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https://www.readbyqxmd.com/read/28943548/afatinib-therapy-for-brain-metastasis-aggravated-by-a-reduction-in-the-dose-of-erlotinib-due-to-the-development-of-hepatotoxicity
#1
Yumie Yamanaka, Akimasa Sekine, Terufumi Kato, Hideaki Yamakawa, Satoshi Ikeda, Tomohisa Baba, Tae Iwasawa, Koji Okudela, Takashi Ogura
We report an 80-year-old woman with EGFR-mutant lung adenocarcinoma with multiple brain metastases (BMs). All lesions including BM showed a successful resolution after initiating daily 150 mg erlotinib. However, a grade 2 bilirubin-increase developed, and it was necessary to reduce the dose of erlotinib to 50 mg every other day, which aggravated BM. Switching erlotinib to afatinib led to the resolution of BM without an increase in the bilirubin level. Our results indicate that afatinib is an important treatment option when erlotinib-induced hepatotoxicity develops, regardless of the patients' age...
September 25, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28943251/transfer-of-a-mouse-artificial-chromosome-into-spermatogonial-stem-cells-generates-transchromosomic-mice
#2
Takashi Shinohara, Kanako Kazuki, Narumi Ogonuki, Hiroko Morimoto, Shogo Matoba, Kei Hiramatsu, Kazuhisa Honma, Teruhiko Suzuki, Takahiko Hara, Atsuo Ogura, Mitsuo Oshimura, Mito Kanatsu-Shinohara, Yasuhiro Kazuki
The introduction of megabase-sized large DNA fragments into the germline has been a difficult task. Although microcell-mediated chromosome transfer into mouse embryonic stem cells (ESCs) allows the production of transchromosomic mice, ESCs have unstable karyotypes and germline transmission is unreliable by chimera formation. As spermatogonial stem cells (SSCs) are the only stem cells in the germline, they represent an attractive target for germline modification. Here, we report successful transfer of a mouse artificial chromosome (MAC) into mouse germline stem cells (GSCs), cultured spermatogonia enriched for SSCs...
September 18, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28936704/extraction-of-the-subpleural-lung-region-from-computed-tomography-images-to-detect-interstitial-lung-disease
#3
Tae Iwasawa, Yuma Iwao, Tamiko Takemura, Koji Okudela, Toshiyuki Gotoh, Tomohisa Baba, Takashi Ogura, Mari S Oba
PURPOSE: To quantify lesions in the subpleural lung region (SubPL) on computed tomography (CT) images and to evaluate whether they are useful for detecting interstitial lung disease (ILD). MATERIALS AND METHODS: The subjects were 40 patients with idiopathic pulmonary fibrosis (IPF) diagnosed by multidisciplinary methods and 35 age-matched patients without ILDs. The lungs and SubPL were extracted from CT images using a Gaussian histogram normalized correlation system and evaluated for the mean CT attenuation value (CTmean) and the percentage of high attenuation area (%HAA), exceeding -700 Hounsfield units...
September 21, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28935744/draft-genome-sequence-of-rubricoccus-marinus-sg-29-t-a-marine-bacterium-within-the-family-rhodothermaceae-which-contains-two-different-rhodopsin-genes
#4
Yu Nakajima, Susumu Yoshizawa, Sanghwa Park, Yohei Kumagai, Shu-Kuan Wong, Yoshitoshi Ogura, Tetsuya Hayashi, Kazuhiro Kogure
Here, we report the draft genome sequence of Rubricoccus marinus SG-29(T), a bacterium isolated from the western North Pacific Ocean. R. marinus SG-29(T) possesses two different types of rhodopsin genes and belongs to the family Rhodothermaceae, with which halophilic, thermophilic, and marine bacteria are associated.
