Abstract: An ultrasonic positioning method for real time measuring the distance between the epidural needle and the epidural space is provided. The ultrasonic positioning method at least includes a puncturing step; an advancing step; a positioning step for simultaneous detecting reflected ultrasonic signals from the ligamentum flavum (LF) and dura mater (DM); a replacement step for removing the ultrasound needle transducer and putting an injecting catheter; and an injection step for injecting an anesthetic into the epidural space via the injecting catheter.

Abstract: Novel compositions and methods for detecting and preventing and/or treating abnormal liver homeostasis and hepatocarcinoma as well as conditions that may be regulated by microRNA-122 are provided. A transgenic knockout non-human animal comprising a disruption in the endogenous mir-122 gene is also provided.

Abstract: The present disclosure provides novel compositions and therapeutics and their methods of use. In particular, it relates to novel compositions and therapeutics expressing the Cisd2 gene and increasing Cisd2 protein activity as well as methods of using the compositions and therapeutics for treating or preventing aging-associated conditions.

Abstract: An anastomosis system includes a base, two rings, and a blood vessel-leading unit. A first blood vessel can be inserted in and attached to the first ring by the blood vessel-leading unit. A second blood vessel can be inserted in and attached to the second ring by the blood vessel-leading unit. The first ring is placed on a ring-guiding base in a specific manner. The second ring is placed on the ring-guiding base in a movable and rotatable manner to assure the alignment of the blood vessels in both axial and angular directions. The two rings are interconnected by at least one snap-on mechanism or buckle so that the interconnection of the rings is efficient.