Publications by authors named "Kawamoto D"

Oral bacteria are implicated not only in oral diseases but also in gut dysbiosis and inflammatory conditions throughout the body. The periodontal pathogen () often occurs in complex oral biofilms with (), and this interaction might influence the pathogenic potential of this pathogen. This study aims to assess the impact of oral inoculation with , , and their association (+) on alveolar bone loss, oral microbiome, and their potential effects on intestinal health in a murine model.

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Objective: This study aimed to evaluate the effect of antimicrobial photodynamic therapy (aPDT) and the use of probiotics on the treatment of halitosis.

Methods: Fifty-two participants, aged from 18 to 25 years, exhaling sulfhydride (H2S) ≥ 112 ppb were selected. They were allocated into 4 groups (n = 13): Group 1: tongue scraper; Group 2: treated once with aPDT; Group 3: probiotic capsule containing Lactobacillus salivarius WB21 (6.

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Article Synopsis
  • Periodontitis is caused by an imbalance in oral bacteria, leading to inflammation and bone loss, which researchers investigated using a murine model.
  • The study assessed the effects of the probiotic LA5 on both bone loss and changes in the oral and gut microbiomes after infection with periodontopathic bacteria.
  • Results showed that LA5 reduced bone loss and countered dysbiosis in the microbiomes, suggesting its potential as a treatment for periodontitis.
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The benefits of probiotics on dysbiotic microbiomes and inflammation are dependent on the tested strain, host factors, and the resident microbiome. There is limited knowledge on the effects of probiotics in -associated periodontitis. Thus, LA5 (LA5) was orally inoculated for 30 days in C57Bl/6 mice infected with JP2 (Aa) and (Sg).

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Introduction: Lenvatinib and sorafenib are key therapeutic agents for hepatocellular carcinoma (HCC). However, there are no useful biomarkers for selecting molecular-targeted agents (MTAs). Skeletal muscle volume is associated with the clinical outcomes in these patients.

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  • A retrospective study analyzed 154 patients with unresectable hepatocellular carcinoma (HCC) to identify factors that predict the effectiveness of the treatment combination of atezolizumab and bevacizumab (atezo/bev).
  • In patients with high levels of alpha-fetoprotein (AFP), a notable decrease in AFP levels was linked to a better treatment response. Conversely, in patients with low AFP levels, a baseline des-gamma-carboxy prothrombin (DCP) level below a certain threshold was a positive indicator.
  • Additionally, an increase in AFP levels after three weeks and the presence of extrahepatic spread were linked to worse outcomes in the high-AFP group, while certain criteria known as
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Background: The development of molecular targeted agents (MTAs) has changed the treatment strategy for hepatocellular carcinoma (HCC). However, currently, there are no established predictive biomarkers for the treatment efficacy of MTAs. Previously, we developed a novel liquid biopsy test for HCC screening using sensitive methylated DNA testing of septin 9 gene (SEPT9).

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Aim: Primary hepatic angiosarcoma (PHA) is extremely rare, and its imaging findings are similar to those of other liver tumors including hepatocellular carcinoma (HCC). Here, we report a case of hepatitis C virus (HCV)-related HCC followed by PHA that showed remarkable clinical response to atezolizumab plus bevacizumab (Atezo/Bev) therapy.

Case Presentation: A 78-year-old man with recurrent HCC had a liver tumor with lymphadenopathy.

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Background: We previously reported liver stiffness (LS) as a prognostic predictor of portosystemic shunt (PSS) occlusion. This study aims to reinvestigate the predictive factors of the model for end-stage liver disease-sodium (MELD-Na) score amelioration following balloon-occluded retrograde transvenous obliteration (BRTO) and to evaluate the postoperative prognoses of patients with portal hypertension by using newly identified factors.

Methods: Seventy-five patients who underwent BRTO between 2008 and 2021 were retrospectively enrolled.

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The isoflavone (3)-vestitol, obtained from red propolis, has exhibited anti-inflammatory, antimicrobial, and anti-caries activity; however, few manuscripts deal with its anti-inflammatory mechanisms in macrophages. The objective is to elucidate the anti-inflammatory mechanisms of (3)-vestitol on those cells. Peritoneal macrophages of C57BL6 mice, stimulated with lipopolysaccharide, were treated with 0.

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Probiotics may be considered as an additional strategy to achieve a balanced microbiome in periodontitis. However, the mechanisms underlying the use of probiotics in the prevention or control of periodontitis are still not fully elucidated. This study aimed to evaluate the effect of two commercially available strains of lactobacilli on gingival epithelial cells (GECs) challenged by .

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Recent advances in antiviral therapy have enabled control of the hepatitis virus; however, these do not completely eliminate the pathological condition of liver disease, and portal hypertension remains a clinical problem. We herein report a case of hepatitis B virus/hepatitis C virus (HBV/HCV)-induced decompensated liver cirrhosis for which total management consisting of interventional radiology and endoscopy, based on the evidence of our clinical studies, followed by antiviral therapy for co-infection with HBV and HCV was successful. This case clearly indicates the effective timing of total management, suggesting that it prolongs the vital prognosis in addition to improving the hepatic function.

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() is abundant within the microbial dysbiotic community of some patients with periodontitis. outer membrane protein 29 (OMP29), a member of the OMPA family, mediates the invasion of to gingival epithelial cells (GECs). This study evaluated the effect of OMP29 and its paralogue OMP29 on the response of GECs to .

