Skip to main content

Dopamine levels after repetitive transcranial magnetic stimulation of motor cortex in patients with Parkinson's disease: preliminary results.

Research Abstract
Abstract BACKGROUND: Repeated session of repetitive transcranial magnetic stimulation (rTMS) over motor cortex have been reported to produce significant improvement of motor performance in patients with parkinson's disease (PD). In addition, it is known that a single session of rTMS over motor cortex transiently increases DA in striatum. Here, we test whether repeated sessions of rTMS increase serum dopamine in PD patients and whether this correlates with changes in clinical rating scales. MATERIAL AND METHODS: Twenty untreated PD patients with moderate to severe symptoms (Hoehn & Yahr state III-V 1967) were assessed on the Unified Parkinson's Disease Rating Scale (UPDRS), and with an enzyme immunoassay for quantitative determination of plasma dopamine before and after six daily sessions of 25 Hz rTMS with 3,000 stimuli over the right and left hand and leg motor cortex. RESULTS: There was significant improvement in UPDRS compared with the baseline. Serum dopamine level also was significantly elevated over the same interval. There was a significant correlation between UPDRS and serum dopamine level before and after treatment. CONCLUSION: Improved motor performance in PD after repeated session of rTMS may be related to an elevation of serum dopamine concentration.
Research Authors
Khedr EM1, Rothwell JC, Shawky OA, Ahmed MA, Foly N, Hamdy A.
Research Journal
Mov Disord. 2007 May 15;22(7):1046-50.
Research Pages
1046-50
Research Publisher
Elsevier
Research Rank
1
Research Vol
22(7)
Research Website
PubMed - indexed for MEDLINE
Research Year
2007

Dopamine levels after repetitive transcranial magnetic stimulation of motor cortex in patients with Parkinson's disease: preliminary results.

Research Abstract
Abstract BACKGROUND: Repeated session of repetitive transcranial magnetic stimulation (rTMS) over motor cortex have been reported to produce significant improvement of motor performance in patients with parkinson's disease (PD). In addition, it is known that a single session of rTMS over motor cortex transiently increases DA in striatum. Here, we test whether repeated sessions of rTMS increase serum dopamine in PD patients and whether this correlates with changes in clinical rating scales. MATERIAL AND METHODS: Twenty untreated PD patients with moderate to severe symptoms (Hoehn & Yahr state III-V 1967) were assessed on the Unified Parkinson's Disease Rating Scale (UPDRS), and with an enzyme immunoassay for quantitative determination of plasma dopamine before and after six daily sessions of 25 Hz rTMS with 3,000 stimuli over the right and left hand and leg motor cortex. RESULTS: There was significant improvement in UPDRS compared with the baseline. Serum dopamine level also was significantly elevated over the same interval. There was a significant correlation between UPDRS and serum dopamine level before and after treatment. CONCLUSION: Improved motor performance in PD after repeated session of rTMS may be related to an elevation of serum dopamine concentration.
Research Authors
Khedr EM1, Rothwell JC, Shawky OA, Ahmed MA, Foly N, Hamdy A.
Research Journal
Mov Disord. 2007 May 15;22(7):1046-50.
Research Member
Research Pages
1046-50
Research Publisher
Elsevier
Research Rank
1
Research Vol
22(7)
Research Website
PubMed - indexed for MEDLINE
Research Year
2007

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Member
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Member
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of Major Neurological
Disorders Project in Al Kharga District,
New Valley, Egypt

