379 research outputs found
LOW BMI IS THE RISK OF CARDIO-VASCULAR MORTALITY WITHOUT PROGRESSION OF CKD
The paradoxical risk of BMI on mortality is known in CKD as well in dialysis populations, but studies of CVD risk in CKD including underweight is limited. We hypothesized lean CKD increase the CVD risk, contributing different factors from obese. 2,676 CKD patients recruited from 11 outpatients’ hospitals. BMI and estimated GFR (eGFR) were calculated, and change of eGFR and CVD mortality during 2 years were collected. Patients were divided by BMI under cut off value of normal, thus 7% grouped in lean subjects (BMI <18.5). Systolic blood pressure (sBP), albumin, hemoglobin, age and prevalence of diabetes were lower in lean BMI group compared to other subjects. However CVD history, urinary protein, baseline eGFR and smoking didn't differ between the groups. The lean BMI increased significantly the risk of CVD mortality, in spite of low prevalence of comorbidities and young age in unadjusted model (HR 2.38, 95%CI 1.49-5.21, p<0.01). This significance remained after adjusted for CVD risk factors, such as primary disease of CKD, age, sex, smoking, albumin, cholesterol, sBP and eGFR. On the other hand, BMI was not associated with the decline rate of eGFR. We concluded that BMI less than 18.5 was an independent predictor of CVD, and that BMI did not effect on CKD progression rate in Japanese CKD
Cholesterol accumulation promotes photoreceptor senescence and retinal degeneration
PURPOSE: Dysregulated cholesterol metabolism is critical in the pathogenesis of AMD. Cellular senescence contributes to the development of numerous age-associated diseases. In this study, we investigated the link between cholesterol burden and the cellular senescence of photoreceptors.
METHODS: Retinas from rod-specific ATP binding cassette subfamily A member 1 (Abca1) and G member 1 (Abcg1) (Abca1/g1-rod/-rod) knockout mice fed with a high-fat diet were analyzed for the signs of cellular senescence. Real-time quantitative PCR and immunofluorescence were used to characterize the senescence profile of the retina and cholesterol-treated photoreceptor cell line (661W). Inducible elimination of p16(Ink4a)-positive senescent cells (INK-ATTAC) mice or the administration of senolytic drugs (dasatinib and quercetin: D&Q) were used to examine the impact of senolytics on AMD-like phenotypes in Abca1/g1-rod/-rod retina.
RESULTS: Increased accumulation of senescent cells as measured by markers of cellular senescence was found in Abca1/g1-rod/-rod retina. Exogenous cholesterol also induced cellular senescence in 661W cells. Selective elimination of senescent cells in Abca1/g1-rod/-rod;INK-ATTAC mice or by administration of D&Q improved visual function, lipid accumulation in retinal pigment epithelium, and Bruch\u27s membrane thickening.
CONCLUSIONS: Cholesterol accumulation promotes cellular senescence in photoreceptors. Eliminating senescent photoreceptors improves visual function in a model of retinal neurodegeneration, and senotherapy offers a novel therapeutic avenue for further investigation
A Large Cystic Phyllodes Tumor of the Prostate
We report a 65 year-old man with a large cystic phyllodes tumor of the prostate. The patient complained of abdominal discomfort and had a soft palpable mass. Computer tomography showed a solid and cystic mass in the pelvic fossa; the mass was adjacent only to the prostate. We excised the mass. Microscopic findings of the mass showed hyperplastic epithelium lined cysts with leaf-like intraluminal epithelia lined stromal projections, less than 2 mitotic counts/10 HPF, low-to-moderated cellularity, and mild-to-moderate cytoplasm atypia. The pathological findings were consistent with a phyllodes tumor of the prostate, a low-grade tumor. Twenty-eight months after the operation, the patient was well with no recurrence or metastases
Schwannomatosis Involving Peripheral Nerves: A Case Report
Schwannomatosis or neurilemmomatosis has been used to describe patients with multiple nonvestibular schwannomas with no other stigmata of neurofibromatosis type-2 (NF-2). In our case, schwannomatosis, multiple schwannomas were present in a 21-yr-old woman with no stigmata or family history of NF-1 or NF-2. She had no evidence of vestibular schwannoma or other intracranial tumors. Multiple peripheral tumors were found in the carotid space of the neck, and soft tissue of posterior shoulder, lower back, ankle and middle mediastinum. All of those tumors were completely limited to the right side of the body. All surgically removed tumor specimens in this patient proved to be schwannomas
Changes in Plasma Metabolites Concentrations in Obese Dogs Supplemented With Anti-oxidant Compound
The aim of this study is to discuss the effect of anti-oxidant supplement (Rv-PEM01-99, Kibun Foods, Inc., Tokyo, Japan) on changes in energy metabolism in obese dogs. 200 mg/kg/day of Rv-PEM01-99 (equivalent to 5 mg kg/day of quercetin derivative) were applied for 6 weeks to the Beagle dogs fed high fat diet (HFD) or control diet (CD). In the present study, body weight (BW) decreasing effect of Rv-PEM 01-99 in obese dogs was not clear. However, plasma alkaline phosphatase (ALP) activities at the end of experiment were significantly decreased compared to those at the start of experiment in obese dogs supplemented with Rv-PEM 01-99 (paired-t test, p < 0.05). In control dogs supplemented with Rv-PEM 01-99, Plasma malondialdehyde (MDA), and triglycerides (TG) levels and lactate dehydrogenase (LDH) activities were significantly decreased compared to those at the start of experiment (paired-t test, p < 0.05). From these findings, Rv-PEM 01-99 seems to be not harmful for dogs. Anti-lipid peroxide effect and liver function improvement are expected in the dogs supplemented with Rv-PEM 01-99
18F-FDG PET/CT in Primary AL Hepatic Amyloidosis Associated with Multiple Myeloma
We report here on a rare case of primary AL hepatic amyloidosis associated with multiple myeloma in a 64-year-old woman. The patient was referred for evaluating her progressive jaundice and right upper quadrant pain. 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) showed diffusely and markedly increased 18F-FDG uptake in the liver. Although there have been several case studies showing positive 18F-FDG uptake in pulmonary amyloidosis, to the best of our knowledge, the 18F-FDG PET/CT findings of hepatic amyloidosis or primary hepatic amyloidosis associated with multiple myeloma have not been reported previously
研究速報 : Making five atomic force microscope for 200,000yen each : A student project
特集2 日仏マイクロメカトロニクス国際共同研究組織(LIMMS
Sclerosing Encapsulating Peritonitis (Abdominal Cocoon) after Abdominal Hysterectomy
Sclerosing encapsulating peritonitis (SEP) is a poorly understood and rarely documented cause of small bowel obstruction. Although recurrent peritonitis has been reported as the main contributory factor leading to secondary SEP, the pathogenesis of primary (idiopathic) SEP is still uncertain
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