Heavy Metal Toxicity and ADHD

نویسندگان

  • Deb Gilbertson
  • Pip Martin
چکیده

Cumulative evidence shows that the long-term prognosis for ADHD is poor, with higher rates of persistent psychiatric problems (Shekim et al., 1990), neurocognitive difficulties (Murphy et al., 2002), and academic struggles (Ratey et al., 1992). Many theoretical models have been put forward to explain the cause of ADHD (Barkley, 1997); however, it is largely recognized that it is a heterogeneous disorder with multiple causal factors.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Protective role of exogenous SNP against heavy metal toxicity in Brassica oleracea (var. Capitata) Narsingh Bahadur Singh*, Himani Singh and Sunaina

The present study is focused on the importance of SNP, a NO donor, as Cd stress modulator on seedlings of cabbage. The exogenously applied Cd induced stress in cabbage seedlings to explore the protective role of SNP. 21-day-old seedlings were grown in Hoagland solution and Cd at 0.5 and 0.7 mM concentration with and without SNP. The biophysical and biochemical parameters were analyzed. Cd exhib...

متن کامل

Heavy metal toxicity: Effect on plant growth, biochemical parameters and metal accumulation by Brassica juncea L.

Plant growth, pigment concentration, biochemical parameters and uptake of heavy metals were determined for Brassica juncea L. in response to cadmium and lead stress. The plant exhibited a decline in growth, chlorophyll content and carotenoids with Cd and Pb but Cd was found to be more detrimental than Pb treatment in B. juncea. The protein content was decreased by Cd (900 μM) to 95% and 44% by ...

متن کامل

Acute Toxicity of a Heavy Metal Cadmium to an Anuran, the Indian Skipper Frog Rana cyanophlyctis

Background: There has been increasing awareness throughout the world regarding the remarkable decrease in amphibian population. For such amphibian population decline several causes have been given. Cadmium, a heavy metal is released both from natural sources (leaching of cadmium rich soils) and anthropogenic activities to the aquatic and terrestrial environments. This study evaluated the toxici...

متن کامل

Metal-Induced Oxidative Stress and Cellular Signaling Alteration in Animals

Contamination by heavy metals has attracted increasing attention considering the ability of these elements in producing serious consequence to ecosystem, and especially on animals health. Due to their widespread use in human activities such as industry, agriculture and even as medicine (e.g. arsenic, selenium and platinum), numerous health risks may be associated with exposure to these substanc...

متن کامل

A systematic and meta-analysis review of heavy metals pollution, toxicity potential, ecological and biological risk in surface sediments of Mahshahr and Imam Khomeini port estuaries (Coastal areas of Khuzestan province)

Coastal areas including the estuaries of Persian Gulf are sensitive and fragile areas of aquatic ecosystems in Iran that are severely affected by pollution from urbanization, industrialization, and maritime activity. Despite numerous studies on the status of pollution, especially heavy metals in these areas, comprehensive and systematic studies on this subject have not been conducted. Therefore...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011