September 21, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28930672/histone-h3-methylated-at-arginine-17-is-essential-for-reprogramming-the-paternal-genome-in-zygotes
#5
Yuki Hatanaka, Takeshi Tsusaka, Natsumi Shimizu, Kohtaro Morita, Takehiro Suzuki, Shinichi Machida, Manabu Satoh, Arata Honda, Michiko Hirose, Satoshi Kamimura, Narumi Ogonuki, Toshinobu Nakamura, Kimiko Inoue, Yoshihiko Hosoi, Naoshi Dohmae, Toru Nakano, Hitoshi Kurumizaka, Kazuya Matsumoto, Yoichi Shinkai, Atsuo Ogura
At fertilization, the paternal genome undergoes extensive reprogramming through protamine-histone exchange and active DNA demethylation, but only a few maternal factors have been defined in these processes. We identified maternal Mettl23 as a protein arginine methyltransferase (PRMT), which most likely catalyzes the asymmetric dimethylation of histone H3R17 (H3R17me2a), as indicated by in vitro assays and treatment with TBBD, an H3R17 PRMT inhibitor. Maternal histone H3.3, which is essential for paternal nucleosomal assembly, is unable to be incorporated into the male pronucleus when it lacks R17me2a...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28924106/intravenous-immunoglobulin-monotherapy-for-granulomatous-lymphocytic-interstitial-lung-disease-in-common-variable-immunodeficiency
#6
Mizue Hasegawa, Fumikazu Sakai, Asako Okabayashi, Akitoshi Sato, Naoko Yokohori, Hideki Katsura, Chihiro Asano, Toshiko Kamata, Eitetsu Koh, Yasuo Sekine, Kenzo Hiroshima, Takashi Ogura, Tamiko Takemura
Common variable immunodeficiency (CVID) is a heterogeneous subset of immunodeficiency disorders. Recurrent bacterial infection is the main feature of CVID, but various non-infectious complications can occur. A 42-year-old woman presented with cough and abnormal chest X-ray shadows. Laboratory tests showed remarkable hypogammaglobulinemia. Computed tomography revealed multiple consolidation and nodules on the bilateral lung fields, systemic lymphadenopathy, and splenomegaly. A surgical lung biopsy specimen provided the final diagnosis of lymphoproliferative disease in CVID, which was grouped under the term granulomatous lymphocytic interstitial lung disease...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28916326/are-wireless-electronic-stethoscopes-useful-for-respiratory-rate-monitoring-during-intravenous-sedation
#7
Keiko Morimoto, Yukako Tsutsui, Shin Ogura, Katsuhisa Sunda
PURPOSE: Wireless stethoscopes can measure respiratory rate noninvasively and continuously, but there are no reports of their use during dental treatment. This study evaluated the usefulness of wireless stethoscopes during dental procedures requiring intravenous sedation (IVS). MATERIALS AND METHODS: This study was a prospective cohort study. The study sample consisted of dental patients who received IVS by propofol or midazolam administration at the Nippon Dental University Hospital (Tokyo, Japan)...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28913565/a-retrospective-analysis-of-ramucirumab-monotherapy-in-previously-treated-japanese-patients-with-advanced-or-metastatic-gastric-adenocarcinoma
#8
Satoshi Murahashi, Daisuke Takahari, Takeru Wakatsuki, Naoki Fukuda, Takashi Ichimura, Mariko Ogura, Masato Ozaka, Eiji Shinozaki, Izuma Nakayama, Tomohiro Matsushima, Hiroki Osumi, Keisho Chin, Kensei Yamaguchi
BACKGROUND: The REGARD trial demonstrated that ramucirumab monotherapy improved both overall survival (OS) and progression-free survival (PFS) compared with best supportive care plus placebo as second-line treatment for patients with advanced gastric cancer. However, the efficacy and safety of ramucirumab monotherapy for previously treated Japanese patients with advanced gastric cancer remains unknown. METHODS: Previously treated Japanese patients with advanced gastric cancer who received ramucirumab monotherapy between June 2015 and March 2016 at the Cancer Institute Hospital were enrolled in the study...
