ORIGINAL
Observational study of the relationship between the use of real-time continuous glucose monitoring and glycemic control in patients with diabetes in Japan: the REALJ study

Masao Toyoda, Naoki Sakane, Akiko Suganuma, Masahito Ogura, Junnosuke Miura, Daisuke Tsuriya, Akinori Hayashi, Hideaki Sawaki, Shota Suzuki, Tatsuhiko Urakami, Yushi Hirota, Arata Itoh, Shu Meguro, Kenji Kamiuchi, Tomokazu Matsuda, Hitomi Nakayama, Yoshihiko Yuyama, Tomoyuki Kawamura, Atsuhito Tone, Ken Kato, Akira Kuroe, Akio Kuroda, Munehide Matsuhisa, Akira Shimada, Takashi Murata, The REALJ Study Group

https://doi.org/10.1507/endocrj.EJ26-0183
August 18, 2026
ORIGINAL
Clinical features of hereditary adrenocortical unresponsiveness to adrenocorticotropin (HAUA) in Japan: from a nationwide questionnaire based survey

Eri Tanimoto, Kenichi Kashimada, Bunzo Matsuura, Hideki Yamaguchi, Masafumi Kurajoh, Toshie Segawa, Kenji Ohba, Yuki Abe, Yasunori Wada, Junko Kanno, Yoichiro Oda, Toshihiro Tajima, Hirotaka Shibata, Tomonobu Hasegawa

https://doi.org/10.1507/endocrj.EJ26-0099
August 11, 2026
LETTER TO THE EDITOR
Beyond tumor control: skeletal morbidity in giant prolactinoma

Taner Dandinoğlu

https://doi.org/10.1507/endocrj.EJ26-0353
August 8, 2026
ORIGINAL
Microscopic characteristics of adult dyshormonogenetic goiter: attempt to histologically estimate subtypes

Mitsuyoshi Hirokawa, Hanna Deguchi-Horiuchi, Shuji Fukata, Miyoko Higuchi, Ayana Suzuki, Eijun Nishihara, Takahiko Kogai, Akira Hishinuma, Akira Miyauchi, Takashi Akamizu

https://doi.org/10.1507/endocrj.EJ25-0222
August 5, 2026
ORIGINAL
Elevated autoantibodies against dipeptidyl peptidase-4 are associated with poor prognosis in patients with type 2 diabetes

Takeshi Yagihashi, Takahide Hashimoto, Naoki Ohtake, Tokiko Okamoto, Bo-Shi Zhang, Yoichi Yoshida, Masaya Yamaga, Tomohiko Yoshida, Amika Kajiyama, Rikako Furukawa, Takaki Hiwasa, Minoru Takemoto

https://doi.org/10.1507/endocrj.EJ26-0170
July 22, 2026
NOTE
Real-world clinical outcomes of tirzepatide administration in older patients with type 2 diabetes, with a focus on the risk of hypoglycemia and weight loss-related parameters

Hiroya Kitsunai, Fumika Maruyama, Yukie Miyano, Tomoe Abe, Hiroyoshi Kurihara, Ken Tsuji, Atsuko Abiko, Yoshihiro Miyamoto, Reiko Homma, Akinobu Nakamura, Hiroshi Nomoto, The Hokkaido-TZP Study Group

https://doi.org/10.1507/endocrj.EJ26-0246
July 14, 2026
ORIGINAL
Gender distribution in membership, leadership, and conference participation in the Japanese Society for Hypothalamic and Pituitary Tumors

Naoko Inoshita, Noriko Makita, Takayuki Matsuo, Masaaki Taniguchi, Hidetaka Suga, Hidenori Fukuoka, Hiroshi Nishioka

https://doi.org/10.1507/endocrj.EJ26-0154
July 10, 2026
ORIGINAL
Real-world optimization of cutoff values for enzyme immunoassay-based plasma-free fractionated metanephrines for the diagnosis of pheochromocytoma and paraganglioma: a multicenter retrospective study

Masato Yonamine, Ryota Ishii, Katsutoshi Takahashi, Yuichi Aita, Yuki Murayama, Motohiro Sekiya, Koichi Ozaki, Jun Saito, Moe Horinaka, Akiyo Tanabe, Yuka Ohmachi, Masaaki Yamamoto, Hidenori Fukuoka, Rei Hirose, Kazuhiro Takekoshi

https://doi.org/10.1507/endocrj.EJ26-0101
July 8, 2026
CLINICAL PRACTICE GUIDELINE
Diagnostic criteria for adrenal overt Cushing syndrome: prepared jointly by the Japan Endocrine Society and the Health and Labour Sciences Research Grant (Research on Intractable Diseases) Research Group on Disorders of Adrenal Hormones

