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Obayashi F, Koizumi K, Ito N, Higaki M, Ishida Y, Hamada A, Yamasaki S, Tani R, Yanamoto S. A Study of the Prognostic Factors for Late Cervical Lymph Node Metastasis and Distant Metastasis in Patients with cT1-2N0 Tongue Cancer. J Clin Med 2024; 13:976. [PMID: 38398289 PMCID: PMC10889310 DOI: 10.3390/jcm13040976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Background: Early-stage tongue cancer has a good prognosis in general; however, high-risk patients with late cervical lymph node and distant metastases have a poor prognosis. Elective neck dissection and postoperative chemoradiotherapy are considered for these patients, although no clear criteria have been identified for their evaluation. Methods: This retrospective observational study aimed to determine the predictive factors for late cervical lymph node and distant metastases in 102 patients with cT1-2N0 tongue cancer. The data regarding the demographic characteristics, as well as the depth of invasion, tumor budding, histological grade, and tumor-stromal ratio, among other things, were extracted from medical records. Results: We found that the potential lymph node metastasis rate was 27.5%. The significant clinical predictors of late cervical lymph node metastasis were the tumor thickness and endophytic growth pattern and the significant histopathological factors were poorly and moderately differentiated tumors and ≥3 tumor buds. In addition, the prognostic factors for distant metastasis included ≥4 lymph node metastases, ≥7 tumor budding, and moderate and poor tumor differentiation. Conclusions: The usefulness of tumor budding as a predictor of metastasis for tongue cancer was suggested. The findings of this study can help establish the criteria for evaluating the metastasis risk and prognosis of patients with tongue cancers.
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Affiliation(s)
- Fumitaka Obayashi
- Department of Oral Oncology, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Tani R, Yamasaki S, Hamada A, Higaki M, Asada Y, Yanamoto S. Clinical Efficacy and Safety of Lidocaine Tape for Topical Anesthesia of the Oral Mucosa: A Preliminary Controlled Trial. Dent J (Basel) 2023; 11:276. [PMID: 38132414 PMCID: PMC10742647 DOI: 10.3390/dj11120276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
Local anesthesia is administered to reduce pain-induced stress during dental treatment. However, local anesthetic injections are extremely painful; thus, methods to minimize this pain should be developed. Clinical studies on the pain-relieving effects of dental topical anesthetics have shown that few topical anesthetics provide fast and adequate pain relief without harming the oral mucosa. We examined the efficacy and safety of lidocaine tape, which has a potent topical anesthetic effect. Lidocaine tape was applied to the oral mucosa of 14 healthy participants, and its suppression effect was assessed by examining the pain intensity at the non-lidocaine tape-applied site using the visual analog evaluation scale and the verbal evaluation scale. Lidocaine tape application significantly reduced visual analog scale (VAS) scores during mucosal puncture compared to non-application (p < 0.01). Moreover, lidocaine tape application significantly reduced VAS scores during local anesthetic injection compared to non-application (p < 0.001). Adverse events were evaluated using the Common Terminology Criteria for Adverse Events, version 5.0. No adverse events attributed to the application of lidocaine tape were observed in any participant. The findings in this study suggest that the application of lidocaine tape before infiltration anesthesia can reduce patient distress.
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Affiliation(s)
- Ryouji Tani
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan; (S.Y.); (A.H.); (M.H.); (Y.A.); (S.Y.)
