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Tanaka K, Adachi H, Akasaka H, Tamaoki J, Fuse Y, Kobayashi M, Kitazawa T, Teraoka H. Oxidative stress inducers potentiate 2,3,7,8-tetrachlorodibenzo-p-dioxin-mediated pre-cardiac edema in larval zebrafish. J Vet Med Sci 2021; 83:1050-1058. [PMID: 34024870 PMCID: PMC8349820 DOI: 10.1292/jvms.21-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We reported the involvement of oxidative stress and prostaglandins including thromboxane and prostacyclin in pre-cardiac edema (early edema) caused by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). While the involvement of oxidative stress in TCDD-induced toxicity has been frequently reported, the mechanism of its action is still unclear. In the present study, oxidative stress inducers including paraquat, hydrogen peroxide (H2O2) and rotenone augmented early edema (edema) induced by a low concentration of TCDD (0.1 ppb) at 55 hr post fertilization (hpf), while each of them alone did not cause edema. Edema caused by TCDD plus oxidative stress inducers was almost abolished by antioxidants, an antagonist for thromboxane receptor (ICI-192,605) and an agonist for prostacyclin receptor (beraprost), suggesting that the site of action of these inducers was in the regular signaling pathway after activation of aryl hydrocarbon receptor type 2 (AHR2) by TCDD. Oxidative stress inducers also enhanced edema caused by an agonist for the thromboxane receptor (U46619), and the enhancement was also inhibited by antioxidants. Sulforaphane and auranofin, activators of Nrf2 that is a master regulator of anti-oxidative response, did not affect U46619-evoked edema but almost abolished TCDD-induced edema and potentiation by paraquat in both TCDD- and U46619-induced edema. Taken together, the results suggest that oxidative stress augments pre-cardiac edema caused by TCDD via activation of thromboxane receptor-mediated signaling in developing zebrafish. As paraquat and other oxidative stress inducers used also are environmental pollutants, interaction between dioxin-like compounds and exogenous source of oxidative stress should also be considered.
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Affiliation(s)
- Katsuki Tanaka
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hikaru Adachi
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hironobu Akasaka
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Junya Tamaoki
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuji Fuse
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Makoto Kobayashi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Takio Kitazawa
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hiroki Teraoka
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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Fuse Y, Endo Y, Araoi S, Daitoku H, Suzuki H, Kato M, Kobayashi M. The possible repositioning of an oral anti-arthritic drug, auranofin, for Nrf2-activating therapy: The demonstration of Nrf2-dependent anti-oxidative action using a zebrafish model. Free Radic Biol Med 2018; 115:405-411. [PMID: 29277393 DOI: 10.1016/j.freeradbiomed.2017.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/07/2017] [Accepted: 12/17/2017] [Indexed: 11/25/2022]
Abstract
The Nrf2 pathway is a biological defense system against oxidative stress. The pharmacological activation of the Nrf2 pathway is a promising therapy for oxidative stress-related diseases, but it has been challenging to find an Nrf2 activator with acceptable toxicity. To circumvent this problem, we focused on an already approved oral anti-arthritic drug, auranofin that has been reported to have the potential to activate Nrf2. We used a zebrafish model to investigate whether auranofin has protective action against oxidative stress in vivo. Auranofin pre-treatment considerably improved the survival of zebrafish larvae that were challenged with a lethal dose of hydrogen peroxide. This protective effect was not observed in an Nrf2 mutant zebrafish strain, suggesting that the activation of the biological defense against oxidative stress was Nrf2-dependent. Auranofin-induced protection was further tested by challenges with redox-active heavy metals. A clear protective effect was observed against arsenite, a highly redox-reactive toxicant. In addition, this effect was also demonstrated to be Nrf2-dependent based on the analysis of an Nrf2 mutant strain. These results clearly demonstrate the anti-oxidative action of auranofin and encourage the repositioning of auranofin as a drug that improves oxidative stress-related pathology.
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Affiliation(s)
- Yuji Fuse
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba 305-8575, Japan; Japan Society for the Promotion of Science, Japan
| | - Yuka Endo
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; College of Biological Sciences, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Sho Araoi
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8577, Japan; Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Hiroaki Daitoku
- Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Hiroyuki Suzuki
- Department of Experimental Pathology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Makoto Kobayashi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
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Fuse Y, Nguyen VT, Kobayashi M. Nrf2-dependent protection against acute sodium arsenite toxicity in zebrafish. Toxicol Appl Pharmacol 2016; 305:136-142. [PMID: 27306194 DOI: 10.1016/j.taap.2016.06.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/01/2016] [Accepted: 06/08/2016] [Indexed: 12/21/2022]
Abstract
Transcription factor Nrf2 induces a number of detoxifying enzymes and antioxidant proteins to confer protection against the toxic effects of a diverse range of chemicals including inorganic arsenicals. Although a number of studies using cultured cells have demonstrated that Nrf2 has a cell-protective function against acute and high-dose arsenic toxicity, there is no clear in vivo evidence of this effect. In the present study, we genetically investigated the protective role of Nrf2 against acute sodium arsenite toxicity using the zebrafish Nrf2 mutant, nrf2a(fh318). After treatment with 1mM sodium arsenite, the survival of nrf2a(fh318) larvae was significantly shorter than that of wild-type siblings, suggesting that Nrf2 protected the zebrafish larvae against high-dose arsenite exposure. To understand the molecular basis of the Nrf2-dependent protection, we analyzed the gene expression profiles after arsenite exposure, and found that the genes involved in the antioxidative function (prdx1 and gclc), arsenic metabolism (gstp1) and xenobiotic elimination (abcc2) were induced in an Nrf2-dependent manner. Furthermore, pre-treatment with sulforaphane, a well-known Nrf2 activator improved the survival of zebrafish larvae after arsenic exposure. Based on these results, we concluded that Nrf2 plays a fundamental and conserved role in protection against acute sodium arsenite toxicity.
