Upper gastrointestinal bleeding from a Mallory-Weiss tear associated with transesophageal echocardiography during successful cardiopulmonary resuscitation: A case report.

Background: In recent years, it has been recognized that transesophageal echocardiography (TEE) is of great value in resuscitation of cardiac arrest. However, its safety has rarely been reported.

Case Summary: We present a 59-year-old male patient scheduled to undergo cardiac surgery for rheumatic heart disease.

[The Role of Bone Morphogenic Protein-4 in the Progression of Vein Graft Hyperplastic Remodeling under Hyperglycemic Condition].

Objective: This study was designed to assess the vessel wall characteristics and the expression levels of bone morphogenic protein4(BMP4) and proliferating cell antigen Ki67 in vein grafts harvested from diabetic rats,and to investigate the role of BMP4 in progression of vein graft hyperplastic remodeling under hyperglycemic condition.

Methods: 48 male SpragueDawky rats [body mass (194±16) g] aged 8 weeks were randomly divided into diabetes mellitus (DM) group ( =24) and nondiabetes mellitus (NDM) group ( =24). The DM rats were induced by streptozotocin in combination with highsugar and highfat diet.

17β-estradiol regulates cell proliferation, colony formation, migration, invasion and promotes apoptosis by upregulating miR-9 and thus degrades MALAT-1 in osteosarcoma cell MG-63 in an estrogen receptor-independent manner.

In bone, different concentration of estrogen leads to various of physiological processes in osteoblast, such as the proliferation, migration, and apoptosis in an estrogen receptor-dependent manner. But little was known about the estrogen effects on osteosarcoma (OS). In this study, OS cell MG-63 was treated with low (1 nM) or high (100 nM) dose of 17β-Estradiol (E2) with the presence or absence of estrogen receptor α (ERα), for evaluating the E2 effects on proliferation, migration, invasion, colony formation and apoptosis.

Preliminary report on use of 3-dimensional computed tomographic images in a disease-based transesophageal echocardiographic simulation system.

We used 3-dimensional computed tomographic images to create a disease-based transesophageal echocardiographic simulation system for complex congenital heart defects. We enrolled 7 pediatric patients with complex congenital heart defects in this proof-of-concept study. Preoperative computed tomographic images and intraoperative transesophageal echocardiographic images were acquired for all patients.

[The effects of prolonged sevoflurane anesthesia on renal function in liver fibrosis rabbits].

Objective: To determine the effects of prolonged sevoflurane anesthesia on renal function in liver fibrosis rabbits.

Methods: Fifty male new zealand rabbits were randomly divided into two groups: fibrosis group (n = 40) and normal control group (Group N, n = 10). In the fibrosis group, experimental liver fibrosis was induced by subcutaneous injection of carbon tetrachloride (CCl4 soluted in oil with the concentration of 500 mL/L).