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Biomedical subjects

M Kano

Publications and source records attributed to M Kano.

310 records · Page 18Linked to original sources

Plasma exchange and low density lipoprotein apheresis in Watanabe heritable hyperlipidemic rabbits.

Comparison of the effects of plasma exchange using lipoprotein-deficient plasma with those of LDL apheresis using a dextran sulphate column was undertaken in two groups of Watanabe heritable hyperlipidemic rabbits pre-labelled with 3H-cholesterol. Total and HDL cholesterol were reduced more by plasma exchange but HDL cholesterol rebounded higher after LDL apheresis; rises in HDL cholesterol correlated with preceding decreases in both HDL and total cholesterol. An increase in the specific activity of HDL cholesterol occurred on the day after each procedure, being more marked after plasma exchange, and was accompanied by a decrease in the cholesterol/phospholipid ratio of HDL. These results suggest that an influx of extravascular HDL into plasma occurred after both procedures, resulting in mobilization of tissue cholesterol.

Animals↗

ELISA determination of serum hyocholic acid concentrations in humans and their possible clinical significance.

BACKGROUND/AIMS: Hyocholic acid (HCA), a bile acid isolated from pigs, has a different structure from the predominant bile acids from humans. METHODOLOGY: We prepared an antiserum to HCA in rabbits and developed an enzyme-linked immunosorbent assay (ELISA), which we used to measure serum HCA in healthy subjects and patients with a variety of gastrointestinal and non-gastrointestinal diseases. RESULTS: Patients with hepatic cirrhosis had a mean HCA concentration that was 120-fold greater than that in healthy subjects. Markedly elevated HCA levels were also present in patients with primary hepatoma or pancreatic cancer but not in patients with cancer of the breast, bile duct, duodenum, or stomach. CONCLUSIONS: If these results are confirmed by further study, HCA measurement may prove clinically useful.

Adult↗

Tosufloxacin in the treatment of nongonococcal urethritis, including Chlamydia trachomatis.

Sixty-three patients with nongonococcal urethritis were enrolled in an open, comparative study and assigned to 14 days of treatment with tosufloxacin 150 mg orally three times daily or doxycycline 100 mg orally twice daily. Chlamydia trachomatis was detected in 27 (42.9%) of the 63 patients: 13 (43.3%) of the 30 tosufloxacin-treated patients and 14 (42.4%) of the 33 doxycycline-treated patients. The clinical response between the two treatment groups was compared 7, 14, and 21 days after initiation of therapy. Clinical response to tosufloxacin was as good as that seen with doxycycline at the three follow-up visits. All C trachomatis-positive patients at baseline tested negative in both treatment groups at the three follow-up visits. Adverse reactions were observed in two patients treated with doxycycline. Although the number of study patients was small and the follow-up period short, these results indicate that tosufloxacin and doxycycline are equally effective in the treatment of nongonococcal urethritis.

Adolescent↗

[Indications for percutaneous transvenous mitral commissurotomy: evaluation according to the Sellors classification].

Fifty-eight consecutive patients underwent percutaneous transvenous mitral commissurotomy (PTMC) for mitral stenosis from August 1987 to June 1990. Patients were divided by echocardiographic characteristics of the mitral valve according to the Sellors classification into three groups: group 1 (mobile cusps, 20 patients), group 2 (thickened cusps, 34 patients), group 3 (rigid cusps, 4 patients). Immediately after PTMC, the mitral valve area increased significantly from 1.41 +/- 0.37 to 2.07 +/- 0.38 cm2 (p < 0.01) in group 1 and from 1.09 +/- 0.21 to 1.64 +/- 0.25 cm2 (p < 0.01) in group 2. The mitral valve area did not increase significantly in group 3 (from 0.82 +/- 0.27 to 1.10 +/- 0.22 cm2). Mitral regurgitation developed or increased in severity in four patients (100%) in group 3 (p < 0.01 vs group 1, 20% and group 2, 21%). The symptomatic improvement was 0% for group 3 (p < 0.01 vs group 1, 90% and group 2, 91%). At follow-up period (mean 24.6 months), symptomatic improvement was maintained in 44 patients (76%) of the total patient population. The mitral valve area was maintained well in group 1 and group 2, but three patients in group 2 showed recurrence of symptoms due to valvular restenosis. PTMC is an effective nonsurgical treatment for patients with mobile or with thickened cusps. Surgical method is preferable for patients with rigid cusps.

Adult↗