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Affiliation(s)
- Yuji Fuse
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Vu Thanh Nguyen
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Makoto Kobayashi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
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Fuse Y, Nakajima H, Nakajima-Takagi Y, Nakajima O, Kobayashi M. Heme-mediated inhibition of Bach1 regulates the liver specificity and transience of the Nrf2-dependent induction of zebrafish heme oxygenase 1. Genes Cells 2015; 20:590-600. [PMID: 25982796 DOI: 10.1111/gtc.12249] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 04/16/2015] [Indexed: 12/16/2022]
Abstract
The induction of the gene encoding heme oxygenase 1 (Hmox1, HO-1) by Nrf2 is unique compared with other Nrf2 targets. We previously showed that the Nrf2a-mediated induction of zebrafish hmox1a was liver specific and transient. We screened transcription factors that could repress the induction of hmox1a but not other Nrf2a targets and concluded that Bach1b was a prime candidate. In bach1b-knocked-down larvae, the induction of hmox1a was observed ectopically in nonliver tissues and persisted longer than normal fish, suggesting that Bach1 is the only regulator for both the liver-specific and transient induction of hmox1a. Co-knockdown of bach1b with its co-ortholog bach1a enhanced these effects. To determine why Bach1 could not repress the hmox1a induction in the liver, we analyzed the effects of a heme biosynthesis inhibitor, succinylacetone, and a heme precursor, hemin. Succinylacetone decreased the Nrf2a-mediated hmox1a induction, whereas pre-treatment with hemin caused ectopic induction of hmox1a in nonliver tissues, implying that the high heme levels in the liver may release the repressive activity of Bach1. Our results suggested that Bach1 regulates the liver specificity and transience of the Nrf2a-dependent induction of hmox1a and that heme mediates this regulation through Bach1 inhibition based on its level in each tissue.
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Affiliation(s)
- Yuji Fuse
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Hitomi Nakajima
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Yaeko Nakajima-Takagi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Osamu Nakajima
- Research Laboratory for Molecular Genetics, Yamagata University, Yamagata, 990-9585, Japan
| | - Makoto Kobayashi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
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Ishige N, Numata T, Shibuya M, Tanno H, Ozaki H, Fuse Y. An Early MRI Change following Reversible Hypoxic Brain Injury. Neuroradiol J 2011; 24:305-10. [DOI: 10.1177/197140091102400221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 01/03/2011] [Indexed: 11/15/2022] Open
Abstract
We describe a patient who suffered reversible hypoxic brain injury. The initial MRI taken 3.5 hours after asphyxiation showed an abnormal lesion on DWI, but he recovered completely from coma. The presence of cytotoxic edema in the acute stage may not necessarily indicate a poor prognosis.
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Affiliation(s)
- N. Ishige
- Department of Neurosurgery, Chiba Medical Center; Chiba, Japan
| | - T. Numata
- Otorhinolaryngology, National Hospital Organization, Chiba Medical Center; Chiba, Japan
| | - M. Shibuya
- Otorhinolaryngology, National Hospital Organization, Chiba Medical Center; Chiba, Japan
| | - H. Tanno
- Department of Neurosurgery, Chiba Medical Center; Chiba, Japan
| | - H. Ozaki
- Department of Neurosurgery, Chiba Medical Center; Chiba, Japan
| | - Y. Fuse
- Department of Neurosurgery, Chiba Medical Center; Chiba, Japan
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Hasegawa T, Doi K, Fuse Y, Fujii K, Kubo T. Expression of glutamate receptors in the cochlea of the normal and kanamycin-deaf rats. Adv Otorhinolaryngol 2002; 57:7-11. [PMID: 11892219 DOI: 10.1159/000059174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- T Hasegawa
- Department of Otolaryngology, Osaka University Medical School, Japan
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Sugii A, Iwaki T, Doi K, Takahashi Y, Yamamoto K, Fuse Y, Kobayashi R, Kubo T. Cochlear implant in a young child with Waardenburg syndrome. Adv Otorhinolaryngol 2002; 57:215-9. [PMID: 11892151 DOI: 10.1159/000059142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- A Sugii
- Department of Otolaryngology and Sensory Organ Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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Ueda Y, Moroshima T, Fuse Y, Yanagida Y, Kitamura M, Masuoka H. Desalination and Crystallization Processes of Lisinopril. Chem Eng Res Des 2002. [DOI: 10.1205/026387602753501933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hasegawa T, Doi K, Fuse Y, Fujii K, Uno Y, Nishimura H, Kubo T. Deafness induced up-regulation of GluR2/3 and NR1 in the spiral ganglion cells of the rat cochlea. Neuroreport 2000; 11:2515-9. [PMID: 10943714 DOI: 10.1097/00001756-200008030-00034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Expressions of AMPA (GluR2, GluR3, and GluR4) and NMDA (NR1 and NR2) glutamate receptors in the spiral ganglion cells of the cochlea were analyzed both at protein and mRNA levels in control and deaf rats between week 0 (P14) and week 8 (P70) after deafness induced by a daily injection of kanamycin at P0-P14. In the deaf rats, significant up-regulations of GluR2, GluR3, and NR1 in the surviving spiral ganglion cells were observed, while expressions of GluR4 and NR2 were fairly constant. In contrast, in the control rats, the expressions of all these glutamate receptor subtypes were stable. These results suggest that drastic alterations in the diversity of GluR2/GluR3/NR1 receptor complexes in the surviving spiral ganglion cells, which result in alterations in Ca2+ permeability, may contribute to the deafness-related alterations in the structure and function of the cochlea.
