keyword
MENU ▼
Read by QxMD icon Read
search

Renal function reserve

keyword
https://www.readbyqxmd.com/read/28640982/mechanisms-of-sphingosine-1-phosphate-mediated-vasoconstriction-of-rat-afferent-arterioles
#1
Zhengrong Guan, Fuchenchu Wang, Xiangqin Cui, Edward W Inscho
AIM: Sphingosine-1-phosphate (S1P) influences resistance vessel function and is implicated in renal pathological processes. Previous studies revealed that S1P evoked potent vasoconstriction of the preglomerular microvasculature, but the underlying mechanisms remain incompletely defined. We postulated that S1P-mediated preglomerular microvascular vasoconstriction involves activation of voltage-dependent L-type calcium channels (L-VDCC) and the rho/rho kinase pathway. METHODS: Afferent arteriolar reactivity was assessed in vitro using the blood-perfused rat juxtamedullary nephron preparation and diameter was measured during exposure to physiological and pharmacological agents...
June 22, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28632935/impact-of-preoperative-calculation-of-nephron-volume-loss-on-future-of-partial-nephrectomy-techniques-planning-a-strategic-roadmap-for-improving-functional-preservation-and-securing-oncological-safety
#2
Koon Ho Rha, Ali Abdel Raheem, Sung Yul Park, Kwang Hyun Kim, Hyung Joon Kim, Kyo Chul Koo, Young Deuk Choi, Byung Ha Jung, Sang Kon Lee, Won Ki Lee, Jayram Krishnan, Tae Young Shin, Jin-Seon Cho
OBJECTIVES: To assess the correlation of resected and ischaemised volume (RAIV), which is preoperatively calculated volume of nephron loss (VNL), with the amount of postoperative renal function (PRF) decline after minimally invasive partial nephrectomy (PN) in a multi-institutional dataset. SUBJECTS AND METHODS: We identified 348 patients from March 2005 to December 2013 at six institutions. Data on all cases of laparoscopic (n = 85) and robotic PN (n = 263) performed were retrospectively gathered...
June 20, 2017: BJU International
https://www.readbyqxmd.com/read/28627733/response-of-renal-tubular-cells-to-differential-types-and-doses-of-calcium-oxalate-crystals-integrative-proteome-network-analysis-and-functional-investigations
#3
Arada Vinaiphat, Siripat Aluksanasuwan, Juthatip Manissorn, Suchitra Sutthimethakorn, Visith Thongboonkerd
We have previously identified changes in the cellular proteome of renal tubular cells induced by low-dose (100 μg/ml) and high-dose (1,000 μg/ml) calcium oxalate monohydrate (COM) and dihydrate (COD) crystals. However, the functional significance of such expression data remained unclear. In this study, we performed comparative analyses and functional investigations of four proteomic datasets to define potential mechanisms by which renal tubular cells responded to differential crystal types and doses. The data showed that high-dose induced greater changes than low-dose, whereas COM induced more changes than COD...
June 19, 2017: Proteomics
https://www.readbyqxmd.com/read/28627094/-spectrum-of-hepatitis-b-and-renal-involvement
#4
Apurva S Shah, Deepak N Amarapurkar
Renal involvement in hepatitis B occurs in various spectrums and its knowledge is important for clinicians in management of patients. The renal diseases most commonly associated with hepatitis B virus (HBV) infection include membranous nephropathy, membranoproliferative glomerulonephritis, and Polyarteritis nodosa. The widespread use of hepatitis B vaccination has decreased the incidence of HBV-related renal diseases. The incidence of HBV infection in dialysis patients has significantly decreased over the past few decades due to screening of blood products for hepatitis B surface antigen (HBsAg) and hepatitis B core antibody, implementation of infection control measures and hepatitis B vaccination...
June 19, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28622013/acetazolamide-usage-in-severe-chronic-obstructive-pulmonary-disease-pros-and-cons
#5
Rosemary Adamson, Erik R Swenson
Acetazolamide is a carbonic anhydrase (CA) inhibitor sometimes used as a respiratory stimulant for patients with COPD with the goal of improving oxygenation, reducing carbon dioxide retention and aiding liberation from mechanical ventilation and/or attempting to correct a metabolic alkalosis. However, the net effect of CA inhibition is multifactorial and complex since CA is inhibited in many tissues that may negatively affect the patient with lung disease. The full impact of acetazolamide and other CA inhibitors depends critically on dosing, age, and pulmonary, renal, hepatic, hematological, and respiratory muscle function and reserves...
