Brief Oil Exposure Reduces Fitness in Wild Gulf of Mexico Mahi-Mahi (Coryphaena hippurus).

The Deepwater Horizon (DWH) disaster released 3.19 million barrels of crude oil into the Gulf of Mexico (GOM) in 2010, overlapping the habitat of pelagic fish populations. Using mahi-mahi (Coryphaena hippurus)─a highly migratory marine teleost present in the GOM during the spill─as a model species, laboratory experiments demonstrate injuries to physiology and behavior following oil exposure. However, more than a decade postspill, impacts on wild populations remain unknown. To address this gap, we exposed wild mahi-mahi to crude oil or control conditions onboard a research vessel, collected fin clip samples, and tagged them with electronic tags prior to release into the GOM. We demonstrate profound effects on survival and reproduction in the wild. In addition to significant changes in gene expression profiles and predation mortality, we documented altered acceleration and habitat use in the first 8 days oil-exposed individuals were at liberty as well as a cessation of apparent spawning activity for at least 37 days. These data reveal that even a brief and low-dose exposure to crude oil impairs fitness in wild mahi-mahi. These findings offer new perspectives on the lasting impacts of the DWH blowout and provide insight about the impacts of future deep-sea oil spills.

Ottawa Panel evidence-based clinical practice guidelines on therapeutic massage for low back pain.

OBJECTIVE: To update evidence-based clinical practice guidelines (EBCPG) on massage therapy compared to control or other treatment for adults (>18 years) suffering from acute, sub-acute and chronic low back pain (LBP). METHODS: A literature search was performed for relevant articles between January 1, 1948 and December 31, 2010. Eligibility criteria were then applied focussing on participants, interventions, controls, and outcomes, as well as methodological quality. Recommendations based on this evidence were then assigned a grade (A, B, C, C+, D, D+, D-) based on their strength. RESULTS: A total of 100 recommendations were formulated from 11 eligible articles, including 37 positive recommendations (25 grade A and 12 grade C+) and 63 neutral recommendations (49 grade C, 12 grade D, and 2 grade D+). DISCUSSION: These guidelines indicate that massage therapy is effective at providing pain relief and improving functional status. CONCLUSION: The Ottawa Panel was able to demonstrate that massage interventions are effective to provide short term improvement of sub-acute and chronic LBP symptoms and decreasing disability at immediate post treatment and short term relief when massage therapy is combined with therapeutic exercise and education.

Ottawa Panel evidence-based clinical practice guidelines on therapeutic massage for neck pain.

OBJECTIVE: To update evidence-based clinical practice guideline (EBCPG) on the use of massage compared to a control or other treatments for adults (>18 years) suffering from sub-acute and chronic neck pain. METHODS: A literature search was performed from January 1, 1948 to December 31, 2010 for relevant articles. The Ottawa Panel created inclusion criteria focusing on high methodological quality and grading methods. Recommendations were assigned a grade (A, B, C, C+, D, D+, D-) based on strength of evidence. RESULTS: A total of 45 recommendations from ten articles were developed including 8 positive recommendations (6 grade A and 2 grade C+) and 23 neutral recommendations (12 grade C and 11 grade D). DISCUSSION: Therapeutic massage can decrease pain, tenderness, and improve range of motion for sub-acute and chronic neck pain. CONCLUSION: The Ottawa Panel was able to demonstrate that the massage interventions are effective for relieving immediate post-treatment neck pain symptoms, but data is insufficient for long-term effects.