1.Failure of Fecal Microbiota Transplantation in a Three-Year-Old Child with Severe Refractory Ulcerative Colitis.
Hideki KUMAGAI ; Koji YOKOYAMA ; Tomoyuki IMAGAWA ; Shun INOUE ; Janyerkye TULYEU ; Mamoru TANAKA ; Takanori YAMAGATA
Pediatric Gastroenterology, Hepatology & Nutrition 2016;19(3):214-220
Fecal microbiota transplantation (FMT) is a treatment designed to correct gut dysbiosis by administration of feces from a healthy volunteer. It is still unclear whether FMT for children with ulcerative colitis (UC) is effective or hazardous. Here we describe a young patient to have received FMT for UC. A three-year-old girl was admitted to our hospital with severe active UC, and treated with aminosalicylates and various immunosuppressive drugs. As remission was not achieved, we decided to try FMT before colectomy. We administered donor fecal material a total of six times by retention enema (×2) and via a nasoduodenal tube (×4) within 10 days. The patient developed abdominal pain and pyrexia after each FMT session. Analyses revealed the transferred donor fecal microbiota had not been retained by the patient, who ultimately underwent colectomy. The severity of the UC and/or timing of FMT may have partly accounted for the poor outcome.
Abdominal Pain
;
Child*
;
Colectomy
;
Colitis, Ulcerative*
;
Dysbiosis
;
Enema
;
Fecal Microbiota Transplantation*
;
Feces
;
Female
;
Fever
;
Gastrointestinal Microbiome
;
Healthy Volunteers
;
Humans
;
Inflammatory Bowel Diseases
;
Microbiota
;
Tissue Donors
;
Ulcer*
2.Upregulation of epidermal growth factor receptor 4 in oral leukoplakia.
Hiroshi KOBAYASHI ; Kenichi KUMAGAI ; Akito GOTOH ; Takanori EGUCHI ; Hiroyuki YAMADA ; Yoshiki HAMADA ; Satsuki SUZUKI ; Ryuji SUZUKI
International Journal of Oral Science 2013;5(1):14-20
In the present study, we investigate the expression profile of the epidermal growth factor receptor family, which comprises EGFR/ErbB1, HER2/ErbB2, HER3/ErbB3 and HER4/ErbB4 in oral leukoplakia (LP). The expression of four epidermal growth factor receptor (EGFR) family genes and their ligands were measured in LP tissues from 14 patients and compared with levels in 10 patients with oral lichen planus (OLP) and normal oral mucosa (NOM) from 14 healthy donors by real-time polymerase chain reaction (PCR) and immunohistochemistry. Synchronous mRNA coexpression of ErbB1, ErbB2, ErbB3 and ErbB4 was detected in LP lesions. Out of the receptors, only ErbB4 mRNA and protein was more highly expressed in LP compared with NOM tissues. These were strongly expressed by epithelial keratinocytes in LP lesions, as shown by immunohistochemistry. Regarding the ligands, the mRNA of Neuregulin2 and 4 were more highly expressed in OLP compared with NOM tissues. Therefore, enhanced ErbB4 on the keratinocytes and synchronous modulation of EGFR family genes may contribute to the pathogenesis and carcinogenesis of LP.
Adult
;
Aged
;
Amphiregulin
;
Betacellulin
;
EGF Family of Proteins
;
Epidermal Growth Factor
;
metabolism
;
Epiregulin
;
Female
;
Gene Expression Profiling
;
Glycoproteins
;
metabolism
;
Heparin
;
metabolism
;
Heparin-binding EGF-like Growth Factor
;
Humans
;
Intercellular Signaling Peptides and Proteins
;
metabolism
;
Keratinocytes
;
metabolism
;
Leukoplakia, Oral
;
metabolism
;
Lichen Planus, Oral
;
metabolism
;
Ligands
;
Male
;
Middle Aged
;
Mouth Mucosa
;
metabolism
;
Nerve Growth Factors
;
Neuregulins
;
metabolism
;
RNA, Messenger
;
metabolism
;
Real-Time Polymerase Chain Reaction
;
Receptor, Epidermal Growth Factor
;
metabolism
;
Receptor, ErbB-2
;
metabolism
;
Receptor, ErbB-3
;
metabolism
;
Receptor, ErbB-4
;
Receptors, Cell Surface
;
metabolism
;
Transforming Growth Factor alpha
;
metabolism
;
Up-Regulation
;
physiology
3.Aspergillus oryzae S-03 Produces Gingipain Inhibitors as a Virulence Factor for Porphyromonas gingivalis.
Narandalai DANSHIITSOODOL ; Hideyuki YAMASHITA ; Masafumi NODA ; Takanori KUMAGAI ; Yasuyuki MATOBA ; Masanori SUGIYAMA
Journal of Bacteriology and Virology 2014;44(2):152-161
Oral infection with Porphyromonas (P.) gingivalis causes periodontitis that is manifested by the destruction of gingival connective tissues. Although a few types of antibiotics are effective against the infection, its use induces the appearance of drug-resistant bacteria. The present study shows that the fermented product of Aspergillus (A.) oryzae S-03, cultivated on the fat-removed soybean, inhibits the cell growth of the P. gingivalis. Likewise, the fermented product of the S-03 strain cultured for 26~42 h displays an inhibitory activity to gingipain as a virulence factor of P. gingivalis. The activity is not lost even with heat treatment at 100degrees C for 15 min. We also demonstrate that the S-03 strain exhibits high protease activity. In addition, the strain does not produce aflatoxin because of the loss of a regulatory gene, aflR, necessary for the toxin biosynthesis.
Aflatoxins
;
Anti-Bacterial Agents
;
Aspergillus
;
Aspergillus oryzae*
;
Bacteria
;
Connective Tissue
;
Genes, Regulator
;
Hot Temperature
;
Oryza
;
Periodontitis
;
Porphyromonas
;
Porphyromonas gingivalis*
;
Soybeans
;
Virulence*