9 results on '"Maki Yoshioka"'
Search Results
2. Distant Metastasis from Benign Solitary Fibrous Tumor of the Kidney
- Author
-
Toru Nakano, Satetsu Miyano, Maki Yoshioka, Tatsuya Chikaraishi, Yuichi Sato, Hideo Sasaki, Yuichi Katsuoka, Tsuyoshi Kurihara, Masayuki Takagi, Iwao Uejima, and Masahiro Hoshikawa
- Subjects
Malignant ,Pathology ,medicine.medical_specialty ,Solitary fibrous tumor ,Kidney ,Lung ,business.industry ,medicine.medical_treatment ,CD34 ,medicine.disease ,Nephrectomy ,Metastasis ,Published online: January, 2013 ,medicine.anatomical_structure ,Nephrology ,Renal cell carcinoma ,medicine ,business ,Pathological - Abstract
Solitary fibrous tumor (SFT) rarely occurs in the kidneys, and only one reported case of renal SFT has shown distant metastasis. We report the second case of renal SFT exhibiting distant metastasis. A 48-year-old man was referred to our hospital because of a right renal mass. An abdominal CT scan detected a large renal tumor, which was suspected to be a renal cell carcinoma. Right radical nephrectomy was performed, and the tumor was found to measure 28 × 18 × 10 cm. The pathological diagnosis was benign solitary fibrous tumor of the kidney. Eight years after the operation, lung and liver metastases developed. Pulmonary segmentectomy and partial hepatectomy were performed. The pathological diagnoses of these resected tissue specimens were compatible with benign SFT.
- Published
- 2013
3. Eco-friendly removal of phosphate from aqueous solution using natural dietary fibers and minerals
- Author
-
Ho Hong Quyen, Maki Yoshioka, Le Thi Xuan Thuy, Masashi Kurashina, and Mikito Yasuzawa
- Subjects
0106 biological sciences ,Aqueous solution ,Calcium hydroxide ,010604 marine biology & hydrobiology ,Statistical and Nonlinear Physics ,010501 environmental sciences ,Condensed Matter Physics ,Phosphate ,01 natural sciences ,Environmentally friendly ,law.invention ,chemistry.chemical_compound ,Adsorption ,chemistry ,law ,Calcination ,Calcium oxide ,0105 earth and related environmental sciences ,Nuclear chemistry - Abstract
In this study, we focused on the investigation of phosphate removal using calcium oxide (CaO) and calcium hydroxide (Ca(OH)2) which are mainly from the calcined shells as adsorbents. Hydroxylapatite Ca[Formula: see text](PO4)6(OH)2, the component of industrial fertilizer was formed after the adsorption process following the XRD results. The phosphate removal increased from 20% to 97% with the aid of the mixture of flocculants alginic acid (AA), NaHCO3 and CaCl[Formula: see text] 2H2O in the case of 50 ppm phosphate concentration when the samples were filtered through 2.7 [Formula: see text]m particle retention filter paper which is roughly equivalent to the case of phosphate removal rate of 0.2 [Formula: see text]m membrane filter paper without flocculants (99%). The results suggest that AA, NaHCO3 and CaCl[Formula: see text]2H2O as the flocculants are effective for phosphate removal from 20 to 100 ppm.
