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Hatayama Y, Nakamura T, Suzuki M, Azami Y, Ono T, Yamaguchi H, Hayashi Y, Tsukiyama I, Hareyama M, Kikuchi Y, Takai Y. Preliminary results of proton-beam therapy for stage III non-small-cell lung cancer. Curr Oncol 2015; 22:e370-5. [PMID: 26628878 PMCID: PMC4608411 DOI: 10.3747/co.22.2523] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND We conducted a preliminary retrospective evaluation of the efficacy and toxicity of proton-beam therapy (pbt) for stage iii non-small-cell lung cancer. METHODS Between January 2009 and August 2013, 27 patients (26 men, 1 woman) with stage iii non-small-cell lung cancer underwent pbt. The relative biologic effectiveness value of the proton beam was defined as 1.1. The beam energy and spread-out Bragg peak were fine-tuned such that the 90% isodose volume of the prescribed dose encompassed the planning target volume. Of the 27 patients, 11 underwent neoadjuvant chemotherapy. Cumulative survival curves were calculated using the Kaplan-Meier method. Treatment toxicities were evaluated using version 4 of the Common Terminology Criteria for Adverse Events. RESULTS Median age of the patients was 72 years (range: 57-91 years), and median follow-up was 15.4 months (range: 7.8-36.9 months). Clinical stage was iiia in 14 patients (52%) and iiib in 13 (48%). The median dose of pbt was 77 GyE (range: 66-86.4 GyE). The overall survival rate in the cohort was 92.3% at 1 year and 51.1% at 2 years. Locoregional failure occurred in 7 patients, and distant metastasis, in 10. In 2 patients, initial failure was both locoregional and distant. The 1-year and 2-year rates of local control were 68.1% and 36.4% respectively. The 1-year and 2-year rates of progression-free survival were 39.9% and 21.4% respectively. Two patients experienced grade 3 pneumonitis. CONCLUSIONS For patients with stage iii non-small-cell lung cancer, pbt can be an effective and safe treatment option.
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Kosugi C, Koda K, Tanaka K, Shuto K, Matsuo K, Mori M, Hirano A, Hiroshima Y, Endo S, Yanagibashi H, Kikuchi Y. 2071 Evaluation of neoadjuvant chemotherapy with modified FOLFOX6 (combination chemotherapy of infusional 5-FU/l-Leucovorin and intermittent oxaliplatin) with bevacizumab in patients with advanced lower rectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30994-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kikuchi Y, Shirakawa K, Kanauchi H, Wakeda T, Niwa T, Nishioka K, Tada K, Uchida Y, Seto Y. 1873 A retrospective multicenter observation study about comparative analysis on efficacy of eribulin mesylate with taxane regimens (including combination with bevacizumab) in metastatic breast cancer patients. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30823-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kikuchi Y, Kuraoka A. Sexual Dimorphism of Endocranial, Facial and Limb Measurements in the Yellow Baboon ( Papio cynocephalus). Anat Histol Embryol 2015; 44:275-82. [DOI: 10.1111/ahe.12136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 06/29/2014] [Indexed: 11/30/2022]
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Nagai A, Shibamoto Y, Yoshida M, Wakamatsu K, Kikuchi Y. Hypofractionated Stereotactic Radiation Therapy Using Helical Tomotherapy for Single or Multiple Brain Metastases. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nagai A, Shibamoto Y, Yoshida M, Kikuchi Y. Efficacy and Toxicities of Intensity-Modulated Stereotactic Body Radiation Therapy Using Helical Tomotherapy for Lung Cancer and Lung Metastases. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kikuchi Y, Okamoto T, Ogata K, Hagiwara K, Umesaki T, Kenjo M, Komune S, Tobimatsu S. P529: Abnormal auditory synchronization in stuttering: a magnetoencephalographic study. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50627-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Watanabe K, Aoki T, Nagata N, Tanuma J, Kikuchi Y, Oka S, Gatanaga H. Clinical Significance of High Anti-Entamoeba histolytica Antibody Titer in Asymptomatic HIV-1-infected Individuals. J Infect Dis 2013; 209:1801-7. [DOI: 10.1093/infdis/jit815] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Kikuchi Y, Kodama E, Tsukamoto T, Saitou A, Asakura Y, Narita Y, Nakajima A, Ichiba H, Wakui M, Horiguchi M, Koike M, Uchida K, Mihara B. The effect of short-term rehabilitation for patients with spinocerebellar degeneration. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Honda H, Gatanaga H, Aoki T, Watanabe K, Yazaki H, Tanuma J, Tsukada K, Honda M, Teruya K, Kikuchi Y, Oka S. Raltegravir can be used safely in HIV-1-infected patients treated with warfarin. Int J STD AIDS 2013; 23:903-4. [PMID: 23258834 DOI: 10.1258/ijsa.2012.012085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Drug co-administration often affects the patient response to warfarin through various mechanisms. We describe here five HIV-1-infected patients on treatment with warfarin in whom the use of raltegravir was associated with a favourable outcome.
