1.Differences in the effects of BMI on bone microstructure between loaded and unloaded bones assessed by HR-pQCT in Japanese postmenopausal women
Norifumi FUJII ; Manabu TSUKAMOTO ; Nobukazu OKIMOTO ; Miyuki MORI ; Yoshiaki IKEJIRI ; Toru YOSHIOKA ; Makoto KAWASAKI ; Nobuhiro KITO ; Junya OZAWA ; Ryoichi NAKAMURA ; Shogo TAKANO ; Saeko FUJIWARA
Osteoporosis and Sarcopenia 2021;7(2):54-62
Objectives:
The relationship between weight-related load and bone mineral density (BMD)/bone microstructure under normal load conditions using high-resolution peripheral quantitative computed tomography (HR-pQCT) remains unconfirmed. The study aims to investigate the differences in effect of body mass index (BMI) on BMD/bone microstructure of loaded and unloaded bones, respectively, in Japanese postmenopausal women.
Methods:
Fifty-seven postmenopausal women underwent HR-pQCT on the tibia and radius. Correlation analysis, principal component (PC) analysis, and hierarchical multiple regression were performed to examine the relationship between BMI and HR-pQCT parameters.
Results:
Several microstructural parameters of the tibia and radius correlated with BMI through a simple correlation analysis, and these relationships remained unchanged even with an age-adjusted partial correlation analysis. PC analysis was conducted using seven bone microstructure parameters. The first PC (PC1) reflected all parameters of trabecular and cortical bone microstructures, except for cortical porosity, whereas the second PC (PC2) reflected only cortical bone microstructure. Hierarchical multiple regression analysis indicated that BMI was more strongly related to BMD/bone microstructure in the tibia than in the radius. Furthermore, BMI was associated with trabecular/cortical BMD, and PC1 (not PC2) of the tibia and radius. Thus, BMI was strongly related to the trabecular bone microstructure rather than the cortical bone microstructure.
Conclusions
Our data confirmed that BMI is associated with volumetric BMD and trabecular bone microstructure parameters in the tibia and radius. However, although BMI may be more related to HRpQCT parameters in the tibia than in the radius, the magnitude of association is modest.
3.Differences in the effects of BMI on bone microstructure between loaded and unloaded bones assessed by HR-pQCT in Japanese postmenopausal women
Norifumi FUJII ; Manabu TSUKAMOTO ; Nobukazu OKIMOTO ; Miyuki MORI ; Yoshiaki IKEJIRI ; Toru YOSHIOKA ; Makoto KAWASAKI ; Nobuhiro KITO ; Junya OZAWA ; Ryoichi NAKAMURA ; Shogo TAKANO ; Saeko FUJIWARA
Osteoporosis and Sarcopenia 2021;7(2):54-62
Objectives:
The relationship between weight-related load and bone mineral density (BMD)/bone microstructure under normal load conditions using high-resolution peripheral quantitative computed tomography (HR-pQCT) remains unconfirmed. The study aims to investigate the differences in effect of body mass index (BMI) on BMD/bone microstructure of loaded and unloaded bones, respectively, in Japanese postmenopausal women.
Methods:
Fifty-seven postmenopausal women underwent HR-pQCT on the tibia and radius. Correlation analysis, principal component (PC) analysis, and hierarchical multiple regression were performed to examine the relationship between BMI and HR-pQCT parameters.
Results:
Several microstructural parameters of the tibia and radius correlated with BMI through a simple correlation analysis, and these relationships remained unchanged even with an age-adjusted partial correlation analysis. PC analysis was conducted using seven bone microstructure parameters. The first PC (PC1) reflected all parameters of trabecular and cortical bone microstructures, except for cortical porosity, whereas the second PC (PC2) reflected only cortical bone microstructure. Hierarchical multiple regression analysis indicated that BMI was more strongly related to BMD/bone microstructure in the tibia than in the radius. Furthermore, BMI was associated with trabecular/cortical BMD, and PC1 (not PC2) of the tibia and radius. Thus, BMI was strongly related to the trabecular bone microstructure rather than the cortical bone microstructure.
Conclusions
Our data confirmed that BMI is associated with volumetric BMD and trabecular bone microstructure parameters in the tibia and radius. However, although BMI may be more related to HRpQCT parameters in the tibia than in the radius, the magnitude of association is modest.
4.Long-term outcome after surgery in a patient with intestinal Behçet’s disease complicated by myelodysplastic syndrome and trisomy 8
Yuki MORI ; Fumihiko IWAMOTO ; Yasuaki ISHIDA ; Toru KUNO ; Shoji KOBAYASHI ; Takashi YOSHIDA ; Tatsuya YAMAGUCHI ; Tadashi SATO ; Makoto SUDO ; Daisuke ICHIKAWA ; Nobuyuki ENOMOTO
Intestinal Research 2020;18(4):469-475
Behçet’s disease (BD) is a multisystem inflammatory disease of unknown origin. Rarely, BD occurs together with myelodysplastic syndrome (MDS). Interestingly, it is speculated that these are not simple coexistence but that the etiology of intestinal BD is at least partly derived from MDS itself. Furthermore, there is a relationship between MDS in patients with intestinal BD and trisomy 8. Immunosuppressive agents alone are insufficient to control MDS-associated BD, and many of these patients die of infection or hemorrhage. Surgery is considered for intestinal BD patients who are unresponsive to medical treatment or those with bowel complications such as perforation or persistent bleeding. We report a case of intestinal BD associated with MDS and trisomy 8. The patient was unresponsive to oral steroids and immunosuppressive treatment; the patient improved by surgical repair of a bowel perforation. Five years after the surgery, the patient is free of recurrence and not on medication. Our experience suggests that surgery may provide an effective therapeutic option for the treatment of MDS-related BD.