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Ito N, Yamasaki S, Shintani T, Matsui K, Obayashi F, Koizumi K, Tani R, Yanamoto S, Okamoto T. Tumor-Infiltrating CD45RO + Memory Cells Are Associated with Favorable Prognosis in Oral Squamous Cell Carcinoma Patients. Cancers (Basel) 2023; 15:cancers15082221. [PMID: 37190149 DOI: 10.3390/cancers15082221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/22/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Tumor-infiltrating lymphocytes (TILs) have been used to predict the prognosis of solid tumors. In this study, we investigated which molecules in TILs play a role in the prognosis of patients with oral squamous cell carcinoma (OSCC). METHODS In a retrospective case-control study, we immunohistochemically evaluated the expression of CD3, CD8, CD45RO, Granzyme B, and the major histocompatibility complex class I chain-related molecule A (MICA) of the histocompatibility complex as predictors of prognosis in 33 patients with OSCC. The patients were classified as TILsHigh or TILsLow according to the number of TILs for each molecule in the central tumor (CT) and invasive margin (IM). Furthermore, MICA expression scores were determined based on the intensity of the staining. RESULTS CD45RO+/TIL in the nonrecurrent group were significantly higher than those in the recurrent group in the CT and IM areas (p < 0.05). The disease-free survival/overall survival rate of the CD45RO+/TILsLow group in the CT and IM areas and the Granzyme B+/TILsLow group in the IM area was significantly lower than that of the CD45RO+/TILsHigh group and the Granzyme B+/TILsHigh group, respectively (p < 0.05). Furthermore, the MICA expression score of tumors around the CD45RO+/TILsHigh group was significantly higher than that of the CD45RO+/TILsLow group (p < 0.05). CONCLUSIONS A high ratio of CD45RO-expressing TILs was associated with a disease-free/overall survival improvement in OSCC patients. Furthermore, the number of TILs that express CD45RO was associated with the expression of MICA in tumors. These results suggest that CD45RO-expressing TILs are useful biomarkers for OSCC.
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Affiliation(s)
- Nanako Ito
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Sachiko Yamasaki
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Tomoaki Shintani
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima 734-8551, Japan
| | - Kensaku Matsui
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Fumitaka Obayashi
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Koichi Koizumi
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Ryouji Tani
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Souichi Yanamoto
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Tetsuji Okamoto
- Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
- School of Medical Sciences, University of East Asia, Shimonoseki 751-8503, Japan
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Miyata H, Tani R, Toratani S, Okamoto T. Effects of Tongue Pressure on Cerebral Blood Volume Dynamics: A Functional Near-Infrared Spectroscopy Study. Brain Sci 2022; 12:brainsci12020296. [PMID: 35204059 PMCID: PMC8870264 DOI: 10.3390/brainsci12020296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/10/2022] [Accepted: 02/17/2022] [Indexed: 11/24/2022] Open
Abstract
Tongue pressure measurement (TPM) is an indicator of oral function. However, the association between tongue pressure and cerebral activation remains unclear. We used near-infrared spectroscopy (NIRS) to examine the correlation between cerebral cortex activation and tongue pressure stimulation against the anterior palatal mucosa. We measured voluntary maximum tongue pressure (MTP) using a TPM device; a pressure value of approximately 60% of the MTP was used for the experimental tongue pressure (MTP60%). We examined the effect of oral functional tongue pressure stimulation against the anterior palatal mucosa on cerebral activation using NIRS in 13 adults. Tongue pressure stimulation caused significant changes in cerebral blood flow in some areas compared with controls (p < 0.05). We performed a correlation analysis (p < 0.05) between MTP60% and changes in oxygenated hemoglobin in all 47 NIRS channels. MTP60% triggered activation of the right somatosensory motor area and right dorsolateral prefrontal cortex and deactivation of the anterior prefrontal cortex (APFC). TPM balloon-probe insertion in the oral cavity activated the bilateral somatosensory motor area and deactivated the wide area of the APFC. Moreover, MTP60% via the TPM balloon probe activated the bilateral somatosensory and motor cortex areas. Tongue pressure stimulation changes cerebral blood flow, and NIRS is useful in investigating the relationship between oral stimulation and brain function.
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Affiliation(s)
- Hidemasa Miyata
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (H.M.); (S.T.)
| | - Ryouji Tani
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
- Correspondence: ; Tel.: +81-82-257-5665; Fax: +81-82-257-5669
| | - Shigeaki Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (H.M.); (S.T.)
