1. Flaxman, S. R. et al. Global causes of blindness and distance vision impairment 1990–2020: A systematic review and metaanalysis. Lancet Glob. Health 5, e1221–e1234. https://doi.org/10.1016/s2214-109x(17)30393-5 (2017).
2. Ung, L., Bispo, P. J. M., Shanbhag, S. S., Gilmore, M. S. & Chodosh, J. The persistent dilemma of microbial keratitis: Global
burden, diagnosis, and antimicrobial resistance. Surv. Ophthalmol. 64, 255–271. https://doi.org/10.1016/j.survophthal.2018.12.
003 (2019).
3. Ross, A. A., Nandakumar, K. & Jain, A. K. in Handbook of Multibiometrics 1–198 (Springer, 2006).
4. Zheng, Y., Pal, D. K. & Savvides, M. Ring Loss: Convex Feature Normalization for Face Recognition. In 2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 5089–5097 (2018).
5. Gu, H. et al. Deep learning for identifying corneal diseases from ocular surface slit-lamp photographs. Sci. Rep. 10, 17851. https://
doi.org/10.1038/s41598-020-75027-3 (2020).
6. Kakimaru-Hasegawa, A. et al. Clinical application of real-time polymerase chain reaction for diagnosis of herpetic diseases of
the anterior segment of the eye. Jpn. J. Ophthalmol. 52, 24–31. https://doi.org/10.1007/s10384-007-0485-7 (2008).
7. Xu, Y. et al. Deep sequential feature learning in clinical image classification of infectious keratitis. Engineering https://doi.org/
10.1016/j.eng.2020.04.012 (2020).
8. Li, W. et al. Dense anatomical annotation of slit-lamp images improves the performance of deep learning for the diagnosis of
ophthalmic disorders. Nat. Biomed. Eng. 4, 1–11. https://doi.org/10.1038/s41551-020-0577-y (2020).
9. Yip, M. Y. T. et al. Technical and imaging factors influencing performance of deep learning systems for diabetic retinopathy.
NPJ Digit Med. 3, 40. https://doi.org/10.1038/s41746-020-0247-1 (2020).
10. Ba, J., Kiros, J. & Hinton, G. E. Layer Normalization. http://arxiv.org/abs/1607.06450 (2016).
11. Dwivedi, R. & Dey, S. A novel hybrid score level and decision level fusion scheme for cancelable multi-biometric verification.
Appl. Intell. 49, 1016–1035 (2018).
12. Chidambaram, J. D. et al. Prospective study of the diagnostic accuracy of the in vivo laser scanning confocal microscope for
severe microbial keratitis. Ophthalmology https://doi.org/10.1016/j.ophtha.2016.07.009 (2016).
13. Bhadange, Y., Das, S., Kasav, M. K., Sahu, S. K. & Sharma, S. Comparison of culture-negative and culture-positive microbial
keratitis: Cause of culture negativity, clinical features and final outcome. Br. J. Ophthalmol. 99, 1498–1502. https://doi.org/10.
1136/bjophthalmol-2014-306414 (2015).
14. Shimizu, D. et al. Effectiveness of 16S ribosomal DNA real-time PCR and sequencing for diagnosing bacterial keratitis. Graefes
Arch. Clin. Exp. Ophthalmol. 258, 157–166. https://doi.org/10.1007/s00417-019-04434-8 (2020).
15. Inoue, T. et al. Utility of Fungiflora Y stain in rapid diagnosis of Acanthamoeba keratitis. Br. J. Ophthalmol. 83, 632–633. https://
doi.org/10.1136/bjo.83.5.628g (1999).
16. Miyazaki, D. et al. Efficacy of Gram-Fungiflora Y double staining in diagnosing infectious keratitis. Nippon Ganka Gakkai Zasshi
117, 351–356 (2013).
17. Ikeda, Y. et al. Assessment of real-time polymerase chain reaction detection of Acanthamoeba and prognosis determinants of
Acanthamoeba keratitis. Ophthalmology 119, 1111–1119. https://doi.org/10.1016/j.ophtha.2011.12.023 (2012).
18. Miyazaki, D. et al. Presence of Acanthamoeba and diversified bacterial flora in poorly maintained contact lens cases. Sci. Rep.
10, 12595. https://doi.org/10.1038/s41598-020-69554-2 (2020).
19. Szentmary, N. et al. Acanthamoeba keratitis: Clinical signs, differential diagnosis and treatment. J. Curr. Ophthalmol. 31, 16–23.
https://doi.org/10.1016/j.joco.2018.09.008 (2019).