Research Abstract
Background/Methods:A door-to-door (‘every door’) study was carried out to assess the incidence and prevalence rates of epilepsy, stroke, Bell’s palsy and cerebral palsy, as well as the prevalence of dementia, extrapyramidal syndromes, muscle and neuromuscular disorders, cerebellar ataxia and primary nocturnal enuresis among the urban and rural populations of Al Kharga district, New Valley, Egypt. The study was carried out in 3 stages from June 1, 2005 to May 31, 2009. A door-to-door screening including every door was carried out using a standardized questionnaire, which was administered by 3 neurologists to all inhabitants (62,583) of Al Kharga district. The study was designed to assess the prevalence, incidence and risk factors of major neurological disorders in Al Kharga district and aimed toreduce the burden of these neurological disorders in the entire region. Results/Conclusions:This study clarified that dementia, primary nocturnal enuresis, epilepsy, stroke and cerebral palsy are the most common neurological disorders.On the other hand, Bell’spalsy, extrapyramidal syndromes, cerebellar ataxia, muscle dystrophies and myasthenia gravis are less common neurological disorders in Al Kharga district.
Research Authors
Hamdy N.A. El Tallawy a
Wafaa M.A. Farghaly a
Tarek A. Rageh a
Ghaydaa A. Shehata a
Nabil A. Metwaly b
Noha Abo Elftoh a
Ahmed M. Hegazy b
Esam A. El Moselhy b
Ibrahim Rayan c
Bastawy M.A. Al Fawal c
Mohamed A. Abd Elhamed a
Research Journal
Neuroepidemiology
Research Pages
:291–297
Research Publisher
Karger AG, Basel
Research Rank
1
Research Vol
35
Research Website
www.karger.com/ned DOI: 10.1159/000320240
Research Year
2010

Epidemiology of cerebral palsy in El-Kharga District-NewValley (Egypt)

Research Abstract
Cerebral palsy (CP) is the most frequent cause of motor handicap among children. The present door to door (every door) study was conducted in El-Kharga District-New Valley to estimate the epidemiology of CP among children. Each child was subjected to complete medical and neurological examination to detect cases with CP. These diseased children were subjected to meticulous neurological and medical assessment, brain MRI, EEG and Stanford Binet (4th edition). It was found that 52 out of 25,540 children had CP yielding prevalence rate of 2.04/1000 (95% CI: 1.48–2.59) of living births. Mean age of children with CP, was 7.17 ± 4.38 years. The order of frequency of different subtypes of CP was as follows, 65.4% had spastic type, 26.9% mixed type and 3.8% for each ataxic and dyskinetic types of CP. The frequency of risk factors of CP in our study is prenatal complications (cyanosis, preterm, jaundice, birth weight and obstructed labor of mothers), first baby, similar condition and recurrent abortions.
Research Authors
Hamdy N. El-Tallawya, Wafaa M.A. Farghalya
, Ghaydaa A. Shehataa,*
,Nabil A. Metwallyb
, Tarek A. Rageha
, Noha Abo-Elfetoha
Research Journal
Brain & Development
Research Member
Research Pages
6
Research Publisher
Elsevier B.V.
Research Rank
1
Research Vol
NULL
Research Website
www.elsevier.com/locate/braindev doi:10.1016/j.braindev.2010.07.011
Research Year
2010

Epidemiology of cerebral palsy in El-Kharga District-NewValley (Egypt)

Research Abstract
Cerebral palsy (CP) is the most frequent cause of motor handicap among children. The present door to door (every door) study was conducted in El-Kharga District-New Valley to estimate the epidemiology of CP among children. Each child was subjected to complete medical and neurological examination to detect cases with CP. These diseased children were subjected to meticulous neurological and medical assessment, brain MRI, EEG and Stanford Binet (4th edition). It was found that 52 out of 25,540 children had CP yielding prevalence rate of 2.04/1000 (95% CI: 1.48–2.59) of living births. Mean age of children with CP, was 7.17 ± 4.38 years. The order of frequency of different subtypes of CP was as follows, 65.4% had spastic type, 26.9% mixed type and 3.8% for each ataxic and dyskinetic types of CP. The frequency of risk factors of CP in our study is prenatal complications (cyanosis, preterm, jaundice, birth weight and obstructed labor of mothers), first baby, similar condition and recurrent abortions.
Research Authors
Hamdy N. El-Tallawya, Wafaa M.A. Farghalya
, Ghaydaa A. Shehataa,*
,Nabil A. Metwallyb
, Tarek A. Rageha
, Noha Abo-Elfetoha
Research Journal
Brain & Development
Research Pages
6
Research Publisher
Elsevier B.V.
Research Rank
1
Research Vol
NULL
Research Website
www.elsevier.com/locate/braindev doi:10.1016/j.braindev.2010.07.011
Research Year
2010
Subscribe to