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Ogawa A, Nosaka N, Kasai M, Aoyama T, Okazaki M, Igarashi O, Kondo K. Dietary Medium- and Long-chain Triacylglycerols Accelerate Diet-Induced Thermogenesis in Humans. J Oleo Sci 2007; 56:283-7. [PMID: 17898493 DOI: 10.5650/jos.56.283] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study investigated the effects of a liquid meal containing medium- and long-chain triacylglycerols (MLCT) on diet-induced thermogenesis (DIT) and was conducted in double-blind cross-over manner. Twenty subjects participated in this examination. The subjects consumed the liquid meal, which was made with 14 g of canola oil (LCT, long-chain triacylglycerols) or MLCT containing about 12% medium-chain fatty acids (MCFA). Oxygen consumption and carbon dioxide production were measured by indirect calorimetry. Resting energy expenditure (REE) was determined based on there parameters, applying the equation of Weir. Increase in DIT after ingesting the liquid meal with MLCT during 6h was significantly greater than with LCT (P<0.05). The results suggest that the substitution of MLCT for cooking oil is useful to control body weigh and fat in subjects.
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Arasaki K, Igarashi O, Ichikawa Y, Machida T, Shirozu I, Hyodo A, Ushijima R. Reduction in the motor unit number estimate (MUNE) after cerebral infarction. J Neurol Sci 2006; 250:27-32. [PMID: 16904126 DOI: 10.1016/j.jns.2006.06.024] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 06/12/2006] [Accepted: 06/19/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND The mechanism of the decrease in motor unit number estimates (MUNEs) after cerebral infarction has not been studied systematically. We examined the relationship between the degree to which MUNEs decreased and the other clinical features of patients with the infarction. METHODS Using a multiple point stimulation technique, we obtained the MUNE of the hypothenar muscle group in 13 age-matched control subjects and 30 patients with cerebral infarction. In all patients, we obtained the Japan Stroke Scale (JSS) and head MR images. In eight patients with acute cerebral infarction, admitted within 24 h after onset, we also obtained head MR angiograms and single-photon emission CT. FINDINGS There was a decrease in the MUNE of the hypothenar muscle group on the affected side of 24 patients with cerebral infarction and hand weakness. The decrease in the MUNE started from 4 to 30 h after the infarction, when T1-weighted MR images of the brain involved were normal. The degree to which the MUNE decreased correlated with the part of the JSS showing the upper extremity weakness. INTERPRETATIONS A decrease in the MUNE of the hypothenar muscle group within 30 h after cerebral infarction may be due to trans-synaptic inhibition of the spinal alpha motor neurons innervating this muscle.
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Maeda M, Tsukahara H, Terada H, Nakaji S, Nakamura H, Oba H, Igarashi O, Arasaki K, Machida T, Takeda K, Takanashi JI. Reversible splenial lesion with restricted diffusion in a wide spectrum of diseases and conditions. J Neuroradiol 2006; 33:229-36. [PMID: 17041527 DOI: 10.1016/s0150-9861(06)77268-6] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Reversible lesion in the central area of the splenium of the corpus callosum (SCC) is a unique phenomenon occurring particularly in patients with encephalitis or encephalopathy and in patients receiving antiepileptic drugs (AED). We report MR imaging findings, clinical courses, and outcomes in eight patients with various diseases and conditions. MATERIALS AND METHODS Eight patients with a reversible SCC lesion with transiently restricted diffusion were reviewed retrospectively. Diseases and conditions that were associated with a reversible lesion included epilepsy receiving AED (n=1), seizure from eclampsia receiving AED (n=1), mild infectious encephalitis (n=2), hypernatremia resulting in osmotic myelinolysis (n=1), and neoplasm (n=3) such as acute lymphocytic leukemia, spinal meningeal melanocytoma, and esophageal cancer. We evaluated MR imaging findings and clinical findings. RESULTS Seven patients had isolated SCC lesions; one patient with osmotic myelinolysis showed additional parenchymal lesions. The reversible SCC lesion shape was oval (n=6) or extended (n=2). The mean apparent diffusion coefficient value of the splenial lesion was 0.40+/-0.16 x 10-3 mm2/s, ranging from 0.22 to 0.64 x 10-3 mm2/s. In a patient with osmotic myelinolysis, additional white matter lesions, shown as restricted diffusion, were revealed as not reversible on follow-up MR imaging. Neurological courses and outcomes were good in seven patients with isolated SCC lesions, but poor in one with osmotic myelinolysis. CONCLUSION Reversible SCC lesion with restricted diffusion is apparent in a wide spectrum of diseases and conditions. Neurological courses and outcomes are good, particularly in patients with isolated SCC lesions. Knowledge of MR imaging findings and the associated spectrum of diseases and conditions might prevent unnecessary invasive examinations and treatments.
