T3/FAPα cell line. Furthermore, the marker-MNPs were administered to esophageal squamous cell carcinoma xenograft tumor mice; they reached the tumor tissues in the mice, where they were cleaved effectively by the local overexpressed FAPα to release the reporter peptide and filter it into the urine...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28749951/vitamin-d-deficient-mice-have-more-invasive-urinary-tract-infection
#4
Olof Hertting, Petra Lüthje, Devin Sullivan, Pontus Aspenström, Annelie Brauner
Vitamin D deficiency is a common health problem with consequences not limited to bone and calcium hemostasis. Low levels have also been linked to tuberculosis and other respiratory infections as well as autoimmune diseases. We have previously shown that supplementation with vitamin D can induce the antimicrobial peptide cathelicidin during ex vivo infection of human urinary bladder. In rodents, however, cathelicidin expression is not linked to vitamin D and therefore this vitamin D-related effect fighting bacterial invasion is not relevant...
2017: PloS One
https://www.readbyqxmd.com/read/28747361/metabolic-acidosis-stimulates-the-production-of-the-antimicrobial-peptide-cathelicidin-in-rabbit-urine
#5
Hu Peng, Jeffrey M Purkerson, Andrew L Schwaderer, George J Schwartz
Intercalated cells of the collecting duct (CD) are critical for acid-base homeostasis and innate immune defense of the kidney. Little is known about the impact of acidosis on innate immune defense in the distal nephron. Urinary tract infections are mainly due to Escherichia coli and are an important risk factor for development of chronic kidney disease. While the effect of urinary pH on growth of E. coli is well established, in this study we demonstrate that acidosis increases urine antimicrobial activity due, at least in part, to induction of cathelicidin expression within the CD...
July 26, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28739824/epigenetic-mechanisms-regulate-innate-immunity-against-uropathogenic-and-commensal-like-escherichia-coli-in-the-surrogate-insect-model-galleria-mellonella
#6
Miriam Heitmueller, André Billion, Ulrich Dobrindt, Andreas Vilcinskas, Krishnendu Mukherjee
Innate immunity-related genes in humans are activated during urinary tract infections (UTIs) caused by pathogenic strains of Escherichia coli but are suppressed by commensals. Epigenetic mechanisms play a pivotal role in the regulation of gene expression in response to environmental stimuli. To determine whether epigenetic mechanisms can explain the different behaviors of pathogenic and commensal bacteria, we infected larvae of the greater wax moth Galleria mellonella, a widely-used model insect host, with a uropathogenic E...
July 24, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28738076/the-comparison-of-chca-solvent-compositions-for-improving-lc-maldi-performance-and-its-application-to-study-the-impact-of-aflatoxin-b1-on-the-liver-proteome-of-diabetes-mellitus-type-1-mice
#7
Fuu-Jen Tsai, Shih-Yin Chen, Yu-Ching Liu, Hsin-Yi Liao, Chao-Jung Chen
In nanoflow liquid chromatography-matrix-assisted laser desorption/ionization tandem time-of-flight (nanoLC-MALDI-TOF/TOF) approaches, it is critical to directly apply small amounts of the sample elutes on the sample target using a nanoLC system due to its low flow rate of 200 ~ 300 nl/min. It is recommended to apply a sheath liquid containing a matrix with a several μL/min flow rate at the end of the nanoLC column to ensure a larger co-eluted droplet for more reproducible sample spotting and avoid the laborious task of post-manual matrix spotting...
2017: PloS One
https://www.readbyqxmd.com/read/28738027/n-terminal-b-type-natriuretic-peptide-urinary-concentrations-and-retinopathy-of-prematurity
#8
Christoph Bührer, Ömer Erdeve, Anton van Kaam, Angelika Berger, Evelyn Lechner, Benjamin Bar-Oz, Karel Allegaert, Tom Stiris, İstemi Han Çelik, Janet Berrington
BACKGROUND AND AIMS: To validate findings of a single-center pilot study showing elevated urinary N-terminal B-type natriuretic peptide (NTproBNP) concentrations in preterm infants subsequently developing severe retinopathy of prematurity (ROP) in a multicenter setting across 8 European and Middle East countries. METHODS: Prospective observational study in 967 preterm infants<30 weeks gestational age assessing the capacity of urinary NTproBNP on day of life (DOL) 14 and 28 to predict ROP requiring treatment...
