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https://www.readbyqxmd.com/read/28339935/nephrotoxicity-of-anticancer-treatment
#1
Jolanta Malyszko, Klaudia Kozlowska, Leszek Kozlowski, Jacek Malyszko
Severe adverse systemic drug events occur commonly as a result of treatment of cancer patients. Nephrotoxicity of chemotherapeutic agents remains a significant complication limiting the efficacy of the treatment. A variety of renal disease and electrolyte disorders can result from the drugs that are used to treat malignant disease. The kidneys are a major elimination pathway for many antineoplastic drugs and their metabolites. Tumour lysis syndrome, an emergency in haematooncology, occurs most often after the initiation of cytotoxic therapy in patients with high-grade lymphomas and acute lymphoblastic leukaemia...
October 6, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28331060/proximal-tubule-glutamine-synthetase-expression-is-necessary-for-the-normal-response-to-dietary-protein-restriction
#2
Hyun-Wook Lee, Gunars Osis, Mary E Handlogten, Jill W Verlander, I David Weiner
Dietary protein restriction has multiple benefits in kidney disease. Because protein intake is a major determinant of endogenous acid production, it is important that net acid excretion change in parallel during changes in dietary protein intake. Dietary protein restriction decreases endogenous acid production and ¬decreases urinary ammonia excretion, a major component of net acid excretion. Glutamine synthetase (GS) catalyzes the reaction of NH4+ and glutamate, which regenerates the essential amino acid glutamine and decreases net ammonia generation...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28330954/physiological-and-biochemical-changes-associated-with-acute-experimental-dehydration-in-the-desert-adapted-mouse-peromyscus-eremicus
#3
Lauren Kordonowy, Kaelina D Lombardo, Hannah L Green, Molly D Dawson, Evice A Bolton, Sarah LaCourse, Matthew D MacManes
Characterizing traits critical for adaptation to a given environment is an important first step in understanding how phenotypes evolve. How animals adapt to the extreme heat and aridity commonplace to deserts is an exceptionally interesting example of these processes, and has been the focus of study for decades. In contrast to those studies, where experiments are conducted on either wild animals or captive animals held in non-desert conditions, the study described here leverages a unique environmental chamber that replicates desert conditions for captive Peromyscus eremicus (cactus mouse)...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28325999/natural-sea-salt-consumption-confers-protection-against-hypertension-and-kidney-damage-in-dahl-salt-sensitive-rats
#4
Bog-Hieu Lee, Ae-Ri Yang, Mi Young Kim, Sara McCurdy, William A Boisvert
Although sea salts are widely available to consumers nowadays, whether its consumption over refined salt has any real health benefits is largely unknown. This study was conducted to compare hypertension-inducing propensity of natural sea salt (SS) to refined salt (RS) in a well-established animal model of hypertension. Five groups of male Dahl salt-sensitive rats were fed rat chow diet supplemented with various amounts of salt for 15 weeks. The groups were: control (CON, n = 10), 4% RS (RS4), 4% SS (SS4), 8% RS (RS8), 8% SS (SS8) (n = 12 for each group)...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28324127/development-of-certified-reference-materials-for-electrolytes-in-human-serum-gbw09124-09126
#5
Liuxing Feng, Jun Wang, Yanjie Cui, Naijie Shi, Haifeng Li, Hongmei Li
Three reference materials, at relatively low, middle, and high concentrations, were developed for analysis of the mass fractions of electrolytes (K, Ca, Na, Mg, Cl, and Li) in human serum. The reference materials were prepared by adding high purity chloride salts to normal human serum. The concentration range of the three levels is within ±20% of normal human serum. It was shown that 14 units with duplicate analysis is enough to demonstrate the homogeneity of these candidate reference materials. The statistical results also showed no significant trends in both short-term stability test for 1 week at 40 °C and long-term stability test for 14 months...
