نتایج جستجو برای: hair
تعداد نتایج: 35280 فیلتر نتایج به سال:
Hair loss can be viewed a problem from different perspectives: as a disease, a disorder which affects appearance of an individual, and its psychological effects. Therefore, it is crucial to determine the causes and types of hair loss. This review summarized hair loss evaluation methods with significant emphasis on their clinical aspects. According to relevant literature reviews, the major appro...
background: mercury (hg) is a hazardous metal responsible for environmental contamination and human intoxication. methyl mercury bio-accumulation through food chain can be responsible for chronic mercury exposure of south caspian sea communities with a diet rich in fish. uncertainties about exposure levels that could have damaging consequences for nervous system development of infants makes bio...
Abstract Background: Follicles are part of epidermis and pass through a cell cycle. The result of this cell division is producing hair. Follicles specially growing follicles are very sensitive against irradiation and are damaged by low dose rates. So in this study investigated the relationship between chronic exposure of radiation workers and their hair loss. Materials and methods: In this stud...
Cartilage hair hypoplasia (CHH), is a rare cause of metaphyseal chondrodysplasia and short stature. Other features included hair abnormality, immunodeficiency, anemia, gastrointestinal disorders (Hirschsprung disease, celiac, …) and increased risk of cancer. The disease is an autosomal recessive disorder and previously has not been reported in Iran. We report a 9-year-old boy diagnosed as car...
background: hair dye poisoning, with main toxic component paraphenylene diamine, is a medical emergency. it is on increasing trend in developing countries due to wide availability and low cost of hair dyes. it carries a high mortality and does not have any specific antidote. case report: twenty three years old patient presented with breathelessness along with difficulty in speaking for one hou...
evaluation of mercury concentration in hair of dentists and survey of factors influencing its levels
the purpose of this study was to evaluate the exposure to mercury (hg), and to examine the various parameters, which contribute to high levels of mercury of iranian dentists in tehran. one-hundred hair samples were collected from dentists. in addition, fifty samples from a control group were taken for comparison. the survey included a structured questionnaire designed to provide information abo...
Background: Human hair can be used as an inexpensive and accessible adsorbent to remove a variety of pollutants from air. Although several studies have been done on removal of formaldehyde from wastewater by human hair, to date no study has investigated using hair to remove formaldehyde from air. Therefore, the aim of this study was to remove formaldehyde from synthetic contaminated a...
Introduction & Objectives: Alopecia or hair loss is defined as the loss of hair on the head or body. Despite the benign prognosis of hair loss, it has a clear impact on the quality of life of the patients who are involved. There are many reasons to explain the pathophysiology of hair loss. Among many nutritional factors, vitamin D deficiency may play a role in hair loss too. Active vitamin D or...
The concentrations of trace metals in hair of fishermen from the Persian Gulf region were assessed todetect the relationships between element levels in hair and potential factors influencing these relationships.The hair of 19 fishermen were sampled from six stations in the Persian Gulf (Nirogah, Dayyer, Lengeh and Bandar Abbas in Khuzestan, Bushehr and Hormozgan provincesanalyzed by Inductively...
Background: Laser treatment is a rapid, non-invasive procedure for long-term hair removal. Lasers operate based on the principle of selective photothermolysis and target melanin in the hair follicle. We intend to determine the level of hirsute patient satisfaction with the alexandrite laser hair removal procedure.Methods: In this cross-sectional study 82 hirsute patient...
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