July 24, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28724607/renal-hemodynamic-effects-of-glucagon-like-peptide-1-agonist-are-mediated-by-nitric-oxide-but-not-prostaglandin
#9
Scott Culver Thomson, Ali Kashkouli, Zhi Zhao Liu, Prabhleen Singh
The incretin hormone, glucagon like peptide-1 (GLP-1), is known for responding to dietary fat and carbohydrate. It elicits effects on pancreas, gut, and brain to stabilize blood glucose levels. We have previously reported that the GLP-1 agonist, exenatide, vasodilates the kidney and suppresses proximal reabsorption. The present study was undertaken to determine whether the renal effects of exenatide are mediated by nitric oxide (NO) and/or prostaglandins. Inulin clearance (GFR) and urine flow rate (UV) were measured in anesthetized rats before and during exenatide infusion (1 nmol/h iv)...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28717416/feasibility-of-urinary-extracellular-vesicle-proteome-profiling-using-a-robust-and-simple-clinically-applicable-isolation-method
#10
Irene V Bijnsdorp, Olga Maxouri, Aarzo Kardar, Tim Schelfhorst, Sander R Piersma, Thang V Pham, Andre Vis, R Jeroen van Moorselaar, Connie R Jimenez
Extracellular vesicles (EVs) secreted by prostate cancer (PCa) cells contain specific biomarkers and can be isolated from urine. Collection of urine is not invasive, and therefore urinary EVs represent a liquid biopsy for diagnostic and prognostic testing for PCa. In this study, we optimised urinary EV isolation using a method based on heat shock proteins and compared it to gold-standard ultracentrifugation. The urinary EV isolation protocol using the Vn96-peptide is easier, time convenient (≈1.5 h) and no special equipment is needed, in contrast to ultracentrifugation protocol (>3...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28704490/the-synthetic-killer-peptide-kp-impairs-candida-albicans-biofilm-in-vitro
#11
Simona Paulone, Andrea Ardizzoni, Arianna Tavanti, Serena Piccinelli, Cosmeri Rizzato, Antonella Lupetti, Bruna Colombari, Eva Pericolini, Luciano Polonelli, Walter Magliani, Stefania Conti, Brunella Posteraro, Claudio Cermelli, Elisabetta Blasi, Samuele Peppoloni
Candida albicans is a commensal organism, commonly inhabiting mucosal surfaces of healthy individuals, as a part of the resident microbiota. However, in susceptible hosts, especially hospitalized and/or immunocompromised patients, it may cause a wide range of infections. The presence of abiotic substrates, such as central venous or urinary catheters, provides an additional niche for Candida attachment and persistence, particularly via biofilm development. Furthermore, Candida biofilm is poorly susceptible to most antifungals, including azoles...
2017: PloS One
https://www.readbyqxmd.com/read/28701371/population-based-assessment-of-a-biomarker-based-screening-pathway-to-aid-diagnosis-of-monogenic-diabetes-in-young-onset-patients
#12
Beverley M Shields, Maggie Shepherd, Michelle Hudson, Timothy J McDonald, Kevin Colclough, Jaime Peters, Bridget Knight, Chris Hyde, Sian Ellard, Ewan R Pearson, Andrew T Hattersley
OBJECTIVE: Monogenic diabetes, a young-onset form of diabetes, is often misdiagnosed as type 1 diabetes, resulting in unnecessary treatment with insulin. A screening approach for monogenic diabetes is needed to accurately select suitable patients for expensive diagnostic genetic testing. We used C-peptide and islet autoantibodies, highly sensitive and specific biomarkers for discriminating type 1 from non-type 1 diabetes, in a biomarker screening pathway for monogenic diabetes. RESEARCH DESIGN AND METHODS: We studied patients diagnosed aged 30 years or younger, currently younger than 50 years, in two U...
July 12, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28699892/dpp-4-enzyme-deficiency-protects-kidney-from-acute-ischemia-reperfusion-injury-role-for-remote-intermittent-bowel-ischemia-reperfusion-preconditioning
#13
Yen-Ta Chen, Christopher Glenn Wallace, Chih-Chao Yang, Chih-Hung Chen, Kuan-Hung Chen, Pei-Hsun Sung, Yung-Lung Chen, Han-Tan Chai, Sheng-Ying Chung, Sarah Chua, Fan-Yen Lee, Sheung-Fat Ko, Mel S Lee, Hon-Kan Yip
We analyzed the effects of acute ischemia-reperfusion (KIR) injury on the status of kidney function and architecture in dipeptidyl peptidase4-difficient (DPP4D) rats and the effect of remote small bowel ischemia-reperfusion (BIR) preconditioning. DPP4-deficient (DPP4D) and normal Fischer344 (F344) rats were divided into 6 groups: (1) sham-F344, (2) sham-DPP4D, (3) KIR-F344 (4) KIR-DPP4D, (5) DPP4D-KIR-extendin-9-39 and (6) BIR-KIR-F344. Blood creatinine and urea nitrogen levels and the urinary protein-to-creatinine ratio was higher in KIR-F344 rats than BIR-KIR-F344 or KIR-DPP4D rats 72 h after acute KIR...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28698824/on-the-tear-proteome-of-the-house-mouse-mus-musculus-musculus-in-relation-to-chemical-signalling
#14
Romana Stopkova, Petr Klempt, Barbora Kuntova, Pavel Stopka
Mammalian tears are produced by lacrimal glands to protect eyes and may function in chemical communication and immunity. Recent studies on the house mouse chemical signalling revealed that major urinary proteins (MUPs) are not individually unique in Mus musculus musculus. This fact stimulated us to look for other sexually dimorphic proteins that may-in combination with MUPs-contribute to a pool of chemical signals in tears. MUPs and other lipocalins including odorant binding proteins (OBPs) have the capacity to selectively transport volatile organic compounds (VOCs) in their eight-stranded beta barrel, thus we have generated the tear proteome of the house mouse to detect a wider pool of proteins that may be involved in chemical signalling...