June 16, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28621442/dendritic-cell-based-immunotherapy-evokes-potent-anti-tumor-immune-responses-in-cd105-human-renal-cancer-stem-cells
#6
Xiao-Fei Zhang, De-Sheng Weng, Ke Pan, Zi-Qi Zhou, Qiu-Zhong Pan, Jing-Jing Zhao, Yan Tang, Shan-Shan Jiang, Chang-Long Chen, Yong-Qiang Li, Hong-Xia Zhang, Alfred E Chang, Max S Wicha, Yi-Xin Zeng, Qiao Li, Jian-Chuan Xia
Cancer stem cells (CSCs) are responsible for tumor initiation, progression, and resistance to therapeutic agents; they are usually less sensitive to conventional cancer therapies, and could cause tumor relapse. An ideal therapeutic strategy would therefore be to selectively target and destroy CSCs, thereby preventing tumor relapse. The aim of the present study was to evaluate the effectiveness of dendritic cells (DCs) pulsed with antigen derived from CD105+ human renal cell carcinoma(RCC) CSCs against renal cancer cells in vitro and in vivo...
June 16, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28612496/rin1-promotes-renal-cell-carcinoma-malignancy-by-activating-egfr-signalling-through-rab25
#7
Zi-Hao Feng, Yong Fang, Liang-Yun Zhao, Jun Lu, Yong-Qian Wang, Zhen-Hua Chen, Yong Huang, Jin-Huan Wei, Yan-Ping Liang, Jun-Jie Cen, Yi-Hui Pan, Bing Liao, Wei Chen, Jun-Hang Luo
We previously identified the important role of RIN1 expression in the prognosis of clear cell renal cell carcinoma (ccRCC). The role of RIN1 in ccRCC malignancy and underlying molecular mechanisms remain unclear. Here we report that ccRCC cells and tissues expressed more RIN1 than normal controls. Gain- and loss-of-function studies demonstrated that RIN1 enhanced ccRCC cell growth, migration and invasion abilities in vitro and promoted tumor growth and metastasis in vivo. Mechanistic studies revealed that RIN1 has an activating effect on EGFR signalling in ccRCC...
June 14, 2017: Cancer Science
https://www.readbyqxmd.com/read/28603900/mitochondrial-point-mutation-m-3243a%C3%A2-%C3%A2-g-associates-with-lower-bone-mineral-density-thinner-cortices-and-reduced-bone-strength-a-case-control-study
#8
Jakob Høgild Langdahl, Anja Lisbeth Frederiksen, Stinus Jørn Hansen, Per Heden Andersen, Knud Bonnet Yderstraede, Morten Dunø, John Vissing, Morten Frost
Mitochondrial dysfunction is associated with several clinical manifestations including diabetes, neurological disorders, renal and hepatic diseases and myopathy. While mitochondrial dysfunction is associated with increased bone resorption and decreased bone formation in mouse models, effects of alterations in mitochondrial function on bone remodelling and mass have not been investigated in humans. We recruited 45 carriers (29 females, 16 males) with the m.3243A > G mutation and healthy controls matched for gender, age, height and menopausal status...
June 11, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28600880/klotho-lacks-a-fgf23-independent-role-in-mineral-homeostasis
#9
Olena Andrukhova, Jessica Bayer, Christiane Schüler, Ute Zeitz, Sathish K Murali, Sibel Ada, Jose M Alvarez-Pez, Alina Smorodchenko, Reinhold G Erben
Fibroblast growth factor-23 (FGF23) is a bone-derived hormone regulating vitamin D hormone production and renal handling of minerals by signaling through a FGF receptor/αKlotho (Klotho) receptor complex. Whether Klotho has FGF23-independent effects on mineral homeostasis is a controversial issue. Here, we aimed to shed more light on this controversy by comparing male and female triple knockout mice with simultaneous deficiency in Fgf23 and Klotho and a nonfunctioning vitamin D receptor (VDR) (Fgf23/Klotho/VDR) with double (Fgf23/VDR, Klotho/VDR, and Fgf23/Klotho) and single Fgf23, Klotho and VDR mutants...
June 10, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28592624/prolonged-pemetrexed-infusion-plus-gemcitabine-in-refractory-metastatic-colorectal-cancer-preclinical-rationale-and-phase-ii-study-results
#10
Alessandro Passardi, Francesca Fanini, Livia Turci, Flavia Foca, Paola Rosetti, Silvia Ruscelli, Andrea Casadei Gardini, Martina Valgiusti, Claudio Dazzi, Maurizio Marangolo
LESSONS LEARNED: Difficulties in translating in vitro results into clinical practice are inevitable.Further efforts to verify the efficacy of alternative schedules of pemetrexed in solid tumors are encouraged. BACKGROUND: We investigated the cytotoxic activity of pemetrexed in combination with several drugs (gemcitabine, carboplatin, vinorelbine, and mitomycin C) using different exposure schedules in three colon cancer cell lines. The best results were obtained with the following schedule: a prolonged pemetrexed exposure followed by a 48-hour wash-out and then gemcitabine...
