Publications by authors named "Hiroaki Takenaka"

Introduction: The objectives of the present study were to clarify the frequency and content of family issues for patients in Japanese clinics, and the concordance between physicians' and patients' views of family issues.

Methods: In this study, we used a cross-sectional design with a questionnaire survey. Participants were outpatients and their physicians in charge (four family physicians) at four Japanese clinics.

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Article Synopsis
  • - The study explores the fundamental properties of alkali metal fluorides (CsF and KF) when dissolved in two specific solvents: hexafluoroisopropanol (HFIP) and trifluoroethanol (TFE), focusing on aspects like solubility, conductivity, and viscosity.
  • - It describes the solid-state structures of single crystals produced from CsF in both HFIP and TFE for the first time, highlighting the interactions between the fluorinated alcohols and CsF.
  • - The research successfully demonstrates potential applications of these findings in electrochemical fluorination reactions, suggesting practical uses for the studied compounds.
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The radical-type ring-opening reaction of gem-difluorocyclopropanes and subsequent regioselective monoepoxidation of the products were demonstrated. Introduction of a vinyl or allyl group to the epoxide produced the diene derivatives that were subjected to the ring closing metathesis reaction to furnish the gem-difluoromethylene containing cyclopentene, cycloheptene, and cyclooctene derivatives in good to excellent yields.

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We found that aerobic oxidation took place after the visible light-mediated ring-opening reaction of gem-difluorocyclopropane in the presence of an organic dye and amine to furnish 2,2-difluoro-homoallylic alcohols in good yields.

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Background: We aimed to clarify what aspects of family function are measured by the Family APGAR by examining its correlations with the fourth edition of the Family Adaptability and Cohesion Evaluation Scale at Kwansei Gakuin (FACESKG IV). Furthermore, we sought to confirm the usefulness of the Family APGAR in general practice.

Methods: We recruited 250 patients (aged 13-76 years) from the general medicine outpatient clinic in a Japanese hospital between July 1999 and February 2000.

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Background: Previous studies confirmed that the control of diabetes is related to family functioning, but the validity of the tools used to assess family functioning in these studies is questionable. Few studies have focused on family issues. In this study, we used a new assessment tool to evaluate family functioning and family issues of patients with type 2 diabetes.

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We report a case of a 65-year-old male with stage IV gastric cancer accompanied by liver metastases, which showed a significant response after administration of TS-1. One hundred and twenty mg/body/day of TS-1 was orally administered without hospitalization. After 3 months, upper GI endoscopy showed improvement of primary gastric lesion, and cancer cells could not be detected under biopsy.

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Purpose: We investigated the efficiency of distal anastomosis with patch plasty (DAPP), both experimentally and clinically.

Methods: In our experimental study, dogs were divided into two groups: a control group in which anastomosis was performed without DAPP ( n = 7), and a DAPP group in which DAPP was performed at the distal anastomosis ( n = 7). In our clinical study, 169 femoropopliteal bypasses were divided into three groups and analyzed.

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Medial degeneration of extracellular matrix (ECM) proteins in the wall of abdominal aortas results in smooth muscle cell destruction, a loss of architectural integrity, and abdominal aortic aneurysm (AAA) formation. It has been theorized that an imbalance between proteinases and their naturally occurring inhibitors is the cause of these observed histologic abnormalities. Therefore, the purpose of this investigation was to determine if differences in the matrix metalloproteinase (MMP) -2 and -9, tissue inhibitor of metalloproteinase-1 (TIMP-1), tissue-type plasminogen activator (tPA), and urokinase-type plasminogen activator (uPA) protein and activity levels existed between infrarenal AAA and normal abdominal aortic tissue specimens.

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Neovascularization has recently been used as a new treatment for severe ischemic disease. We tried to induce therapeutic neovascularization by autologous bone marrow cell implantation (BMCI) in eight selected patients with chronic peripheral arterial disease (PAD), in whom traditional treatments had failed. Improvement of subjective symptoms was seen in seven patients after treatment.

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Purpose: To evaluate whether nonpenetrating vascular closure staples (VCS) and hepatocyte growth factor (HGF) can effectively prevent anastomotic intimal hyperplasia.

Methods: An expanded polytetrafluoroethylene graft, 2 mm in diameter, was implanted in the common carotid artery of rabbits divided into three experimental groups. In the control group, distal anastomosis was performed with interrupted suturing; in the VCS group, clips were applied along the lateral suture line after the placement of stay sutures; and in the VCS + HGF group, the same anastomotic technique was performed as in the VCS group, followed by the administration of the HGF for 4 days.

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Purpose: The major cause of vascular prosthesis failure is anastomotic intimal hyperplasia caused by the proliferation and migration of smooth muscle cells. Hepatocyte growth factor (HGF) is an endothelium-specific growth factor that exerts a mitogenic action on endothelial cells. This study was designed to examine the effect of HGF on the suppression of intimal hyperplasia after small-caliber expanded polytetrafluoroethylene (ePTFE) grafting.

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