| | - Tetsuji Okamoto
- School of Medical Sciences, University of East Asia, 2-1 Ichinomiyagakuenchō, Shimonoseki 751-8503, Japan;
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Tani R, Ito N, Matsui K, Yamasaki S, Hamada A, Tokumaru K, Toratani S, Okamoto T. MICA A5.1 homozygous genotype is associated with a risk for early-onset oral cancer. Oral Oncol 2021; 116:105256. [PMID: 33730629 DOI: 10.1016/j.oraloncology.2021.105256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Genetic predisposition is reportedly involved in early-onset oral cancer, although the genetic basis of this cancer remains unclear. The major histocompatibility complex class I-related chain A (MICA) plays a crucial role in eliminating malignant tumors by activating NKG2D, the natural killer (NK) receptor. MICA polymorphism might affect its binding to NKG2D. We aimed to find whether MICA gene microsatellite polymorphism is involved in the risk of oral squamous cell carcinoma (OSCC) development in a Japanese population. MATERIALS AND METHODS We recruited 386 patients with OSCC and 103 healthy controls. Genomic DNA was analyzed by PCR for microsatellite repeat polymorphism in the transmembrane region of the MICA gene. The groups were compared for the prevalence of various alleles and their association with disease prognosis and survival. RESULTS We found that adolescents and young adults (AYA) with OSCC were more likely to have the MICA A5.1 homozygous genotype than healthy controls (P = 0.0001), but their survival rate was higher than with other MICA genotypes (P = 0.0185). CONCLUSION These results suggest that cancer's immune escape is facilitated by MICA's failure to activate the NK cells. MICA A5.1 homozygosity plays a role in individual susceptibility to OSCC, increasing the risk of early-onset oral cancer. However, such patients have a better prognosis than those with other MICA genotypes.
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Affiliation(s)
- Ryouji Tani
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan.
| | - Nanako Ito
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
| | - Kensaku Matsui
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
| | - Sachiko Yamasaki
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
| | - Atsuko Hamada
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
| | - Koichiro Tokumaru
- NIHON KEFIA Co., Ltd, 13-16, Asahicho, Fujisawa-shi, Kanagawa 251-0054, Japan
| | - Shigeaki Toratani
- Dept. of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan
| | - Tetsuji Okamoto
- Dept. of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; School of Medical Sciences, University of East Asia, 2-1 Ichinomiyagakuenchō, Shimonoseki-shi, Yamaguchi 751-8503, Japan
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Higaki M, Kanda T, Ando T, Tani R, Toratani S. Development of Kikuchi-Fujimoto disease after a cervical lymph node metastasis of mucoepidermoid carcinoma: a case report. Oral Maxillofac Surg 2020; 25:133-137. [PMID: 32856133 DOI: 10.1007/s10006-020-00900-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/24/2020] [Indexed: 11/29/2022]
Abstract
Kikuchi-Fujimoto disease (KFD) was first reported by Kikuchi and Fujimoto in 1972 as a rare disease with lymphadenitis of unknown etiology. KFD is characterized by the main symptoms of fever and enlarged cervical lymph nodes (LNs), which are similar to the features of other LN-associated diseases. Therefore, it is difficult to diagnose this condition. We report the case of a 24-year-old woman who presented with KFD after surgery to treat a mucoepidermoid carcinoma of the palate and dissection of the left neck. The patient presented with a fever and right cervical lymphadenopathy when she visited our department for a regular follow-up related to the mucoepidermoid carcinoma. The results of computed tomography and ultrasonography evaluations led to a clinical diagnosis of lymph node metastasis, and a right neck dissection was performed. However, the pathological tissue analysis did not suggest malignancy but showed necrosis and various cellular infiltrates. We made a diagnosis of KFD from these clinical and pathological features. KFD may be misdiagnosed as a LN-associated disease such as metastasis. Clinically, KFD should be considered in patients with head and neck cancer who present with cervical lymphadenopathy.
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Affiliation(s)
- Mirai Higaki
- Department of Oral and Maxillofacial Surgery, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan.