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Igarashi O, Iguchi H, Ogura N, Ichikawa Y, Kiyozuka T, Kawabe K, Maruyama M, Fujioka T, Ikeda K, Iwasaki Y. Cheiro-oral-pedal syndrome due to brainstem hemorrhage. Clin Neurol Neurosurg 2006; 108:507-10. [PMID: 16720226 DOI: 10.1016/j.clineuro.2005.02.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2004] [Revised: 01/25/2005] [Accepted: 02/08/2005] [Indexed: 11/18/2022]
Abstract
Cheiro-oral-pedal syndrome is characterized by specific sensory disturbance around the corner of the mouth, in the hand and in the foot on the same side. Lesions responsible for causing this syndrome vary. We report two cases of cheiro-oral-pedal syndrome due to midbrain and pontine hemorrhage, respectively. Pontine hemorrhage producing cheiro-oral-pedal syndrome has been reported in three cases, but this is the first case that midbrain hematoma exhibits this syndrome. Damage in the sensory pathway can cause cheiro-oral-pedal syndrome. Difference in the threshold may explain the specific sensory pattern in this syndrome. Cheiro-oral-pedal syndrome is caused by lacunar infarction in majority of the cases. However, it should be kept in mind that hematomas can cause cheiro-oral-pedal syndrome.
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Iwasaki Y, Ikeda K, Igarashi O, Baba S. Depression is associated with impairment of ADL, not motor function in Parkinson disease. Neurology 2006; 66:956; author reply 956. [PMID: 16567734 DOI: 10.1212/01.wnl.0000218669.25415.a5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Iwasaki Y, Igarashi O, Ichikawa Y, Ikeda K. Sporadic Creutzfeldt-Jakob disease: magnetic resonance imaging and clinical findings. Neurology 2006; 64:1318; author reply 1318. [PMID: 15824383 DOI: 10.1212/wnl.64.7.1318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ikeda K, Kashihara H, Hosozawa KI, Shimoma M, Ichikawa Y, Igarashi O, Aoyagi J, Tamura M, Iwasaki Y. A fetal circle of Willis is associated with a decreased deep white matter lesion load. Neurology 2006; 64:2163-4; author reply 2163-4. [PMID: 15985606 DOI: 10.1212/wnl.64.12.2163-a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kasai M, Negishi S, Uto H, Okazaki M, Igarashi O, Kondo K. We-P14:380 Dietary medium-and long-chain triacylglycerols (MLCT) suppress accumulation of body fat. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81733-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Iwasaki Y, Igarashi O, Aoyagi J, Iwamoto K, Ikeda K. Chronic inflammatory demyelinating polyradiculoneuropathy: MRI study of brain and spinal cord. Neurology 2005; 65:1340; author reply 1340. [PMID: 16247085 DOI: 10.1212/wnl.65.8.1340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Igarashi O, Fujioka T, Kishi M, Normoto N, Iwasaki Y, Kurihara T. Guillain-Barre syndrome with optic neuritis and cytomegalovirus infection. J Peripher Nerv Syst 2005; 10:340-1. [PMID: 16221294 DOI: 10.1111/j.1085-9489.2005.10313.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Igarashi O. Model of the dog eye. Vet Ophthalmol 2005; 8:293. [PMID: 16008713 DOI: 10.1111/j.1463-5224.2005.00404.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Iwasaki Y, Igarashi O, Ichikawa Y, Ikeda K. Strokes in the subinsular territory: clinical, topographical, and etiological patterns. Neurology 2005; 64:2164; author reply 2164. [PMID: 15985608 DOI: 10.1212/wnl.64.12.2164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yagi T, Yasuda F, Fushimi N, Hara Y, Nakagiri H, Hamada T, Ikeda I, Igarashi O. Lymphatic absorption of structured triacylglycerols, 1(3)-stearoyl-2,3 (1)-dilinoleoylglycerol and 2-linoleoyl-1,3-distearoylglycerol in rats. J Nutr Sci Vitaminol (Tokyo) 2005; 50:446-8. [PMID: 15895523 DOI: 10.3177/jnsv.50.446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Lymphatic recovery of 1(3)-stearoyl-2,3(1)-dilinoleoylglycerol (SLL) and 2-linoleoyl-1,3-distearoylglycerol (SLS) which had been enzymatically synthesized were compared with those of trilinoleoylglycerol (LLL) and the randomly esterified triacylglycerol which contained stearic acid and linoleic acid at 1:2. Recoveries of linoleic acid in all of the triacylglycerols were more than 94.0%. Lymphatic 24 h-recoveries of stearic acid given as SLL and SLS were significantly lower than that of stearic acid given as the randomly esterified triacylglycerol. Recoveries of stearic acid from SLL, SLS and the randomly esterified triacylglycerol were 88.49%, 68.3% and 101%. respectively.
