Publications by authors named "Tsuchiya Yoshiyuki"

Background: The relationships between the postpartum subacute ruminal acidosis (SARA) occurrence and predicted bacterial functions during the periparturient period are still not clear in Holstein cows.

Objectives: The present study was performed to investigate the alterations of rumen fermentation, bacterial community structure, and predicted bacterial functional pathways in Holstein cows.

Methods: Holstein cows were divided into the SARA (n = 6) or non-SARA (n = 4) groups, depending on whether they developed SARA during the first 2 weeks after parturition.

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To improve the accuracy of ultrasonographic assessment of luteal function, we investigated the relationship between ovarian ultrasonographic findings on Day 7 (Day 1 = ovulation) and plasma progesterone (P) concentration, nutritional metabolic factors, and pregnancy outcome. A total of 47 spontaneous estrus events were investigated in 38 lactating Holstein cows (artificial insemination, n = 31; embryo transfer, n = 16). Transrectal ultrasonography was performed on Days 0 and 7 to measure the pre-ovulatory follicle area on Day 0 and the luteal tissue area (LTA), luteal blood flow area (LBF), relative LBF (rLBF) (= LBF/LTA), and dominant follicle area (DFA) on Day 7.

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Article Synopsis
  • The study identifies five mRNA variants of the high-affinity K transporter in japonica rice, focusing on their expression and roles under salt stress.
  • Analysis showed the main variant had significantly higher transcript levels in roots and shoots compared to others, particularly after 24 hours of salt exposure.
  • Two-electrode voltage clamp experiments indicated that the variants expressed in oocytes resulted in smaller sodium currents, contributing to insights on ion homeostasis and salt tolerance in rice.
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Aluminum (Al)-tolerant tobacco cell line ALT301 derived from SL (wild-type) hardly exhibits Al-triggered reactive oxygen species (ROS) compared with SL. Molecular mechanism leading to this phenotype was investigated comparatively with SL. Under normal growth condition, metabolome data suggested the activation of glycolysis and lactate fermentation but the repression of the tricarboxylic acid (TCA) cycle in ALT301, namely aerobic fermentation, which seemed to be transcriptionally controlled partly by higher expression of genes encoding lactate dehydrogenase and pyruvate dehydrogenase kinase.

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We investigated changes in rumen fermentation, peripheral blood metabolites and hormones, and hepatic transcriptomic dynamics in Holstein cows with and those without subacute ruminal acidosis (SARA) during the periparturient period. Sixteen multiparous Holstein cows were categorized in the SARA ( = 8) or non-SARA ( = 8) groups depending on whether they developed SARA during the 2 wk after parturition. Reticulo-ruminal pH was measured continuously throughout the study.

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Article Synopsis
  • The study examined how subacute ruminal acidosis (SARA) affects blood metabolites, oxidative stress markers, and gene expression in Holstein cows around the time of giving birth.
  • Eighteen cows were divided into two groups: SARA (cows with low ruminal pH) and non-SARA, with various blood and liver samples taken before and after parturition.
  • Results showed significant changes in oxidative stress markers and gene expression in the SARA group, indicating a potential link between negative energy balance and increased oxidative stress during the periparturient period.
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We investigated changes in oxidative stress markers during the transition period in healthy Holstein cows and those with postpartum diseases. Transition control (TC) Holstein cows (n=9) were evaluated for longitudinal changes during the transition period and postpartum diseased (PD) cows with ketosis (n=10), abomasal displacement (n=9), and acute mastitis (n=10) were evaluated in comparison to control cows (n=10). In the TC group, blood samples were collected at 2 weeks prepartum and at 1, 2, 4, 6, and 8 weeks postpartum.

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The authors have elected to retract this paper in accordance with the following points. The article as written contains misleading information and omits important details. Cows in this study were assigned to groups based on the current definition of subacute ruminal acidosis; they were housed on two different farms and fed two different sets of rations in this study.

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Background: Osteosarcomas of the head and neck region are rare entities that comprise < 10% of all osteosarcomas. Multimodality treatment of patients with osteosarcoma is well-established for osteosarcoma in long bones, and the benefits of chemotherapy in long bones are clearly known. However, there is no consensus regarding the effects of chemotherapy in cases of head and neck osteosarcoma.

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Docetaxel, cisplatin plus fluorouracil (DCF) regimen is a useful chemotherapy, but is sometimes withdrawn due to severe adverse effects (AE). In this study, we examined whether the chronotherapy of DCF regimen could reduce the drugs-induced toxicities in clinical practice. Patients with oral squamous cell carcinoma were enrolled.

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In this clinical report, we present the management of a brain abscess that was presumed to be caused by radiation osteomyelitis of the mandible. The patient underwent chemoradiotherapy for oropharyngeal carcinoma on the left side at the Department of Otolaryngology of our hospital in 2000. Local recurrence or metastasis did not occur post-treatment.