- Published
- 2018
4. Urinary tract reconstruction using uretero-ureteral end-to-side anastomosis in kidney transplant recipients
- Author
-
Yugo Shibagaki, E. Matsuhashi, Tatsuya Chikaraishi, Kazuki Kitajima, Satetsu Miyano, Hiroo Kawarazaki, Maki Yoshioka, Yuichi Sato, Masahiko Yazawa, S. Hachisuka, Hideo Sasaki, Hiroya Kudo, T. Nishi, Kenjiro Kimura, Ryuto Nakazawa, Yuichi Katsuoka, and Naohiko Imai
- Subjects
Adult ,Male ,medicine.medical_specialty ,Urinary system ,Urinary Bladder ,Urology ,Anastomosis ,Ureter ,Renal Dialysis ,Medicine ,Humans ,Hydronephrosis ,Ligation ,Kidney transplantation ,Retrospective Studies ,Transplantation ,Urinary bladder ,business.industry ,Anastomosis, Surgical ,Middle Aged ,Plastic Surgery Procedures ,medicine.disease ,Kidney Transplantation ,Surgery ,medicine.anatomical_structure ,Kidney Failure, Chronic ,Anuria ,Female ,medicine.symptom ,Atrophy ,business - Abstract
Background In kidney transplant recipients, the most widely used method for the reconstruction of the urinary pathway is ureteroneocystostomy, which may be difficult in cases with disused atrophic bladder. In this study, we evaluated kidney transplant recipients who underwent uretero-ureteral end-to-side anastomosis (UUA) in urinary reconstruction due to disused atrophic bladder. Methods To clarify the effectiveness of this method, we retrospectively reviewed the clinical records of kidney transplant recipients in our hospital. Results A total of 9 recipients with urinary reconstruction using UUA were evaluated. All of these patients had a history of long-term hemodialysis before transplantation, accompanied by complete anuria and small capacity of the bladder. In 4 patients, cranial native ureter was ligated, whereas it was not ligated in the remaining 5 patients. In 2 of 4 patients with cranial ligation, hydronephrosis developed in the native kidney with no further treatment being required. No patients experienced urinary tract complications including hydronephrosis in the graft, urine extravasation, or urinary tract infection in the follow-up period (757.6 ± 491.3 days). Allograft function was maintained well in all patients (serum creatinine level, 1.08 ± 0.23 mg/dL). Conclusions Although UUA is not a routine method of urinary reconstruction in kidney transplantation, it can be safely performed and should be a surgical option, especially for recipients with disused atrophic bladder. The ligation of cranial native ureter may lead to hydronephrosis of the native kidney, and it is tentatively concluded that UUA without native ureteral ligation is clinically feasible.
- Published
- 2014
5. Subcutaneous pathway diversion for peritoneal dialysis catheter salvage
- Author
-
Tsutomu, Sakurada, Takeshi, Okamoto, Daisuke, Oishi, Kenichiro, Koitabashi, Shina, Sueki, Nagayuki, Kaneshiro, Katsuomi, Matsui, Ryuto, Nakazawa, Maki, Yoshioka, Yusuke, Konno, Yuichi, Sato, Yugo, Shibagaki, Tatsuya, Chikaraishi, and Kenjiro, Kimura
- Subjects
Adult ,Male ,Salvage Therapy ,Middle Aged ,Catheterization ,Catheters, Indwelling ,Subcutaneous Tissue ,Treatment Outcome ,Catheter-Related Infections ,Humans ,Kidney Failure, Chronic ,Female ,Peritoneal Dialysis ,Aged ,Retrospective Studies - Abstract
Peritoneal dialysis (PD) catheter-related infection is still is the most troublesome problem for continuation of PD without the need to switch to hemodialysis. We have been performing subcutaneous pathway diversion (SPD) as a surgical treatment for refractory exit-site and tunnel infection (ESTI). To clarify the efficacy and safety of SPD, we conducted a retrospective study. From August 2008 to August 2013, 30 SPDs were performed in 26 patients (16 men, 10 women; mean age: 58 +/- 13 years; 54% with diabetes; mean body mass index: 23.9 +/- 3.5 kg/ m2). The reasons for the SPDs were ESTI in 25 patients, and outer cuff extrusion in 1 patient. All patients resumed PD immediately after SPD, and the duration of hospitalization was 11.7 +/- 10.1 days. After SPD, one patient experienced a dialysate leak, and another patient experienced a mild subcutaneous hematoma. Another 4 patients developed exit-site infection (ESI) and underwent a second SPD. Of those 4 patients, 3 presented with another ESI unrelated to the first episode, and all developed an ESI after 6 months or more. The remaining 20 patients experienced no such complications. Furthermore, catheter survival after SPD was 17.4 +/- 13.4 months. To eradicate ESTTI we suggest that SPD, which does not require catheter removal or interruption of PD, is useful compared with the unroofing technique or catheter removal.