| | - Taku Kanda
- Department of Oral and Maxillofacial Surgery, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan
| | - Toshinori Ando
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima, Japan
| | - Ryouji Tani
- Department of Oral and Maxillofacial Surgery, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan
| | - Shigeaki Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Yamasaki S, Tani R, Sakurai S, Toratani S, Okamoto T. Oral squamous cell carcinoma of the tongue dorsum with multiple cancer-associated mutations in the TP53 gene. Oral Oncol 2020; 109:104774. [PMID: 32451170 DOI: 10.1016/j.oraloncology.2020.104774] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/01/2020] [Accepted: 05/03/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Squamous cell carcinoma (SCC) of the tongue is one of the most common oral cancers, tongue dorsum being a site of low incidence of primary SCC. We report a rare case of SCC of the tongue dorsum in a 69-year-old man having a history of multiple cancers, including esophageal cancer, gastric cancer, and renal cell carcinoma. We discuss the findings in relation to past reports. MATERIALS AND METHODS TP53 was PCR amplified using the genomic DNA extracted from peripheral blood mononuclear cells and formalin-fixed, paraffin-embedded tissue sections from the tumor site of the patient, and was sequenced. RESULTS Physical examination revealed an elastic hard mass on the tongue dorsum, with a size of 22 × 15 mm. There were no palpable enlarged lymph nodes in the cervical and submandibular region. An incisional biopsy was performed. The diagnosis was well-differentiated SCC of tongue, T2N0M0, Stage II, and was treated through surgery. Surgical specimen of the deep ulcer area showed increased expression of p16 protein with no expression of p53 protein. He had a heterozygous gene polymorphism (c.215C > G: p.Pro72Arg) and a germline mutation (c.838A > T: p.Arg280*) of the TP53. However, there has been no recurrence or metastasis of the tongue carcinoma through the follow-up for 3 years. CONCLUSION Germline TP53 mutation and codon 72 polymorphism are risk factors for uncontrolled cell proliferation, possibly leading to the patient's clinical phenotype. Therefore, strict follow-up is required when treating those who are at a higher risk of cancer due to a TP53 mutation.
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Affiliation(s)
- Sachiko Yamasaki
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, 734-8553, Kasumi1-2-3, Minami-ku, Hiroshima City, Hiroshima, Japan.
| | - Ryouji Tani
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, 734-8553, Kasumi1-2-3, Minami-ku, Hiroshima City, Hiroshima, Japan
| | - Shigeru Sakurai
- Oral and Maxillofacial Surgery, Hiroshima University Hospital, 734-8553, Kasumi1-2-3, Minami-ku, Hiroshima City, Hiroshima, Japan
| | - Shigeaki Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 734-8553, Kasumi1-2-3, Minami-ku, Hiroshima City, Hiroshima, Japan
| | - Tetsuji Okamoto
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 734-8553, Kasumi1-2-3, Minami-ku, Hiroshima City, Hiroshima, Japan; Faculty of Allied Health Sciences, University of East Asia, 751-8503, 2-1 Ichinomiyagakuenchō, Shimonoseki-shi, Yamaguchi, Japan
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Toratani S, Ogawa I, Sasahara H, Yoshioka Y, Kanda T, Tani R, Okamoto T. Pathological factors involved in local failure in squamous cell carcinoma of the oral cavity: retrospective study and proposal of a new clinical classification. Int J Oral Maxillofac Surg 2019; 48:143-151. [DOI: 10.1016/j.ijom.2018.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 04/03/2018] [Accepted: 07/06/2018] [Indexed: 01/28/2023]
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Toratani S, Tani R, Kanda T, Koizumi K, Yoshioka Y, Okamoto T. Photodynamic therapy using Photofrin and excimer dye laser treatment for superficial oral squamous cell carcinomas with long-term follow up. Photodiagnosis Photodyn Ther 2016; 14:104-10. [DOI: 10.1016/j.pdpdt.2015.12.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/22/2015] [Accepted: 12/24/2015] [Indexed: 10/22/2022]
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Shintani T, Hayashido Y, Mukasa H, Akagi E, Hoshino M, Ishida Y, Hamana T, Okamoto K, Kanda T, Koizumi K, Yoshioka Y, Tani R, Toratani S, Okamoto T. Comparison of the prognosis of bisphosphonate-related osteonecrosis of the jaw caused by oral and intravenous bisphosphonates. Int J Oral Maxillofac Surg 2015; 44:840-4. [PMID: 25861974 DOI: 10.1016/j.ijom.2015.03.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 03/13/2015] [Accepted: 03/23/2015] [Indexed: 01/03/2023]
Abstract
Bisphosphonates (BPs) have been used in medical practice for the treatment of osteoporosis, bone metastasis, and multiple myeloma. Although many studies have been published, the treatment and prognosis of bisphosphonate-related osteonecrosis of the jaw (BRONJ) remain unclear. This study included 59 patients with BRONJ: 29 had taken oral BPs and 30 had taken intravenous (IV) BPs. All received conservative treatments. When separated sequestra were seen, a sequestrectomy was performed. Segmental mandibular resection was performed when pathological fractures were diagnosed. The outcomes of treatments were compared between groups. For patients treated with oral rinses or mandibular resection, the number in whom clinical healing was observed did not differ between the oral BP and IV BP groups. With regard to sequestrectomy, 94% of patients in the oral BP group showed improvement with this treatment compared to 50% in the IV BP group. The number of patients in whom clinical healing of BRONJ was achieved was statistically better in the oral BP group than in the IV BP group after 6 months of treatment (P<0.001). The results showed that >90% of patients treated with oral BPs could be cured. However, 50% of patients treated with IV BPs did not show an improvement. Additional research is needed to further increase the therapeutic efficacy for the resolution of BRONJ.
