Takahisa Kawaguchi's research while affiliated with Kyoto University and other places

Publications (13)

Article
Rationale: There have been meta-analyses that showed reduced retinal nerve fiber layer (RNFL) thickness, which is a surrogate marker of glaucoma, in patients with obstructive sleep apnea (OSA). However, the sample sizes in these reports were small (<300) and the mechanism of RNFL thinning in patients with OSA was not revealed. Objectives: To inv...
Article
Full-text available
The incidence of atrial fibrillation (AF) and risk of cardiovascular events are reportedly higher in patients with primary aldosteronism (PA) than essential hypertension. However, associated factors of comorbid AF and cardiovascular events in PA patients after PA treatment remain unclear. This nationwide registration study included PA patients ≥20...
Article
Previous evidence suggests the association of lower educational attainment and depressive symptoms with tooth loss. The hypothesis of this study was that these factors may exacerbate the effect on tooth loss beyond the sum of their individual effects. We aimed to clarify the independent and interactive effects of educational attainment and depressi...
Article
There are more than 300 research groups for rare diseases in Japan. Although various clinical and genomic information of patients are being collected by the groups, the information is managed individually by each research group and the current practices for managing and sharing research data are not very efficient. Since "rare diseases" are literal...
Article
Study Objectives The individual prevalence of sleep-disordered breathing (SDB), short sleep duration, and obesity is high and increasing. The study aimed to investigate potential associations between SDB, objective sleep duration, obesity, diabetes and hypertension across genders, and the effect of pre- or post-menopausal status. Methods A cross-s...
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Full-text available
Genome-wide association studies (GWAS) performed mostly in populations of European and Hispanic ancestry have confirmed an inherited genetic basis for childhood acute lymphoblastic leukemia (ALL), but these associations are less clear in other races/ethnicities. DNA samples from ALL patients (aged 0-19 years) previously enrolled onto a Tokyo Childr...
Article
Background L-asparaginase is important in successfully treating childhood acute lymphoblastic leukemia (ALL). However, some patients experience hypersensitivity, mechanisms for which have not been fully elucidated. Previous studies, predominately based on populations of European ancestry, have described L-asparaginase hypersensitivity associations...
Article
Background: Peripheral sensory neuropathy (PSN) is a dose-limiting toxicity of oxaliplatin-based chemotherapy. Several genetic markers have been shown to predict oxaliplatin-induced PSN; however, results remain to be validated in a large-scale and prospective pharmacogenomics study. Patients and methods: Among 882 patients enrolled in the JFMC41...
Article
Scrutiny of the human genome through evaluation of common genetic variants has revealed hundreds of disease susceptibility loci. In childhood acute lymphoblastic leukemia (ALL), six regions that have replicated in several populations are now considered known susceptibility loci (ARID5B, IKZF1, CEBPE, CDKN2A, PIP4K2A, and GATA3), but their effects h...
Article
It has been well known that inter-individual differences exist in response to chemotherapeutic drugs. A variety of factors including age, gender, intake of other drugs, and inheritance can affect the response to chemotherapeutic drugs. Development of personalized medicine, which enables physicians to tailor the dose to each patient, is urgently nee...

Citations

... Regarding study design, 11 (42%) were cross-sectional, five (8%) were cohort, four (15%) were case-controls, two (8%) were descriptive, two (8%) were controlled clinical trials, one (4%) was a randomized controlled trial, and one (4%) used mixed methods (qualitative and descriptive). Using the EPHPP tool to assess the methodological rigor of the studies 59 we found one study 77 with no weak characterizations, four [78][79][80][81] with one, and the remaining studies had two or more (see Table 4). ...
... The most extensive transethnic replication in childhood cancer has been done within ALL. To explore the role that SNP frequencies may play in explaining differences observed among incidence rates our findings, we obtained allele frequencies and corresponding ORs and 95% CIs from the published literature [38][39][40][41][42][43][44][45] among East Asians, SE Asians, and European populations and summarized the information in Figure 3. Several of the SNPs which have been reported to have the strongest effect in ALL, including ARID5B, IKZF1, CEBPE, CDKN1A/B, PIP4K2A, and GATA3, are included in the figure. All ORs reported in European populations show significant associations with ALL. ...
... It is worth mentioning that in a study including 472 Japanese children with ALL who were treated on a protocol that included E. coli derived asparaginase, the authors followed a candidate-gene approach aimed at replicating the associations found with GRIA1 rs4958351, NFATC2 rs6021191, and ANSN rs3832526. The authors reported no significant association between any of the variants and HSRs which suggests that the role of these variants might be influenced by ethnic specific differences in genetic structure surrounding them [40] . ...
... There are larger prospective cohorts with extensive evaluations, such as 266 the Hisayama study 18,19 and the Nagahama study. 20 We performed 14,000 extensive 267 evaluations, i.e., there were 14,000 participants who visited the CSC at both baseline and 268 2nd period surveys. These numbers were comparable to the aforementioned studies. ...
... Our previous study of targeted loci conducted within the Tokyo Children Cancer Study Group (TCCSG) showed that risk associations for SNPs in ARID5B, IKZF1 and PIP4K2A transfer to the Japanese population. 4 As a next step, this current study included two independent GWAS series assembled through TCCSG and the Japanese Pediatric Patients included in the TCCSG and JPLSG series comprised predominately of B-cell ALL (TCCSG, 93%; JPLSG, 100%), greater numbers of males (TCCSG, 52%; JPLSG, 58%) than females, and showed the majority to be between 1 and 6 years of age at (TCCSG, 69%; JPLSG, 57%). We first performed a discovery analysis in the TCCSG series and observed a novel association represented by SNP rs116977518 (OR=1.99, ...