1.Effects of Bulb Type Palatal Lift Prosthesis Therapy on Nasality and Velopharyngeal Function of Patients Following Palatoplasty
Yuko Ogata ; Sachiyo Matsuzaki ; Masaaki Sasaguri ; Yasutaka Kubota ; Akira Suzuki ; Seiji Nakamura ; Kanemitsu Shirasuna ; Norifumi Nakamura
Oral Science International 2009;6(2):73-84
In the present study, the effects of bulb type palatal lift prosthesis (bulb-PLP) therapy on nasality and velopharyngeal function (VPF) of patients with velopharyngeal incompetence (VPI) following palatoplasty were longitudinally assessed.The subjects included 18 patients (3 to 52 years of age) who had shown persistent VPI following palatoplasty and who had received bulb-PLP therapy. Nasality and VPF were assessed by perceptual voice analysis, nasometer test, blowing test, and cephalometric radiographic examination. Based on the outcomes of bulb-PLP therapy, the subjects were classified into two groups: the effective group and the ineffective group. Furthermore, the obturating and VPF-activating effects by bulb-PLP therapy were analyzed, and factors relating to different VPF activities were determined.All subjects achieved adequate VPF by wearing a bulb-PLP. After treatment, 10 patients (55.6%) achieved successful activation of VPF without bulb-PLP (the effective group), while persistent VPI remained in 8 patients (the ineffective group). The beginning-blowing ratio of the effective group was significantly greater than that of the ineffective group (P < 0.05) and the velopharyngeal distance (V-P distance) of the effective group tended to be smaller (P = 0.07). Regarding the shape of the bulb head, the angular type was dominant in the ineffective group, while the round type was dominant in the effective group.Bulb-PLP therapy was useful for providing adequate VPF activation. Possible signs of the subsequent effective activation of VPF are considered to be: 1) preexisting adequate VPF on blowing, 2) smaller V-P distance, and 3) synchronized palatopharyngeal movement.
2.Antibacterial Effect of the Kampo Herbal Medicine, Hochu-ekki-to on Methicillin-Resistant Staphylococcus aureus Positive Mice.
Kenichiro MATSUI ; Yoko UECHI ; Akiko HORIGUCHI ; Guang-yin YANG ; Yoshihiko KITADA ; Yutaka ONO ; Yuko OGATA ; Xiu-xia WANG ; Nong LI ; Yasuhiro KOMATSU ; Shoji SHIMIZU ; Nobuo YAMAGUCHI
Kampo Medicine 1997;48(3):357-367
A decline in the immunopotential of the host plays an essential role in the occurrence of infections with methicillin-resistant Staphylococcus aureus (MRSA) or other multi-drug resistant microorganisms. In the present study, mytomycin C (MMC)-treated mice with or without the infection of MRSA were used to examine the bacteriostatic action as well as the immunopotentiating action of the promising herbal medicine, Hochu-ekki-to (HET). Basic experimental data showed the drug to be effective in the treatment of MRSA infection. Eight to ten week old male C57BL mice were injected with MMC at a dosage of 5mg/kg/day to inhibit the bone marrow, thus creating a mouse model with reduced immunopotential. A powder extract of HET was administered orally at a dosage of 500mg/kg/day for seven consecutive days. For the infection of MRSA 1×109 cell were injected intraperitoneally. Peritoneal macrophages were prepared by the adherence technique. Macrophage migration, phagocytic activity, and the bactericidal activity were examined by the Boyden chamber method, by the phagocytosis for fluorescent-activated latex beads, and by the nitroblue tetra zolium (NBT) reduction test, respectively.
After the administration of HET, the number of white blood cells in the MMC-treated mice recovered to 80% of the normal value. In addition, the phagocytic activity of macrophages increased to 50%, although that of the non-treated group was only 20%. The bactericidal activity also recovered to a level close to the normal value. The ratio of neutrophils in the HET administered MMC-treated group increased to 2.2% (normal mice, 2.6%) whereas that of the MMC-treated control group was 0.5%. Concerning the function of the immunological cells, IL-1beta and IFNgamma levels were recovered by treatment with HET, as observed by IL-1beta, IL-2 and IFNgamma monitoring. The bacterial count in the liver of the MRSA challenged mice, with or without HET administration peaked 6 hours after the challenge. The number of the group with HET administration was, however, much greater than that of the group without HET administration. The bacteria count in the blood showed an increase 12 and 24 hours after the challenge. Even 24 hours after the challenge, a significant number of bacterial cells existed in the blood of the group without HET administration, whereas only a small number of cells were detected 6 hours after the challenge. All of the control mice died 8 days after the MRSA challenge, whereas the survival rates were 60% for HET treatment, 40% for the vancomycin treatment, and 80% for the HET plus vancomycin treatment, respectively.