Takuyuki Katabami, Hirotaka Shibata, Akiyo Tanabe, Masakatsu Sone, Michio Otsuki, Yoshihiro Ogawa, Tomoatsu Mune, Takamasa Ichijo, Yuichi Yoshida, Takashi Yoneda, Kazuhiko Horiguchi, Katsutoshi Takahashi, Mitsuru Nishiyama, Fumitoshi Sato, Isao Kurihara, Makito Tanabe, Toshihiro Tajima, Tomonobu Hasegawa, Tomohiro Ishii

https://doi.org/10.1507/endocrj.EJ26-0077
July 7, 2026
ORIGINAL
Clinical characterization of Japanese children with Cushing’s disease

Mari Yamamoto, Yuri Mukoyama, Kentaro Kishi, Shun Moriguchi, Fumihiko Takizawa, Tetsushi Ogawa, Junko Ito, Susumu Yokoya, Hirokazu Fukuhara, Noriaki Fukuhara, Masahiko Tosaka, Hiroshi Nishioka, Shozo Yamada, Masakazu Mimaki, Tsuyoshi Isojima

https://doi.org/10.1507/endocrj.EJ26-0212
July 2, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Early diagnosis of capivasertib-associated severe hyperglycemia with diabetic ketosis diagnosed in routine clinical practice: a case report with review of literature

Masashi Yoshikawa, Keiichiro Takahashi, Satoshi Yoshino, Yutaka Watanuki, Aya Osaki, Hiroki Ito, Masaya Uehara, Keiko Tanabe, Sasagu Kurozumi, Shunichi Matsumoto, Kazuhiko Horiguchi, Eijiro Yamada

https://doi.org/10.1507/endocrj.EJ26-0035
July 1, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Teprotumumab-associated persistent unilateral hearing loss in dysthyroid optic neuropathy: a case report with review of the literature

Yuji Hiromatsu, Kumiko Suzuki, Shiho Watanabe, Takahiro Fukuyama, Narihito Tatsumoto, Satoe Nakamura, Yoko Sagara, Yuko Akehi, Eiji Kawasaki, Hiroki Kojima, Kimihiko Sakai

https://doi.org/10.1507/endocrj.EJ26-0064
July 1, 2026
ORIGINAL
Associations of stress hormones, autonomic function, and endothelial function in patients with diabetes

Takanobu Saheki, Keisuke Takahashi, Eri Harada, Takafumi Yoshimura, Toshihiro Kobayashi, Kensaku Fukunaga, Hitomi Imachi, Koji Murao

https://doi.org/10.1507/endocrj.EJ26-0067
June 27, 2026
REVIEW
Inter- and intratumoral heterogeneity of aldosterone-producing adenomas: recent advances and clinical implications

Masanori Murakami

https://doi.org/10.1507/endocrj.EJ26-0125
June 24, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Metachronous multiple insulinomas in oculo-facio-cardio-dental syndrome harboring a novel BCOR deletion: a case report with review of literature

Shinsuke Noso, Hiroki Miki, Yoshihisa Hiromine, Naru Babaya, Yasunori Taketomo, Sawa Yoshida, Katsuya Ami, Ippei Matsumoto, Norikazu Maeda

https://doi.org/10.1507/endocrj.EJ26-0090
June 20, 2026
ORIGINAL
Establishment of a prognostic score for distant recurrence in follicular thyroid carcinoma

Yasuhiro Ito, Masashi Yamamoto, Mitsuyoshi Hirokawa, Hiroo Masuoka, Minoru Kihara, Akihiro Miya, Akira Miyauchi, Takashi Akamizu

https://doi.org/10.1507/endocrj.EJ26-0184
June 13, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Recurrent Cushing’s disease due to postoperative seeding of tumor cells in the sphenoid sinus: a case report with review of the literature

Tatsuma Matsuda, Noriaki Fukuhara, Masahiko Tosaka, Kentaro Horiguchi, Yoshinori Higuchi, Hiroshi Nishioka

https://doi.org/10.1507/endocrj.EJ26-0008
June 9, 2026
ORIGINAL
The clinical significance of SIGLEC1 mRNA levels derived from peripheral leukocytes in autoimmune thyroid diseases and type 1 diabetes

