102 results on '"Ogi M"'
Search Results
2. 1996P Primary analysis of post-marketing surveillance (PMS) data for avelumab maintenance therapy in patients (pts) with curatively unresectable urothelial carcinoma (UC) in Japan
- Author
-
Kikuchi, E., Nagata, M., Ito, T., Sato, M., Ogi, M., Morita, M., Kajita, M., and Nishiyama, H.
- Published
- 2024
- Full Text
- View/download PDF
3. Simple Analytical Method for Magnetic Flux Density in Amorphous and Silicon Steel Hybrid-Core for Three-Phase 30 MVA Higher-Efficiency Distribution Transformer
- Author
-
Kobayashi, C., primary, Kurita, N., additional, Ogi, M., additional, Nishimizu, A., additional, Ohara, S., additional, and Masanao, K., additional
- Published
- 2021
- Full Text
- View/download PDF
4. Distribution and localization of caveolin-1 in sinusoidal cells in rat liver
- Author
-
Ogi, M., Yokomori, Hiroaki, Oda, Masaya, Yoshimura, Kazunori, Nomura, Masahiko, Ohshima, Susumu, Akita, Masumi, Toda, Kyoko, and Ishii, Hiromasa
- Published
- 2003
- Full Text
- View/download PDF
5. Expression of plasma membrane Ca2+-ATPase on hepatic sinusoidal endothelial fenestrae: modification of the one-step method
- Author
-
Ogi, M., Yokomori, Hiroaki, Kamegaya, Yoshitaka, Oda, Masaya, and Ishii, Hiromasa
- Published
- 2000
- Full Text
- View/download PDF
6. Optical microcantilever consisting of channel waveguide for scanning near-field optical microscopy controlled by atomic force
- Author
-
NIWA, T., MITSUOKA, Y., KATO, K., ICHIHARA, S., CHIBA, N., SHIN-OGI, M., NAKAJIMA, K., MURAMATSU, H., and SAKUHARA, T.
- Published
- 1999
7. Magnetic Properties of Simultaneously Excited Amorphous and Silicon Steel Hybrid-Cores for Higher-Efficiency Distribution Transformers
- Author
-
Kurita, N., primary, Nishimizu, A., additional, Kobayashi, C., additional, Tanaka, Y., additional, Yamagishi, A., additional, Ogi, M., additional, Takahashi, K., additional, and Kuwabara, M., additional
- Published
- 2018
- Full Text
- View/download PDF
8. Abiraterone acetate (AA) + prednisolone (P) for metastatic castration-resistant prostate cancer (mCRPC) with early progression or non-response to androgen deprivation therapy (ADT)
- Author
-
Arai, G., primary, Ogi, M., additional, Kobayashi, K., additional, Okuno, N., additional, Takahara, T., additional, Fukushima, K., additional, and Yoshizawa, K., additional
- Published
- 2017
- Full Text
- View/download PDF
9. Survey of period variations of superhumps in SU UMa-type dwarf novae. VII. the seventh year (2014-2015)
- Author
-
Kato T., Hambsch F., Dubovsky P., Kudzej I., Monard B., Miller I., Itoh H., Kiyota S., Masumoto K., Fukushima D., Kinoshita H., Maeda K., Mikami J., Matsuda R., Kojiguchi N., Kawabata M., Takenaka M., Matsumoto K., De Miguel E., Maeda Y., Ohshima T., Isogai K., Pickard R., Henden A., Kafka S., Akazawa H., Otani N., Ishibashi S., Ogi M., Tanabe K., Imamura K., Stein W., Kasai K., Vanmunster T., Starr P., Oksanen A., Pavlenko E., Antonyuk O., Antonyuk K., Sosnovskij A., Pit N., Babina J., Sklyanov A., Novák R., Dvorak S., Michel R., Masi G., Littlefield C., Ulowetz J., Shugarov S., Golysheva P., Chochol D., Krushevska V., Ruiz J., Tordai T., Morelle E., Sabo R., Maehara H., Richmond M., Katysheva N., Hirosawa K., Goff W., Dubois F., Logie L., Rau S., Voloshina I., Andreev M., Shiokawa K., Neustroev V., Sjoberg G., Zharikov S., James N., Bolt G., Crawford T., Buczynski D., Cook L., Kochanek C., Shappee B., Stanek K., Prieto J., Denisenko D., Nishimura H., Mukai M., Kaneko S., Ueda S., Stubbings R., Moriyama M., Schmeer P., and Muyllaert E.
- Subjects
accretion, accretion disks ,novae, cataclysmic variables ,dwarf novae [stars] - Abstract
© The Author 2015. Published by Oxford University Press on behalf of the Astronomical Society of Japan. All rights reserved. Continuing the project described by Kato et al. (2009, PASJ, 61, S395), we collected times of superhump maxima for 102 SU UMa-type dwarf novae, observed mainly during the 2014-2015 season, and characterized these objects. Our project has greatly improved the statistics of the distribution of orbital periods, which is a good approximation of the distribution of cataclysmic variables at the terminal evolutionary stage, and has confirmed the presence of a period minimum at a period of 0.053 d and a period spike just above this period. The number density monotonically decreased toward the longer period and there was no strong indication of a period gap. We detected possible negative superhumps in Z Cha. It is possible that normal outbursts are also suppressed by the presence of a disk tilt in this system. There was no indication of enhanced orbital humps just preceding the superoutburst, and this result favors the thermal-tidal disk instability as the origin of superoutbursts. We detected superhumps in three AM CVn-type dwarf novae. Our observations and recent other detections suggest that 8% of objects showing dwarf nova-type outbursts are AM CVn-type objects. AM CVn-type objects and EI Psc-type objects may be more abundant than previously recognized. OT J213806, a WZ Sge-type object, exhibited remarkably different features between the 2010 and 2014 superoutbursts. Although the 2014 superoutburst was much fainter, the plateau phase was shorter than the 2010 one, and the course of the rebrightening phase was similar. This object indicates that the O - C diagrams of superhumps can indeed be variable, at least in WZ Sge-type objects. Four deeply eclipsing SU UMa-type dwarf novae (ASASSN-13cx, ASASSN-14ag, ASASSN-15bu, and NSV 4618) were identified. We studied long-term trends in supercycles in MM Hya and CY UMa and found systematic variations of supercycles of ∼20%.
- Published
- 2015
10. Is summer sea surface temperature over the Arctic Ocean connected to winter air temperature over North America?
- Author
-
Ogi, M, primary, Rysgaard, S, additional, Barber, DG, additional, Nakamura, T, additional, and Taguchi, B, additional
- Published
- 2016
- Full Text
- View/download PDF
11. Replacement of multiyear sea ice and changes in the open water season duration in the B eaufort S ea since 2004
- Author
-
Galley, R. J., primary, Babb, D., additional, Ogi, M., additional, Else, B. G. T., additional, Geilfus, N.‐X., additional, Crabeck, O., additional, Barber, D. G., additional, and Rysgaard, S., additional
- Published
- 2016
- Full Text
- View/download PDF
12. 789PD - Abiraterone acetate (AA) + prednisolone (P) for metastatic castration-resistant prostate cancer (mCRPC) with early progression or non-response to androgen deprivation therapy (ADT)
- Author
-
Arai, G., Ogi, M., Kobayashi, K., Okuno, N., Takahara, T., Fukushima, K., and Yoshizawa, K.
- Published
- 2017
- Full Text
- View/download PDF
13. Replacement of multiyear sea ice and changes in the open water season duration in the Beaufort Sea since 2004.
- Author
-
Galley, R. J., Babb, D., Ogi, M., Else, B. G. T., Geilfus, N.-X., Crabeck, O., Barber, D. G., and Rysgaard, S.
- Published
- 2016
- Full Text
- View/download PDF
14. A single-nucleotide mutation in a gene encoding S-adenosylmethionine synthetase is associated with methionine over-accumulation phenotype in Arabidopsis thaliana
- Author
-
Goto, D.B., Ogi, M., Kijima, F., Kumagai, T., van Werven, F., Onouchi, H., Naito, S., Goto, D.B., Ogi, M., Kijima, F., Kumagai, T., van Werven, F., Onouchi, H., and Naito, S.
