Sakiko Hiraoka

  • 1116 Citations
  • 18 h-Index
20042020

Research output per year

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Research Output

  • 1116 Citations
  • 18 h-Index
  • 87 Article
  • 4 Review article
  • 1 Comment/debate
  • 1 Letter
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Article
2020
Open Access

Cytomegalovirus colitis followed by colonic pseudolipomatosis and gastric emphysema in a Post-resuscitation Patient

Iwamuro, M., Tanaka, T., Yamauchi, N., Nakashima, Y., Wada, T., Hiraoka, S., Kawahara, Y. & Okada, H., Feb 15 2020, In : Internal Medicine. 59, 4, p. 519-525 7 p.

Research output: Contribution to journalArticle

Open Access

High-resolution melt analysis enables simple genotyping of complicated polymorphisms of codon 18 rendering the NUDT15 diplotype

for the MENDEL study group, Jan 1 2020, In : Journal of Gastroenterology. 55, 1, p. 67-77 11 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Multicenter survey on mesalamine intolerance in patients with ulcerative colitis

Hiraoka, S., Fujiwara, A., Toyokawa, T., Higashi, R., Moritou, Y., Takagi, S., Matsueda, K., Suzuki, S., Miyaike, J., Inokuchi, T., Takahara, M., Kato, J. & Okada, H., 2020, (Accepted/In press) In : Journal of Gastroenterology and Hepatology (Australia).

Research output: Contribution to journalArticle

2019

A granulation polyp in the colon masquerading as metastatic cancer

Iwamuro, M., Takahara, M., Yamazaki, T., Tanaka, T., Kondo, Y., Hiraoka, S. & Okada, H., 2019, In : Acta medica Okayama. 73, 5, p. 457-461 5 p.

Research output: Contribution to journalArticle

Berberine improved experimental chronic colitis by regulating interferon-γ- and IL-17A-producing lamina propria CD4+ T cells through AMPK activation

Takahara, M., Takaki, A., Hiraoka, S., Adachi, T., Shimomura, Y., Matsushita, H., Nguyen, T. T. T., Koike, K., Ikeda, A., Takashima, S., Yamasaki, Y., Inokuchi, T., Kinugasa, H., Sugihara, Y., Harada, K., Eikawa, S., Morita, H., Udono, H. & Okada, H., Dec 1 2019, In : Scientific reports. 9, 1, 11934.

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)

Blue laser imaging and linked color imaging improve the color difference value and visibility of colorectal polyps in underwater conditions

Yamasaki, Y., Harada, K., Yamamoto, S., Yasutomi, E., Okanoue, S., Hirai, M., Oka, S., Obayashi, Y., Sakae, H., Hamada, K., Inokuchi, T., Kinugasa, H., Sugihara, Y., Takahara, M., Tanaka, T., Hiraoka, S., Kawahara, Y. & Okada, H., Nov 23 2019, In : Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Comparison of two electrosurgical modes for endoscopic submucosal dissection of superficial colorectal neoplasms: A prospective randomized study

Sugihara, Y., Harada, K., Oka, S., Yasutomi, E., Ymasaki, Y., Inokuchi, T., Kinugasa, H., Takahara, M., Hiraoka, S., Otsuka, F. & Okada, H., 2019, In : Acta medica Okayama. 73, 1, p. 81-84 4 p.

Research output: Contribution to journalArticle

Concerns and Side Effects of Azathioprine during Adalimumab Induction and Maintenance Therapy for Japanese Patients with Crohn's Disease: A Subanalysis of a Prospective Randomised Clinical Trial [DIAMOND Study]

Hisamatsu, T., Matsumoto, T., Watanabe, K., Nakase, H., Motoya, S., Yoshimura, N., Ishida, T., Kato, S., Nakagawa, T., Esaki, M., Nagahori, M., Matsui, T., Naito, Y., Kanai, T., Suzuki, Y., Nojima, M., Watanabe, M., Hibi, T., Andoh, A., Ashida, T. & 71 others, Endo, K., Endo, Y., Esaki, M., Fujita, H., Fujiya, M., Haruma, K., Hibi, T., Hiraoka, S., Hirata, I., Hisamatsu, T., Honda, Y., Iijima, H., Iizuka, B., Ikeya, K., Inoue, T., Inoue, S., Ishida, T., Ishiguro, Y., Ishihara, S., Ito, H., Iwakiri, R., Kagaya, T., Kanai, T., Kashida, H., Kato, S., Kato, J., Katsurada, T., Kinjyo, F., Kobayashi, K., Kodama, M., Kunisaki, R., Kurahara, K., Kurokami, T., Kyouwon, L., Matsuda, K., Matsueda, K., Matsui, T., Matsumoto, T., Mitsuyama, K., Mizokami, Y., Motoya, S., Naito, Y., Nakagawa, T., Nakamura, S., Nakase, H., Nojima, M., Nomura, M., Ogawa, A., Okazaki, K., Otsuka, K., Sakuraba, H., Saruta, M., Sasaki, M., Shirai, T., Suga, T., Sugimura, K., Sugiyama, T., Suzuki, Y., Takeshima, F., Tamaki, H., Tanaka, S., Tanida, S., Tominaga, K., Tomizawa, T., Watanabe, K., Watanabe, M., Watanabe, K., Yamamoto, S., Yamashita, M., Yoshida, A. & Yoshimura, N., Sep 1 2019, In : Journal of Crohn's and Colitis. 13, 9, p. 1097-1104 8 p.

