Experimental Drug Stops Parkinson’s Disease Progression in Mice

Researchers at Johns Hopkins University School of Medicine published an article in Nature Medicine Journal outlining how administration of a drug called NLY01 stopped the progression of Parkinson’s disease in mice specially bred to develop this illness for research purposes. The medication is an alternative form of several diabetic drugs currently on the market including Byetta, Victoza and Trulicity. Those drugs penetrate the blood brain barrier poorly. NLY01 is designed to penetrate the blood brain barrier.

In one study, researchers injected the mice with a protein known to cause severe Parkinsonian motor symptoms. A second group received the protein plus NLY01. That group did not develop any motor symptoms of Parkinson’s disease. The other group developed profound motor impairment.

In a second experiment, they took genetically engineered mice who normally succumb to the disease in slightly more than a year of life. Those mice, when exposed to NLY01, lived an extra four months.

This is positive news in the battle to treat and prevent disabling symptoms in the disease that affects over 1 million Americans. Human trials will need to be established with questions involving whether the drug is even safe in humans? If safety is proven then finding the right dosage where the benefits outweigh the risks is another hurdle. The fact that similar products are currently being used safely to treat Type II Diabetes is noteworthy and hopefully allows the investigation to occur at a faster pace.

Parkinson’s disease is a progressive debilitating neurologic disorder which usually starts in patient’s 60 years of age or greater. Patients develop tremors, disorders sleeping, constipation and trouble moving and walking. Over time the symptoms exacerbate with loss of the ability to walk and speak and often is accompanied by dementia.

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Prostate Cancer, Digital Rectal Exams, PSA and Screening

The PSA blood test, to detect prostate cancer, clearly has saved lives according to numerous studies. The United States Preventive Task Force (USPTF) recognizes this but has decided that screening for prostate cancer is not a great idea in men aged 55-69. They point out the PSA can be elevated from an enlarged prostate, an inflamed or infected prostate, a recent orgasm while having sex and other causes.

Elevated PSAs led to trans-rectal ultrasound views of the prostate and biopsies of the prostate. These biopsies were uncomfortable, even painful, and often followed by inflammation and infection of the prostate. Many times the prostate biopsy was benign with no cancer detected. The USPTF felt the cost, worry, and potential side effects were a risk far outweighing the benefits of screening. They consequently came out against screening men in this age group.  Naturally this position produced a tidal wave of criticism from urologists and other.

So, the USPTF has produced new recommendations calling for patient education and making a shared decision whether or not to obtain a PSA measurement before you send it out. This is a bit confusing because we always discuss the pros and cons of a PSA before we draw it. Adult men are entitled to hear the pros and cons so they can make their own informed decision.

To complicate matters, a study out of McMaster University in Canada reveals physicians are poorly trained in performing a digital rectal exam. They cite the lack of experience coming out of school and going into training and cite numerous research studies showing a rectal exam is a low yield way to detect prostate cancer. They do not recommend performing digital rectal exams for prostate cancer screening.

This received much media hype and the blur between the efficiency of detecting prostate cancer via a rectal exam and the use of the rectal exam to detect rectal and colon disease has been lost. We perform digital rectal exams to detect prostate cancer and look at the perirectal area for disease. We test the strength and performance of the anal sphincter muscle. We feel for rectal polyps and growths and, in certain situations, test the stool for the presence of blood.

During my internal medicine training my teachers always required a digital rectal exam, stool blood test and slide of the stool as part of the exam. As trainees, we realized the invasiveness of the exam and did our best to be polite, gentle and caring. I always asked for permission first, and still do. How can you tell if something is abnormal if you haven’t performed normal exams?

Last but not least, Finesteride, a medicine used to shrink an enlarged prostate by inhibiting male hormones, has finally been shown to be protective against developing prostate cancer. A study published in the journal of the National Cancer Institute found that men taking it for 16 years had a 21 % lower incidence of prostate cancer.

Does Curcumin Use Help with Cognitive Dysfunction?