September 14, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28912662/long-term-changes-in-muscles-around-the-knee-joint-after-acl-resection-in-rats-comparisons-of-acl-resected-contralateral-and-normal-limb
#9
Mahiro Ohno, Hiroto Fujiya, Katsumasa Goto, Mitsutoshi Kurosaka, Yuji Ogura, Kanaka Yatabe, Takaaki Kudo, Hajime Kobayashi, Hisateru Niki, Haruki Musha
The purpose of this study was to investigate the long-term effects of anterior cruciate ligament (ACL) resection on the morphological and contractile characteristics of rectus femoris (RF) and semimembranosus (SM) muscles in both injured and contralateral hindlimbs in rats. Wistar male rats (8-week old) were used. Rats were divided into two groups; ACL-resected and (sham-operated) control groups. Furthermore, right and left limbs of rats in the ACL-resected group were assigned as ACL-resected and contralateral groups, respectively, at 1 day, 1, 4, and 48 weeks after ACL resection...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28905323/phase-i-study-of-panobinostat-and-5-azacitidine-in-japanese-patients-with-myelodysplastic-syndrome-or-chronic-myelomonocytic-leukemia
#10
Yukio Kobayashi, Wataru Munakata, Michinori Ogura, Toshiki Uchida, Masafumi Taniwaki, Tsutomu Kobayashi, Fumika Shimada, Masataka Yonemura, Fumiko Matsuoka, Takeshi Tajima, Kimikazu Yakushijin, Hironobu Minami
The current therapy for high-risk myelodysplastic syndrome (MDS) involves repeated cycles of the DNA demethylating agent 5-azacitidine (5-Aza), but combination treatments have been proposed to improve patient outcomes. We performed a phase Ib study to investigate the safety and tolerability of 5-Aza (75 mg/m(2)) combined with the histone deacetylase inhibitor panobinostat (PAN) in adult Japanese patients with MDS or chronic myelomonocytic leukemia (CMML). Eleven patients were enrolled; five received 20 mg PAN + 5-Aza and six received 30 mg PAN + 5-Aza...
September 13, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28902505/activation-mechanism-of-the-streptomyces-tyrosinase-assisted-by-the-caddie-protein
#11
Yasuyuki Matoba, Shogo Kihara, Yoshimi Muraki, Naohiko Bando, Hironari Yoshitsu, Teruo Kuroda, Miyuki Sakaguchi, Kure'e Kayama, Hulin Tai, Shun Hirota, Takashi Ogura, Masanori Sugiyama
Tyrosinase (EC 1.14.18.1), which possesses two copper ions at the active center, catalyzes a rate-limiting reaction of melanogenesis: that is, the conversion of a phenol to the corresponding ortho-quinone. The enzyme from the genus Streptomyces is generated as a complex with a "caddie" protein that assists the transport of two copper ions into the active center. In this complex, the Tyr(98) residue in the caddie protein was found to be accommodated in the pocket of the active center of tyrosinase, probably in a manner similar to that of L-tyrosine as a genuine substrate of tyrosinase...
September 13, 2017: Biochemistry
https://www.readbyqxmd.com/read/28902104/a-replication-study-for-the-association-of-rs11190870-with-curve-severity-in-adolescent-idiopathic-scoliosis-in-japanese
#12
Yohei Takahashi, Ikuyo Kou, Yoji Ogura, Atsushi Miyake, Kazuki Takeda, Masahiro Nakajima, Shohei Minami, Noriaki Kawakami, Koki Uno, Manabu Ito, Ikuho Yonezawa, Takashi Kaito, Haruhisa Yanagida, Kei Watanabe, Hiroshi Taneichi, Katsumi Harimaya, Yuki Taniguchi, Toshiaki Kotani, Taichi Tsuji, Teppei Suzuki, Hideki Sudo, Nobuyuki Fujita, Mitsuru Yagi, Kazuhiro Chiba, Katsuki Kono, Tsuyoshi Sakuma, Tsutomu Akazawa, Kotaro Nishida, Kenichiro Kakutani, Hideki Shigematsu, Takahiro Iida, Satoshi Demura, Naobumi Hosogane, Eijiro Okada, Masaya Nakamura, Morio Matsumoto, Kota Watanabe, Shiro Ikegawa
STUDY DESIGN: Case-only study. OBJECTIVE: The aim of this study was to confirm the association of rs11190870 with AIS severity in Japanese patients with AIS. SUMMARY OF BACKGROUND DATA: Although the association of rs11190870 with AIS susceptibility is replicated in multiple ethnics, the association of rs11190870 with curve severity is controversial. Since the previous studies are of small, we performed a replication study using far larger number of patients than previous studies...
