6,755 results match your criteria: "Hokkaido University Graduate School of Medicine.[Affiliation]"

Background And Hypothesis: Male patients with X-linked Alport syndrome (XLAS) generally develop end-stage kidney disease in early or middle adulthood and show distinct genotype-phenotype correlations. Female patients, however, show various phenotypes ranging from asymptomatic to severe with no genotype-phenotype correlations. However, the factors affecting the severity of XLAS in female patients are unclear.

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  • The study by the Epilepsy Subcommittee of the Japanese Society of General Hospital Psychiatry aimed to identify challenges that psychiatrists face when treating epilepsy and transitioning patients from pediatric to adult care.
  • A survey was conducted with 1,980 psychiatrists, out of which 545 responded, revealing that a significant majority (89.2%) felt hesitant about treating epilepsy and managing the transition of patients.
  • Factors like years of experience, board certification in epilepsy, and workplace support from specialists were associated with reduced hesitancy and increased confidence in providing quality care for epilepsy patients.*
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Patients with congenital absence of a lumbar pedicle and nerve root anomaly presenting with ipsilateral foraminal stenosis are extremely rare. An 80-year-old man had low back and right thigh pain. Radiographs and computed tomography (CT) showed L3 vertebral body fracture and the absence of the right L3 lumbar pedicle.

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Association of Finger Tapping Movements with Frailty Status in older Japanese Adults: A Cross-Sectional Study.

J Frailty Aging

July 2024

Prof Akiko Tamakoshi MD, PhD, Department of Public Health, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo 060-0812, Japan, Tel: +81 11 7065068; Fax: +81 11 7065068, E-mail:

Background: Finger tapping impairment and frailty share overlapping pathophysiology and symptoms in older adults, however, the relationship between each other has not been previously studied.

Objectives: To investigate how finger tapping movements correlate with frail status in older Japanese adults.

Design, Setting, And Participants: Data were from a cross-sectional study called the Cognition and Activity in Rural Environment of Hokkaido Senior Survey 2018.

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  • This study focuses on comparing how family members perceive the quality of death in patients who died from cardiovascular disease (CVD) versus cancer.
  • A survey was sent out to family members of deceased CVD patients, with results showing that the quality of death score for CVD patients was lower compared to cancer patients receiving palliative care, but higher than those in general wards.
  • Ultimately, the findings suggest that while the quality of death for CVD patients is generally perceived as lower than for those in palliative care, it does not significantly differ from cancer patients in non-palliative care settings.
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Aim: This study was undertaken to evaluate the outcome of curative liver resection, (LR) of Barcelona Clinic Liver Cancer stage C hepatocellular carcinoma (BCLC-C HCC) after tyrosine kinase inhibitors (TKIs) became approved as a treatment option for recurrent lesions.

Methods: Sixty-seven patients with BCLC-C HCC who underwent curative LR were enrolled in this study. The patients were classified into two groups according to whether LR was performed before (n = 24) or after (n = 43) TKI approval ("beforeTKI" and "afterTKI" group, respectively).

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Efficacy and safety of oral semaglutide in older patients with type 2 diabetes: a retrospective observational study (the OTARU-SEMA study).

BMC Endocr Disord

July 2024

Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.

Background: Oral semaglutide in older subjects with type 2 diabetes was as effective as in younger subjects, according to phase 3 clinical trials. However, its efficacy can be limited in very aged population, due to the presence of impaired cognitive function and the complex instructions for its use. Here, we investigated its efficacy and safety by further age bracket in older subjects in real-world.

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  • - Recent developments in moyamoya disease (MMD) genetics highlight the RNF213 gene’s role not only in MMD but also in other conditions like atherosclerotic intracranial arterial stenosis and ischemic strokes.
  • - New Japanese guidelines for diagnosing MMD remove the requirement for bilateral carotid artery involvement, acknowledging evidence that unilateral cases often progress to bilateral involvement.
  • - Treatment advances suggest antiplatelet therapy is reasonable, while endovascular stenting is ineffective. A trial showed that direct bypass surgery significantly reduced complications compared to conservative management for certain MMD patients.
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  • This study aimed to evaluate how well lenticulostriate arteries (LSAs) can be seen using advanced imaging techniques, specifically comparing deep learning-based reconstruction with traditional methods.
  • It involved five healthy volunteers and analyzed high-resolution images with varying levels of data reduction to assess the visibility and quality of LSAs as recognized by radiologists.
  • Results showed that deep learning reconstruction improved the visibility and quality of LSAs compared to conventional methods, particularly at higher data reduction levels, making it a potentially better option for medical imaging.
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We have previously developed a 3D video tracking system which enables us to analyze long-term quantitative analysis of gene expression in freely moving mice. In the present study, we improved 3D video tracking and developed a system that analyzes more detailed behavioral data. We succeeded in simultaneously analyzing sleep-wake, feeding, and drinking behavior rhythms in the same individual using our tracking system.

