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https://www.readbyqxmd.com/read/28329747/influence-of-dipeptidyl-peptidase-iv-inhibitor-sitagliptin-on-extracellular-signal-regulated-kinases-1-2-signaling-in-rats-with-diabetic-nephropathy
#1
Xiaojun Ren, Gaohong Liu, Yanhong Wang, Wan Zhang, Fuping Xue, Rongshan Li, Weimin Yu
The protective effects of sitagliptin on the kidneys of rats with diabetic nephropathy (DN) and its influence on extracellular signal-regulated kinases 1/2 (ERK1/2) signaling were investigated. Male Wistar rats (n = 40) were randomly assigned to normal control, DN, low-dose sitagliptin intervention (ST1), or high-dose sitagliptin intervention (ST2) groups. Animals were euthanized after a 16-week treatment, and blood glucose (BG), glycosylated hemoglobin (HbA1c), urinary albumin excretion rate (AER), serum creatinine (Scr), creatinine clearance rate (Ccr), active glucagon-like peptide-1 (GLP-1) levels, kidney hypertrophy index, and renal pathohistology were determined...
March 23, 2017: Pharmacology
https://www.readbyqxmd.com/read/28329736/delay-in-renal-hemodynamic-response-to-a-meat-meal-in-severe-obesity
#2
Pietro Anastasio, Davide Viggiano, Miriam Zacchia, Claudia Altobelli, Giovambattista Capasso, Natale Gaspare De Santo
BACKGROUND/AIMS: Little information is available about the tubular functions and the renal adjustments that take place in obese subjects after a protein meal. How the excess fat may affect renal response to dietary proteins is currently only partially understood. This paper aims to address (i) whether severe obesity, in the absence of other comorbidities, is responsible of kidney dysfunction at either the glomerular or the tubular level and (ii) whether it compromises renal adaptations to a large protein meal...
March 23, 2017: Nephron
https://www.readbyqxmd.com/read/28325788/decompression-illness-with-hypovolemic-shock-and-neurological-failure-symptoms-after-two-risky-dives-a-case-report
#3
Sebastian Klapa, Johannes Meyne, Wataru Kähler, Frauke Tillmans, Henning Werr, Andreas Binder, Andreas Koch
Hypovolemia is known to be a predisposing factor of decompression illness (DCI) while diving. The typical clinically impressive neurological symptoms of DCI may distract from other symptoms such as an incipient hypovolemic shock. We report the case of a 61-year-old male Caucasian, who presented with an increasing central and peripheral neural failure syndrome and massive hypovolemia after two risky dives. Computed tomography (CT) scans of the chest and Magnetic resonance imaging scans of the head revealed multiple cerebral and pulmonary thromboembolisms...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28325783/renal-handling-of-ketones-in-response-to-sodium-glucose-cotransporter-2-inhibition-in-patients-with-type-2-diabetes
#4
Ele Ferrannini, Simona Baldi, Silvia Frascerra, Brenno Astiarraga, Elisabetta Barsotti, Aldo Clerico, Elza Muscelli
OBJECTIVE: Pharmacologically induced glycosuria elicits adaptive responses in glucose homeostasis and hormone release, including decrements in plasma glucose and insulin levels, increments in glucagon release, enhanced lipolysis, and stimulation of ketogenesis, resulting in an increase in ketonemia. We aimed at assessing the renal response to these changes. RESEARCH DESIGN AND METHODS: We measured fasting and postmeal urinary excretion of glucose, β-hydroxybutyrate (β-HB), lactate, and sodium in 66 previously reported patients with type 2 diabetes and preserved renal function (estimated glomerular filtration rate ≥60 mL · min(-1) · 1...
March 21, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28324863/croconaine-nanoparticles-with-enhanced-tumor-accumulation-for-multimodality-cancer-theranostics
#5
Longguang Tang, Fuwu Zhang, Fei Yu, Wenjing Sun, Menglin Song, Xiaoyuan Chen, Xianzhong Zhang, Xiaolian Sun
A novel nanoparticle self-assembled by polyethylene glycol (PEG) modified croconaine dye (CR780) is presented for photoacoustic (PA)/near-infrared (NIR) fluorescence imaging-guided photothermal therapy (PTT). The simple PEGylation made CR780 amphiphilic, and led to their self-assembly into well-defined and uniform nanostructures with size tunable by controlling the assembly conditions. The CR780-PEG5K not only displayed the strength of small molecules (including rapid distribution to different organs, fast renal clearance and minimal accumulation to normal tissues), but also demonstrated the advantages of nanomaterials (including high physiological stability, multimodal theranostic ability, high tumor accumulation and retention)...