June 7, 2017: Oncologist
https://www.readbyqxmd.com/read/28590009/effect-of-rmnsod-on-sodium-reabsorption-in-renal-proximal-tubule-in-ochratoxin-a-treated-rats
#11
Sara Damiano, Maria Valeria Puzio, Caterina Squillacioti, Nicola Mirabella, Enrica Zona, Aldo Mancini, Antonella Borrelli, Carlo Astarita, Silvia Boffo, Antonio Giordano, Luigi Avallone, Salvatore Florio, Roberto Ciarcia
Ochratoxin A (OTA) is a mycotoxin produced by Aspergillus and Penicillium that represent toxic real threat for human beings and animal health. In this study we evaluated the effect of a new recombinant mitochondrial manganese containing superoxide dismutase (rMnSOD) on oxidative stress and on the alterations of fluid reabsorption in renal proximal tubule (PT) as possible causes of OTA nephrotoxicity. Finally, we have measured the concentration of O2(-) in the kidney through dihydroethidium assay (DHE) and nitric oxide (NO) concentration through nitrites and nitrates assay...
June 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28586095/cmv-drives-the-expansion-of-highly-functional-memory-t-cells-expressing-nk-cell-receptors-in-renal-transplant-recipients
#12
Nandina Makwana, Bree Foley, Sonia Fernandez, Silvia Lee, Ashley Irish, Hanspeter Pircher, Patricia Price
Cytomegalovirus (CMV) is a common opportunistic infection encountered in renal transplant recipients (RTRs) and may be reactivated without symptoms at any time post-transplant. We describe how active and latent CMV affect T-cell subsets in RTRs who are stable on maintenance therapy. T-cell responses to CMV were assessed in RTRs (n = 54) >2 years post-transplant, and healthy controls (n = 38). Seven RTRs had CMV DNA detectable in plasma. CMV antibody and DNA aligned with increased proportions of CD8+ T cells and reduced CD4/CD8 ratios...
June 6, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28582797/the-detrimental-impact-of-persistent-versus-an-isolated-occurrence-of-de-novo-donor-specific-antibodies-on-intermediate-term-renal-transplant-outcomes
#13
Jennifer M Loucks-DeVos, Todd N Eagar, A Osama Gaber, Samir J Patel, Larry D Teeter, Edward A Graviss, Richard J Knight
BACKGROUND: De novo donor specific antibodies (dnDSA) after renal transplant are associated with acute rejection (AR) and graft loss, yet most recipients with dnDSA have stable function and no AR. We assessed whether the persistence of dnDSA increased the risk of a detrimental outcome. METHODS: A single-center review of renal transplant recipients monitored for dnDSA at multiple time points post-transplant. An Isolated dnDSA was defined as one positive dnDSA and no additional positive tests, whereas ≥2 positive dnDSA was defined as persistent dnDSA...
June 5, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28582490/impact-of-minimally-invasive-extracorporeal-circuits-on-octogenarians-undergoing-coronary-artery-bypass-grafting-have-we-been-looking-in-the-wrong-direction-%C3%A2
#14
Aschraf El-Essawi, Ingo Breitenbach, Benjamin Haupt, Rene Brouwer, Hassina Baraki, Wolfgang Harringer
OBJECTIVES: Minimally invasive extracorporeal circuits (MiECCs) aim at the preservation of physiologic reserves, the impact of which is expected to be most evident in patients in whom these are depleted. In this context, octogenarians present a subpopulation of specific interest. METHODS: Based on the type of the utilized ECC, we performed a retrospective comparison between all octogenarians ( n  = 324) who received a primary coronary artery bypass in our institution from 2003 until 2010...
June 3, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28581202/switch-to-an-everolimus-facilitated-cyclosporine-a-sparing-immunosuppression-improves-glycemic-control-in-selected-kidney-transplant-recipients
#15
Florian Kälble, Jörg Seckinger, Matthias Schaier, Christian Morath, Vedat Schwenger, Martin Zeier, Claudia Sommerer
BACKGROUND: Mammalian target of rapamycin inhibitors (mToRi) allow calcineurin inhibitor (CNI) sparing therapy in renal transplant recipients with possible beneficial effects on the long-term allograft function and cardiovascular risk. The influence of mToRi on glucose metabolism is still under discussion. METHODS: In a retrospective analysis, renal allograft recipients switched from a cyclosporine A (CsA) to an everolimus (EVR) based immunosuppression in the first year after transplantation were compared with patients on continued CsA treatment...
