PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

No detectable association between frequency of marijuana use and health or healthcare utilization

2013-09-24
(Press-News.org) (Boston)--Researchers from Boston Medical Center (BMC) and Boston University School of Medicine (BUSM) have found frequency of marijuana use was not significantly associated with health services utilization or health status. These findings currently appear online in the Journal of General Internal Medicine.

As marijuana's legal status changes across the US, its impact on health has become of great interest. Marijuana is the most commonly used illicit drug, yet its impact on health and healthcare utilization has not been studied extensively.

The researchers studied 589 adults who screened positive for drug use at a primary care visit. Those patients were asked about their drug use, their emergency room use and hospitalizations, and their overall health status. In addition, information about other medical diagnoses was obtained from their medical records. They found the vast majority of the study sample (84 percent) used marijuana, 25 percent used cocaine, 23 percent opioids and eight percent used other drugs; 58 percent reported using marijuana but no other drugs. They also found no differences between daily marijuana users and those using no marijuana in their use of the emergency room, in hospitalizations, medical diagnoses or their health status.

According to the researchers it is common for users of illicit drugs to use both marijuana and another drug; therefore, knowing the incremental effects of marijuana on health in that circumstance is important.

"Even though we could not compare marijuana users to those who used no drugs at all, our findings suggest that marijuana use has little measurable effect on self-reported health or healthcare utilization in adults using drugs identified in a primary care clinic," said lead author Daniel Fuster, MD, a postdoctoral scholar from the Clinical Addiction Research and Education Unit at BMC and BUSM.

### END


ELSE PRESS RELEASES FROM THIS DATE:

Pesticide regulation in California is flawed, UCLA report says

2013-09-24
Approximately 30 million pounds of fumigant pesticides are used each year on soil that yields valuable California crops— strawberries, tomatoes, peppers and the like — in an attempt to control pests. Responsibility for the safety of pesticides must be evaluated and approved by the California Department of Pesticide Regulation in a process known as registration. A new report issued by UCLA's Sustainable Technology and Policy Program, a joint program of the Fielding School of Public Health and the School of Law, shows that in at least one case, the system failed by approving ...

Protecting specific area of the brain during radiation therapy substantially reduces memory loss

2013-09-24
ATLANTA – Sept. 23, 2013. Protecting the stem cells that reside in and around the hippocampus – a C-shaped area in the temporal lobe on both sides of the brain associated with the ability to form and store memories – substantially reduces the rate of cancer patients' memory loss during whole-brain radiotherapy without a significant risk of recurrence in that area of the brain, a new study shows. Results of the Phase II clinical trial of patients with brain metastases are being presented today at the American Society for Radiation Oncology (ASTRO) annual meeting. "Memory ...

Johns Hopkins researchers erase human brain tumor cells in mice

2013-09-24
Working with mice, Johns Hopkins researchers have discovered that weeks of treatment with a repurposed FDA-approved drug halted the growth of — and ultimately left no detectable trace of — brain tumor cells taken from adult human patients. The scientists targeted a mutation in the IDH1 gene first identified in human brain tumors called gliomas by a team of Johns Hopkins cancer researchers in 2008. This mutation was found in 70 to 80 percent of lower-grade and progressive forms of the brain cancer. The change occurs within a single spot along a string of thousands of genetic ...

Modifying rice crops to resist herbicide prompts weedy neighbors' growth spurt

2013-09-24
COLUMBUS, Ohio – Rice containing an overactive gene that makes it resistant to a common herbicide can pass that genetic trait to weedy rice, prompting powerful growth even without a weed-killer to trigger the modification benefit, new research shows. Previously, scientists have found that when a genetically modified trait passes from a crop plant to a closely related weed, the weed gains the crop's engineered benefit – resistance to pests, for example – only in the presence of the offending insects. This new study is a surprising example of gene flow from crops to ...

Baylor professors use whale earwax to develop new method to determine contaminant exposure in whales

2013-09-24
WACO, Texas (Sept. 23, 2013) — Baylor University professors Stephen Trumble, Ph.D., and Sascha Usenko, Ph.D., have developed a novel technique for reconstructing contaminant and hormone profiles using whale earplugs, determining—for the first time—lifetime chemical exposures and hormone profiles—from birth to death—for an individual whale, information that was previously unattainable. (Find this story on our website: http://www.baylor.edu/mediacommunications/news.php?action=story&story=132825) Using a blue whale's earplug, Trumble and Usenko were able to extract and ...

