Ichiro Tatsuno

Affiliations

Department of Bacteriology, Nagoya City University Graduate School of Medical Science, Japan.

Publications (41)

Streptococcal Toxic Shock Syndrome Induced by Group A Streptococcus with the emm28 Genotype That Developed after a Uterine Cancer Test.

Internal medicine (Tokyo, Japan)

Avec: Yusuke Yamaba , Osamu Takakuwa , Chiaki Ida , Manami Saito , Daisuke Kawae , Misuzu Yoshihara , Eiji Kunii , Kenro Imaeda , Ichiro Tatsuno , Tadao Hasegawa , Kenji Akita

Prevention of Cardiovascular Events with Pitavastatin is Associated with Increased Serum Lipoprotein Lipase Mass Level: Subgroup Analysis of the TOHO-LIP.

Journal of atherosclerosis and thrombosis

Avec: Daiji Nagayama , Atsuhito Saiki , Yasuhiro Watanabe , Takashi Yamaguchi , Masahiro Ohira , Naoko Sato , Mizuho Kanayama , Masao Moroi , Yoh Miyashita , Kohji Shirai , Ichiro Tatsuno

Steroid metabolites for diagnosing and predicting clinicopathological features in cortisol-producing adrenocortical carcinoma.

BMC endocrine disorders

Avec: Sawako Suzuki , Tomoki Minamidate , Akina Shiga , Yutarou Ruike , Kazuki Ishiwata , Kumiko Naito , Akiko Ishida , Hanna Deguchi , Masanori Fujimoto , Hisashi Koide , Ichiro Tatsuno , Jun-Ichiro Ikeda , Yuto Yamazaki , Hironobu Sasano , Koutaro Yokote

A Case of Hashimoto's Thyroiditis with Multiple Drug Resistance and High Expression of Efflux Transporters.

The Journal of clinical endocrinology and metabolism

Avec: Tomohiko Yoshida , Akitoshi Nakayama , Ai Tamura , Seiichiro Higuchi , Ikki Sakuma , Hidekazu Nagano , Saulo Ja Felizola , Naoko Hashimoto , Minoru Takemoto , Ichiro Tatsuno , Hisashi Koide , Koutaro Yokote , Tomoaki Tanaka

High hemoglobin glycation index is associated with increased systemic arterial stiffness independent of hyperglycemia in real-world Japanese population: A cross-sectional study.

Diabetes & vascular disease research

Avec: Daiji Nagayama , Yasuhiro Watanabe , Takashi Yamaguchi , Atsuhito Saiki , Kohji Shirai , Ichiro Tatsuno

Fatty acid desaturase 2 is up-regulated by the treatment with statin through geranylgeranyl pyrophosphate-dependent Rho kinase pathway in HepG2 cells.

Scientific reports

Avec: Shou Tanaka , Noriko Ishihara , Sawako Suzuki , Yasuhiro Watanabe , Daiji Nagayama , Takashi Yamaguchi , Masahiro Ohira , Atsuhito Saiki , Tomoaki Tanaka , Ichiro Tatsuno

Study Protocol for the Effects of Formula Diet with Dapagliflozin on Metabolic Improvement and Body Composition in Type 2 Diabetes Mellitus.

Diabetes therapy : research, treatment and education of diabetes and related disorders

Avec: Yasuhiro Watanabe , Nobuichi Kuribayashi , Daigaku Uchida , Daisuke Suzuki , Mitsutoshi Kato , Daiji Nagayama , Hiroshi Ohashi , Masahiro Ohira , Atsuhito Saiki , Ichiro Tatsuno

Serum oxidative stress in patients with pulmonary

Heliyon

Avec: Hiroki Wakabayashi , Yasuo Matsuzawa , Sho Hayakawa , Tamako Irie , Hagino Rikitake , Ichiro Tatsuno

New Horizons of Arterial Stiffness Developed Using Cardio-Ankle Vascular Index (CAVI).

Journal of atherosclerosis and thrombosis

Avec: Atsuhito Saiki , Masahiro Ohira , Takashi Yamaguchi , Daiji Nagayama , Naomi Shimizu , Kohji Shirai , Ichiro Tatsuno

Correction to: Study Protocol for the Effects of Formula Diet with Dapagliflozin on Metabolic Improvement and Body Composition in Type 2 Diabetes Mellitus.