March 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28316939/application-of-established-pathophysiologic-processes-brings-greater-clarity-to-diagnosis-and-treatment-of-hyponatremia
#6
EDITORIAL
John K Maesaka, Louis J Imbriano, Nobuyuki Miyawaki
Hyponatremia, serum sodium < 135 mEq/L, is the most common electrolyte abnormality and is in a state of flux. Hyponatremic patients are symptomatic and should be treated but our inability to consistently determine the causes of hyponatremia has hampered the delivery of appropriate therapy. This is especially applicable to differentiating syndrome of inappropriate antidiuresis (SIAD) from cerebral salt wasting (CSW) or more appropriately, renal salt wasting (RSW), because of divergent therapeutic goals, to water-restrict in SIAD and administer salt and water in RSW...
March 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28315456/mechanisms-underlying-the-diuretic-effect-of-gomphrena-celosioides-mart-amaranthaceae
#7
Paulo Cesar de Paula Vasconcelos, Danilo Ramos Spessotto, Jane Vasconcelos Marinho, Marcos José Salvador, Arquimedes Gasparotto Junior, Candida Aparecida Leite Kassuya
ETHNOPHARMACOLOGICAL RELEVANCE: Gomphrena celosioides (Amaranthaceae) is a native medicinal plant found in Mato Grosso do Sul State that is used for treating urinary tract and kidney stones. This study aimed to evaluate the diuretic effects of ethanolic extract from G. celosioides (EEGC) on acute and extended diuresis to provide a pharmacological basis for its use in traditional medicine. AIM OF THE STUDY: To evaluate the diuretic and natriuretic activity of EEGC and its mechanism of action in an animal model...
March 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28301430/etiopathogenesis-of-nephrolithiasis-in-ulcerative-colitis-patients-with-the-ileal-pouch-anal-anastomosis
#8
Zubin Arora, Saurabh Mukewar, Rocio Lopez, Debra Camino, Bo Shen, Phillip Hall
BACKGROUND: Our previous study showed that nephrolithiasis is a common complication in ulcerative colitis patients after ileal pouch anal anastomosis (IPAA). However, the pathogenesis of nephrolithiasis in IPAA patients has not been studied. The aim of this study was to compare urine and serum metabolic compositions in IPAA patients with nephrolithiasis and controls with IPAA and no nephrolithiasis. METHODS: Using cross-sectional study design, serum and 24-hour urine metabolic compositions were compared between IPAA patients with nephrolithiasis (the study group) and those without (the control group)...
March 15, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28296940/direct-measurement-of-interaction-forces-between-bovine-serum-albumin-and-poly-ethylene-oxide-in-water-and-electrolyte-solutions
#9
Sergio M Acuña, José M Bastías, Pedro G Toledo
The net interaction between a probe tip coated with bovine serum albumin (BSA) protein and a flat substrate coated with poly(ethylene oxide) (PEO) polymer was measured directly on approach in water and electrolyte solutions using AFM. The approach force curve between the two surfaces was monotonically repulsive in water and in electrolyte solutions. At pH ~5, slightly above the isoelectric point (pI) of BSA, and at large distances, the force was dominated by electrostatic repulsion between the oxygen atoms of the incoming protein with those belonging to the ether groups of PEO...
2017: PloS One
https://www.readbyqxmd.com/read/28286814/trends-of-serum-electrolyte-changes-in-crush-syndrome-patients-of-bam-earthquake-a-cross-sectional-study
#10
Saeed Safari, Mehdi Eshaghzade, Iraj Najafi, Alireza Baratloo, Behrooz Hashemi, Mohammad Mehdi Forouzanfar, Farhad Rahmati
INTRODUCTION: Electrolyte imbalances are very common among crushed earthquake victims but there is not enough data regarding their trend of changes. The present study was designed to evaluate the trend of changes in sodium, calcium, and phosphorus ions among crush syndrome patients. METHODS: In this retrospective cross-sectional study, using the database of Bam earthquake victims, which was developed by Iranian Society of Nephrology following Bam earthquake, Iran, 2003, the 10-day trend of sodium, calcium, and phosphorus ions changes in > 15 years old crush syndrome patients was evaluated...
