Publications by authors named "Takeshi Sato"

Article Synopsis
  • The study investigates the prevalence and clinical characteristics of monogenic disorders in Japanese patients with 46,XY differences of sex development (DSD).
  • Out of 185 patients, 26% were found to have pathogenic variants in specific genes associated with DSD, with notable differences in proportions based on genital formation.
  • The findings suggest that monogenic disorders are more common in patients exhibiting female-typical genitalia and those with Müllerian derivatives.
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  • * Twenty patients who had failed previous eradication therapies participated in the study, and the treatment lasted for 14 days, which was adjusted by removing any resistant drugs identified in prior tests.
  • * The resulting eradication rates were 63.2% in overall analysis and 70.6% when strictly adhering to the protocol, suggesting this modified therapy could be an effective option after other treatments have failed, with no serious side effects reported.
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A 73-year-old man who presented with nonspecific general symptoms and cognitive impairment was initially diagnosed with mild cognitive impairment due to dementia with Lewy bodies (DLB) based on a reduced blood flow in the parietal and occipital lobes on single-photon emission computed tomography (SPECT) imaging. However, the patient later presented with hyponatremia and hypoglycemia, leading to impaired consciousness, and was diagnosed with isolated adrenocorticotropic hormone deficiency (IAD). Hydrocortisone treatment improved the blood test scores and general symptoms, including cognitive impairment.

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  • - The study focuses on genetic variants of the STAR protein that lead to lipoid congenital adrenal hyperplasia, a condition marked by disrupted steroid production in adrenal glands and gonads.
  • - Researchers created genetically modified Y1 mouse tumor cells, which showed a slight ability to produce pregnenolone, and displayed changes similar to those found in patients with the condition when stimulated for two weeks.
  • - The modified cells can assess the functionality of both mouse and human STAR proteins, providing a new way to study genetic variants linked to steroidogenesis issues.
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The surface sensitivity of high-resolution secondary electron (SE) imaging is examined using twisted bilayers of MoS2 stacked at an angle of 30-degree. High-resolution SE images of the twisted bilayer MoS2 show a honeycomb structure composed of Mo and S atoms, elucidating the monolayer structure of MoS2. Simultaneously captured annular dark-field scanning transmission electron microscope images from the same region show the projected structure of the two layers.

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Five time-dependent orbital optimized coupled-cluster methods, of which four can converge to the time-dependent complete active space self-consistent-field method, are presented for fermion-mixtures with arbitrary fermion kinds and numbers. Truncation schemes maintaining the intragroup orbital rotation invariance, as well as equations of motion of coupled-cluster (CC) amplitudes and orbitals, are derived. Present methods are compact CC-parameterization alternatives to the time-dependent multiconfiguration self-consistent-field method for systems consisting of arbitrarily different kinds and numbers of interacting fermions.

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Purpose: During thoracic endovascular aortic repair for complicated Stanford type B aortic dissection, large bare stent placement for the abdominal aorta is sometimes necessary. In smaller abdominal aortic diameter cases, we used the stripped AFX aortic cuff as a scaffolding bare stent rather than the Zenith Dissection Endovascular Stent, which is a commercially available, large bare stent. In this study, we evaluated the feasibility of the stripped AFX aortic cuff and experiments were conducted to compare the stripped AFX and the Zenith Dissection Endovascular Stent.

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In the absence of Helicobacter pylori (HP) infection, a characteristic gastric mucus adhesion may appear during the use of vonoprazan. We named this novel characteristic mucus "web-like mucus" (WLM). This study aimed to determine the incidence and risk factors for WLM.

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Pancreatic ductal adenocarcinoma (PDAC) has a high mortality rate; therefore, the development of effective treatments is a priority. The stimulator of interferon genes (STING) pathway enhances tumor immunity by inducing the production of type 1 interferon (IFN) and proinflammatory cytokines and chemokines and promoting the infiltration of cytotoxic T cells. To assess the function of STING on pancreatic tumorigenesis, Ptf1a LSL-Kras p53 mice (KPC mice) and Ptf1a LSL-Kras p53/STING mice (KPCS mice) were generated.

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There have been no reports comparing neonatal external genitalia of 5α-reductase deficiency (5αRD) with those of other 46,XY differences of sex differentiation (DSD). This study enrolled 31 Japanese cases of 46,XY DSD whose external genitalia was examined during the neonatal period; four were diagnosed as 5αRD and 15 were defined as non-5αRD by genetic analysis of SRD5A2 or urinary steroid metabolites. We compared the following characteristics between 5αRD and non-5αRD groups, adjusting the severity of undermasculinization of the external genitalia: stretched penile length (SPL), glans width, location of the external urethral opening, and proportion of undescended testis.

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  • HP-LCH is linked to arginine vasopressin deficiency (AVD), but patients typically don’t show changes in their osmotic threshold for thirst (OTT).
  • This case study presents a nine-year-old girl whose hypodipsia (reduced thirst) improved during chemotherapy for HP-LCH, allowing her to feel thirst at previously high serum sodium levels.
  • The findings suggest that chemotherapy may help restore the body's thirst mechanisms in patients with AVD linked to HP-LCH, possibly by alleviating pressure on the hypothalamus.
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Cytokine receptor-like factor 2 (CRLF2) and interleukin-7 receptor α (IL-7Rα) form a receptor for thymic stromal lymphopoietin (TSLP). A somatic mutation consisting of the substitution of five amino acids (SLLLL) in the transmembrane domain of CRLF2 with three amino acids, including glutamic acid, isoleucine, and methionine (insEIM), which has been identified in acute lymphocytic leukemia, causes the TSLP-independent dimerization with IL-7Rα and activation. However, the dimerization mechanism remains unclear.

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Aim: Transarterial chemoembolization (TACE) combined with lenvatinib, employing a 4-day lenvatinib administration followed by TACE without an interval (short-term LEN-TACE), was performed for hepatocellular carcinoma (HCC). The aim was to assess tumor hemodynamics following the 4-day lenvatinib and to evaluate the treatment outcomes after the short-term LEN-TACE.

Methods: 25 unresectable HCC patients received this combined therapy.

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We present a computational approach that implements the time-dependent complete-active-space self-consistent-field method, as introduced in [Phys. Rev. A 88, 023402 (2013)].

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Introduction: The testicular regression syndrome (TRS) is a form of differences of sex development (DSD) in which the testes differentiate and function during early embryonic development, but subsequently regress. The clinical phenotype of TRS often overlaps with that of partial gonadal dysgenesis (PGD). Previous studies have demonstrated a causal association between TRS/PGD and heterozygous missense variants of DHX37.

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From the biota beneath the sea ice in Lake Saroma, which is adjacent to Sea of Okhotsk, a diatom culture of Saroma 16 was isolated. Strutted processes and a labiate process in Saroma 16 were characteristic of those in Thalassiosira nordenskioeldii. Similarity search analysis showed that the 826-bp rbcL-3P region sequence of this strain was 100% identical to multiple sequences registered as T.

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