- Abstract
Met-overaccumulating mutants provide a powerful genetic tool for examining both the regulation of the Met biosynthetic pathway and in vivo developmental responses of gene expression to altered Met levels. We have previously reported the identification of two Arabidopsis thaliana Met over-accumulation (mto) mutants, mto1-1 and mto2-1, that carry mutations in the genes encoding cystathionine γ-synthase (CGS) and threonine synthase (TS), respectively. A third mutant, mto3-1, has recently been reported to carry a mutation in the gene encoding S-adenosylmethionine synthetase 3 (SAMS3). Here, we report the isolation of a new ethionine-resistant A. thaliana mutant that over-accumulates soluble Met approximately 20-fold in young rosettes. The causal mutation was determined to be a single, recessive mutation that was mapped to chromosome 3. Sequence analysis identified a single nucleotide change in the gene encoding SAMS3 that was distinct from the mto3-1 mutation and altered the amino acid sequence of the enzyme active site. This mutation was therefore referred to as mto3-2. Although Met over-accumulation in the mto3-2 mutant was similar to that in the mto2-1 mutant, CGS mRNA levels did not respond to the mto3-2 mutation and were similar to that in equivalent wild-type plants.
- Published
- 2002
15. Atorvastatin in the treatment of nonalcoholic steatohepatitis
- Author
-
Hyogo, H, primary, Iwamoto, K, additional, Arihiro, K, additional, Ajima, T, additional, Ishitobi, T, additional, Inoue, M, additional, Ogi, M, additional, Nabeshima, Y, additional, Nonaka, M, additional, Komichi, D, additional, Kobuke, T, additional, Yamaguchi, A, additional, Numata, Y, additional, Nishioka, T, additional, Chayama, K, additional, and Tazuma, S, additional
- Published
- 2005
- Full Text
- View/download PDF
16. Expression of plasma membrane Ca 2+ -ATPase on hepatic sinusoidal endothelial fenestrae: modification of the one-step method
- Author
-
Ogi, M., primary, Yokomori, Hiroaki, additional, Kamegaya, Yoshitaka, additional, Oda, Masaya, additional, and Ishii, Hiromasa, additional
- Published
- 2000
- Full Text
- View/download PDF
17. Acute renal failure in accidental hypothermia of cold water immersion
- Author
-
Yoshitomi, Y, primary, Kojima, S, additional, Ogi, M, additional, and Kuramochi, M, additional
- Published
- 1998
- Full Text
- View/download PDF
18. Expressions of endothelin receptor subtype proteins and mRNA in human liver
- Author
-
Yokomori, H., primary, Oda, M., additional, Yasogawa, Y., additional, Kamegaya, Y., additional, Yokono, H., additional, Ogi, M., additional, Nakamura, M., additional, Tsukada, N., additional, and Ishii, H., additional
- Published
- 1998
- Full Text
- View/download PDF
19. Effect of postural change on urine volume and urinary sodium excretion in diabetic nephropathy
- Author
-
Ogi, M, primary, Kojima, S, additional, and Kuramochi, M, additional
- Published
- 1998
- Full Text
- View/download PDF
20. Changes in Bradykinin and Prostaglandins Plasma Levels during Dextran-sulfate Low-density-lipoprotein Apheresis
- Author
-
Kojima, S., primary, Ogi, M., additional, Yoshitomi, Y., additional, Kuramochi, M., additional, Ikeda, J., additional, Naganawa, M., additional, and Hatakeyama, H., additional
- Published
- 1997
- Full Text
- View/download PDF
21. A novel structure of a piezoresistive accelerometer with lateral detection using precise fabrication techniques.
- Author
-
Shin-ogi, M., Kato, K., Mandai, M., and Saitoh, Y.
- Published
- 1996
- Full Text
- View/download PDF
22. What is it so stressful about caring for a dying patient? A qualitative study of nurses' experiences.
- Author
-
Peterson, J., Johnson, M., Halvorsen, B., Apmann, L., Chang, P.-C., Kershek, S., Scherr, C., Ogi, M., and Pincon, D.
- Subjects
TERMINAL care ,JOB stress ,PSYCHOLOGICAL burnout ,DEATH ,TERMINALLY ill ,NURSING ,QUALITATIVE research - Abstract
The nursing shortage continues to be a problem in the United States, in part, owing to the experience of stress and burnout by practicing nurses. With an ageing population, the stress of caring for dying patients and their families is one reason for the high levels of stress and burnout. Although we know that caring for dying patients is stressful for nurses, there is little information about the specific aspects of that experience that concern them. In order to alleviate the stress and to help nurses cope more effectively with this situation, this research examined the aspects of caring for a dying patient that cause concern for nurses. This study used a grounded theory approach to examine the experiences of nurses and their particular concerns about caring for a dying patient. Nurses expressed personal concerns, concerns about the patient and their families, which include communication challenges with both patients and families. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
23. Hepatic stellate cells express Ca2+ pump-ATPase and Ca2+-Mg2+-ATPase in plasma membrane of caveolae.
- Author
-
Ogi, M, Yokomori, H, Inao, M, Oda, M, and Ishii, H
- Abstract
Intracytoplasmic free calcium ions (Ca2+) are maintained at a very low concentration in mammalian tissue by the extrusion of Ca2+ across a steep extracellular Ca2+ gradient, mainly through the activity of plasma membrane Ca2+ pump-ATPase. The present study aimed to identify, by electron cytochemical and electron immunogold methods, the ultrastructural localizations of two types of plasma membrane Ca2+-ATPase; Ca2+-Mg2+-ATPase and Ca2+ pump-ATPase, in hepatic stellate cells. Liver tissues and isolated hepatic stellate cells (HSCs) were studied. The ultrastructural localization of Ca2+-Mg2+-ATPase activity was examined by the electron cytochemical method of Ando. The localization of Ca2+ pump-ATPase was identified by immunofluorescence. The ultrastructural localization of Ca2+ pump-ATPase was identified by the electron immunogold method. The cytochemical reaction products of Ca2+-Mg2+-ATPase activity were localized on the outer (cavity) side of the plasma membrane of caveolae. Immunofluorescence of Ca2+ pump-ATPase was seen as small dots along the cell edge in HSCs. Immunogold particles indicating the presence of Ca2+ pump-ATPase were identified on the inner (cytoplasmic) side of the plasma membrane of caveolae. We localized Ca2+ pump-ATPase on the inner side of the plasma membrane caveolae and Ca2+-Mg2+-ATPase on the outer leaflet of the caveolar plasma membrane in stellate cells, suggesting that Ca2+ pump-ATPase may play a key role in the Ca2+ reflux. [ABSTRACT FROM AUTHOR]
- Published
- 2000
- Full Text
- View/download PDF
24. Expression of plasma membrane Ca2+-ATPase on hepatic sinusoidal endothelial fenestrae: modification of the one-step method.
- Author
-
Ogi, M., Yokomori, Hiroaki, Kamegaya, Yoshitaka, Oda, Masaya, and Ishii, Hiromasa
- Abstract
The intracytoplasmic free calcium ion (Ca
2+ ) concentration is maintained at a low level in mammalian tissues by extruding Ca2+ against a high extracellular Ca2+ concentration, mainly through the activity of the plasma membrane Ca2+ -ATPase pump. The objective of the present study was to localize the plasma membrane Ca2+ -ATPase activity on hepatic sinusoidal endothelial cells (SECs) by electron microscopic cytochemistry. The ultrastructural localization of Ca2+ -ATPase activity on ultrathin sections of liver tissue and cultured SEC monolayer was examined by the electron microscopic cytochemical method of Ando (method A: original method) and by our modified method (method B: shortened fixation method). By method A, scanty cytochemical reaction products of Ca2+ -ATPase were found in the SECs. By method B, Ca2+ -ATPase activity was clearly localized on the outer surface of the plasma membrane of sinusoidal endothelial fenestrae (SEF). Our modification of Ando's method by shortening the incubation time of liver tissue or isolated SEC sections in the substrate allowed clear demonstration of Ca2+ -ATPase activity on the SEF membrane. Use of tangential sections of primary cultures of SEC provided excellent localization results. The cytochemically reactive Ca2+ -ATPase expressed on the SEF plasma membrane may be involved in regulation of the intracytoplasmic Ca2+ concentration. [ABSTRACT FROM AUTHOR]- Published
- 2000
- Full Text
- View/download PDF
25. Differences in perinatal complications and serum hormone levels due to uterine endometrial preparation methods in frozen-thawed embryo transfer.