Mami Gamo-Kawasaki, Shiori Kawai, Ayano Takei, Kazunori Fukuda, Mototaka Yamauchi, Kenji Hara, Takafumi Tsuchiya, Kohzo Takebayashi, Koshi Hashimoto

https://doi.org/10.1507/endocrj.EJ25-0639
June 2, 2026
ORIGINAL
Effect of social jetlag on metabolic syndrome varies by body mass index: evidence from Taiwan Biobank

Shih-Kai Kao, Kai-Hsuan Cheng, Jerry Cheng-Yen Lai, Shaw-Ji Chen , Meng-Ying Lu

https://doi.org/10.1507/endocrj.EJ26-0018
May 29, 2026
REVIEW
Intracrine androgen metabolism in the meibomian gland: regulation, circadian control, and implications in dry eye disease

Takahito Miyake, Masao Doi

https://doi.org/10.1507/endocrj.EJ26-0148
May 29, 2026
ORIGINAL
Telomere length in patients with non-functional adrenal incidentalomas

Nilufer Ozdemir, Seda Sabah Ozcan, Ayse Ece Turkmen, Sedat Can Guney, Zeliha Hekimsoy, Mehmet Korkmaz

https://doi.org/10.1507/endocrj.EJ26-0033
May 27, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Multimodal management of giant prolactinoma with extensive amyloid spherule deposition: a case report with review of the literature

Aysel Unver Ozkahraman, Merve Korkmaz Yilmaz, Huseyin Karatay, Sidar Bagbudar, Ebubekir Akpinar, Buruc Erkan, Mehmet Karagulle, Mesut Yilmaz, Mutlu Niyazoglu, Esra Hatipoglu

https://doi.org/10.1507/endocrj.EJ26-0079
May 27, 2026
ORIGINAL
Differentiating TRAb-positive painless thyroiditis from Graves’ disease using biochemical and ultrasound findings

Yoshiki Furumura, Mitsuru Ito, Itaru Monno, Keitaro Miyamura, Shuji Fukata, Eijun Nishihara, Mitsushige Nishikawa, Akira Miyauchi, Takashi Akamizu

https://doi.org/10.1507/endocrj.EJ26-0047
May 20, 2026
ORIGINAL
Indicators for predicting continuous insulin infusion therapy-related hypokalemia: multicenter retrospective cohort study

Yuichiro Iwamoto, Tomohiko Kimura, Masato Kubo, Yui Okamoto, Ryo Inaba, Takashi Itoh, Toshitomo Sugisaki, Kazunori Dan, Hideyuki Iwamoto, Yoshiro Fushimi, Junpei Sanada, Hayato Isobe, Fuminori Tatsumi, Yukiko Kimura, Fumiko Kawasaki, Masashi Shimoda, Shuhei Nakanishi, Kohei Kaku, Hideaki Kaneto

https://doi.org/10.1507/endocrj.EJ26-0061
May 16, 2026
ORIGINAL
Efficacy and safety of dabrafenib plus trametinib in BRAFV600E-mutated advanced thyroid carcinoma: Real world experience in 37 patients

Haruhiko Yamazaki, Nobuyasu Suganuma, Mei Kadoya, Katsuhiko Masudo, Ai Matsui, Aya Saito

https://doi.org/10.1507/endocrj.EJ25-0629
May 14, 2026
CASE REPORT WITH REVIEW OF LITERATURE
Anti–pituitary-specific transcription factor-1 hypophysitis developing after thymoma resection: a case report with review of literature

Hitomi Konishi, Yui Yamashita, Yuma Motomura, Shin Urai, Yumiko Sasai, Keiko Yamagami, Hironori Bando, Naotetsu Kanamoto

https://doi.org/10.1507/endocrj.EJ26-0108
May 12, 2026
ORIGINAL
Machine learning-based prediction of impaired arginine vasopressin secretion during hypertonic saline test

Satoshi Naito, Daisuke Hagiwara, Masaki Kitamura, Ryosei Ashida, Yohei Kawaguchi, Takashi Miyata, Tomoko Handa, Tomoko Kobayashi, Mariko Sugiyama, Takeshi Onoue, Shintaro Iwama, Hidetaka Suga, Ryoichi Banno, Hiroshi Arima

https://doi.org/10.1507/endocrj.EJ26-0094
 Featured Article  Vol 73 Issue 8 (August, 2026)
REVIEW
Soluble tumor necrosis factor receptors in diabetes: risk sensing and receptor-resolved targeting

