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| Lexington Herald-Leader graph by John Cheves; click to enlarge |
Thursday, July 20, 2023
State, far behind on nursing-home inspections, focuses on responding to complaints, but that often takes too long
Wednesday, July 19, 2023
Mosquito repellents tested: DEET is best; plant-based alternatives to it work fine in lower-risk areas if they are reapplied as needed
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| For a larger version of this graph, click on it. To download and save, right-click. |
Now that summer is in full swing, mosquitoes have come out across the United States. The use of mosquito repellents can protect both your health and sanity this summer.
While mosquitoes leave bothersome, itchy bites on your skin, they can also pose a serious and sometimes deadly risk to your health. When a mosquito bites you, it may transmit harmful pathogens that cause dangerous diseases like malaria, Dengue fever, Zika and West Nile.
Avoiding mosquito bites
Mosquito females bite people to get vital nutrients from our blood. They then use these nutrients to make their eggs. One single blood meal can give rise to about 100 mosquito eggs that hatch into wiggling larvae.
However, one of the best ways to protect yourself when you’re going to a place where hungry mosquitoes will be buzzing around is by using mosquito repellents.
Our team at the New Mexico State University Molecular Vector Physiology Laboratory has studied different types of mosquito repellents and their efficacy for over a decade. Here’s what you need to know to protect yourself this summer:
All about repellents
The use of mosquito repellents goes far back in history, certainly predating written historical accounts. Some of the oldest records of the use of mosquito repellents date back to early Egyptian and Roman history. During this period, smoke from smudge fires was often used to repel mosquitoes.
Today, we have more options than our ancestors when it comes to choosing what type of mosquito repellent to use – sprays and lotions, candles, coils and vaporizers, to name some.
These repellents interfere with a mosquito’s sense of smell, taste or both. The repellent either blocks or overstimulates these senses. Scientists understand how certain repellents like DEET work at the molecular level, but for many of them, it is still unknown why exactly they repel mosquitoes.
Testing repellents
We used a variety of scientific laboratory experiments and field tests to find out what works. For some products, testing was as simple as putting a volunteer’s treated arm into a cage with 25 mosquitoes and waiting for the first mosquito bite.
For others, like citronella candles, we used a slow-speed wind tunnel and put a candle or device between a person and a cage of mosquitoes. Depending on the repellent efficacy of the device, mosquitoes either flew toward the person or away. Another experiment we conducted was the Y-tube choice assay where mosquitoes chose to fly toward someone’s hand or, if repelled, fly toward the blank or empty option.
Bracelets don’t work. Department stores and pharmacy chains sell hundreds of different varieties of bracelets. They are marketed as “mosquito repellent” bands, wristbands and watches, and their materials can vary from plastic to leather. Even if they are loaded with repellents, they can’t protect your whole body from mosquito bites.
Ultrasonic repellent devices don’t work. These come as electrical plug-ins, free-standing varieties or watchlike accessories that claim to emit a high-frequency sound that deters mosquitoes by mimicking bats. However, in scientific studies, ultrasonic repellent devices fail to repel mosquitoes. In fact, when our lab tested one of these devices, we found a slight increase in mosquito attraction to the wearer.
Dietary supplements – vitamin B, garlic and so on – don’t work. No scientific evidence shows these supplements protect people from mosquito bites.
Light-based repellents don’t work. These devices come as colored light bulbs, and they don’t attract insects that fly toward white light. This approach works well on moths, beetles and stinkbugs, but not on mosquitoes.
Mosquito repellents that work
And here is our ranking of what does work, starting with the best repellent/active ingredient:
- DEET works. DEET, chemical name, N,N-diethyl-meta-toluamide, was developed in the 1950s by the U.S. Army and is a well-established mosquito repellent with a long history of use. The higher the percentage, the longer the protection time is – up to six hours.
- Picaridin works. This synthetic repellent can protect for up to six hours at a 20% concentration. This repellent is a promising alternative for DEET.