- Author
-
Yoshihara T, Okuda Y, Ogi M, Miyashita D, and Yoshino O
- Subjects
- Humans, Female, Pregnancy, Adult, Retrospective Studies, Progesterone blood, Postpartum Hemorrhage blood, Postpartum Hemorrhage etiology, Placenta Accreta blood, Embryo Transfer methods, Embryo Transfer adverse effects, Estradiol blood, Endometrium, Cryopreservation
- Abstract
Aim: In frozen-thawed embryo transfer (FET), differences in endometrial preparation methods affect the incidence of perinatal complications. However, the underlying causes are unclear. We aimed to investigate whether serum E2, P4 levels are associated with perinatal complications., Methods: This is a retrospective cohort study, involving 306 successful FET pregnancies from 2017 to 2022. Participants were divided into Natural Cycle (NC) and Hormone Replacement Cycle (HRC) group. We compared serum hormone levels, maternal backgrounds, and perinatal outcomes and complications. Furthermore, within the HRC group, serum hormone levels were compared for perinatal complications previously reported to show differences in incidence rates depending on the method of endometrial preparation., Results: HRC exhibited significantly higher serum E2 levels during the implantation period, but lower P4 levels during ovulation, implantation, and pregnancy test period compared with NC. HRC also had significantly higher rates of postpartum hemorrhage (PPH) and placenta accreta spectrum (PAS). There was no association found between perinatal complications more likely to occur in HRC and serum E2, P4 levels., Conclusions: In HRC, there were more occurrences of PPH and PAS. Although serum E2, P4 levels during FET did not correlate with perinatal complications., (© 2024 Japan Society of Obstetrics and Gynecology.)
- Published
- 2024
- Full Text
- View/download PDF
26. Real-world evidence of systemic treatment practices for biliary tract cancer in Japan: Results of a database study.
- Author
-
Ueno M, Shirakawa S, Tokumaru J, Ogi M, Nishida K, Hirai T, Shinozaki K, Hamada Y, Kitagawa H, and Horiguchi A
- Subjects
- Humans, Male, Female, Aged, Japan, Middle Aged, Deoxycytidine analogs & derivatives, Deoxycytidine therapeutic use, Deoxycytidine administration & dosage, Gemcitabine, Tegafur administration & dosage, Tegafur therapeutic use, Retrospective Studies, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Drug Combinations, Cisplatin therapeutic use, Cisplatin administration & dosage, Oxonic Acid administration & dosage, Oxonic Acid therapeutic use, Practice Patterns, Physicians' statistics & numerical data, Biliary Tract Neoplasms drug therapy, Databases, Factual
- Abstract
Purpose: To describe the real-world treatment patterns of systemic therapies for biliary tract cancer (BTC) and to examine the frequency and management of biliary infection in Japan., Methods: Patients diagnosed with BTC and prescribed systemic therapy between January 2011 and September 2020 were retrieved from the Japanese Medical Data Vision database. The look-back period was set to 5 years. Patient characteristics, treatment patterns, and biliary infection-induced treatment interruption were analyzed., Results: The full analysis set comprised 22 742 patients with a mean age of 71.0 years and 61.6% were male. The most common BTC type was extrahepatic cholangiocarcinoma (44.6%). The three most common first-line regimens were S-1 monotherapy (33.0%), gemcitabine+cisplatin (32.5%), and gemcitabine monotherapy (18.7%) over the entire observation period (January 2011-September 2021). Patients who received monotherapies tended to be older. Biliary infection-induced treatment interruption occurred in 29.5% of patients, with a median time to onset of 64.0 (interquartile range 29.0-145.0) days. The median duration of intravenous antibiotics was 12.0 (interquartile range 4.0-92.0) days., Conclusions: These results demonstrated potential challenges of BTC in Japanese clinical practice particularly use of multiple regimens, commonly monotherapies, which are not recommended as first-line treatment, and the management of biliary infections during systemic therapy., (© 2024 The Authors. Journal of Hepato‐Biliary‐Pancreatic Sciences published by John Wiley & Sons Australia, Ltd on behalf of Japanese Society of Hepato‐Biliary‐Pancreatic Surgery.)
- Published
- 2024
- Full Text
- View/download PDF
27. Changes in CT values of wood in the body: pitfalls in detecting a wooden foreign body.
- Author
-
Shiraki Y, Takahashi T, Ogi M, and Horii A
- Subjects
- Humans, Wood, Tomography, X-Ray Computed, Foreign Bodies diagnostic imaging, Foreign Bodies surgery, Eye Foreign Bodies diagnosis
- Abstract
Competing Interests: Competing interests: None declared.
- Published
- 2024
- Full Text
- View/download PDF
28. Validation of fatty liver index as a predictor of hepatic steatosis in Asian populations: Impact of alcohol consumption and sex.
- Author
-
Nomura T, Ono M, Kobayashi K, Akaiwa Y, Ayaki M, Ogi T, Ogi M, Takahashi H, Ishikawa K, Morishita A, Kobara H, and Masaki T
- Abstract
Aim: This study was undertaken to investigate the utility of the fatty liver index (FLI) as a noninvasive tool for predicting hepatic steatosis based on alcohol consumption and sex in a large Asian population., Methods: We carried out a single-center observational cohort study at the HITO Medical Center in Japan and enrolled 1976 Asian subjects. The subjects were categorized into nondrinkers and light drinkers (0-19 g/day) and moderate drinkers (20-59 g/day) based on their self-reported alcohol intake. We used physical examinations, laboratory tests, and a questionnaire to collect information on various factors related to the FLI, including body mass index, waist circumference, and levels of γ-glutamyl transferase and triglycerides., Results: The diagnostic accuracy of the FLI was assessed by calculating the area under the receiver operating characteristic curve (AUROC), and optimal cut-off values were determined using Youden's index. The FLI had an acceptable performance index of >0.7 both overall and in all subgroups, with an overall AUROC of 0.844. The AUROCs were higher in women and moderate drinkers of both sexes. We also compared the cut-off values obtained in the present study with the previously reported values of 30 and 60. Optimal cut-off values for the FLI were calculated for the total population and subgroups and were found to differ from the previously established values in other countries., Conclusions: Our study suggests that the FLI is a useful noninvasive marker for predicting hepatic steatosis in a large Asian population, irrespective of alcohol consumption and sex., (© 2023 Japan Society of Hepatology.)
- Published
- 2023
- Full Text
- View/download PDF
29. Oral Iron Absorption of Ferric Citrate Hydrate and Hepcidin-25 in Hemodialysis Patients: A Prospective, Multicenter, Observational Riona-Oral Iron Absorption Trial.
- Author
-
Tomosugi N, Koshino Y, Ogawa C, Maeda K, Shimada N, Tomita K, Daimon S, Shikano T, Ryu K, Takatani T, Sakamoto K, Ueyama S, Nagasaku D, Nakamura M, Ra S, Nishimura M, Takagi C, Ishii Y, Kudo N, Takechi S, Ishizu T, Yanagawa T, Fukuda M, Nitta Y, Yamaoka T, Saito T, Imayoshi S, Omata M, Oshima J, Onozaki A, Ichihashi H, Matsushima Y, Takae H, Nakazawa R, Ikeda K, Tsuboi M, Konishi K, Kato S, Ooura M, Koyama M, Naganuma T, Ogi M, Katayama S, Okumura T, Kameda S, and Shirai S
- Subjects
- Humans, Ferritins, Iron, Prospective Studies, Renal Dialysis, Ferric Compounds pharmacology, Hepcidins
- Abstract
Oral ferric citrate hydrate (FCH) is effective for iron deficiencies in hemodialysis patients; however, how iron balance in the body affects iron absorption in the intestinal tract remains unclear. This prospective observational study (Riona-Oral Iron Absorption Trial, R-OIAT, UMIN 000031406) was conducted at 42 hemodialysis centers in Japan, wherein 268 hemodialysis patients without inflammation were enrolled and treated with a fixed amount of FCH for 6 months. We assessed the predictive value of hepcidin-25 for iron absorption and iron shift between ferritin (FTN) and red blood cells (RBCs) following FCH therapy. Serum iron changes at 2 h (ΔFe2h) after FCH ingestion were evaluated as iron absorption. The primary outcome was the quantitative delineation of iron variables with respect to ΔFe2h, and the secondary outcome was the description of the predictors of the body's iron balance. Generalized estimating equations (GEEs) were used to identify the determinants of iron absorption during each phase of FCH treatment. ΔFe2h increased when hepcidin-25 and TSAT decreased (-0.459, -0.643 to -0.276, p = 0.000; -0.648, -1.099 to -0.197, p = 0.005, respectively) in GEEs. FTN increased when RBCs decreased (-1.392, -1.749 to -1.035, p = 0.000) and hepcidin-25 increased (0.297, 0.239 to 0.355, p = 0.000). Limiting erythropoiesis to maintain hemoglobin levels induces RBC reduction in hemodialysis patients, resulting in increased hepcidin-25 and FTN levels. Hepcidin-25 production may prompt an iron shift from RBC iron to FTN iron, inhibiting iron absorption even with continued FCH intake.