Qi Zhu, Yu Liu, Chen Yang, Tie Li

https://doi.org/10.1507/endocrj.EJ26-0050
Vol 73 Issue 8 (August, 2026)
ORIGINAL
ZFP36-ferroptosis axis as a key renal protective pathway in diabetic kidney disease

Anni Li, Yuxuan Ye, Huimin Cao, Jiawei Hu, Min Shi, Juan Zhang, Yiyuan Zhang, Yuting Liu, Bixia Gu, Hong Zhang

https://doi.org/10.1507/endocrj.EJ25-0648
Vol 73 Issue 8 (August, 2026)
ORIGINAL
From cross-section to prognosis: risk factors for renal function deterioration in primary hyperparathyroidism

Takuma Yamoto, Masakazu Notsu, Keizo Kanasaki

https://doi.org/10.1507/endocrj.EJ25-0616
Vol 73 Issue 8 (August, 2026)
ORIGINAL
γ-Secretase inhibitor ameliorates thyroid autoimmune damage via blocking Notch1 signaling and reducing γδT17 cells in EAT mice

Jue Wang, Longfei Ding, Chengyan He, Hao Liu, Yiwen Li, Yujiao Zhu, Yue Li, Haibo Xue

https://doi.org/10.1507/endocrj.EJ25-0663
Vol 73 Issue 8 (August, 2026)
CASE REPORT WITH REVIEW OF LITERATURE
Long-term survival in MIRAGE syndrome: Insights into systemic manifestations and management with review of literature

Yuki Yamada, Hidehito Kondo, Masashi Nishida, Zenro Kizaki, Kanako Tanase-Nakao, Satoshi Narumi, Jun Mori

https://doi.org/10.1507/endocrj.EJ25-0656
Vol 73 Issue 8 (August, 2026)
CASE REPORT WITH REVIEW OF LITERATURE
Acanthosis nigricans as a diagnostic clue for familial partial lipodystrophy type 2: a case report with review of literature on Japanese cases

Takuya Kitamura, Toru Kusakabe, Yuki Ishihara, Tetsuya Tagami, Kazuwa Nakao

https://doi.org/10.1507/endocrj.EJ25-0487
Vol 73 Issue 8 (August, 2026)
CASE REPORT WITH REVIEW OF LITERATURE
Overlap syndrome between sarcoidosis and Sjögren’s disease presenting as hypopituitarism: case report and review of literature

Yuichiro Iwamoto, Noriko Yoshimura, Ayaka Harada, Yoshiro Fushimi, Yui Okamoto, Tomohiko Kimura, Masashi Shimoda, Shuhei Nakanishi, Yo Mizuta, Saeko Tsurui, Seiji Matsumoto, Yoshikazu Koike, Takehiro Nishimura, Hideaki Kaneto

https://doi.org/10.1507/endocrj.EJ26-0063
Vol 73 Issue 8 (August, 2026)

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Volume 73 (2026) Issue 8

EJ26-0094

Recommendation from the Editor

Arginine vasopressin deficiency (AVP-D) is an important cause of polyuria-polydipsia syndrome. Although highly informative, the hypertonic saline test (HST) places a considerable burden on patients. In this issue, Dr Satoshi Naito at Nagoya University and his colleagues developed an interpretable prediction model based on four laboratory variables obtained before the HST: urinary osmolality, serum sodium, plasma AVP, and blood urea nitrogen. In a cohort of 64 patients, the logistic regression model achieved an area under the receiver operating characteristic curve of 0.862 for predicting impaired AVP secretion during the HST. At an optimized rule-in threshold, the model achieved a positive predictive value of 100% (14/14) in the subgroup of 35 patients evaluated for suspected AVP-D, suggesting that the HST might be deferred in approximately 40% of these patients. Our editorial team particularly recommends this article because it presents a promising and patient-centered approach to streamlining the diagnostic evaluation of AVP-D.

Machine learning-based prediction of impaired arginine vasopressin secretion during hypertonic saline test

Satoshi Naito, Daisuke Hagiwara, Masaki Kitamura, Ryosei Ashida, Yohei Kawaguchi, Takashi Miyata, Tomoko Handa, Tomoko Kobayashi, Mariko Sugiyama, Takeshi Onoue, Shintaro Iwama, Hidetaka Suga, Ryoichi Banno, Hiroshi Arima

https://doi.org/10.1507/endocrj.EJ26-0094

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