Diabetes therapy : research, treatment and education of diabetes and related disorders

Avec: Yasuhiro Watanabe , Nobuichi Kuribayashi , Daigaku Uchida , Daisuke Suzuki , Mitsutoshi Kato , Daiji Nagayama , Hiroshi Ohashi , Masahiro Ohira , Atsuhito Saiki , Ichiro Tatsuno

Metabolic surgery in treatment of obese Japanese patients with type 2 diabetes: a joint consensus statement from the Japanese Society for Treatment of Obesity, the Japan Diabetes Society, and the Japan Society for the Study of Obesity.

Diabetology international

Avec: Akira Sasaki , Koutaro Yokote , Takeshi Naitoh , Junji Fujikura , Karin Hayashi , Yushi Hirota , Nobuya Inagaki , Yasushi Ishigaki , Kazunori Kasama , Eri Kikkawa , Hidenori Koyama , Hiroaki Masuzaki , Takeshi Miyatsuka , Takehiro Nozaki , Wataru Ogawa , Masayuki Ohta , Shinichi Okazumi , Michio Shimabukuro , Iichiro Shimomura , Hitoshi Nishizawa , Atsuhito Saiki , Yosuke Seki , Nobuhiro Shojima , Motoyoshi Tsujino , Satoshi Ugi , Hiroaki Watada , Toshimasa Yamauchi , Takashi Yamaguchi , Kohjiro Ueki , Takashi Kadowaki , Ichiro Tatsuno , Auteur inconnu

Characteristics of Childhood Onset and Post-Puberty Onset Obesity and Weight Regain after Laparoscopic Sleeve Gastrectomy in Japanese Subjects: A Subgroup Analysis of J-SMART.

Obesity facts

Avec: Yasuhiro Watanabe , Takashi Yamaguchi , Sho Tanaka , Akira Sasaki , Takeshi Naitoh , Hisahiro Matsubara , Koutaro Yokote , Shinichi Okazumi , Satoshi Ugi , Hiroshi Yamamoto , Masayuki Ohta , Yasushi Ishigaki , Kazunori Kasama , Yosuke Seki , Motoyoshi Tsujino , Kohji Shirai , Yasuhiro Miyazaki , Takayuki Masaki , Daiji Nagayama , Atushito Saiki , Ichiro Tatsuno

General Phenotype of NADase Induction by CLI Treatment in

International journal of microbiology

Avec: Ichiro Tatsuno , Masanori Isaka , Tadao Hasegawa

Factors Associated with Relapse of Type 2 Diabetes Mellitus after Laparoscopic Sleeve Gastrectomy in Japanese Subjects: A Subgroup Analysis of J-SMART Study.

Obesity facts

Avec: Yasuhiro Watanabe , Takashi Yamaguchi , Daiji Nagayama , Sho Tanaka , Akira Sasaki , Takeshi Naitoh , Hisahiro Matsubara , Koutaro Yokote , Shinichi Okazumi , Satoshi Ugi , Hiroshi Yamamoto , Masayuki Ohta , Yasushi Ishigaki , Kazunori Kasama , Yosuke Seki , Motoyoshi Tsujino , Kohji Shirai , Yasuhiro Miyazaki , Takayuki Masaki , Atsuhito Saiki , Ichiro Tatsuno

Liver-Expressed Antimicrobial Peptide 2 Is a Hepatokine That Predicts Weight Loss and Complete Remission of Type 2 Diabetes Mellitus after Vertical Sleeve Gastrectomy in Japanese Individuals.

Obesity facts

Avec: Hiroki Nabekura , Md Nurul Islam , Hideyuki Sakoda , Takashi Yamaguchi , Atsuhito Saiki , Taiki Nabekura , Takashi Oshiro , Yuri Tanaka , Shinya Murayama , Weidong Zhang , Ichiro Tatsuno , Masamitsu Nakazato

Association of CovRS two-component regulatory system with NADase induction by Clindamycin treatment in Streptococcus pyogenes.

Japanese journal of infectious diseases

Avec: Ichiro Tatsuno , Masanori Isaka , Tadao Hasegawa

No medication prescription and residential distance from the hospital are important factors associated with nonsurgical weight-loss treatment discontinuance in Japanese patients with high-degree obesity: a retrospective study.