June 5, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28581186/prevalence-of-chronic-kidney-disease-in-patients-with-chronic-hepatitis-b-a-cross-sectional-survey
#16
Ling Ning, Weiyin Lin, Xiaoyun Hu, Fan Rong, Xieer Liang, Yaobo Wu, Sheng Shen, Rui Yu, Jian Sun, Jinlin Hou
Renal safety is a major concern during long-term antiviral treatment for chronic hepatitis B (CHB). This study aimed to investigate the prevalence of chronic kidney disease (CKD) in patients with CHB that had been treated with antiviral therapy. This was a single center, cross-sectional study in a real-life cohort in which all patients received antiviral treatment. Serum creatinine-based equations from the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) were used to estimate the glomerular filtration rate (GFR)...
June 5, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28564273/kidney-transplantation-from-donors-with-rhabdomyolysis-and-acute-renal-failure
#17
Chuan-Bao Chen, Yi-Tao Zheng, Jian Zhou, Ming Han, Xiao-Ping Wang, Xiao-Peng Yuan, Chang-Xi Wang, Xiao-Shun He
Rhabdomyolysis in deceased donors usually causes acute renal failure (ARF), which may be considered a contraindication for kidney transplantation. From January 2012 to December 2016, 30 kidneys from 15 deceased donors with severe rhabdomyolysis and ARF were accepted for transplantation at our center. The peak serum creatinine kinase, myoglobin, and serum creatinine of the these donors was 15569 ± 8597 U/L, 37092 ± 42100 μg/L, and 422 ± 167 μmol/L, respectively. Two donors received continuous renal replacement therapy due to anuria...
May 31, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28564127/impact-of-terlipressin-infusion-during-and-after-live-donor-liver-transplantation-on-incidence-of-acute-kidney-injury-and-neutrophil-gelatinase-associated-lipocalin-serum-levels-a-randomized-controlled-trial
#18
Mohamed Abdelrauf Kandil, Khalid Mousa Abouelenain, Ayman Alsebaey, Hanaa Said Rashed, Mohamed Helmi Afifi, Mohamed Abdelmoneem Mahmoud, Khaled Ahmed Yassen
Acute kidney injury (AKI) with liver transplantation is not uncommon. Impact of Terlipressin infusion on AKI, haemodynamics and plasma concentration of Neutrophil Gelatinase Associated Lipocalin (NGAL) was studied METHODS: Patients (n=50) were randomized (NCT02059460, USA) into 2 equal groups; Terlipressin vs Controls. Terlipressin (1-4 μg/kg/h) was administrated for 5 days. Intraoperative Transoesophageal Doppler for haemodynamic management. Renal functions, peak portal vein blood flow velocity (PPV) and hepatic artery resistive index (HARI) were recorded...
May 31, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28561517/malakoplakia-after-kidney-transplantation-case-report-and-literature-review
#19
John Fredy Nieto-Ríos, Isabel Ramírez, Mónica Zuluaga-Quintero, Lina María Serna-Higuita, Federico Gaviria-Gil, Alejandro Velez-Hoyos
Malakoplakia is a granulomatous disease associated with an infectious etiology, usually involving the urinary tract. It reveals itself as a recurrent urinary tract infection (r-UTI), and in some cases, it is associated with impairment of renal function. Immunosuppression is one of its main associated factors, and it has been increasingly described in patients with solid organ transplantation (SOT), mainly kidney transplantation. Macroscopically, it can form masses and sometimes it may be confused with neoplasia, which is why histological findings are fundamental for the diagnosis...
May 31, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28561324/curcumin-ameliorates-kidney-function-and-oxidative-stress-in-experimental-chronic-kidney-disease
#20
Badreldin H Ali, Suhail Al-Salam, Yousuf Al Suleimani, Jamila Al Kalbani, Shadia Al Bahlani, Mohammed Ashique, Priyadarsini Manoj, Buthaina Al Zhili, Nadia Al Abri, Heba T Naser, Javed Yasin, Abderrahim Nemmar, Mohamed Al Za'abi, Christina Hartmann, Nicole Schupp
Chronic kidney disease (CKD) is known to involve inflammation, oxidative stress and apoptosis. Here, we investigated the impact of curcumin (diferuloyl methane, a phenolic turmeric pigment), which has strong anti-oxidant, anti-inflammatory and anti-apoptotic activities on kidney structure and function in rats with adenine-induced CKD. Rats were treated for 5 weeks with adenine to induce CKD-like renal damage and combined with three doses of curcumin. Markers of kidney function and oxidative stress were quantified in plasma, urine, renal homogenates and on kidney tissue...
May 31, 2017: Basic & Clinical Pharmacology & Toxicology
keyword
keyword
84915
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"