Amir. Screenshot. |
@amirthevet Must know for all Cat owners !! The advice you needed to hear ! #catowners #catlovers #veterinarian #learning #vet #cats #catlearning #kidneydiseasecat #fyp ♬ original sound - Amir Anwary
Amir. Screenshot. |
@amirthevet Must know for all Cat owners !! The advice you needed to hear ! #catowners #catlovers #veterinarian #learning #vet #cats #catlearning #kidneydiseasecat #fyp ♬ original sound - Amir Anwary
Chronic kidney disease may decrease a cat's ability to produce red blood cells which can lead to anaemia. This impairs the cat's ability to transport oxygen around their body. Their gums may appear pale pink or whitish in colour and the disease make them lethargic. It can lead to euthanasia or death.
It's reported that the United States Food and Drug Administration (FDA) has approved a drug to treat this form of anaemia which is caused by chronic kidney disease. The drug is called Varenzin-CA1.
It's been granted a one-year conditional approval. This means it can be used while the FDA finish collecting effectiveness data.
The sponsor of the drug will need to show that it is effective in order to achieve full approval. They will be given for annual renewals to continue with the drug but if the requirements are not met after five years the product will be removed from the market.
I'm told that this is the first drug to receive conditional approval for use in domestic cat. That comes from the FDA.
The disease is called non-regenerative anaemia. It is triggered when the cat's bone marrow does not produce enough red cells to replace older red cells which as mentioned creates an oxygen deficiency.
We know that chronic kidney disease is common in older cats. It is often a cause of death. I'll presume that non-regenerative anaemia is an associated cause of death.
The drug works to increase production of a hormone secreted by the kidneys, erythropoietin, which stimulates bone marrow to produce red blood cells.
It is given orally and was evaluated in a two-phase study on 24 cats aged between 4-17 of different breeds and random bred cats.
It is given once daily for 28 days and it can be given in a second session of 28 days with a minimum seven-day interval. It can be received through prescription by a licensed veterinarian.
Potential side-effects are blood clots, vomiting and increases in systolic blood pressure as reported by the FDA.
A person on social media asked for some advice because their cat is vomiting and they are suffering from chronic kidney disease and hyperthyroidism. They are seeing a veterinarian but they wanted to bounce the problem off other social media users one of whom is me. Of course, I strongly advocate seeing a veterinarian and this person has seen a veterinarian about the recent developments and will see them again.
Image: MikeB |
This is my brief response:
"I am not a veterinarian but I know cats very well. Your cat has chronic kidney disease. She is vomiting. Is there a link between chronic kidney disease and vomiting? That is the question that comes to my mind.
There is a connection. Signs of uraemia which is toxins in the blood because they are not being eliminated by the kidneys, can result in vomiting, diarrhoea and anaemia.There are other symptoms. So, it's just possible that the chronic kidney disease may have advanced more than is believed.That said, the vomiting might not be linked to the kidney disease. Domestic cats vomit very well and competently for a large number of reasons and those reasons might not be associated with her chronic illness.Has the vet done a urine test for blood urea nitrogen (BUN) and creatinine? I would ask the vet about that asap.I don't think vomiting is linked to hyperthyroidism. Hope this helps a bit and the best of luck."
Do any readers of this post have any other thoughts out of interest?
I've just discussed the link between periodontal and kidney disease in cats. There is also a link between kidney disease and bad breath in cats. The same link occurs in humans. Bad breath is sometimes referred to as halitosis. It is due to the excessive amount of urea in the bloodstream when the kidneys are malfunctioning. Kidneys filter out urea. The smell can be like ammonia which is the same smell you pick up when you go into the home of a cat hoarder because the cats have been urinating on the floor due to stress.
Image: MikeB |
The link between bad breath and kidney disease is important because kidney disease is very common in domestic cats affecting between about 2% and 20% of all domestic cat but the prevalence is much higher in elderly cats above the age of 15 where it might be as high as 80%.
The information might be useful as a diagnostic tool in trying to work out why your cat has bad breath but there are other reasons obviously such as poor oral health due to reasons other than kidney disease such as bad gum disease and stomatitis, or something stuck in a cat's mouth or throat such as a bone.
Linked page:
Periodontal disease in cats. Left: Gingivitis. Middle: Teeth cleaning kit. Right: Commercial feline dental food. Image: MikeB |
Professor Miyazaki believes that he might be able to double the expected lifespan of domestic cats to 30 years using a treatment he is working on.
Toru Miyazaki, 59, professor at the Graduate School of Medicine of the University of Tokyo. Picture: the University. |
His extensive research found a new protein in the blood of humans and animals. He calls it AIM which stands for "apoptosis inhibitor of macrophage". Yes, I know that doesn't help!
He says that feline kidney disease is caused by dead cells piling up in the urinary tract which blocks the passageway like a clogged drain. This leads to kidney damage.
