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Article: Overview of Kenji Mori's pheromone synthesis series.

Takikawa, Hirosato / Kuwahara, Shigefumi

2023 Volume 48, Issue 1, Page(s) 1–10

Abstract: It was the late Professor Kenji Mori, the giant of pheromone synthesis and pioneer of pheromone stereochemistry, who laid the foundation for the practical application of insect pheromones, which play an important role in Integrated Pest Management, one ... ...

Abstract	It was the late Professor Kenji Mori, the giant of pheromone synthesis and pioneer of pheromone stereochemistry, who laid the foundation for the practical application of insect pheromones, which play an important role in Integrated Pest Management, one of the key concepts of agriculture in the 21st century. Therefore, it would be meaningful to retrace his achievements at this time, three and a half years after his death. In this review, we would like to introduce some of his notable synthetic studies from his
Language	English
Publishing date	2023-02-16
Publishing country	Japan
Document type	Journal Article
ZDB-ID	437867-2
ISSN	1348-589X ; 2187-0365 ; 0916-9962 ; 0385-1559
ISSN	1348-589X ; 2187-0365 ; 0916-9962 ; 0385-1559
DOI	10.1584/jpestics.D22-062
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Article ; Online: Granular C3 dermatosis-A report of two cases and a mini-review of literature.

Takayama, Eriko / Kuwahara, Saki / Yoshioka, Akiko / Tateishi, Chiharu / Hashimoto, Takashi

The Journal of dermatology

2024

Abstract: Granular C3 dermatosis (GCD) is characterized by bullous, erythematous, and eczematous skin lesions similar to dermatitis herpetiformis, and granular deposition of complement C3 and C5b-9 along the epidermal basement membrane zone (BMZ) by direct ... ...

Abstract	Granular C3 dermatosis (GCD) is characterized by bullous, erythematous, and eczematous skin lesions similar to dermatitis herpetiformis, and granular deposition of complement C3 and C5b-9 along the epidermal basement membrane zone (BMZ) by direct immunofluorescence (IF). Here, we present two cases of GCD with different clinical features. Case 1, a 49-year-old man, showed pruritic blisters and erythema of the extremities. Case 2, a 53-year-old woman, showed severely pruritic papules, erythema, and erosions on the entire body with scattered blisters, mainly on the lower extremities. Both patients showed mild eosinophilia on blood tests, subepidermal blisters and prominent eosinophilic infiltration in the upper dermis on histopathological examination, and granular BMZ deposition of C3, but not of immunoglobulins or other complement components, on direct IF. No circulating autoantibodies were detected on enzyme-linked immunosorbent assays, chemiluminescent enzyme immunoassays, indirect IF using 1 mol/L NaCl-split normal human skin, or immunoblotting. Diagnosis of GCD was made in both cases. Case 1 was successfully treated with topical steroids, oral minocycline, and nicotinamide without any recurrence of symptoms. Case 2 was treated with oral steroids and showed remarkable improvement, although mild pruritic papules remained. We reviewed 30 reported GCD cases, including the two cases presented here, since Hashimoto et al. first described GCD in 2016. GCD should be more widely recognized, and further accumulation and validation of cases are required.
Language	English
Publishing date	2024-05-06
Publishing country	England
Document type	Journal Article
ZDB-ID	800103-0
ISSN	1346-8138 ; 0385-2407
ISSN (online)	1346-8138
ISSN	0385-2407
DOI	10.1111/1346-8138.17257
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Book ; Online: Development and Application of a Detection System for a Novel Class of Gravitational-Wave Transients

Kuwahara, Soichiro / Cannon, Kipp

2023

Abstract: We previously described the development of a detection system for a novel class of transient gravitational-wave sources taking the form of Cherenkov-like bursts. Here, we have applied the system to the data of the LIGO/Virgo/KAGRA O3 science run, and ... ...

