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KAZUMI NOGUCHI JUN-ICHI TERANISHI HIROJI UEMURA NAOYA FUJIKAWA KAZUO SAITO TETSUO MURAI 《International journal of urology》2006,13(9):1259-1261
Antiandrogen withdrawal syndrome (AWS) is a well-established phenomenon in prostate cancer. However, responses to AWS are usually of limited duration, and a complete response (CR) is extremely rare. We present two patients who exhibited a chemical CR for more than 2 years after the discontinuation of steroidal antiandrogen chlormadinone acetate use. Whether patients who respond to antiandrogen withdrawal include a group of patients with a better prognosis remains uncertain. However, considering that the usual survival period of patients with hormone-resistant prostate cancer is approximately 12 months, both of the patients reported here, who are present in excellent physical condition, exhibiting an improved quality of life, and attending their hospital as outpatients, obviously acquired a prolonged survival because of AWS. 相似文献
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Modulation of Fas-mediated apoptosis of human thyroid epithelial cells by IgG from patients with Graves' disease (GD) and idiopathic myxoedema 总被引:3,自引:0,他引:3
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A KAWAKAMI K EGUCHI N MATSUOKA M TSUBOI S URAYAMA Y KAWABE K TAHARA N ISHIKAWA K ITO S NAGATAKI 《Clinical and experimental immunology》1997,110(3):434-439
The expression of two autoimmune thyroid diseases, GD and idiopathic myxoedema, is associated with antibodies to the thyroid-stimulating hormone (TSH) receptor. Thyroid stimulating antibodies (TSAb) in GD are TSH agonists and cause hyperthyroidism as well as goitre, whereas thyroid stimulation blocking antibodies (TSBAb) in idiopathic myxoedema are TSH antagonists and cause hypothyroidism and thyroid atrophy. We investigated the effect of antibodies to TSH receptor on Fas-mediated apoptosis of thyroid epithelial cells (thyrocytes). Human IgG was isolated from healthy donors, patients with GD and idiopathic myxoedema. Human thyrocytes were obtained from surgical specimens. Thyrocytes were cultured in the presence or absence of human IgG with or without interferon-gamma (IFN-γ) or IL-1β for a specified time. After incubation, we examined the level of cAMP in cultured supernatants and both Fas and Bcl-2 expression on thyrocytes. In addition, we examined anti-Fas-mediated apoptosis of thyrocytes. Fas expression on thyrocytes was significantly down-regulated by Graves' IgG and TSH, although idiopathic myxoedema IgG did not affect Fas expression on thyrocytes. Idiopathic myxoedema IgG abrogated the effect of TSH on both cAMP production and inhibition of Fas expression on thyrocytes. Treatment of thyrocytes with IL-1β or IFN-γ caused a marked augmentation of Fas expression on thyrocytes. The increase of Fas expression of thyrocytes induced by IL-1β or IFN-γ was significantly suppressed in the presence of TSH or Graves' IgG. Anti-Fas-induced apoptosis of thyrocytes was observed in thyrocytes treated with IL-1β or IFN-γ, but was markedly inhibited in the presence of TSH or Graves' IgG. Furthermore, idiopathic myxoedema IgG abrogated most of the inhibitory effect of TSH on Fas-mediated apoptosis of thyrocytes treated with IL-1β or IFN-γ. Bcl-2 expression of thyrocytes did not change after stimulation with TSH, Graves' IgG, idiopathic myxoedema IgG, IL-1β or IFN-γ. These results suggest that TSAb found in Graves' patients may be potentially involved in the development of goitre by inhibition of Fas-mediated apoptosis of thyrocytes. In addition, TSBAb inhibit the action of TSH and increase the sensitivity toward Fas-mediated apoptosis of thyrocytes, inducing thyroid atrophy seen in patients with idiopathic myxoedema. 相似文献
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Time‐Dependent Changes in QT Dynamics after Initiation and Termination of Paroxysmal Atrial Fibrillation
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IZAURA Y. HIRATA PAULO BOSCHCOV MARIA C.F. OLIVEIRA MARIA APARECIDA JULIANO ANTONIO MIRANDA JAIR R. CHAGAS SATOSHI TSUBOI YOSHIO OKADA LUIZ JULIANO 《Chemical biology & drug design》1991,38(4):298-307
The N-terminal heptadecapeptide of human angiotensinogen (Asp-Arg-Val-Tyr-Ile-His-Pro-Phe-His-Leu-Val-Ile-His-Asn-Glu-Ser-Thr-NH2), with the C-terminal carboxyl group amidated, was synthesized in order to study the role of Asn-Glu-Ser, a putative carbohydrate binding site, on the hydrolysis by human renin. The synthesis was performed by fragment condensation using the Honzl and Rudinger azide procedure. In our conditions for azide segment condensation, histidine racemization was demonstrated to be negligible for most of the condensation reactions. Human renin liberates angiotensin I from h-angiotensinogen (1-17)-NH2 with a Km value of 3.4 × 10?5m , at pH 7.3 and 37° being similar to h-angiotensinogen (1-13), an analog without the carbohydrate binding site. However, the Vmax value of 4.1 × 10?9mol/G.U. min is one order of magnitude higher. Porcine pepsin was demonstrated to cleave preferentially Leu10-Val11 bond and, surprisingly, His9-Leu10 as well. 相似文献
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Yuka MATSUMOTO Tsunao OH-I Ayako NAGAI Fuminori OHYAMA Tsuyoshi OOISHI Ryoji TSUBOI 《The Journal of dermatology》2009,36(2):98-102
We report a case of cutaneous infection due to Scedosporium apiospermum in a 75-year-old immunocompromised male patient who had received long-term corticosteroid and immunosuppressant therapy for the treatment of nephrotic syndrome. The patient came to our department complaining of erythema with a number of pustules on the dorsal surface of the right hand. S. apiospermum was identified from a culture taken from the pus. After unsuccessful treatment with topical ketoconazole, oral itraconazole and oral terbinafine, the lesion quickly resolved with the daily administration of 400 mg voriconazole. No recurrence was observed despite discontinuation of voriconazole due to drug-induced hepatitis. Voriconazole holds out the promise of an effective treatment for invasive Scedosporium infection. 相似文献
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We report a case of Behcet's disease aggravated by gingivitis and carious teeth infected with methicillin-resistant Staphylococcus aureus. Recurrent severe ulcers in the mouth, and on the genitalia and legs were closely linked with the infection, and dramatically improved after extraction of the carious teeth and administration of systemic vancomycin hydrochloride. 相似文献
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