20. He, K., Zhang, X., Ren, S., Sun, J. & Research, M. Deep residual learning for image recognition. CVPR https://doi.org/10.1109/
cvpr.2016.90 (2016).
Scientific Reports |
Vol:.(1234567890)
(2021) 11:22642 |
https://doi.org/10.1038/s41598-021-02138-w
10
www.nature.com/scientificreports/
21. Szegedy, C., Ioffe, S., Vanhoucke, V. & Alemi, A. Inception-v4, Inception-ResNet and the Impact of Residual Connections on
Learning. In Proceedings of the Thirty-First AAAI Conference on Artificial Intelligence 4278–4284, https://doi.org/10.5555/32980
23.3298188 (2017).
22. Al Kharousi, N. & Wali, U. K. Confoscan: An ideal therapeutic aid and screening tool in acanthamoeba keratitis. Middle East
Afr. J. Ophthalmol. 19, 422–425. https://doi.org/10.4103/0974-9233.102766 (2012).
23. Alfawaz, A. Radial keratoneuritis as a presenting sign in acanthamoeba keratitis. Middle East Afr. J. Ophthalmol. 18, 252–255.
https://doi.org/10.4103/0974-9233.84062 (2011).
24. Alkatan, H. M. & Al-Essa, R. S. Challenges in the diagnosis of microbial keratitis: A detailed review with update and general
guidelines. Saudi J. Ophthalmol. 33, 268–276. https://doi.org/10.1016/j.sjopt.2019.09.002 (2019).
25. Altun, A. et al. Effectiveness of posaconazole in recalcitrant fungal keratitis resistant to conventional antifungal drugs. Case Rep.
Ophthalmol. Med. 2014, 701653. https://doi.org/10.1155/2014/701653 (2014).
26. Bagga, B. et al. Efficacy of topical miltefosine in patients with acanthamoeba keratitis: A pilot study. Ophthalmology 126, 768–770.
https://doi.org/10.1016/j.ophtha.2018.12.028 (2019).
27. Bagga, B., Kate, A., Joseph, J. & Dave, V. P. Herpes simplex infection of the eye: An introduction. Commun. Eye Health 33, 68–70
(2020).
28. Bautista-Ruescas, V., Blanco-Marchite, C. I., Donate-Tercero, A., BlancoMarchite, N. & Alvarruiz-Picazo, J. Streptococcus pneumoniae keratitis, a case report. Arch. Med. 1, 1–3. https://doi.org/10.3823/031 (2009).
29. Bethke, W. Meeting the challenge of fungal keratitis. Rev. Ophthalmol. (2013). https://www.reviewofophthalmology.com/artic
le/meeting-the-challenge-of-fungal-keratitis-44204.
30. Bronner, A. Managing microbial keratitis. Rev. Cornea Contact Lenses (2017). https://www.reviewofcontactlenses.com/article/
rccl1117-managing-microbial-keratitis.
31. Bronner, A. Fungal ulcers: Missed and misunderstood. Rev. Cornea Contact Lenses (2018). https://www.reviewofcontactlenses.
com/article/fungal-ulcers-missed-and-misunderstood.
32. Carnt, N., Samarawickrama, C., White, A. & Stapleton, F. The diagnosis and management of contact lens-related microbial
keratitis. Clin. Exp. Optom. 100, 482–493. https://doi.org/10.1111/cxo.12581 (2017).
33. Carnt, N. A. & Dart, J. K. Diagnosing Acanthamoeba keratitis: What does the future hold?. Int. J. Ophthalmic Pract. 5, 129–133.
https://doi.org/10.12968/ijop.2014.5.4.129 (2014).
34. Cheng, S. C., Lin, Y. Y., Kuo, C. N. & Lai, L. J. Cladosporium keratitis: A case report and literature review. BMC Ophthalmol. 15,
106. https://doi.org/10.1186/s12886-015-0092-1 (2015).
35. Cheung, N. C. & Hammersmith, K. M. Keeping the bugs at bay: Fungi and protozoa in contact lens wearers. Rev. Cornea Contact
Lenses, 16–21 (2015).
36. Dalmon, C. et al. The clinical differentiation of bacterial and fungal keratitis: A photographic survey. Invest. Ophthalmol. Vis.
Sci. 53, 1787–1791. https://doi.org/10.1167/iovs.11-8478 (2012).
