Masafumi Koga

Summary

Publications

  1. doi request reprint Comparison of annual variability in HbA1c and glycated albumin in patients with type 1 vs. type 2 diabetes mellitus
    Masafumi Koga
    Department of Internal Medicine, Kawanishi City Hospital, 5 21 1 Higashi uneno, Kawanishi 666 0195, Japan
    J Diabetes Complications 27:211-3. 2013
  2. doi request reprint Serum glycated albumin, but not glycated haemoglobin, is low in relation to glycemia in hyperuricemic men
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo, 664 8533, Japan
    Acta Diabetol 47:173-7. 2010
  3. doi request reprint 1,5-Anhydroglucitol levels are low irrespective of plasma glucose levels in patients with chronic liver disease
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo, Japan
    Ann Clin Biochem 48:121-5. 2011
  4. doi request reprint Serum glycated albumin levels, but not glycated hemoglobin, is low in relation to glycemia in non-diabetic men with nonalcoholic fatty liver disease with high alanine aminotransferase levels
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo, Japan
    Clin Biochem 43:1023-5. 2010
  5. doi request reprint Habitual intake of dairy products influences serum 1,5-anhydroglucitol levels independently of plasma glucose
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Res Clin Pract 90:122-5. 2010
  6. doi request reprint Serum glycated albumin levels are influenced by smoking status, independent of plasma glucose levels
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo, 664 8533, Japan
    Acta Diabetol 46:141-4. 2009
  7. ncbi request reprint Profiles of atherosclerotic risk factors in gastrectomized men
    Jun Murai
    Department of Internal Medicine, Kinki Central Hospital, Itami, Japan
    Endocr J 58:657-62. 2011
  8. doi request reprint Usefulness of glycated albumin as an indicator of glycemic control status in patients with hemolytic anemia
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo 664 8533, Japan
    Clin Chim Acta 412:253-7. 2011
  9. pmc Glycated albumin and glycated hemoglobin are influenced differently by endogenous insulin secretion in patients with type 2 diabetes
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Care 33:270-2. 2010
  10. doi request reprint Glycated albumin levels are higher relative to HbA1c levels in people with autoimmune acute-onset type 1 diabetes mellitus than in people with type 2 diabetes mellitus at the time of diagnosis
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Res Clin Pract 94:e12-4. 2011

Collaborators

  • Toshiaki Hanafusa
  • Akihisa Imagawa
  • Tetsuro Kobayashi
  • Michio Otsuki
  • Toshiji Saibara
  • Tetsuya Yamamoto
  • Hiroyasu Ogawa
  • Jun Murai
  • Soji Kasayama
  • Masafumi Kurajoh
  • Yukihiro Bando
  • Hiroshi Saito
  • Kunihiko Hashimoto
  • Sumiko Soga
  • Chihiro Sumida
  • Hideji Nakamura
  • Daishy Toya
  • Nobuyoshi Tanaka
  • Zenta Tsutsumi
  • Shu Hei Nishiguchi
  • Keiko Aoki
  • Keiji Nakasho
  • Hirayuki Enomoto
  • Hideo Kanehara
  • Asako Yamamoto
  • Yuji Moriwaki
  • Hidenori Koyama
  • Kazuo Notsumata
  • Takuhito Shoji
  • Mikio Mukai
  • Soeko Matsumoto
  • Masako Waguri
  • Rieko Toyoda
  • Sanai Noguchi
  • Yasuhiko Morimoto
  • Shiro Imai
  • Kenshi Wasada
  • Tomio Fujita
  • Tomoaki Osugi