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Affiliation(s)
- T Shintani
- Centre of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima, Japan.
| | - Y Hayashido
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - H Mukasa
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - E Akagi
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Hoshino
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Ishida
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Hamana
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Okamoto
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - T Kanda
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - K Koizumi
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Yoshioka
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - R Tani
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - S Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Okamoto
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Shintani T, Miyauchi M, Tani R, Yoshioka Y, Akagi E, Toratani S, Okamoto T. Bisphosphonate-related osteonecrosis of the jaw successfully treated with surgical resection and its histopathological features: A long-term follow-up report. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology 2015. [DOI: 10.1016/j.ajoms.2014.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ishikawa T, Uedo E, Tani R, Saito S. Aromatization of enamines promoted by a stoichiometric amount of palladium(II) salts: a novel method for the synthesis of aromatic amines. J Org Chem 2001; 66:186-91. [PMID: 11429898 DOI: 10.1021/jo001331x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enamines (1a-r) prepared from cyclohexanones, cyclohexane-1,3-diones, or tetralones led to arylamines (2a-r) in one pot when treated with a stoichiometric amount of palladium salts [PdCl2-(MeCN)2] in acetonitrile in the presence of triethylamine at room temperature or at elevated temperature, in some cases for 5 min to 2 h. The initial electrophilic attack of palladium chloride on the beta-carbon of the enamines led to a sigma-palladium species (8) which triggered a series of reactions (-->9-->10-->11-->12) destined for aromatization to give 2a-r in good yields. The intervention of such a sigma-palladium species has been attested by a trapping experiment. On the basis of this reaction mechanism, we have developed another new process capable of transforming acyclic compounds having 6-en-2-one frameworks (16, 23, 25) to arylamines (2s-u) when their enamines were treated under the similar conditions as above, featuring again the formation of sigma-palladium species such as 8 as the initial key intermediate.
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Affiliation(s)
- T Ishikawa
- Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University, Tsushima, Okayama, Japan 700-8530
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Tani R, Ozaki S, Kosaka M, Fujiwara S, Shibata H, Wakatsuki S, Matsumoto T. Fas ligand-induced apoptosis of hepatocytes in natural killer cell leukaemia. Br J Haematol 1999; 106:709-12. [PMID: 10468861 DOI: 10.1046/j.1365-2141.1999.01594.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Neoplastic natural killer (NK) cells overexpress Fas ligand (FasL), which may cause damage of Fas-bearing tissues. We report a patient with NK cell leukaemia who developed liver injury after pharyngitis. The NK leukaemic cells expressed functional FasL. In addition to soluble FasL, serum levels of interleukin-6 and interferon-gamma were increased dramatically when liver injury was aggravated. Moreover, hepatocytes expressed Fas and apoptotic hepatocytes were detected in the portal areas. These findings are consistent with the notion that inflammatory cytokines enhance the sensitivity to FasL and trigger apoptosis of hepatocytes in NK cell malignancies.