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Iwasaki Y, Igarashi O, Iwasa Y, Hirano K, Satoh R, Iwamoto K, Kawase Y, Aoyagi J, Ichikawa Y, Kawabe K, Ikeda K. Bilirubin and amyotrophic lateral sclerosis. Clin Neurol Neurosurg 2005; 107:160; author reply 161. [PMID: 15708236 DOI: 10.1016/j.clineuro.2004.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2004] [Revised: 06/03/2004] [Accepted: 07/21/2004] [Indexed: 10/26/2022]
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Igarashi O, Aoyagi J, Kawase Y, Kiyozuka T, Kawabe K, Ichikawa Y, Iguchi H, Fujioka T, Ikeda K, Iwasaki Y. Cheiro-pedal syndrome following pontine infarction. Neurol Res 2005; 27:103-4. [PMID: 15829168 DOI: 10.1179/016164105x18412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
We report the case of a 64-year-old man with sudden onset of numbness in the right hand and foot. Neurological examinations were normal except for hypersthesia, and hyperalgesia of the right hand and foot. Brain MRI demonstrated a high signal intensity on T2-weighted image and a low signal intensity on T1-weighted image in the left tegmetum of the pons. He was diagnosed with pontine infarction presenting with cheiro-pedal syndrome (CPS). Damage in the sensory pathways can cause CPS. Difference in the threshold may explain the specific sensory pattern in this syndrome. Further examination of the relationship between sensory symptoms and localization on MRI is needed to clarify this syndrome.
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Iguchi H, Ogura N, Kiyozuka TH, Igarashi O, Kawabe K, Maruyama M, Fujioka T, Iwasaki Y. Gynecomastia in amyotrophic lateral sclerosis. J Clin Neuromuscul Dis 2005; 6:147-148. [PMID: 19078765 DOI: 10.1097/01.cnd.0000146228.58880.6d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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Iwasaki Y, Iwamoto K, Igarashi O, Kiyozuka T, Aoyagi J, Hirano K, Sato R, Kawase Y, Iwasa Y, Ikeda K. Depression in multiple sclerosis. Acta Neurol Scand 2005; 111:209. [PMID: 15691293 DOI: 10.1111/j.1600-0404.2005.00390.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Iwasaki Y, Igarashi O, Ichikawa Y, Kawabe K, Ikeda K. Vitamins A, C and E in vascular parkinsonism. J Neurol Sci 2004; 227:149; author reply 151-2. [PMID: 15546605 DOI: 10.1016/j.jns.2004.06.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Indexed: 10/26/2022]
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Igarashi O, Ogura N, Kiyozuka T, Kawabe K, Iguchi H, Maruyama M, Fujioka T, Ichikawa Y, Ikeda K, Iwasaki Y. Lateral lower medullary infarction. ACTA ACUST UNITED AC 2004; 61:1609. [PMID: 15477519 DOI: 10.1001/archneur.61.10.1609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Iwasaki Y, Igarashi O, Kawabe K, Kiyozuka T, Kawase Y, Aoyagi J, Iwasa Y, Hirano K, Satoh R, Ikeda K. MG with distal muscle involvement. Acta Neurol Scand 2004; 110:270; author reply 271-2. [PMID: 15355493 DOI: 10.1111/j.1600-0404.2004.00312.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Iwasaki Y, Igarashi O, Ikeda K. Spinocerebellar Ataxia and Peripheral Neuropathy. ACTA ACUST UNITED AC 2004; 61:1625-6; author reply 1626. [PMID: 15477524 DOI: 10.1001/archneur.61.10.1625-c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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47
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Ueta M, Nochi T, Jang MH, Park EJ, Igarashi O, Hino A, Kawasaki S, Shikina T, Hiroi T, Kinoshita S, Kiyono H. Intracellularly expressed TLR2s and TLR4s contribution to an immunosilent environment at the ocular mucosal epithelium. THE JOURNAL OF IMMUNOLOGY 2004; 173:3337-47. [PMID: 15322197 DOI: 10.4049/jimmunol.173.5.3337] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Epithelial cells are key players in the first line of defense offered by the mucosal immune system against invading pathogens. In the present study we sought to determine whether human corneal epithelial cells expressing Toll-like receptors (TLRs) function as pattern-recognition receptors in the innate immune system and, if so, whether these TLRs act as a first line of defense in ocular mucosal immunity. Incubation of human primary corneal epithelial cells and the human corneal epithelial cell line (HCE-T) with peptidoglycan or LPS did not lead to activation, at the level of DNA transcription, of NF-kappaB or the secretion of inflammation-associated molecules such as IL-6, IL-8, and human beta-defensin-2. However, when incubated with IL-1alpha to activate NF-kappaB, the production by these cells of such inflammatory mediators was enhanced. Human corneal epithelial cells were observed to express both TLR2- and TLR4-specific mRNA as well as their corresponding proteins intracellularly, but not at the cell surface. However, even when LPS was artificially introduced into the cytoplasm, it did not lead to the activation of epithelial cells. Taken together, our results demonstrate that the intracellular expression of TLR2 and TLR4 in human corneal epithelial cells fails to elicit innate immune responses and therefore, perhaps purposely, contributes to an immunosilent environment at the ocular mucosal epithelium.
