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Igasaki S, Suzuki Y, Sakai N, Takenouchi A, Shinohara K, Kanemoto T. [A case of surfer's myelopathy with serial imaging examination from early stage after onset]. Rinsho Shinkeigaku 2020; 60:752-757. [PMID: 33115989 DOI: 10.5692/clinicalneurol.cn-001428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surfer's myelopathy is non-traumatic spinal cord injury which develops in beginner surfers. The patient was a 17-year-old female who developed severe paraplegia with bilateral sensory dysfunction below the groin and bladder/rectal dysfunctions after her first surfing lesson. A spinal-cord MRI performed six hours after onset revealed an intramedullary hyperintensity area from T8 to the conus medullaris on the T2 weighted images. Expansion of this hyperintensity area was observed on Day 3 and showed a reduction on Day 8. After providing intravenous methylpredonisolone, intravenous glycerol and intravenous edaravone, motor function and bladder/rectal functions began to improve after approximately three weeks. In this study, the expansion of the lesion in the early stages of the disease course was observed by sequential spinal MRI. Furthermore, a time lag between improvement according to imaging and improvement in symptoms was also observed.
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Affiliation(s)
| | - Yoji Suzuki
- Department of Neurology, Yaizu City Hospital
| | - Naoki Sakai
- Department of Neurology, Yaizu City Hospital
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Takenouchi A, Hosoi Y, Watanabe K, Takashima H, Bunai T, Miyajima H. [A case of human adjuvant disease with clinical features of Guillain-Barré syndrome]. Rinsho Shinkeigaku 2020; 60:358-361. [PMID: 32307393 DOI: 10.5692/clinicalneurol.cn-001364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 69-year-old female developed subacute diplopia, right peripheral facial nerve palsy, bilateral upper and lower extremities dysesthesia and weakness 50 years after silicone injection for breast augmentation. Motor conduction study revealed prolonged distal latency and reduced amplitude in the median, ulnar, and peroneal nerves. Sensory conduction velocities were reduced in the median and ulnar nerves, and sensory potential in the sural nerve could not be recorded. While intravenous immunoglobulin therapy was ineffective, explantation of silicone breast implants improved her neurological symptoms. Histopathological study of axillary lymph node revealed foreign body granulomas and macrophages phagocyting silicone. The patient was diagnosed with human adjuvant disease presenting clinical features of Guillain-Barré syndrome. Human adjuvant disease should be considered in the patients with implants like silicone and neurological symptoms.
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Affiliation(s)
| | - Yasushi Hosoi
- First Department of Medicine, Hamamatsu University School of Medicine
| | - Kazuki Watanabe
- First Department of Medicine, Hamamatsu University School of Medicine
| | | | - Tomoyasu Bunai
- First Department of Medicine, Hamamatsu University School of Medicine.,Department of Biofunctional Imaging, Medical Photonics Research Center, Hamamatsu University School of Medicine
| | - Hiroaki Miyajima
- First Department of Medicine, Hamamatsu University School of Medicine
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Kabir MH, Takenouchi A, Haqani MI, Nakamura Y, Takeuchi S, Tsudzuki M. Discovery of a new nucleotide substitution in the MC1R gene and haplotype distribution in native and non-Japanese chicken breeds. Anim Genet 2020; 51:235-248. [PMID: 31977074 DOI: 10.1111/age.12906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/13/2019] [Accepted: 12/17/2019] [Indexed: 01/07/2023]
Abstract
Melanocortin 1-receptor (MC1R) is one of the major genes that controls chicken plumage colour. In this study, we investigated the sequence and haplotype distribution of the MC1R gene in native Japanese chickens, along with non-Japanese chicken breeds. In total, 732 and 155 chickens from 30 Japanese and eight non-Japanese breeds respectively were used. Three synonymous and 11 non-synonymous nucleotide substitutions were detected, resulting in 15 haplotypes (H0-H14). Of these, three were newly found haplotypes (H9, H13 and H14), of which one (H9) was composed of known substitutions C69T, T212C, G274A and G636A. The second one (H13) possessed newly found non-synonymous substitution C919G, apart from the known substitutions C69T, G178A, G274A, G636A and T637C. The third one (H14) comprised a newly discovered substitution C919G in addition to the known C69T, G274A and G409A substitutions. The homozygote for this new haplotype exhibited wt like plumage despite the presence of G274A. In addition to discovering a new nucleotide substitution (C919G) and three new haplotypes, we defined the plumage colour of the bird that was homozygous for the A644C substitution (H5 haplotype) as wheaten-like for the first time; although the substitution has been already reported, its effect was not revealed. Besides detecting the new plumage colour, we also confirmed that the A427G and G274A substitutions contribute in expressing brownish and black plumage colour respectively, as reported by the previous studies. Moreover, we confirmed that the buttercup allele does not express black plumage despite possessing a G274A substitution, under the suppression effect of A644C. In contrast, the birds homozygous for the birchen allele presented solid black plumage, which was contradictory to the previous reports. In conclusion, we revealed a large diversity in the MC1R gene of native Japanese chicken breeds, along with the discovery of a new non-synonymous nucleotide substitution (C919G) and three novel haplotypes (H9, H13 and H14).
