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2. Repeated apheresis donations cause important iron deficiency in male Japanese donors.

Author

Odajima, Takeshi, Tsuno, Nelson H., Iwasaki, Junko, Matsuzaki, Koji, Ishimaru, Fumihiko, Okubo, Rie, Murakami, Junko, Kitsukawa, Kaori, Ikuta, Katsuya, Muroi, Kazuo, Satake, Masahiro, and Kino, Shuichi

Subjects
*HEMAPHERESIS, *IRON deficiency, *DIETARY supplements, *BLOOD flow, *PLASMAPHERESIS
Abstract

Background and Objectives: In Japan, apheresis donation of plasma is allowed to a maximum of 24 times a year, and plateletpheresis are counted as two plasmapheresis donations. Diversion of the initial blood flow is conducted for all donations, and additionally, blood remaining in apheresis machine circuit is lost. Here, we aimed to investigate on the health impact of frequent apheresis donations, as measured by the serum ferritin (sFer). Materials and Methods: A total of 538 male apheresis donors and 538 age‐matched whole blood (WB) donors, who gave informed consent to join the study, were enrolled. sFer were compared, according to age. Another group of 19 apheresis donors were followed during four consecutive donations. Results: About half (48%) of repeat male apheresis donors had iron deficiency (sFer < 26 ng/mL), compared with lower rates (13.9%) among male WB donors. It was evident in all age groups, except for teenagers, possibly because of the lower number of donations. Follow‐up of the 19 donors for 4 months revealed a progressive decrease in sFer. Conclusion: Blood remaining in the apheresis machine circuit and diversion of the initial blood flow have been implicated in iron deficiency for many years. Taking the present results, the manufacturer of apheresis equipment was requested to improve it to allow rinseback of the remaining blood, which was achieved only for plateletpheresis. Until further improvement, plasmapheresis frequency was reduced to 12 times a year. Additional measures, such as oral supplementation of iron, need to be considered. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Iron deficiency among Japanese whole‐blood donors measured by serum ferritin.

Author

Odajima, Takeshi, Tsuno, Nelson H., Ishimaru, Fumihiko, Okubo, Rie, Murakami, Junko, Kitsukawa, Kaori, Ikuta, Katsuya, Matsuzaki, Koji, Muroi, Kazuo, Satake, Masahiro, and Kino, Shuichi

Subjects
*IRON deficiency, *IRON in the body, *AGE groups, *FERRITIN, *BLOOD volume
Abstract

Background and Objectives: A more restrictive blood donation criterion has been applied in Japan, with a maximum volume of whole blood (WB) donation of 400 mL, allowing twice a year for female donors and thrice a year for male donors. However, iron deficiency was as high as 20.5% among female donors prior to donation, increasing to 37.7% after blood donation. More than 20 years have passed since then, so we set out to investigate the present situation. Materials and Methods: A total of 2659 (male/female: 1496/1163) donors of 400 mL WB who gave informed consent to join the study were enrolled. Serum ferritin (sFer) of first‐time/reactivated (FT/RA) donors were compared with those of repeat donors, according to gender and age; those who returned for subsequent donations during the study period were also followed up. Results: About one‐third of FT/RA female donors had iron deficiency, possibly reflecting its high incidence among the general population. Interestingly, although sFer levels were low among pre‐menopausal FT/RA female donors, these values were not much different in repeat donors, whereas significant differences were observed between FT/RA and repeat donors among post‐menopausal females and in most age groups among males. As expected, donors with a normal initial sFer (≥26 ng/mL) recovered faster than those with a low initial sFer. Conclusion: Female donors, especially, have iron deficiency even before donation, and the rate increased compared to what was found previously. Measures to prevent iron deficiency of blood donors is required, and studies are going on in Japan. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Insights into the diversity of blood donation practice across Asia: How blood collection agencies adapt donor criteria and processes to their population