37. Das, S., Rao, A. S., Sahu, S. K. & Sharma, S. Corynebacterium spp as causative agents of microbial keratitis. Br. J. Ophthalmol.
100, 939–943. https://doi.org/10.1136/bjophthalmol-2015-306749 (2016).
38. Di Zazzo, A. et al. A global perspective of pediatric non-viral keratitis: literature review. Int. Ophthalmol. 40, 2771–2788. https://
doi.org/10.1007/s10792-020-01451-z (2020).
39. Doliveira, P. C. B. & Bisol, T. Contact lens-related bilateral and simultaneous Acremonium keratitis. Rev. Bras. Oftalmol. 76,
213–215. https://doi.org/10.5935/0034-7280.20170044 (2017).
40. Eghrari, A. O. et al. First human case of fungal keratitis caused by a Putatively novel species of Lophotrichus. J. Clin. Microbiol.
53, 3063–3067. https://doi.org/10.1128/JCM.00471-15 (2015).
41. Feizi, S. & Azari, A. A. Approaches toward enhancing survival probability following deep anterior lamellar keratoplasty. Ther.
Adv. Ophthalmol. 12, 2515841420913014. https://doi.org/10.1177/2515841420913014 (2020).
42. Fernandes, M., Gangopadhyay, N. & Sharma, S. Stenotrophomonas maltophilia keratitis after penetrating keratoplasty. Eye 19,
921–923. https://doi.org/10.1038/sj.eye.6701673 (2005).
43. Fu, L. & Gomaa, A. Acanthamoeba keratitis. N. Engl. J. Med. 381, 274. https://doi.org/10.1056/NEJMicm1817678 (2019).
44. Fukumoto, A., Sotozono, C., Hieda, O. & Kinoshita, S. Infectious keratitis caused by fluoroquinolone-resistant Corynebacterium.
Jpn. J. Ophthalmol. 55, 579–580. https://doi.org/10.1007/s10384-011-0052-0 (2011).
45. Garg, P. Fungal, Mycobacterial, and Nocardia infections and the eye: An update. Eye 26, 245–251. https://doi.org/10.1038/eye.
2011.332 (2012).
46. Garg, P., Kalra, P. & Joseph, J. Non-contact lens related Acanthamoeba keratitis. Indian J. Ophthalmol. 65, 1079–1086. https://
doi.org/10.4103/ijo.IJO_826_17 (2017).
47. Garg, P. & Rao, G. N. Corneal ulcer: Diagnosis and management. Commun. Eye Health 12, 21–23 (1999).
48. Gjerde, H. & Mishra, A. Contact lens-related Pseudomonas aeruginosa keratitis in a 49-year-old woman. CMAJ 190, E54. https://
doi.org/10.1503/cmaj.171165 (2018).
49. Hamroush, A. & Welch, J. Herpes simplex epithelial keratitis associated with daily disposable contact lens wear. Cont. Lens
Anterior Eye 37, 228–229. https://doi.org/10.1016/j.clae.2013.11.007 (2014).
50. Hassan, H. M., Papanikolaou, T., Mariatos, G., Hammad, A. & Hassan, H. Candida albicans keratitis in an immunocompromised
patient. Clin. Ophthalmol. 4, 1211–1215. https://doi.org/10.2147/OPTH.S7953 (2010).
51. Hilliam, Y., Kaye, S. & Winstanley, C. Pseudomonas aeruginosa and microbial keratitis. J. Med. Microbiol. 69, 3–13. https://doi.
org/10.1099/jmm.0.001110 (2020).
52. Hirabayashi, K. E., Lin, C. C. & Ta, C. N. Oral miltefosine for refractory Acanthamoeba keratitis. Am. J. Ophthalmol. Case Rep.
16, 100555. https://doi.org/10.1016/j.ajoc.2019.100555 (2019).
53. Hoarau, G. et al. Moraxella keratitis: Epidemiology and outcomes. Eur. J. Clin. Microbiol. Infect. Dis. 39, 2317–2325. https://doi.
org/10.1007/s10096-020-03985-7 (2020).
54. Hoffman, J., Burton, M. & Foster, A. Common and important ocular surface conditions. Commun. Eye Health 29, 50–51 (2016).
55. Hue, B., Doat, M., Renard, G., Brandely, M. L. & Chast, F. Severe keratitis caused by Pseudomonas aeruginosa successfully treated
with ceftazidime associated with acetazolamide. J. Ophthalmol. 2009, 794935. https://doi.org/10.1155/2009/794935 (2009).