Fossil record shows crustaceans vulnerable as modern coral reefs decline

2013-09-24
GAINESVILLE, Fla. — Many ancient crustaceans went extinct following a massive collapse of reefs across the planet, and new University of Florida research suggests modern species living in rapidly declining reef habitats may now be at risk. Available online and scheduled to appear in the November issue of Geology, the study shows a direct correlation between the amount of prehistoric reefs and the number of decapod crustaceans, a group that includes shrimp, crab and lobster. The decline of modern reefs due to natural and human-influenced changes also could be detrimental, ...

Stanford scientists publish theory, formula to improve 'plastic' semiconductors

2013-09-24
Anyone who's stuffed a smart phone in their back pocket would appreciate the convenience of electronic devices that could bend. Flexible electronics could spawn new products: clothing wired to cool or heat, reading tablets that could fold like newspaper, and so on. Alas, electronic components such as chips, displays and wires are generally made from metals and inorganic semiconductors -- materials with physical properties that make them fairly stiff and brittle. In the quest for flexibility many researchers have been experimenting with semiconductors made from plastics ...

Data from across globe defines distinct Kawasaki disease season

2013-09-24
After more than four decades of research, strong evidence now shows that Kawasaki disease has a distinct seasonal occurrence shared by regions across the Northern hemisphere. The first global analysis of the seasonality of Kawasaki disease, published September 18 by PLOS ONE, was carried out using data obtained between 1970 and 2012. It included 296,203 cases from 39 locations in 25 countries around the globe, with 27 of those locations in the extra-tropical Northern hemisphere, eight in the tropics, and four in the extra-tropical Southern hemisphere. Kawasaki disease ...

UCSB researchers make headway in quantum information transfer via nanomechanical coupling

2013-09-24
(Santa Barbara, Calif.) –– Fiber optics has made communication faster than ever, but the next step involves a quantum leap –– literally. In order to improve the security of the transfer of information, scientists are working on how to translate electrical quantum states to optical quantum states in a way that would enable ultrafast, quantum-encrypted communications. A UC Santa Barbara research team has demonstrated the first and arguably most challenging step in the process. The paper, published in Nature Physics, describes a nanomechanical transducer that provides strong ...

Preoperative blood typing may not be needed for some pediatric surgeries

2013-09-24
Certain pediatric surgeries carry such low risk of serious blood loss that clinicians can safely forgo expensive blood typing and blood stocking before such procedures, suggest the results of a small study by researchers at the Johns Hopkins Children's Center. The finding, published ahead of print in the journal Pediatric Anesthesia, was accompanied by a list of 10 operations with "zero" transfusion risk, according to the investigators who reviewed the records of thousands of pediatric surgeries performed at The Johns Hopkins Hospital over 13 months. Unnecessary pre-emptive ...

LAST 30 PRESS RELEASES:

Scientists trace origins of now extinct plant population from volcanically active Nishinoshima

AI algorithm based on routine mammogram + age can predict women’s major cardiovascular disease risk

New hurdle seen to prostate screening: primary-care docs

MSU researchers explore how virtual sports aid mental health

Working together, cells extend their senses

Cheese fungi help unlock secrets of evolution

Researchers find brain region that fuels compulsive drinking

Mental health effects of exposure to firearm violence persist long after direct exposure

Research identifies immune response that controls Oropouche infection and prevents neurological damage

University of Cincinnati, Kent State University awarded $3M by NSF to share research resources

Ancient DNA reveals deeply complex Mastodon family and repeated migrations driven by climate change

Measuring the quantum W state

Researchers find a way to use antibodies to direct T cells to kill Cytomegalovirus-infected cells

Engineers create mini microscope for real-time brain imaging

Funding for training and research in biological complexity

The Journal of Nuclear Medicine Ahead-of-Print Tip Sheet: September 12, 2025

ISSCR statement on the scientific and therapeutic value of human fetal tissue research

Novel PET tracer detects synaptic changes in spinal cord and brain after spinal cord injury

Wiley advances Knowitall Solutions with new trendfinder application for user-friendly chemometric analysis and additional enhancements to analytical workflows

Benchmark study tracks trends in dog behavior

OpenAI, DeepSeek, and Google vary widely in identifying hate speech

Research spotlight: Study identifies a surprising new treatment target for chronic limb threatening ischemia

Childhood loneliness and cognitive decline and dementia risk in middle-aged and older adults

Parental diseases of despair and suicidal events in their children

Acupuncture for chronic low back pain in older adults

Acupuncture treatment improves disabling effects of chronic low back pain in older adults

How interstellar objects similar to 3I/ATLAS could jump-start planet formation around infant stars

Rented e-bicycles more dangerous than e-scooters in cities

Ditches as waterways: Managing ‘ditch-scapes’ to strengthen communities and the environment

In-situ molecular passivation enables pure-blue perovskite LEDs via vacuum thermal evaporation

[Press-News.org] No detectable association between frequency of marijuana use and health or healthcare utilization