Publications by authors named "Nara T"

Objectives: Intrathecal baclofen (ITB) therapy is well documented as an effective treatment option for severe spasticity. Before ITB implantation, trials are conducted to evaluate efficacy, safety, and candidate suitability. While many centers conduct ITB trials, appropriate physical assessment has not been fully established.

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mRNA vaccines emerged as a new therapeutic modality during the COVID-19 pandemic. Individuals with allergies often experience anxiety about potential adverse reactions to these vaccines. This study aims to elucidate the relationship between adverse reactions and various allergies, asthma, or atopic disorders.

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  • * A study reviewed four cases of bladder cancer in young SMID patients, noting a significant delay (median of 12.5 months) between the first symptoms and diagnosis, indicating a need for better monitoring.
  • * Treatment involved radical cystectomy for three patients and transurethral ablation for one, with a median follow-up of 134 months; most patients survived, highlighting the need for timely evaluation of urinary symptoms in this vulnerable population.
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Objective: Proximal ExTension to Induce COmplete ATtachment (PETTICOAT), which uses downstream bare metal stents for structural support, demonstrates potential, yet its adoption is limited by variable outcomes. This study elucidates the potential of PETTICOAT in aortic dissection, emphasizing the determinants that guide patient selection.

Methods: A retrospective analysis of 60 patients who underwent full PETTICOAT for aortic dissections was conducted.

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Purpose: As the number of older adults in society increases, their social roles and networks, as well as their physical function, decrease. This study aimed to clarify the association between social networks and physical function among people aged ≥ 60 years in rural Thailand.

Patients And Methods: This cross-sectional study was conducted in the Photharam District, Ratchaburi Province, Thailand.

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An aortopulmonary window is a rare disorder that occurs in 0.1–0.2% of all congenital disorders.

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  • - Arterio-ureteral fistulas (AUFs) are rare but serious complications that require quick medical attention, often arising from surgeries like radical cystectomy.
  • - A specific case involved a patient who developed an AUF after robotic surgery for bladder cancer, leading to severe internal bleeding due to urine leaks and infection.
  • - The situation was successfully treated using a vascular procedure that involved placing an arterial stent graft to manage the fistula.
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Purpose: To establish if osteosarcopenia is related to postoperative complications, prognosis, and recurrence of colorectal cancer (CRC) after curative surgery.

Methods: The clinical data of 594 patients who underwent curative resection for CRC between January, 2013 and December, 2018 were analyzed retrospectively to examine the relationship between clinicopathological data and osteosarcopenia. The following definitions were used: sarcopenia, low skeletal muscle mass index; osteopenia, low bone mineral density on computed tomography at the level of the 11th thoracic vertebra; and osteosarcopenia, sarcopenia with osteopenia.

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  • Decreased cough strength in myasthenia gravis (MG) increases the risk of aspiration and crisis, prompting this study on cough peak flow (CPF) measurements in MG patients.
  • The study included 26 MG patients who independently measured their CPF, and the results were compared with pulmonary function tests and MG assessments before and after treatment.
  • The findings revealed a high reliability for CPF measurements, with a cut-off value of 205 L/min for aspiration risk, showing good sensitivity and specificity as a useful biomarker for assessing MG symptoms.
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Background: Nivolumab plus ipilimumab (NIVO + IPI) is the first-line treatment for patients with metastatic renal cell carcinoma (mRCC). While approximately 40% of patients treated with NIVO + IPI achieve a durable response, 20% develop primary resistance with severe consequences. Therefore, there is a clinical need for criteria to select patients suitable for NIVO + IPI therapy to optimize its therapeutic efficacy.

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Robot-assisted partial nephrectomy (RAPN) has been shown to be a safe and effective method for treatment of small renal tumors, including clinical T1b renal cell carcinoma (RCC); however, the impact of RAPN for cT1b renal tumors on renal function is not well understood. In this retrospective study, 50 patients who underwent RAPN for cT1b renal tumors were evaluated for pre- and post-operative renal function and perioperative clinical factors. Renal function was assessed using the estimated glomerular filtration rate (eGFR) at baseline and on postoperative days (POD) 1, 7, 30, and 180.

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  • - Axitinib is an oral medication used to treat renal cell carcinoma (RCC) but can cause severe side effects, leading to dose adjustments or discontinuation in patients, which emphasizes the need for better biomarkers to evaluate its effectiveness and adverse events (AEs).
  • - The study investigated 80 metastatic RCC patients, analyzing their genetic variants, specifically single nucleotide polymorphisms (SNPs) in three genes (ACE, NOS3, AT1R) that are related to how axitinib works on blood vessels.
  • - Results indicated that patients with the ACE deletion allele experienced more hand-foot syndrome and worsened kidney function, while those with the NOS3 G allele had higher rates of proteinuria and multiple AEs
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COVID-19 has a range of complications, from no symptoms to severe pneumonia. It can also affect multiple organs including the nervous system. COVID-19 affects the brain, leading to neurological symptoms such as delirium.