- Published
- 2014
6. Sodium-Coupled Glucose Transporter as a Functional Glucose Sensor of Retinal Microvascular Circulation
- Author
-
Masako Kato, Mototaka Yoshinari, Maki Yoshioka, Takanari Kitazono, Masanori Wakisaka, Yuji Uchizono, and Udai Nakamura
- Subjects
medicine.medical_specialty ,Monosaccharide Transport Proteins ,Physiology ,Phlorizin ,Sodium ,chemistry.chemical_element ,Deoxyglucose ,Carbohydrate metabolism ,Sodium-Calcium Exchanger ,Amiloride ,chemistry.chemical_compound ,Internal medicine ,medicine ,Extracellular ,Animals ,Vasoconstrictor Agents ,Channel blocker ,Cell Size ,Dose-Response Relationship, Drug ,Chemistry ,Angiotensin II ,Microcirculation ,Glucose transporter ,Methylglucosides ,Retinal Vessels ,Carbohydrate ,Calcium Channel Blockers ,Glucose ,Phlorhizin ,Endocrinology ,medicine.anatomical_structure ,Biophysics ,Calcium ,Cattle ,Pericyte ,Extracellular Space ,Pericytes ,Cardiology and Cardiovascular Medicine - Abstract
Abstract —To clarify the function of the Na + -coupled glucose transporter in the regulation of cellular tone of cultured retinal pericytes, we investigated the effects of extracellular glucose concentration on cell size. The surface area and diameter of cultured bovine retinal pericytes under different glucose concentrations were measured by using a light microscope with a digital camera. We also examined the effects of extracellular Na + and Ca 2+ , inhibitors of the Na + -coupled glucose transporter and Na + -Ca 2+ exchanger, a Ca 2+ channel blocker, and nonmetabolizable sugars on cell size. The surface area and diameter of the cells changed according to extracellular glucose concentrations. α-Methyl glucoside, which enters the cell through the Na + -coupled glucose transporter, induced cellular contraction. However, the cells did not contract in response to 2-deoxyglucose, which enters the cell through a facilitated glucose transporter. Glucose-induced cellular contraction was abolished in the absence of extracellular Na + and Ca 2+ . Moreover, phlorizin, an inhibitor of the Na + -coupled glucose transporter, and 2′,4′-dichlorobenzamil-HCl, an inhibitor of the Na + -Ca 2+ exchanger, also abolished glucose-induced cellular contraction, whereas nicardipine, a Ca 2+ channel blocker, did not. Our results indicate that high extracellular glucose concentrations induce contraction of bovine retinal pericytes via Na + entry through a Na + -coupled glucose transporter, suggesting that the Na + -coupled glucose transporter may act as a functional glucose sensor of retinal microvascular circulation.>
- Published
- 2001
7. Internal Jugular Vein Thrombosis, Lemierre's Syndrome; Oropharyngeal Infection with Antibiotic and Anticoagulation Therapy
- Author
-
Shin Nakamura, Seizo Sadoshima, Yasufumi Doi, Maki Yoshioka, Shigeru Yamashita, Hiroki Gotoh, and Kaoru Onoyama
- Subjects
Adult ,Male ,medicine.medical_specialty ,Thrombophlebitis ,03 medical and health sciences ,0302 clinical medicine ,Jugular vein ,Lemierre's syndrome ,Humans ,Medicine ,Septic thrombophlebitis ,Thrombus ,030223 otorhinolaryngology ,Internal jugular vein ,030203 arthritis & rheumatology ,business.industry ,Pharyngitis ,medicine.disease ,Magnetic Resonance Imaging ,Thrombosis ,Surgery ,Pulmonary embolism ,cardiovascular system ,Radiology ,Jugular Veins ,Tomography, X-Ray Computed ,Cardiology and Cardiovascular Medicine ,business - Abstract
The authors present a case of Lemierre's syndrome that is an uncommon septic throm bophlebitis of the internal jugular vein. A 31-year-old man developed pharyngeal pain one month before hospital admission when he suffered from a severe headache and painful swelling of the left side of his neck. He was diagnosed with tonsillitis. Contrast- enhanced computed tomography and magnetic resonance imaging of the neck revealed the presence of an occlusive thrombosis of the left internal jugular vein and an inflamed mesopharynx. His symptoms and the jugular vein thrombus showed remarkable improve ment after administration of antibiotic and anticoagulation therapy. No pulmonary embolism or other metastatic infection were observed. It was suggested that accurate diagnosis during early treatment is essential to obtain a successful prognosis for Lemierre's syndrome.
