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Okochi S, Ogawa-Momohara M, Muro Y, Dittmer MR, Akiyama M. A single-centre cohort study on cutaneous manifestations of antinuclear matrix protein 2 antibody-positive dermatomyositis. Clin Exp Dermatol 2019; 45:591-593. [PMID: 31808188 DOI: 10.1111/ced.14152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2019] [Indexed: 11/29/2022]
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27
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Takeichi T, Matsumoto T, Nomura T, Takeda M, Niwa H, Kono M, Shimizu H, Ogi T, Akiyama M. A novel
NCSTN
missense mutation in the signal peptide domain causes hidradenitis suppurativa, which has features characteristic of an autoinflammatory keratinization disease. Br J Dermatol 2019; 182:491-493. [DOI: 10.1111/bjd.18445] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Fukushima K, Harada S, Takeuchi A, Kurihara A, Iida M, Fukai K, Kuwabara K, Kato S, Matsumoto M, Hirata A, Akiyama M, Tomita M, Hirayama A, Sato A, Suzuki C, Sugimoto M, Soga T, Sugiyama D, Okamura T, Takebayashi T. Association between dyslipidemia and plasma levels of branched-chain amino acids in the Japanese population without diabetes mellitus. J Clin Lipidol 2019; 13:932-939.e2. [PMID: 31601483 DOI: 10.1016/j.jacl.2019.09.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/10/2019] [Accepted: 09/04/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Branched-chain amino acids (BCAAs) play a key role in energy homeostasis. OBJECTIVE We aimed to investigate the association between plasma BCAA levels and dyslipidemia in the Japanese population without diabetes mellitus. METHODS This cross-sectional study included 4952 participants without diabetes mellitus, enrolled in the Tsuruoka Metabolomic Cohort Study. Plasma BCAA levels were measured by capillary electrophoresis-mass spectrometry. Correlations between lipid and BCAA profiles were evaluated by sex-stratified multiple linear regression analyses, after adjusting for confounders. Logistic regression was used to identify associations between BCAAs and metabolic dyslipidemia (MD) defined as triglyceride levels ≥150 mg/dL, high-density lipoprotein cholesterol levels ≤40 mg/dL for men and ≤50 mg/dL for women, or low-density lipoprotein cholesterol (LDL-C) levels ≥140 mg/dL. RESULTS In both sexes, the levels of individual BCAAs and the total BCAA levels correlated positively with triglyceride levels and negatively with high-density lipoprotein cholesterol levels. Valine, leucine, and total BCAA levels were weakly and positively correlated with LDL-C levels. Increased BCAA levels showed positive associations with MD. However, associations between BCAAs and elevated LDL-C levels were unclear. Furthermore, the associations between BCAA levels and MD regardless of fasting blood sugar (FBS) levels (high or low). Although valine, leucine, and total BCAA levels were weakly associated with elevated LDL-C levels in the high-FBS group, no such association was observed in the low-FBS group. CONCLUSIONS BCAAs might be associated with MD independently of the FBS level and might play an important role in lipid metabolism and dyslipidemia.
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Taki T, Takeichi T, Kono M, Sugiura K, Sugimura Y, Ishii N, Hashimoto T, Akiyama M. A patient with bullous pemphigoid with mucosal involvement serologically positive for anti‐BP230 autoantibodies only. Br J Dermatol 2019; 182:221-223. [DOI: 10.1111/bjd.18343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Taki T, Takeichi T, Sugiura K, Akiyama M. 195 Roles of aberrant hemichannel activities due to mutant connexin26 in the pathogenesis of KID syndrome. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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31
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Miyauchi T, Nomura T, Suzuki S, Takeda M, Peh J, Natsuga K, Fujita Y, Nishie W, Akiyama M, Shimizu H. 293 Pityriasis rubra pilaris type V with a heterozygous mutation in CARD14. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Yoshikawa T, Takeichi T, Suga Y, Kitajima Y, Akiyama M. Unique reticular hyperkeratotic eruptions seen in a patient with Darier's disease and attention deficit hyperactivity disorder. J Eur Acad Dermatol Venereol 2019; 34:e41-e43. [PMID: 31430409 DOI: 10.1111/jdv.15892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Dittmer MR, Ogawa-Momohara M, Muro Y, Kono M, Akiyama M. Remodelling of calcinosis cutis in a patient with scleroderma overlap syndrome. J Eur Acad Dermatol Venereol 2019; 34:e20-e21. [PMID: 31407385 DOI: 10.1111/jdv.15864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Akiyama M, Bray N. Increased healthcare costs for filaggrin-related eczema and asthma: hope for targeted management and prevention. Br J Dermatol 2019; 179:564-565. [PMID: 30222895 DOI: 10.1111/bjd.16819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Soga E, Akiyama M, Ohsaki Y, Hayashi W, Matsumoto T, Oana K, Nagano N, Kawakami Y. Isolation of a Capnophilic and Extended-Spectrum β-Lactamase-Producing Proteus mirabilis Strain from the Urine of an Octogenarian Male Patient with Acute Pyelonephritis. Jpn J Infect Dis 2019; 72:193-195. [PMID: 30504644 DOI: 