Detail Information

Publications23

  1. doi request reprint Comparison of annual variability in HbA1c and glycated albumin in patients with type 1 vs. type 2 diabetes mellitus
    Masafumi Koga
    Department of Internal Medicine, Kawanishi City Hospital, 5 21 1 Higashi uneno, Kawanishi 666 0195, Japan
    J Diabetes Complications 27:211-3. 2013
    ....
  2. doi request reprint Serum glycated albumin, but not glycated haemoglobin, is low in relation to glycemia in hyperuricemic men
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo, 664 8533, Japan
    Acta Diabetol 47:173-7. 2010
    ..Serum GA, but not HbA(1C), is set lower in relation to plasma glucose levels in hyperglycemic men. This may be caused by microinflammation associated with hyperuricemic state...
  3. doi request reprint 1,5-Anhydroglucitol levels are low irrespective of plasma glucose levels in patients with chronic liver disease
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo, Japan
    Ann Clin Biochem 48:121-5. 2011
    ..Serum 1,5-anhydroglucitol (1,5-AG) is a known marker reflecting recent glycaemic control. In this study, we examined serum 1,5-AG levels in chronic liver disease (CLD) patients with and without diabetes mellitus...
  4. doi request reprint Serum glycated albumin levels, but not glycated hemoglobin, is low in relation to glycemia in non-diabetic men with nonalcoholic fatty liver disease with high alanine aminotransferase levels
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo, Japan
    Clin Biochem 43:1023-5. 2010
    ..Because patients with nonalcoholic fatty liver disease with high alanine aminotransferase (ALT) levels are reported to show high levels of hs-CRP, the relationship between serum ALT and serum GA levels was investigated...
  5. doi request reprint Habitual intake of dairy products influences serum 1,5-anhydroglucitol levels independently of plasma glucose
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Res Clin Pract 90:122-5. 2010
    ..In conclusion, habitual intake of dairy products was associated with low serum 1,5-AG levels, independently of plasma glucose levels...
  6. doi request reprint Serum glycated albumin levels are influenced by smoking status, independent of plasma glucose levels
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo, 664 8533, Japan
    Acta Diabetol 46:141-4. 2009
    ..These findings suggest that the inflammation-induced acceleration of albumin metabolism may be involved in the mechanism by which smoking is associated with serum GA levels...
  7. ncbi request reprint Profiles of atherosclerotic risk factors in gastrectomized men
    Jun Murai
    Department of Internal Medicine, Kinki Central Hospital, Itami, Japan
    Endocr J 58:657-62. 2011
    ..Additionally, levels of more emerging risk factors, such as hsCRP and baPWV were not altered among gastrectomized men...
  8. doi request reprint Usefulness of glycated albumin as an indicator of glycemic control status in patients with hemolytic anemia
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo 664 8533, Japan
    Clin Chim Acta 412:253-7. 2011
    ..In the present study, we examined the usefulness of GA as an indicator of glycemic control status in patients with HA...
  9. pmc Glycated albumin and glycated hemoglobin are influenced differently by endogenous insulin secretion in patients with type 2 diabetes
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Care 33:270-2. 2010
    ..Glycated albumin (GA) relative to A1C is a useful marker of short-term glycemic control. We investigated whether endogenous insulin secretion in type 2 diabetes has different effects on GA and A1C levels...
  10. doi request reprint Glycated albumin levels are higher relative to HbA1c levels in people with autoimmune acute-onset type 1 diabetes mellitus than in people with type 2 diabetes mellitus at the time of diagnosis
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Diabetes Res Clin Pract 94:e12-4. 2011
    ..This difference might reflect speed of increase in plasma glucose after the onset of diabetes...
  11. ncbi request reprint The glycated albumin to HbA1c ratio is elevated in patients with fulminant type 1 diabetes mellitus with onset during pregnancy
    Masafumi Koga
    Department of Internal Medicine, Kawanishi City Hospital, Hyogo, Japan
    J Med Invest 60:41-5. 2013
    ..0 in all P-FT1DM patients, whereas it was < 3.0 in 8 of 10 P-T2DM patients and all NP-T2DM patients. The GA/HbA1c ratio was also elevated in P-FT1DM patients at the diagnosis compared with T2DM with or without pregnancy...
  12. doi request reprint Serum glycated albumin to haemoglobin A(1C) ratio can distinguish fulminant type 1 diabetes mellitus from type 2 diabetes mellitus
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo 664 8533, Japan
    Ann Clin Biochem 47:313-7. 2010
    ..This study investigated serum glycated albumin (GA), which reflects acute short-term changes in plasma glucose, as a new clinical index for FT1DM at disease onset...