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Biswas G, Korenaga H, Nagamine R, Kawahara S, Takeda S, Kikuchi Y, Dashnyam B, Yoshida T, Kono T, Sakai M. Elevated cytokine responses to Vibrio harveyi infection in the Japanese pufferfish (Takifugu rubripes) treated with Lactobacillus paracasei spp. paracasei (06TCa22) isolated from the Mongolian dairy product. FISH & SHELLFISH IMMUNOLOGY 2013; 35:756-765. [PMID: 23769874 DOI: 10.1016/j.fsi.2013.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/21/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
With the aim of evaluating the effect of a Mongolian dairy product derived Lactobacillus paracasei spp. paracasei (strain 06TCa22) (Lpp) on the cytokine-mediated immune responses to Vibrio harveyi infection, we examined 16 cytokine expressions in the Japanese pufferfish, Takifugu rubripes. Fish were orally treated with the heat-killed Lpp at 1 mg g(-1) body weight d(-1) for 3 days. At 24 h posttreatment, fish were infected by an intramuscular injection of 0.1 mL V. harveyi bacterial suspension (10(8) cfu mL(-1)). Additionally, superoxide anion production (SAP) and phagocytic activity (PA) of head kidney cells were assessed during 120 h postinfection period. Significant up-regulation of pro-inflammatory (IL-1β, IL-6, IL-17A/F-3, TNF-α and TNF-N), cell-mediated immune inducing (IL-12p35, IL-12p40 and IL-18), antiviral/intra-cellular pathogen killing (I-IFN-1 and IFN-γ), anti-inflammatory (IL-10) and lymphocyte agonistic (IL-2, IL-7, IL-15, IL-21 and TGF-β1) cytokines was observed in the treated fish compared to control ones during the pathogen infection. Furthermore, significantly increased SAP and PA (P < 0.01; 0.05) were recorded in the treated fish compared to untreated fish. These results suggest the beneficial role of Lpp in enhancement of cytokine-mediated immunity in the Japanese pufferfish against V. harveyi infection and application of this product as a potential fish immunostimulant.
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Nihei T, Takahashi J, Kikuchi Y, Tsuburaya R, Shiroto T, Ito Y, Matsumoto Y, Nakayama M, Ito K, Shimokawa H. Circadian variation of rho-kinase activity associated with enhanced coronary reactivity in patients with vasospastic angina. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tamaki K, Nagasaka Y, Nishiwaki K, Saito M, Kikuchi Y, Motobayashi K. A Robot System for Paddy Field Farming in Japan. ACTA ACUST UNITED AC 2013. [DOI: 10.3182/20130828-2-sf-3019.00013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Biswas G, Korenaga H, Nagamine R, Takayama H, Kawahara S, Takeda S, Kikuchi Y, Dashnyam B, Kono T, Sakai M. Cytokine responses in the Japanese pufferfish (Takifugu rubripes) head kidney cells induced with heat-killed probiotics isolated from the Mongolian dairy products. FISH & SHELLFISH IMMUNOLOGY 2013; 34:1170-1177. [PMID: 23422813 DOI: 10.1016/j.fsi.2013.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/16/2013] [Accepted: 01/27/2013] [Indexed: 06/01/2023]
Abstract
Cytokine responses in the Japanese pufferfish (Takifugu rubripes) head kidney (HK) cells to heat-killed lactic acid bacteria probiotics isolated from the Mongolian dairy products were investigated by transcriptomic examination. The HK cells were incubated with two heat-killed bacteria, namely Lactobacillus paracasei spp. paracasei (strain 06TCa22) and L. plantarum (strain 06CC2) and the responses of 16 cytokine genes at 0 (control), 1, 4, 8, 12, 24 and 48 h post-stimulation were assayed by multiplex RT-PCR analysis (GenomeLab Genetic Analysis System, GeXPS; Beckman Coulter, Inc.). The 16 genes included in the assay were pro-inflammatory cytokines (IL-1β, IL-6, IL-17A/F-3, TNF-α and TNF-N), cell-mediated immune regulators (IL-12p35, IL-12p40 and IL-18), antiviral (I-IFN-1 and IFN-γ) and other regulatory (IL-2, IL-7, IL-15, IL-21, IL-10 and TGF-β1) cytokines. Despite the differences in the transcriptional profiles, expression of all the cytokines tested here was significantly elevated by both the probiotic bacterial stimulants compared with the unstimulated control. Therefore, this in vitro study has demonstrated the modulation of cytokine defense mechanisms in the HK cells by the two heat-killed probiotics indicating their potentiality as novel immunostimulants to fish. However, strain-dependent varied expression of important cytokines (cell-mediated immune regulators, antiviral and anti-inflammatory cytokines) suggests better efficacy of L. paracasei spp. paracasei strain as fish immunostimulant. Further in vivo studies to elucidate the cytokine regulation networks will validate our present observations. A careful evaluation of ant-inflammatory properties may be undertaken using single strain to affirm the immunostimulatory capability. Moreover, application timings and frequency to assess the longevity of immunostimulant effects and to make the application cost-effective need to be evaluated before any practical use in aquaculture.
