Publications by authors named "Shin-Ya Kawashiri"

Insights gained during the coronavirus disease 2019 pandemic has underscored the critical role played by both innate and adaptive immune responses in determining the severity of diseases. This newfound understanding holds significant potential to bring about a paradigm shift in the diagnosis, treatment, and management of autoimmune conditions. Advanced technologies that are emerging in the field are expected to play a pivotal role in this transformation.

View Article and Find Full Text PDF

Circulating CD34-positive cell count is inversely associated with height loss. It acts as an indicator of endothelial repair activity. In conjunction with CD34-positive cells, platelets contribute to endothelial repair.

View Article and Find Full Text PDF

This exploratory study aimed to examine the impact of abatacept treatment on bone structure in patients with rheumatoid arthritis (RA) using high-resolution peripheral quantitative computed tomography (HR-pQCT). RA patients initiating either abatacept or newly introduced csDMARDs were enrolled in this prospective, non-randomized, two-group study. Bone structure in the 2nd and 3rd metacarpal heads was assessed using HR-pQCT at 0, 6, and 12 months after enrollment.

View Article and Find Full Text PDF

Although serum uric acid (UA) has been reported to be positively associated with increased arterial stiffness as evaluated by cardio-ankle vascular index (CAVI), UA also has an antioxidative effect that prevents endothelial damage. Therefore, the status of endothelial repair induced by endothelial damage might affect the correlation between UA and CAVI. To clarify the correlation between UA and CAVI in relation to endothelial repair activity, we performed a cross-sectional study with 246 Japanese men aged 60-69 years undergoing a general health check-up.

View Article and Find Full Text PDF

Aim: To clarify the association between genetic factors related to angiogenesis and feeling of incomplete bladder emptying among older community-dwelling individuals.

Method: A cross-sectional study of 1762 (607 men and 1155 women) older Japanese individuals aged 60-79 years with data on rs3025020 was conducted, because vascular endothelial growth factor (VEGF), which contributes to the progression of angiogenesis, has been reported to be positively associated with the minor allele (T) of polymorphism rs3025020.

Results: In the study population, 155 (103 men and 52 women) had feeling of incomplete bladder emptying.

View Article and Find Full Text PDF

Although fast eating speed has been associated with cardiovascular risk factors, no studies have reported an association between fast eating speed and atherosclerosis as evaluated by carotid intima-media thickness (CIMT). Rapid glucose ingestion is known to cause glucose spikes, which may accelerate atherogenesis and increase levels of growth differentiation factor 15 (GDF-15). Therefore, GDF-15 levels may influence the association between fast eating speed and atherosclerosis.

View Article and Find Full Text PDF

Objectives: We aimed to evaluate the effects of age on clinical characteristics and outcomes in biologic or targeted synthetic disease-modifying antirheumatic drug (b/tsDMARD)-naïve patients with rheumatoid arthritis (RA).

Methods: We analysed the cases of 234 Japanese b/tsDMARD-naïve RA patients who underwent b/tsDMARD treatment in a multicentre ultrasound prospective observational cohort. We compared the clinical characteristics at baseline and outcomes at 12 months between those aged ≥60 years and those <60 years.

View Article and Find Full Text PDF

Atherosclerosis and height loss are each reportedly associated with cardiovascular disease. However, no studies have found an association between atherosclerosis and height loss. A retrospective study of 2435 individuals aged 60-89 years who underwent annual health check-ups was conducted.

View Article and Find Full Text PDF
Article Synopsis
  • Glucocorticoids can effectively treat rheumatoid arthritis (RA) when used at low doses, but their impact on subsequent treatments with biologic and targeted synthetic drugs (b/tsDMARDs) needs evaluation.
  • In a study of 307 RA patients, 160 were on glucocorticoids; those treated with these medications showed higher disease activity and less effective treatment responses after 12 months compared to those who were not.
  • The findings suggest that patients requiring glucocorticoids may be in poorer health, which could explain their diminished response to b/tsDMARDs, highlighting the need to carefully consider glucocorticoid use during RA treatment.
View Article and Find Full Text PDF
Article Synopsis
  • * Out of 672 patients analyzed, only 9 (1.3%) developed complicated NTM infections, leading to a higher mortality rate in those patients compared to others.
  • * The findings suggest that while NTM complications are rare among those on biologics, they can be severe, especially in patients taking higher doses of corticosteroids, necessitating vigilant monitoring even in the absence of positive MAC antibody tests.
View Article and Find Full Text PDF
Article Synopsis
  • The study explored the relationship between cancer incidence in patients with systemic lupus erythematosus (SLE) and the use of calcineurin inhibitors (CNIs) like cyclosporine and tacrolimus, amid conflicting prior evidence on cancer risk in these patients.
  • It analyzed data from 704 SLE patients using the standardized incidence ratio (SIR), considering various factors such as age, sex, treatment history, and comorbidities.
  • The findings indicated no significant increase in cancer risk related to CNI use, with a SIR of 1.08 and cancer complications occurring in only 5.4% of patients, primarily gynecological malignancies.
View Article and Find Full Text PDF

Objectives: The link between the HLA-DRB1 locus and the risk of rheumatoid arthritis (RA) shown in genome-wide association studies strengthens the shared epitope (SE) hypothesis. We aimed to assess the impact of the double dose of the SE (double SE) on RA and explore its clinical associations, including the response to abatacept.