BMC health services research

Avec: Masahiro Ohira , Sayaka Tsuji , Yasuhiro Watanabe , Kazuki Abe , Shuhei Yamaoka , Shoko Nakamura , Rena Oka , Shou Tanaka , Naoyuki Kawagoe , Takashi Yamaguchi , Daiji Nagayama , Ichiro Tatsuno , Atsuhito Saiki

Marker Of Sepsis Severity Is Associated With The Variation In Cardio-Ankle Vascular Index (CAVI) During Sepsis Treatment.

Vascular health and risk management

Avec: Daiji Nagayama , Haruki Imamura , Kei Endo , Atsuhito Saiki , Yuta Sato , Takashi Yamaguchi , Yasuhiro Watanabe , Masahiro Ohira , Kohji Shirai , Ichiro Tatsuno

Prevalence of emm1 Streptococcus pyogenes having a novel type of genomic composition.

Microbiology and immunology

Avec: Ichiro Tatsuno , Masanori Isaka , Masakado Matsumoto , Tadao Hasegawa

Omega-3 polyunsaturated fatty acids focusing on eicosapentaenoic acid and docosahexaenoic acid in the prevention of cardiovascular diseases: a review of the state-of-the-art.

Expert review of clinical pharmacology

Avec: Yasuhiro Watanabe , Ichiro Tatsuno

Prevention of Cardiovascular Events with Omega-3 Polyunsaturated Fatty Acids and the Mechanism Involved.

Journal of atherosclerosis and thrombosis

Avec: Yasuhiro Watanabe , Ichiro Tatsuno

The Relationship between Serum Insulin-Like Growth Factor-1 Levels and Body Composition Changes after Sleeve Gastrectomy.

Obesity facts

Avec: Masahiro Ohira , Yasuhiro Watanabe , Takashi Yamaguchi , Hiroki Onda , Shuhei Yamaoka , Kazuki Abe , Shoko Nakamura , Shou Tanaka , Naoyuki Kawagoe , Taiki Nabekura , Atsuhito Saiki , Takashi Oshiro , Daiji Nagayama , Ichiro Tatsuno

Effect of Conventional Medical Therapy or Laparoscopic Sleeve Gastrectomy on Urinary Albumin in Japanese Subjects with Severe Obesity: An Observational Study.

Obesity facts

Avec: Yasuhiro Watanabe , Takashi Yamaguchi , Shuhei Yamaoka , Kazuki Abe , Hiroki Onda , Shoko Nakamura , Sho Tanaka , Takashi Oshiro , Masahiro Ohira , Daiji Nagayama , Naomi Shimizu , Ichiro Tatsuno , Atsuhito Saiki

Decreased Triglyceride and Increased Serum Lipoprotein Lipase Levels Are Correlated to Increased High-Density Lipoprotein-Cholesterol Levels after Laparoscopic Sleeve Gastrectomy.

Obesity facts

Avec: Masahiro Ohira , Yasuhiro Watanabe , Takashi Yamaguchi , Hiroki Onda , Shuhei Yamaoka , Kazuki Abe , Shoko Nakamura , Sho Tanaka , Naoyuki Kawagoe , Taiki Nabekura , Takashi Oshiro , Daiji Nagayama , Ichiro Tatsuno , Atsuhito Saiki

Streptococcus pyogenes TrxSR Two-Component System Regulates Biofilm Production in Acidic Environments.

Infection and immunity

Avec: Masanori Isaka , Akira Okamoto , Yutaka Miura , Ichiro Tatsuno , Jun-Ichi Maeyama , Tadao Hasegawa

Mechanism of transient photothermal inactivation of bacteria using a wavelength-tunable nanosecond pulsed laser.

Scientific reports

Avec: Ichiro Tatsuno , Yuna Niimi , Makoto Tomita , Hiroshi Terashima , Tadao Hasegawa , Takahiro Matsumoto

A randomized controlled trial of two diets enriched with protein or fat in patients with type 2 diabetes treated with dapagliflozin.

Scientific reports

Avec: Yasuhiro Watanabe , Daisuke Suzuki , Nobuichi Kuribayashi , Daigaku Uchida , Mitsutoshi Kato , Hiroshi Ohashi , Daiji Nagayama , Takashi Yamaguchi , Masahiro Ohira , Atsuhito Saiki , Ichiro Tatsuno

Background characteristics and diabetes remission after laparoscopic sleeve gastrectomy in Japanese patients with type 2 diabetes stratified by BMI: subgroup analysis of J-SMART.