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MESH Headings
- Age Factors
- Animals
- Animals, Newborn
- Cell Count/statistics & numerical data
- Deafness/chemically induced
- Deafness/metabolism
- Deafness/physiopathology
- Kainic Acid/pharmacology
- Nerve Degeneration/chemically induced
- Nerve Degeneration/metabolism
- Nerve Degeneration/physiopathology
- Polymerase Chain Reaction/methods
- RNA, Messenger/drug effects
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, AMPA/drug effects
- Receptors, AMPA/genetics
- Receptors, AMPA/metabolism
- Receptors, N-Methyl-D-Aspartate/drug effects
- Receptors, N-Methyl-D-Aspartate/genetics
- Receptors, N-Methyl-D-Aspartate/metabolism
- Spiral Ganglion/drug effects
- Spiral Ganglion/metabolism
- Spiral Ganglion/pathology
- Spiral Ganglion/physiopathology
- Up-Regulation/drug effects
- Up-Regulation/physiology
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Affiliation(s)
- T Hasegawa
- Department of Otolaryngology and Sensory Organ Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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Obata H, Saito S, Fujita N, Fuse Y, Ishizaki K, Goto F. Epidural block with mepivacaine before surgery reduces long-term post-thoracotomy pain. Can J Anaesth 1999; 46:1127-32. [PMID: 10608205 DOI: 10.1007/bf03015520] [Citation(s) in RCA: 162] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
PURPOSE To examine the effect of continuous epidural block initiated before thoracic surgery upon early and long-term postoperative pain. METHODS In a double-blind study, 70 patients scheduled for thoracic surgery under general anesthesia were assigned randomly to receive continuous epidural block with mepivacaine 1.5% initiated either 20 min before surgical incision (Pre group) or at completion of surgery (Post group). In both groups the initial dose was 4 ml, followed by a continuous infusion at 4 ml x hr(-1) until 72 hr after operation. Indomethacin suppositories, 50 mg, were administered on request as supplementary analgesics. Visual analogue scale at rest was assessed four hours after operation, and then every 24 hr after operation on postoperative days 1 through 7, and also days 14 and 30. At three and six months after operation, all patients were interviewed by telephone with respect to postoperative pain. The most severe pain was assessed using modified numerical rating scale. RESULTS By a visual analogue scale, postoperative pain was less in the Pre group than in the Post group at four hours, two and three days after operation (P < 0.05). By a numerical rating scale six months after operation, pain was less in the Pre group than in the Post group (P = 0.015). The percentage of pain-free patients was higher in the Pre group than in the Post group at three (P = 0.035) and six (P = 0.0086) months after operation. CONCLUSION Continuous epidural block initiated prior to surgery may reduce long-term post-thoracotomy pain.
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Affiliation(s)
- H Obata
- Department of Anesthesiology and Reanimatology, Gunma University, School of Medicine, Maebashi, Japan
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Hashiguchi Y, Sekine T, Sakamoto H, Tanaka Y, Kazumoto T, Kato S, Sakura M, Fuse Y, Suda Y. Intraoperative irradiation after surgery for locally recurrent rectal cancer. Dis Colon Rectum 1999; 42:886-93; discussion 893-5. [PMID: 10411435 DOI: 10.1007/bf02237096] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
PURPOSE This study retrospectively evaluated the effects of intraoperative electron beam irradiation on patients with locally recurrent (pelvic) rectal cancer. METHODS From November 1, 1975, to December 31, 1997, 51 patients underwent surgery for locally recurrent rectal or rectosigmoid cancer, and 27 patients received intraoperative electron beam irradiation. The intraoperative electron beam irradiation dose was 15 to 30 Gy. Kaplan-Meier survival estimates at three and five years were analyzed for the 47 patients who recovered postoperatively. RESULTS Statistically significant factors related to survival included intraoperative electron beam irradiation vs. no intraoperative electron beam irradiation (P=0.0007), amount of residual tumor (slight vs. gross; P=0.0022), and symptom status (P=0.0024). Factors not associated with survival included distant metastases at reoperation, type of surgery for the recurrent tumor, external beam irradiation, pathologic grade, age, and gender. Surgical resection without intraoperative electron beam irradiation resulted in three-year and five-year survival rates of 5 and 0 percent, respectively. For patients who received intraoperative electron beam irradiation, the three-year survival rate was 43 percent and five-year survival rate was 21 percent. Intraoperative electron beam irradiation was a statistically significant factor related to survival in patients with and without distant metastasis (P=0.04 and P=0.0035, respectively), with slight residual tumor (P=0.0003), or with palliative surgery (P=0.0276). CONCLUSION The trends seen in resection with intraoperative electron beam irradiation are encouraging with regard to improvements in survival as compared with studies not using intraoperative electron beam irradiation treatment.
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Affiliation(s)
- Y Hashiguchi
- Abdominal Surgery, Saitama Cancer Center, Kitaadachi, Japan
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Abstract
Since the first identification of an association between mutations in the connexin26 (Cx26) gene and autosomal recessive non-syndromic deafness it has been shown that several mutations in this gene cause recessive, sporadic, and dominant non-syndromic deafness. Three novel mutations in the Cx26 gene were identified in four of 20 Japanese families with autosomal recessive non-syndromic deafness. Seven of 40 chromosomes contained a 233delC allele, while Tyr136Stop (408C-->A) and Gly45Glu (134G-->A) were detected in two of 40 chromosomes, respectively. These mutations were not found in chromosomes in cases of sporadic congenital deafness (0/60) or in control groups (0/100). This indicates that 27.5% (11/40 chromosomes) of cases of autosomal recessive non-syndromic deafness among the Japanese are caused by mutations in the Cx26 gene.