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Article Synopsis
  • Inflammation influences microbial communities, yet its interaction with microorganisms in periodontitis is not well understood, prompting a study on the oral and fecal microbiomes of patients with the disease.
  • The research involved nine patients with stage 3 periodontitis and nine healthy controls, analyzing the composition of their oral biofilms and fecal samples via DNA sequencing, alongside correlating these findings with inflammatory markers in saliva.
  • Results showed significant differences in microbial diversity, with periodontitis patients exhibiting higher levels of harmful bacteria in both oral and fecal samples, and dysbiosis linking specific microbes to inflammatory responses, indicating a complex relationship between immune response and microbial composition in periodontitis.
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Plant GH19 chitinases have several loop structures, which may define their enzymatic properties. Among these loops, the longest loop, Loop-III, is most frequently conserved in GH19 enzymes. A GH19 chitinase from the moss Bryum coronatum (BcChi-A) has only one loop structure, Loop-III, which is connected to the catalytically important β-sheet region.

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Aim: This study aimed to demonstrate the feasibility of identifying candidates of portopulmonary hypertension (PoPH) from general portal hypertension patients based on chest computed tomography (CT) results.

Methods: One hundred and thirty patients with portal hypertension who had undergone interventional radiology therapies at our hospital between August 2011 and July 2021 were included, and preoperative clinical data were collected. Suspicious PoPH was defined as main pulmonary artery diameter (mPA-D) ≥ 29 mm or the ratio of mPA-D to ascending aorta diameter (mPA-D/aAo-D) ≥ 1.

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  • Periodontitis is caused by an imbalance in the oral microbiome, and certain probiotics can potentially restore this balance and improve immune responses to manage the disease.
  • In research on mice with induced periodontitis, two probiotic strains were tested; one (162) showed the ability to reduce bone loss, while the other (110) did not prevent inflammation and even increased some inflammatory markers.
  • The findings suggest that not all probiotics are equally effective for periodontal health, highlighting strain-specific actions, with 162 being better suited for controlling periodontitis than 110.
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Why does the adsorption and concentration of inorganic chemical species proceed at aqueous-solid interfaces? In this review paper, we discuss the use of X-ray chemical state analysis to elucidate the intrinsic adsorption mechanism. Based on the chemical states of the species adsorbed to solids as determined by X-ray chemical state analysis, possible adsorption mechanisms are discussed. The driving forces of adsorption are represented by the Gibbs free energy change (ΔG = ΔG + ΔG) resulting from the formation of covalent bonds between metal ions (M) in metal oxides or hydroxides and adsorbed species (X) (M-O-X bond, ΔG) and the formation of new phases consisting of M and X (ΔG).

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Periodontitis is characterized by a dysbiotic microbial community and treatment strategies include the reestablishment of symbiosis by reducing pathogens abundance. Aggregatibacter actinomycetemcomitans (Aa) is frequently associated with rapidly progressing periodontitis. Since the oral ecosystem may be affected by metabolic end-products of bacteria, we evaluated the effect of soluble compounds released by probiotic lactobacilli, known as postbiotics, on Aa biofilm and expression of virulence-associated genes.

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Candidemia is a life-threatening fungal infection among patients undergoing long-term intravenous catheterization, hematopoietic stem cell transplantation, or immunosuppressive therapy, as well as patients with severe immunodeficiency or cancer. Endophthalmitis is a rare but severe form of ocular inflammation caused by infection of the intraocular cavity, which can lead to irreversible visual loss if not treated properly and promptly. The initial manifestation typically involves chorioretinitis, which requires early diagnosis and appropriate treatment.

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  • A study examined the oral and fecal microbiomes of Afro-descendants with Grade C/molar-incisor pattern periodontitis (GC/MIP) compared to healthy controls to understand microbial complexity.
  • Results indicated that individuals with GC/MIP had a higher presence of opportunistic bacteria and periodontopathogens, alongside a reduction of beneficial microbes in both affected and healthy gum sites.
  • The findings suggest that the dysbiosis of the microbiome in GC/MIP patients extends beyond diseased areas, highlighting the need for targeted strategies in periodontal treatment and monitoring.
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Background And Objective: The potential of probiotics on the prevention and control of periodontitis and other chronic inflammatory conditions has been suggested. and species influence interaction with gingival epithelial cells (GECs) but may not act in a unique way. In order to select the most appropriate probiotic against , we aimed to evaluate the effect of several strains on biofilm formation and transcription virulence-associated factors (PgVAFs).

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Clinical features suggest differences in immune response among periodontitis forms, albeit a large number of cytokines and chemokines remain to be evaluated. The saliva is an available source of mediators and its analysis would be valuable in order to understand pathophysiological differences. The objective of this study was analyze chemokines/cytokines profile in whole saliva of individuals with severe periodontitis (Stage III) presenting moderate [Grade B; GB] or rapid progression rate with a localized incisor-molar pattern [Grade C; GC/IMP].

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An effective method for removing selenium (Se) from water is required from the viewpoint of environmental preservation. To establish this method, a cation exchange resin that adsorbed ferric ions was applied as an adsorbent. In this study, the adsorption behavior of Se to the adsorbent was examined by both batch and column methods.

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