Diabetology international

Avec: Atsuhito Saiki , Takashi Yamaguchi , Akira Sasaki , Takeshi Naitoh , Hisahiro Matsubara , Koutaro Yokote , Shinichi Okazumi , Satoshi Ugi , Hiroshi Yamamoto , Masayuki Ohta , Yasushi Ishigaki , Kazunori Kasama , Yosuke Seki , Motoyoshi Tsujino , Kohji Shirai , Yasuhiro Miyazaki , Takayuki Masaki , Daiji Nagayama , Ichiro Tatsuno

Lower airway microbiota in patients with clinically suspected

Heliyon

Avec: Kotaro Iwasaki , Yasuo Matsuzawa , Hiroki Wakabayashi , Moe Shioya , Sho Hayakawa , Ichiro Tatsuno

Clinical Usefulness of the Growth Hormone-Releasing Peptide-2 Test for Hypothalamic-Pituitary Disorder.

Journal of the Endocrine Society

Avec: Sawako Suzuki , Yutarou Ruike , Kazuki Ishiwata , Kumiko Naito , Katsushi Igarashi , Akiko Ishida , Masanori Fujimoto , Hisashi Koide , Kentaro Horiguchi , Ichiro Tatsuno , Koutaro Yokote

Verification of Safety and Efficacy of Sleeve Gastrectomy Based on National Registry by Japanese Society for Treatment of Obesity.

Journal of clinical medicine

Avec: Shinichi Okazumi , Takashi Oshiro , Akira Sasaki , Hisahiro Matsubara , Ichiro Tatsuno

Wavelength dependence of ultraviolet light inactivation for SARS-CoV-2 omicron variants.

Scientific reports

Avec: Nahoko Fujimoto , Katsuya Nagaoka , Ichiro Tatsuno , Hisashi Oishi , Makoto Tomita , Tadao Hasegawa , Yasuhito Tanaka , Takahiro Matsumoto

Laparoscopic Sleeve Gastrectomy Significantly Increases Serum Lipoprotein Lipase Level in Obese Patients.

Obesity facts

Avec: Masahiro Ohira , Takashi Yamaguchi , Atsuhito Saiki , Shoko Nakamura , Shou Tanaka , Rena Oka , Yasuhiro Watanabe , Yuta Sato , Takashi Oshiro , Takeyoshi Murano , Ichiro Tatsuno

Complete Genome Sequence of

Microbiology resource announcements

Avec: Ichiro Tatsuno , Masanori Isaka , Masakado Matsumoto , Naomi Nishio , Hideyuki Matsui , Tadao Hasegawa

Outcome of pitavastatin versus atorvastatin therapy in patients with hypercholesterolemia at high risk for atherosclerotic cardiovascular disease.

International journal of cardiology

Avec: Masao Moroi , Daiji Nagayama , Fumihiko Hara , Atsuhito Saiki , Kazuhiro Shimizu , Mao Takahashi , Naoko Sato , Teruo Shiba , Hideki Sugimoto , Toshiki Fujioka , Tatsuo Chiba , Kosuke Nishizawa , Shuki Usui , Yasuo Iwasaki , Ichiro Tatsuno , Kaoru Sugi , Junichi Yamasaki , Shigeo Yamamura , Kohji Shirai

Impact of Mental Health Background and Nutrition Intake on Medium-Term Weight Loss in Japanese Patients Undergoing Laparoscopic Sleeve Gastrectomy.

Obesity facts

Avec: Atsuhito Saiki , Rieko Kanai , Shoko Nakamura , Sho Tanaka , Rena Oka , Yasuhiro Watanabe , Takashi Yamaguchi , Masahiro Ohira , Takashi Oshiro , Karin Hayashi , Ichiro Tatsuno

Determinants of type 2 diabetes remission after bariatric surgery in obese Japanese patients: a retrospective cohort study.

Diabetology international

Avec: Masahiro Ohira , Yasuhiro Watanabe , Takashi Yamaguchi , Atsuhito Saiki , Shoko Nakamura , Shou Tanaka , Naomi Shimizu , Taiki Nabekura , Takashi Oshiro , Ichiro Tatsuno

Azacitidine decreases reactive oxygen species production in peripheral white blood cells: A case report.