March 13, 2017: Biomaterials
https://www.readbyqxmd.com/read/28324653/evaluation-of-brain-pharmacokinetic-and-neuropharmacodynamic-attributes-of-antiepileptic-drug-lacosamide-in-hepatic-and-renal-impairment-preclinical-evidence
#6
Baldeep Kumar, Manish Modi, Biman Saikia, Bikash Medhi
The knowledge of pharmacokinetic and pharmacodynamic properties of antiepileptic drugs is helpful in optimizing drug therapy for epilepsy. This study was designed to evaluate the pharmacokinetic and pharmacodynamic properties of lacosamide in experimentally induced hepatic and renal impairment in seizure animals. Hepatic or renal impairment was induced by injection of carbon tetrachloride or diclofenac sodium, respectively. After induction, the animals were administered with a single dose of lacosamide. At different time points, MES seizure recordings were done followed by isolation of plasma and brain samples for drug quantification and pharmacodynamic measurements...
March 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28323955/rapid-onset-of-diabetic-ketoacidosis-following-sglt2-inhibition-in-a-patient-with-unrecognized-acromegaly
#7
Marino Quarella, Daniel Walser, Michael Brändle, Jean-Yves Fournier, Stefan Bilz
Context: Diabetic ketoacidosis has been described as a rare complication of acromegaly and may be observed in 1% of affected patients. The well described direct lipolytic effect of growth hormone results in increased availability of free fatty acids (FFA) for hepatic ketogenesis and is an important pathogenic event. More recently, ketoacidosis has been identified as an important complication of sodium-glucose-transport-protein 2 inhibitors (SGLT2i). Increased pancreatic glucagon secretion, impaired renal ketone body clearance and an increase in FFA concentrations secondary to decreased insulin concentrations are likely precipitating factors...
February 21, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323295/augd-integrated-nanoprobes-for-optical-mri-ct-triple-modal-in-vivo-tumor-imaging
#8
Chao Xu, Yaling Wang, Chunyu Zhang, Yanwei Jia, Yunjing Luo, Xueyun Gao
Multi-modal imaging agents are desirable for tumor diagnosis because they can provide more information on the tumor than single-modal imaging agents. However, most reported multi-modal imaging agents are dual-modal agents rather than tri-modal agents; therefore, detailed information on the tumor may still be insufficient when such imaging agents are used. To ameliorate this issue, we synthesized a tri-modal imaging agent, composed of gold cluster and gadolinium oxide integrated nanoparticles (denoted as AuGds) using bovine serum albumin (BSA) as the template via a bio-mineralization method...
March 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28322939/do-we-need-to-study-metabolism-and-distribution-in-the-eye-why-when-and-are-we-there-yet
#9
Upendra A Argikar, Jennifer L Dumouchel, Valerie M Kramlinger, Amanda L Cirello, Mithat Gunduz, Christine E Dunne, Bindi Sohal
Liver is known to be the principal site of drug metabolism. Depending on the route of administration, especially in cases of topical/local delivery, evaluation of local drug metabolism in extrahepatic tissues is vital to assess fraction metabolized. This parameter becomes important from the point of view of drug availability or the contribution to overall clearance. Examples include fraction metabolized in the gut for oral drugs and contribution of pulmonary or renal clearance to total clearance of a drug. Diseases of the eye represent a rising unmet medical need, and a number of therapeutics are currently being developed in the form of small molecules and biologics...
