Related Experiment Video
Updated: Feb 10, 2026

09:21
Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
12.7K
Association between heavy metal levels and acute ischemic stroke.
Ching-Huang Lin1,2,3, Yi-Ting Hsu1,2, Cheng-Chung Yen2
1Department of Biological Sciences, National Sun Yet-Sen University, Kaohsiung, Taiwan.
Journal of Biomedical Science
|May 27, 2018
Summary
This study found lower mercury levels in patients with acute ischemic stroke (AIS). These findings suggest a potential link between heavy metal dysregulation and stroke incidence.
Area of Science:
- Environmental Health
- Neurology
- Toxicology
Background:
- Limited research exists on the connection between heavy metal exposure and stroke incidence.
- Investigating heavy metals like lead (Pb), mercury (Hg), arsenic (As), and cadmium (Cd) in acute ischemic stroke (AIS) patients is crucial.
Purpose of the Study:
- To explore the relationship between serum and urine heavy metal levels and the occurrence of first-ever acute ischemic stroke (AIS).
Main Methods:
- Serum and urine heavy metal levels (Pb, Hg, As, Cd) were measured in 33 AIS patients and 39 healthy controls.
- Urine samples were collected 24 hours post-infusion of edetate calcium disodium (EDTA) to assess heavy metal excretion.
Main Results:
- AIS patients exhibited significantly lower serum and urine mercury (Hg) levels compared to healthy controls.
- No significant differences were found in serum or urine levels of lead (Pb), arsenic (As), or cadmium (Cd) between the groups.
Conclusions:
- The study identified lower serum and urine Hg levels in patients with first-ever AIS.
- This suggests a potential dysregulation of heavy metals, specifically mercury, in the context of AIS.
Related Concept Videos
Alkali Metals
24.9K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.9K
Bonding in Metals
52.6K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
52.6K
Metallic Solids
20.8K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.8K
Metal-Ligand Bonds
24.4K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.4K
Associative Learning
1.4K
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
1.4K
Association Areas of the Cortex
9.5K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
9.5K

