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https://www.readbyqxmd.com/read/27901544/quantitative-urinalysis-using-aggregation-induced-emission-bioprobes-for-monitoring-chronic-kidney-disease
#1
Tong Chen, Ni Xie, Lucia Viglianti, Yabin Zhou, Hui Tan, Ben Zhong Tang, Youhong Tang
Early detection and appropriate management of chronic kidney disease can reduce the progression of kidney failure and cardiovascular disease. The urine albumin to creatinine ratio (UACR) test is a standard urine test for identifying individuals at high risk of developing progressive kidney disease. In this study, IDATPE, a novel fluorescent probe with aggregation-induced emission (AIE) features, is successfully developed for creatinine detection and quantitation. An excellent correlation between fluorescent light intensity and creatinine concentration is achieved...
November 30, 2016: Faraday Discussions
https://www.readbyqxmd.com/read/27875647/what-pacemakers-can-teach-us-about-the-ethics-of-maintaining-artificial-organs
#2
Katrina Hutchison, Robert Sparrow
One day soon it may be possible to replace a failing heart, liver, or kidney with a long-lasting mechanical replacement or perhaps even with a 3-D printed version based on the patient's own tissue. Such artificial organs could make transplant waiting lists and immunosuppression a thing of the past. Supposing that this happens, what will the ongoing care of people with these implants involve? In particular, how will the need to maintain the functioning of artificial organs over an extended period affect patients and their doctors and the responsibilities of those who manufacture such devices? Drawing on lessons from the history of the cardiac pacemaker, this article offers an initial survey of the ethical issues posed by the need to maintain and service artificial organs...
November 2016: Hastings Center Report
https://www.readbyqxmd.com/read/27866810/histological-characterisation-of-visceral-changes-in-a-patient-with-type-2-gaucher-disease-treated-with-enzyme-replacement-therapy
#3
Yuko Tezuka, Mitsumasa Fukuda, Shohei Watanabe, Takeshi Nakano, Kentaro Okamoto, Kazuyo Kuzume, Yoshiaki Yano, Mariko Eguchi, Minenori Ishimae, Eiichi Ishii, Tatsuhiko Miyazaki
Gaucher disease is a lysosomal storage disease caused by deficiency of glucocerebrosidase and accumulation of glucocerebroside. Three major sub-types have been described, type 2 is an acute neurological form that exhibits serious general symptoms and poor prognosis, compared with the other types. This case was a girl diagnosed with type 2 Gaucher disease at 12months of age who presented with poor weight gain from infancy, stridor, hypertonia, hepatosplenomegaly, trismus and an eye movement disorder. Enzyme replacement therapy (ERT) was administered, but she had frequent myoclonus and developmental regression...
November 12, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27863865/solubility-of-indium-tin-oxide-in-simulated-lung-and-gastric-fluids-pathways-for-human-intake
#4
Jens Christian Østergård Andersen, Alastair Cropp, Diane Caroline Paradise
From being a metal with very limited natural distribution, indium (In) has recently become disseminated throughout the human society. Little is known of how In compounds behave in the natural environment, but recent medical studies link exposure to In compounds to elevated risk of respiratory disorders. Animal tests suggest that exposure may lead to more widespread damage in the body, notably the liver, kidneys and spleen. In this paper, we investigate the solubility of the most widely used In compound, indium-tin oxide (ITO) in simulated lung and gastric fluids in order to better understand the potential pathways for metals to be introduced into the bloodstream...
November 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27847969/-migration-speed-of-uropathogens-determination-in-the-ureteral-splint-in-a-practice-like-in-vitro-model
#5
H Braunwarth, F H H Brill, J Steinmann, D Hegeholz, W Droste
BACKGROUND: A urostomy with an ileum conduit or a skin fistula leads to a high infection risk for the kidneys and the ureter of the patient. Therefore, the prevention of retrograde colonization of the artificial drain (splint) with e. g. contaminated urine is the most important objective of infection prevention measurements. We performed an in vitro experiment to determine the migration speed of clinically relevant bacteria in a commercially available splint catheter system. METHODS: The migration speed of bacteria in commonly used splint catheters was determined in a practice-like in vitro model...