Recently, more and more patients have been adding curcumin or turmeric to their cooking to help with their memory. Curcumin is a metabolite of Turmeric and has been available in health food stores for years.

A study a few years back on Alzheimer’s patients published by J. Ringman and Associates showed no benefit in slowing the development of symptoms and no improvement in symptoms when supplied with curcumin. When they looked closely at their study, and analyzed the participant’s blood, they found that curcumin was not absorbed and never really entered the bloodstream.

Last month a study was published in the American Journal of Geriatric Psychiatry by Dr. Gary Small and colleagues. They looked at 40 patients with mild memory complaints aged 50 – 90.  Some were administered a placebo and others were administered nanoparticles of curcumin in a product called “Theracumin”. The participants were randomized and blinded to the product they were testing. The study designers felt the nanoparticles would be absorbed better than other products and would actually test whether this substance was helpful or not. At 18 months, memory improved in patients taking the nanoparticles of curcumin and they had less amyloid deposition in areas it usually found relating to Alzheimers Disease.

Robert Isaacson MD, the director of the Alzheimer’s Prevention Clinic at Weil Cornell Medicine and New York- Presbyterian, has been suggesting his patients cook with curcumin for years. Until the development of the Theracumin nanoparticles, cooking with curcumin was the best way to have it absorbed after ingestion. There is now some evidence to suggest that curcumin, in this specific nanoparticle form, may play a role in both the risk reduction and potential therapeutic management of Alzheimers Disease.

Fitness Lowers Your Risk of Dementia

Over the years I have read and passed on to my patients the benefits of exercise on quality of life and healthy aging. This hypothesis was supported by a recent publication in the journal “Primary Care” by Peter Lin, MD, CCFP. Dr Lin and colleagues followed a group of woman aged 38 to 60 years for 44 years to determine the relationship between fitness and development of dementia. They chose to follow 191 women from a group of 1462 patients and selected a balanced number of patients in each age group up to age 60. They performed a physical fitness test on the women in 1968 and then grouped them into high fitness category, intermediate fitness category and low fitness category based on their performance in the physical fitness test. The women then received neuropsychiatric evaluations in 1974, 1980, 1992, 2000, 2005 and 2009.

The patients within the high fitness group showed an 88% reduction in dementia rate compared to those with medium fitness. Those in the lowest fitness group had a 41% increase d risk of dementia compared to the medium fitness group. Those patients in the high fitness group who developed dementia showed symptoms 9.5 years later on average than the patients in the medium fitness group.

The message for young adults is simple. Stay fit at a high level doing something you enjoy and you may reduce your risk of developing dementia by up to 90%.

Fish, Fish Oils and Cardiovascular Disease

Years ago the scientific researcher responsible for the promotion of fish oils as an antioxidant and protector against vascular disease recommended we all eat two fleshy fish meals of cold water fish a week. He continued to endorse this dietary addition and included canned tuna fish and canned salmon in the types of fish that produced this positive effect.

Over the years I heard him lecture at a large annual medical conference held in Broward County and he fretted about the growth of the supplement industry encouraging taking fish oils rather than eating fish. He worried about the warnings against eating all fish to women of child bearing age because of the fear of heavy metal contamination and knew that the fish oils and omega 3 Fatty Acids played a developmental role in a growing fetus and child.

I then attended lectures, in particular one sponsored by the Cleveland Clinic, during which they promoted Krill oil as the chosen form of fish oil supplements because it remained liquid and viscous at body temperature of 98.6 while others solidified. I listened to this debate only to hear the father of the science speak again and this time advocate that one or two fleshy fish meals a month was adequate to obtain the protective effect of Omega 3 Fatty acids. He felt that the supplements did not actually provide a protective effect as eating real fish did. Since I love to eat fresh fish I had no problem with this message but others are not comfortable buying and preparing fish at home or eating it at a restaurant. Supplements to them were the answer.