World journal of clinical cases

Avec: Hidekazu Hasunuma , Naomi Shimizu , Hiromitsu Yokota , Ichiro Tatsuno

Association of urinary free cortisol with bone formation in patients with mild autonomous cortisol secretion.

Clinical endocrinology

Avec: Akiko Ishida , Katsushi Igarashi , Yutaro Ruike , Kazuki Ishiwata , Kumiko Naito , Satomi Kono , Hanna Deguchi , Masanori Fujimoto , Akina Shiga , Sawako Suzuki , Tomohiko Yoshida , Tomoaki Tanaka , Ichiro Tatsuno , Koutaro Yokote , Hisashi Koide

High presepsin concentrations in bile and its marked elevation in biliary tract diseases: A retrospective analysis.

Clinica chimica acta; international journal of clinical chemistry

Avec: Takashi Yamaguchi , Masahiro Ohira , Naoyuki Kawagoe , Shoko Nakamura , Sho Tanaka , Rena Oka , Yasuhiro Watanabe , Yuta Sato , Daiji Nagayama , Atsuhito Saiki , Yasuo Matsuzawa , Hideaki Bujo , Kensuke Terai , Nobuyuki Hiruta , Ichiro Tatsuno , Chiaki Nakaseko , Hidemasa Kikuchi , Katsuyoshi Matsuoka , Hiromitsu Yokota , Naomi Shimizu

A greater effect on clarithromycin resistance of mef(A)-associated msr(D) than mef(E)-associated msr(D) in Streptococcus pyogenes.