November 15, 2016: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/27777049/molecular-changes-in-appearance-of-a-cancer-cell-among-normal-hek293t-cells
#6
Jihye Chung, Shunsuke Aburaya, Wataru Aoki, Mitsuyoshi Ueda
In very early stages of cancer development, one or a few cells expressing cancer-associated genes appear among a much larger number of surrounding normal cells. To analyze the molecular changes induced by this co-existence, we artificially prepared transformed cells with complete loss of tumor suppressor gene, SCRIB, among normal human embryonic kidney (HEK293T) cells. A cell strain with SCRIB-knockout was successfully constructed by using Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 nuclease system and co-cultured with normal cells...
October 21, 2016: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/27770197/the-endogenous-development-and-pathogenicity-of-eimeria-anseris-kotlan-1932-in-domestic-goslings
#7
Hongqin Song, Dandan Liu, Jinjun Xu, Lili Wu, Yabin Dai, Mei Liu, Jianping Tao
Twenty-one, 25-day-old, artificially reared, coccidia-free goslings (Anser cygnoides var. domestica) were inoculated orally with 0.5 × 10(4), 1 × 10(4), or 100 × 10(4) sporulated oocysts of Eimeria anseris and sacrificed at intervals from 24 to 216 h post-inoculation (HPI). Nine uninfected goslings served as negative controls. Parts of the visceral organs from goslings, including the intestines, kidneys, and liver, were fixed, sectioned, and observed microscopically. The results revealed that two generations of meronts occurred in the life cycle of E...
October 22, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27767984/the-optimum-hematocrit
#8
Walter H Reinhart
The hematocrit (Hct) determines the oxygen carrying capacity of blood, but also increases blood viscosity and thus flow resistance. From this dual role the concept of an optimum Hct for tissue oxygenation has been derived. Viscometric studies using the ratio Hct/blood viscosity at high shear rate showed an optimum Hct of 50-60% for red blood cell (RBC) suspensions in plasma. For the perfusion of an artificial microvascular network with 5-70μm channels the optimum Hct was 60-70% for high driving pressures. With lower shear rates or driving pressures the optimum Hct shifted towards lower values...
October 21, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27765466/-wasting-in-chronic-kidney-disease-refeeding-techniques-and-artificial-nutrition-practices
#9
Céline Pasian, Raymond Azar, Denis Fouque
Protein energy wasting (PEW) is an independent factor associated with morbi-mortality in chronic kidney disease. Wasting is particularly common in chronic diseases of organs such as kidney disease with a major impact at the stage of dialysis. It covers 20 to 70% of patients diagnosed with chronic kidney disease according to the degree of evolution of the disease and the diagnostic method used patients. Mechanisms of PEW are based mainly on anorexia and metabolic abnormalities caused by kidney disease. Nutritional treatment differs depending on the stage of the kidney disease acute or chronic treated whether or not by dialysis...
October 17, 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27730390/ann-prediction-of-metabolic-syndrome-a-complex-puzzle-that-will-be-completed
#10
Darko Ivanović, Aleksandar Kupusinac, Edita Stokić, Rade Doroslovački, Dragan Ivetić
The diagnosis of metabolic syndrome (MetS) has a leading role in the early prevention of chronic disease, such as cardiovascular disease, type 2 diabetes, cancers and chronic kidney disease. It would be very greatful that MetS diagnosis can be predicted in everyday clinical practice. This paper presents artificial neural network (ANN) prediction of the diagnosis of MetS that includes solely non-invasive, low-cost and easily-obtained diagnostic methods. This solution can extract the risky persons and suggests complete tests only on them by saving money and time...
December 2016: Journal of Medical Systems
https://www.readbyqxmd.com/read/27713104/quantitative-morphometric-study-of-the-subaxial-cervical-vertebrae-end-plate
#11
Hang Feng, Xiangyi Fang, Dageng Huang, Chengcheng Yu, Songchuan Zhao, Dingjun Hao
BACKGROUND CONTEXT: Cervical disc arthroplasty has been gradually adopted as an alternative for the treatment of cervical degenerative disease. However, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical end plates. PURPOSE: This study aimed to accurately and comprehensively quantify the three-dimensional (3D) anatomic morphology of the cervical vertebral end plate and provide a theoretical basis for designing appropriate disc prostheses...