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Affiliation(s)
- Y Fuse
- Department of Otolaryngology, Osaka University Medical School, Suita, Japan
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Usui H, Fuse Y. [Nursing education at Miyazaki Prefectural Nursing University]. Sogo Kango 1998; 33:24-6. [PMID: 10437579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Fuse Y. [What is psychiatry?]. Sogo Kango 1998; 33:50-6. [PMID: 10427325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Saito H, Matsuóka H, Ueno T, Fuse Y, Sato M. [Information processing deficits in depression in terms of event-related potentials: in comparison with schizophrenics and normal controls]. Seishin Shinkeigaku Zasshi 1997; 99:555-74. [PMID: 9369083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Information processing deficits characteristic of remitted major depression, which may be a vulnerability marker for the disease, were examined from two aspects by means of visual event-related potentials (ERPs) obtained during simple and discriminative response tasks: 1. To clarify the difference in cognitive dysfunction between both depressives and schizophrenics in remission, we compared the ERPs in remitted depressive patients (n = 11) and remitted schizophrenic patients (n = 9) with those of age, and sex-matched controls (n = 10). 2. To clarify the influence of aging on information processing in remitted depression, ERPs in young remitted depressives (20-46 years old, n = 11) were compared with those in older remitted depressives (52-75 years old, n = 11) in contrast to young (n = 10) and older (n = 11) controls. The remitted schizophrenics showed a retardation in NA and N2 latencies and a reduction in P3 amplitude. However, P1 increased in amplitude exclusively in the remitted depressives. The effect of stimulus discrimination on N1 seen in the controls was absent in both patient groups. The results suggest that the remitted depressives had an attentional deficit in early information processing reflected on P1 and N1 potentials, while the remitted schizophrenics had an extensive cognitive dysfunction reflected on N1, NA, N2, and P3 potentials. Although the effect of stimulus discrimination on N1 was absent in both young and older remitted depressive patients, older patients showed no effects of normal aging on ERPs such as P1 increase or N1 increase during discrimination tasks. Significant interaction effects between diagnosis and aging were found by ANOVA only in the laterality of the P1 amplitude. Older remitted depressives showed an unbalanced right-predominance in P1 amplitude. These results suggest that older remitted depressives had the same early information-processing deficit seen in the young remitted depressives as well as an overactivation over the right hemisphere in the attentional mechanism, irrespective of normal aging.
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Affiliation(s)
- H Saito
- Department of Psychiatry, Tohoku University School of Medicine
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Fuse Y. [What is psychiatry?]. Sogo Kango 1997; 32:63-8. [PMID: 10427319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Fuse Y. [What is psychiatry?]. Sogo Kango 1997; 32:26-32. [PMID: 10427307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
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Fuse Y, Muramatsu M, Sugiyama S, Maeda K. [A patient with systemic scleroderma showing improvement during long-term hemodialysis after renal crisis]. Ryumachi 1997; 37:574-80. [PMID: 9311284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A 68-year-old man experienced systemic pruritus since he was 63 years old, and systemic sclerosis and skin pigmentation were observed when he was 64. When he developed dyspnea the same year, he was admitted and SSc was diagnosed on the basis of the clinical and skin biopsy findings, lung fibrosis on X-P and TBLB findings. At 65, his dyspnea reappeared along with elevated blood pressure, acute renal failure and lung congestion, and he was diagnosed as having a scleroderma renal crisis (SRC) from the clinical and renal biopsy findings. Hemodialysis was started because he showed mental disturbance, and this and other acute symptoms were subsequently reduced. As he showed no recovery from his renal failure, the patient has been maintained on hemodialysis for over four years now. In the meantime, his sclerosis has improved and antinuclear antibody almost disappeared. Hemodialysis appears to be the most likely reason for his improvement, although spontaneous remission, D-penicillamine and angiotensin converting enzyme (ACE) inhibitor therapy may also have contributed, considering the short period and the small amount of drugs given until improvement.
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Affiliation(s)
- Y Fuse
- Tohkai Clinic, Tokai-city
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Fuse Y. [What is psychiatry?]. Sogo Kango 1997; 32:73-9. [PMID: 9326118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Fuse Y, Nishimura H, Maeda K, Yoshikai Y. CD95 (Fas) may control the expansion of activated T cells after elimination of bacteria in murine listeriosis. Infect Immun 1997; 65:1883-91. [PMID: 9125576 PMCID: PMC175236 DOI: 10.1128/iai.65.5.1883-1891.1997] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
CD95 (Fas) is known to mediate activation-induced T-cell death by apoptosis. To understand the role of CD95 during the course of bacterial infection, we examined the kinetics of alphabeta and gammadelta T cells in the peritoneal cavities and livers of 5-week-old CD95-defective MRL/lpr mice after an intraperitoneal infection with Listeria monocytogenes. The number of bacteria in the spleen decreased to an undetectable level by day 10 after infection with 7 x 10(3) Listeria cells similar to the number in MRL/+/+ mice. The number of alphabeta T cells expressing CD44 and CD95 reached a maximum in the peritoneal cavity on day 6 after listerial infection and thereafter decreased gradually in MRL/+/+ mice, whereas CD44+ alphabeta T cells without CD95 expression continued to increase throughout the course of listerial infection in MRL/lpr mice. Freshly isolated T cells from MRL/+/+ mice infected with L. monocytogenes 10 days previously showed DNA fragmentation with apoptosis, whereas such fragmentation was not prominent in T cells from infected MRL/lpr mice. In correlation with the increased number of CD44+ alphabeta T cells, Listeria-specific T-cell proliferation of peritoneal exudate cells was significantly greater in MRL/lpr mice than in MRL/+/+ mice on day 10 after listerial infection. In contrast to alphabeta T cells, gammadelta T cells increased in number only transiently in the peritoneal cavity and liver after listerial infection in both MRL/lpr mice and MRL/+/+ mice. These results suggest that CD95-mediated cell death with apoptosis may be involved in termination of the alphabeta-T-cell-mediated immune response after the battle against L. monocytogenes has been won, whereas gammadelta T cells may undergo apoptosis independently of CD95 during the course of listerial infection.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Apoptosis/immunology
- CD3 Complex/immunology
- Cell Division/immunology
- Colony Count, Microbial
- DNA Fragmentation
- Female
- Flow Cytometry
- Hyaluronan Receptors/immunology
- Kinetics
- Listeria monocytogenes
- Listeriosis/immunology
- Liver/immunology
- Liver/microbiology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred MRL lpr
- Peritoneal Cavity/cytology
- Peritoneum/immunology
- Receptors, Antigen, T-Cell, alpha-beta/physiology
- Receptors, Antigen, T-Cell, gamma-delta/physiology
- Spleen/microbiology
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
- fas Receptor/immunology
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Affiliation(s)
- Y Fuse
- Department of Internal Medicine, Nagoya University Branch Hospital, Nagoya University School of Medicine, Japan
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21
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Fuse Y. [What is psychiatry?]. Sogo Kango 1997; 32:29-32. [PMID: 9326106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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22
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Nawashiro H, Shimizu A, Shima K, Chigasaki H, Kaji T, Doumoto E, Fuse Y. Fatal subarachnoid hemorrhage from an inflammatory cavernous carotid artery aneurysm: failure of conservative treatment after early diagnosis--case report. Neurol Med Chir (Tokyo) 1996; 36:808-11. [PMID: 9420433 DOI: 10.2176/nmc.36.808] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Inflammatory carotid artery aneurysm is a rare complication of acute paranasal sinusitis. A 50-year-old female presented with a ruptured giant carotid artery aneurysm secondary to infection of the sphenoid sinus and cavernous sinus. She had been healthy until 5 days before admission, when she developed orbital phlegmon and meningitis. She received antibiotic therapy for 10 days. Computed tomography (CT) of the brain 2 days after admission showed no abnormality. However, repeat CT on day 6 showed a round isodense mass in the suprasellar cistern suggesting a cerebral aneurysm. Twelve days after admission, she suffered a fatal subarachnoid hemorrhage. Cerebral angiography revealed a giant left cavernous carotid artery aneurysm with a very irregular shape. Autopsy found sphenoid sinusitis and osteomyelitis extending into the cavernous sinuses. Diagnosis of bacterial inflammatory aneurysms before rupture is very important. Appropriate surgical intervention should be considered if there is enlargement of the original aneurysm or appearance of a new aneurysm indicating a potentially dangerous situation.