March 17, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28320714/variability-in-trough-total-and-unbound-teicoplanin-concentrations-and-achievement-of-therapeutic-drug-monitoring-targets-in-adult-patients-with-haematological-malignancy
#10
Catherine J Byrne, Jason A Roberts, Brett McWhinney, Jerome P Fennell, Philomena O'Byrne, Evelyn Deasy, Sean Egan, Ronan Desmond, Helen Enright, Sheila A Ryder, Deirdre M D'Arcy, Johnny McHugh
Objectives: To explore the following aspects of teicoplanin use in patients with haematological malignancy: early attainment of target trough concentrations with current high dose teicoplanin regimens; variability in unbound teicoplanin fractions; factors associated with observed total and unbound trough concentrations; efficacy and toxicity; and renal function estimation.Methods: This was a single-centre, prospective study. Trough samples were taken on Days 3, 4, 7 and 10. Total and unbound teicoplanin concentrations were determined using validated HPLC methods...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28317878/kidney-specific-transposon-mediated-gene-transfer-in-vivo
#11
Lauren E Woodard, Jizhong Cheng, Richard C Welch, Felisha M Williams, Wentian Luo, Leslie S Gewin, Matthew H Wilson
Methods enabling kidney-specific gene transfer in adult mice are needed to develop new therapies for kidney disease. We attempted kidney-specific gene transfer following hydrodynamic tail vein injection using the kidney-specific podocin and gamma-glutamyl transferase promoters, but found expression primarily in the liver. In order to achieve kidney-specific transgene expression, we tested direct hydrodynamic injection of a DNA solution into the renal pelvis and found that luciferase expression was strong in the kidney and absent from extra-renal tissues...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315683/klotho-ameliorates-cyclosporine-a-induced-nephropathy-via-pdlim2-nf-kb-p65-signaling-pathway
#12
Meihua Jin, Pengfei Lv, Guanyu Chen, Peng Wang, Zhongfu Zuo, Lili Ren, Jing Bi, Chul-Woo Yang, Xifan Mei, Donghe Han
Klotho, an antiaging protein, can extend the lifespan and modulate cellular responses to inflammation and oxidative stress which can ameliorate chronic kidney diseases (CKD). To investigate the molecular mechanism of Klotho on inflammation in cyclosporine A (CsA) induced nephropathy, the mice were transfected with adenovirus mediated Klotho gene and treated with cyclosporine A (CsA; 30 mg/kg/day) for 4 weeks. Also, primary human renal proximal tubule epithelial cells (RPTECs) were treated with soluble Klotho protein and LPS...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28314755/a-randomised-controlled-trial-of-the-efficacy-and-safety-of-allopurinol-dose-escalation-to-achieve-target-serum-urate-in-people-with-gout
#13
Lisa K Stamp, Peter T Chapman, Murray L Barclay, Anne Horne, Christopher Frampton, Paul Tan, Jill Drake, Nicola Dalbeth
OBJECTIVES: To determine the efficacy and safety of allopurinol dose escalation using a treat-to-target serum urate (SU) approach. METHODS: A randomised, controlled, parallel-group, comparative clinical trial was undertaken. People with gout receiving at least creatinine clearance (CrCL)-based allopurinol dose for ≥1 month and SU ≥6 mg/dL were recruited. Participants were randomised to continue current dose (control) or allopurinol dose escalation for 12 months...
March 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28306589/older-adult-kidney-function-assessment-and-rounding-creatinine-led-to-medication-dosing-error
#14
Timothy Nguyen, Yanique Foster, Shpres Cekaj
BACKGROUND/AREAS OF UNCERTAINTY: Kidney function assessment in older adults can be unreliable because of many factors, and inaccurate assessment can lead to medication dosing error. Practitioners may have adopted the method of rounding creatinine to an arbitrary number 1.0 because of change in muscle mass and age-related change. This has in fact proven to cause more harm than good, potentially leading to underdosing of many medications. DATA SOURCES: A literature search performed using PubMed with the following key words (rounding serum creatinine, rounding serum creatinine AND pharmacist or pharmacy, rounding serum creatinine AND doctor or physician or healthcare, rounding serum creatinine AND kidney function) with no restrictions (dates or any other requirement)...
March 1, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28303741/weight-of-the-evidence-evaluation-of-2-4-d-potential-for-interactions-with-the-estrogen-androgen-and-thyroid-pathways-and-steroidogenesis
#15
B H Neal, J Bus, M S Marty, K Coady, A Williams, J Staveley, J C Lamb
A comprehensive weight-of-the-evidence evaluation of 2,4-dichlorophenoxyacetic acid (2,4-D) was conducted for potential interactions with the estrogen, androgen and thyroid pathways and with steroidogenesis. This assessment was based on an extensive database of high quality in vitro, in vivo ecotoxicological and in vivo mammalian toxicological studies. Epidemiological studies were also considered. Toxicokinetic data provided the basis for determining rational cutoffs above which exposures were considered irrelevant to humans based on exceeding thresholds for saturation of renal clearance (TSRC); extensive human exposure and biomonitoring data support that these boundaries far exceed human exposures and provide ample margins of exposure...