5.Low-Dose Pegylated Interferon α-2b Plus Ribavirin for Elderly and/or Cirrhotic Patients with Genotype 2 Hepatitis C Virus.
Hideyuki TAMAI ; Naoki SHINGAKI ; Yoshiyuki MORI ; Kosaku MORIBATA ; Akira KAWASHIMA ; Yoshimasa MAEDA ; Toru NIWA ; Hisanobu DEGUCHI ; Izumi INOUE ; Takao MAEKITA ; Mikitaka IGUCHI ; Jun KATO ; Masao ICHINOSE
Gut and Liver 2016;10(4):617-623
BACKGROUND/AIMS: This study aimed to predict sustained viral response (SVR) to low-dose pegylated interferon (PEG-IFN) plus ribavirin of elderly and/or cirrhotic patients with genotype 2 hepatitis C virus (HCV) using viral response within 2 weeks. METHODS: Low-dose PEG-IFN-α-2b plus ribavirin was administered to 50 elderly and/or cirrhotic patients with genotype 2 HCV for 24 weeks. The dynamics of HCV RNA and HCV core antigen levels within 2 weeks were measured. RESULTS: The patients' median age was 66 years. There were 21 male and 29 female patients. The median baseline HCV RNA level was 5.7 log IU/mL. Rapid viral response was achieved in 17 patients (34%), SVR in 28 (56%), and two (4%) discontinued treatment. Univariate analysis of factors contributing to SVR showed significant differences for sex, baseline virus level, and response within 4 weeks. When 40 fmol/L was set as the cutoff value for the core antigen level at 1 week, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for predicting SVR were 93%, 75%, 84%, 88%, and 85%, respectively. CONCLUSIONS: Low-dose PEG-IFN plus ribavirin was a safe and cost-effective treatment for elderly and/or cirrhotic patients with genotype 2 HCV, and the viral response within 2 weeks was a useful predictor of SVR.
Aged*
;
Female
;
Genotype*
;
Hepacivirus*
;
Hepatitis C*
;
Hepatitis*
;
Humans
;
Interferons*
;
Liver Cirrhosis
;
Male
;
Ribavirin*
;
RNA
;
Sensitivity and Specificity
6.Chronic Lymphocytic Inflammation with Pontine Perivascular Enhancement Responsive to Steroids with a Significant Elevation of beta-2 Microglobulin Levels.
Naoaki FUJISAWA ; Soichi OYA ; Harushi MORI ; Toru MATSUI
Journal of Korean Neurosurgical Society 2015;58(5):487-490
Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is a relapsing-remitting disorder for which steroid administration is a key to control the progression. CLIPPERS can exhibit radiological features similar to malignant lymphoma, whose diagnosis is confounded by prior steroid administration. We report a case of CLIPPERS accompanied by abnormal elevation of beta-2 microglobulin in the cerebrospinal fluid (CSF). A 62-year-old man started to experience numbness in all fingers of his left hand one year ago, which gradually extended to his body trunk and legs on both sides. Magnetic resonance imaging demonstrated numerous small enhancing spots scattered in his brain and spinal cord. CSF levels of beta-2 microglobulin were elevated; although this often indicates central nervous system involvement in leukemia and lymphoma, the lesions were diagnosed as CLIPPERS based on the pathological findings from a biopsy specimen. We emphasize the importance of biopsy to differentiate between CLIPPERS and malignant lymphoma because the temporary radiological response to steroid might be the same in both diseases but the treatment strategies regarding the use of steroid are quite different.
Biopsy
;
Brain
;
Central Nervous System
;
Cerebrospinal Fluid
;
Diagnosis
;
Fingers
;
Hand
;
Humans
;
Hypesthesia
;
Inflammation*
;
Leg
;
Leukemia
;
Lymphoma
;
Magnetic Resonance Imaging
;
Middle Aged
;
Spinal Cord
;
Steroids*
7.Retrospective analysis of palliative care as performed concurrently with cancer treatment
Takura Ochi ; Hisashi Nakahashi ; Shinzo Tsubota ; Toru Sasaki ; Naoki Nishikubo ; Yoji Mori ; Miyuki Yoshida
Palliative Care Research 2015;10(1):922-925
Purpose:This study aims to clarify the current situation where palliative care is concurrently performed with cancer therapy, and its effectiveness. Methods:Medical charts of patients cared for at home between April 1, 2012 and March 31, 2013 were retrospectively investigated. Results:14 out of 192 home-care cancer patients were given chemotherapy. The palliative medication period was 192 days and chemotherapy lasted 89.8 days on average. From the beginning of home palliative care until death, patients received chemotherapy for almost half of this period. Consideration:By establishing trust between patients and caregivers, palliative care serves the patients needs well, even after cancer treatment is completed. Home palliative care is a significant part of the entire process.