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Affiliation(s)
- H Nawashiro
- Department of Neurosurgery, National Defense Medical College, Saitama
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23
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Affiliation(s)
- Y Fuse
- Department of Neonatology, Toho University School of Medicine, Tokyo, Japan
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24
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Yoshida S, Numachi Y, Matsuoka H, Fuse Y, Sato M. [Reverse-tolerance phenomenon in methamphetamine-induced behavioral stereotypy and impairment of cliff avoidance reaction after subchronic methamphetamine administration in rats]. Nihon Shinkei Seishin Yakurigaku Zasshi 1995; 15:397-403. [PMID: 8564732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Clinical evidence of methamphetamine (MAP)-induced reverse-tolerance phenomenon is available in studies of methamphetamine psychosis. To examine the clinical relevance of the reverse-tolerance phenomenon as a model of this psychosis, two experiments were conducted using rats. In the first experiment, we examined the relationship of MAP (4 mg/kg/day)-induced reverse tolerance in behavioral stereotypy to impairment of the cliff avoidance reaction (CAR). The stereotypy scores by the method of Creese and Iversen reached a maximum at day 14, and were unchanged thereafter. Impairment of CAR appeared in 3 of 6 rats at day 21 or 28 without motor ataxia, as rated by the scoring system of Hiramatsu et al. This suggested that cognitive dysfunction reflected by CAR impairment may develop after MAP-induced reverse-tolerance phenomenon, as evaluated by the behavioral stereotyping rating scale. In the second experiment, the effect of PCP (1 mg/kg) on CAR was examined in rats pretreated with MAP (4 mg/kg/day) for 30 days. No behavioral stereotypy or CAR impairment was found in these rats for 1 hour after PCP challenge. This showed that MAP-induced reverse-tolerance did not alter sensitivity to PCP in producing behavioral stereotypy or CAR impairment.
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Affiliation(s)
- S Yoshida
- Department of Psychiatry, Tohoku University School of Medicine, Sendai, Japan
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25
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Watanabe T, Tanabe T, Sato H, Fuse Y, Ueda K, Nakano K, Saito H, Maehara N. Optimum culture conditions for production of exfoliative toxin by Staphylococcus hyicus. Microbiol Immunol 1995; 39:369-77. [PMID: 8551967 DOI: 10.1111/j.1348-0421.1995.tb02215.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Optimum culture conditions for the production of exfoliative toxin by Staphylococcus hyicus (shET) were examined. High shET activity was obtained from the culture filtrate of HI and TY broth inoculated with S. hyicus. The pH in these two media ranged from 7 to 8.5 during bacterial culture, while the lowest pH in TS and BHI broth was less than 6. shET activity in the culture filtrate from TY broth inoculated with 10(7) CFU of S. hyicus per ml was higher than that in TY broth inoculated with 10(6) and 10(8) CFU of bacteria per ml. When shET activity in the culture filtrate was measured under various shaking conditions, the culture filtrate shaken at 75 oscillations per min had the highest shET activity of the five shaking conditions. shET activity of the culture filtrate of TY broth to which protease inhibitor had been added was the same as that of TY broth without inhibitor. shET activity in a shaking culture in an Erlenmeyer flask was also the same as that in sac culture and that in shaking culture using a shaking (Sakaguchi) flask. shET activity in TY broth supplemented with 100 mM glucose was significantly lower than that in TY broth without glucose. Based on the above results, the optimum culture conditions for the production of shET were as follows: inoculation of 3 x 10(9) CFU of S. hyicus strain P-1 into 300 ml of TY broth in a 2,000-ml Erlenmeyer flask, and incubation at 37 C with shaking at 75 oscillations per min.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- T Watanabe
- Department of Veterinary Microbiology, School of Veterinary Medicine and Animal Sciences, Kitasato University, Aomori, Japan
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26
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Fuse Y, Masuyama J, Yoshio T, Mimori A, Takeda A, Minota S, Kano S. [Progressive systemic sclerosis (PSS) and cancer--increasing coincidence rate of cancer in 67 PSS patients]. Ryumachi 1995; 35:25-31. [PMID: 7732486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The coincidence rate of cancer and PSS has been increasing according to reports from Nippon Byori Boken Shuho (Annual of Pathological Autopsy Cases in Japan), reaching 12.3% in the most recent report. Therefore we reviewed the histories of 67 PSS patients seen at our division over an 18-year period between 1974 and 1992, and found a high coincidence rate (14.6%) of cancer, reflecting the increasing tendency reported in the Nippon Byori Boken Shuho. The most frequent type of cancer was gastrointestinal cancer, including gastric and colon cancer and duodenal carcinoid. There were no significant differences in the clinical and laboratory findings between PSS patients with cancer and those without. Twenty-six of the 67 PSS patients died. Cancer was the cause of death in four, ranking second behind respiratory failure. The reason for the increasing coincidence rate of cancer and PSS is unclear at present. However, it is very important to discover cancer in PSS patients as early as possible, since it has a marked effect on prognosis.