Research output: Contribution to journalArticle

Feasibility of Underwater Clip Closure for Large Mucosal Defects after Colorectal Endoscopic Submucosal Dissection

Yamasaki, Y., Harada, K., Oka, S., Takashima, S., Inokuchi, T., Sugihara, Y., Takahara, M., Hiraoka, S. & Okada, H., May 1 2019, In : Digestion. 99, 4, p. 327-332 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Long-term outcomes of patients with Crohn's disease who received infliximab or adalimumab as the first-line biologics

Inokuchi, T., Takahashi, S., Hiraoka, S., Toyokawa, T., Takagi, S., Takemoto, K., Miyaike, J., Fujimoto, T., Higashi, R., Morito, Y., Nawa, T., Suzuki, S., Nishimura, M., Inoue, M., Kato, J. & Okada, H., 2019, In : Journal of Gastroenterology and Hepatology (Australia). 34, 8, p. 1329-1336 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Report on the results of the questionnaire for female endoscopists about the education and training system for female trainee endoscopists.

Harada, N., Hiraoka, S., Nakamura, S. I., Shiratori, K., Haruma, K., Kawai, T., Morita, Y., Yokoi, C. & Minami, H., Jan 1 2019, In : GASTROENTEROLOGICAL ENDOSCOPY. 61, 6, p. 1264-1271 8 p.

Research output: Contribution to journalArticle

Withdrawal of thiopurines in Crohn’s disease treated with scheduled adalimumab maintenance: a prospective randomised clinical trial (DIAMOND2)

DIAMOND2 Study Group, Oct 1 2019, In : Journal of Gastroenterology. 54, 10, p. 860-870 11 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2018

A case of diffuse esophageal spasm treated with peroral endoscopic myotomy

Sugihara, Y., Harada, K., Kato, R., Yamauchi, K., Sakae, H., Kawano, S., Hiraoka, S., Kawahara, Y., Otsuka, F. & Okada, H., 2018, In : Acta medica Okayama. 72, 6, p. 595-600 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

An elevated platelet count increases the risk of relapse in ulcerative colitis patients with mucosal healing

Nakarai, A., Kato, J., Hiraoka, S., Takashima, S., Inokuchi, T., Takahara, M., Sugihara, Y., Harada, K. & Okada, H., Jul 2018, In : Gut and liver. 12, 4, p. 420-425 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Clinical and Pharmacokinetic Factors Associated With Adalimumab-Induced Mucosal Healing in Patients With Crohn's Disease

DIAMOND study group, Apr 1 2018, In : Clinical Gastroenterology and Hepatology. 16, 4, p. 542-549.e1

Research output: Contribution to journalArticle

21 Citations (Scopus)

Clinical features of chronic enteropathy associated with SLCO2A1 gene: a new entity clinically distinct from Crohn’s disease

The CEAS study group, Aug 1 2018, In : Journal of Gastroenterology. 53, 8, p. 907-915 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Colonoscopy examination requires a longer time in patients with acromegaly than in other individuals

Iwamuro, M., Yasuda, M., Hasegawa, K., Fujisawa, S., Ogura-Ochi, K., Sugihara, Y., Harada, K., Hiraoka, S., Okada, H. & Otsuka, F., 2018, In : Endocrine journal. 65, 2, p. 151-157 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Efficacy of restarting anti-tumor necrosis factor α agents after surgery in patients with Crohn's disease

Hiraoka, S., Takashima, S., Kondo, Y., Inokuchi, T., Sugihara, Y., Takahara, M., Kawano, S., Harada, K., Kato, J. & Okada, H., 2018, In : Intestinal Research. 16, 1, p. 75-82 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Evaluation of the upper gastrointestinal tract in ulcerative colitis patients

Kato, R., Iwamuro, M., Hiraoka, S., Takashima, S., Inokuchi, T., Takahara, M., Kondo, Y., Tanaka, T. & Okada, H., 2018, In : Acta medica Okayama. 72, 2, p. 105-113 9 p.

