Search PubMed⌕ Search

Biomedical subjects

M Fujishima

Publications and source records attributed to M Fujishima.

At least 685 records · Page 38Linked to original sources
PubMed1989

Effects of sodium depletion and orthostasis on plasma and urinary vasopressin in normal subjects.

We investigated the effects of sodium depletion and orthostasis on the plasma concentration and urinary excretion of vasopressin (AVP) in eight normal female subjects. After 4 days on a sodium controlled diet (130 mEq/day), the subjects were placed on a low sodium diet (30 mEq/day) for 3 days and 120 mg of furosemide was administered orally on the first day of the low sodium regimen. Sodium depletion in the present study reduced body weight by 1.6 kg and increased hematocrit by 3.5%. A significant (p less than 0.05) increase in plasma AVP and a significant (p less than 0.05) decrease in 24-h urinary excretion of AVP were observed during sodium depletion. One-hour ambulation significantly increased plasma AVP in both control and sodium depleted phases (p less than 0.01). The percent change in plasma AVP tended to correlate with that in mean blood pressure in the control phase (r = 0.69, 0.05 less than p less than 0.1), and significantly correlated in the sodium depleted phase (r = 0.86, p less than 0.01). The present results suggest that AVP may play an important role in the maintenance of blood pressure during orthostasis in the sodium depleted state.

Adult↗
PubMed1989

A case of normotensive primary aldosteronism with hypopituitarism, epilepsy, and medullary sponge kidney.

A 55-year-old man with normotensive primary aldosteronism, hypopituitarism, epilepsy, and medullary sponge kidney is reported. Seventeen years before admission, he had been noted to have hypokalemia associated with high potassium clearance, suppressed plasma renin activity, metabolic alkalosis, and normal blood pressure as well as low urinary excretion of 17-hydroxycorticosteroids. He kept normotensive in spite of hyperaldosteronism until nine months after the initiation of replacement therapy with glucocorticoid and thyroxine for hypopituitarism, when he became hypertensive. Hypopituitarism seemed to play a role in keeping a normal blood pressure despite long-standing hyperaldosteronism.

Adrenal Glands↗
PubMed1989

Liver, kidney and islet cell tumors in spontaneously hypertensive and normotensive rats treated neonatally with streptozotocin.

We studied the oncogenic action of neonatal streptozotocin (STZ) treatment in spontaneously hypertensive rats (SHR) and normotensive Wistar Kyoto rats (WKY) for 12 months. Two-day-old male neonates were intraperitoneally injected with STZ of which doses were 37.5-75.0 mg/kg for SHR and 100.0-150.0 mg/kg for WKY. The 12-month survival rate was 16 of 22 (73%) in SHR and 10 of 14 (71%) in WKY, respectively. The incidence of tumors in STZ-treated SHR was 27% in liver, 14% in kidney and 5% in liver and kidney, being related to the dose of STZ given, namely, 25% in 37.5 mg/kg, 50% in 50.0 or 62.5 mg/kg and 75% in 75.0 mg/kg. In STZ-treated WKY which survived 12 months, all had tumors, namely, 70% in liver, 20% in kidney and 10% in liver and kidney. Histological features of liver and kidney tumors were characteristic of hepatoma and nephroblastoma, respectively. Islet cell tumor was evident in 4 of 10 (40%) in SHR treated with lower doses of STZ (less than or equal to 50 mg/kg) but not in SHR and WKY treated with higher doses (62.5-150.0 mg/kg). The present study indicates that neonatal STZ treatment has the oncogenic action on liver, kidney and pancreatic islet.

Animals↗
PubMed1989

Diuretics and other antihypertensive drugs and glycemic control in non-insulin-dependent diabetics with hypertension. A survey by the Fukuoka Diabetes Clinic Group.