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Thermal property (TP) maps of human tissues are useful for tumor treatment and diagnosis. In particular, the blood perfusion rate is significantly different for tumors and healthy tissues. Noninvasive techniques that reconstruct TPs from the temperature measured via magnetic resonance imaging (MRI) by solving an inverse bioheat transfer problem have been developed.

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Background: Attention is one of the factors involved in selecting input information for the brain. We applied a method for estimating domains with clear boundaries using magnetoencephalography (the domain estimation method) for auditory-evoked responses (N100m) to evaluate the effects of attention in milliseconds. However, because the surface around the auditory cortex is folded in a complicated manner, it is unknown whether the activity in the auditory cortex can be estimated.

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A 66-year-old male was diagnosed with cT4N0M1b small-cell neuroendocrine carcinoma of the prostate. Four months after the administration of combined androgen blockade, multiple novel metastatic regions in the lung and liver and progression of bone metastasis were observed. The patient was referred to our hospital because of biochemical and radiographic progression after four cycles of docetaxel as a first-line therapy for castration-resistant prostate cancer.

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  • A 75-year-old man with prostate cancer and a history of IgG4-related disease rapidly progressed to diffuse large B-cell lymphoma after receiving androgen deprivation therapy.
  • The diagnosis was confirmed through symptoms like dyspnea and back pain, and immunohistochemistry showed a positive estrogen receptor β, suggesting estrogen suppression contributed to the lymphoma's progression.
  • Following the cessation of hormone therapy and initiation of R-CHOP treatment, the patient's lymphoma significantly improved, highlighting the important role of estrogen in such cases and the need for careful treatment selection in similar patients.
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Introduction: Coronavirus disease 2019 (COVID-19) is associated with a marked increase in the inflammatory cytokines, IL-6 and IL-18. Blood purification therapy aimed at controlling cytokines is one treatment option; however, evidence of its effectiveness is needed. Plasma exchange with dialysis (PED) is a blood purification method involving selective plasma exchange with dialysate flowing through the outer hollow fiber of the plasma separator.

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Background: Although nivolumab plus ipilimumab is the standard treatment for metastatic renal cell carcinoma (RCC), its efficacy and safety in older patients remain unclear. Therefore, this study aimed to assess the clinical outcomes of nivolumab plus ipilimumab for metastatic RCC in patients aged ≥ 75 years.

Methods: We enrolled 120 patients with metastatic RCC treated with nivolumab plus ipilimumab from August 2015 to January 2023.

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The cell membrane of Halobacterium salinarum contains a retinal-binding photoreceptor, sensory rhodopsin II (HsSRII), coupled with its cognate transducer (HsHtrII), allowing repellent phototaxis behavior for shorter wavelength light. Previous studies on SRII from Natronomonas pharaonis (NpSRII) pointed out the importance of the hydrogen bonding interaction between Thr204 and Tyr174 in signal transfer from SRII to HtrII. Here, we investigated the effect on phototactic function by replacing residues in HsSRII corresponding to Thr204 and Tyr174 .

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  • Nivolumab plus ipilimumab (NIVO+IPI) is the primary treatment for metastatic renal cell carcinoma (mRCC), with about 40% of patients achieving a lasting response, but 20% show primary resistance to the treatment.
  • This study analyzed data from 120 mRCC patients treated with NIVO+IPI from August 2015 to January 2023, focusing on factors linked to primary resistant disease (PRD) and patient outcomes.
  • The findings revealed that PRD was associated with significantly worse overall survival, and lymph node metastasis (LNM) was identified as an independent risk factor for developing PRD, suggesting some patients may not benefit from NIVO+IPI therapy.
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Background: Diplonemid flagellates are among the most abundant and species-rich of known marine microeukaryotes, colonizing all habitats, depths, and geographic regions of the world ocean. However, little is known about their genomes, biology, and ecological role.

Results: We present the first nuclear genome sequence from a diplonemid, the type species Diplonema papillatum.

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  • The study focused on the safety and effectiveness of a new low-profile device for treating lesions in the aortic arch, with 42 patients participating and an average age of 67.2 years.
  • Results showed no major complications during the procedure, with only one minor stroke observed post-operation, and most patients showed good recovery after an average follow-up of 18 months.
  • The findings suggest that this physician-modified approach is a promising and efficient method for treating aortic arch issues, but further long-term studies are needed to assess its durability and outcomes over time.
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