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Ohkuma T, Fujii H, Iwase M, Kikuchi Y, Ogata S, Idewaki Y, Ide H, Doi Y, Hirakawa Y, Mukai N, Ninomiya T, Uchida K, Nakamura U, Sasaki S, Kiyohara Y, Kitazono T. Impact of eating rate on obesity and cardiovascular risk factors according to glucose tolerance status: the Fukuoka Diabetes Registry and the Hisayama Study. Diabetologia 2013; 56:70-7. [PMID: 23064292 DOI: 10.1007/s00125-012-2746-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 09/17/2012] [Indexed: 11/26/2022]
Abstract
AIMS/HYPOTHESIS Medical nutrition therapy plays a critical role in the prevention and treatment of type 2 diabetes. However, appropriate measures of eating behaviours, such as eating rate, have not yet been clearly established. The aim of the present study was to examine the associations among eating rate, obesity and cardiovascular risk factors. METHODS A total of 7,275 Japanese individuals aged ≥40 years who had normal fasting glucose levels, impaired fasting glucose or diabetes were divided into four groups according to self-reported eating rate: slow, medium, relatively fast and very fast. The associations between eating rate and various cardiovascular risk factors were investigated cross-sectionally. RESULTS The proportions of participants who were obese or who had elevated waist circumference levels increased progressively with increases in eating rate (p for trend <0.001), regardless of glucose tolerance status. These associations remained significant after adjustment for potential confounders, namely, age, sex, total energy intake, dietary fibre intake, current smoking, current drinking and regular exercise (p for trend <0.001). Blood pressure and lipid levels also tended to increase in association with eating rate. HbA(1c) rose significantly as eating rate increased, even after multivariate adjustment, including BMI, in diabetic patients on insulin therapy (p = 0.02), whereas fasting plasma glucose did not increase significantly. CONCLUSIONS/INTERPRETATION Our findings suggest that eating rate is associated with obesity and other cardiovascular risk factors and therefore may be a modifiable risk factor in the management of cardiovascular risk factors and diabetes.
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Takano M, Ikeda Y, Kudoh K, Kita T, Sasaki N, Kikuchi Y. Complete remission of recurrent and refractory ovarian cancers using weekly administration of bevacizumab and gemcitabine/oxaliplatin: report of two cases. EUR J GYNAECOL ONCOL 2013; 34:90-93. [PMID: 23590010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND A combination therapy with gemcitabine and oxaliplatin (GEMOX) yielded a moderate activity in platinum-resistant ovarian cancers; however, frequent severe toxicities, such as thrombocytopenia and neurotoxicity, were observed. A certain modification of schedule might therefore facilitate the clinical application of the regimen. The authors report two cases that achieved complete response to a weekly administration of bevacizumab and GEMOX. MATERIALS AND METHODS Two patients with platinum-resistant recurrent ovarian cancers received a weekly regimen of GEMOX with bevacizumab: 2 mg/kg of bevacizumab, 300 mg/m2 of gemcitabine, and 30 mg/m2 of oxaliplatin, three weeks on and one week off, Q4 weeks. Complete remission was observed after three to four courses of therapy. Hematologic and non-hematologic toxicities more than grade 2 were not observed during chemotherapy. The patients are now without tumor progression more than 12 months after initiation of therapy. CONCLUSION Weekly administration of bevacizumab and GEMOX had potential activity in recurrent and refractory ovarian carcinomas. These findings warrant necessity of further trial in such clinical settings.