March 2, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28303631/surgical-outcomes-of-percutaneous-nephrolithotomy-pcnl-in-3-402-patients-and-results-of-stone-analysis-in-1-559-patients-from-a-single-centre-in-pakistan
#16
S A H Rizvi, M Hussain, S H Askari, M Lal, M N Zafar
OBJECTIVE: To report our experience of a series of PCNL from a single centre over the last 18 years in terms of patients and stone characteristics, indications, stone clearance and complications and chemical analysis of stones in a subgroup. PATIENTS AND METHODS: We retrospectively analysed the outcomes of PCNL in 3,402 adult patients who underwent the procedure between 1997 and 2014 from a prospectively maintained database. Data analysis included patients' age, sex, laboratory investigations, imaging, punctured calyx, duration of operation, volume of irrigation fluid, radiation exposure time, blood transfusion, complications and stone free status at one-month follow-up...
March 16, 2017: BJU International
https://www.readbyqxmd.com/read/28301139/designing-hydrogels-for-on-demand-therapy
#17
Nuria Oliva, João Conde, Kui Wang, Natalie Artzi
Systemic administration of therapeutic agents has been the preferred approach to treat most pathological conditions, in particular for cancer therapy. This treatment modality is associated with side effects, off-target accumulation, toxicity, and rapid renal and hepatic clearance. Multiple efforts have focused on incorporating targeting moieties into systemic therapeutic vehicles to enhance retention and minimize clearance and side effects. However, only a small percentage of the nanoparticles administered systemically accumulate at the tumor site, leading to poor therapeutic efficacy...
March 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28300873/the-renoprotective-effect-of-oral-tadalafil-pretreatment-on-ischemia-reperfusion-injury-in-rats
#18
Vanessa de Fátima Lima Paiva Medeiros, Ítalo Medeiros Azevedo, Marília Daniela Ferreira Carvalho, Cláudia Nunes Oliveira, Eryvaldo Sócrates Tabosa do Egito, Aldo Cunha Medeiros
To evaluate the effect of tadalafil in renal ischemia/reperfusion (I/R) injury in rats Methods: Group I/R saline rats (n=6) were subjected to 45 minutes of left renal ischemia and treated with saline; the I/R tadalafil rats (n=6) received oral 10mg/kg tadalafil microemulsion one hour before ischemia. In both groups, 8 hours after ischemia, laboratory analysis were performed Results: Better tissue perfusion was lower in ischemic left/kidney than in right/kidney in saline group, suggesting reduced kidney clearance...
February 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28295607/incremental-hemodialysis-the-university-of-california-irvine-experience
#19
Mehrdad Ghahremani-Ghajar, Vanessa Rojas-Bautista, Wei-Ling Lau, Madeleine Pahl, Miguel Hernandez, Anna Jin, Uttam Reddy, Jason Chou, Yoshitsugu Obi, Kamyar Kalantar-Zadeh, Connie M Rhee
Incremental hemodialysis has been examined as a viable hemodialysis regimen for selected end-stage renal disease (ESRD) patients. Preservation of residual kidney function (RKF) has been the driving impetus for this approach given its benefits upon the survival and quality of life of dialysis patients. While clinical practice guidelines recommend an incremental start of dialysis in peritoneal dialysis patients with substantial RKF, there remains little guidance with respect to incremental hemodialysis as an initial renal replacement therapy regimen...
March 14, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28294855/-relationship-between-blood-serum-galectin-and-renal-dysfunction-in-st-elevation-myocardial-infarction
#20
V N Karetnikova, A V Osokina, M V Evseeva, O V Gruzdeva, M V Zykov, V V Kalaeva, V V Kashtalap, K S Shafranskaya, O N Khryachkova, O L Barbarash
AIM: to assess value for inhospital and 1 year prognosis of unfavorable course of ST-elevation myocardial infarction (STEMI) of blood serum galectin and markers of renal dysfunction (RD). MATERIAL AND METHODS: Standard laboratory and instrumental examination, calculation of glomerular filtration rate using MDRD formula and by cystatin C level, determination of galectin in blood serum were carried out in 128 patients with STEMI. According to GFR by cystatin C level on day 12 of STEMI patients were divided into 2 groups - with normal renal function (GFR more or equal 60 ml/min/1...
April 2016: Kardiologiia
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