Mechanisms of acupuncture and herbal medicine in hypertension

Background: Acupuncture and herbal medicine have been of great benefit to Asian people for centuries. However, the discipline has not been subjected systematically and thoroughly to the rigors of scientific testing. Objective: This article reviews experimental evidence in regard to the vascular mechanisms of acupuncture and herbal medicine in hypertension. We focus on our hypothesis that acupuncture and herbal medicine reduce hypertension through activation of microvascular endothelial nitric oxide synthesis (eNOS). We also examine whether or not our results in experimental renovascular hypertension conform to the meridian theory. Results and conclusion: Acupuncture and herbal medicine 1) reduce experimental renovascular hypertension; 2) increase production of nitric oxide (NO), and contribute to vasodilation in the microvasculature and reduction of peripheral vascular resistance. We concluded that acupuncture and herbal medicine target eNOS and activate its signaling mechanisms, and that the benefits of acupuncture proceed along the meridian of the stimulated acupoint.

Benign tumors and tumor-like lesions of the calcaneum: A study of 12 cases.

Benign tumors of the calcaneum are rare. Cystic lesions such as simple bone cysts and aneurysmal bone cysts are commonly seen. Aims and Objectives: To evaluate tumors of the calcaneum, which were seen over a 12-year period. Materials and Methods: We analyzed noninfectious, noninflammatory, benign lesions of the calcaneum seen in the Orthopedic Out Patient Department from 1991 to 2003. Twelve such tumors were encountered. There were 11 males and one female and their ages varied from 18 to 53 years with a median of 31. Data was collected from the histopathology reports, radiographs, and inpatient and outpatient records. One of the coauthors reviewed the histopathologic findings of all the tumors. Results: Twelve benign lesions were seen in 12 patients. In our series, cysts predominated, with three aneurysmal bone cysts and five simple bone cysts. The other benign tumors were: one fibrous dysplasia, one vascular hamartoma, one osteoblastoma, and one chondromyxoid fibroma. The bone cysts were treated by curettage, with or without bone grafting, except for one large aneurysmal bone cyst, which was treated by excision of the calcaneum. The postoperative function in this patient was good, with modified footwear. Conclusion: The calcaneum is an uncommon site for most bone tumors, and in our series, bone cysts were the most common benign lesions. Curettage and bone grafting or the use of bone substitutes can be effectively used in the treatment of symptomatic bone cysts of the calcaneum.

Epithelioid haemangioma (benign haemangioendothelioma of bone)--a case report.

A case of epithelioid Haemangioma of the femur is presented. The patient, a 29 year old woman, was treated by curettage and bone grafting, following which two "recurrent" tumours appeared. These were successfully removed by repeat curettage.