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Takano M, Goto T, Hirata J, Furuya K, Horie K, Takahashi M, Yokota H, Kino N, Kudoh K, Kikuchi Y. UGT1A1 genotype-specific phase I and pharmacokinetic study for combination chemotherapy with irinotecan and cisplatin: a Saitama Tumor Board study. EUR J GYNAECOL ONCOL 2013; 34:120-123. [PMID: 23781580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
INTRODUCTION Genotyping of UGTI1Al could be useful for prediction of severe toxicities for patients treated with irinotecan; however, genotype-based recommended dose (RD) has not been established. The aim of the present study was to determine the RD of irinotecan in combination with cisplatin (CPT-P) for individuals with or without UGT1A1 polymorphisms. MATERIALS AND METHODS According to polymorphisms of UGTIAl*28, *6, and *27, RDs were determined by three-case cohort methods for patients with wild-type and heterotype, and by inter-patient dose escalation for homotype patients. Pharmacokinetic studies were also evaluated. During May 2009 and July 2011, 18 Japanese patients were enrolled; 16 patients with ovarian carcinoma, and two cases with cervical cancer. The RD of irinotecan was determined as 50 mg/m2 for the patients with wild-type, 40 mg/m2 for those with heterotype, and 30 mg/m2 for homotype UGT IAl genotype. RESULTS Patients with homotype UGTIAl1 alleles had a significantly lower glucuronidation ratio in comparison with UGTIAI wild-type and heterotype cases. CONCLUSION UGT1A1 genotype-based RDs of irinotecan in CPT-P therapy were determined. Further studies to investigate efficacy of the RD including response evaluation are needed to confirm the present results.
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Kikuchi Y, Nakaya M, Ikeda M, Takeda M, Nishi M. Job stress and temperaments in female nurses. Occup Med (Lond) 2012; 63:123-8. [PMID: 23266430 DOI: 10.1093/occmed/kqs212] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND According to previous studies, temperament predicts a large share of the variance in job stress. It may be necessary for mental health practitioners to offer intervention strategies in accordance with individual temperament. AIMS To investigate the relationship between job stress and temperament among nurses in a general hospital and to provide insight into personality traits influencing their mental or physical health. METHODS A questionnaire survey of nurses in a general hospital. Work stress was measured using the Japanese version of the Effort-Reward Imbalance (ERI) scale. Temperament was assessed by a Japanese version of Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Autoquestionnaire (TEMPS-A). Hierarchical multiple regression analysis was used to determine the independent contribution of temperament to effort-reward ratio and over-commitment. RESULTS Response rate was 48% (326/685). Temperament predicted part of the variance of the four ERI ratios (effort-reward ratio 26%; effort-esteem ratio 27%; effort-promotion ratio 26%; and effort-security ratio 18%) and also of over-commitment (38%). Depressive temperament influenced all four ERI ratios and over-commitment. Anxious temperament influenced only over-commitment. CONCLUSIONS Nurses with depressive or anxious temperaments should be identified, monitored for signs of job stress and offered interventions to prevent adverse physical and mental effects.
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Hwang SD, Midorikawa N, Punnarak P, Kikuchi Y, Kondo H, Hirono I, Aoki T. Inhibition of Hirame rhabdovirus growth by RNA aptamers. JOURNAL OF FISH DISEASES 2012; 35:927-934. [PMID: 22943666 DOI: 10.1111/jfd.12000] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2012] [Revised: 07/19/2012] [Accepted: 07/24/2012] [Indexed: 06/01/2023]
Abstract
RNA aptamers are artificial nucleic acids that specifically bind to a wide variety of targets. They are an effective tool for pharmaceutical research and development of antiviral agents. Here, we describe four Hirame rhabdovirus (HIRRV)-RNA aptamers (H1, H2, H3 and H4) that we obtained from an in vitro process called the systematic evolution of ligands by exponential enrichment (SELEX). The HIRRV-RNA aptamers specifically bind to HIRRV. Hirame natural embryo (HINAE) cells treated with virus and the RNA aptamer showed a decrease in appearance of cytopathic effect when compared with control (treated only with virus). Rhodovulum sulfidophilum was transformed with genes for the RNA aptamers, and the aptamers were detected in the culture medium, indicating that they were secreted from the cells. Thus, the recombinant R. sulfidophilum might be a powerful tool for the prevention of HIRRV in aquaculture.