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Affiliation(s)
- Y Fuse
- Division of Clinical Immunology, Jichi Medical School, Tochigi
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27
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Fuse Y. [What is psychiatry]. Sogo Kango 1994; 29:57-62. [PMID: 7813207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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28
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Fuse Y. [What is psychiatry?]. Sogo Kango 1994; 29:77-82. [PMID: 7924283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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29
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Kishida H, Yamamoto K, Fuse Y, Noda M, Higashida H. Activation of inward current associated with M-potassium current inhibition in m1-muscarinic receptor-transformed NG108-15 cells by KST-5452, a novel cognition enhancer. Neurosci Lett 1994; 172:119-21. [PMID: 8084514 DOI: 10.1016/0304-3940(94)90676-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The electrophysiological effects of KST-5452 [3-(m-phenoxybenzylidene)-quinuclidine], an M1 muscarinic acetylcholine receptor (muscarinic AChR) binding compound, were studied in NG108-15 neuroblastoma x glioma hybrid cells transfected with m1 muscarinic AChR cDNA. Application of KST-5452 to m1-transformed NGPM1-27 cells elicited a sustained inward current associated with decreased conductance and reduced M-current relaxations at a holding potential of -20 mV. The KST-5452-induced responses were blocked by pirenzepine, suggesting that KST-5452 acts as a potent excitant via M1 muscarinic AChRs in brain neurons.
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Affiliation(s)
- H Kishida
- Biochemical Research Laboratories, Kaneka Corporation, Takasago, Japan
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30
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Abstract
Abnormalities of saccades such as disinhibition have been hypothesized as one cause of smooth pursuit eye movement (SPEM) dysfunctions in schizophrenia. Thus, we studied saccadic eye movements in schizophrenics with SPEM dysfunction. Subjects were divided into three groups: 10 normal control subjects, 10 schizophrenic subjects without SPEM dysfunction and 10 schizophrenic subjects with SPEM dysfunction characterized by a cogwheel appearance. Visually guided saccades in gap and overlap paradigms (Saslow, 1967) were examined and saccadic reaction times (SRTs) were measured in all subjects. Only schizophrenics with SPEM dysfunctions tended to manifest excessive reflexive saccades, named express saccades (Fischer, 1987), in the gap paradigm. Moreover, most of them were also found to have express saccades in the overlap paradigm, whereas normal subjects and schizophrenic subjects without SPEM dysfunction did not show such phenomena under the same conditions. In particular, most express saccades in the overlap paradigm in schizophrenics with SPEM dysfunction, were found in movements to the right.
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Affiliation(s)
- Y Matsue
- Department of Psychiatry, Tohoku University School of Medicine, Sendai, Japan
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31
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Fuse Y. [What is psychiatry?]. Sogo Kango 1994; 29:85-90. [PMID: 8026185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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32
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Abstract
The follicular dendritic cells (FDC) in B-lymphoid follicles are unique reticular cells that retain immune complexes on their surfaces. We developed new monoclonal antibodies (MAb), SKY01, 28, 41, and 49, against mouse FDC without useful cell markers. Immunohistochemical study of spleen and lymph node tissues from Balb/c, C3H, and C57BL/6 mice revealed that SKY01 and 49 were highly specific for FDC, whereas SKY28 and 41 reacted with other stromal components as well as FDC. On immunoelectron microscopy (IEM), reaction products for all MAb were localized on the surfaces of FDC. In ontogenetic study of Balb/c spleen, FDC precursors were not immunodetected with any of the MAb at 1 week after birth. The FDC that first appeared as immune complex-retaining cells at 2 weeks were a subpopulation of SKY01-, 49-, 28+, and 41+ reticular cells. At 3 weeks, FDC were positive for all MAb, like adult spleen. These results indicate that our MAb recognize differentiation antigens of FDC. Comparative immunohistochemical studies of spleen from athymic nude and severe combined immunodeficiency mice suggested that B-cells may be required for the differentiation of FDC. Consequently, these MAb are considered useful tools for research on FDC.
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Affiliation(s)
- N Imazeki
- Second Department of Pathology, National Defense Medical College, Tokorozawa, Japan
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33
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Matsue Y, Saito H, Osakabe K, Awata S, Ueno T, Matsuoka H, Chiba H, Fuse Y, Sato M. Smooth pursuit eye movements and voluntary control of saccades in the antisaccade task in schizophrenic patients. Jpn J Psychiatry Neurol 1994; 48:13-22. [PMID: 7933710 DOI: 10.1111/j.1440-1819.1994.tb02991.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
It has been hypothesized that a saccade control dysfunction is one cause of a smooth pursuit eye movement (SPEM) dysfunction in schizophrenia. We studied the voluntary control of saccades in schizophrenic patients with the SPEM dysfunction using an antisaccade task. The mean error rate in the antisaccade task was significantly higher in the two schizophrenic groups with and without a SPEM dysfunction than in the normal control group. Furthermore, the schizophrenic group with the SPEM dysfunction showed significantly more errors than the schizophrenic group without the SPEM dysfunction. These findings seem to suggest a close relationship between the SPEM dysfunction and the appearance of errors which indicates an inability to inhibit reflexive saccades voluntarily in the antisaccade task. However, 4 of 10 subjects with the SPEM dysfunction showed an error rate less than the mean error rate of the schizophrenic group without the SPEM dysfunction. So, a voluntary control disorder of saccades as the main cause of the SPEM dysfunction appeared to be unlikely. An interesting finding of this study was that many schizophrenic subjects with the SPEM dysfunction showed errors with the latencies similar to those in express saccades, particularly in the rightward direction. This finding may suggest a close relationship between the SPEM dysfunction in schizophrenic patients and some pathological conditions of express saccades such as disinhibition of express saccades.