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Affiliation(s)
- R Tani
- First Department of Internal Medicine, School of Medicine, University of Tokushima, Japan
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14
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Tanaka Y, Michimukai E, Zhang Y, Sakamoto A, Ochi Y, Tani R, Osaki T, Toratani S, Okamoto T. Molecular diagnosis and gene therapy of salivary gland tumors. Int J Oral Maxillofac Surg 1997. [DOI: 10.1016/s0901-5027(97)81618-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Tani R, Sakamoto A, Toratani S, Osaki T, Ochi Y, Tanaka Y, Zhang Y, Michimukai E, Sasahara H, Okamoto T. A study of cellular immunity in head and neck cancer patients. Int J Oral Maxillofac Surg 1997. [DOI: 10.1016/s0901-5027(97)81500-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Okamoto T, Tani R, Yabumoto M, Sakamoto A, Takada K, Sato GH, Sato JD. Effects of insulin and transferrin on the generation of lymphokine-activated killer cells in serum-free medium. J Immunol Methods 1996; 195:7-14. [PMID: 8814314 DOI: 10.1016/0022-1759(96)00081-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We have developed a serum-free medium designated RDSF for the generation of LAK cells based on RD6F medium, which was originally developed as a serum-free medium for the growth of myeloma and hybridoma cells. The cytotoxic activity of LAK cells generated in RDSF against Raji, K562 and oral cancer cells, is 3-4 times that of LAK cells generated in medium containing 10% human type AB serum. RDSF medium consisted of nutrient mixture supplemented with transferrin, 2-aminoethanol, 2-mercaptoethanol, sodium selenite and interleukin-2. In this study, we have found that insulin which has been shown to be the most important polypeptide hormone in serum-free media for animal cells, inhibited the generation of cytotoxic activity of LAK cells cultured from peripheral blood lymphocytes. In addition, we found that transferrin was an essential component for the growth and generation of LAK cells in serum-free culture. These results suggest that RDSF may be useful in adoptive immunotherapy for cancer as well as for studying factors involved in the growth and differentiation of LAK cells.
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Affiliation(s)
- T Okamoto
- Department of Oral and Maxillofacial Surgery I, Hiroshima University School of Dentistry, Japan.
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17
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Abstract
Pulse oximetry is dependent upon the presence of a pulsating vascular bed. The signal detection will be impaired in the presence of vasoconstriction or venous congestion, conditions which may occur readily in clinical practice. We compared the oximetric measurements (SpO2) at the hand and the foot with arterial hemoglobin saturation (SaO2) during lumbar epidural anesthesia. After administration of a crystalloid solution (20 mL/kg body weight lactated Ringer's solution), 40 adult male patients, scheduled for inguinal hernioplasty, received 15 mL of 0.50% plain bupivacaine into the lumbar epidural space. Two pulse oximeter probes were applied to the index finger and toe of the patients, and the SpO2 values were recorded continuously. Arterial hemoglobin saturation (SaO2) was measured using a co-oximeter 5 min before and 30 min after the onset of sensory block. No significant differences were detected between SaO2 (97.7%, SD 0.4%) and SpO2 basal values recorded from the hand (97.8%, SD 0.8%) and the foot (98.1%, SD 0.4%). After the onset of epidural anesthesia, a progressive decrease of SpO2 value recorded from the hand was observed: at 30 min it was 92.3% +/- 1.3% (P < 0.01 compared with baseline). At the same time, the SaO2 value was 97.5% +/- 0.9% (P < 0.01 compared with SpO2 from the hand). On the contrary, no significant difference from both basal value and SaO2 was detected in SpO2 measurements from the toe during the epidural block. In all patients intraoperative decrease of heart rate and arterial blood pressure was < or = 15% from baseline.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- V A Peduto
- Institute of Anesthesiology and Intensive Care, University of Cagliari, School of Medicine, Italy
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18
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De Gaudio AR, Padelletti MB, Leoni M, Tani R, Bartoloni Saint Omer F, Calzolari A, Orsi A, Festimanni F, Novelli GP. [Induction of bacterial translocation in rats with minimal doses of endotoxin]. Minerva Anestesiol 1993; 59:419-25. [PMID: 8278063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE To determine whether a non lethal dose of intramuscular endotoxin in rats causes a physical disruption of the mucosal barrier and promotes the translocation of bacteria from gut to visceral organs. DESIGN Prospective randomized trial. SETTING Experimental laboratory university medical center. EXPERIMENTS 60 male wistar rats, weighing 250 g. INTERVENTIONS six hours and twenty-four hours after endotoxin (8 mg/kg) or saline (control group) given intramuscularly, rats were sacrificed and mesenteric lymph nodes, spleen and some segments of the ileum were removed. Lymph nodes and spleen were cultured for translocating bacteria while ileum segments were observed by light microscopy. RESULTS Incidence of bacterial translocation increases from 6 hours (40% p < 0.05) to 24 hours (60%, p < 0.01) after endotoxin administration. Histologic evaluation of the ileum demonstrated that a mucosal injury occurred only at the 24 an hour and that it was characterized by an evident pronounced interstitial edema with focal breaks in the basal membranes of villous and glands. CONCLUSIONS It appears that microorganisms and microbial products contained in the gut can cross the mucosal barrier and spread into other visceral organs also after a low dose of intramuscular endotoxin.
