| 1 | Efficacy of long-term rifaximin treatment for hepatic encephalopathy in the Japanese显示文摘BACKGROUND Hepatic encephalopathy(HE)is a complication of liver cirrhosis and can result in neuropsychological and neuromuscular dysfunctions in patients.Rifaximin,an antibiotic,has been reported to decrease the occurrence of overt HE and also improve cognitive function in studies from Europe and the United States of America.There is not enough evidence of the relationship between the long-term use of rifaximin and its clinical effects in the Japanese.AIM To determine the clinical effects of long-term rifaximin therapy in decompensated liver cirrhosis patients,with overt HE or hyperammonemia.METHODS In this single-center retrospective observational cohort study,we reviewed the data of 38 patients who had taken rifaximin at the dose of 1200 mg/d for more than 24 wk.The primary outcome measured was the efficacy of long-term rifaximin use,and secondary outcome measured was the safety of its long-term use as determined by its influence on portosystemic shunts as well as Escherichia coli-related infections.Moreover,we compared the prognosis between the rifaximin group and control cases,matched for hepatic elasticity assessed by magnetic resonance ela-stography,age,and Child-Pugh classification.RESULTS Of the 38 patients included in the study,12(31.6%)had overt HE,27(71.1%)had complications of esophageal varices,and 9(23.7%)had hepatocellular carcinoma(HCC).The control group was matched for age,Child-Pugh classification,liver stiffness,and presence of HCC.The median of serum ammonia level before treatment was 104μg/dL(59-297),and 2 wk after treatment,it significantly decreased to 85μg/dL(34-153)(P=0.002).A significantly low value of 80.5μg/dL(44-150)was maintained 24 wk after treatment.The long-term use of rifaximin did not cause a decline in liver function.Diarrhea occurred in 2 patients,who improved with the administration of probiotics,and there were no cases of aborted rifaximin therapy owing to adverse events.In patients with Child C,the survival was short,but there was no significant difference compared with that of the control group.CONCLUSION Rifaximin therapy improves overt HE.The long-term use of rifaximin in the Japanese is effective and safe. | Shinya Nishida Koichi Hamada Noriyuki Nishino Daizo Fukushima Ryota Koyanagi Yoshinori Horikawa Yoshiki Shiwa Satoshi Saitoh | 2019 | World Journal of Hepatology2019，11，6： | 3 |
| 2 | Micromolar sodium fluoride mediates anti-osteoclastogenesis in Porphyromonas gingivalis-induced alveolar bone loss显示文摘Osteoclasts are bone-specific multinucleated cells generated by the differentiation of monocyte/macrophage lineage precursors.Regulation of osteoclast differentiation is considered an effective therapeutic approach to the treatment of bone-lytic diseases.Periodontitis is an inflammatory disease characterized by extensive bone resorption. In this study, we investigated the effects of sodium fluoride(Na F) on osteoclastogenesis induced by Porphyromonas gingivalis, an important colonizer of the oral cavity that has been implicated in periodontitis. Na F strongly inhibited the P. gingivalis-induced alveolar bone loss. That effect was accompanied by decreased levels of cathepsin K, interleukin(IL)-1β, matrix metalloproteinase 9(MMP9), and tartrate-resistant acid phosphatase,which were up-regulated during P. gingivalis-induced osteoclastogenesis. Consistent with the in vivo anti-osteoclastogenic effect,Na F inhibited osteoclast formation caused by the differentiation factor RANKL(receptor activator of nuclear factor kB ligand)and macrophage colony-stimulating factor(M-CSF). The RANKL-stimulated induction of the transcription factor nuclear factor of activated T cells(NFAT) c1 was also abrogated by Na F. Taken together, our data demonstrate that Na F inhibits RANKL-induced osteoclastogenesis by reducing the induction of NFATc1, ultimately leading to the suppressed expression of cathepsin K and MMP9.The in vivo effect of Na F on the inhibition of P. gingivalis-induced osteoclastogenesis strengthens the potential usefulness of Na F for treating periodontal diseases. | Ujjal K Bhawal Hye-Jin Lee Kazumune Arikawa Michiharu Shimosaka Masatoshi Suzuki Toshizo Toyama Takenori Sato Ryota Kawamata Chieko Taguchi Nobushiro Hamada Ikuo Nasu Hirohisa Arakawa Koh Shibutani | 2015 | International Journal of Oral Science2015，7，4： | 3 |
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