Abstract	We previously described the development of a detection system for a novel class of transient gravitational-wave sources taking the form of Cherenkov-like bursts. Here, we have applied the system to the data of the LIGO/Virgo/KAGRA O3 science run, and report a null result. The ad hoc waveform model is motivated by the conjectured emission of gravitational waves from a curvature source moving at super-luminal speed, and while there is no plausible natural or artificial source of such waves, we nevertheless use the null result to infer a tongue-in-cheek upper bound on the number density of near-Earth transits of spacecraft travelling at warp speed. The upper bound is parameterized in terms of the trajectory's impact parameter, the vehicle's engine power,and speed. These quantities can be connected to statements made in science fiction allowing us to translate the upper bound into a bound on the number density of specific types of spacecraft from, for example, Star Trek or Star Wars. Although most suitable for entertainment purposes, these constraints might find use being folded into a Bayesian inference type estimate on the number of extra-terrestrial civilizations in the galaxy.
Keywords	General Relativity and Quantum Cosmology
Subject code	551
Publishing date	2023-10-24
Publishing country	us
Document type	Book ; Online
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Article ; Online: Three-dimensional building of anisotropic gold nanoparticles under confinement in submicron capsules.

Yamada, Ryuichi / Kuwahara, Makoto / Kuwahara, Shota

Nanoscale advances

2023 Volume 5, Issue 21, Page(s) 5780–5785

Abstract: The low collision rate and contact time of gold nanoparticles (NPs) in solution afford a low welding probability, which hinders their welding structure, orientation, and dimension. Encapsulated anisotropic NPs, gold nanotriangles (AuNTs), were ... ...

Abstract	The low collision rate and contact time of gold nanoparticles (NPs) in solution afford a low welding probability, which hinders their welding structure, orientation, and dimension. Encapsulated anisotropic NPs, gold nanotriangles (AuNTs), were successfully assembled into a three-dimensional structure inside a permeable silica nanocapsule under light illumination to generate localized surface plasmon resonance (LSPR). AuNTs were trapped in the permeable silica nanocapsules and diffused in the nanospace because of copolymer release, which increased the contact probability of AuNTs and promoted the three-dimensional building of AuNTs. Electron energy loss mapping simulations revealed that the obtained three-dimensional AuNT structure exhibited spatially separated multiple LSPR modes with different energies of incident light, which are photophysically attractive beyond the facet-selective chemical growth of NPs, and postmodification for anchoring substances with site-selective attachment to the obtained structure will be applicable to expand the sensing design and class of substances for sensing.
Language	English
Publishing date	2023-09-06
Publishing country	England
Document type	Journal Article
ISSN	2516-0230
ISSN (online)	2516-0230
DOI	10.1039/d3na00683b
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Article ; Online: Depletion force optimization for high-purity gold nanotriangles prepared using different growth methods.

Yamada, Ryuichi / Kimura, Ryusei / Kuwahara, Shota

RSC advances

2023 Volume 13, Issue 46, Page(s) 32143–32149

Abstract: A homogeneous structural distribution in metal nanoparticle is commonly required for their application, and despite high-yield growth techniques, unavoidable structural heterogeneity remains a concern in metal nanoparticle synthesis. Gold nanotriangles ( ... ...

Abstract	A homogeneous structural distribution in metal nanoparticle is commonly required for their application, and despite high-yield growth techniques, unavoidable structural heterogeneity remains a concern in metal nanoparticle synthesis. Gold nanotriangles (AuNTs) were synthesized using seed-mediated and seedless growth methods. Recent advancements in high-yield synthesis processes have enabled easy handling of AuNTs, which exhibit unique localized surface plasmon resonance characteristics due to their anisotropic triangular form. The flocculation and subsequent precipitation technique was used to purify AuNTs of different sizes synthesized using seed-mediated and seedless growth methods. The optimal conditions for obtaining high-purity AuNTs were explored by introducing a high concentration of cetyltrimethylammonium chloride. Additionally, the depletion force necessary for achieving high-purity AuNTs was calculated to reveal variations in the required depletion forces for AuNTs synthesized using different growth techniques. The alternations in the size distribution of AuNTs during the flocculation step were tracked using dynamic light scattering, and the surface charge of AuNTs synthesized through different growth methods was evaluated by
Language	English
Publishing date	2023-11-02
Publishing country	England
Document type	Journal Article
ISSN	2046-2069
ISSN (online)	2046-2069
DOI	10.1039/d3ra05955c
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Article ; Online: Association between having a primary care physician and health behavioral intention in Japan: results from a nationwide survey.