- Published
- 2023
- Full Text
- View/download PDF
30. Vertical Transmission of Coxsackievirus A6 with Severe Congenital Pneumonia/Sepsis.
- Author
-
Nakasone R, Ogi M, Kawamura A, Miyake O, Kido T, Abe S, Takahashi N, Nozu K, and Fujioka K
- Subjects
- Humans, Infant, Infant, Newborn, Female, Male, Phylogeny, Mothers, Antibodies, Viral, Hand, Foot and Mouth Disease, Enterovirus, Sepsis, Pneumonia
- Abstract
We report a case of vertical transmission of Coxsackievirus (CV)-A6 with severe congenital pneumonia/sepsis. A male infant presented with severe respiratory symptoms at birth and was treated with full cardiopulmonary support, including inhaled nitric oxide. Three days before delivery, his older brother was diagnosed with hand, foot, and mouth disease (HFMD). His mother developed transient fever 1 day before delivery and presented a blister on her thumb 2 days after delivery. A multiplex polymerase chain reaction test on day 2 was positive for human rhinovirus/enterovirus. CV-A6 was later detected in the serum, tracheal aspirate, and stool of the patient sampled on day 6, and in the maternal serum sampled on the day of delivery. He was diagnosed with congenital CV-A6 pneumonia/sepsis caused by vertical transmission, based on VP1 consensus sequences used for typing of the virus that demonstrated a 100% match between the mother and infant. Further, the strain was closely related to the lethal CV-A6-Changchun strains in the phylogenetic analysis of the P2 region, which contributes to the pathogenicity. In conclusion, congenital CV-A6 infection should be considered if a woman exhibits HFMD symptoms during the perinatal period. Detailed virologic examination is useful for understanding its pathogenesis.
- Published
- 2023
- Full Text
- View/download PDF
31. A comparison of the utility of the urine dipstick and urine protein-to-creatinine ratio for predicting microalbuminuria in patients with non-diabetic lifestyle-related diseases -a comparison with diabetes.
- Author
-
Ogi M, Seto T, and Wakabayashi Y
- Subjects
- Humans, Adolescent, Aged, Creatinine urine, Proteinuria diagnosis, Proteinuria urine, Life Style, Albuminuria diagnosis, Albuminuria urine, Diabetes Mellitus
- Abstract
Background: The utility of dipstick proteinuria for predicting microalbuminuria in non-diabetic lifestyle-related diseases compared with the urine protein-to-creatinine ratio (uPCR) and the effect of dipstick proteinuria on the cut-off value (CO) and accuracy of uPCR are unclear., Methods: The subjects included Japanese patients ≥ 18 years old with lifestyle-related diseases who had an estimated glomerular filtration rate of ≥ 15 ml/min/1.73 m
2 and uPCR of < 0.5 g/gCr at initiation. Urine dipstick, uPCR and urine albumin-to-creatinine ratio (uACR) were measured three times per case. Microalbuminuria was defined as uACR of 30-299 mg/gCr for at least 2 of 3 measurements. Youden's Index was used as the optimal CO. Factors associated with microalbuminuria were analyzed using a logistic regression model., Results: In 313 non-diabetic cases (median 70.8 years old), 3 dipstick proteinuria measurements were independently useful for detecting microalbuminuria, and the CO was set when a trace finding was obtained at least 1 of 3 times (sensitivity 0.56, specificity 0.80, positive predictive value [PPV] 0.73, negative predictive value [NPV] 0.65). A single uPCR measurement was more useful than 3 dipstick measurements, and was useful for detecting microalbuminuria even in cases with three consecutive negative proteinuria findings, indicating that the CO of the second uPCR with G1-3a (n = 136) was 0.06 g/gCr (sensitivity 0.76, specificity 0.84. PPV 0.68, NPV 0.89), while that with G3-b4 (n = 59) was 0.10 g/gCr (sensitivity 0.56, specificity 0.91. PPV 0.83, NPV 0.71). The sum of 3 uPCRs was useful for detecting microalbuminuria in cases with G1-3a (sensitivity 0.67, specificity 0.94, PPV 0.82, NPV 0.86) and G3b-4 (sensitivity 0.78, specificity 0.94, PPV 0.91 NPV 0.83), with both COs being 0.23 g/gCr. These COs of microalbuminuria did not change when trace or more proteinuria was included, although the sensitivity increased. A high uPCR and low urine specific gravity or creatinine level were independent factors for uACR ≥ 30 mg/gCr in cases with negative proteinuria, although the uPCR was a major predictive factor of a uACR ≥ 30 mg/gCr., Conclusions: The uPCR (preferably determined using early-morning urine), including in dipstick-negative proteinuria cases with non-diabetic lifestyle-related diseases, can aid in the early detection of microalbuminuria., Trial Registration: Retrospectively registered., (© 2022. The Author(s).)- Published
- 2022
- Full Text
- View/download PDF
32. Lemierre's Syndrome Due to Malignant Otitis Externa: Imaging Studies Revealed Its Systemic Dissemination.
- Author
-
Ogi M, Takahashi K, Morita Y, and Horii A
- Subjects
- Humans, Jugular Veins diagnostic imaging, Male, Middle Aged, Tomography, X-Ray Computed, Lemierre Syndrome complications, Lemierre Syndrome diagnosis, Lemierre Syndrome drug therapy, Otitis Externa complications, Venous Thrombosis
- Abstract
Lemierre's syndrome is characterized by internal jugular vein thrombosis and systemic septic embolism; it is a fatal complication of upper respiratory tract infections. To date, it has not been demonstrated how the upper respiratory tract inflammation spreads from the primary infection site to internal jugular vein and systemic thrombosis. We report a very rare case of Lemierre's syndrome derived from malignant otitis externa in which the spread of infection and thrombosis process were identified by imaging. A 61-year-old man with severe diabetes mellitus visited our hospital with consciousness disturbance and right posterior neck pain. He complained of right ear pain and otorrhea several days prior to the neck pain. Contrast-enhanced computed tomography demonstrated thrombosis in internal jugular vein and multiple lung abscesses. Temporal bone images revealed continuous lesions from skull base osteomyelitis to suboccipital abscess and sigmoid sinus thrombosis. We diagnosed the patient as having Lemierre's syndrome secondary to skull base osteomyelitis following malignant otitis externa. The patient clinically recovered with a combination of drainage of suboccipital abscess and long-term administration of antibiotics, which is the standard treatment of malignant otitis externa. Considering the details of imaging and bacterial examination is very useful for understanding the pathophysiology and determining appropriate treatment in Lemierre's syndrome pathophysiology and determining appropriate treatment in Lemierre's syndrome.
