Results 21 to 30 of about 17,125 (231)

Condições de formação de methemoglobina pela acetilfenilhidrazina

Memorias do Instituto Oswaldo Cruz, 1947
Os autores procuraram verificar "in vivo" e "in vitro" a formação de methemoglobina com acetilfenilhidrazina. O metodo utilizado para dosagem de methemoglobina foi o descrito por Heilmeyer.
R. Pimenta de Mello, W. O. Cruz
doaj   +1 more source

Representasi Kadar Methemoglobin (Methb) Akibat Paparan Pestisida pada Petani di Sigi Biromaru

Journal of Health (JOH)
Pesticides can be toxic and disrupt the ecosystem if used for long periods in high doses. High toxicity due to intensive pesticide exposure will affect heme biosynthesis.
Intania Riska Putrie, Tri Setyawati, Devi Oktafiani, Ryka Marina Walanda, Listawati   +4 more
doaj   +1 more source

The Effect of Piperidine Nitroxides on the Properties of Metalloproteins in Human Red Blood Cells

Molecules, 2023
Nitroxides are stable, low molecular-weight radicals containing a nitroxide group that has an unpaired electron. The presence of a nitroxide group determines their redox properties.
Stella Bujak-Pietrek, Anna Pieniazek, Krzysztof Gwozdzinski, Lukasz Gwozdzinski   +3 more
doaj   +1 more source

Methemoglobin Reduction [PDF]

Blood, 1963
Abstract 1. It has been shown that mixtures of normal and G-6-PD deficient nitrite-treated erythrocytes reduced methemoglobin at a rate considerably more rapid than that computed from their individual rates of methemoglobin reduction. 2.
ERNEST BEUTLER, MARYELLEN C. BALUDA
openaire   +1 more source

Nitrate and nitrite in drinking water affect antioxidant enzymes in erythrocytes of rats [PDF]

The Ukrainian Biochemical Journal, 2018
The present study evaluated the effect of short term intake of nitrite and nitrate drinking water on the antioxidant system and membrane damage of rat erythrocytes. Wistar rats were randomly divided into three groups as follows; the group I received only
E. Sierra-Campos, M. A. Valdez-Solana, M. I. Campos-Almazan, C. Avitia-Dominguez, J. L. Hernandez-Rivera, J. A. De Lira-Sanchez, G. Garcia-Arenas, A. Tellez-Valencia   +7 more
doaj   +1 more source

Upcycling Compact Discs Into Ultra‐Stable, Flexible, and Stretchable Nanoporous Gold Electrodes for Enhanced Biosensing Performance

Advanced Materials Technologies, EarlyView.
This article highlights the development of robust and high‐performance flexible and stretchable biosensors that maintain long‐term functionality and optimal electrical conductivity under mechanical deformation, utilizing sustainable and cost‐effective manufacturing principles.
Mousa H. Aldosari, Ahyeon Koh
wiley   +1 more source

Brain iron accumulation in unexplained fetal and infant death victims with smoker mothers-The possible involvement of maternal methemoglobinemia

BMC Pediatrics, 2011
Background Iron is involved in important vital functions as an essential component of the oxygen-transporting heme mechanism. In this study we aimed to evaluate whether oxidative metabolites from maternal cigarette smoke could affect iron homeostasis in ...
Corna Melissa F, Alfonsi Graziella, Mohorovic Lucijan, Lavezzi Anna M, Matturri Luigi   +4 more
doaj   +1 more source

Notes on Methemoglobin Determination

Clinical Chemistry, 1960
Abstract The Evelyn-Malloy procedure for the determination of methemoglobin in blood has been modified for use with a Coleman Jr. spectrophotometer by using a lower dilution of blood to reduce the effective instrument error from a possible 10 per cent to a possible 3 per cent.
T, LEAHY, R, SMITH
openaire   +2 more sources

Biomimetic Hydrogel System Targeting S100A8 Centered Neuroimmune Crosstalk and Hypoxia Induced Neuronal Injury

Advanced Science, EarlyView.
A biomimetic hydrogel (HPC@Gel) was developed for traumatic brain injury repair by combining oxygen‐carrying hemoglobin nanoparticles and anti‐inflammatory carbon quantum dots within a brain‐like matrix. The system alleviated hypoxia, reduced harmful neuroimmune signaling, protected neurons, supported neural regeneration, and improved neurological and ...
Peng Liu, Xiaoyang Wu, Xiaoyin Liu, Yuyan Wang, Shichao Jiang, Kai Wu, Gaowei Li, Jie Ding, Chengheng Wu, Dan Wei, Jing Sun, Hongsong Fan, Liangxue Zhou   +12 more
wiley   +1 more source

Methemoglobin levels in malaria: a systematic review and meta-analysis of its association with Plasmodium falciparum and Plasmodium vivax infections and disease severity

Scientific Reports
Reports indicate that Plasmodium infections influence methemoglobin levels. However, findings have been inconclusive or have varied across different geographic and demographic contexts.
Manas Kotepui, Aongart Mahittikorn, Polrat Wilairatana, Frederick Ramirez Masangkay, Kinley Wangdi, Kwuntida Uthaisar Kotepui   +5 more
doaj   +1 more source