2017: PeerJ
https://www.readbyqxmd.com/read/28694024/iron-metabolism-state-of-the-art
#15
R Daher, Z Karim
Iron homeostasis relies on the amount of its absorption by the intestine and its release from storage sites, the macrophages. Iron homeostasis is also dependent on the amount of iron used for the erythropoiesis. Hepcidin, which is synthesized predominantly by the liver, is the main regulator of iron metabolism. Hepcidin reduces serum iron by inhibiting the iron exporter, ferroportin expressed both tissues, the intestine and the macrophages. In addition, in the enterocytes, hepcidin inhibits the iron influx by acting on the apical transporter, DMT1...
July 7, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28689894/urine-concentrations-of-human-beta-defensins-and-ribonuclease-7-in-urinary-tract-infection-and-asymptomatic-bacteriuria
#16
Charlott Kjölvmark, Per Åkesson, Lisa I Påhlman
Antimicrobial peptides (AMPs) provide a first line of defense against bacterial infections. Here we report that urine levels of AMPs, locally produced in the urinary tract, are lower in individuals with asymptomatic bacteriuria (ABU) compared to patients with urinary tract infection (UTI).
June 19, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28677620/ranatensin-hl-a-bombesin-related-tridecapeptide-from-the-skin-secretion-of-the-broad-folded-frog-hylarana-latouchii
#17
Yan Lin, Tianbao Chen, Mei Zhou, Lei Wang, Songkun Su, Chris Shaw
Bombesin-related peptides are a family of peptides whose prototype was discovered in amphibian skin and which exhibit a wide range of biological activities. Since the initial isolation of bombesin from Bombina bombina skin, diverse forms of bombesin-related peptides have been found in the skins across Anura. In this study, a novel bombesin-related peptide of the ranatensin subfamily, named ranatensin-HL, was structurally-characterised from the skin secretion of the broad-folded frog, Hylarana latouchii, through combination of molecular cloning and mass spectrometric methodologies...
July 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28675470/brain-serotoninergic-nervous-system-is-involved-in-bombesin-induced-frequent-urination-through-brain-5-ht7-receptors-in-rats
#18
Takahiro Shimizu, Shogo Shimizu, Naoki Wada, Shun Takai, Nobutaka Shimizu, Youichirou Higashi, Katsumi Kadekawa, Tsuyoshi Majima, Motoaki Saito, Naoki Yoshimura
BACKGROUND AND PURPOSE: Psychological stress exacerbates symptoms of urinary bladder dysfunction; however, underlying brain mechanisms are unclear. We reported that centrally administered bombesin, a stress-related neuropeptide, facilitates the rat micturition reflex. Brain bombesin-like peptides modulate the serotoninergic nervous system activity under stress conditions; therefore, we examined whether brain serotonin is involved in bombesin-induced frequent urination in urethane-anesthetized (0...
July 4, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28669814/quick-96fasp-for-high-throughput-quantitative-proteome-analysis
#19
Yanbao Yu, Shiferaw Bekele, Rembert Pieper
Filter aided sample preparation (FASP) is becoming a central method for proteomic sample cleanup and peptide generation prior to LC-MS analysis. We previously adapted this method to a 96-well filter plate, and applied to prepare protein digests from cell lysate and body fluid samples in a high throughput quantitative manner. While the 96FASP approach is scalable and can handle multiple samples simultaneously, two key advantages compared to single FASP, it is also time-consuming. The centrifugation-based liquid transfer on the filter plate takes 3-5 times longer than single filter...
June 29, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28655312/transplantation-of-human-fetal-pancreatic-progenitor-cells-ameliorates-renal-injury-in-streptozotocin-induced-diabetic-nephropathy
#20
Yongwei Jiang, Wenjian Zhang, Shiqing Xu, Hua Lin, Weiguo Sui, Honglin Liu, Liang Peng, Qing Fang, Li Chen, Jinning Lou
BACKGROUND: Diabetic nephropathy (DN) is a severe complication of diabetes mellitus (DM). Pancreas or islet transplantation has been reported to prevent the development of DN lesions and ameliorate or reverse existing glomerular lesions in animal models. Shortage of pancreas donor is a severe problem. Islets derived from stem cells may offer a potential solution to this problem. OBJECTIVE: To evaluate the effect of stem cell-derived islet transplantation on DN in a rat model of streptozotocin-induced DM...
June 27, 2017: Journal of Translational Medicine
keyword
keyword
108689
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"