56. Karsten, E., Watson, S. L. & Foster, L. J. Diversity of microbial species implicated in keratitis: A review. Open Ophthalmol. J. 6,
110–124. https://doi.org/10.2174/1874364101206010110 (2012).
57. Kent, D. & Mangan, R. Find infectious keratitis’s root. Rev. Optometry (2019). https://www.reviewofoptometr y.com/article/
find-infectious-keratitiss-root.
58. Khor, W. B. et al. An outbreak of Fusarium keratitis associated with contact lens wear in Singapore. JAMA 295, 2867–2873.
https://doi.org/10.1001/jama.295.24.2867 (2006).
59. Khurana, A. et al. Clinical characteristics, predisposing factors, and treatment outcome of Curvularia keratitis. Indian J. Ophthalmol. 68, 2088–2093. https://doi.org/10.4103/ijo.IJO_90_20 (2020).
60. Kim, S. J., Cho, Y. W., Seo, S. W., Kim, S. J. & Yoo, J. M. Clinical experiences in fungal keratitis caused by Acremonium. Clin.
Ophthalmol. 8, 283–287. https://doi.org/10.2147/OPTH.S54255 (2014).
61. Kodavoor, S. K., Sarwate, N. J. & Ramamurhy, D. Microbial keratitis following accelerated corneal collagen cross-linking. Oman
J. Ophthalmol. 8, 111–113. https://doi.org/10.4103/0974-620X.159259 (2015).
62. Kolkata, B. S. in Diseases of the Cornea Ch. 4, (2011).
Scientific Reports |
(2021) 11:22642 |
https://doi.org/10.1038/s41598-021-02138-w
11
Vol.:(0123456789)
www.nature.com/scientificreports/
63. Kumar, A. & Khurana, A. Bilateral curvularia keratitis. J. Ophthalmic. Vis. Res. 15, 574–575. https://doi.org/1 0.1 8502/jovr.v15i4.
7796 (2020).
64. Kuo, M. T., Chen, J. L., Hsu, S. L., Chen, A. & You, H. L. An omics approach to diagnosing or investigating fungal keratitis. Int.
J. Mol. Sci. https://doi.org/10.3390/ijms20153631 (2019).
65. Kuo, M. T. et al. A deep learning approach in diagnosing fungal keratitis based on corneal photographs. Sci. Rep. 10, 14424.
https://doi.org/10.1038/s41598-020-71425-9 (2020).
66. Leck, A. & Burton, M. Distinguishing fungal and bacterial keratitis on clinical signs. Commun. Eye Health 28, 6–7 (2015).
67. Lee, C. Y. et al. Recurrent fungal keratitis and blepharitis caused by Aspergillus flavus. Am. J. Trop. Med. Hyg. 95, 1216–1218.
https://doi.org/10.4269/ajtmh.16-0453 (2016).
68. Leon, S. Herpes simplex keratitis: Managing the masquerader. Rev. Cornea Contact Lenses (2020). https://www.reviewofcontact
lenses.com/article/herpes-simplex-keratitis-managing-the-masquerader.
69. Lindquist, T. D., Sher, N. A. & Doughman, D. J. Clinical signs and medical therapy of early Acanthamoeba keratitis. Arch.
Ophthalmol. 106, 73–77. https://doi.org/10.1001/archopht.1988.01060130079033 (1988).
70. Lorenzo-Morales, J., Khan, N. A. & Walochnik, J. An update on Acanthamoeba keratitis: Diagnosis, pathogenesis and treatment.
Parasite 22, 10. https://doi.org/10.1051/parasite/2015010 (2015).
71. Miller, D., Cavuoto, K. M. & Alfonso, E. C. in Infections of the Cornea and Conjunctiva (eds S. Das & V. Jhanji) 85–104 (Springer,
2020).
72. Murphy, A. L. & Frick, R. Understanding corneal infection care. Rev, Cornea Contact Lenses (2015). https://www.reviewofco
ntactlenses.com/article/understanding-corneal-infection-care.
73. Mutoh, T., Matsumoto, Y. & Chikuda, M. A case of radial keratoneuritis in non-Acanthamoeba keratitis. Clin. Ophthalmol. 6,
1535–1538. https://doi.org/10.2147/OPTH.S36192 (2012).