Author

Fung, Yoke‐Lin, primary, Alcantara, Ramir Moreno, additional, Cavalli, Leonardo Brereton, additional, Chen, Jen‐Wei, additional, Chen, Yun‐Yuan, additional, Donkin, Rebecca, additional, Kupatawintu, Pawinee, additional, Kwon, So‐Yong, additional, Lee, Cheuk‐Kwong, additional, Nadarajan, Veera Sekaran, additional, Namjil, Erdenebayar, additional, Bat, Solongo, additional, Odajima, Takeshi, additional, Sachdev, Suchet, additional, Siswishanto, Rukmono, additional, Tadsomboon, Sahit, additional, Sharma, Ratti Ram, additional, Triyono, Teguh, additional, and Tsuno, Nelson‐Hirokazu, additional

Published
2023
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8. Universal nucleic acid donor screening revealed epidemiological features of hepatitis E and prevented transfusion‐transmitted infection in Japan.

Author

Tanaka, Ami, Matsubayashi, Keiji, Odajima, Takeshi, Sakata, Hidekatsu, Iida, Juri, Kai, Kazuhiro, Goto, Naoko, and Satake, Masahiro

Subjects
HEPATITIS E, NUCLEIC acid amplification techniques, NUCLEIC acids, HEPATITIS E virus, MEDICAL screening
Abstract

Background: More than 45 cases of transfusion‐transmitted hepatitis E virus infection (TT‐HEV) have been reported in Japan. Therefore, in 2020, universal individual donation nucleic acid amplification testing (ID‐NAT) was implemented for HEV. Study Design and Methods: We characterized HEV NAT‐positive blood donors. The number of new HEV infections and the asymptomatic infection rate were estimated using the HEV NAT‐positive rate. HEV RNA quantitation, phylogenetic analysis, and antibody tests were performed, and the residual risk of TT‐HEV was assessed based on the lookback study results. Results: A total of 5,075,100 blood donations were screened with ID‐NAT during the first year of implementation, among which 2804 (0.055%; males: 0.060%, females: 0.043%) were NAT‐positive with regional differences. Approximately 270,000 new HEV infection cases were estimated to occur annually in Japan, with an asymptomatic infection rate of 99.9%. The median HEV RNA concentration, excluding cases below the limit of quantification, was 205 IU/mL. Among the 1113 cases where the genotype could be determined, HEV‐3 and HEV‐4 accounted for 98.8% (1100) and 1.2% (13), respectively. The maximum duration of HEV viremia, including the pre‐ and post‐ID‐NAT window periods, was estimated to be 88.2 days. Within the 3 years since ID‐NAT implementation, no confirmed cases of breakthrough TT‐HEV were observed. Discussion: Multiple indigenous HEV strains are prevalent in Japan, infecting a significant number of individuals. However, since the implementation of ID‐NAT, TT‐HEV has been prevented due to the test's high sensitivity. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Data from SLAMF3-Mediated Signaling via ERK Pathway Activation Promotes Aggressive Phenotypic Behaviors in Multiple Myeloma

Author

Ishibashi, Mariko, primary, Takahashi, Risa, primary, Tsubota, Asako, primary, Sasaki, Makoto, primary, Handa, Hiroshi, primary, Imai, Yoichi, primary, Tanaka, Norina, primary, Tsukune, Yutaka, primary, Tanosaki, Sakae, primary, Ito, Shigeki, primary, Asayama, Toshio, primary, Sunakawa, Mika, primary, Kaito, Yuta, primary, Kuribayashi-Hamada, Yasuko, primary, Onodera, Asaka, primary, Moriya, Keiichi, primary, Komatsu, Norio, primary, Tanaka, Junji, primary, Odajima, Takeshi, primary, Sugimori, Hiroki, primary, Inokuchi, Koiti, primary, and Tamura, Hideto, primary

Published
2023
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10. Supplementary Tables S1 to S5 and Supplemental Figures 1 to 15 from SLAMF3-Mediated Signaling via ERK Pathway Activation Promotes Aggressive Phenotypic Behaviors in Multiple Myeloma