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Cell death mechanism triggered by aluminium (Al) ion was investigated at root apex of tobacco (cultivar Bright Yellow) and in cultured tobacco cell line BY-2 derived from Bright Yellow, focusing on VPE genes (NtVPE1a, NtVPE1b, NtVPE2, NtVPE3). Cell death was detected as a loss of integrity of the plasma membrane by vital staining with fluorescein diacetate (in root apex) and Evans blue (in BY-2), respectively. At root apex, the upregulation of gene expression of VPE1a and VPE1b was observed significantly after 9h of Al exposure in parallel with an enhancement of cell death, while the upregulation of VPE2 and VPE3 were observed later.

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The aluminum-activated malate transporter (ALMT) family of proteins transports malate and/or inorganic anions across plant membranes. To demonstrate the possible role of ALMT genes in tomato fruit development, we focused on SlALMT4 and SlALMT5, the two major genes expressed during fruit development. Predicted proteins were classified into clade 2 of the family, many members of which localize to endomembranes.

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Objective: The purpose of this study was to investigate the relationship between habitual chewing side and perception of the oral mucosa following reconstruction with dental implants.

Study Design: Five patients comprised 2 males and 3 females, with ameloblastoma in 2 patients, odontogenic myxoma in 2 patients, and oral squamous cell carcinoma in 1 patient. They were treated using mandibular reconstruction with bare bone graft after segmental resection of the mandible.

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TaALMT1 from wheat (Triticum aestivum) and AtALMT1 from Arabidopsis thaliana encode aluminum (Al)-activated malate transporters, which confer acid-soil tolerance by releasing malate from roots. Chimeric proteins from TaALMT1 and AtALMT1 (Ta::At, At::Ta) were previously analyzed in Xenopus laevis oocytes. Those studies showed that Al could activate malate efflux from the Ta::At chimera but not from At::Ta.

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Angioleiomyoma is a form of subcutaneous vascular leiomyoma that usually occurs in the extremities. Leiomyoma of the oral cavity represents only 0.4% of soft tissue neoplasms and 0.

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A case showing reinforcement of the action of warfarin and potassium in a patient administered S-1 is reported.The patient was a 71-year-old man with left upper gingival cancer.He had ventricular tachycardia (VT), hypertrophic cardiomyopathy, and a cerebellar infarction.

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Wheat and Arabidopsis plants respond to aluminum (Al) ions by releasing malate from their root apices via Al-activated malate transporter. Malate anions bind with the toxic Al ions and contribute to the Al tolerance of these species. The genes encoding the transporters in wheat and Arabidopsis, TaALMT1 and AtALMT1, respectively, were expressed in Xenopus laevis oocytes and characterized electrophysiologically using the two-electrode voltage clamp system.

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The role of vacuole in the cell death mechanism induced by aluminum (Al) was investigated in tobacco (Nicotiana tabacum L.) cell line BY-2. Cells at logarithmic phase of growth were treated without (control) or with Al (up to 150 μM) in a treatment medium containing CaCl2, sucrose and 2-(N-morpholino) ethanesulfonic acid (MES) buffer (pH 5.

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The objective of this study was to determine whether subacute ruminal acidosis (SARA) could be diagnosed by continuous measurements of the reticular pH, as compared with the ruminal pH, using healthy cows fed a control diet and SARA cows fed a rumen acidosis-inducing diet. The reticular and ruminal pH were measured simultaneously by a radio transmission pH measurement system. The mean reticular pH at 1-h intervals decreased gradually from the morning feeding to the next feeding time in both healthy and SARA cows, though the decrease in the ruminal pH was observed to be more drastic as compared with that observed in the reticular pH.

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Al³+ -resistant cultivars of wheat (Triticum aestivum L.) release malate through the Al³+ -activated anion transport protein Triticum aestivum aluminum-activated malate transporter 1 (TaALMT1). Expression of TaALMT1 in Xenopus oocytes and tobacco suspension cells enhances the basal transport activity (inward and outward currents present in the absence of external Al³+, and generates the same Al³+ -activated currents (reflecting the Al³+-dependent transport function) as observed in wheat cells.

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Six patients with advanced oral squamous cell carcinoma were treated with preoperative concurrent chemoradiotherapy. Chemotherapy consisting of CDDP(60 to 70 mg/m(2), day 1)and 5-FU(600 to 700 mg/m(2), day 1 to 5)with concurrent radiotherapy was accelerated hyperfractionation to target volume of 43-63 Gy. The clinical effect of this therapy on the primary tumor and cervical lymph node was examined in patients who visited our university hospital from 1994 to 2004.

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The use of buccal mucosa and a tongue flap in reconstruction of full-thickness defects of the lower lip is described. The patient's face received a heavy blow in a traffic accident. Necrosis caused by hematogenous disturbance occurred in more than half of the entire lower lip vermilion.

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