Microbiology and immunology

Avec: Ichiro Tatsuno , Masanori Isaka , Tadao Hasegawa

Réseau de co-auteurs

Atsuhito Saiki 21 collaborations

Yasuhiro Watanabe 19 collaborations

Takashi Yamaguchi 19 collaborations

Daiji Nagayama 17 collaborations

Masahiro Ohira 15 collaborations

Tadao Hasegawa 9 collaborations

Kohji Shirai 8 collaborations

Koutaro Yokote 8 collaborations

Takashi Oshiro 8 collaborations

Shoko Nakamura 8 collaborations

Sho Tanaka 6 collaborations

Masanori Isaka 6 collaborations

Shou Tanaka 5 collaborations

Naomi Shimizu 5 collaborations

Akira Sasaki 5 collaborations

Shinichi Okazumi 5 collaborations

Sawako Suzuki 4 collaborations

Hisashi Koide 4 collaborations

Takeshi Naitoh 4 collaborations

Yasushi Ishigaki 4 collaborations

Kazunori Kasama 4 collaborations

Masayuki Ohta 4 collaborations

Yosuke Seki 4 collaborations

Motoyoshi Tsujino 4 collaborations

Satoshi Ugi 4 collaborations

Hisahiro Matsubara 4 collaborations

Taiki Nabekura 4 collaborations

Kazuki Abe 4 collaborations

Shuhei Yamaoka 4 collaborations

Rena Oka 4 collaborations

Naoyuki Kawagoe 4 collaborations

Kazuki Ishiwata 3 collaborations

Kumiko Naito 3 collaborations

Akiko Ishida 3 collaborations

Masanori Fujimoto 3 collaborations

Tomoaki Tanaka 3 collaborations

Nobuichi Kuribayashi 3 collaborations

Daigaku Uchida 3 collaborations

Daisuke Suzuki 3 collaborations

Mitsutoshi Kato 3 collaborations

Hiroshi Ohashi 3 collaborations

Yasuo Matsuzawa 3 collaborations

Hiroshi Yamamoto 3 collaborations

Yasuhiro Miyazaki 3 collaborations

Takayuki Masaki 3 collaborations

Yuta Sato 3 collaborations

Hiroki Onda 3 collaborations

Naoko Sato 2 collaborations

Masao Moroi 2 collaborations

Akina Shiga 2 collaborations

Yutarou Ruike 2 collaborations

Hanna Deguchi 2 collaborations

Tomohiko Yoshida 2 collaborations

Hiroki Wakabayashi 2 collaborations

Sho Hayakawa 2 collaborations

Karin Hayashi 2 collaborations

Masakado Matsumoto 2 collaborations

Makoto Tomita 2 collaborations

Takahiro Matsumoto 2 collaborations

Katsushi Igarashi 2 collaborations

Hiromitsu Yokota 2 collaborations

Yusuke Yamaba 1 collaboration

Osamu Takakuwa 1 collaboration

Chiaki Ida 1 collaboration

Manami Saito 1 collaboration

Daisuke Kawae 1 collaboration

Misuzu Yoshihara 1 collaboration

Eiji Kunii 1 collaboration

Kenro Imaeda 1 collaboration

Kenji Akita 1 collaboration

Mizuho Kanayama 1 collaboration

Yoh Miyashita 1 collaboration

Tomoki Minamidate 1 collaboration

Jun-Ichiro Ikeda 1 collaboration

Yuto Yamazaki 1 collaboration

Hironobu Sasano 1 collaboration

Akitoshi Nakayama 1 collaboration

Ai Tamura 1 collaboration

Seiichiro Higuchi 1 collaboration

Ikki Sakuma 1 collaboration

Hidekazu Nagano 1 collaboration

Saulo Ja Felizola 1 collaboration

Naoko Hashimoto 1 collaboration

Minoru Takemoto 1 collaboration

Noriko Ishihara 1 collaboration

Tamako Irie 1 collaboration

Hagino Rikitake 1 collaboration

Junji Fujikura 1 collaboration

Yushi Hirota 1 collaboration

Nobuya Inagaki 1 collaboration

Eri Kikkawa 1 collaboration

Hidenori Koyama 1 collaboration

Hiroaki Masuzaki 1 collaboration

Takeshi Miyatsuka 1 collaboration

Takehiro Nozaki 1 collaboration

Wataru Ogawa 1 collaboration

Michio Shimabukuro 1 collaboration

Iichiro Shimomura 1 collaboration

Hitoshi Nishizawa 1 collaboration

Nobuhiro Shojima 1 collaboration

Hiroaki Watada 1 collaboration

Toshimasa Yamauchi 1 collaboration

Kohjiro Ueki 1 collaboration

Takashi Kadowaki 1 collaboration

None None 1 collaboration

Atushito Saiki 1 collaboration

Hiroki Nabekura 1 collaboration

Md Nurul Islam 1 collaboration

Hideyuki Sakoda 1 collaboration

Yuri Tanaka 1 collaboration

Shinya Murayama 1 collaboration

Weidong Zhang 1 collaboration

Masamitsu Nakazato 1 collaboration

Sayaka Tsuji 1 collaboration

Haruki Imamura 1 collaboration

Kei Endo 1 collaboration

Akira Okamoto 1 collaboration

Yutaka Miura 1 collaboration

Jun-Ichi Maeyama 1 collaboration

Yuna Niimi 1 collaboration

Hiroshi Terashima 1 collaboration

Kotaro Iwasaki 1 collaboration

Moe Shioya 1 collaboration

Kentaro Horiguchi 1 collaboration

Nahoko Fujimoto 1 collaboration

Katsuya Nagaoka 1 collaboration

Hisashi Oishi 1 collaboration

Yasuhito Tanaka 1 collaboration

Takeyoshi Murano 1 collaboration

Naomi Nishio 1 collaboration

Hideyuki Matsui 1 collaboration

Fumihiko Hara 1 collaboration

Kazuhiro Shimizu 1 collaboration

Mao Takahashi 1 collaboration

Teruo Shiba 1 collaboration

Hideki Sugimoto 1 collaboration

Toshiki Fujioka 1 collaboration

Tatsuo Chiba 1 collaboration

Kosuke Nishizawa 1 collaboration

Shuki Usui 1 collaboration

Yasuo Iwasaki 1 collaboration

Kaoru Sugi 1 collaboration

Junichi Yamasaki 1 collaboration

Shigeo Yamamura 1 collaboration

Rieko Kanai 1 collaboration

Hidekazu Hasunuma 1 collaboration

Yutaro Ruike 1 collaboration

Satomi Kono 1 collaboration

Hideaki Bujo 1 collaboration

Kensuke Terai 1 collaboration

Nobuyuki Hiruta 1 collaboration

Chiaki Nakaseko 1 collaboration

Hidemasa Kikuchi 1 collaboration

Katsuyoshi Matsuoka 1 collaboration