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51.
Hepatitis B virus (HBV) continues to be a serious worldwide health problem despite the use of protective HBV vaccines and therapeutic regimens against chronic HBV infection. Chronic HBV patients cannot induce sufficient immune responses against the virus. HBV and its antigens are believed to suppress immune responses during chronic infection. Hence, studying the role of HBV in immune suppression is very important for the development of alternative therapeutic strategies for HBV infections.  相似文献   
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As there is still a shortage of pediatric donor hearts, several techniques have been used to assist pediatric patients to survive until transplantation. VADs provide long‐term support and ability of mobilization for children before a suitable heart becomes available. Several devices such as paracorporeal pumps have been used for this purpose, with acceptable morbidity and mortality rates. However, discharge is not possible, as there is no mobile drive unit for these small‐sized pumps. The possible negative psychosocial impact of long‐term hospitalization, away from home and school, may cause some adjustment problems in the future. In this case series, three pediatric patients that underwent intracorporeal LVAD implantation and returned to school are presented to share clinical experience and also to attract attention to the potential social and psychiatric implications.  相似文献   
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Background/Objective: To report manifestation of autonomic dysreflexia (AD) in a man with multiple sclerosis (MS).

Design: Case report.

Findings: A young man presented with a history of several admissions to the emergency department with complaints of hypertensive attacks, palpitations, difficulty in breathing, headaches, and flushing. The attacks were attributed to a previously diagnosed anxiety disorder. Onset of numbness of the left leg numbness prompted a more thorough study, which showed evidence of MS. AD was suspected as the cause of his recurrent attacks of hypertension. Bladder distension was identified as the cause of AD, and his hypertensive attacks were controlled by management of neurogenic bladder.

Conclusions: This report emphasizes that AD can occur in MS. Somatic symptoms warrant thorough investigation before attributing them to psychosomatic causes.  相似文献   
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Autoimmune estrogen dermatitis is a cyclical cutaneous eruption that occurs premenstrually and goes to the rapid resolution within a few days of menstrual cycles. The disorder has variable clinical manifestations consisting of macules, papules, vesicles, urticarial lesions, bullae, eczematous plaques, and erythema multiforme-like lesions. Herein, we present a case of a 30-year-old woman with attacks of edema and erosions involving the oral and genital mucosal sites on every first day of her menstruation period. She had also multiple endocrinological problems such as hypotroidism and infertility. To determine the sex hormon sensitivity, intradermal skin tests were performed. Based on her personal history and skin test findings, a diagnosis of autoimmune estrogen dermatitis was made. After the oophorectomy, she was free from the skin and mucosal symptoms. We propose that it is important to suspect the diagnosis of autoimmune estrogen dermatitis in patients who present with recurrent cylic eruptions and it must be kept in mind that these patients might have a concomitant infertility.  相似文献   
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Thrombosis is a rare cause of superior vena cava syndrome (SVCS). A 43-year-old male patient with SVCS due to thrombosis underwent investigation for the etiology of thrombus formation. He had been hospitalized several times because of lead intoxication in the past. Lead has a known thrombogenetic effect experimentally. This patient with superior vena cava thrombosis had thrombophilia that was probably due to lead intoxication. The etiologies of venous thrombosis and thrombogenetic effect of chronic lead exposure are discussed.  相似文献   
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Fibrosing mediastinitis is caused by a proliferation of fibrous tissue in the mediastinum with encasement of mediastinal viscera and compression of mediastinal bronchovascular structures. Pulmonary hypertension (PH) may occur as a severe complication of the disease. Herein, we report a patient diagnosed with fibrosing mediastinitis and pulmonary hypertension, whose imaging tests showed obstruction of right pulmonary artery and veins.  相似文献   
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