Research output: Contribution to journalArticle

Fecal immunochemical test and fecal calprotectin results show different profiles in disease monitoring for ulcerative colitis

Hiraoka, S., Inokuchi, T., Nakarai, A., Takashima, S., Takei, D., Sugihara, Y., Takahara, M., Harada, K., Okada, H. & Kato, J., Mar 2018, In : Gut and liver. 12, 2, p. 142-148 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
20 Citations (Scopus)

Pseudolipomatosis of the colon and cecum followed by pneumatosis intestinalis

Iwamuro, M., Tanaka, T., Kawabata, T., Sugihara, Y., Harada, K., Hiraoka, S. & Okada, H., 2018, In : Internal Medicine. 57, 17, p. 2501-2504 4 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Retention of patency capsule in a patient with Crohn's disease

Iwamura, M., Takashima, S., Iguchi, T., Takahara, M., Kawano, S., Hiraoka, S., Kondo, Y., Tanaka, T. & Okada, H., 2018, In : Journal of Japanese Society of Gastroenterology. 115, 2, p. 203-210 8 p.

Research output: Contribution to journalArticle

Simultaneous measurements of faecal calprotectin and the faecal immunochemical test in quiescent ulcerative colitis patients can stratify risk of relapse

Nakarai, A., Hiraoka, S., Takahashi, S., Inaba, T., Higashi, R., Mizuno, M., Takashima, S., Inokuchi, T., Sugihara, Y., Takahara, M., Harada, K., Kato, J. & Okada, H., Jan 1 2018, In : Journal of Crohn's and Colitis. 12, 1, p. 71-76 6 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Ten initial cases of peroral endoscopic myotomy for treatment of esophageal motility disorders at Okayama University Hospital

Sugihara, Y., Harada, K., Kato, R., Yamauchi, K., Takashima, S., Takei, D., Yamasaki, Y., Inokuchi, T., Takahara, M., Hiraoka, S. & Okada, H., 2018, In : Acta medica Okayama. 72, 2, p. 99-104 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
1 Citation (Scopus)
2017

Acute Appendicitis Caused by Previous Endoscopic Submucosal Dissection for an Adenoma Adjacent to the Appendiceal Orifice

Kato, R., Harada, K., Harada, K., Takei, D., Sugihara, Y., Takashima, S., Inokuchi, T., Takahara, M., Hiraoka, S., Omura, Y., Oda, W. & Okada, H., May 17 2017, (Accepted/In press) In : Case Reports in Gastroenterology. p. 271-276 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Comparing reduced-dose sodium phosphate tablets to 2 L of polyethylene glycol: A randomized study

Ako, S., Takemoto, K., Yasutomi, E., Sakaguchi, C., Murakami, M., Sunami, T., Oka, S., Kenta, H., Okazaki, N., Baba, Y., Yamasaki, Y., Asato, T., Kawai, D., Takenaka, R., Tsugeno, H., Fujiki, S., Hiraoka, S. & Kato, J., Jun 28 2017, In : World journal of gastroenterology. 23, 24, p. 4454-4461 8 p.

Research output: Contribution to journalArticle

Findings of Retrograde Contrast Study Through Double-balloon Enteroscopy Predict the Risk of Bowel Resections in Patients with Crohn's Disease with Small Bowel Stenosis

Okazaki, N., Inokuchi, T., Hiraoka, S., Ohmori, M., Takashima, S., Takei, D., Sugihara, Y., Takahara, M., Harada, K., Kawano, S., Okada, H. & Kato, J., Dec 1 2017, In : Inflammatory bowel diseases. 23, 12, p. 2097-2103 7 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Metachronous neoplasia and local recurrence after colorectal endoscopic submucosal dissection

Takei, D., Harada, K., Takashima, S., Inokuchi, T., Nakarai, A., Sugihara, Y., Takahara, M., Hiraoka, S. & Okada, H., 2017, In : Acta medica Okayama. 71, 6, p. 475-483 9 p.

Research output: Contribution to journalArticle

Report on the results of a questionnaire on the education and training system for female trainee endoscopists

Harada, N., Nakamura, S. I., Hiraoka, S., Shiratori, K., Haruma, K., Kawai, T., Morita, Y., Yokoi, C. & Minami, H., Nov 1 2017, In : Gastroenterological Endoscopy. 59, 11, p. 2640-2646 7 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

The usefulness of colonoscopy for the detection of ileal involvement in intestinal follicular lymphoma patients

Iwamuroa, M., Takata, K., Hayashi, E., Kawano, S., Hiraoka, S., Kawahara, Y., Yoshino, T. & Okada, H., 2017, In : Acta medica Okayama. 71, 5, p. 391-398 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2016

Adalimumab monotherapy and a combination with azathioprine for Crohn's disease: A prospective, randomized trial

DIAMOND study group, 2016, In : Journal of Crohn's and Colitis. 10, 11, p. 1259-1266 8 p.