10.7883/yoken.jjid.2018.201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A capnophilic Gram-negative rod-shaped bacterium was recovered from the urine of an octogenarian male patient with acute pyelonephritis. The isolate was found to produce CTX-M-2-type extended-spectrum β-lactamase. Interestingly, the isolate failed to grow on modified Drigalski (BTB) and MacConkey agar media, even under CO2-enriched atmosphere. Our analysis revealed that the pH-indicator dyes, bromothymol blue, and/or crystal violet that were incorporated into the agar media inhibited the growth of the isolate. Although routine identification methods using Vitek® 2 Compact systems were unsuccessful, the isolate was identified as Proteus mirabilis by 16S rRNA sequencing and MALDI-TOF MS analysis. The carbonic anhydrase (CA) region spanning approximately 2,000 bp upstream to 2,000 bp downstream, which is responsible for the CO2 requirement, was not amplified, which could be attributed to the large-scale deletion or mutation of the DNA sequences containing the CA gene region. In fact, revertants with the ability to grow without CO2 were not detected. However, a revertant that was capable of growing in both BTB and MacConkey agar was detected at frequencies less than 10-9. Therefore, the genes responsible for the highly sensitive reactions of the isolate to pH indicator dyes is not likely to be linked to the CA genes.
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Akiyama M. Congenital ichthyoses: there is always more to learn about managing these rare and complex diseases. Br J Dermatol 2019; 180:449-450. [DOI: 10.1111/bjd.17105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Murase Y, Takeichi T, Matsumoto T, Sakakibara A, Akiyama M. A juvenile male case of dermatofibrosarcoma protuberans on the breast. Clin Exp Dermatol 2019; 45:111-113. [PMID: 30820997 DOI: 10.1111/ced.13938] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2018] [Indexed: 11/29/2022]
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38
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Akiyama M, Nonomura M, Tero A, Kobayashi R. Numerical study on spindle positioning using phase field method. Phys Biol 2018; 16:016005. [PMID: 30485253 DOI: 10.1088/1478-3975/aaee45] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A method of numerical simulation of cell division using phase fields is presented. The cell division plane is obtained as a result of the spindle position and orientation considered with the spatial distribution of the activated cortical force generators and the dividing cell shape. To exemplify the application of the proposed method, numerical simulations of the development of cysts and early embryos are performed. The numerical results demonstrate that the activated cortical force generators that are localized at the lateral cortices of the epithelial cells lead to the formation of a single central lumen. It is additionally shown that the linear distribution of the activated cortical force generators along the animal-vegetal axis of a spherical cell engenders a similar cell proliferation of the divided embryo generated by the 32 cell period in a sea cucumber.
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Ogawa-Momohara M, Muro Y, Nakaguro M, Takeichi T, Kono M, Akiyama M. Acrodermatitis continua of Hallopeau with dense infiltration of IgG4-positive cells in the lesional dermis. Br J Dermatol 2018; 180:941-942. [PMID: 30411319 DOI: 10.1111/bjd.17405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Taki T, Takeichi T, Sugiura K, Akiyama M. Roles of aberrant hemichannel activities due to mutant connexin26 in the pathogenesis of KID syndrome. Sci Rep 2018; 8:12824. [PMID: 30150638 PMCID: PMC6110719 DOI: 10.1038/s41598-018-30757-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 08/03/2018] [Indexed: 12/13/2022] Open
Abstract
Germline missense mutations in GJB2 encoding connexin (Cx) 26 have been found in keratitis, ichthyosis and deafness (KID) syndrome. We explored the effects of three mouse Cx26 mutants (Cx26-G12R, -G45E and -D50N) corresponding to KID syndrome-causative human mutants on hemichannel activities leading to cell death and the expression of immune response-associated genes. We analyzed the 3D images of cells expressing wild-type (WT) or mutant Cx26 molecules to demonstrate clearly the intracellular localization of Cx26 mutants and hemichannel formation. High extracellular Ca2+ conditions lead to the closure of gap junction hemichannels in Cx26-G12R or Cx26-G45E expressing cells, resulting in prohibition of the Cx26 mutant-induced cell death. Fluorescent dye uptake assays revealed that cells with Cx26-D50N had aberrantly high hemichannel activities, which were abolished by a hemichannel blocker, carbenoxolone and 18α-Glycyrrhetinic acid. These results further support the idea that abnormal hemichannel activities play important roles in the pathogenesis of KID syndrome. Furthermore, we revealed that the expressions of IL15, CCL5, IL1A, IL23R and TLR5 are down-regulated in keratinocytes expressing Cx26-D50N, suggesting that immune deficiency in KID syndrome expressing Cx26-D50N might be associated not only with skin barrier defects, but also with the down-regulated expression of immune response-related genes.