October 3, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27704873/hyperoside-ameliorates-glomerulosclerosis-in-diabetic-nephropathy-by-downregulating-mir-21
#12
Le Zhang, Siyi He, Fan Yang, Hua Yu, Wei Xie, Qian Dai, Di Zhang, Xiaoqin Liu, Shiwen Zhou, Kebin Zhang
The purpose of this study was to investigate the therapeutic effects of hyperoside (Hyp) on glomerulosclerosis in diabetic nephropathy and its underlying mechanisms. Blood glucose, kidney mass, and renal function of mice were measured. Renal morphology was observed using hematoxylin and eosin, periodic acid - Schiff's, and Masson's trichrome stain. Fibronectin (FN) and collagen IV (COL IV) in kidney were determined by Western blot and immunohistochemical studies. Matrix metalloproteinases (MMP)-2 and -9 and tissue inhibitors of metalloproteinase (TIMP)-1 in renal tissues were detected on both the mRNA and protein levels...
July 19, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27665406/-renal-transplantation-in-2046-future-and-perspectives
#13
M-O Timsit, J Branchereau, R Thuret, F Kleinclauss
OBJECTIVES: To report major findings that may build the future of kidney transplantation. MATERIAL AND METHODS: Relevant publications were identified through Medline (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) database from 1960 to 2016 using the following keywords, in association, "bio-engineering; heterotransplantation; immunomodulation; kidney; regenerative medicine; xenotransplantation". Articles were selected according to methods, language of publication and relevance...
September 21, 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/27642739/-an-unexpected-cause-of-dyspnea-and-degradation-of-performance
#14
Peter Seizer, Michaela Rockenstiehl, Suzanne Fateh-Moghadam, Susanne Haen, Ferruh Artunc, Martin R Müller, Azadeh Ebrahimi, Reimer Riessen, Meinrad Gawaz, Falko Fend, Michael Haap
HISTORY AND ADMISSION FINDINGS: A 55-year old man suffers from progressive, distinctive dyspnoea and physical weakness since 5 days. Due to ST-segment changes in the ECG and a positive troponin-test, the primary care physician initiates an hospitalization. INVESTIGATIONS: After admission, the laboratory tests confirm the elevated troponin-values, and show additionally elevated pro-brain-natriuric-peptide-values. The coronary angiography presents a highly reduced left ventricular function, an aortic insufficiency III° and a coronary heart disease...
September 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27617553/low-cost-silicone-renal-replicas-for-surgical-training-technical-note
#15
T Smektala, A Goląb, M Królikowski, M Slojewski
OBJECTIVE: The aim of this brief report was to present and evaluate workflow of preparation of lowcost individual silicone replicas of kidneys for laparoscopic training and surgical simulation of difficult nephron sparing surgeries. METHODS: The work flow consists of four steps: 1.Image segmentation; 2.Casting mould designing; 3.Manufacturing of casting mould; 4.Silicone replica casting. To evaluate the cost and time required to execute the presented method, authors prepared 5 silicone models for 5 consecutive patients undergoing laparoscopic kidney tumorectomy due to renal cell cancer...
September 2016: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/27613513/a-missense-mutation-in-solute-carrier-family-12-member-1-slc12a1-causes-hydrallantois-in-japanese-black-cattle
#16
Shinji Sasaki, Kiyotoshi Hasegawa, Tomoko Higashi, Yutaka Suzuki, Sumio Sugano, Yasuaki Yasuda, Yoshikazu Sugimoto
BACKGROUND: Hydrallantois is the excessive accumulation of fluid within the allantoic cavity in pregnant animals and is associated with fetal mortality. Although the incidence of hydrallantois is very low in artificial insemination breeding programs in cattle, recently 38 cows with the phenotypic appearance of hydrallantois were reported in a local subpopulation of Japanese Black cattle. Of these, 33 were traced back to the same sire; however, both their parents were reported healthy, suggesting that hydrallantois is a recessive inherited disorder...