Research output: Contribution to journalArticle

68 Citations (Scopus)

A Novel Role of Spred2 in the Colonic Epithelial Cell Homeostasis and Inflammation

Takahashi, S., Yoshimura, T., Ohkura, T., Fujisawa, M., Fushimi, S., Ito, T., Itakura, J., Hiraoka, S., Okada, H., Yamamoto, K. & Matsukawa, A., Nov 21 2016, In : Scientific reports. 6, 37531.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Consecutive measurements by faecal immunochemical test in quiescent ulcerative colitis patients can detect clinical relapse

Hiraoka, S., Kato, J., Nakarai, A., Takashima, S., Inokuchi, T., Takei, D., Sugihara, Y., Takahara, M., Harada, K. & Okada, H., Jun 1 2016, In : Journal of Crohn's and Colitis. 10, 6, p. 687-694 8 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Fecal immunochemical test versus fecal calprotectin for prediction of mucosal healing in Crohn's Disease

Inokuchi, T., Kato, J., Hiraoka, S., Takashima, S., Nakarai, A., Takei, D., Sugihara, Y., Takahara, M., Kawano, S., Harada, K. & Okada, H., May 1 2016, In : Inflammatory bowel diseases. 22, 5, p. 1078-1085 8 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Lymphoid hyperplasia of the colon and its association with underlying allergic airway diseases

Iwamuro, M., Hiraoka, S., Okada, H., Kawai, Y., Miyabe, Y., Takata, K., Kawano, S. & Yamamoto, K., Feb 1 2016, In : International Journal of Colorectal Disease. 31, 2, p. 313-317 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Ulcerative colitis patients in clinical remission demonstrate correlations between fecal immunochemical test results, mucosal healing, and risk of relapse

Nakarai, A., Kato, J., Hiraoka, S., Takashima, S., Takei, D., Inokuchi, T., Sugihara, Y., Takahara, M., Harada, K. & Okada, H., Jun 7 2016, In : World journal of gastroenterology. 22, 21, p. 5079-5087 9 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2015
1 Citation (Scopus)
5 Citations (Scopus)

An open-label prospective randomized multicenter study of intensive versus weekly granulocyte and monocyte apheresis in active crohn's disease

Yoshimura, N., Yokoyama, Y., Matsuoka, K., Takahashi, H., Iwakiri, R., Yamamoto, T., Nakagawa, T., Fukuchi, T., Motoya, S., Kunisaki, R., Kato, S., Hirai, F., Ishiguro, Y., Tanida, S., Hiraoka, S., Mitsuyama, K., Ishihara, S., Tanaka, S., Otaka, M., Osada, T. & 7 others, Kagaya, T., Suzuki, Y., Nakase, H., Hanai, H., Watanabe, K., Kashiwagi, N. & Hibi, T., Nov 19 2015, In : BMC Gastroenterology. 15, 1, 163.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Clinical features of intestinal Behçet's disease associated with myelodysplastic syndrome and trisomy 8

Kawano, S., Hiraoka, S., Okada, H., Akita, M., Iwamuro, M. & Yamamoto, K., 2015, In : Acta medica Okayama. 69, 6, p. 365-369 5 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Evaluation of mucosal healing in ulcerative colitis by fecal calprotectin vs. fecal immunochemical test

Takashima, S., Kato, J., Hiraoka, S., Nakarai, A., Takei, D., Inokuchi, T., Sugihara, Y., Takahara, M., Harada, K., Okada, H., Tanaka, T. & Yamamoto, K., Jun 10 2015, In : American Journal of Gastroenterology. 110, 6, p. 873-880 8 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)

The earliest trough concentration predicts the dose of tacrolimus required for remission induction therapy in ulcerative colitis patients

Hiraoka, S., Kato, J., Moritou, Y., Takei, D., Inokuchi, T., Nakarai, A., Takahashi, S., Harada, K., Okada, H. & Yamamoto, K., Apr 29 2015, In : BMC Gastroenterology. 15, 1, 53.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2014

Long-term follow-up of ulcerative colitis patients treated on the basis of their cytomegalovirus antigen status

Inokuchi, T., Kato, J., Hiraoka, S., Suzuki, H., Nakarai, A., Hirakawa, T., Akita, M., Takahashi, S., Harada, K., Okada, H. & Yamamoto, K., 2014, In : World journal of gastroenterology. 20, 2, p. 509-517 9 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Prognosis of ulcerative colitis differs between patients with complete and partial mucosal healing, which can be predicted from the platelet count

Nakarai, A., Kato, J., Hiraoka, S., Inokuchi, T., Takei, D., Moritou, Y., Akita, M., Takahashi, S., Hori, K., Harada, K., Okada, H. & Yamamoto, K., Dec 28 2014, In : World journal of gastroenterology. 20, 48, p. 18367-18374 8 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)