- Published
- 2021
- Full Text
- View/download PDF
33. Optimal Diagnostic Criteria and a Staging System for Otogenic Skull Base Osteomyelitis.
- Author
-
Takahashi K, Morita Y, Ogi M, Nonomura Y, Kitazawa M, Yagi C, Yamagishi T, Ohshima S, Izumi S, and Horii A
- Abstract
Objective Diagnostic criteria for otogenic skull base osteomyelitis (SBO) have been conflicting among researchers. We aimed to propose clinically useful diagnostic criteria and a staging system for otogenic SBO that is associated with infection control and mortality. Design The present study is designed as a retrospective one. Setting This study was conducted at the University Hospital. Participants Thirteen patients with otogenic SBO who met the novel rigorous diagnostic criteria consisted of symptomatic and radiological signs on high-resolution computed tomography (HRCT) and magnetic resonance imaging (MRI). Simple refractory external otitis was not included. A staging system according to disease extent revealed by HRCT and MRI is proposed: lesions limited to the temporal bone (stage 1), extending to less than half (stage 2), exceeding the midline (stage 3), and extending to the whole of the clivus (stage 4). All patients received long-term antibiotic therapy. Patients were divided into infection-uncontrolled or -controlled groups based on symptoms, otoscopic findings, and C-reactive protein level at the last follow-up. The mean follow-up period was 27.7 months. Main Outcome Measures Possible prognostic factors, such as immunocompromised status and symptoms, including cranial nerve palsy, pretreatment laboratory data, and treatments, were compared between the infection-uncontrolled and -controlled groups. Disease stages were correlated with infection control and mortality. Results The infection-uncontrolled rate and mortality rate were 38.5 and 23.1%, respectively. There were no significant differences in possible prognostic factors between the infection-uncontrolled and -controlled groups. HRCT-based stages significantly correlated with infection control and mortality. Conclusion We proposed here the clinically useful diagnostic criteria and staging systems that can predict infection control and prognosis of otogenic SBO., Competing Interests: Conflict of Interest None declared., (Thieme. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
34. Prediction of microalbuminuria from proteinuria in chronic kidney disease due to non-diabetic lifestyle-related diseases: comparison with diabetes.
- Author
-
Ogi M, Seto T, and Wakabayashi Y
- Subjects
- Aged, Creatinine urine, Female, Humans, Life Style, Male, Middle Aged, Albuminuria urine, Diabetes Complications urine, Renal Insufficiency, Chronic urine
- Abstract
Background: To suppress increases in kidney failure and cardiovascular disease due to lifestyle-related diseases other than diabetes, early intervention is desirable. We examined whether microalbuminuria could be predicted from proteinuria., Methods: The participants consisted of adults who exhibited a urinary protein-to-creatinine ratio (uPCR) of < 0.5 g/gCr and an eGFR of ≥ 15 ml/min/1.73 m
2 in their spot urine at their first examination for lifestyle-related disease. Urine was tested three times for each case, with microalbuminuria defined as a urinary albumin-to-creatinine ratio (uACR) of 30-299 mg/gCr, at least twice on three measurements. Youden's Index was used as an index of the cut-off value (CO) according to the ROC curve., Results: A single uPCR was useful for differentiating normoalbuminuria and micro- and macroalbuminuria in patients with non-diabetic lifestyle-related diseases. Regarding the GFR categories, the CO of the second uPCR was 0.09 g/gCr (AUC 0.89, sensitivity 0.76, specificity 0.89) in G1-4 (n = 197) and 0.07 g/gCr (AUC 0.92, sensitivity 0.85, specificity 0.88) in G1-3a (n = 125). Using the sum of two or three uPCR measurements was more useful than a single uPCR for differentiating microalbuminuria in non-diabetic lifestyle disease [CO, 0.16 g/gCr (AUC 0.91, sensitivity 0.85, specificity 0.87) and 0.23 g/gCr (AUC 0.92, sensitivity 0.88, specificity 0.84), respectively]., Conclusion: Microalbuminuria in Japanese individuals with non-diabetic lifestyle-related diseases can be predicted from the uPCR, wherein the CO of the uPCR that differentiates normoalbuminuria and micro- and macroalbuminuria was 0.07 g/gCr for G1-3a, while that in G3b-4 was 0.09 g/gCr.- Published
- 2021
- Full Text
- View/download PDF
35. Community access to palliative care medicines-patient and professional experience: systematic review and narrative synthesis.
- Author
-
Ogi M, Campling N, Birtwistle J, Richardson A, Bennett MI, Santer M, and Latter S
- Abstract
Background: Providing palliative care patients living at home with timely access to medicines is critical to enable effective symptom management, minimise burden and reduce unplanned use of healthcare services. Little is known about how diverse community-based palliative care models influence medicine access., Objective: To produce a critical overview of research on experiences and outcomes of medicine access in community-based palliative care models of service delivery through a systematic review and narrative synthesis., Methods: MEDLINE, CINAHL, EMBASE, PsycINFO, Cochrane Library databases and grey literature were systematically searched for all types of studies. Study quality was assessed using the Mixed Methods Appraisal Tool; a narrative synthesis was used to integrate and summarise findings., Results: 3331 articles were screened; 10 studies were included in the final sample. Studies included a focus on community pharmacy (n=4), hospice emergency medication kits (HEMKs) in the home (n=3), specialist community nurse prescribers (n=1), general practice (n=1) and one study included multiple service delivery components. Community pharmacy was characterised by access delays due to lack of availability of medicine stock and communication difficulties between the pharmacy and other healthcare professionals. HEMKs were perceived to reduce medicine access time out of hours and speed symptom control. However, the majority of studies comprised small, local samples, largely limited to self-reports of health professionals. There was a lack of data on outcomes, and no comparisons between service delivery models., Conclusions: Further research is required to understand which models facilitate rapid and efficient access to medicines for community-based palliative care patients., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2021
- Full Text
- View/download PDF
36. A case of ovarian stimulation for fertility preservation in a patient with Philadelphia chromosome-positive acute lymphoblastic leukemia after treatment with dasatinib.
- Author
-
Ogawa T, Ogi M, and Hirata S
- Subjects
- Adult, Dasatinib, Female, Humans, Ovulation Induction, Philadelphia Chromosome, Protein Kinase Inhibitors adverse effects, Young Adult, Fertility Preservation, Hematopoietic Stem Cell Transplantation, Precursor Cell Lymphoblastic Leukemia-Lymphoma drug therapy
- Abstract
Tyrosine kinase inhibitors (TKIs) are effective for treating Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ALL). However, the use of TKIs may decrease the number of collected oocytes during fertility preservation procedures. We report the case of a 19-year-old patient with Ph+ALL for whom 21 oocytes were frozen after controlled ovarian stimulation was initiated 2 days after the completion of 28 days of remission induction therapy with dasatinib. After collecting the oocytes, consolidation therapy was initiated immediately, and a hematopoietic stem cell transplant from her younger brother was scheduled. It is believed that a 2-day withdrawal period is sufficient for fertility preservation or that the effect of dasatinib on the number of oocytes obtained is minimal., (© 2021 Japan Society of Obstetrics and Gynecology.)
- Published
- 2021
- Full Text
- View/download PDF
37. Effect of transdermal estrogen dose regimen for endometrial preparation of frozen-thawed embryo transfer on reproductive and obstetric outcomes.
- Author
-
Ogawa T, Kasai T, Ogi M, Fukushima J, and Hirata S
- Abstract
Purpose: Previous studies have reported different methods of estrogen administration during endometrial preparation for frozen-thawed embryo transfer (FET). This study aimed to investigate a beneficial regimen of transdermal estrogen administration for FET., Methods: We investigated the reproductive and obstetric outcomes of FET by comparing the increasing dose (ID) group that mimics changes in serum estradiol during the menstrual cycle and the constant dose (CD) group. Transdermal patches were used for estrogen administration in both groups. In our hospital, we targeted 315 cycles of the ID group in which FET was performed in 2017 and 324 cycles of the CD group in which FET was performed in 2018. In all cases, single embryo transfer was performed., Results: All were singleton pregnancies. There was no difference in clinical pregnancy rate (28.9% vs 28.2%, P =.837) and live birth rate (17.3% vs 21.4%, P =.201) between the ID and CD groups. Spontaneous abortion rate was significantly lower in the CD group than in the ID group (37.2% vs 23.0%, P =.041). There was no difference in obstetrical outcomes., Conclusions: It was considered that the simple CD regimen may be more beneficial than the complicated ID regimen., Competing Interests: Tatsuyuki Ogawa, Tsuyoshi Kasai, Maki Ogi, Jiro Fukushima, and Shuji Hirata declare that they have no conflicts of interest., (© 2021 The Authors. Reproductive Medicine and Biology published by John Wiley & Sons Australia, Ltd on behalf of Japan Society for Reproductive Medicine.)
