نتایج جستجو برای: tissue contamination

تعداد نتایج: 966631  

Journal: :Acta ophthalmologica 2013
Stephan J Linke Mau-Thek Eddy Jürgen Bednarz Otto H Fricke Birgit Wulff Ann-Sophie Schröder Andrea Hassenstein Maren Klemm Klaus Püschel Gisbert Richard Olaf J C Hellwinkel

PURPOSE To evaluate donor demographics, trends in donor tissue procurement and tissue storage over a long period. METHODS A retrospective, longitudinal, descriptive analysis was undertaken of data from the Hamburg Eye Bank Data Base (HEB-DB) that had been collected between 1981 and 2010. Data on 54 parameters of cornea donors [including clinical history, age, death cause, gender and death-to-...

2018
Alexa A. Pragman Tianmeng Lyu Joshua A. Baller Trevor J. Gould Rosemary F. Kelly Cavan S. Reilly Richard E. Isaacson Chris H. Wendt

BACKGROUND Oral taxa are often found in the chronic obstructive pulmonary disease (COPD) lung microbiota, but it is not clear if this is due to a physiologic process such as aspiration or experimental contamination at the time of specimen collection. METHODS Microbiota samples were obtained from nine subjects with mild or moderate COPD by swabbing lung tissue and upper airway sites during lun...

Journal: :The Journal of Experimental Medicine 1947
Isabel M. Morgan

By subcutaneous injection of central nervous tissue emulsified with adjuvants according to Freund's technique it has been possible to induce in the majority of monkeys an acute disseminated encephalomyelitis which is interpreted as an isoimmunization to CNS tissue. Positive reactions occurred only in response to CNS tissue containing white matter; i.e., cerebral white matter, spinal cord (wheth...

2004
Jeannie Wasserman Clarel Antoine Frank Silverman Bruce K. Young

CLINICAL CHEMISTRY, Vol. 27, No. 12, 1981 2071 displacement during head rotation and vaginal examinations, and amniotic fluid contamination may explain in vivo differences. Biological factors, reflecting blood and tissue fluid, might also affect the measurements, producing real differences in tissue and blood pH values. At present, because of these differences, in vivo continuous measurement of...

Journal: :Journal of medical genetics 1979
M Niazi D V Coleman J F Mowbray S Blunt

The presence of contaminating maternal cells in amniotic fluid is an important, though infrequent, cause of error in karyotyping the fetus. A method of detecting contaminating maternal cells in amniocentesis specimens by determining the HLA phenotype of the cells of amniotic fluid and the mother is described. Tissue typing of 15 amniocentesis specimens was performed, and in 14 cases the fetal o...

Journal: :Analytical biochemistry 1996
R S Balaban V K Mootha A Arai

A simple spectroscopic method for determining the cytochrome c oxidase, cytochrome a, a3, content in tissue and mitochondria samples independent of myoglobin or blood contamination is described. Using tissue homogenates solubilized in Triton X-100, this assay relies on the selective reduction of mitochondrial cytochromes by the action of potassium cyanide. Monitoring the optical absorbance of t...

Journal: :Bosnian journal of basic medical sciences 2013
Nikolay S Strelkov Nikolay A Kiryanov Pavel O Shklyaev Yury M Iryanov

The goal of our work was to study the changes in the bone tissue, bone marrow and surrounding tissues in animals during early stages of experimental osteomyelitis. Osteomyelitis was simulated in 30 infants rabbits aged 3-4 months whose body weight accounted 1200-1600 grams through the insertion of 5-6 million of aurococcus into the marrow channel of a shinbone. The study of bone marrow, bone ti...

Journal: :The British journal of ophthalmology 1999
E Pels G F Vrensen

BACKGROUND/AIMS Povidone-iodine (PVP -I) is applied for microbial decontamination of human eyes donated for transplantation. Concentrations and immersion times vary greatly. The effectiveness and toxicity of PVP-I were assessed for different decontamination protocols. METHODS Human donor eyes and corneas were immersed in different concentrations (5-100 mg/ml) of PVP-I for different times (2-3...

Journal: :IJU case reports 2023

Introduction Skin tissue contamination within transcutaneous visceral organ biopsies is seldom found. We encountered a rare case of extramammary Paget's disease incidentally diagnosed by prostate biopsy during active surveillance for cancer. Case presentation A 71-year-old Japanese patient was with cancer, and selected. After 1 year, performed transperitoneal approach, 16 cores were taken. One ...

Journal: :Tree physiology 2007
Sandra Hermle Pierre Vollenweider Madeleine S Günthardt-Goerg Carolyn J McQuattie Rainer Matyssek

Fast-growing trees such as Salix viminalis L. and Populus tremula L. are well suited to phytoremediate heavy metal contaminated soils. However, information on tree performance, particularly leaf function, under conditions of heavy metal contamination is scarce. We used yearly coppiced saplings of S. viminalis and P. tremula growing in model ecosytems to test four hypotheses: (1) heavy metal con...

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