Appropriate selection and measurement of lead biomarkers of exposure are critically important for health care management purposes,public health decision making,and primary prevention synthesis.Lead is one of the neuro...Appropriate selection and measurement of lead biomarkers of exposure are critically important for health care management purposes,public health decision making,and primary prevention synthesis.Lead is one of the neurotoxicants that seems to be involved in the etiology of psychologies.Biomarkers are generally classified into three groups:biomarkers of exposure,effect,and susceptibility.The main body compartments that store lead are the blood,soft tissues,and bone;the half-life of lead in these tissues is measured in weeks for blood,months for soft tissues,and years for bone.Within the brain,lead-induced damage in the prefrontal cerebral cortex,hippocampus,and cerebellum can lead to a variety of neurological disorders,such as brain damage,mental retardation,behavioral problems,nerve damage,and possibly Alzheimer’s disease,Parkinson’s disease,and schizophrenia.This paper presents an overview of biomarkers of lead exposure and discusses the neurotoxic effects of lead with regard to children and adults.展开更多
Some studies document that odorants influence in sympathetic and parasympathetic nervous systems, and neurophysiological brain activity. Odors compounds can act on the neuroendocrine system, neurotransmitters and neur...Some studies document that odorants influence in sympathetic and parasympathetic nervous systems, and neurophysiological brain activity. Odors compounds can act on the neuroendocrine system, neurotransmitters and neuromodulators, influencing psychological behavior as well as body function. The study was conducted in 20 individuals in each test to analyze the effects of essential oil inhalation on psychomotor performance in the healthy volunteers. Two tests were performed in the present study （1） SLCT （six letter cancellation test） and （2） DLST （digit letter substitution test）. These tests were carded out for the assessment of psychopharmacological activity of essential oil of Rosa damascena Mill., in healthy young human individuals belonging to the age group 18 to 22 years. The results of the psychomotor performance test in healthy human individuals revealed that there was improvement in psychomotor functions.展开更多
文摘Appropriate selection and measurement of lead biomarkers of exposure are critically important for health care management purposes,public health decision making,and primary prevention synthesis.Lead is one of the neurotoxicants that seems to be involved in the etiology of psychologies.Biomarkers are generally classified into three groups:biomarkers of exposure,effect,and susceptibility.The main body compartments that store lead are the blood,soft tissues,and bone;the half-life of lead in these tissues is measured in weeks for blood,months for soft tissues,and years for bone.Within the brain,lead-induced damage in the prefrontal cerebral cortex,hippocampus,and cerebellum can lead to a variety of neurological disorders,such as brain damage,mental retardation,behavioral problems,nerve damage,and possibly Alzheimer’s disease,Parkinson’s disease,and schizophrenia.This paper presents an overview of biomarkers of lead exposure and discusses the neurotoxic effects of lead with regard to children and adults.
文摘Some studies document that odorants influence in sympathetic and parasympathetic nervous systems, and neurophysiological brain activity. Odors compounds can act on the neuroendocrine system, neurotransmitters and neuromodulators, influencing psychological behavior as well as body function. The study was conducted in 20 individuals in each test to analyze the effects of essential oil inhalation on psychomotor performance in the healthy volunteers. Two tests were performed in the present study （1） SLCT （six letter cancellation test） and （2） DLST （digit letter substitution test）. These tests were carded out for the assessment of psychopharmacological activity of essential oil of Rosa damascena Mill., in healthy young human individuals belonging to the age group 18 to 22 years. The results of the psychomotor performance test in healthy human individuals revealed that there was improvement in psychomotor functions.
