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61.
Inferior alveolar nerve injury: Correlation between indicators of risk on panoramic radiographs and the incidence of tooth and mandibular canal contact on cone‐beam computed tomography scans in a Western Australian population 下载免费PDF全文
62.
Nan Xiao Yuan Lin Hongbin Cao Davud Sirjani Amato J. Giaccia Albert C. Koong Christina S. Kong Maximilian Diehn Quynh-Thu Le 《The Journal of clinical investigation》2014,124(8):3364-3377
Stem cell–based regenerative therapy is a promising treatment for head and neck cancer patients that suffer from chronic dry mouth (xerostomia) due to salivary gland injury from radiation therapy. Current xerostomia therapies only provide temporary symptom relief, while permanent restoration of salivary function is not currently feasible. Here, we identified and characterized a stem cell population from adult murine submandibular glands. Of the different cells isolated from the submandibular gland, this specific population, Lin–CD24+c-Kit+Sca1+, possessed the highest capacity for proliferation, self renewal, and differentiation during serial passage in vitro. Serial transplantations of this stem cell population into the submandibular gland of irradiated mice successfully restored saliva secretion and increased the number of functional acini. Gene-expression analysis revealed that glial cell line–derived neurotrophic factor (Gdnf) is highly expressed in Lin–CD24+c-Kit+Sca1+ stem cells. Furthermore, GDNF expression was upregulated upon radiation therapy in submandibular glands of both mice and humans. Administration of GDNF improved saliva production and enriched the number of functional acini in submandibular glands of irradiated animals and enhanced salisphere formation in cultured salivary stem cells, but did not accelerate growth of head and neck cancer cells. These data indicate that modulation of the GDNF pathway may have potential therapeutic benefit for management of radiation-induced xerostomia. 相似文献
63.
Deposition of autofluorescent eosinophil granules in pathologic bone marrow biopsies 总被引:2,自引:0,他引:2
Eosinophil granules are intensely autofluorescent when excited by green light. To determine if eosinophils degranulate in the bone marrows of patients with a variety of diseases, we used green light epifluorescence microscopy to examine deparaffinized and dezenkerized sections of 49 bone marrow core biopsies. In 14 of the biopsies, there was striking extracellular deposition of intensely autofluorescent eosinophil granules in addition to numerous intact eosinophils. Among the 14 specimens with extracellular autofluorescence were seven cases of leukemia, four cases of non-Hodgkin's lymphoma, two cases of myelofibrosis, and one case of pancytopenia with eosinophilia. In the remaining 35 specimens, only intact eosinophils were identifiable. There was no extracellular autofluorescence in three normal marrows, four marrows from AIDS patients, or three biopsies from patients with idiopathic thrombocytopenic purpura (ITP). We conclude that green light epifluorescence microscopy identifies extracellular deposits of eosinophil granules in bone marrow biopsies of some neoplastic disorders and in diseases associated with reticulin fibrosis. 相似文献
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Primary biliary carcinoma: CT evaluation 总被引:19,自引:0,他引:19
66.
Widrich WC; Beckman CF; Robbins AH; Scholz FJ; Srinivasan MK; Hayes EJ; Kellum CD; Newman T 《Radiology》1983,148(1):61-64
Iopamidol was compared with Renografin-60 (meglumine diatrizoate, Squibb) in a controlled, randomized double-blind study of 40 patients undergoing peripheral arteriography for arteriosclerotic occlusive disease to determine which agent caused less discomfort. Each patient was evaluated for objective signs of discomfort and subjective feelings of pain and heat. Monitoring was achieved by multiple physical examinations, chemical tests, electrocardiograms, and intra-arterial pressure recordings. It is concluded that iopamidol is safe and causes significantly less patient discomfort than Renografin-60. 相似文献
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Thirty one patients were investigated for the main complaint of easy bruising. These patients had normal platelet count with no past history of immune thrombocytopenia or systemic disorders known to predispose to bruising and a negative drug history. The evaluation of these patients included clinical review (history and physical examination) plus coagulation tests consisting of bleeding time, prothrombin time, partial thromboplastin time, thrombin time, fibrinogen level, FXIII screen and platelet functions test. Seven of the paediatric patients had acquired platelet dysfunction with eosinophilia (APDE). In 17 (94.4%) of the 18 adult patients no abnormality was demonstrated. Hence APDE was the commonest cause of easy bruising in children while the haemostatic defect contributing to easy bruising in adults remained unknown. 相似文献
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