- Oil of lemon eucalyptus, or OLE, works. OLE, with the active ingredient PMD, is a plant-based alternative to DEET and picaridin. Its repellent properties can last for up to six hours.
- Other essential oils – some work, some not so much. We applied 20 different essential oils in a 10% essential oil lotion mixture to volunteers’ skin. Here’s what we found: Clove oil works. This oil, with the active ingredient eugenol, can protect from mosquito bites for over 90 minutes at a 10% concentration in lotion. Cinnamon oil works. This oil, with the active ingredients cinnamaldehyde and eugenol, can protect from mosquitoes for over 60 minutes at a 10% concentration in lotion. Geraniol and 2-PEP, or 2-phenylethyl propionate, work for about 60 minutes at a 10% concentration in lotion. Citronella oil works, just not so great. We found citronella oil at a 10% concentration only protected from mosquito bites for about 30 minutes.
Based on our study, we recommend using repellents with the active ingredient DEET if you live in or are traveling to regions with a high risk of vector-borne disease transmission. However, plant-based repellents will work just fine to prevent nuisance mosquito bites in low-risk areas, as long as you reapply them as needed.
Immo Hansen is a professor of biology at New Mexico State University, where he studies new ways to control vector-borne diseases. Hailey Luker is a Ph.D. biology student at New Mexico State. Her research ranges from repellent testing using ticks and mosquitoes to molecular research studying amino-acid transport proteins in mosquitoes.
Tuesday, July 18, 2023
Advocates of using psychedelic drug ibogaine to treat addiction say its risks to the heart can be mitigated in a controlled study
Kentucky Health News
The Kentucky Opioid Abatement Advisory Commission held its first public hearing Monday, July 17, to discuss funding development of an opioid-use disorder treatment using the psychedelic drug ibogaine with some of the money the state is getting from settlements with drug makers and distributors.
The commission heard from five experts, all in favor of the idea, and two people who have successfully used ibogaine in other countries to recover from their opioid addictions. The drug is illegal in the U.S. but has been anecdotally reported to stop the withdrawal symptoms of opioid dependence.
Juliana Mulligan, a psychotherapist and ibogaine treatment specialist in New York, told the story of her opioid addiction and the seven years she spent in and out of treatment and jail. With the support of her parents, she traveled to an ibogaine clinic in Mexico, and that experience involved a "plethora of mistakes" that landed her in the hospital with cardiac issues that resulted in a heart attack.
Ibogaine's effects on the heart are a major obstacle to its use, and the commission discussed that with another expert. But Mulligan called her experience with the drug "nothing short of miraculous" and said she has not used an opioid or had a craving since November 2011.
"Despite the dramatic hospital story, the medicine did its job for me," she said. "I remember suddenly feeling with total certainty that ibogaine is the future of opioid-disorder treatment. . . . Of course, ibogaine isn't magic and it isn't a cure, but it is hands-down the best door open to the path of healing that myself and many other could find."
Jessica Blackburn of Floyd County talked about her success with ibogaine in 2008 for opioid-use disorder after many attempts at recovery. Blackburn said she relapsed, but in August will have gone eight years without using any drugs.
Blackburn said she would not be alive today "without the use of iboga," the African shrub from which the drug is produced. "No Kentuckian should have to leave the country to receive this life-saving treatment."
Drug developer calls for 'Manhattan Project'
Dr. Deborah Mash, founder and CEO of DemeRx, which wants to develop ibogaine as an addiction treatment, told the commissioners that if clinical trials are approved for it, her company would look to demonstrate that ibogaine could be used for relapse prevention.
"This class of molecules, ibogaine in particular, opens plasticity in the brain, and this is, we believe, why we will be able to prove — in effective and well-designed clinical trials — that this drug is transformative," said Mash, an emeritus professor of neurology at the University of Miami.
She said that research of treating hard-core drug users with ibogaine "demonstrated . . . not only that it benefited people, but we also demonstrated that it could be administered safely under full medical monitor."
"I believe that many of these deaths were likely preventable," he said. "This highlights the need for adequate medical supervision during ibogaine treatment, minimally including cardiac monitoring."
