Internal Carotid Artery Dissection Presenting as Partial Horner's Syndrome and Vertigo.

Distinguishing between central and peripheral causes of vertigo can be challenging not only in an acute setting but also in chronic settings. A thorough review of systems and physical exam can assist providers in differentiating central versus peripheral etiologies and the need for urgent imaging. In this case, a 47-year-old man presented with vertigo, right-sided hearing loss, right-sided headache, and right-sided facial pain that began 4 weeks before while the patient was on a cruise ship.

Military Medicine and the Academic Surgery Gender Gap.

Introduction: Gender disparity in academic medicine has been well described in the civilian sector. This has not yet been evaluated in the military health system where hundreds of female surgeons are practicing. Military service limits factors such as part time work and control over time spent away from family, which are often cited as contributors to the pay and promotion gap in civilian academic medicine.

Guided Imagery Improves Mood, Fatigue, and Quality of Life in Individuals With Multiple Sclerosis: An Exploratory Efficacy Trial of Healing Light Guided Imagery.

Multiple sclerosis is a disabling and progressive neurological disease that has significant negative effects on health-related quality of life. This exploratory efficacy study examined the effects of Healing Light Guided Imagery (HLGI), a novel variant of guided imagery, compared with a wait-list control in patients with relapsing-remitting multiple sclerosis. Changes in the Beck Depression Inventory, Fatigue Severity Scale, and Multiple Sclerosis Quality of Life instrument (physical and mental components) were compared between groups.

Reliability of a Standardized Nasal Anatomic Worksheet and Correlation With Subjective Nasal Airway Obstruction.

Importance: Nasal obstruction is a common chief concern; however, a comprehensive standardized worksheet for evaluating nasal obstruction has not been developed.

Objective: To evaluate the interrater reliability between staff surgeons and otolaryngology residents using a worksheet-based standardized nasal examination and to identify specific examination findings correlated with the Nasal Obstruction Symptom Evaluation quality-of-life score.

Design, Setting, And Participants: This cross-sectional study conducted from June to July 2012 involved 50 adults presenting to an otolaryngology clinic at a tertiary care hospital.

The Synthesis of Structurally Diverse Macrocycles By Successive Ring Expansion.

Structurally diverse macrocycles and medium-sized rings (9-24 membered scaffolds, 22 examples) can be generated through a telescoped acylation/ring-expansion sequence, leading to the insertion of linear fragments into cyclic β-ketoesters without performing a discrete macrocyclization step. The key β-ketoester motif is regenerated in the ring-expanded product, meaning that the same sequence of steps can then be repeated (in theory indefinitely) with other linear fragments, allowing macrocycles with precise substitution patterns to be "grown" from smaller rings using the successive ring-expansion (SuRE) method.

Nintendo Wii rehabilitation ("Wii-hab") provides benefits in Parkinson's disease.

Parkinson's disease (PD) impairs both activities of daily living (ADLs) and motor function and has adverse effects on mood in many patients. While dopaminergic medications are quite helpful for motor and ADLs impairments in PD, complementary therapies are also important in helping patients achieve maximum benefits and quality of life. We hypothesized that the Nintendo Wii (Wii) is a useful tool in improving motor and non-motor aspects in patients with PD, given its ability to drive functional movements and interactive nature.

Catalytic decarboxylative alkenylation of enolates.

A palladium-catalyzed decarboxylative alkenylation of stabilized enolates has been developed, which gives rise to alkenylated dicarbonyl products from enol carbonates regioselectively with concomitant installation of a quaternary all-carbon center. The broad scope of the reaction has been demonstrated by successfully utilizing a range of enolates and external phenol nucleophiles.

Epidermal cell proliferation in calorie-restricted aging rats.

Calorie restriction (CR) has been known to produce many beneficial health effects, and lowered cell proliferation from CR has been shown to produce anti-cancer effects in some tissues. In this study the rate of epidermal cell proliferation in aging Fischer 344 rats from ad libitum fed (AL) and CR colonies was assessed in relation to changes in epidermal thickness with age. Proliferating cell nuclear antigen (PCNA) was detected using immunohistochemical method on paraffin sections in the epidermis of dorsal skin and footpad in these animals obtained from the National Institute on Aging.

Partitioning of soil water among tree species in a Brazilian Cerrado ecosystem.

Source water used by woody perennials in a Brazilian savanna (Cerrado) was determined by comparing the stable hydrogen isotope composition (deltaD) of xylem sap and soil water at different depths during two consecutive dry seasons (1995 and 1996). Plant water status and rates of water use were also determined and compared with xylem water deltaD values. Overall, soil water deltaD decreased with increasing depth in the soil profile.

Regulation of water flux through trunks, branches, and leaves in trees of a lowland tropical forest.

We studied regulation of whole-tree water use in individuals of five diverse canopy tree species growing in a Panamanian seasonal forest. A construction crane equipped with a gondola was used to access the upper crowns and points along the branches and trunks of the study trees for making concurrent measurements of sap flow at the whole-tree and branch levels, and vapor phase conductances and water status at the leaf level. These measurements were integrated to assess physiological regulation of water use from the whole-tree to the single-leaf scale.