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Affiliation(s)
- M H Kabir
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - A Takenouchi
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.,Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - M I Haqani
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Y Nakamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.,Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - S Takeuchi
- Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.,Graduate School of Natural Science and Technology, Okayama University, Okayama, Okayama, 700-8530, Japan
| | - M Tsudzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.,Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
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Takenouchi A, Toshishige M, Ito N, Tsudzuki M. Endogenous viral gene ev21 is not responsible for the expression of late feathering in chickens. Poult Sci 2018; 97:403-411. [PMID: 29253229 DOI: 10.3382/ps/pex345] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 10/17/2017] [Indexed: 11/20/2022] Open
Abstract
The late-feathering (LF) gene K on the Z chromosome is an important gene in the chicken industry, which is frequently utilized for the feather sexing, a type of autosexing, of neonatal chicks. The K gene is closely associated with the endogenous ev21 gene from an avian leukosis virus and the incomplete duplication (ID) of prolactin receptor (PRLR) and sperm flagellar protein 2 (SPEF2) genes, and ev21 has been used as a molecular marker to detect LF birds. In the present study, a comprehensive survey for the presence or absence of ev21 and ID across 1,994 birds from 52 chicken breeds, three commercial hybrid groups, and the Red Jungle Fowl revealed that almost all LF breeds have both ev21 and ID. However, only one LF breed (Ingie) has only ID and no ev21. Moreover, this study revealed that almost all early (normal)-feathering (EF) breeds lack both ev21 and ID, but only one breed (White Plymouth Rock) included EF birds with ev21 but no ID. Therefore, regarding LF expression, the results indicated that ID is responsible, but ev21 is not required. Henceforth, ID should be used as a molecular marker to detect LF birds instead of ev21. Because ev21 contains the full genome of an avian leukosis virus, there is a risk of disease development in breeds with this gene. Therefore, the Ingie breed, which has no ev21 at the K locus, represents excellent material for the establishment of new LF stocks.
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Affiliation(s)
- A Takenouchi
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - M Toshishige
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - N Ito
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan.,Yamaguchi Prefectural Agriculture and Forestry General Technology Center, Mine, Yamaguchi 759-2221, Japan
| | - M Tsudzuki
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan.,Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
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Takenouchi A, SakuraiMatsukubo M, Matsukubo T. Interest in international programmes - a survey of Japanese dental hygiene students and educators. Int J Dent Hyg 2016; 15:e93-e99. [DOI: 10.1111/idh.12223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2016] [Indexed: 11/27/2022]
Affiliation(s)
- A Takenouchi
- Taiyo School of Dental Hygiene; Tokyo Japan
- Saitama Prefectural University; Saitama Prefecture Japan
| | | | - T Matsukubo
- Taiyo School of Dental Hygiene; Tokyo Japan
- Department of Epidemiology and Public Health; Tokyo Dental College; Tokyo Japan
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Fukunaga Y, Shigenobu K, Sumida K, Enoki T, Ishibashi S, Fujii T, Ono Y, Takenouchi A, Kawase K, Yamakido M. [Electrocardiogram in pulmonary heart disease--clinical evaluation of right chest leads]. Kokyu To Junkan 1990; 38:565-70. [PMID: 2377826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A clinical study was made to evaluate the usefulness of electrocardiograms in right precordial leads (V3r or V4R) for the diagnosis of cardiac complications among patients with chronic pulmonary disease. Walsh and colleagues reported that the change of direction in the terminal vector of QRS loop in the vector cardiogram is useful for the evaluation of chronic pulmonary heart disease. They showed that the terminal vectors of QRS loops tend to deviate to the right and/or posterior direction in the early stage of chronic pulmonary heart disease. We utilized the electrocardiograms in the right precordial leads to detect the second R waves, which are thought to reflect the terminal vectors of QRS loops in the vectorcardiograms. When the electrocardiograms in the right precordial leads were compared, the second R waves in leads V3R or V4R were more frequently observed among patients with chronic pulmonary heart disease than those without. However, in the same two groups, the frequency of second R waves in leads V5R or V6R didn't differ. We conclude that the second R waves in leads V3R or V4R in a patient with chronic lung disease suggest the presence of chronic pulmonary heart disease as a complication.
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Affiliation(s)
- Y Fukunaga
- 2nd Department of Internal Medicine, Hiroshima University School of Medicine
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