Author

Ishibashi, Mariko, primary, Takahashi, Risa, primary, Tsubota, Asako, primary, Sasaki, Makoto, primary, Handa, Hiroshi, primary, Imai, Yoichi, primary, Tanaka, Norina, primary, Tsukune, Yutaka, primary, Tanosaki, Sakae, primary, Ito, Shigeki, primary, Asayama, Toshio, primary, Sunakawa, Mika, primary, Kaito, Yuta, primary, Kuribayashi-Hamada, Yasuko, primary, Onodera, Asaka, primary, Moriya, Keiichi, primary, Komatsu, Norio, primary, Tanaka, Junji, primary, Odajima, Takeshi, primary, Sugimori, Hiroki, primary, Inokuchi, Koiti, primary, and Tamura, Hideto, primary

Published
2023
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11. Incidence and clinical background of hepatitis B virus reactivation in multiple myeloma in novel agents’ era

Author

Tsukune, Yutaka, Sasaki, Makoto, Odajima, Takeshi, Isoda, Atsushi, Matsumoto, Morio, Koike, Michiaki, Tamura, Hideto, Moriya, Keiichi, Ito, Shigeki, Asahi, Maki, Imai, Yoichi, Tanaka, Junji, Handa, Hiroshi, Koiso, Hiromi, Tanosaki, Sakae, Hua, Jian, Hagihara, Masao, Yahata, Yuriko, Suzuki, Satoko, Watanabe, Sumio, Sugimori, Hiroki, and Komatsu, Norio

Published
2016
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13. Incidence and risk factors of hepatitis B virus reactivation in patients with multiple myeloma in an era with novel agents: a nationwide retrospective study in Japan

Author

Tsukune, Yutaka, Sasaki, Makoto, Odajima, Takeshi, Sunami, Kazutaka, Takei, Tomomi, Moriuchi, Yukiyoshi, Iino, Masaki, Isoda, Atsushi, Nakaya, Aya, Muta, Tsuyoshi, Miyake, Takaaki, Miyazaki, Koji, Shimizu, Takayuki, Nakajima, Kei, Igarashi, Aiko, Nagafuji, Koji, Kurihara, Taro, Aoyama, Tomonori, Sugimori, Hiroki, and Komatsu, Norio

Published
2017
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15. Diversity of Blood Donors and Donation Practices Across Asia: A Cross-Sectional Study of 10 Blood Collection Agencies

Author

Fung, Yoke-Lin, primary, Alcantara, Ramir M., additional, Cavalli, Leonardo Brereton, additional, Chen, Jen-Wei, additional, Chen, Yun-Yuan, additional, Donkin, Rebecca, additional, Kupatawintu, Pawinee, additional, Kwon, So-Yong, additional, Lee, Cheuk-Kwong, additional, Nadarajan, Veera Sekaran, additional, Namjil, Erdenebayar, additional, Bat, Solongo, additional, Odajima, Takeshi, additional, Sachdev, Suchet, additional, Siswishanto, Rukmono, additional, Tadsomboon, Sahit, additional, SHARMA, RATTI RAM, additional, Triyono, Teguh, additional, and Tsuno, Nelson-Hirokazu, additional

Published
2022
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16. Combined impact of HLA-allele matching and the CD34-positive cell dose on optimal unit selection for single-unit cord blood transplantation in adults

Author

Yabe, Toshio, primary, Satake, Masahiro, additional, Odajima, Takeshi, additional, Watanabe-Okochi, Naoko, additional, Azuma, Fumihiro, additional, Kashiwase, Koichi, additional, Matsumoto, Kayoko, additional, Orihara, Takeshi, additional, Yabe, Hiromasa, additional, Kato, Shunichi, additional, Kato, Koji, additional, Kai, Shunro, additional, Mori, Tetsuo, additional, Morishima, Satoko, additional, Takanashi, Minoko, additional, Nakajima, Kazunori, additional, Murata, Makoto, additional, and Morishima, Yasuo, additional

Published
2021
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19. SLAMF3-Mediated Signaling via ERK Pathway Activation Promotes Aggressive Phenotypic Behaviors in Multiple Myeloma