8.Construction of 24-hour cooperation with family doctors in palliative care unit
Takura Ochi ; Hisashi Nakahashi ; Naoki Nishikubo ; Toru Sasaki ; Yoji Mori ; Kazumi Uesugi ; Takako Ohta
Palliative Care Research 2014;9(2):915-919
Purpose: The prefered location for recuperation of cancer patients is constantly changing. In order to meet the request of the patients and their family that they want to stay at home, our answer is to provide a “back-up bed” on the role for our palliative care unit. We developed a 24-hr hot line (Bethel Hospice Hotline; HL), and carried out HL from April 2010. For the purpose of future enhancement of cooperation, we examined the case of HL history over 3 years. Methods: Palliative care physicians interviewed patients and their families, explained the mechanism of cooperation to their family doctors. With their consent patients were registered to the HL. Results: 75 cases of HL registration from April 2010 to April 2013, 63 cases were supported by home care supporting clinics, 7 by other clinics, 3 by other hospitals and 2 others. The demands of family doctors upon HL: 69 cases were back bed and 14 cases required consultation for symptom relief. Our results show 42 (21 were emergency) patients admitted to our hospital, 18 received care at home supported family doctors, 4 were admitted to other hospitals, and 11 are ongoing. Conclusion: Since half of the admissions (21/42 cases, 6 were off hours) to our hospital were emergency, it is necessary to promote efficient cooperation to reduce the burden of the family doctors and the palliative care unit. Thus, it is expected to relieve the symptoms from early stages of the illness and to facilitate timely hospitalization.
9.Retrospective evaluation of morphine for dyspnea in terminal cancer patients
Takura Ochi ; Hisashi Nakahashi ; Naoki Nishikubo ; Akira Takeuchi ; Toru Sasaki ; Yoji Mori
Palliative Care Research 2013;8(2):334-340
Purpose: This retrospective study aims to evaluate the effectiveness and safety of morphine for the management of dyspnea in terminal cancer patients. Methods: 64 terminal cancer patients, who had morphine administered for dyspnea management, were investigated. Dyspnea was assessed daily on the numerical rating scale (NRS; 0-5) before and 48 hours after the administration, and at the point of dose modifications. Result: The medication period was 34.7 days and the daily dose of morphine was 93.0 mg. The mean NRS decreased from 3.5 to 1.6 (p<0.001). 46 patients (72%) were started with an oral administration of normal-release morphine when-required. The major side effects of morphine, such as hypoxemia or decrease in respiratory rate, were not observed. Conclusion: Morphine is effective and safe for the management of dyspnea even in terminal cancer patients with careful titration.
10.Calcitonin induces connective tissue growth factor through ERK1/2 signaling in renal tubular cells.
Misa NAKAMURA ; Takashi OZAKI ; Aiko ISHII ; Masayoshi KONISHI ; Yuji TSUBOTA ; Toru FURUI ; Hayato TSUDA ; Ichiro MORI ; Kiichiro OTA ; Kennichi KAKUDO
Experimental & Molecular Medicine 2009;41(5):307-314
Calcitonin (CT), a polypeptide hormone, plays important roles in a variety of physiological processes. CT has been used clinically to treat osteoporosis and humoral hypercalcemia of malignancy. In order to clarify the pharmacological effects of CT in the kidney, we identified potential downstream genes induced by CT in the renal cells. Using a cDNA subtraction hybridization method, we identified connective tissue growth factor (CTGF) as a CT-induced gene in the porcine renal cell line, LLC-PK1. Furthermore, we found that CT-mediated induction of the gene was not inhibited by cycloheximide, which suggests that CTGF gene was not induced by an increased synthesis of regulating proteins. Therefore, CTGF is an immediate early gene. We further demonstrated that the regulation of CTGF gene expression by CT involved the ERK1/2 pathway, because PD98059, a MEK1 inhibitor, partially inhibited the mRNA expression of CTGF induced by CT. CT-induced CTGF protein expression was also observed in vivo. Our present findings suggest that CT induces the transcription of CTGF through ERK1/2 phosphorylation. We also identified twelve other genes induced by CT that, like CTGF, were related to wound healing. These results suggest that CT may have an effect on renal differentiation and wound healing in the kidney.
Animals
;
Calcitonin/*pharmacology
;
Cell Line
;
Connective Tissue Growth Factor/*genetics/metabolism
;
Female
;
Kidney Tubules, Proximal/*enzymology/metabolism
;
*MAP Kinase Signaling System
;
Mice
;
Mice, Inbred BALB C
;
Mitogen-Activated Protein Kinase 1/*metabolism
;
Mitogen-Activated Protein Kinase 3/*metabolism
;
Phosphorylation
;
Swine


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