We compared the levels of fasting plasma glucose (FPG) and glycosylated hemoglobin (HbA1) in non-insulin-dependent diabetics with hypertension who were treated with monotherapy of diuretics or other antihypertensive drugs (AHD) and in those who were not given any AHD. Total 162 patients were divided into the four groups; the control group without AHD (n = 45), the diuretics group (n = 42), the beta-blocker group (n = 30) and the Ca-antagonist group (n = 45). FPG and HbA1 levels were 153 +/- 44 mg/dl and 10.0 +/- 2.3% for the control group, 145 +/- 55 mg/dl and 9.8 +/- 2.2% for the diuretics, 165 +/- 63 mg/dl and 10.2 +/- 2.1% for the beta-blocker and 158 +/- 42 mg/dl and 10.4 +/- 2.0% for the Ca-antagonist, respectively. There were no significant differences in the levels of FPG and HbA1 among the four groups. Multivariate analysis also revealed no difference in glycemic control even when anti-diabetic treatment (diet alone, oral hypoglycemic agents or insulin), body mass index, serum potassium, systolic and diastolic blood pressures and age were taken into account. Blood pressure levels did not differ among the groups except control and they were well controlled at the low doses of AHD. Our results suggest that the choice of low dose diuretics for the treatment of hypertension in non-insulin-dependent diabetics might not be necessarily excluded by the only reason of the possible deleterious influence on glycemic control.

Adrenergic beta-Antagonists↗
PubMed1989

Sympathetic response to oral glucose load is altered in hypertensive subjects.

Blood pressure, plasma norepinephrine (NE) and epinephrine (E) levels in responses to oral glucose load (OGTT) and to head-up tilting (Tilt) were measured in 14 hypertensive (HT) and 17 normotensive subjects (NT). In response to OGTT, NE significantly increased within 30 minutes (+25 +/- 8%; p less than 0.05) in NT, followed by a decline to the basal level, while it remained unchanged in HT (+5 +/- 8%). E decreased similarly during OGTT in both groups. Mean blood pressure, however, fell only in HT (-3.3 +/- 1.1%; p less than 0.05) but did not change in NT. Blood pressure, NE and E responses to Tilt did not differ between NT and HT. These results suggest that hypertensive subjects have some defects in sympathetic activation in response to glucose loading.

Administration, Oral↗
PubMed1989

[A case of systemic lupus erythematosus associated with lateral medullary syndrome and unilateral internuclear ophthalmoplegia].

A rare case of systemic lupus erythematosus (SLE) associated with lateral medullary syndrome and unilateral internuclear ophthalmoplegia was reported. A 15 year old girl was admitted to Kyushu University hospital on 2 September in 1987 because of vertigo, occular symptom, and sensory disturbance. She had noted vertigo since 28 August. On admission she had nystagmus, left Horner syndrome, sensory disturbance of left hemiface and right limbs and trunk and mild hemiparesis of right limbs. She also had a discoid erythema behind the left ear, butterfly rash on her cheek. She developed right internuclear ophthalmoplegia on 6 September. Investigations revealed biological false positive of serological test for syphilis, positive antinuclear antibodies, and prolonged APTT. Peripheral blood cell count and erythrocyte sedimentation rate were normal. There was no proteinuria. Computed tomography and magnetic resonance imaging failed to detect any lesions in the brain. Cerebrospinal fluid cell count was 20/3 and Ig-G index was 17.1%. Her neurological signs were thought to be related to SLE. Lupus anticoagulant might be responsible for the development of impairment of central nervous system (CNS). She was treated with prednisolone, initial dose of 40mg, and the symptoms and signs were improved quickly. Early diagnosis and treatment for SLE with CNS involvement is primarily important.

Adolescent↗
PubMed1989

[Renal function in patients with yusho].

Renal functions were examined in 102 patients with yusho in 1988, Frequencies of proteinuria, microhematuria and history of renal diseases were not different from 20 age-matched controls. The means of blood urea nitrogen, serum creatinine and serum uric acid levels of yusho patients did not differ from those of controls. The levels of serum beta 2-microglobulin and its urinary excretion showed no difference between two groups. Serum concentrations of sodium, potassium, chloride, calcium and phosphorus revealed no abnormality in all patients except for one who had hypophosphatemia. Urinary excretions of phosphorus, however, were significantly higher in yusho patients than in controls. Serum PCB levels, which were still higher in yusho patients, did not correlate with urinary excretions of phosphorus. The mechanism and the clinical significance of this phenomenon remain to be elucidated.