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Affiliation(s)
- Y Matsue
- Department of Psychiatry, Tohoku University School of Medicine, Sendai, Japan
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34
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Fuse Y. [What is psychiatry?]. Sogo Kango 1994; 29:71-6. [PMID: 8181268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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35
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Fuse Y, Kakinuma S, Mukai H, Nagae T, Kanemaki M. [Correlation between fetal growth and platelet function in normal pregnancy]. Nihon Sanka Fujinka Gakkai Zasshi 1994; 46:1-6. [PMID: 8308398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Various interpretations have been attempted, but no definitive theory has yet been established as to the etiology of the low-birth-weight infant. We carried out the present study in an attempt to explore the relationship between platelet functions and fetal growth during normal pregnancy. For this purpose, we made a retrospective study of 130 pregnant women aged 23-35 with no clinical abnormalities throughout pregnancy or at delivery. Blood samples were taken at 29-30 weeks of gestation (referred to as the 2nd trimester) and 37-38 weeks of gestation (referred to as the 3rd trimester). The cases studied were divided into two groups: i) those with a birth weight of under 2,500g (n = 32), and ii) those with a birth weight of over 2,500g (n = 98). In these two groups, we studied the platelet functions in maternal blood in the 2nd and 3rd trimesters. The following results were obtained: 1) In the 2nd to 3rd trimester, the platelet count showed no significant variation with the birth weight. 2) In the 2nd to 3rd trimester, the platelet aggregation was found to be moderately depressed in cases with a birth weight of under 2,500g, while it was found to be moderately activated in cases with a birth weight of over 2,500g. 3) In the 2nd to 3rd trimester, platelet factor 4 was significantly lower (p < 0.005) in cases with a birth weight of under 2,500g, while it was moderately higher in cases with a birth weight of over 2,500g.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- Y Fuse
- Department of Obstetrics and Gynecology, Mizonokuchi Hospital, Teikyo University School of Medicine, Kanagawa
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36
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Fuse Y. [What is psychiatry?]. Sogo Kango 1993; 28:63-68. [PMID: 8281773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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37
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Fuse Y. [What is psychiatry?]. Sogo Kango 1993; 28:87-92. [PMID: 8403880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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38
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Ueno T, Matsuoka H, Sato M, Matsue Y, Fuse Y, Saito H, Takashina N. Disturbance of visual information processing in temporal lobe epilepsy: in comparison with idiopathic generalized epilepsy. Jpn J Psychiatry Neurol 1993; 47:345-6. [PMID: 8271589 DOI: 10.1111/j.1440-1819.1993.tb02098.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- T Ueno
- Department of Psychiatry, Tohoku University School of Medicine, Sendai
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39
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Abstract
High plasma GH concentrations are observed in the newborn infant. To characterize the maturational change of GH secretion in premature infants, we serially measured 24-h urinary GH excretion in 30 premature infants. The gestational age ranged from 25-37 weeks and birth weight from 468-2415 g. Urinary GH excretion at 1 week of age was negatively correlated with gestational age, birth weight, and length of infants with adequate intrauterine growth. In the infants with 27 weeks of mean gestation (range, 25-28 weeks) mean urinary GH excretion was highest (6.1 micrograms/day) at the first week, decreased to 1.2 micrograms/day by the fourth week, and remained between 0.05 and 0.18 micrograms/day thereafter. When compared to the corresponding conceptional age, there was no postnatal difference in the pattern of GH excretion between infants with 27 and 31 (range, 29-32) weeks of mean gestational age. Persistent hyperexcretion of GH was observed in 4 of the 5 infants with intrauterine or postnatal growth retardation. Our results suggest that the postnatal change of 24-h urinary GH excretion is similar to ontogenic changes of plasma GH in fetus, and GH may have some effects on postnatal growth in premature infants.
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Affiliation(s)
- Y Fuse
- Department of Neonatology, Toho University, School of Medicine, Tokyo, Japan
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40
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Fuse Y. [What is psychiatry?]. Sogo Kango 1993; 28:87-92. [PMID: 8325021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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41
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Fuse Y. [What is psychiatry?]. Sogo Kango 1993; 28:71-6. [PMID: 8467655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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42
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Matsuura Y, Imazeki N, Senoo A, Fuse Y. Ontogenic study on the bronchus-associated lymphoid tissue (BALT) in the rat, with special reference to dendritic cells. Adv Exp Med Biol 1993; 329:443-7. [PMID: 8379408 DOI: 10.1007/978-1-4615-2930-9_74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Y Matsuura
- Department of Pathology II, National Defense Medical College, Saitama, Japan
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43
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Senoo A, Imazeki N, Matsuura Y, Fuse Y. A serial section study on mice Langerhans cell granules after DNFB painting. Adv Exp Med Biol 1993; 329:219-24. [PMID: 8379373 DOI: 10.1007/978-1-4615-2930-9_37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- A Senoo
- Second Department of Pathology, National Defense Medical College, Saitama, Japan
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44
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Tada H, Uga N, Fuse Y, Shimizu M, Nemoto Y, Wakae E, Okamoto Y, Mishina J, Baba K. Prevention of perinatal transmission of hepatitis B virus carrier state. Acta Paediatr Jpn 1992; 34:656-9. [PMID: 1285514 DOI: 10.1111/j.1442-200x.1992.tb01026.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
By means of passive and active immunization with hepatitis B immunoglobulin and hepatitis B vaccine, 396 of 407 babies born to hepatitis B antigen-positive carrier mothers, were protected from establishing the hepatitis B virus (HBV) carrier state during a follow-up period of 12 months or longer. Four infants developed the HBV carrier state before the completion of the immunoprophylaxis schedule, and another seven developed the state after the completion of the schedule. Seroconversion of anti-HBc was observed in 26.8% of the successfully protected infants. In Japan a nationwide program to prevent the vertical transmission of HBV with these procedures was established in 1986, and so liver diseases due to HBV are expected to be eliminated in the near future.