Sugiyama, Kemmyo / Oshio, Takashi / Kuwahara, Susumu / Kimura, Hiromi

BMC primary care

2023 Volume 24, Issue 1, Page(s) 280

Abstract: Introduction: Introducing a primary care physician (Kakaritsuke-I: KI) system to improve the efficiency of the health care system has been controversial in Japan. This study aimed to determine the relevance of KI to an individual's health behavioral ... ...

Abstract	Introduction: Introducing a primary care physician (Kakaritsuke-I: KI) system to improve the efficiency of the health care system has been controversial in Japan. This study aimed to determine the relevance of KI to an individual's health behavioral intentions. Methods: We used data from a nationwide, population-based internet survey (N = 5,234) to conduct a cross-sectional regression analysis. Additionally, we used a propensity score matching method to mitigate the potential endogenous biases inherent in the decision to have a KI. Results: KI was positively associated with various behavioral intentions. For example, the probabilities of intending to eat a well-balanced diet and engaging in moderate exercise were 12.8 (95% confidence interval [CI]:9.5-16.1) percentage points and 7.2 (95% CI: 3.9-10.4) percentage points higher, respectively, among those with a KI than among those without a KI. A KI equally increased the likelihood of getting vaccinated against coronavirus (in November 2021) by 7.5 (95% CI: 5.2-9.8) percentage points. Conclusions: Although further analysis is needed to examine the effect of KI on health, the results of this study suggest the potential benefits of policy measures to promote the KI system.
MeSH term(s)	Humans ; Intention ; Physicians, Primary Care ; Japan ; Cross-Sectional Studies ; Surveys and Questionnaires
Language	English
Publishing date	2023-12-19
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	2731-4553
ISSN (online)	2731-4553
DOI	10.1186/s12875-023-02238-8
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Article ; Online: Evolutions of Self-Rated Health and Social Interactions during the COVID-19 Pandemic Affected by Pre-Pandemic Conditions: Evidence from a Four-Wave Survey.

Oshio, Takashi / Kimura, Hiromi / Nakazawa, Shingo / Kuwahara, Susumu

International journal of environmental research and public health

2023 Volume 20, Issue 5

Abstract: The Coronavirus disease 2019 (COVID-19) pandemic has affected individuals' self-rated health (SRH) and social interactions, but their evolution during the pandemic needs further investigation. The present study addressed this issue using longitudinal ... ...

Abstract	The Coronavirus disease 2019 (COVID-19) pandemic has affected individuals' self-rated health (SRH) and social interactions, but their evolution during the pandemic needs further investigation. The present study addressed this issue using longitudinal data from 13,887 observations of 4177 individuals obtained from a four-wave nationwide, population-based survey conducted between January and February 2019 (before the pandemic) and November 2022. We compared the evolutions of SRH and social interactions during the pandemic between individuals who interacted with others before the pandemic and those who did not. Three noteworthy findings were obtained. First, deterioration in SRH in response to the declared state of emergency was concentrated on individuals with no pre-pandemic interaction with others. Second, SRH generally improved during the pandemic, although the improvement was more remarkable among previously isolated individuals. Third, the pandemic has promoted social interactions among previously isolated individuals and reduced such chances among those who previously interacted with others. These findings underscore the importance of pre-pandemic social interactions as key determinants of responding to pandemic-related shocks.
MeSH term(s)	Humans ; COVID-19 ; Pandemics ; Social Interaction ; Surveys and Questionnaires
Language	English
Publishing date	2023-03-05
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph20054594
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Article: Pathological changes in various organs in HLA-B*57:01 transgenic mice with abacavir-induced skin eruption.

Kazaoka, Akira / Kumagai, Kazuyoshi / Matsushita, Junya / Aida, Tetsuo / Kuwahara, Saki / Aoki, Shigeki / Ito, Kousei

Toxicological research

2024 Volume 40, Issue 2, Page(s) 223–235

Abstract: Several patients with cutaneous adverse drug reactions exhibit extracutaneous organ damages, and it becomes severe in a few patients resulting in death due to multiorgan failure. Understanding the sequential changes in various organs in patients with ... ...