  13. doi request reprint Influence of iron metabolism indices on glycated haemoglobin but not glycated albumin levels in premenopausal women
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo 664 8533, Japan
    Acta Diabetol 47:65-9. 2010
    ..In conclusions, iron metabolism indices influence HbA(1C) levels, but not serum GA levels, in premenopausal women...
  14. ncbi request reprint Serum dehydroepiandrosterone sulphate levels in patients with non-alcoholic fatty liver disease
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Japan
    Intern Med 50:1657-61. 2011
    ..In this study, we aimed to examine the clinical significance of serum DHEA sulfate (DHEAS) in patients with NAFLD...
  15. ncbi request reprint Clinical impact of glycated albumin as another glycemic control marker
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Japan
    Endocr J 57:751-62. 2010
    ....
  16. doi request reprint The glycated albumin to glycated haemoglobin ratio increases along with the fibrosis stage in non-alcoholic steatohepatitis
    Yukihiro Bando
    Department of Internal Medicine, Fukui Ken Saiseikai Hospital, Fukui 918 8503, Japan
    Ann Clin Biochem 49:387-90. 2012
    ..In this study, we aimed to investigate the clinical usefulness of measuring the G/H ratio for predicting the severity of liver fibrosis in patients with NASH...
  17. ncbi request reprint Negative association of obesity and its related chronic inflammation with serum glycated albumin but not glycated hemoglobin levels
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, and Department of Medicine, Osaka University Graduate School of Medicine, Japan
    Clin Chim Acta 378:48-52. 2007
    ..The aim of this study was to examine whether BMI and the obesity-related inflammatory marker plasma high-sensitivity C-reactive protein (hs-CRP) are independently associated with GA and HbA1c...
  18. ncbi request reprint Relationship between serum allantoin and urate in healthy subjects and effects of benzbromarone in gout patients
    Masafumi Kurajoh
    Division of Endocrinology and Metabolism, Department of Internal Medicine, Hyogo College of Medicine, Kinki Central Hospital, Japan
    Int J Clin Pharmacol Ther 50:265-71. 2012
    ..In addition, since uric acid has both pro- and antioxidant actions, a decrease in the serum concentration of uric acid may have an effect on the pro-oxidant-antioxidant balance...
  19. doi request reprint Serum 1,5-anhydroglucitol levels in patients with fulminant type 1 diabetes are lower than those in patients with type 2 diabetes
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Hyogo, Japan
    Clin Biochem 43:1265-7. 2010
    ..We investigated clinical relevance of serum 1,5-anhydroglucitol (1,5-AG) levels in fulminant type 1 diabetes mellitus (FT1DM) patients, because 1,5-AG is known to reflect short term glycemic control...
  20. doi request reprint CLD (chronic liver diseases)-HbA1C as a suitable indicator for estimation of mean plasma glucose in patients with chronic liver diseases
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Kuruma zuka 3 1, Itami, Hyogo 664 8533, Japan
    Diabetes Res Clin Pract 81:258-62. 2008
    ..883), while no significant correlation between CLD-HbA(1C) and ChE was noted. In conclusion, CLD-HbA(1C) has been found a superior chronic glycemic control marker than HbA(1C) or GA in diabetic patients with chronic liver diseases...
  21. pmc A1C but not serum glycated albumin is elevated because of iron deficiency in late pregnancy in diabetic women
    Kunihiko Hashimoto
    Department of Internal Medicine, Aizenbashi Hospital, Osaka, Japan
    Diabetes Care 33:509-11. 2010
    ..CONCLUSIONS A1C levels, but not serum glycated albumin levels, are elevated in late pregnancy because of iron deficiency in diabetic women. Serum glycated albumin may offer an adequate marker for glycemic control during pregnancy...
  22. ncbi request reprint Usefulness of glycated albumin for early detection of deterioration of glycemic control state after discharge from educational admission
    Jun Murai
    Department of Internal Medicine, Kinki Central Hospital, Itami 664 8533, Japan
    Endocr J 60:409-13. 2013
    ..1 ± 0.7% to 8.3 ± 0.6%. Subsequently, HbA1c increased significantly to 9.0 ± 0.8% together with GA. Thus, GA is useful for early detection of deterioration of glycemic control state after discharge from educational admission...
  23. ncbi request reprint Body mass index negatively influences glycated albumin, but not glycated hemoglobin, in diabetic patients
    Masafumi Koga
    Department of Internal Medicine, Kinki Central Hospital, Itami, Hyogo, Japan
    Endocr J 53:387-91. 2006
    ..Only BMI was negatively correlated with the ratio of GA to HbA 1c. These results clearly demonstrate that GA levels are negatively influenced by BMI in diabetic patients...