Hiroshi Nagayama

Summary

Publications

  1. ncbi request reprint The effect of ascorbic acid on the pharmacokinetics of levodopa in elderly patients with Parkinson disease
    Hiroshi Nagayama
    Second Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    Clin Neuropharmacol 27:270-3. 2004
  2. pmc Reliability of MIBG myocardial scintigraphy in the diagnosis of Parkinson's disease
    H Nagayama
    Department of Neurology, Tokyo Metropolitan Tama Geriatric Hospital, Tokyo 189 8511, Japan
    J Neurol Neurosurg Psychiatry 76:249-51. 2005
  3. doi request reprint Abnormal cardiac [(123)I]-meta-iodobenzylguanidine uptake in multiple system atrophy
    Hiroshi Nagayama
    Divisions of Neurology, Nephrology, and Rheumatology, Department of Internal Medicine, Nippon Medical School, Sendagi Bunkyo ku, Tokyo, Japan
    Mov Disord 25:1744-7. 2010
  4. ncbi request reprint Statin treatment decreased serum asymmetric dimethylarginine (ADMA) levels in ischemic stroke patients
    Yasuhiro Nishiyama
    Division of Neurology, Nephrology and Rheumatology, Department of Internal Medicine, Nippon Medical School, Bunkyo ku, Tokyo, Japan
    J Atheroscler Thromb 18:131-7. 2011
  5. doi request reprint Influence of ageing on the pharmacokinetics of levodopa in elderly patients with Parkinson's disease
    Hiroshi Nagayama
    Department of Internal Medicine, Division of Neurology, Nephrology and Rheumatology, Nippon Medical School, Tokyo, Japan
    Parkinsonism Relat Disord 17:150-2. 2011
  6. doi request reprint Correlation between insulin resistance and white matter lesions among non-diabetic patients with ischemic stroke
    Toshiya Katsumata
    Department of Internal Medicine, Division of Neurology, Nephrology, and Rheumatology, Nippon Medical School, Bunkyo ku, Tokyo, Japan
    Neurol Res 32:743-7. 2010
  7. doi request reprint Asymmetric dimethylarginine (ADMA) as a possible risk marker for ischemic stroke
    Yasuhiro Nishiyama
    Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    J Neurol Sci 290:12-5. 2010
  8. doi request reprint Early depressive symptoms after ischemic stroke are associated with a left lenticulocapsular area lesion
    Yasuhiro Nishiyama
    Divisions of Neurology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    J Stroke Cerebrovasc Dis 19:184-9. 2010
  9. ncbi request reprint Therapeutic response to pramipexole in a patient with multiple system atrophy with predominant parkinsonism: positron emission tomography and pharmacokinetic assessments
    Masayuki Ueda
    Department of Neurology, Nippon Medical School, Japan
    Intern Med 52:1731-5. 2013
  10. ncbi request reprint Validity and reliability assessment of a Japanese version of the Snaith-Hamilton pleasure scale
    Hiroshi Nagayama
    Department of Internal Medicine, Division of Neurology, Nephrology and Rheumatology, Nippon Medical School, Japan
    Intern Med 51:865-9. 2012