Steve Kopecky, M.D. examined the question in an article published in JAMA Cardiology this week. He looked at 77,917 high risk individuals already diagnosed with coronary artery disease and vascular disease who were taking supplements to prevent a second event. His study concluded that taking these omega 3 supplements had no effect on the prevention of recurrent cardiovascular events. The study did not discuss primary prevention for those who have not yet had a vascular illness or event.

Once again it seems that eating fish in moderation, like most anything, is the best choice. I will continue to eat my fresh fish meals one or two times per week, not necessarily for the health benefit but because I enjoy eating fresh fish.

I advise those worried about preventing primary or secondary heart and vascular disease to find a form of fish they can enjoy if they want this benefit. If you really wish to reduce your risk of a cardiovascular event; I suggest you stop smoking, control your blood pressure and lipid profile, stay active and eat those fresh fish meals.

More on Shingrix, the Shingles Vaccine

Recently, the FDA approved a new shingles vaccine called Shingrix. It is a two shot series with the suggestion made that the second shot should be taken 2 – 6 months after the first one. Shingrix will replace the original shingles vaccine Zostavax. Shingrix is recommended in all patients over 50 years old.

For those of you who have had the original shot, Zostavax, the new vaccine is still recommended. It is covered by Medicare Part D which means you must take it in a pharmacy or walk in center not in your doctor’s office. While this makes NO sense, it is the rule. If you have had shingles it is still recommended you take the new vaccine (Shingrix).

Shingles is a skin rash and painful skin condition caused by the chicken pox virus Varicella. When you have chicken pox and complete the infection course you are immune but the virus remains alive forever, living in sensory nerve endings along the spinal cord. One third of adults will have an outbreak of this varicella virus which will appear along the path of a sensory nerve or dermatome on one side of your body. It will go through the full cycle of rash, pustule and then scab that the chicken pox did. A significant number of patients will continue to have pain over the involved skin for prolonged time periods in what we call post herpetic neuralgia. The pain is described as severe as an eye scrape, passing a kidney stone or going through labor and delivery.

The original shingles vaccine, Zostavax, protected against the rash 51% of the time and against post herpetic neuralgia 67% of the time. This efficacy dropped to about 30% after four years. The new vaccine, Shingrix protects against the rash over 90% of the time and against the pain syndrome 85-90% of the time while lasting for more than four years.

Only five percent (5%) of patients receiving Shingrix develop side effects. The most common are fever, myalgia and chills. In view of this, I am suggesting to my patients we allow the vaccine to be on the U.S. market for a year to see the adverse event profile and, if safe, we then start the series of shots.

Emergencies and the Rational For Our Treatment Algorithm

We are a primary care medical office that tries to deliver personalized attentive care. We define emergencies as chest pain, significant breathing difficulty and loss of consciousness, uncontrolled bleeding or pain, sudden change in mental status and behavior or major trauma. In these situations, my office staff receiving a phone call interrupts me so I can speak with you and determine whether or not to advise you to call 911. We do this because we know with life threatening situations time is of the essence.

Emergency Medical Services at 911 can arrive within 5 minutes. They are all Advanced Cardiac Life Support (ACLS) trained and carry the equipment and medications to provide life sustaining care while you are transported to a hospital Emergency Department that has the staff, medications and equipment to keep you alive while we diagnose the problem and create a plan to rectify it.

The office staff is trained in Basic Cardiac Life Support. We do not have a defibrillator. We do not maintain and store medications to correct low blood pressure – cardiac arrhythmias. We do not have endotracheal tubes to intubate you and breathe for you. In the past, when we tried to maintain these supplies, they became outdated due to infrequent use and were expensive to replace. Since we do very few resuscitations day to day we are not as experienced or efficient as EMS and emergency department personnel are.

I realize the wait for care and institutional care settings are not pleasant. We sacrifice that for the best chance to keep you healthy. Trust me, it is no fun cancelling a scheduled patients to run to the ER and then return already behind. We do it for your comfort and security and safety.

In the recent past patients with chest pain resembling heart disease, trouble breathing and excessive bleeding have refused to call 911 and were upset when we did not bring them into the office. We do this for your health and safety not our convenience. If you would like to discuss this feel free to contact the office.