Sunday, July 16, 2023
In the first two months of resumed checks for Medicaid eligibility, almost half of Ky. members up for renewal lost their coverage
- Address — make sure kynect.ky.gov has your correct mailing and email address, along with your phone number.
- Check mail — you may receive a letter about your Medicaid or Kentucky Children's Health Insurance Plan renewal letting you know that you need to complete a redetermination form to maintain your coverage.
- Turn the form in — if you get the form, fill it out and return it right away. This may help you avoid losing Medicaid or KCHIP.
Judge reverses his ruling that blocked law on gender-affirming care, citing 2-1 ruling of appeals court handling similar cases
Kentucky Lantern
A federal judge on Friday stayed a temporary block on part of a new Kentucky law that banned gender-affirming medical care for transgender minors.
That means Kentucky’s transgender children are now banned from receiving hormone treatments, a move celebrated by Attorney General Daniel Cameron, who requested the reversal.
Corey Shapiro, legal director for the American Civil Liberties Union of Kentucky, gave the other side: “While we strongly disagree with this opinion, it is only in effect while our appeal is pending in front of the Sixth Circuit. It is not the final word, and we remain optimistic that with a full briefing we will achieve a positive result.”
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| District Judge David Hale |
Last week a panel of the 6th Circuit Court of Appeals, in a 2-1 decision, overturned a similar district court ruling in Tennessee, allowing that state’s ban on gender-affirming medical care for minors to take effect.
Hale, an appointee of Barack Obama, based his latest decision on the appeals court ruling in the Tennessee case.
Cameron, who is running for governor, said in a statement that the ruling was a “win for parents and children.” He also criticized the “influences of leftist activists.”
“Moving forward, my office will continue to defend Senate Bill 150 and stand up for the right of children to be children,” Cameron said.
State Sen. Max Wise, who sponsored SB 150, also celebrated the court’s decision.
“I’m pleased to know the holistic well-being of Kentucky’s transgender children, at least for now, will be fully considered,” said Wise, a Republican from Campbellsville.
Rebecca Blankenship, executive director of Ban Conversion Therapy Kentucky, and Michael Frazier, its government-affairs director, said in a joint statement that the decision marks “an extremely difficult moment” for the state’s trans children.
The decision, they said, “was a lost battle, but not the end of the war in this case or the broader fight to protect Kentucky’s kids.”
10th annual hepatitis conference to be held July 27 in Lexington
Kentucky Health News
Kentucky, which has one of the nation's highest rates of hepatitis C infection, will hold its 10th annual Viral Hepatitis Conference next week, on the day before World Hepatitis Day.
The conference, hosted by the Kentucky Rural Health Association, will look back at hepatitis over the last 10 years, and make some predictions for what the next decade may hold. It will run from 7:30 a.m. to 5:30 p.m. July 27 at the Embassy Suites on Newtown Pike in Lexington.
After the conference, from 6 to 8 p.m., there will be 10-year celebration dinner and awards ceremony and dinner. All who attend the conference are invited.
Each conference session will evaluate the key question asked in the conference title, "How Far Have We Come, and Where Do We Go From Here?"
The morning sessions will include discussions of HIV (human immunodeficiency virus) in Kentucky, including screening, referral and resources; and an introduction to PrEP (pre-exposure prophylaxis), medicine that can reduce a person's chance of getting HIV from sex or injection-drug use.
Afternoon sessions will offer a national and a statewide view. The conference will also include sessions that take a look at hepatitis D, perinatal hepatitis B, hepatitis C projects in Kentucky, and pregnant women and children with hepatitis C, and explore drugs and interventions available to treat the disease.
Click here to register for the conference. The cost to register is $50 before July 20. After that date, the cost increases to $75. Click here for more information and the agenda.
In 2020, the latest data available on the Centers for Disease Control and Prevention website, the rate of reported cases of acute hepatitis C in Kentucky was 3.2 cases per 100,000 people, more than double the national rate of 1.5 per 100,000. Kentucky ties with Utah for the sixth highest rate in the nation.