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Affiliation(s)
- A R De Gaudio
- Istituto Anestesiologia e Rianimazione, Università degli Studi di Firenze
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19
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Falchi S, Adembri C, Marinelli L, Tani R, Novelli GP. [Comparison of crystalloids and hydroxyethyl starch during normovolemic hemodilution. A study of hemodynamics and saturation measurement]. Minerva Anestesiol 1992; 58:145-9. [PMID: 1377806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Normovolemic hemodilution at two different hematocrit values was performed in ten patients undergoing major surgery to evaluate changes of DO2, VO2 and CI. A Hct of 38% (low hemodilution) was reached by plasma replacement with ringer lactate infusion. A further hemodilution, a Hct of 30% (high hemodilution), was obtained by hydroxyethyl starch plus ringer lactate (1:2 ratio) infusion. A significant VO2 increase (p less than 0.01) occurred when hydroxyethyl starch plus ringer lactate infusions were employed as compared to ringer lactate alone. No changes in DO2 and CI were observed, the increase in VO2 measured during colloid infusion could suggest a better tissue perfusion and metabolic activity.
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Affiliation(s)
- S Falchi
- Istituto di Anestesia e Rianimazione, Università degli Studi di Firenze
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20
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Affiliation(s)
- V A Peduto
- Institute of Anesthesia and Intensive Care, University of Cagliari School of Medicine, Italy
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21
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Tani R, Marinelli L, Falchi S, Novelli GP. [Intraoperative changes in aerobic and anaerobic metabolism as prognostic index in interventions of massive hepatic resection]. Minerva Anestesiol 1992; 58:7-12. [PMID: 1589069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study was conducted on 10 patients with primitive or metastatic liver tumors, scheduled for massive liver resections, in order to search for evidence of the existence of intraoperative prognostic indexes having a bearing upon postoperative survival. The following parameters were measured in every patient: HR, MAP, CVP, MPAP, WP, SVR, PVR, CI, DO2, VO2, BE, before the anhepatic period (A), during anhepatic period (B), 30' (C), and 60' (D) after liver reperfusion, holding constant Hct, body temperature, ETCO2, FiO2, anesthetic depth, and the degree of muscular relaxation. The patients were later divided into two groups: 1, nonsurvivors in the postoperative period (4 patients) due to MOF; 2, survivors (6 patients). The values of the measured parameters of the two groups were statistically evaluated at each of the above intervals, and within each group with respect to time A, taken as a control. No significant variations were found in HR, MAP, CVP, MPAP, WP, SVR, PVR, CI, and DO2. The VO2 diminished in both groups during the anhepatic period (B) (p less than 0.0025). In group 1 (nonsurvivors) the VO2 diminished after the reperfusion (p less than 0.0025), while in group 2 (survivors) VO2 rapidly resumed its initial values (n.s. 30' and 60' after the reperfusion). In the nonsurviving patients metabolic acidosis developed, with significant reductions of BE (p less than 0.0025) during times C and D, occurring simultaneously with the reduction of VO2.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R Tani
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Firenze
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22
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Rossi R, Tani R, Falchi S, Novelli GP. [Jugular oxygen saturation as an index of cerebral blood flow during carotid endarterectomy]. Minerva Anestesiol 1991; 57:107-10. [PMID: 1806816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R Rossi
- Istituto di Anestesiologia e Rianimazione, Università di Firenze
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23
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Falchi S, Marinelli L, Tani R, Adembri C, Novelli GP. [Oxygen consumption as a guide in volemic replacement in patients undergoing normovolemic intentional hemodilution]. Minerva Anestesiol 1991; 57:115-8. [PMID: 1806817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- S Falchi
- Ist. Anestesiologia e Rianimazione, Università degli Studi di Firenze
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24
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Tani R, Marinelli L, Falchi S, Scardi S, Novelli GP. [Evaluation of oxygen consumption as an early prognosis index in massive hepatic resections]. Minerva Anestesiol 1991; 57:103-6. [PMID: 1806815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R Tani
- Istituto di Anestesiologia e Rianimazione, Università di Firenze
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25