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Horio T, Iwashima Y, Yoshihara F, Akiyama M, Okutsu M, Kawano Y. 6169Combination therapy with renin-angiotensin system inhibitors and statins is associated with reduced incidence of new-onset atrial fibrillation in hypertensive patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.6169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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Takeichi T, Sugiura K, Tanahashi K, Noda K, Kono M, Akiyama M. Autosomal dominant progressive hyperpigmentation and lentigines in a Japanese pedigree due to a missense mutation near the C-terminus of KIT. Br J Dermatol 2018; 179:1210-1211. [PMID: 29923175 DOI: 10.1111/bjd.16895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Kono M, Suganuma M, Shimada T, Ishikura Y, Watanabe S, Takeichi T, Muro Y, Akiyama M. Dyschromatosis symmetrica hereditaria with chilblains due to a novel two-amino-acid deletion in the double-stranded RNA-binding domain of ADAR1. J Eur Acad Dermatol Venereol 2018; 32:e394-e396. [DOI: 10.1111/jdv.15076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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Takeichi T, Honda A, Okuno Y, Kojima D, Kono M, Nakamura Y, Tohyama M, Tanaka T, Aoyama Y, Akiyama M. Sterol profiles are valuable biomarkers for phenotype expression of Conradi-Hünermann-Happle syndrome with EBP mutations. Br J Dermatol 2018; 179:1186-1188. [PMID: 29851033 DOI: 10.1111/bjd.16823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Kono M, Suganuma M, Dutta A, Ghosh S, Takeichi T, Muro Y, Akiyama M. Bilateral striatal necrosis and dyschromatosis symmetrica hereditaria: A-I editing efficiency of ADAR1
mutants and phenotype expression. Br J Dermatol 2018; 179:509-511. [DOI: 10.1111/bjd.16610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Kono M, Akiyama M, Inoue Y, Nomura T, Hata A, Okamoto Y, Takeichi T, Muro Y, McLean W, Shimizu H, Sugiura K, Suzuki Y, Shimojo N. Filaggrin gene mutations may influence the persistence of food allergies in Japanese primary school children. Br J Dermatol 2018; 179:190-191. [DOI: 10.1111/bjd.16375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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47
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Kono M, Niizawa M, Takeichi T, Muro Y, Akiyama M. Mild Hailey-Hailey disease cases with aberrant splicing variants of ATP2C1 successfully controlled with excimer light. J Eur Acad Dermatol Venereol 2018; 32:e413-e416. [PMID: 29705999 DOI: 10.1111/jdv.15004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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48
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Miyazawa H, Fujita Y, Iwata H, Ishikawa Y, Nishio S, Ishijima K, Shinmei Y, Takeichi T, Goto K, Oi R, Akiyama M, Shimizu H. Two cases of generalized pustular psoriasis complicated by IgG4-related disease. Br J Dermatol 2018; 179:537-539. [PMID: 29709076 DOI: 10.1111/bjd.16712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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49
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Murase C, Takeichi T, Shibata A, Nakatochi M, Kinoshita F, Ikeda S, Kurosawa M, Akiyama M. 258 National survey of quality of life and disease severity in patients with congenital ichthyosis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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50
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Fujita-Tanaka H, Ogawa Y, Muro Y, Ogawa-Momohara M, Asashima H, Tsuboi H, Sumida T, Akiyama M. Pansclerotic morphea associated with hypohidrosis and anti-M3 muscarinic acetylcholine receptor antibodies. Br J Dermatol 2018; 178:e210-e211. [DOI: 10.1111/bjd.16021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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