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Makita C, Nakamura T, Takada A, Takayama K, Kato T, Kikuchi Y, Fuwa N. Clinical Outcomes of Proton Beam Therapy for Cholangiocarcinoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Takayama K, Nakamura T, Takada A, Makita C, Kato T, Kikuchi Y, Fuwa N. Proton Beam Therapy Combined With Intra-arterial Infusion Chemotherapy for Locally Advanced Tongue Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yokobayashi H, Sugaya M, Miyagaki T, Kai H, Suga H, Yamada D, Minatani Y, Watanabe K, Kikuchi Y, Tamaki T, Sato S. Analysis of serum chemokine levels in patients with HIV-associated eosinophilic folliculitis. J Eur Acad Dermatol Venereol 2012; 27:e212-6. [DOI: 10.1111/j.1468-3083.2012.04592.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kikuchi Y, Nakamura T, Horiuchi Y. IRREDUCIBLE CHRONIC PALMAR DISLOCATION OF THE DISTAL RADIOULNAR JOINT – A CASE REPORT. ACTA ACUST UNITED AC 2012; 10:319-22. [PMID: 16568536 DOI: 10.1142/s0218810405002930] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Accepted: 12/16/2005] [Indexed: 11/18/2022]
Abstract
We report a rare case of irreducible chronic palmar dislocation of the distal radioulnar joint (DRUJ). This case showed that the dislocated ulnar head was impacted to the palmar cortex of the radius probably due to the dynamic force of the pronator quadratus muscle. Re-attachment of the ulnar styloid and partial resection of the ulnar head were necessary to make the reduction of the DRUJ possible. The continuity of the radioulnar ligament to the ulnar head was restored and the stability of DRUJ was maintained after reduction.
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Hoshino T, Hoshino A, Matsubara N, Matsuoka T, Kikuchi Y, Shimbo T, Shimizu T. Relationship between the number of outpatient visits for hypotension in the springtime in Japan, extracted from clinical electronic records, and global solar radiation levels. J Int Med Res 2012; 39:1169-83. [PMID: 21986119 DOI: 10.1177/147323001103900405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hypotension is commonly reported in springtime when health changes, such as autonomic imbalance, are common and its symptoms may cause difficulties in daily activities. In this study, medical data from 101 outpatient clinic attendees (mean age 43.9 years; 16 males) making their first visit for hypotension symptoms, were compared with meteorological data from the clinic's location. The main symptom of hypotension was giddiness on standing. The most common coexisting conditions were gastrointestinal; e.g. gastro-oesophageal reflux disorder and irritable bowel syndrome. The 7-day moving average of total global solar radiation correlated significantly with the 7-day moving average of the number of patients with hypotension. Discriminant analysis revealed an increase in hypotension consultations in the total global solar radiation moving average range 11-19 MJ/m(2), consistent with the local spring season. Guidance--such as wearing compression stockings during springtime--may help to reduce the occurrence of clinical hypotension in susceptible patients.
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Yamamoto A, Kikuchi Y, Homma K, O'uchi T, Furui S. Characteristics of intravascular large B-cell lymphoma on cerebral MR imaging. AJNR Am J Neuroradiol 2011; 33:292-6. [PMID: 22173763 DOI: 10.3174/ajnr.a2770] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
IVL is characterized by a propensity for intravascular tumor cell proliferation. Premortem diagnosis of IVL is difficult because of its nonspecific clinical, laboratory, and imaging manifestations. This study examined cerebral MR imaging patterns of IVL and their changes with and without chemotherapy. Nine of 11 patients studied presented with abnormal findings. We define 5 patterns of abnormal MR imaging findings: 1) infarctlike lesions, 2) nonspecific white matter lesions, 3) meningeal enhancement, 4) masslike lesions, and 5) hyperintense lesions in the pons on T2WI. Seven patients presented with only 1 pattern, while 2 patients presented with multiple patterns. Lesions in 7 treated patients responded to chemotherapy. Pathologic specimens revealed intravascular tumor cell infiltration with associated infarctions, necrosis, congestion, demyelination, vasculitis, and tumor cell extravasation. We conclude that MR imaging patterns can be possible manifestations of intravascular-dominant infiltration by tumor cells with associated occlusion or inflammation, depending on the level of affected vessels.
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