September 8, 2017: Spine
https://www.readbyqxmd.com/read/28899550/geometric-effects-on-oo-bond-scission-of-copper-ii-alkylperoxide-complexes
#13
Tsukasa Abe, Yuma Morimoto, Kaoru Mieda, Hideki Sugimoto, Nobutaka Fujieda, Takashi Ogura, Shinobu Itoh
Copper(II) complexes supported by N3-tridentate ligands, consisting of a rigid cyclic diamine (8-membered cyclic-diamine; L8 or 7-membered cyclic-diamine; L7) and a 2-(2-pyridyl)ethyl (-CH2CH2Py) group, were synthesized and structurally characterized. Reaction of the copper(II) complexes and cumene hydroperoxide (CmOOH) in the presence of triethylamine in CH3CN gave the corresponding cumylperoxide complexes L8Cu(II)OOCm and L7Cu(II)OOCm. The UV-vis and EPR spectra suggested that L8Cu(II)OOCm takes a tetrahedrally distorted structure, whereas L7Cu(II)OOCm has a planar geometry in solution...
September 1, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28893957/anti-inflammatory-role-of-langerhans-cells-and-apoptotic-keratinocytes-in-ultraviolet-b-induced-cutaneous-inflammation
#14
Mayumi Hatakeyama, Atsushi Fukunaga, Ken Washio, Kumiko Taguchi, Yoshiko Oda, Kanako Ogura, Chikako Nishigori
UV radiation, particularly UVB, is the major risk factor for the induction of skin cancer, and it induces skin inflammation and immunosuppression. Although reports documented that Langerhans cells (LCs) play various roles in photobiology, little is known about whether they contribute to UVB-induced cutaneous inflammation. Recently, the anti-inflammatory effect of apoptotic cells was noted. This study focuses on the roles of LCs and apoptotic cells in UVB-induced cutaneous inflammation. We show that LCs are essential for resolution of UVB-induced cutaneous inflammation...
September 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28893725/improvements-in-patient-acceptance-by-hospitals-following-the-introduction-of-a-smartphone-app-for-the-emergency-medical-service-system-a-population-based-before-and-after-observational-study-in-osaka-city-japan
#15
Yusuke Katayama, Tetsuhisa Kitamura, Kosuke Kiyohara, Taku Iwami, Takashi Kawamura, Junichi Izawa, Koichiro Gibo, Sho Komukai, Sumito Hayashida, Takeyuki Kiguchi, Mitsuo Ohnishi, Hiroshi Ogura, Takeshi Shimazu
BACKGROUND: Recently, the number of ambulance dispatches has been increasing in Japan, and it is therefore difficult for hospitals to accept emergency patients smoothly and appropriately because of the limited hospital capacity. To facilitate the process of requesting patient transport and hospital acceptance, an emergency information system using information technology (IT) has been built and introduced in various communities. However, its effectiveness has not been thoroughly revealed...
September 11, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28893694/altered-expression-of-microrna-15a-and-kruppel-like-factor-4-in-cerebrospinal-fluid-and-plasma-after-aneurysmal-subarachnoid-hemorrhage
#16
Yuichiro Kikkawa, Takeshi Ogura, Hiroyuki Nakajima, Toshiki Ikeda, Ririko Takeda, Hiroaki Neki, Shinya Kohyama, Fumitaka Yamane, Ryota Kurogi, Toshiyuki Amano, Akira Nakamizo, Masahiro Mizoguchi, Hiroki Kurita
BACKGROUND: Cerebral vasospasm (CVS) is a major determinant of prognosis in patients with subarachnoid hemorrhage (SAH). Alteration in the vascular phenotype contributes to development of CVS. However, little is known about the role of microRNAs (miRNAs) in the phenotypic alteration after SAH. We investigated the expression profile of miRNAs and the chronological changes in the expression of microRNA-15a (miR-15a) and Kruppel-like factor 4 (KLF4), a potent regulator of vascular phenotype modulation that modulates the expression of miR-15a, in the plasma and cerebrospinal fluid (CSF) of SAH patients...
