An Accessory Right Hepatic and Cystic Arteries Derived from the Superior Mesenteric Artery: A Cadaveric Case Report.

BACKGROUND The configuration of the hepatic arteries is known to vary substantially between individuals. Here, we report a rare retroperitoneal configuration of an accessory hepatic artery existing alongside a left and right hepatic artery branching from the proper hepatic artery. During routine dissection, we discovered an anomalous configuration of the hepatic arteries that does not fit the commonly used categorizations for abnormal hepatic vasculature.

Torsional Deformity Significantly Impacts Lateral Ankle Radiographic Imaging Parameters.

Background Optimal lateral ankle imaging is important for the diagnosis and treatment of multiple ankle conditions. The effects of limb deformity on lateral ankle imaging are not well described and are clarified in this osteological study. Materials and methods We utilized an osteological collection and imaged all specimens after the first positioning of the talus in the lateral position and positioning the tibia and fibula to match.

The Reliability of the Modified Fels Knee Skeletal Maturity System.

Background: The recently described Modified Fels knee skeletal maturity system (mFels) has proven utility in prediction of ultimate lower extremity length in modern pediatric patients. mFels users evaluate chronological age, sex, and 7 anteroposterior knee radiographic parameters to produce a skeletal age estimate. We developed a free mobile application to minimize the learning curve of mFels radiographic parameter evaluation.

Seven-year Outcomes of Adolescent Forearm Fractures Treated With Plate Fixation.

Background: Pediatric forearm fractures are common injuries and can sometimes require surgical treatment. Few studies have evaluated the long-term outcomes of pediatric forearm fracture plating. We evaluated long-term functional outcomes and satisfaction in children with forearm fractures treated with plate fixation.

Marginal Fit and Retention Strength of Zirconia Crowns Cemented by Self-adhesive Resin Cements.

The absolute marginal gap (AMG) precementation and postcementation and the retention of zirconia crowns cemented to standardized molar preparations (4×10) by self-adhesive resin cements (SARCs) were evaluated. The following SARCs were used: RelyX U-200 (RXU200; 3M ESPE, Seefeld, Germany), SmartCem 2 (SC2; Dentsply, Milford, DE, USA), and G-Cem Automix (GCA; GC, Alsip, IL, USA). The control adhesive resin cement was Panavia 21 (PAN; Kuraray Dental Co Ltd, Osaka, Japan).

[Elastomeric impression materials].

Elastomeric impression materials are in common use. The impression taken should be highly precise, thus, requiring specific care when manipulatingthese materials. There are 4 groups of elastomers; polysulfide, condensation silicone, addition silicone and polyether; each differ in their setting mechanism and their physical and chemical properties.

Early adaptive responses of the vascular wall during venous arterialization in mice.

Venous arterialization occurs when a vein segment is transposed as a bypass graft into the arterial circulation, resulting in a structural and functional reorganization of the vascular wall in response to the new local biomechanical environment. Although the anatomical changes of venous arterialization have been well characterized, the molecular mechanisms of vascular remodeling remain incompletely understood. Here, we present a novel model of venous arterialization in mice wherein the external jugular vein is connected to the common carotid artery.

The relationship of alcohol outlet density to heavy and frequent drinking and drinking-related problems among college students at eight universities.

To determine whether alcohol outlet density was correlated with heavy and frequent drinking and drinking-related problems, we compared ecological measures of outlet density with survey measures of drinking using a geographic information system and the Harvard School of Public Health College Alcohol Study (n=3,421, site n=8). We identified 966 outlets within 8 2-mile study areas. Densities/site ranged from 32 to 185.

Adipose tissue mass can be regulated through the vasculature.

Tumor growth is angiogenesis dependent. We hypothesized that nonneoplastic tissue growth also depends on neovascularization. We chose adipose tissue as an experimental system because of its remodeling capacity.

Horizontal transfer of oncogenes by uptake of apoptotic bodies.

Tumor formation involves the accumulation of a series of genetic alterations that are required for malignant growth. In most malignancies, genetic changes can be observed at the chromosomal level as losses or gains of whole or large portions of chromosomes. Here we provide evidence that tumor DNA may be horizontally transferred by the uptake of apoptotic bodies.

Inhibition of endothelial cell proliferation by SPARC is mediated through a Ca(2+)-binding EF-hand sequence.

SPARC (secreted protein, acidic and rich in cysteine, also known as osteonectin and BM-40) is a metal-binding glycoprotein secreted by a variety of cultured cells and characteristic of tissues undergoing morphogenesis, remodeling, and repair. Recently it has been shown that SPARC inhibits the progression of the endothelial cell cycle in mid-G1, and that a synthetic peptide (amino acids 54-73 of secreted murine SPARC, peptide 2.1) from a cationic, disulfide-bonded region was in part responsible for the growth-suppressing activity [Funk and Sage (1991): Proc Natl Acad Sci USA 88:2648-2652].

Adenocarcinoma at the site of ureterosigmoidostomies for exstrophy of the bladder.

Adenocarcinoma of the colon is a rare complications of ureterosigmoidostomy done for exstrophy of the bladder. Only 13 cases have been previously reported, occurring from 10 to 46 yr after the procedure. In a series of 150 patients who have had ureterosigmoidostomies carried out at the Children's Hospital Medical Center, Boston, over the past 40 yr, 4 patients have been treated at our institution for this complication.