2017: Emergency (Tehran, Iran)
https://www.readbyqxmd.com/read/28282848/long-term-vaptan-treatment-of-idiopathic-siadh-in-an-octogenarian
#11
Stefan Büttner, Jürgen Bachmann, Helmut Geiger, Nicholas Obermüller
Hyponatremia is the most common and by far underestimated electrolyte disorder in clinical practice. Especially in elderly patients, treatment of symptomatic hyponatremia is challenging. Herein we describe the case of an octogenarian with recurrent symptomatic hyponatremia due to idiopathic syndrome of inappropriate antidiuretic hormone release (SIADH). Fluid restriction was insufficient to prevent repeated episodes of hyponatremia complicated by falls and coma. After introduction of a low-dose therapy with tolvaptan, serum sodium levels as well as the clinical condition were stable under vaptan therapy, without any relapse for more than six years now...
March 8, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28270894/the-effect-of-individualized-versus-standardized-parenteral-nutrition-on-body-weight-in-very-preterm-infants
#12
Vincent H M Evering, Peter Andriessen, Carola E P M Duijsters, Jeroen Brogtrop, Luc J J Derijks
BACKGROUND: This study was designed to evaluate whether standardizing total parenteral nutrition (TPN) is at least non-inferior to TPN with individualized composition in premature infants with a gestational age (GA) < 32 weeks. METHODS: In this retrospective cohort study, all preterm born in or transferred to Maxima Medical Center (MMC) within 24 hours after birth with a GA < 32 weeks were included. The individualized group (2011) was compared to the partially standardized group (2012) and completely standardized group (2014) consequently...
April 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28270645/kidney-function-in-patients-with-different-variants-of-beta-thalassemia
#13
Azar Nickavar, Azadeh Qmarsi, Shahla Ansari, Elham Zarei
INTRODUCTION: Renal involvement is a rare complication of β-thalassemia. Both tubular and glomerular dysfunction might occur in these patients. The aim of this study was to evaluate and compare kidney function in the major, intermedia, and minor variants of β-thalassemia. MATERIALS AND METHODS: Renal tubular and glomerular function of 72 patients with β-thalassemia (25 major, 23 intermedia, and 24 minor) were evaluated. Patients older than 40 years and those with chronic kidney disease, diabetes mellitus, congestive heart failure, associated infections, congenital anomalies of the kidney and urinary tract were excluded...
March 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28262846/antiseizure-effects-of-ketogenic-diet-on-seizures-induced-with-pentylenetetrazole-4-aminopyridine-and-strychnine-in-wistar-rats
#14
E O Sanya, A O Soladoye, O O Desalu, P M Kolo, L A Olatunji, J K Olarinoye
The ketogenic diet (KD) is a cheap and effective alternative therapy for most epilepsy. There are paucity of experimental data in Nigeria on the usefulness of KD in epilepsy models. This is likely to be responsible for the poor clinical acceptability of the diet in the country. This study therefore aimed at providing experimental data on usefulness of KD on seizure models.  The study used 64 Wistar rats that were divided into two dietary groups [normal diet (ND) and ketogenic diet (KD)]. Animal in each group were fed for 35days...
March 6, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/28262322/biochemical-and-anthropometric-correlates-of-bio-electrical-impedance-parameters-in-severely-malnourished-children-a-cross-sectional-study
#15
Tsinuel Girma, Anne-Louise Hother Nielsen, Pernille Kæstel, Alemseged Abdissa, Kim F Michaelsen, Henrik Friis, Jonathan C K Wells
INTRODUCTION: Despite expanding use of bio-impedance (BI), little is known about its pathophysiologic significance and biological correlates OBJECTIVE: Determine correlations of BI parameters with anthropometry and biomarkers of electrolyte homeostasis, inflammation and liver function in children with severe acute malnutrition (SAM). METHODS: We studied Ethiopian children with SAM (mid-arm circumference <11·0 cm or weight-for-height <70% of the NCHS growth reference median and/or nutritional oedema) at hospitalization...
