Publications by authors named "Asao Y"

: Generative artificial intelligence (AI) such as ChatGPT has developed rapidly in recent years, and in the medical field, its usefulness for diagnostic assistance has been reported. However, there are few reports of AI use in dental fields. : We created 20 questions that we had encountered in clinical pediatric dentistry, and collected the responses to these questions from three types of generative AI.

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The surface pre-reacted glass ionomer (S-PRG) filler is a type of bioactive functional glass that releases six different ions. This study examined the effects of the S-PRG filler eluate on in the presence of sucrose. In a solution containing , the concentrations of BO, Al, Sr, and F were significantly higher in the presence of the S-PRG filler eluate than in its absence ( < 0.

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Article Synopsis
  • * The study analyzed serum samples from MM patients to identify biomarkers predicting the effectiveness of Len and dexamethasone therapy, finding that certain cytokine levels were linked to patient survival outcomes.
  • * Key findings included that high IL-18 and M-CSF levels correlated with shorter survival times, whereas high PDGF-BB levels indicated better survival, highlighting the role of specific cytokines in treatment response.
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Chemotherapy is a common treatment for pediatric cancer. Although life prognosis is improving because of advances in medical science, it is important to deal with late effects such as dental abnormalities. We investigated the association between dental abnormalities and chemotherapy by age and tooth type.

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Background And Objectives: Gastrectomy causes vitamin B-12 deficiency since vitamin B-12 requires gastric acid and intrinsic factor for its absorption. Vitamin B-12 deficiency is considered to develop years after gastrectomy because of large hepatic storage. However, most gastric cancer develops after long-standing atrophic gastritis with vitamin B-12 malabsorption.

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Background: Congenital absence of teeth is a major dental abnormality in pediatric dentistry and the absence of six or more teeth is defined as oligodontia. Few reports of patients with non-syndromic oligodontia without systemic disease have continued dental follow-up from an early age.

Methods: We performed the five-year follow-up from before the eruption of the primary dentition of a Japanese child with non-syndromic oligodontia and analyzed changes in dental arch growth.

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Article Synopsis
  • Understanding the parameters for body size growth is crucial in forensic science for accurately estimating fetal age and assessing the impact of the postmortem environment on size measurements.
  • In Japan, stillbirths must be reported, and the challenges in a forensic autopsy case revealed complications in accurately measuring fetal age due to issues with soft tissue preservation.
  • Discrepancies in age estimations based on bone size and tooth development suggest that forensic age estimation should involve comprehensive discussions among professionals to address variations in methodologies and sample conditions.
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The presence of a supernumerary tooth is one of the most common dental anomalies, and surgical treatment is often required to address this anomaly. Moreover, it may lead to malocclusion, and long-term follow-up is important to monitor its status. A 4-year-and-11-month-old boy was referred to our hospital for dental caries treatment.

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Tissue inhibitors of metalloproteinases (TIMPs) are endogenous matrix metalloproteinase inhibitors. TIMP1 is produced by cancer cells and has pleiotropic activities. However, its role and source in multiple myeloma (MM) are unclear.

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Human endogenous retroviruses (HERVs) are retrotransposons that infect human germline cells and occupy 5-8% of the human genome. Their expression, though inhibited by mutation, deletion, and epigenetic mechanisms under normal conditions, is associated with diseases including cancer. This study aimed to clarify the association between HERVs and multiple myeloma (MM) progression.

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Aim: In Cambodia, civil unrest has led to insufficient and inaccessible dental health services. Oral health education and awareness are lacking, thus childhood dental caries is highly prevalent. This study aimed to examine the effects of an oral health education programme for public primary school teachers on the pupils' oral health.

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Background: Although dental radiography is a valuable tool for age estimation in forensic anthropology and odontology, very limited radiological data are available regarding tooth development in healthy newborn babies during the first month of life.

Aim: This study aimed to describe the radiological findings of tooth development in babies aged 0 days to 1 month.

Design: We analyzed the postmortem findings of five newborn babies with no known natural cause of death who had undergone autopsy, computed tomography (CT), and dental radiography.

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Purpose: The purpose of this repeated cross-sectional study was to investigate the prevalence and severity of oral hygiene conditions in Cambodian primary school children.

Methods: Oral examinations were conducted on 2,020 school children (1st-6th grade) at a public primary school in Siem Reap, Cambodia from 2013 to 2015, focusing on plaque adhesion, gingiva, and dental calculus deposition. Data analysis was performed on 1,998 children without any missing data, and the chi-square test was used to compare the variables.