Methods: We evaluated RA patients treated with csDMARDs or abatacept for HLA-DRB1 typing, clinical characteristics at baseline, and disease activity and ultrasound findings over 12 months.

View Article and Find Full Text PDF

To maintain normal level of thyroid hormone, especially for free thyroxine (FT4), individuals with latent thyroid gland damage might have required higher thyroid stimulating hormone (TSH) than those without latent thyroid gland damage. Anti-thyroid peroxidase antibody (TPO-Ab) is a main cause of auto-immune thyroiditis, and therefore euthyroid individuals positive for TPO-Ab might have latent damage to the thyroid gland. Therefore, the association between TSH values and TPO-Ab positivity may be useful to determine the influence of latent thyroid gland damage on requirement of TSH.

View Article and Find Full Text PDF

In an aging society, it is important to visualize the conditions of people living with diseases or disabilities, such as frailty and sarcopenia, and determine the environmental and genetic factors underlying such conditions. Atherosclerosis and arterial stiffness are key conditions between these factors and noncommunicable diseases. In 2014, we launched a population-based prospective open-cohort study, the Nagasaki Islands Study (NaIS), which was conducted in Goto City, located in the remote islands of Nagasaki Prefecture, Japan, mostly involving middle-aged and older residents.

View Article and Find Full Text PDF

Growth differentiation factor 15 (GDF-15), which modulates cellular energy balance, is reported to be positively associated with cardiovascular disease. However, there have been no reports about the association between serum GDF-15 concentration and atherosclerosis as evaluated by carotid intima-media thickness (CIMT) among the general population. A cross-sectional study of 536 Japanese individuals aged 60 to 69 years was conducted.

View Article and Find Full Text PDF

Introduction: To allow the identification of IgG4-related disease (IgG4-RD) from a subclinical phase as it is important to understand the risk of elevated serum IgG4 levels. We planned to evaluate serum IgG4 levels in the participants of the Nagasaki Islands Study (NaIS), a large-scale health checkup cohort study.

Methods: This study included 3,240 individuals who participated in the NaIS between 2016 and 2018 and consented to participate in the study.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effectiveness of filgotinib, a selective JAK1 inhibitor, compared to tocilizumab, an interleukin-6 inhibitor, in treating rheumatoid arthritis (RA) patients who haven’t responded well to methotrexate (MTX).
  • This is a multicenter, randomized, open-label clinical trial involving 400 participants, monitored over 52 weeks to assess disease activity and improvement.
  • The primary goal is to determine if filgotinib can provide similar results to tocilizumab in reducing disease symptoms, measured by clinical indices and ultrasound, especially focusing on the proportion of patients reaching the American College of Rheumatology 50 response at week 12.
View Article and Find Full Text PDF

Aggressive endothelial repair results in the progression of both structural and functional atherosclerosis, while insufficient endothelial repair worsens functional but not structural atherosclerosis. Aging increases the risk of inadequate endothelial repair. Since low-density lipoprotein cholesterol (LDLc) activates endothelial repair, LDLc may be positively associated with structural atherosclerosis but inversely associated with functional atherosclerosis in older individuals.

View Article and Find Full Text PDF

Height is inversely associated with inflammation that stimulates endothelial repair. In our previous study involving elderly men aged 60-69 years, we found that active arterial wall thickening, which is known as the process of endothelial repair, requires CD34-positive cells. As thyroid hormone regulates CD34-positive cell production and as the absence of thyroid cysts might indicate latent damage in the thyroid, the status of thyroid cysts possibly influences the association between height and active arterial wall thickening.

View Article and Find Full Text PDF

Background: This exploratory study compared the inhibition of bone erosion progression in rheumatoid arthritis (RA) patients treated with a conventional synthetic disease-modifying anti-rheumatic drug (csDMARD) plus denosumab versus csDMARD therapy alone and investigated the effects of denosumab on bone micro-architecture and other bone-related parameters using high-resolution peripheral quantitative computed tomography (HR-pQCT).

Methods: In this open-label, randomized, parallel-group study, patients with RA undergoing treatment with a csDMARD were randomly assigned (1:1) to continue csDMARD therapy alone or to continue csDMARDs with denosumab (60-mg subcutaneous injection once every 6 months) for 12 months. The primary endpoint was the change from baseline in the depth of bone erosion, measured by HR-pQCT, in the second and third metacarpal heads at 6 months after starting treatment.

View Article and Find Full Text PDF

We encountered a 78-year-old Japanese man with IgG4-related sialoadenitis complicated with marked eosinophilia. We diagnosed him with IgG4-RD (related disease) with a submandibular gland tumor, serum IgG4 elevation, IgG4-positive plasma cell infiltration, and storiform fibrosis. During follow-up after total incision of the submandibular gland, the peripheral eosinophil count was markedly elevated to 29,480/μL.

View Article and Find Full Text PDF

Reactivation of Epstein-Barr virus (EBV) is associated with the etiopathogenesis of a broad spectrum of diseases. This study aimed to investigate the association between psychological distress and EBV serological reactivation among community-dwelling older people and assess the role of sex differences in this association. This population-based cross-sectional survey was conducted among individuals who underwent annual health checkups (N = 2,821; median age 72.

View Article and Find Full Text PDF