Abstract	Several patients with cutaneous adverse drug reactions exhibit extracutaneous organ damages, and it becomes severe in a few patients resulting in death due to multiorgan failure. Understanding the sequential changes in various organs in patients with cutaneous eruption following drug administration will help understand disease onset and progression, aiding the development of prevention strategies and interventions. Therefore, we aimed to understand the effects of abacavir (ABC) on various organs in patients with ABC-induced eruptions by evaluating its effects in a mouse model. We found pathological changes in various organs of HLA-B57:01 transgenic mice (B57:01-Tg) following oral administration of ABC (20 mg/body/day). B57:01-Tg exhibited a significant body weight decrease from day 1 of ABC administration, and reddening of the auricle was observed from day 5, and approximately 2/3 mice died by day 7. Histopathological examination revealed severe thymic atrophy after day 3, infiltration of inflammatory cells, predominantly lymphocytes with neutrophils, not only in the skin but also in the liver, kidney, and lung after day 5, and an increased number of lymphocytes with enlarged nuclei and granulocytic hematopoiesis were observed in the spleen after day 5. Blood chemistry revealed that albumin/globulin ratio was below 1.0 on day 5, reflecting a systemic inflammatory response, and the aspartate aminotransferase concentration rose to 193 ± 93.0 U/L on day 7, suggesting that cell damage may have occurred in various organs including liver accompanying inflammatory cell infiltration. These examinations of a mouse model of ABC-induced skin eruption show that disorders in various organs other than the skin should be considered and provide insights into the unexpected early systemic responses dependent on HLA-B57:01. Supplementary information: The online version contains supplementary material available at 10.1007/s43188-023-00220-1.
Language	English
Publishing date	2024-01-06
Publishing country	Singapore
Document type	Journal Article
ZDB-ID	2727978-9
ISSN	2234-2753 ; 1976-8257
ISSN (online)	2234-2753
ISSN	1976-8257
DOI	10.1007/s43188-023-00220-1
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Article ; Online: O-doped g-C

Tateishi, Ikki / Kuwahara, Shuhei / Furukawa, Mai / Katsumata, Hideyuki / Kaneco, Satoshi

Environmental technology

2023 , Page(s) 1–11

Abstract: Oxygen-doped g- ... ...

Abstract	Oxygen-doped g-C
Language	English
Publishing date	2023-11-30
Publishing country	England
Document type	Journal Article
ISSN	1479-487X
ISSN (online)	1479-487X
DOI	10.1080/09593330.2023.2283799
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Article ; Online: Enantioselective synthesis of the aglycone of burnettramic acid A.

Kuji, Kohei / Kawamoto, Misaki / Enomoto, Masaru / Kuwahara, Shigefumi / Meguro, Yasuhiro

Bioscience, biotechnology, and biochemistry

2023 Volume 87, Issue 12, Page(s) 1442–1452

Abstract: Enantioselective total synthesis of the aglycone of burnettramic acid A, an antifungal pyrrolizidinedione with a terminally mannosylated long acyl chain produced by Aspergillus fungi, has been achieved from a known carboxylic acid by a 14-step sequence. ... ...

Abstract	Enantioselective total synthesis of the aglycone of burnettramic acid A, an antifungal pyrrolizidinedione with a terminally mannosylated long acyl chain produced by Aspergillus fungi, has been achieved from a known carboxylic acid by a 14-step sequence. The key steps include 2 types of asymmetric alkylation, coupling of an acetylide intermediate with (S)-epichlorohydrin to provide an acetylenic epoxide in 1 pot, and the Birch reduction to effect desulfonylation, semi-reduction of triple bond, and debenzylation in a concurrent manner. Good agreement of the synthetic aglycone with naturally occurring one in 1H and 13C nuclear magnetic resonance (NMR) spectra, coupled with previously reported unambiguous stereochemical assignment of the sugar moiety, has confirmed the structure of burnettramic acid A.
MeSH term(s)	Stereoisomerism ; Alkylation
Language	English
Publishing date	2023-09-11
Publishing country	England
Document type	Journal Article
ZDB-ID	1106450-x
ISSN	1347-6947 ; 0916-8451
ISSN (online)	1347-6947
ISSN	0916-8451
DOI	10.1093/bbb/zbad129
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