September 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28888819/synthesis-and-evaluation-of-biological-activities-of-vibsanin-a-analogs
#17
Wataru Matsuki, So Miyazaki, Keisuke Yoshida, Akihiro Ogura, Yukiko Sasazawa, Ken-Ichi Takao, Siro Simizu
Vibsanin A is an 11-membered vibsane diterpenoid and is reported to induce myeloid cell differentiation via activation of protein kinase C (PKC) without tumor-promoting activity. Therefore, vibsanin A is thought to be an attractive compound for acute myeloid leukemia (AML) therapy. In this study, we synthesized vibsanin A analogs and compared the activity of these compounds for PKC activation and myeloid cell differentiation. We found that the hydroxymethyl group in vibsanin A is an important substituent to induce differentiation of AML cells...
August 31, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28887504/macrophages-unlock-progression-of-breast-cancer-cells-experiencing-matrigel-segregation-in-transplantation-models
#18
Misa Ogura, Victoria L Bridgeman, Ilaria Malanchi
Basement membrane matrix proteins, such as matrigel, are able to improve the efficiency of tumour transplantation. This assay represents the gold standard to measure tumour initiation potential in vivo of a limited number of cancer cells. However, in culture conditions, matrigel directly signals to cancer cells altering their phenotype. We here investigate how matrigel influences the tumour reconstitution dynamics of breast cancer cells in vivo. This is particularly relevant in the setting of limiting dilution assay where cells are transplanted in a relatively high amount of Matrigel...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28883712/integrated-results-from-the-copernicus-and-galileo-studies
#19
Amelie Pielen, W Lloyd Clark, David S Boyer, Yuichiro Ogura, Frank G Holz, Jean-Francois Korobelnik, Brigitte Stemper, Friedrich Asmus, Kay D Rittenhouse, Christiane Ahlers, Robert Vitti, Namrata Saroj, Oliver Zeitz, Julia A Haller
OBJECTIVES: To report on the efficacy and safety of intravitreal aflibercept in patients with macular edema secondary to central retinal vein occlusion (CRVO) in an integrated analysis of COPERNICUS and GALILEO. PATIENTS AND METHODS: Patients were randomized to receive intravitreal aflibercept 2 mg every 4 weeks or sham injections until week 24. From week 24 to week 52, all intravitreal aflibercept-treated patients in both studies and sham-treated patients in COPERNICUS were eligible to receive intravitreal aflibercept based on prespecified criteria...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28883482/low-body-surface-area-predicts-hepatotoxicity-of-nintedanib-in-patients-with-idiopathic-pulmonary-fibrosis
#20
Satoshi Ikeda, Akimasa Sekine, Tomohisa Baba, Yumie Yamanaka, Shinko Sadoyama, Hideaki Yamakawa, Tsuneyuki Oda, Ryo Okuda, Hideya Kitamura, Koji Okudela, Tae Iwasawa, Kenichi Ohashi, Tamiko Takemura, Takashi Ogura
After the commercialization of nintedanib in Japan, a high incidence of hepatotoxicity resulting in treatment interruption was noted in idiopathic pulmonary fibrosis (IPF) patients treated with nintedanib in our hospital. This study aimed to clarify the risk factors for hepatotoxicity of nintedanib. Sixty-eight consecutive cases of IPF newly treated with nintedanib at a dose of 150 mg twice daily from September 2015 to September 2016 were enrolled: 46 patients (67.6%) exhibited aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) elevation and 16 patients (23...
September 7, 2017: Scientific Reports
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