Time filter

Source Type

Kawasaki, Japan

St. Marianna University School of Medicine is a private university in Miyamae-ku, Kawasaki, Kanagawa Prefecture, Japan. Established in 1971, it is a medical school affiliated with the Roman Catholic Church. In additional to medical studies, the school offers a degree in comparative religious studies. The school is also the first in Asia to be approved as a medical center for the FIFA world soccer association, and is the medical provider for the Japan national football team. Wikipedia.

Kawakami T.,St. Marianna University School of Medicine
Journal of Dermatology | Year: 2010

Palpable purpura tends to indicate involvement of small vessel vasculitis in the upper dermis. Livedo racemosa, nodular lesion and skin ulceration are indicative of involvement of small to medium-sized vessel vasculitis in the lower dermis to subcutaneous fat. We set out to establish a new algorithm (KAWAKAMI algorithm) for primary cutaneous vasculitis based on the Chapel Hill Consensus Conference classification and our research results, and apply to the diagnosis. The first step is to measure serum antineutrophil cytoplasmic antibodies (ANCA) levels. If myeloperoxidase-ANCA is positive, Churg-Strauss syndrome or microscopic polyangiitis can be suspected, and if the patient is positive for proteinase 3-ANCA, Wegener's granulomatosis is most likely. Next, if cryoglobulin is positive, cryoglobulinemic vasculitis should be suspected. Third, if direct immunofluorescence of the skin biopsy specimen reveals immunoglobulin A deposition within the affected vessels, Henoch-Schönlein purpura is indicated. Finally, the presence of anti-phosphatidylserine- prothrombin complex antibodies and/or lupus anticoagulant and histopathological necrotizing vasculitis in the upper to middle dermis (leukocytoclastic vasculitis) indicates cutaneous leukocytoclastic angiitis, whereas if necrotizing vasculitis exists in the lower dermis and/or is associated with the subcutaneous fat, cutaneous polyarteritis nodosa is indicated. The KAWAKAMI algorithm may allow us to refine our earlier diagnostic strategies and allow for efficacious treatment of primary cutaneous vasculitis. In cutaneous polyarteritis nodosa, warfarin or clopidogrel therapies should be administrated, and in cases that have associated active inflammatory lesions, corticosteroids or mizoribine (mycophenolate mofetil) therapy should be added. We further propose prophylactic treatment of renal complications in patients with Henoch-Schönlein purpura. © 2010 Japanese Dermatological Association.

Ui A.,Tohoku University | Ui A.,St. Marianna University School of Medicine | Nagaura Y.,Tohoku University | Yasui A.,Tohoku University
Molecular Cell | Year: 2015

Transcription is repressed if a DNA double-strand break (DSB) is introduced in close proximity to a transcriptional activation site at least in part by H2A-ubiquitination. While ATM signaling is involved, how it controls H2A-ubiquitination remains unclear. Here, we identify that, in response to DSBs, a transcriptional elongation factor, ENL (MLLT1), is phosphorylated by ATM at conserved SQ sites. This phosphorylation increases the interaction between ENL and the E3-ubiquitin-ligase complex of Polycomb Repressive Complex 1 (PRC1) via BMI1. This interaction promotes enrichment of PRC1 at transcription elongation sites near DSBs to ubiquitinate H2A leading to transcriptional repression. ENL SQ sites and BMI1 are necessary for KU70 accumulation at DSBs near active transcription sites and cellular resistance to DSBs. Our data suggest that ATM-dependent phosphorylation of ENL functions as switch from elongation to Polycomb-mediated repression to preserve genome integrity. © 2015 Elsevier Inc.

Otsubo T.,St. Marianna University School of Medicine
Journal of Hepato-Biliary-Pancreatic Sciences | Year: 2012

Control of blood loss is a serious problem during liver resection. Bleeding from the inflow system can be controlled by the Pringle maneuver. The time limit for clamping is up to 10-15 min. A shortcoming of the Pringle maneuver is that it causes blood congestion in the portal vein. To avoid this problem other techniques have been developed including selective vascular occlusion and selective clamping of segmental branches. Bleeding from the outflow system is closely related to central venous pressure (CVP). Lowering the CVP reduces blood loss; in particular, keeping CVP \5 cmH2O by anesthesiological management is a simple and effective way to reduce blood loss. CVP remains high in some cases despite anesthesiological efforts, but in these circumstances other techniques are available including inferior vena cava clamping below the liver and intraoperative blood salvage. © 2011 Japanese Society of Hepato-Biliary-Pancreatic Surgery and Springer.

Boku N.,St. Marianna University School of Medicine
Gastric Cancer | Year: 2014

Human epidermal growth factor receptor 2 (HER2) is involved in the pathogenesis and poor outcomes of several types of cancer, including advanced gastric and gastroesophageal junction cancer. Molecular-targeted drugs, such as trastuzumab, which prolong overall survival and progression-free survival in HER2-positive breast cancer, may also be beneficial in patients with HER2-positive gastric cancer. Several studies have examined this possibility, such as the Trastuzumab for Gastric Cancer trial. In this context, the first part of this review provides an update on our knowledge of HER2 in breast and gastric cancer, including the detection and prognostic relevance of HER2 in gastric cancer. The second part of the review discusses the results of pivotal clinical trials that examined the potential for using trastuzumab to treat this disease. This section also summarizes the trials that have been conducted or that are underway to determine the optimal uses of trastuzumab in gastric cancer, including its use as monotherapy and continuation beyond disease progression. The final section discusses the future prospects of other anti-HER2 drugs, including lapatinib, trastuzumab emtansine, and pertuzumab, for the treatment of HER2-positive gastric cancer. The introduction of trastuzumab led to the establishment of a new disease entity, "HER2-positive gastric cancer," similar to HER2-positive breast cancer. It is expected that more anti-HER2 drugs will be developed and introduced into clinical practice to treat HER2-positive cancers, including gastric cancer. © 2013 The Author(s).

Yamada H.,St. Marianna University School of Medicine
Seminars in Respiratory and Critical Care Medicine | Year: 2011

The possible link between pulmonary fibrosis, anti-neutrophil cytoplasmic autoantibody (ANCA) positivity, and vasculitis is poorly understood. During the past 6 years, five retrospective case-control studies have been published. These studies suggest that pulmonary fibrosis (PF) is an underestimated manifestation of ANCA-associated vasculitis. Common clinical characteristics include older age (around 70 years), constant positivity of myeloperoxidase (MPO)-ANCA and the poor prognosis of the pulmonary disease. The diagnosis of PF often predates the development of vasculitis. There are no significant differences of pulmonary function parameters, bronchoalveolar lavage analysis, or high-resolution computed tomographic (HRCT) findings between ANCA-associated PF and idiopathic pulmonary fibrosis (IPF). The high mortality rate of ANCA-associated PF indicates that a search for ANCAs should be performed at diagnosis in every patient with PF because the presence of ANCAs increases the risk of development of vasculitis and should promote specific monitoring of patients with positive MPO-ANCA. © 2011 by Thieme Medical Publishers, Inc.

Discover hidden collaborations