Thursday, July 13, 2023
Opioid commission, with new member, will hold hearing Monday, July 17 on ibogaine, exotic drug proposed for drug treatment
By Melissa Patrick
Kentucky Health News
The Kentucky Opioid Abatement Advisory Commission will hold its first public hearing Monday, July 17, about the use of an exotic psychedelic drug, ibogaine, as a treatment for opioid-use disorder.
The hearing follows the May 31 announcement at which Bryan Hubbard, the commission's chair and executive director, asked the commission to consider using $42 million of the more than $900 million in settlement funds being paid by drug companies to invest in clinical trials of the drug to win approval for its use.
The public hearing will be held in the Administrative Office of the Courts building, 1001 Vandalay Drive, Conference Room A-125, Frankfort from 9 a.m. to 3:30 p.m. It will be live-streamed for those unable to attend.
Hubbard told the commission at its July 11 meeting that the hearing will include an expert panel of researchers and clinicians who will provide insight into ibogaine therapy as a treatment for addiction. Hubbard told Kentucky Health News that all of panelists will speak in support of the treatment.
The panelists listed in a press release are Dr. Kenneth Alper, associate professor of psychiatry and neurology at the New York University medical school; Dr. Deborah Mash, professor of neurology and molecular and cellular pharmacology and director of the Brain Endowment Bank at the University of Miami, and founder and CEO of DemeRx; Dr. Srinivas Rao, chief scientific officer at ATAI Life Sciences in Berlin; Dr. Douglas Kramer, senior vice president, pharmacovigilance and regulatory affairs, Athenex Inc.; and Dr. Nolan Williams, associate professor at Stanford University and director of the Stanford Brain Stimulation Lab.
The press release was issued by a public-relations firm that is being "retained by a private benefactor who is supportive of " the commission's efforts "who wishes to remain anonymous," said an email from Brad Burge, founder of the firm.
After opening remarks from each panelist, there will be a "round robin" question-and-answer session with the commissioners that will last four hours, Hubbard said. He said this process will allow for "a very open and vigorous and enlightening conversation about whether ibogaine is something that is worth considering or pursuing or not."
He said at least two people will talk about their recovery experience with ibogaine treatment outside the U.S., which has not approved the drug for any use. He told Kentucky Health News that the public would be allowed to ask questions for about 30 minutes at the end of the meeting.
The second public hearing on ibogaine has been rescheduled to Sept. 15 from 9 a.m. to 3:30 p.m. at the Administrative Office of the Courts, 1001 Vandalay Drive, Conference Room A 125, Frankfort.
New commissioner appointed![]() |
| Patricia Freeman |
Freeman replaces Sharon Walsh, principal investigator of the $87 million National Institutes of Health-funded study, which is aimed at finding tools for preventing and treating opioid addiction.
Walsh told Kentucky Health News that she was leaving the appointment due to additional and ongoing work responsibilities. She wrote in an email:
"We were informed a few weeks ago by the federal government that the HEALing Communities Study (which I lead) is being extended once again by the NIH (it was originally a 4-year project and is now going to be a 6-year project). Between that, other new NIH projects, and my leadership responsibilities at the university, I needed to reduce some of my extra external activities. Of Freeman's appointment, she said, "She is very knowledgeable and I know she will do a great job."
At the June meeting, Walsh questioned the idea of using opioid-settlement money to do clinical trials of ibogaine and pointed out that Mash, whom she knows, is the founder and CEO of a pharmaceutical company developing ibogaine for treating addiction, which presents a "clear conflict of interest." She also pointed out that there are already drugs available for opioid withdrawal if that is the main goal of these trials.
Application portal to close and reopen
The application portal to apply for an opioid settlement grant will close Aug. 30, 2023 for maintenance and will re-open on Jan. 1, 2024. Hubbard said because of this, any grants that are in process and those who want to complete their application need to have that done by Aug. 30. He added that more information will be forthcoming on the website.














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