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( Yoshitaka Kajimoto ) 한국지질동맥경화학회 ( 구 한국지질학회 ) 2002 韓國脂質學會誌 Vol.12 No.3
Oxidative stress is induced under diabetic conditions and causes various forms of tissue damage in patients with diabetes. Recently, pancreatic ß-cells have emerged as a putative target of oxidative stress-induced tissue damage and this seems to explain i
Diagnosing metabolic acidosis in chronic kidney disease: importance of blood pH and serum anion gap
Kaimori Jun-Ya,Sakaguchi Yusuke,Kajimoto Sachio,Asahina Yuta,Oka Tatsufumi,Hattori Koki,Doi Yohei,Isaka Yoshitaka 대한신장학회 2022 Kidney Research and Clinical Practice Vol.41 No.3
Metabolic acidosis is one of the most common complications of chronic kidney disease (CKD). It is associated with the progression of CKD, and many other functional impairments. Until recently, only serum bicarbonate levels have been used to evaluate acid-base changes in patients with reduced kidney function. However, recent emerging evidence suggests that nephrologists should reevaluate the clinical approach for diagnosing metabolic acidosis in patients with CKD based on two perspectives; pH and anion gap. Biochemistry and physiology textbooks clearly indicate that blood pH is the most important acid-base parameter for cellular function. Therefore, it is important to determine if the prognostic impact of hypobicarbonatemia varies according to pH level. A recent cohort study of CKD patients showed that venous pH modified the association between a low bicarbonate level and the progression of CKD. Furthermore, acidosis with a high anion gap has recently been recognized as an important prognostic factor, because veverimer, a nonabsorbable hydrochloride-binding polymer, has been shown to improve kidney function and decrease the anion gap. Acidosis with high anion gap frequently develops in later stages of CKD. Therefore, the anion gap is a time-varying factor and renal function (estimated glomerular filtration rate) is a time-dependent confounder for the anion gap and renal outcomes. Recent analyses using marginal structural models showed that acidosis with a high anion gap was associated with a high risk of CKD. Based on these observations, reconsideration of the clinical approach to diagnosing and treating metabolic acidosis in CKD may be warranted.
Yasunori Nakamura,Jun Sano,Kohji Ohki,Toshimasa Higuchi,Kotaro Aihara,Seiichi Mizuno,Osami Kajimoto,Satoshi Nakagawa,Yoshitaka Kajimoto 한국식품영양과학회 2005 Journal of medicinal food Vol.8 No.4
Casein hydrolysate, prepared with Aspergillus oryzaeprotease, contains angiotensin I-converting enzyme in-hibitory peptides, such as Val-Pro-Pro and Ile-Pro-Pro. We conducted a randomized, double-blind, placebo-controlled studyto evaluate the effect of casein hydrolysate on the blood pressure of 144 subjects with high-normal blood pressure (n . 104)and mild hypertension (n . 40). Subjects were randomly assigned to two groups for a 12-week intake period. In the test group,both systolic (SBP) and diastolic (DBP) blood pressure decreased significantly compared with the placebo group: SBP/DBPsignificantly decreased from 138.2. 6.5/84.4. 5.3 mm Hg at week 0 to 132.3. 7.3 (P. .001)/81.2. 4.8 mm Hg (P..001) at week 12. In the stratified analysis, the test product showed an antihypertensive effect in both the subject group withhigh-normal blood pressure and that with mild hypertension. No side effect was observed in any subjects in this study. Theseresults demonstrate that the casein hydrolysate, prepared with A. oryzaeprotease, produced a significant reduction in bloodpressure in a population of subjects with high-normal blood pressure or mild hypertension without an adverse event.