- Published
- 2021
- Full Text
- View/download PDF
38. Patient-specific 3D-printed Model-assisted Supracochlear Approach to the Petrous Apex.
- Author
-
Takahashi K, Morita Y, Aizawa N, Ogi M, Nonomura Y, Kitazawa M, Yagi C, Ohshima S, Izumi S, Yamagishi T, and Horii A
- Subjects
- Child, Child, Preschool, Cranial Fossa, Middle, Facial Nerve, Humans, Male, Printing, Three-Dimensional, Cholesteatoma, Petrous Bone diagnostic imaging, Petrous Bone surgery
- Abstract
Objective: To present a case of pediatric cholesteatoma that invaded the petrous apex (PA) and discuss the usefulness of preoperative three-dimensional (3D) surgical simulation on a personal computer (PC) and patient-specific 3D printed model-assisted surgery., Patient: A 5-year-old boy with congenital cholesteatoma underwent a planned two-stage canal wall up mastoidectomy. The cholesteatoma had invaded the PA from a small space anterior to the superior semicircular canal (SSCC). During the removal of this lesion in the first surgery, the tip of a 1-mm round knife broke off and fell into the PA. The surgeon could not remove it, as it was thought that opening the space might damage the SSCC and the facial nerve (FN)., Intervention: Before the second surgery, a preoperative 3D surgical simulation on a PC was performed, and an approach to the PA via the triangle surrounded by the SSCC, FN, and middle cranial fossa, namely, the supracochlear approach, was discovered. A patient-specific 3D-printed model, which had been drilled to make each surface of the triangle including the SSCC, FN, and middle cranial fossa visible in the PC simulation surgery, was then created and a 3D-printed model-assisted surgery was planned., Results: By placing the sterilized patient-specific 3D model close to the surgical field, the cholesteatoma and iatrogenic foreign body could be successfully removed from the PA without damaging the important surrounding structures., Conclusions: Preoperative 3D surgical simulations and intraoperative patient-specific 3D-printed model-assisted surgeries are new, powerful tools that aid in performing challenging surgeries on temporal bones.
- Published
- 2020
- Full Text
- View/download PDF
39. Traumatic Nonmissile Penetrating Transnasal Anterior Skull Base Fracture and Brain Injury with Cerebrospinal Fluid Leak: Intraoperative Leak Detection and an Effective Reconstruction Procedure for a Localized Skull Base Defect Especially After Coronavirus Disease 2019 Outbreak.
- Author
-
Yoneoka Y, Aizawa N, Nonomura Y, Ogi M, Seki Y, and Akiyama K
- Subjects
- Aged, COVID-19, Humans, Male, Nasal Cavity surgery, Nasal Cavity virology, Plastic Surgery Procedures methods, SARS-CoV-2, Betacoronavirus pathogenicity, Brain Injuries surgery, Cerebrospinal Fluid Leak etiology, Coronavirus Infections, Pandemics, Pneumonia, Viral, Skull Base surgery, Skull Fractures surgery
- Abstract
Background: Cerebrospinal fluid (CSF) leakage after penetrating skull base injury is relatively rare compared with close head injuries involving skull base fractures., Case Description: We report the case of a 65-year-old man who had presented with epistaxis and serous rhinorrhea. When he had fallen to the ground near his bee boxes, a garden pole had poked into his right nostril. He had instantly removed the pole from his nostril himself. However, immediately after removal of the pole, he had developed nasal bleeding and serous rhinorrhea. He then drove to our emergency room. Computed tomography showed pneumocephalus with a minor cerebral contusion in the left frontal lobe and a penetrating injury in the left anterior skull base. His CSF leakage had not resolve spontaneously within 1 week after the injury with strict bed rest. We repaired the CSF leakage using a fat (adipose tissue)-on-fascia autograft plug and caulked the defect in the anterior skull base with the fat-on-fascia graft (FFG) plug through the left nostril with endoscopic guidance. The CSF rhinorrhea was successfully controlled. Intranasal local application of fluorescein aided in the detection of the direction of flow of the CSF leakage., Conclusions: Endonasal endoscopic caulking of a skull base defect using an FFG plug can be useful to treat CSF leakage due to the localized skull base defect, especially in the coronavirus disease 2019 pandemic. It is simple, inexpensive, and timesaving. It requires no special skills nor sophisticated instruments that can cause aerosolization, reducing the risk of infection during the surgery., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
40. Pediatric Infections by Human mastadenovirus C Types 2, 89, and a Recombinant Type Detected in Japan between 2011 and 2018.
- Author
-
Takahashi K, Gonzalez G, Kobayashi M, Hanaoka N, Carr MJ, Konagaya M, Nojiri N, Ogi M, and Fujimoto T
- Subjects
- Adenovirus Infections, Human history, Adenoviruses, Human isolation & purification, Child, Child, Preschool, DNA, Viral, Female, Genome, Viral, Genomics methods, History, 21st Century, Humans, Infant, Japan epidemiology, Open Reading Frames, Phylogeny, Sequence Analysis, DNA, Adenovirus Infections, Human epidemiology, Adenovirus Infections, Human virology, Adenoviruses, Human classification, Adenoviruses, Human genetics, Genotype, Recombination, Genetic
- Abstract
Between 2011 and 2018, 518 respiratory adenovirus infections were diagnosed in a pediatric clinic in Shizuoka, Japan. Detection and typing were performed by partial sequencing of both hexon- and fiber-coding regions which identified: adenovirus type 1 (Ad-1, n = 85), Ad-2 ( n = 160), Ad-3 ( n = 193), Ad-4 ( n = 18), Ad-5 ( n = 27), Ad-11 ( n = 2), Ad-54 ( n = 3), and Ad-56 ( n = 1). Considering previous reports of the circulation of an endemic recombinant Ad-2, e.g., Ad-89, 100 samples typed as Ad-2 were randomly selected for further molecular typing by sequencing the penton base-coding region. Despite the high nucleotide sequence conservation in the penton base- coding region, 27 samples showed 98% identity to Ad-2. Furthermore, 14 samples showed 97.7% identity to Ad-2 and 99.8% identity to Ad-89, while the remaining 13 samples showed an average 98% pairwise identity to other Ad-C types and clustered with Ad-5. The samples typed as Ad-89 ( n = 14) and as a recombinant Ad type (P5H2F2) ( n = 13) represented 27% of cases originally diagnosed as Ad-2, and were detected sporadically. Therefore, two previously uncharacterized types in Japan, Ad-89 and a recombinant Ad-C, were shown to circulate in children. This study creates a precedent to evaluate the epidemiology and divergence among Ad-C types by comprehensively considering the type classification of adenoviruses., Competing Interests: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
- Published
- 2019
- Full Text
- View/download PDF
41. Associative responses to visual shape stimuli in the mouse auditory cortex.
- Author
-
Ogi M, Yamagishi T, Tsukano H, Nishio N, Hishida R, Takahashi K, Horii A, and Shibuki K
- Subjects
- Animals, Auditory Perception physiology, Male, Mice, Inbred C57BL, Photic Stimulation, Auditory Cortex physiology, Form Perception physiology, Visual Perception physiology
- Abstract
Humans can recall various aspects of a characteristic sound as a whole when they see a visual shape stimulus that has been intimately associated with the sound. In subjects with audio-visual associative memory, auditory responses that code the associated sound may be induced in the auditory cortex in response to presentation of the associated visual shape stimulus. To test this possibility, mice were pre-exposed to a combination of an artificial sound mimicking a cat's "meow" and a visual shape stimulus of concentric circles or stars for more than two weeks, since such passive exposure is known to be sufficient for inducing audio-visual associative memory in mice. After the exposure, we anesthetized the mice, and presented them with the associated visual shape stimulus. We found that associative responses in the auditory cortex were induced in response to the visual stimulus. The associative auditory responses were observed when complex sounds such as "meow" were used for formation of audio-visual associative memory, but not when a pure tone was used. These results suggest that associative auditory responses in the auditory cortex represent the characteristics of the complex sound stimulus as a whole., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2019