Collaborators

Detail Information

Publications14

  1. ncbi request reprint The effect of ascorbic acid on the pharmacokinetics of levodopa in elderly patients with Parkinson disease
    Hiroshi Nagayama
    Second Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    Clin Neuropharmacol 27:270-3. 2004
    ..hour/mL. In conclusion, AsA can improve LD absorption in elderly PD patients with poor LD bioavailability. LD therapy in combination with AsA may be one of the strategies for PD treatment...
  2. pmc Reliability of MIBG myocardial scintigraphy in the diagnosis of Parkinson's disease
    H Nagayama
    Department of Neurology, Tokyo Metropolitan Tama Geriatric Hospital, Tokyo 189 8511, Japan
    J Neurol Neurosurg Psychiatry 76:249-51. 2005
    ..To evaluate the reliability of [(123)I]meta-iodobenzylguanidine (MIBG) myocardial scintigraphy for diagnosing Parkinson's disease (PD)...
  3. doi request reprint Abnormal cardiac [(123)I]-meta-iodobenzylguanidine uptake in multiple system atrophy
    Hiroshi Nagayama
    Divisions of Neurology, Nephrology, and Rheumatology, Department of Internal Medicine, Nippon Medical School, Sendagi Bunkyo ku, Tokyo, Japan
    Mov Disord 25:1744-7. 2010
    ..This data clearly showed that cardiac MIBG uptake cannot necessarily be preserved in patients with MSA and that approximately 30% of patients with MSA showed decreased MIBG uptake without any correlation to disease duration or severity...
  4. ncbi request reprint Statin treatment decreased serum asymmetric dimethylarginine (ADMA) levels in ischemic stroke patients
    Yasuhiro Nishiyama
    Division of Neurology, Nephrology and Rheumatology, Department of Internal Medicine, Nippon Medical School, Bunkyo ku, Tokyo, Japan
    J Atheroscler Thromb 18:131-7. 2011
    ..A prospective, controlled study was conducted to examine whether statin treatment affects serum ADMA concentrations in ischemic stroke patients...
  5. doi request reprint Influence of ageing on the pharmacokinetics of levodopa in elderly patients with Parkinson's disease
    Hiroshi Nagayama
    Department of Internal Medicine, Division of Neurology, Nephrology and Rheumatology, Nippon Medical School, Tokyo, Japan
    Parkinsonism Relat Disord 17:150-2. 2011
    ..The difference in oral LD bioavailability between the groups may result from a difference in excretion ability. Physicians should consider LD pharmacokinetics when treating elderly PD patients...
  6. doi request reprint Correlation between insulin resistance and white matter lesions among non-diabetic patients with ischemic stroke
    Toshiya Katsumata
    Department of Internal Medicine, Division of Neurology, Nephrology, and Rheumatology, Nippon Medical School, Bunkyo ku, Tokyo, Japan
    Neurol Res 32:743-7. 2010
    ..We investigated whether a correlation exists between insulin resistance and the severity of cerebral white matter lesions among non-diabetic patients with ischemic stroke...
  7. doi request reprint Asymmetric dimethylarginine (ADMA) as a possible risk marker for ischemic stroke
    Yasuhiro Nishiyama
    Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    J Neurol Sci 290:12-5. 2010
    ..Asymmetric dimethylarginine (ADMA) affects vascular function by blocking nitric oxide synthesis. We examined the relationship of ADMA concentration to vascular risk factors in subjects who have undergone annual medical check-up...
  8. doi request reprint Early depressive symptoms after ischemic stroke are associated with a left lenticulocapsular area lesion
    Yasuhiro Nishiyama
    Divisions of Neurology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
    J Stroke Cerebrovasc Dis 19:184-9. 2010
    ..We examined the relation between lesion location and presence of depressive symptoms 1 month after ischemic stroke, with a view toward early management of depressive symptoms...
  9. ncbi request reprint Therapeutic response to pramipexole in a patient with multiple system atrophy with predominant parkinsonism: positron emission tomography and pharmacokinetic assessments
    Masayuki Ueda
    Department of Neurology, Nippon Medical School, Japan
    Intern Med 52:1731-5. 2013
    ..The PET features and pharmacokinetic differences between L-dopa and pramipexole indicate the presence of unique therapeutic responses to dopaminergic medications in the patient. ..
  10. ncbi request reprint Validity and reliability assessment of a Japanese version of the Snaith-Hamilton pleasure scale
    Hiroshi Nagayama
    Department of Internal Medicine, Division of Neurology, Nephrology and Rheumatology, Nippon Medical School, Japan
    Intern Med 51:865-9. 2012
    ..Seventy subjects (48 patients with PD and 22 healthy subjects) were enrolled in this study...
  11. ncbi request reprint [A case of infarction in brainstem and cerebellum as a initial symptom with bilateral hearing loss]
    Eiko Sunami
    The Second Department of Internal Medicine, Nippon Medical School, 1 1 5 Sendagi, Bunkyo ku, Tokyo 113 8603, Japan
    No To Shinkei 58:791-5. 2006
    ..Involvements of the cochlear nerve and pontine auditory pathway were suggested from the ABR abnormalities in this case...
  12. ncbi request reprint Factors influencing outcome in Guillain-Barré Syndrome: comparison of plasma adsorption against other treatments
    Takehiro Seta
    The Second Department of Internal Medicine, Nippon Medical School, 1 1 5 Sendagi, Bunkyo ku, Tokyo 113 8603, Japan
    Clin Neurol Neurosurg 107:491-6. 2005
    ..This study was performed to evaluate which factors influence the outcome of Guillain-Barré Syndrome (GBS), focusing on the choice of treatments...
  13. ncbi request reprint Cerebral blood flow index: dynamic perfusion MRI delivers a simple and good predictor for the outcome of acute-stage ischemic lesion
    Hironaka Igarashi
    The Second Internal Medicine, Nippon Medical School, Tokyo, Japan
    J Comput Assist Tomogr 27:874-81. 2003
    ....
  14. doi request reprint Low myocardial MIBG uptake in multiple system atrophy with incidental Lewy body pathology: an autopsy case report
    Hiroshi Nagayama
    Mov Disord 23:1055-7. 2008