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Affiliation(s)
- H Tada
- Department of Neonatology, Toho University School of Medicine, Tokyo, Japan
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45
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Abstract
We compared the survival of cultured epithelial allografts and epithelial autografts applied to donor sites for split-thickness skin grafts. Before grafting, cultured epithelium was devoid of Langerhans cells (LCs) or lymphoid cells by immunohistochemical and electron microscopic examinations. The autografts attached to the wounds permanently, without any clinical evidence of rejection. In contrast, allografts, which were mismatched for MHC and blood-type antigens, appeared to adhere firmly only until day 7. By the second week, signs of graft rejection were apparent: The graft changed color, and the underlying dermis underwent "microerosion" and denudation. By the third week, the area formerly occupied by the allograft had the same coloration as ungrafted wounds and apparently had undergone reepithelialization by the host. Immunohistochemical and ultrastructural studies clearly demonstrated that host Langerhans-like cells (without Birbeck granules) appeared in both autografts and allografts. However, these cells were numerous and distributed widely throughout allografts, whereas they were scarce and confined to the basal layer of autografts. Typical Langerhans cells (containing Birbeck granules) were present in the prickle-cell layer of autografts by day 7. The present study strongly indicates that allografts of cultured epithelium are rejected. Furthermore, given the known ability of Langerhans-like cells to function as accessory cells in T-cell activation, our results point to a role for host Langerhans-like cells in immunologically mediated rejection of the epithelial allografts.
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Affiliation(s)
- M Nakano
- Department of Plastic and Reconstructive Surgery, Hokkaido University School of Medicine, Japan
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46
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Fuse Y. [What is psychiatry?]. Sogo Kango 1992; 27:87-92. [PMID: 1478082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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47
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Wada S, Kitamura H, Matsuura Y, Katayama Y, Ohkawa H, Kugai N, Motoyoshi K, Fuse Y, Nagata N. Parathyroid hormone-related protein as a cause of hypercalcemia in a B-cell type malignant lymphoma. Intern Med 1992; 31:968-72. [PMID: 1335805 DOI: 10.2169/internalmedicine.31.968] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Hypercalcemia occurred in a patient with non-Hodgkin's (B-cell type) lymphoma when generalized lymphadenopathy developed. Despite low normal plasma parathyroid hormone (PTH), nephrogenous cAMP (NcAMP) was not suppressed, and serum and urine PTH-related protein (PTH-rP) levels were elevated. The plasma level of 1,25(OH)2D was within normal range. The combined chemotherapies successfully reduced the tumor size, serum Ca, PTH-rP, and lactic dehydrogenase. Serum osteocalcin was suppressed while the patient was hypercalcemic, and increased after chemotherapy. In the extract of the tumor tissue obtained post mortem, bioactivity stimulating the production of cAMP in osteoblasts was demonstrated along with the immunoreactive PTH-rP. This is the first report of a B-cell lymphoma producing PTH-rP and its association with humoral hypercalcemia of malignancy.
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Affiliation(s)
- S Wada
- Third Department of Internal Medicine, National Defense Medical College, Saitama, Japan
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Fuse Y. [What is psychiatry?]. Sogo Kango 1992; 27:91-6. [PMID: 1395547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Imazeki N, Senoo A, Fuse Y. Is the follicular dendritic cell a primarily stationary cell? Immunology 1992; 76:508-10. [PMID: 1526656 PMCID: PMC1421676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The cell nature of follicular dendritic cells (FDC), a member of dendritic cell group, was examined to see whether or not they are recirculating cells on splenic implantation study. Slices of BALB/c mouse spleen were implanted into C57BL/6 mice neonatally thymectomized and reconstructed by F1 (BALB/c x C57BL/6) thymus grafting. On H-2 class I immunohistology 6 months later, host spleens consisted of only the cells including FDC of host (C57BL/6) type. On the other hand, FDC of regenerated splenic grafts were of splenic donor (BALB/c) origin and haematogenic cells including germinal centre lymphocytes were of the host (C57BL/6) origin. The fact that the FDC in the regenerated splenic grafts reside irrespective of the replacement by host recirculating cells indicates that FDC belong primarily to stationary cell populations but not recirculating cell populations.
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Affiliation(s)
- N Imazeki
- Second Department of Pathology, National Defense Medical College, Tokorozawa, Japan
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Matsuura Y, Matsuoka T, Fuse Y. Ultrastructural and immunohistochemical studies on the ontogenic development of bronchus-associated lymphoid tissue (BALT) in the rat: special reference to follicular dendritic cells. Eur Respir J 1992; 5:824-8. [PMID: 1499705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The ontogenic development of lymphoid and non-lymphoid cells in bronchus-associated lymphoid tissue (BALT) of the rat was studied ultrastructurally and immunohistochemically. In the late foetal period, only the alveolar macrophages showed a weak positivity for leucocyte common antigen, but no immune region associated (Ia) antigen was detected by monoclonal antibody, MAS 043. Mast cells were present. At 6 days of age, Ia-positive cells were observed in the alveolar wall and peribronchial interstitial tissue, and ultrastructurally there was an aggregation of the fibroblastoid mesenchymal cells. By 10 days of age, the aggregation of lymphoid cells together with S-100-positive reticulum cells had formed a BALT-like periarterial lymphoid sheath. In the adult animals, an obvious B-cell area was present in the central part and subepithelium of BALT, whilst in this area, S-100-positive, strongly Ia-positive cells with a dendritic form were observed. These dendritic cells appeared to be identical to the follicular dendritic cells (FDC) seen in the secondary follicles of lymphoid organs. Those cells may be derived from the fibroblastic reticulum cells, and may function to present antigen to lymphocytes.
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Affiliation(s)
- Y Matsuura
- 2nd Dept of Pathology, National Defense Medical College, Saitama, Japan
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