- Full Text
- View/download PDF
42. Otosclerosis: anatomical distribution of otosclerotic loci analyzed by high-resolution computed tomography.
- Author
-
Yagi C, Morita Y, Takahashi K, Ogi M, Oshima S, Yamamoto Y, and Horii A
- Subjects
- Adult, Aged, Bone Conduction, Cochlea diagnostic imaging, Cochlea pathology, Correlation of Data, Female, Hearing Loss, Conductive diagnosis, Hearing Loss, Conductive etiology, Humans, Male, Middle Aged, Patient Acuity, Ear, Inner diagnostic imaging, Ear, Inner pathology, Ear, Middle diagnostic imaging, Ear, Middle pathology, Otosclerosis pathology, Otosclerosis physiopathology, Tomography, X-Ray Computed methods
- Abstract
Purpose: To clarify the anatomical distribution of otosclerotic loci in otosclerosis., Methods: Ninety-five patients with surgically confirmed uni- or bilateral otosclerosis were enrolled into the study. Hypodense areas observed in the otic capsule by high-resolution computed tomography (HRCT) were defined as otosclerotic loci. The location and number of lesions were examined, and the probability of lesion overlap and correlation with age/hearing parameters (air and bone conduction threshold, air-bone gaps) were tested., Results: Otosclerotic loci were confirmed by HRCT in 77 out of 115 operated ears. The three commonly affected sites were the anterior part of the oval window (ant-OW), anterior part of the internal auditory canal (ant-IAC), and pericochlear area (PCochA), with lesions detected in 96.1%, 46.8%, and 26.0% of ears, respectively. Only the ant-OW area was affected in 48.1% of the ears; the ant-IAC in 3.9%; and PCochA in none with significant differences (p < 0.01). The ant-OW lesions preferentially overlapped with ant-IAC (44.6%) than PCochA lesions (27.0%) (p < 0.05). Among double sites diseases, triple sites diseases occurred more commonly in the ant-OW + PCochA group (80%) than ant-OW + ant-IAC group (48.5%) (p < 0.05). There was no correlation between a number of lesions and age/hearing parameters., Conclusions: Based on the probability of lesion overlap, otosclerotic lesions may initiate at ant-OW followed by ant-IAC and later PCochA. Although the number of lesions showed no immediate correlation with hearing level or age, anatomical stage of the disease estimated by the location and the number of otosclerotic loci could be useful in predicting the future hearing status.
- Published
- 2019
- Full Text
- View/download PDF
43. Three Severe Cases of Viral Infections with Post-Kidney Transplantation Successfully Confirmed by Polymerase Chain Reaction and Flow Cytometry.
- Author
-
Nakanishi K, Kaito H, Ogi M, Takai D, Fujimura J, Horinouchi T, Yamamura T, Minamikawa S, Ninchoji T, Nozu K, Imadome KI, and Iijima K
- Abstract
Viral infections in patients with post-kidney transplantation are often difficult to diagnose as well as treat. We herein report three cases with severe viral infections after kidney transplantation. All their causative pathogens could be detected promptly by polymerase chain reaction and flow cytometry during the early stages of infection. These examinations would also be of great use to monitor therapeutic responses and disease activity. It is indeed true that no specific treatment is available for most of the viral infections, but we should be aware that some infections, such as Epstein-Barr virus infection, can be treatable with prompt and specific treatment, such as rituximab.
- Published
- 2018
- Full Text
- View/download PDF
44. Characterization of genome sequences and clinical features of coxsackievirus A6 strains collected in Hyogo, Japan in 1999-2013.
- Author
-
Ogi M, Yano Y, Chikahira M, Takai D, Oshibe T, Arashiro T, Hanaoka N, Fujimoto T, and Hayashi Y
- Subjects
- Adolescent, Child, Child, Preschool, Cluster Analysis, Enterovirus genetics, Female, Humans, Infant, Japan, Male, Molecular Epidemiology, Phylogeny, Coxsackievirus Infections pathology, Coxsackievirus Infections virology, Enterovirus classification, Enterovirus isolation & purification, Genome, Viral, Genotype, Sequence Analysis, DNA
- Abstract
Coxsackievirus A6 (CV-A6) is an enterovirus, which is known to cause herpangina. However, since 2009 it has frequently been isolated from children with hand, foot, and mouth disease (HFMD). In Japan, CV-A6 has been linked to HFMD outbreaks in 2011 and 2013. In this study, the full-length genome sequencing of CV-A6 strains were analyzed to identify the association with clinical manifestations. Five thousand six hundred and twelve children with suspected enterovirus infection (0-17 years old) between 1999 and 2013 in Hyogo Prefecture, Japan, were enrolled. Enterovirus infection was confirmed with reverse transcriptase-PCR in 753 children (791 samples), 127 of whom (133 samples) were positive for CV-A6 based on the direct sequencing of the VP4 region. The complete genomes of CV-A6 from 22 positive patients with different clinical manifestations were investigated. A phylogenetic analysis divided these 22 strains into two clusters based on the VP1 region; cluster I contained strains collected in 1999-2009 and mostly related to herpangina, and cluster II contained strains collected in 2011-2013 and related to HFMD outbreak. Based on the full-length polyprotein analysis, the amino acid differences between the strains in cluster I and II were 97.7 ± 0.28%. Amino acid differences were detected in 17 positions within the polyprotein. Strains collected in 1999-2009 and those in 2011-2013 were separately clustered by phylogenetic analysis based on 5'UTR and 3Dpol region, as well as VP1 region. In conclusion, HFMD outbreaks by CV-A6 were recently frequent in Japan and the accumulation of genomic change might be associated with the clinical course., (© 2017 Wiley Periodicals, Inc.)
- Published
- 2017
- Full Text
- View/download PDF
45. A pediatric patient with interstitial pneumonia due to enterovirus D68.
- Author
-
Matsumoto M, Awano H, Ogi M, Tomioka K, Unzaki A, Nishiyama M, Toyoshima D, Taniguchi-Ikeda M, Ishida A, Nagase H, Morioka I, and Iijima K
- Subjects
- Biomarkers blood, Bronchoalveolar Lavage Fluid cytology, Bronchoalveolar Lavage Fluid microbiology, C-Reactive Protein analysis, Child, Preschool, Enterovirus Infections blood, Enterovirus Infections diagnostic imaging, Enterovirus Infections drug therapy, Female, Hospitalization, Humans, Lung Diseases, Interstitial blood, Lung Diseases, Interstitial diagnostic imaging, Mucin-1 blood, Pneumonia, Viral blood, Pneumonia, Viral diagnostic imaging, Pneumonia, Viral drug therapy, Polymerase Chain Reaction, Pulmonary Surfactant-Associated Protein A blood, Pulmonary Surfactant-Associated Protein D blood, Respiration, Artificial, Tomography, X-Ray Computed, Enterovirus D, Human isolation & purification, Enterovirus Infections virology, Glucocorticoids therapeutic use, Lung Diseases, Interstitial drug therapy, Lung Diseases, Interstitial virology, Methylprednisolone therapeutic use, Pneumonia, Viral virology
- Abstract
Enterovirus D68 (EV-D68) infection is associated with upper and lower respiratory tract symptoms such as fever, cough, and wheezing. Pediatric patients with EV-D68 infection easily develop more severe respiratory complications compared to patients infected with other species of enterovirus, and consequently, have a higher rate of hospitalization and admission to intensive care units. Therefore, the clinical picture of respiratory complications associated with EV-D68 infection needs to be elucidated. Here, we report a 4-year-old girl of EV-D68 infection that required artificial respiration management within 24 h from the onset of cold symptoms. The patient was diagnosed with interstitial pneumonia on the basis of chest imaging findings with patchy, funicular and frosted glassy shadows, increased blood markers of surfactant protein-A, surfactant protein-D and sialylated carbohydrate antigen KL-6, and increased neutrophils and lymphocytes in the bronchoalveolar lavage. Steroids showed a remarkable effect in her treatment. Further investigations are needed to confirm the efficacy of steroids for interstitial pneumonia due to EV-D68 infection. As rapid deterioration of respiratory status is observed in EV-D68 infection, the possibility of interstitial pneumonia may be considered., (Copyright © 2016 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
46. A case of lateral sinus insufficiency with acute otitis media: Early surgical intervention for prevention of lateral sinus thrombosis.
- Author
-
Takahashi K, Yamamoto Y, Ogi M, Ohshima S, Morita Y, and Takahashi S
- Subjects
- Acute Disease, Child, Preschool, Early Medical Intervention, Humans, Lateral Sinus Thrombosis etiology, Male, Mastoid surgery, Otitis Media complications, Venous Insufficiency etiology, Lateral Sinus Thrombosis prevention & control, Transverse Sinuses surgery, Venous Insufficiency surgery
- Abstract
Objective: To describe a case of lateral sinus insufficiency, presumably occurring just prior to lateral sinus thrombosis (LST), and to discuss the importance of early surgical intervention and the pathophysiology of full-blown LST., Case Report: A 4-year-old boy developed headaches and vomiting after exhibiting typical symptoms of acute otitis media. Contrast-enhanced CT revealed narrowing of the sigmoid sinus medially by gas and low-density material. We diagnosed the patient with suspected LST and consequently performed mastoidectomy. A large amount of bloody pus was found in the mastoid cavity and below the bony sinus plate. Sigmoid sinus blood flow was completely restored after drainage of the hemorrhagic and purulent material, and the patient recovered fully., Conclusion: Because of the anatomical features of the dural venous sinus, hemorrhage per diapedesis may be strongly associated with the development of LST. In the patient with suspected LST, early diagnosis and surgery prior to the development of intravenous thrombus are key for full recovery from this condition., (Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
47. Low total IgM values and high cytomegalovirus loads in the blood of newborns with symptomatic congenital cytomegalovirus infection.