2016: BMC Genomics
https://www.readbyqxmd.com/read/27591740/a-kidney-injury-molecule-1-kim-1-gene-reporter-in-a-mouse-artificial-chromosome-the-responsiveness-to-cisplatin-toxicity-in-immortalized-mouse-kidney-s3-cells
#17
Kenji Kokura, Yasushi Kuromi, Takeshi Endo, Naohiko Anzai, Yasuhiro Kazuki, Mitsuo Oshimura, Tetsuya Ohbayashi
BACKGROUND: Kidney injury molecule-1 (Kim-1) has been validated as a urinary biomarker for acute and chronic renal damage. The expression of Kim-1 mRNA is also activated by acute kidney injury induced by cisplatin in rodents and humans. To date, the measurement of Kim-1 expression has not fully allowed the detection of in vitro cisplatin nephrotoxicity in immortalized culture cells such as human kidney-2 cells and immortalized proximal tubular epithelial cells. METHODS: We measured the augmentation of Kim-1 mRNA expression after cisplatin addition using immortalized S3 cells established from the kidneys of transgenic mice harboring temperature-sensitive large T antigen from Simian virus 40...
September 3, 2016: Journal of Gene Medicine
https://www.readbyqxmd.com/read/27575985/a-step-towards-clinical-application-of-acellular-matrix-a-clue-from-macrophage-polarization
#18
Astgik Petrosyan, Stefano Da Sacco, Nikita Tripuraneni, Ursula Kreuser, Maria Lavarreda-Pearce, Riccardo Tamburrini, Roger E De Filippo, Giuseppe Orlando, Paolo Cravedi, Laura Perin
The outcome of tissue engineered organ transplants depends on the capacity of the biomaterial to promote a pro-healing response once implanted in vivo. Multiple studies, including ours, have demonstrated the possibility of using the extracellular matrix (ECM) of animal organs as platform for tissue engineering and more recently, discarded human organs have also been proposed as scaffold source. In contrast to artificial biomaterials, natural ECM has the advantage of undergoing continuous remodeling which allows adaptation to diverse conditions...
August 26, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/27557726/strict-blood-glucose-control-by-an-artificial-endocrine-pancreas-during-hepatectomy-may-prevent-postoperative-acute-kidney-injury
#19
Naoji Mita, Shinji Kawahito, Tomohiro Soga, Kazumi Takaishi, Hiroshi Kitahata, Munehide Matsuhisa, Mitsuo Shimada, Hiroyuki Kinoshita, Yasuo M Tsutsumi, Katsuya Tanaka
The aim of the present study was to evaluate the usefulness of a closed-loop system (STG-55; Nikkiso, Tokyo, Japan), a type of artificial endocrine pancreas for the continuous monitoring and control of intraoperative blood glucose, for preventing postoperative acute kidney injury (AKI) in patients undergoing hepatectomy. Thirty-eight patients were enrolled in this study. Glucose concentrations were controlled with either a manual injection of insulin based on a commonly used sliding scale (manual insulin group, n = 19) or the programmed infusion of insulin determined by the control algorithm of the artificial endocrine pancreas (programmed insulin group, n = 19)...
August 24, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27496422/assessment-of-the-hemostatic-parameters-and-platelet-function-on-thromboelastometry-and-impedance-aggregometry-in-hemodialysis-patients-qualified-for-kidney-transplantation-preliminary-report
#20
J Pluta, B Nicińska, M Grzeszczyk, M Kołacz, L Jureczko, A Kwiatkowski, M Durlik, J Trzebicki
BACKGROUND: Chronic kidney disease is one of the medical conditions that affect hemostasis. Patients undergoing hemodialysis present both hemorrhagic and prothrombotic tendencies. Platelet adhesion to the artificial surface of the dialyzer's membrane, blood vessel endothelial wall disruption, and quantitative and qualitative changes in clothing factors are thought to be causative agents of the above-mentioned conditions. Thromboelastometry and impedance aggregometry enable precise assessment of clot formation and platelet function abnormalities, including changes related to chronic renal failure in patients undergoing renal replacement therapy...
June 2016: Transplantation Proceedings
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