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A potassium channel blocker 4-AP has been shown to exert pronounced convulsive action to generate burst firings when applied to hippocampal slices. However, it remains unclear how the blockade of potassium channels leads to the generation of burst firings. One possibility is ectopic spiking from the sites different from those for physiological spike initiation at the axon initial segment, as suggested for several experimental models of epileptogenesis .

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Adipsic hypernatremia is typically caused by congenital dysplasia of the hypothalamus and pituitary or brain tumors. However, cases of adipsic hypernatremia without underlying organic abnormalities are rare, and some cases have been reported to be complicated by hypothalamic-pituitary dysfunction. The patient in this case was a 9-yr-old boy who was referred to our hospital because of hypernatremia.

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Noonan syndrome is a congenital disorder characterized by distinctive facial appearance, congenital heart defects, short stature, and skeletal dysplasia. Although boys with Noonan syndrome frequently exhibit cryptorchidism, a mild form of 46,XY disorders of sex development (DSD), they barely manifest more severe genital abnormalities. Here, we report a boy with ambiguous genitalia, short stature, and non-specific dysmorphic features.

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  • Developmental synapse elimination is essential for forming mature neural circuits, particularly in the cerebellum of neonatal mice where Purkinje cells initially connect with multiple climbing fibers.
  • By postnatal day 20, all climbing fiber synapses except one are eliminated, with heterosynaptic interactions between climbing fibers and parallel fibers playing a key role in this process.
  • The study finds that the deletion of AMPA receptors in granule cells disrupts the elimination of climbing fiber synapses, highlighting the importance of parallel fiber activity, which may enhance synapse elimination by activating mGlu1 receptors in Purkinje cells and NMDA receptors in molecular layer interneurons.
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Objective: To evaluate the preoperative and perioperative predictors of persistent leg numbness following lumbar fusion in patients aged ≥ 75 years.

Methods: This single-center retrospective study examined 304 patients aged ≥ 75 years who underwent lumbar fusion for lumbar degenerative disease (102 men, 202 women; mean age, 79.2 [75-90] years).

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The development of genetically-encoded fluorescent probes for the detection of intracellular calcium ions and various neurotransmitters has progressed significantly in recent years, and there is a growing need for techniques that rapidly and efficiently image these signals in the living brain for pharmacological studies of the central nervous system. In this article, we discuss one-photon fluorescence microscopy techniques used for brain activity imaging, particularly wide-field imaging and head-mounted miniaturized microscopy, and introduce their basic principles, recent advances, and applications in pharmacological research. Wide-field calcium imaging is suitable for mesoscopic observation of cortical activity during behavioral tasks in head-fixed awake mice, while head-mounted miniaturized microscopes can be attached to the animal's head to image brain activity associated with naturalistic behaviors such as social behavior and sleep.

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Background: Sodium-glucose cotransporter 2 (SGLT2) inhibitors reduce the risk of hospitalization for heart failure and cardiovascular death with type 2 diabetes; however, their effect on arrhythmias is unclear. The purpose of this study was to investigate the effects of empagliflozin on ventricular arrhythmias in patients with type 2 diabetes.

Methods: A total of 150 patients with type 2 diabetes who were treated with an implantable cardioverter-defibrillator or cardiac resynchronization therapy defibrillator (ICD/CRT-D) were randomized to once-daily empagliflozin or placebo for 24 weeks.

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  • A nationwide survey targeting newly certified surgical trainees in Japan aimed to identify challenges they face during their training.
  • Among the respondents, a significant portion expressed interest in surgical techniques but felt hesitant about the profession due to concerns over their quality of life and experiences of harassment.
  • Despite high overall satisfaction with the training, issues like long working hours and reported harassment indicate a need for improvements to enhance the appeal of surgical careers for future trainees.
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  • There is growing concern about the health risks of heated tobacco products (HTPs) due to their toxicity, similar to traditional tobacco products.
  • The study used HSC-3 oral cancer cells to analyze the effects of cigarette smoke extract (CSE) from HTPs and traditional cigarettes, focusing on reactive oxygen species (ROS) and calcium signaling.
  • Results showed that both types of CSE caused cell damage, increased ROS and calcium levels, and led to cell death, with the processes being influenced by the protein CaMKK2.
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  • Acute lymphoblastic leukemia (γδ T-ALL) is a rare and complex condition in children, prompting a study of 200 pediatric cases to identify its clinical and genetic characteristics.
  • The research revealed that very young children (under 3 years) with γδ T-ALL face a significantly high risk and display specific genetic changes, particularly involving STAG2 inactivation and LMO2 activation.
  • Importantly, their findings suggest that targeting DNA repair pathways linked to STAG2 inactivation with specific drugs could offer new treatment options and help classify patients based on their risk levels.
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Background: Gastrointestinal malignancies encompass a diverse group of cancers that pose significant challenges to global health. The major histocompatibility complex (MHC) plays a pivotal role in immune surveillance, orchestrating the recognition and elimination of tumor cells by the immune system. However, the intricate regulation of MHC gene expression is susceptible to dynamic epigenetic modification, which can influence functionality and pathological outcomes.

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