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Marinelli L, Tani R, Falchi S, Adembri C, Novelli GP. [Hydroxyethyl starch as diluent of choice during intentional normovolemic hemodilution]. Minerva Anestesiol 1991; 57:111-4. [PMID: 1725454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- L Marinelli
- Ist. Anestesiologia e Rianimazione, Università degli Studi di Firenze
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26
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Tani R, Marinelli L, Falchi S, Cellai M, Novelli GP. [Perfusion in muscular tissue (leg) in anesthesia]. Minerva Anestesiol 1991; 57:1135-41. [PMID: 1784352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R Tani
- Ist. Anestesiologia e Rianimazione dell'Università degli Studi di Firenze
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27
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Marinelli L, Adembri C, Cellai MP, Falchi S, Tani R, Novelli GP. [Plasma proteins as replacement solution during normovolemic intentional hemodilution]. Minerva Anestesiol 1991; 57:806-7. [PMID: 1798588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- L Marinelli
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Firenze
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28
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Falchi S, Adembri C, Cellai M, Marinelli M, Tani R, Novelli GP. [Oxygen transport and safety hematocrit during hemodilution]. Minerva Anestesiol 1991; 57:808-9. [PMID: 1798589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- S Falchi
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Firenze
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29
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Cellai MP, Tani R, Falchi S, Marinelli L, Baldini R, Magherini M. [Evaluation of intramucosal gastric pH at various isoflurane concentrations]. Minerva Anestesiol 1991; 57:660-1. [PMID: 1798527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- M P Cellai
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Firenze
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30
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Tani R, Cellai MP, Falchi S, Marinelli L, Laviola S. [Systemic and regional hemodynamic changes caused by nitrogen monoxide in isoflurane anesthesia]. Minerva Anestesiol 1991; 57:642-3. [PMID: 1798518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R Tani
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Firenze
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31
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Abstract
Skin necrosis has not been described as a complication following epidural sympathetic blockade. We report a case of bilateral extensive skin necrosis of the lower limbs after a 48-hour lumbar epidural blockade in a 71-year-old patient with right hemiplegia and mitral valve regurgitation, without any preoperative clinical evidence of peripheral vascular disease or diabetes, who underwent transurethral prostatectomy.
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Affiliation(s)
- V A Peduto
- Institute of Anaesthesiology and Intensive Care, University of Cagliari, Ospedale S. Giovanni di Dio, Italy
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32
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Abstract
Oxygen free-radicals appear to be involved in the pathogenesis of shock; therefore trapping of these radicals would modify the evolution of experimental shock. Experiments were performed on rats submitted to 100% lethal whole body trauma (rotating drum) and their survival, pathology, acid-base status and hematocrit level observed. The spin trapping agent phenyl-t-butyl-nitrone (PBN) was administered before trauma (50, 100, 150 mg/kg i.p.) or at various intervals (30, 60 minutes) after establishment of a severe traumatic shock. It appeared that PBN administration was highly effective both in prevention and in reversion of traumatic shock in rats.
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Affiliation(s)
- G P Novelli
- Institute of Anesthesiology and Intensive Care, Policlinico Careggi, University of Florence, Italy
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33
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Harasawa S, Tani R, Nomiyama T, Sakita R, Miwa M. [Effects of synthetic motilin on gastric emptying in the conscious dog]. Horumon To Rinsho 1979; 27:175-8. [PMID: 428128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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34
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Miwa T, Tani R, Suzuki S, Fukutomi H, Sakita T. [Gastric juice secretion, gastric emptying and its stimulation]. Horumon To Rinsho 1975; 23:155-9. [PMID: 1170036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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35
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Suzuki K, Endo N, Tani R, Kikuchi H. Synthesis of tryptic peptides of hen egg lysozyme (positions 1-5 and 69-73) and related peptides. Chem Pharm Bull (Tokyo) 1974; 22:2462-6. [PMID: 4157066 DOI: 10.1248/cpb.22.2462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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