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Photoacoustic (PA) technology can be used for non-invasive imaging of blood vessels. In this paper, we report on our prototype PA imaging system with a newly designed ultrasound sensor and its visualization performance of microvascular in animal. We fabricated an experimental system for animals using a high-frequency sensor.

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Background: Due to the COVID-19 pandemic, a state of emergency was declared in Japan and university classes were suspended, causing concern about the deterioration of the mental health of isolated students. This study aimed to understand students' mental health status during the COVID-19 pandemic and suggest measures to prevent depressive anxiety among them.

Method: Undergraduate and graduate students at one national and two private universities in the Kansai region were surveyed.

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Human milk oligosaccharides (HMOs), which are natural bifidogenic prebiotics, were recently commercialized to fortify formula milk. However, HMO assimilation phenotypes of bifidobacteria vary by species and strain, which has not been fully linked to strain genotype. We have recently shown that specialized uptake systems, particularly for the internalization of major HMOs (fucosyllactose [FL]), are associated with the formation of a -rich gut microbial community.

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Background: Lymphaticovenular anastomosis (LVA) is a minimally invasive surgical procedure used to treat lymphedema. Volumetric measurements and quality-of-life assessments are often performed to assess the effectiveness of LVA, but there is no method that provides information regarding postoperative morphological changes in lymphatic vessels and veins after LVA. Photoacoustic lymphangiography (PAL) is an optical imaging technique that visualizes the distribution of light-absorbing molecules, such as hemoglobin or indocyanine green (ICG), and provides three-dimensional images of superficial lymphatic vessels and the venous system simultaneously.

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Chronic infections are considered one of the most severe problems in skin wounds, and bacteria are present in over 90% of chronic wounds. is frequently isolated from chronic wounds and is thought to be a cause of delayed wound healing. Invariant natural killer T (iNKT) cells, unique lymphocytes with a potent regulatory ability in various inflammatory responses, accelerate the wound healing process.

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Intracerebral hemorrhage (ICH) is one of the most severe subtypes of stroke with high morbidity and mortality. Although a lot of drug discovery studies have been conducted, the drugs with satisfactory therapeutic effects for motor paralysis after ICH have yet to reach clinical application. Transient receptor potential vanilloid 4 (TRPV4), a Ca-permeable cation channel and activated by hypoosmolarity and warm temperature, is expressed in various cell types.

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A 72-year-old female complaining of back pain was diagnosed with IgG-κ multiple myeloma. After osteosynthesis for fracture of the left femoral shaft due to myeloma, she received bortezomib, melphalan, and prednisolone as an initial regimen for multiple myeloma, but discontinued it after three courses due to progressive disease. The patient subsequently received lenalidomide and dexamethasone as a second-line regimen for 2.

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Background Detailed visualization of the lymphatic vessels would greatly assist in the diagnosis and monitoring of lymphatic diseases and aid in preoperative planning of lymphedema surgery and postoperative evaluation. Purpose To evaluate the usefulness of photoacoustic imaging (PAI) for obtaining three-dimensional images of both lymphatic vessels and surrounding venules. Materials and Methods In this prospective study, the authors recruited healthy participants from March 2018 to January 2019 and imaged lymphatic vessels in the lower limbs.

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A man in his 60s visited the emergency department because of epigastric pain and vomiting. Noncontrast helical abdominal CT revealed a lipomatous mass on the right side of the lower esophagus. Caudal slices showed that the mass appeared to displace the gastric antrum causing gastric outlet obstruction.

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Chronic prostatitis / chronic pelvic pain syndrome (CP/CPPS) is commonly diagnosed in men younger than 50 years old. It is characterized by pelvic pain, voiding symptoms and sexual dysfunction. The considerable discomfort or pain experienced has a negative impact on the quality of life of patients and is a huge economic burden because of the high recurrence rate and the low cure rate.

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A multicenter randomized phase II study was conducted to evaluate the effects of Hochu-ekki-to (TJ-41) for reducing adverse reactions and increasing compliance with S-1 adjuvant therapy for advanced gastric cancer. The eligibility criteria were pathological stage II/III after R0 resection. Patients received adjuvant therapy with S-1 alone (group S) or S-1 with TJ-41 (group ST) for 1 year.

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A breast-specific photoacoustic imaging (PAI) system prototype equipped with a hemispherical detector array (HDA) has been reported as a promising system configuration for providing high morphological reproducibility for vascular structures in living bodies. To image the vasculature of human limbs, a newly designed PAI system prototype (PAI-05) with an HDA with a higher density sensor arrangement was developed. The basic device configuration mimicked that of a previously reported breast-specific PAI system.

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