- Published
- 2000
8. Risk factors associated with inadequate veins for placement of arteriovenous fistulas for hemodialysis
- Author
-
Satetsu Miyano, Tsutomu Sakurada, Hideo Sasaki, Tatsuya Chikaraishi, Yuichi Sato, Ryuto Nakazawa, Masahito Miyamoto, Shina Sueki, Maki Yoshioka, and Kenjiro Kimura
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,Biomedical Engineering ,Medicine (miscellaneous) ,Arteriovenous fistula ,Veins ,Biomaterials ,Arteriovenous Shunt, Surgical ,Forearm ,Risk Factors ,medicine.artery ,medicine ,Humans ,Treatment Failure ,Radial artery ,Risk factor ,Aged ,Retrospective Studies ,Cephalic vein ,Aged, 80 and over ,business.industry ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Surgery ,Cardiac surgery ,medicine.anatomical_structure ,Female ,Hemodialysis ,Cardiology and Cardiovascular Medicine ,business - Abstract
An arteriovenous fistula (AVF) between the radial artery and cephalic vein at the wrist is the preferred type of hemodialysis vascular access. However, in the practice of access placement, we are aware that some patients fail to form the standard forearm radial–cephalic AVF, owing to naturally small veins or acquired abnormal lesions of the veins. To identify the risk factors for failure to form the standard AVF, we examined 305 consecutive patients who underwent first-time access surgery at our hospital from January 2006 to December 2010. We compared the patients’ characteristics between those having normal vessels and successfully forming the standard AVF, and those having apparently abnormal vessels and thus forming alternative types of access instead. Histories of major and minor surgery were specifically evaluated, assuming that surgical procedures in the past could potentially damage the superficial veins. We created 207 standard and 98 alternative accesses during the period and found that significantly more patients with alternative accesses (31 %) had undergone major surgery of a variety of specialties, in comparison with those with the standard AVF (15.0 %). Multivariate logistic analysis revealed that a history of major surgery (OR = 2.39, 95 %CI 1.29–4.47, p = 0.006) and female gender (OR = 1.87, 95 %CI 1.10–3.20, p = 0.02) were independent risk factors associated with failure to construct the standard AVF. Our results indicate that previous surgery can damage the superficial veins and cause venous abnormality, which makes construction of the standard AVF difficult. We propose that care should be taken to preserve the superficial veins when patients for whom dialysis therapy is a future possibility undergo surgical procedures, especially invasive ones.
- Published
- 2013
9. Orthostatic hypertension in patients with type 2 diabetes
- Author
-
Yuji Uchizono, Udai Nakamura, Masanori Iwase, Maki Yoshioka, Masanori Wakisaka, and Mototaka Yoshinari
- Subjects
Male ,medicine.medical_specialty ,Systole ,Endocrinology, Diabetes and Metabolism ,Posture ,Diastole ,Sensation ,Type 2 diabetes ,Vibration ,Orthostatic vital signs ,Electrocardiography ,Internal medicine ,Diabetes mellitus ,Internal Medicine ,medicine ,Humans ,Advanced and Specialized Nursing ,business.industry ,Middle Aged ,medicine.disease ,Surgery ,Blood pressure ,Diabetes Mellitus, Type 2 ,Hypertension ,Cardiology ,Orthostatic hypertension ,medicine.symptom ,Complication ,business - Abstract
OBJECTIVE—The prevalence and clinical importance of orthostatic hypertension (OHT) in diabetic patients has not been elucidated, in contrast to orthostatic hypotension, which is occasionally found in diabetic patients with autonomic neuropathy. RESEARCH DESIGN AND METHODS—The prevalence and severity of orthostatic hypertension was investigated in 277 Japanese male patients with type 2 diabetes, including 90 hypertensive patients and 128 nondiabetic age-matched male subjects. Patients treated with antihypertensive drugs were excluded from the study. OHT was defined as an increase in diastolic blood pressure (DBP) from RESULTS—The prevalence of OHT in normotensive and hypertensive diabetic patients was significantly higher than in control subjects (12.8 vs. 1.8%, P < 0.01, for normotensive patients; 12.6 vs. 11.1%, not significant, for hypertensive patients). Orthostasis induced a mean increase of 6.8 ± 11.4 mmHg in SBP and 9.1 ± 5.2 mmHg in DBP in diabetic patients with OHT compared with those without OHT (−1.0 ± 9.0 and 3.8 ± 6.6 mmHg, respectively). Vibration sensation in the lower limb was reduced in diabetic patients with OHT, but the percent coefficient of variation of RR interval, cardio-to-thoracic ratio on chest X-ray, and serum triglyceride levels were higher in these patients compared with normotensive diabetic patients without OHT. CONCLUSIONS—Orthostatic hypertension is a novel complication in normotensive diabetic patients and may associate with early stage neuropathy and development of sustained hypertension.
- Published
- 2001
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.