Author

Ishibashi, Mariko, primary, Takahashi, Risa, additional, Tsubota, Asako, additional, Sasaki, Makoto, additional, Handa, Hiroshi, additional, Imai, Yoichi, additional, Tanaka, Norina, additional, Tsukune, Yutaka, additional, Tanosaki, Sakae, additional, Ito, Shigeki, additional, Asayama, Toshio, additional, Sunakawa, Mika, additional, Kaito, Yuta, additional, Kuribayashi-Hamada, Yasuko, additional, Onodera, Asaka, additional, Moriya, Keiichi, additional, Komatsu, Norio, additional, Tanaka, Junji, additional, Odajima, Takeshi, additional, Sugimori, Hiroki, additional, Inokuchi, Koiti, additional, and Tamura, Hideto, additional

Published
2020
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20. A New Prognostic Index for Waldenström Macroglobulinemia Based on a Multicenter Retrospective Study of the Japanese Society of Myeloma

Author

Saito, Akio, primary, Isoda, Atsushi, additional, Odajima, Takeshi, additional, Itagaki, Mitsuhiro, additional, Yamamoto, Go, additional, Hagiwara, Shotaro, additional, Ohno, Tatsuharu, additional, Fujimoto, Ayumi, additional, Sekiguchi, Naohiro, additional, Sunami, Kazutaka, additional, Yokohama, Akihiko, additional, Kurokawa, Mineo, additional, Tsukune, Yutaka, additional, Nakazawa, Hideyuki, additional, Takamatsu, Hiroyuki, additional, Yagi, Hideo, additional, Fuchida, Shin-Ichi, additional, Ito, Shigeki, additional, Harazaki, Yoriko, additional, Watanabe, Reiko, additional, Koike, Michiaki, additional, Miyazaki, Kanji, additional, Suzuki, Kazuhito, additional, Tamura, Hideto, additional, Kohara, Takae, additional, Ozaki, Shuji, additional, Nakamura, Nobuhiko, additional, Nakamura, Yuichi, additional, Wakayama, Toshio, additional, Sugimori, Hiroki, additional, and Murakami, Hirokazu, additional

Published
2018
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21. Clinical impact of serum soluble SLAMF7 in multiple myeloma

Author

Ishibashi, Mariko, primary, Soeda, Saori, additional, Sasaki, Makoto, additional, Handa, Hiroshi, additional, Imai, Yoichi, additional, Tanaka, Norina, additional, Tanosaki, Sakae, additional, Ito, Shigeki, additional, Odajima, Takeshi, additional, Sugimori, Hiroki, additional, Asayama, Toshio, additional, Sunakawa, Mika, additional, Kaito, Yuta, additional, Kinoshita, Ryosuke, additional, Kuribayashi, Yasuko, additional, Onodera, Asaka, additional, Moriya, Keiichi, additional, Tanaka, Junji, additional, Tsukune, Yutaka, additional, Komatsu, Norio, additional, Inokuchi, Koiti, additional, and Tamura, Hideto, additional

Published
2018
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23. Incidence and risk factors of hepatitis B virus reactivation in patients with multiple myeloma in an era with novel agents: a nationwide retrospective study in Japan

Author

Tsukune Yutaka, Sasaki Makoto, Odajima Takeshi, Sunami Kazutaka, Takei Tomomi, Moriuchi Yukiyoshi, Iino Masaki, Isoda Atsushi, Nakaya Aya, Muta Tsuyoshi, Miyake Takaaki, Miyazaki Koji, Shimizu Takayuki, Nakajima Kei, Igarashi Aiko, Nagafuji Koji, Kurihara Taro, Aoyama Tomonori, Sugimori Hiroki, Komatsu Norio, Tsukune Yutaka, Sasaki Makoto, Odajima Takeshi, Sunami Kazutaka, Takei Tomomi, Moriuchi Yukiyoshi, Iino Masaki, Isoda Atsushi, Nakaya Aya, Muta Tsuyoshi, Miyake Takaaki, Miyazaki Koji, Shimizu Takayuki, Nakajima Kei, Igarashi Aiko, Nagafuji Koji, Kurihara Taro, Aoyama Tomonori, Sugimori Hiroki, and Komatsu Norio

Published
2017

48. Japanese Journal of Oral Biology

Author

Odajima, Takeshi, primary, Onishi, Mihoko, additional, Sato, Naoko, additional, Ichida, Tokuro, additional, Yuki, Shigeyuki, additional, and Takamatsu, Takatsune, additional

Published
1983
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