74. Nguyen, V. & Lee, G. A. Management of microbial keratitis in general practice. Aust. J. Gen. Pract. 48, 516–519. https://doi.org/
10.31128/AJGP-02-19-4857 (2019).
75. Nivenius, E. & Montan, P. Candida albicans should be considered when managing keratitis in Atopic keratoconjunctivitis. Acta
Ophthalmol. 93, 579–580. https://doi.org/10.1111/aos.12708 (2015).
76. Nizeyimana, H. et al. Clinical efficacy of conjunctival flap surgery in the treatment of refractory fungal keratitis. Exp. Ther. Med.
14, 1109–1113. https://doi.org/10.3892/etm.2017.4605 (2017).
77. Ospina, P. D. in Keratoplasties - Surgical techniques and complications 101–120 (Intechopen, 2012).
78. Palme, C., Steger, B., Haas, G., Teuchner, B. & Bechrakis, N. E. Severe reactive ischemic posterior segment inflammation in
Acanthamoeba keratitis: Case report of a patient with Sjogren’s syndrome. Spektrum Augenheilkd 31, 10–13. https://doi.org/10.
1007/s00717-017-0334-0 (2017).
79. Pérez-Balbuena, A. L., Santander-García, D., Vanzzini-Zago, V. & Cuevas-Cancino, D. in Keratoplasties - Surgical Techniques
and Complications Ch. 2, 11–32 (2012).
80. Reddy, J. C. & Rapuano, C. J. Current concepts in the management of herpes simplex anterior segment eye disease. Curr. Ophthalmol. Rep. 1, 194–203 (2013).
81. Robles-Contreras, A. et al. in Common Eye Infections (Intechopen, 2013).
82. Sanz-Marco, E., Lopez-Prats, M. J., Garcia-Delpech, S., Udaondo, P. & Diaz-Llopis, M. Fulminant bilateral Haemophilus influenzae keratitis in a patient with hypovitaminosis A treated with contaminated autologous serum. Clin. Ophthalmol. 5, 71–73.
https://doi.org/10.2147/OPTH.S15847 (2011).
83. Shah, S. I. A. Etiology of infectious keratitis as seen at a tertiary care center in Larkana, Pakistan. Pak. J. Ophthalmol. 32, 48–52
(2016).
84. Shi, W. et al. Risk factors, clinical features, and outcomes of recurrent fungal keratitis after corneal transplantation. Ophthalmology 117, 890–896. https://doi.org/10.1016/j.ophtha.2009.10.004 (2010).
85. Shrestha, G. S., Vijay, A. K., Stapleton, F., Henriquez, F. L. & Carnt, N. Understanding clinical and immunological features
associated with Pseudomonas and Staphylococcus keratitis. Cont. Lens. Anterior Eye 44, 3–13. https://doi.org/10.1016/j.clae.
2020.11.014 (2021).
86. Sibley, D. & Larkin, D. F. P. Update on Herpes simplex keratitis management. Eye 34, 2219–2226. https://d
oi.o
rg/1 0.1 038/s 41433-
020-01153-x (2020).
87. Sowka, J. & Kabat, A. G. Make this virus vanish. Rev. Optometry 144 (2007). https://www.reviewofoptometr y.com/article/
make-this-virus-vanish.
88. Tabatabaei, S. A., Tabatabaei, M., Soleimani, M. & Tafti, Z. F. Fungal keratitis caused by rare organisms. J. Curr. Ophthalmol. 30,
91–96. https://doi.org/10.1016/j.joco.2017.08.004 (2018).
89. Tan, C. S., Krishnan, P. U., Foo, F. Y., Pan, J. C. & Voon, L. W. Neisseria meningitidis keratitis in adults: A case series. Ann. Acad.
Med. Singap. 35, 837–839 (2006).
90. Thomas, P. A. Fungal infections of the cornea. Eye 17, 852–862. https://doi.org/10.1038/sj.eye.6700557 (2003).
91. Thomas, P. A. & Kaliamurthy, J. Mycotic keratitis: Epidemiology, diagnosis and management. Clin. Microbiol. Infect. 19, 210–220.
https://doi.org/10.1111/1469-0691.12126 (2013).
92. Trobe, J. D. in The Physician’s Guide to Eye Care Ch. 188, (American Academy of Ophthalmology, 1993).
93. Tu, E. Y., Joslin, C. E., Sugar, J., Shoff, M. E. & Booton, G. C. Prognostic factors affecting visual outcome in Acanthamoeba
keratitis. Ophthalmology 115, 1998–2003. https://doi.org/10.1016/j.ophtha.2008.04.038 (2008).