Adult↗
PubMed1989

Morphometrical and biochemical differences of endocrine pancreata between spontaneously hypertensive and normotensive rats with or without neonatal streptozotocin-induced diabetes.

We studied the morphometrical and biochemical changes of endocrine pancreata in spontaneously hypertensive rats (SHR) and normotensive Wistar Kyoto rats (WKY) with or without noninsulin-dependent diabetes mellitus induced by neonatal streptozotocin (STZ) treatment at 4 months of age. Female (2-day-old) neonates were intraperitoneally injected with 62.5 or 75.0 mg/kg of STZ for SHR, 87.5 or 100.0 mg/kg of STZ for WKY, and vehicle for control. In STZ-treated groups, overt hyperglycemia developed in SHR with significantly decreased serum immunoreactive insulin (IRI), whereas in WKY, hyperglycemia was very mild and serum IRI was not lowered. The number and mean size of pancreatic islets did not differ between SHR and WKY, although mean islet size was reduced by half in both compared with that in the corresponding control, respectively. Percentage distribution of insulin-positive B cells in the islet was significantly reduced more in SHR than in WKY (34% of control versus 64% of control, p less than 0.05). Furthermore, pancreatic IRI content was far more reduced in SHR than in WKY (3% of control versus 43% of control, p less than 0.001). In vehicle-treated groups, the glycemic levels and the morphometrical islets did not differ between SHR and WKY. However, serum IRI was significantly lower but pancreatic IRI content was higher in SHR than in WKY. The mechanisms of strain differences between SHR and WKY seen in the present study were discussed.

Animals↗
PubMed1989

[Silent stroke and advance in neuroimaging].

Silent stroke showed a yearly increase in our clinic with the advance of neuroimaging. Of the recent 33 cases of cerebrovascular disease, asymptomatic cerebral infarcts unrelated to the presenting stroke were detected in 20 cases (61%) by CT and in 28 (85%) by MRI, respectively. MRI also revealed asymptomatic hemorrhage in 7 (21%) and white matter lesions in 27 (82%). The clinical significance of silent stroke was discussed.

Brain↗
PubMed1989

Acute pancreatitis as a complication of Crohn's disease.

Two cases of Crohn's disease coincidental with acute pancreatitis are described. Both patients were diagnosed as suffering from acute pancreatitis by hyperamlasemia and ultrasonography. Both had received a previous diagnosis of Crohn's ileocolitis. Crohn's disease was active in one patient at the onset of pancreatitis but was inactive in the other. We saw no factor that was obviously responsible for the pancreatitis in these patients. We also review other cases of Crohn's disease accompanied with pancreatitis that have been reported previously in the literature. In six cases, no cause was established for the pancreatitis, other than the Crohn's disease itself. We assume that pancreatitis, although rare, may be one of the extra-intestinal complications of Crohn's disease.

Acute Disease↗
PubMed1989

[Disturbances of fluid and electrolyte balance in patients with acute stroke].

Serum sodium and potassium concentrations were measured in 196 patients with acute cerebral infarction and 56 with cerebral hemorrhage. All patients were admitted within 7 days of onset and the data within 2 weeks of admission were recorded. The incidences of hypernatremia (serum Na greater than or equal to 149 mEq/l), hyponatremia (less than or equal to 134 mEq/l), hyperkalemia (serum K greater than or equal to 4.8 mEq/l) and hypokalemia (less than or equal to 3.2 mEq/l) were higher in patients with hemorrhage (18, 7, 13 and 14%, respectively) than infarction (4.5, 4.5, 11 and 6%, respectively). The incidences of hypernatremia and hyponatremia in infarction were higher in those who had cortical lesions than in those who had lesions in the basal ganglia or infratentorium. In cerebral hemorrhage, the incidence of hypernatremia was the highest in those with brain stem lesion. Hypernatremia was found in 27% of large sized hematoma, being significantly higher than that of those with medium (16%) or small (1%) hematoma. A similar tendency was also observed in hyponatremia and hyperkalemia. In elderly patients, electrolyte disturbances were more common than in young or middle-aged patients. Renal insufficiency and diabetes mellitus were frequent complications in stroke patients with hypernatremia (42 and 32%, respectively), of which 57% died within one month of admission.

Acute Disease↗