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1.
Endocr J ; 61(6): 589-95, 2014.
Article in English | MEDLINE | ID: mdl-24705560

ABSTRACT

A 67-year-old female with hypertension and impaired glucose tolerance was admitted to our hospital because of a typical acromegalic appearance, including large, thickened bulky hands and feet, and a large prominent forehead and tongue. She did not have a Cushingoid appearance, such as a moon-face, buffalo hump, purple striae or central obesity. The laboratory data revealed a serum GH level of 4.6 ng/mL and serum insulin-like growth factor-1 level of 811 ng/mL. The oral glucose tolerance test showed no suppression of the GH values. An endocrine examination showed a lack of circadian rhythmicity of ACTH and cortisol. Cortisol was not suppressed by a low dose of dexamethasone during the suppression test, but was suppressed by a high dose of dexamethasone. A radiological study revealed two isolated adenomas in the pituitary and a left adrenal tumor. These findings strongly suggested a diagnosis of acromegaly with subclinical Cushing's disease and a left adrenal incidentaloma. Transsphenoidal surgery was performed. Hematoxylin and eosin staining showed that the left and right pituitary adenomas were composed of basophilic and acidophilic cells, respectively. Immunohistochemical staining showed the left adenoma to be positive for ACTH and negative for GH. In contrast, the right adenoma was GH-positive and ACTH-negative. This is a rare case of independent double pituitary adenomas with distinct hormonal features. We also provide a review of the previously reported cases of double pituitary adenomas and discuss the etiology of these tumors.


Subject(s)
ACTH-Secreting Pituitary Adenoma/complications , Acromegaly/complications , Adenoma/complications , Adrenal Gland Neoplasms/complications , Growth Hormone-Secreting Pituitary Adenoma/complications , Pituitary ACTH Hypersecretion/complications , ACTH-Secreting Pituitary Adenoma/diagnosis , Acromegaly/diagnosis , Adenoma/diagnosis , Adrenal Gland Neoplasms/diagnosis , Aged , Asymptomatic Diseases , Female , Growth Hormone-Secreting Pituitary Adenoma/diagnosis , Humans , Pituitary ACTH Hypersecretion/diagnosis
2.
J Clin Med Res ; 6(2): 127-32, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24578754

ABSTRACT

BACKGROUND: We examined the effects of combination therapy with 50 mg/day of sitagliptin and low-dose glimepiride (1 mg/day) in patients with type 2 diabetes. METHODS: Twenty-six patients with poorly controlled type 2 diabetes currently taking high-dose glimepiride (≥ 2 mg/day) were enrolled in the study. The dose of glimepiride was reduced to 1 mg/day and 50 mg/day of sitagliptin was added without changing the doses of any other antihyperglycemic agents. The patients were divided into two groups: the low-dose group (2 or 3 mg glimepiride decreased to 1 mg: n = 15) and the high-dose group (4 or 6 mg glimepiride decreased to 1 mg: n = 11). RESULTS: Combination therapy significantly lowered HbA1c after 24 weeks of treatment in both groups. In the low-dose group, 8.1 ± 0.2% decreased to 7.0 ± 0.1%; in the high-dose group, 8.4 ± 0.1% decreased to 7.3 ± 0.2%. The time course of the degree of HbA1c reduction in the high-dose group was almost superimposable on that in the low-dose group. There were no changes in body weight and no hypoglycemia and in either group during the study period. In conclusion, our results suggested that the combination therapy used in the study is both well tolerated and effective. CONCLUSION: This study indicated the usefulness of dipeptidyl peptidase (DPP)-4 inhibitors in Japanese patients with type 2 diabetes, and also reinforces the importance of low doses of sulfonylurea for effective glycemic management.

3.
Intern Med ; 43(9): 807-10, 2004 Sep.
Article in English | MEDLINE | ID: mdl-15497515

ABSTRACT

In most cases of hepatitis E in Japan, patients acquire the viral infection abroad in countries where hepatitis E is endemic. However, in Nagano Prefecture, Japan, we encountered a patient with hepatitis E who had never been abroad. The diagnosis was made on finding hepatitis E viral RNA and antibodies against the virus in the serum. Prompt normalization of liver function test occurred without medication. The nucleotide sequence of the virus isolated from this patient was closely related to the sequence of previously isolated viruses of genotype III. The source of infection could not be identified.


Subject(s)
Hepatitis E/epidemiology , Acute Disease , Antibodies, Viral/analysis , Hepatitis E virus/classification , Hepatitis E virus/immunology , Hepatitis E virus/isolation & purification , Humans , Japan/epidemiology , Male , Middle Aged , RNA, Viral/analysis
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