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Iwasaki Y, Igarashi O, Ichikawa Y, Kiyozuka T, Kawabe K, Iguchi H, Aoyagi J, Kawase Y, Ikeda K, Fujioka T. T2-hypointensity in the cortex. J Neurol Sci 2004; 221:121; author reply 123. [PMID: 15178227 DOI: 10.1016/j.jns.2004.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2003] [Indexed: 11/29/2022]
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Iwasaki Y, Ichikawa Y, Igarashi O, Konno S, Aoyagi J, Ikeda K, Marabuchi S, Ono S, Iguchi H, Kawabe K, Fujioka T. T-588 protects motor neuron death following axotomy. Neurochem Res 2004; 29:403-6. [PMID: 15002737 DOI: 10.1023/b:nere.0000013744.57398.fd] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
R(-)-1-(benzo [b] thiophen-5-yl)-2-[2-(N,N-diethylamino)ethoxy] ethanol hydrochloride) (T-588) enhances acetylcholine release. This compound slows the motor deterioration of wobbler mouse motor neuron disease and enhances neurite outgrowth and choline acetyltransferase activity in cultured rat spinal motor neurons. We examined the ability of T-588 on axotomized spinal motor neuron death in the rat spinal cord. After the postnatal unilateral section of sciatic nerve, there was approximately a 50% survival of motor neurons in the fourth lumbar segment. In comparison with vehicle, intraperitoneal injection of T-588 for 14 consecutive days rescued spinal motor neuron death. Our results showing in vivo neurotrophic activity of T-588 for motor neurons support the applicability of T-588 for the treatment of motor neuron diseases, such as amyotrophic lateral sclerosis and motor neuropathies.
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Yamamoto T, Oya Y, Igarashi O, Toyoda C, Ogawa M, Kawai M. [Palpable orbital subcutaneous masses in chronic inflammatory demyelinating polyneuropathy. MRI and neurophysiological study of multiple peripheral nerve swelling]. Rinsho Shinkeigaku 2004; 44:286-90. [PMID: 15287511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
We report a 46-year-old woman with chronic inflammatory demyelinating polyneuropathy (CIDP) in whom swelling of the first branch of the trigeminal nerves in the bilateral orbits were observed as subcutaneous masses in the upper eyelids. The disease developed when the patient was 33 years old, and weakness of the four limbs, double vision, unilateral hypoglossal neuroparalysis, and unilateral facial paralysis frequently occurred during the course of the illness. On nerve conduction studies, conduction block was detected in the motor nerves. Steroid therapy and immunoglobulin treatment improved the symptoms. At 43 years old, subcutaneous phymas were noted in the bilateral upper eyelids, and fat-suppressed MRI detected the phymas localized along the upper region of the superior straight muscle in the bilateral orbits, and the muscles were slightly compressed downward. The masses branched in the orbits, and were diagnosed as nerve swelling of the supraorbital nerve, the first branch of the trigeminal nerve. Fat-suppressed MRI also identified nerve swelling of the extracranial maxillary and mandibular nerves. However, the patient had no subjective sensory disturbance in the trigeminal nerve region. Blink reflex did not induce R1 and R2 exhibited low amplitude and delayed latency. MRI confirmed asymmetric nerve swelling in the regions of the bilateral median nerves with motor nerve conduction block. Lumbar MRI detected nerve swelling in the peripheral nerves distant from the lumbar ganglion. MRI detected no nerve swelling in the arachnoid space such as the cervical cord, thoracic cord, or cauda equina. Aggravation of CIDP was treated with steroids and immunoglobulin. Diplopia occasionally appeared, but was not consistent with aggravation of CIDP. The bilateral supraorbital nerves remained unchanged for three years on MRI.
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