- Author
-
Kobayashi Y, Morioka I, Koda T, Nakamachi Y, Okazaki Y, Noguchi Y, Ogi M, Chikahira M, Tanimura K, Ebina Y, Funakoshi T, Ohashi M, Iijima K, Inoue N, Kawano S, and Yamada H
- Subjects
- Cytomegalovirus Infections blood, Cytomegalovirus Infections immunology, DNA, Viral urine, Humans, Infant, Newborn, Prospective Studies, Cytomegalovirus Infections congenital, DNA, Viral blood, Immunoglobulin M blood
- Abstract
Aims: Neurological outcomes differ considerably between symptomatic and asymptomatic infants with congenital cytomegalovirus (CMV) infection. Our objective was to characterize laboratory markers in symptomatic newborns in comparison with asymptomatic newborns with congenital CMV infection., Methods: Ten newborns with symptomatic and 13 newborns with asymptomatic congenital CMV infection were included in this 3-year prospective cohort study. Total immunoglobulin M (IgM), CMV-IgM, CMV antigenemia, and CMV-DNA in blood and urine were measured and their positive rates and quantitative values compared between the symptomatic and asymptomatic groups., Results: Fifty percent of newborns in the symptomatic group were positive based on total IgM; this was significantly lower than in the asymptomatic group (100%). Quantitative total IgM values were significantly lower, and there were significantly more copies of CMV-DNA in the blood of symptomatic newborns than in asymptomatic newborns (median values for total IgM: 14 vs. 43 mg/dL and blood CMV-DNA: 3.2×102 vs. 3.5×101 copies/106 white blood cells). CMV-IgM, CMV antigenemia, and urine CMV-DNA did not differ significantly between groups., Conclusion: Low total IgM values and high blood CMV loads were associated with the presence of symptoms in newborns with congenital CMV infection.
- Published
- 2015
- Full Text
- View/download PDF
48. Where do nurses go for help? A qualitative study of coping with death and dying.
- Author
-
Peterson J, Johnson M, Halvorsen B, Apmann L, Chang PC, Kershek S, Scherr C, Ogi M, and Pincon D
- Subjects
- Data Collection, Humans, Qualitative Research, Adaptation, Psychological, Attitude to Death, Nurses psychology
- Abstract
As end-of-life care becomes a more prominent issue in health care, it is important to address the experience from the caregivers' perspective. In order to cope with the stressful experience of caring for a dying patient, nurses need programmes that both help them develop coping strategies and prepare them for caring for dying patients as well as resources to help them cope with the experience once it has happened. Because little is known about the coping habits of nurses facing the death of a patient, research is needed that examines their coping responses to develop more effective resources. This research examines the resources that nurses use when coping with the death of a patient. The results of this research indicate that communication with patients and their families, as well as coworkers, is an integral part of that process.
- Published
- 2010
- Full Text
- View/download PDF
49. Long-term cryopreservation of mouse sperm.
- Author
-
Kaneko T, Yamamura A, Ide Y, Ogi M, Yanagita T, and Nakagata N
- Subjects
- Animals, Cryopreservation methods, Embryo Transfer veterinary, Female, Fertilization in Vitro veterinary, Litter Size, Male, Mice, Phenotype, Pregnancy, Pregnancy Rate, Semen Preservation methods, Time Factors, Cryopreservation veterinary, Fertility, Mice, Inbred Strains, Semen Preservation veterinary, Spermatozoa physiology
- Abstract
The objective was to determine if mouse sperm can maintain their fertilizing ability after being frozen for >10 y and whether the offspring derived from these sperm had normal fertilizing ability and phenotype. We cryopreserved sperm from six strains of mice (C57BL/6J, DBA/2N, BALB/cA, C3H/HeJ, B6D2F1 and B6C3F1) in a solution containing 18% (w/v) raffinose and 3% (w/v) skim milk, and preserved them in liquid nitrogen for >10 y. To assess the normality and fertilizing ability of these sperms, they were thawed and used for in vitro fertilization of oocytes of the same strains. Fertilization rates for C57BL/6J, DBA/2N, BALB/cA, C3H/HeJ, B6D2F1 and B6C3F1 were 66.4, 92.3, 72.8, 32.9, 60.3 and 53.7%, respectively. Furthermore, 38.3, 15.0, 43.3, 26.1, 38.3 and 16.7% of the embryos transferred to pseudopregnant females developed and produced live offspring that had normal phenotype and fertility.
- Published
- 2006
- Full Text
- View/download PDF
50. The oxalate level in ultrafiltrate fluid collected from a dialyzer is useful for estimating the plasma oxalate level in hemodialysis patients.
- Author
-
Ogi M, Abe R, Nishitani T, Wakabayashi M, and Wakabayashi T
- Subjects
- Adult, Aged, Aged, 80 and over, Ascorbic Acid therapeutic use, Erythropoietin therapeutic use, Female, Humans, Hydrogen-Ion Concentration, Male, Middle Aged, Recombinant Proteins, Hemodiafiltration adverse effects, Hemodialysis Solutions chemistry, Oxalates analysis, Oxalates blood
- Abstract
Background: Patients on chronic hemodialysis are likely to develop secondary hyperoxalemia. It is, however, difficult to measure plasma oxalate levels. To measure plasma oxalate levels, rapid plasma separation, deproteinization, and acidification are essential in preventing the formation of oxalate and the deposition of calcium oxalate within the test tube. The present study was undertaken to examine whether the oxalate level in dialyzer ultrafiltrate is potentially useful for estimating plasma oxalate levels., Methods: In nine patients on chronic hemodialysis, the plasma, after deproteinization with a filter, and the ultrafiltrate from the dialyzer before hemodialysis were acidified to a pH level of less than 3, followed by the measurement of oxalate levels by ion chromatography. Also, oxalate levels were compared between acidified and non-acidified ultrafiltrates from the dialyzer. In the second part of the study, seven patients on chronic hemodialysis receiving erythropoietin therapy, in whom the ferritin level was more than 300 ng/ml and transferrin saturation was less than 25%, were intravenously administered ascorbic acid, 100 mg, three times a week, after each dialysis session to facilitate the utilization of stored iron. This treatment was continued until the serum ferritin level decreased to a level below 300 ng/ml (for 3 months, at a maximum). The oxalate level in the dialyzer ultrafiltrate after this treatment was compared with that before treatment., Results: The mean +/- SE oxalate level in the dialyzer ultrafiltrate was 45 +/- 6 micromol/l, essentially equal to the plasma oxalate level (46 +/- 7 micromol/l). The plasma oxalate level had a significant positive correlation with the dialyzer ultrafiltrate oxalate level (plasma oxalate level = 0.99 x dialyzer ultrafiltrate oxalate level + 1.5; r = 0.95; P < 0.0001). The oxalate level in the acidified ultrafiltrate (45 +/- 6 micromol/l) did not differ significantly from that in the non-acidified ultrafiltrate (45 +/- 6 micromol/l). The mean +/- SE duration of ascorbic acid administration was 64 +/- 13 days. The hemoglobin level remained unchanged at 9.6 +/- 0.4 g/dl, whereas the serum iron level increased significantly, from 34 +/- 2 microg/dl to 43 +/- 4 microg/dl (P < 0.05), and serum ferritin levels decreased significantly, from 645 +/- 219 ng/ml to 231 +/- 30 ng/ml after the treatment (P < 0.05). The oxalate level in the acidified ultrafiltrate showed no significant change after ascorbic acid administration (31 +/- 8 micromol/l vs 47 +/- 7 micromol/l)., Conclusions: In patients on chronic hemodialysis, the oxalate level in acidified ultrafiltrate from the dialyzer was found to be useful for estimating the plasma level of non-protein-bound oxalate. When administering ascorbic acid to hemodialysis patients, the plasma oxalate level can be monitored using this method.
- Published
- 2006
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.