As we move towards a society with a high percentage of elderly people, the authors believe Chinese herbal medicine, which activates the immunopotential, will be very helpful in the treatment of opportunistic infections that are common among elderly patients.
3.Establishment of Mouse Model for Salmonella Infection and Trial of Immunomodulating Therapy using Hochu-ekki-to.
Shoji SHIMIZU ; Hitoshi FURUNO ; Akiko HORIGUCHI ; Xiu-xia WANG ; Yuko OGATA ; Yoko UECHI ; Yoshihiko KITADA ; Nong Li ; Kenichiro MATSUI ; Yumiko MATSUI ; Yasuhiro KOMATSU ; Nobuo YAMAGUCHI
Kampo Medicine 1997;48(3):369-376
Resistance to facultative intracellular bacterial pathogens depends on acquired cell-mediated immunity and activation of macrophages by T- lymphocytes. Gamma interferon (IFN-gamma) is believed to be an important mediator of acquired cell-mediated immunity. In the present study, we evaluated the effect of Hochu-ekki-to (HET) on the survival rate and cytokine production with Salmonella infection model by using EL-4-bearing C57BL/6 mice. 1) When HET was administered orally to the tumor-bearing mice, it extended the survival time compared with non-treated controls in experimental infection by virulent strain 116-54. 2) The effect of HET on production of IFN-gamma in cultured splenocytes was tested by using the tumorbearing mice immunized with attenuated live SER strain. Spleen cells prepared from the mice treated with HET produced high levels of IFN-gamma compared with non-treated controls.
The results indicated that orally administered-HET enhanced protective ability to primary Salmonella infection and production of IFN-gamma accompanied by vaccination in EL-4-bearing C57BL/6 mice.
5.Antiplatelet Therapy May Be Insufficient to Prevent Stroke Recurrence Before Percutaneous Patent Foramen Ovale Closure
Hiroyuki KAWANO ; Yuko HONDA ; Takashi JOHNO ; Hibiku MARUOKA ; Kaoru NAKANISHI ; Mikito SAITO ; Kensuke OGATA ; Atsushi YAMAMICHI ; Ayane KAWATAKE ; Teruyuki HIRANO
Journal of Stroke 2023;25(2):307-310
6.A Booklet for Families of Children Dying with Incurable Cancer: Development and Feasibility Study by Opinions of Pediatric Oncology Specialists
Wataru IRIE ; Yuko NAGOYA ; Yuko HATORI ; Saran YOSHIDA ; Akiko OGATA ; Mari MATSUOKA ; Ryohei TATARA ; Jun NAGAYAMA ; Mitsunori MIYASHITA ; Hitoshi SHIWAKU
Palliative Care Research 2018;13(4):383-391
The purpose of this study was to clarify feasibility of a booklet for families of children dying with incurable cancer. Of 267 pediatric oncology specialists, 76 (28%) participated in this cross-sectional survey. Ninety-three percent of participants answered that they were “likely to use” the booklet, and 86% percent answered that they believed the booklet was “helpful” for families. Some participants described various advantages of its use as follows: “able to communicate something that is difficult to put into words,” “easy to understand for families,” “families can read whenever they choose to,” and “able to grasp the direction of dying.” In contrast, other participants described points of attention of use as follows: “optimal timing to bring out,” “acceptance of families,” “direction as interdisciplinary team,” “confidential relationship between families and interdisciplinary team,” “disinclination among health care providers,” and “information volume of the booklet.” Thus, our results validated feasibility of the booklet. In conclusion, pediatric oncology specialists should provide their support of utilizing the booklet for families and assessing each family condition and advantage/attention of using the booklet.