94. Upadhyay, M. P., Srinivasan, M. & Whitcher, J. P. Diagnosing and managing microbial keratitis. Commun. Eye Health 28, 3–6
(2015).
95. Vanzzini Zago, V., Alcantara Castro, M. & Naranjo Tackman, R. Support of the laboratory in the diagnosis of fungal ocular
infections. Int. J. Inflam. 2012, 643104. https://doi.org/10.1155/2012/643104 (2012).
96. Vemuganti, G. K., Pasricha, G., Sharma, S. & Garg, P. Granulomatous inflammation in Acanthamoeba keratitis: An immunohistochemical study of five cases and review of literature. Indian J. Med. Microbiol. 23, 231–238 (2005).
97. Watson, S., Cabrera-Aguas, M. & Khoo, P. Common eye infections. Aust. Prescr. 41, 67–72. https://doi.org/10.18773/austprescr.
2018.016 (2018).
98. Wilhelmus, K. R. et al. Bilateral acanthamoeba keratitis. Am. J. Ophthalmol. 145, 193–197. https://doi.org/10.1016/j.ajo.2007.
09.037 (2008).
99. Zago, V. V. & Perez-Balbuena, A. L. in Common Eye Infections (Intechopen, 2013).
100. Elmer, Y. T. C. et al. Prognostic factors affecting visual outcome in Acanthamoeba keratitis. Ophthalmology 115, 1998–2003.
https://doi.org/10.1016/j.ophtha.2008.04.038 (2008).
101. Gaurav, P. K. et al. The three faces of herpes simplex epithelial keratitis: A steroid-induced situation. BMJ J. https://doi.org/10.
1136/bcr-2014-209197 (2015).
102. Nicole, C. et al. diagnosis and management of contact lens-related microbial keratitis. Clin. Exp. Optometry 100, 482–493. https://
doi.org/10.1111/cxo.12581 (2017).
103. Shreesha, K. K. et al. Microbial keratitis following accelerated corneal collagen cross-linking. Oman J. Ophythalmol. 8, 111–113.
https://doi.org/10.4103/0974-620X.159259 (2015).
Scientific Reports |
Vol:.(1234567890)
(2021) 11:22642 |
https://doi.org/10.1038/s41598-021-02138-w
12
www.nature.com/scientificreports/
Acknowledgements
This work was supported by Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, and Culture: 17K11481, 21K09720, and 21K09742.
Author contributions
A.K. and D.M. designed the research study and analyzed data. A.K. and D.M. wrote the manuscript. A.K. and
Y.S. performed experiments. D.M., Y.N., and Y.A. wrote the code for deep learning models and GBDT. A.K.,
D.M., H.M., F.E., S.S., and Y.I. conducted evaluation on diagnosis of clinical images. Y.I. supervised experiments
and data analysis. All of the authors approved the manuscript to be published and agreed to be accountable for
all aspects of the study.
Competing interests Dai Miyazaki reports lecture fee from Santen Pharmaceutical, Senju Pharmaceutical, Alcon, outside the submitted work. Funding: Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, and
Culture, 21K09742. Yoshitsugu Inoue reports grants and lecture fee from Senju Pharmaceutical Co, Ltd., grants
from Santen Pharmaceutical Co, Ltd., grants from Alcon Japan, Ltd., outside the submitted work. Funding:
Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, and Culture, 17K11481,
21K09720. Ayumi Koyama, Yuji Nakagawa, Yuji Ayatsuka, Hitomi Miyake, Fumie Ehara, Shin-ichi Sasaki, and
Yumiko Shimizu declare no competing interests.
Additional information
Supplementary Information The online version contains supplementary material available at https://doi.org/
10.1038/s41598-021-02138-w.
Correspondence and requests for materials should be addressed to D.M.
Reprints and permissions information is available at www.nature.com/reprints.
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and
institutional affiliations.
Open Access This article is licensed under a Creative Commons Attribution 4.0 International
License, which permits use, sharing, adaptation, distribution and reproduction in any medium or
format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the
Creative Commons licence, and indicate if changes were made. The images or other third party material in this
article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the
material. If material is not included in the article’s Creative Commons licence and your intended use is not
permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from
the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
© The Author(s) 2021
Scientific Reports |
(2021) 11:22642 |
https://doi.org/10.1038/s41598-021-02138-w
13
Vol.:(0123456789)
...