February 24, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28255480/multiple-electrolyte-and-metabolic-emergencies-in-a-single-patient
#16
Caprice Cadacio, Phuong-Thu Pham, Ruchika Bhasin, Anita Kamarzarian, Phuong-Chi Pham
While some electrolyte disturbances are immediately life-threatening and must be emergently treated, others may be delayed without immediate adverse consequences. We discuss a patient with alcoholism and diabetes mellitus type 2 who presented with volume depletion and multiple life-threatening electrolyte and metabolic derangements including severe hyponatremia (serum sodium concentration [SNa] 107 mEq/L), hypophosphatemia ("undetectable," <1.0 mg/dL), and hypokalemia (2.2 mEq/L), moderate diabetic ketoacidosis ([DKA], pH 7...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28251822/tolvaptan-use-in-cancer-patients-with-hyponatremia-due-to-the-syndrome-of-inappropriate-antidiuretic-hormone-a-post-hoc-analysis-of-the-salt-1-and-salt-2-trials
#17
Richard J Gralla, Fatima Ahmad, Jaime D Blais, Joseph Chiodo, Wen Zhou, Linda A Glaser, Frank S Czerwiec
Hyponatremia is a common electrolyte disorder in cancer patients and has been associated with poor prognosis. A frequent cause of cancer-related hyponatremia is the syndrome of inappropriate antidiuretic hormone (SIADH). This study was a post hoc subgroup analysis of the SALT-1 (Study of Ascending Levels of Tolvaptan in Hyponatremia) and SALT-2 clinical trials. Hyponatremic subjects with SIADH and cancer received the oral selective vasopressin V2-receptor antagonist tolvaptan (n = 12) or matching placebo (n = 16) once-daily for 30 days...
March 2, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28243559/performance-of-colloidal-cds-sensitized-solar-cells-with-zno-nanorods-nanoparticles
#18
Anurag Roy, Partha Pratim Das, Mukta Tathavadekar, Sumita Das, Parukuttyamma Sujatha Devi
As an alternative photosensitizer in dye-sensitized solar cells, bovine serum albumin (BSA) (a nonhazardous protein) was used in the synthesis of colloidal CdS nanoparticles (NPs). This system has been employed to replace the commonly used N719 dye molecule. Various nanostructured forms of ZnO, namely, nanorod and nanoparticle-based photoanodes, have been sensitized with colloidal CdS NPs to evaluate their effective performance towards quantum dot sensitized solar cells (QDSSCs). A polysulphide (S x(2-))-based electrolyte and Cu x S counter electrode were used for cell fabrication and testing...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28242751/serum-uromodulin-and-mortality-risk-in-patients-undergoing-coronary-angiography
#19
Graciela E Delgado, Marcus E Kleber, Hubert Scharnagl, Bernhard K Krämer, Winfried März, Jürgen E Scherberich
The mucoprotein uromodulin is the most abundant protein in mammalian urine and has important roles in ion transport, maintenance of water and electrolyte balance, and clearance of bacteria from the urinary tract. Low urinary uromodulin concentrations have been associated with increased mortality risk. However, measuring uromodulin in urine has several preanalytic drawbacks, and sensitive assays for the detection of uromodulin in blood have become available. In this study, we investigated the association of serum uromodulin concentration with cardiovascular biomarkers and mortality risk in a large cohort of patients referred for coronary angiography...
February 27, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28240785/the-effect-of-urea-on-refractometric-total-protein-measurement-in-dogs-and-cats-with-azotemia
#20
Kelsey P Legendre, Mary Leissinger, Viviana Le Donne, Britton J Grasperge, Stephen D Gaunt
BACKGROUND: While protein is the predominant solute measured in plasma or serum by a refractometer, nonprotein substances also contribute to the angle of refraction. There is debate in the current literature regarding which nonprotein substances cause factitiously high refractometric total protein measurements, as compared to the biuret assay. OBJECTIVES: The purpose of the study was to determine if the blood of azotemic animals, specifically with increased blood urea concentration, will have significantly higher refractometric total protein concentrations compared to the total protein concentrations measured by biuret assay...
February 27, 2017: Veterinary Clinical Pathology
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