He says that AIM acts as an agent to unclog the pipes. AIM "goes to the problem area through the blood and flags exactly where the waste is. AIM itself does not dissolve the problem cells; rather other cells like macrophages come along to eat them". Macrophages are cells which destroy harmful organisms. They are also described as a "type of white blood cell that eats and digests foreign material inside the body."
He wants to administer AIM to cats via a vaccine as a preventative medicine and perhaps in other ways (orally or in a capsule?). He's started clinical trials in 2020 (reported). He wants the treatment to become a commodity i.e. a useable product by 2022.
My cat died on CKD. Photo: MikeB |
He's excited by the possibility of AIM extending the lives of cats dramatically. He's correct in saying that feline kidney disease is a mass killer, shortening the lives of domestic cats in huge numbers.
His work is reactive essentially. I hope that he is successful but what about researching the reason why feline kidney disease is so disastrously prevalent in the domestic cat population? Is it the food? It might be. Why do domestic cats die of kidney far more often than humans? We need to address that question with more vigour.
No one comes up with a satisfactory answer as to why domestic cats are so predisposed to kidney disease. The situation indicates an underlying but as yet unknown environmental reason. My best bet is the commercial foods that we feed them. It might be the dry foods which have gained in popularity tremendously over the past decades.
CKD affects 8+ percent of cats of 10 years old and older. One well-known vet, Dr Elizabeth Hodgkins believes that dry cat foods are the culprit and feeding high quality wet foods can help dramatically plus a powdered phosphorus binder. One cat, Georgia, did very well on "fluids, a phosphate binder and a commercial high-protein diet. Read her book Your Cat to find out more.
Cat owners should also wish the best of luck to the professor in his quest to increase the life of domestic cats from 15 to 30 years.
The most common domestic cat diseases treated under pet insurance policies in America in 2018 were reported as: undiagnosed diarrhoea and vomiting, urinary tract diseases, kidney diseases, gastrointestinal conditions, hyperthyroidism, diabetes, periodontitis and general oral health problems. This information comes from five different pet insurance companies: Trupanion, ASPCA, Pets Best, Nationwide and Embrace.
You can see a trend there or at least I can. Urinary tract problems including kidney disease are a major issue in domestic cats and also it seems are diseases of the gastrointestinal tract. These would appear to be related to diet because what goes in has to be digested and waste is expelled. Both ends of the food processing channel are affected.
Photo: Pixabay. |
I have this feeling that there is something hidden is going on in homes in the West which is affecting the health of domestic cats. The high incidents of kidney disease is unacceptable. And I don't think anything is being done about it. I'm referring to food and the chemicals in the home such as fire retardants and carpet chemicals. These are volatile chemicals which give off fumes and these fumes linger in the atmosphere inside the home. I wonder whether the air quality inside homes is sufficiently good for domestic gas. If it isn't it can't be good for people either but cats are nearer the surfaces.
Cats lie on sofas. If that sofa has a fire retardant inside it then the cat is more likely to absorb these chemicals. The same goes for carpet chemicals. These are examples. And as for cat food, I think we know now that the cheap dry cat food is simply not good enough. A lot of people rely on it because it is cheap and convenient. They allow their cat to graze at any time day or night. Arguably this is overly convenient.
You add to poor quality dry cat food the extended daytime absence of solme human caregivers and you create a slightly toxic world for the domestic cat which can result in urinary tract health problems such as cystitis, a bacterial infection of the bladder, exacerbated by stress.
If there is a high predominance of gastrointestinal diseases causing vomiting and diarrhoea then surely this points to food. Doesn't it? Shouldn't veterinarians be looking at the quality of food provided to domestic cats? Perhaps they don't want to look at it because they want a huge number of cats coming through their doors vomiting and shitting diarrhoea. I am too cynical. One pet insurance company said that they paid out US$9,650 to treat a cat with a gastrointestinal condition.
They also said that they paid out US$40,000 to treat a cat with kidney disease. Do the insurance companies investigate the cause of these diseases? Do they dig around and try and prevent the diseases happening? Do they have a vested interest in doing nothing about these diseases? Do they work together with veterinarians and pet food manufacturers to try and eliminate them? I know there are lots of questions but can you find the answers? I don't think you can. I know that the pet food manufacturers work with veterinarians and this to my mind creates a conflict of interest.
Two pet insurance companies rated diabetes as their third most common cat illness claim. Arguably, feline diabetes, which I presume refers to type II diabetes or sugar diabetes, might be caused by the high carbohydrate content in dry cat food. Dry cat food has to have a high carbohydrate content in order to make it. It is there simply as a manufacturing necessity. Domestic cats don't need this sort of carbohydrate level in their food. It is unnatural to them and it is causing, it is argued, hypoglycaemic cats and overburdening the pancreas which produces insulin. This upsets the insulin/sugar balance in domestic cats which can lead to type II diabetes. This is the argument of a well-known veterinarian in America called Elizabeth M Hodgkins DVM.
I am harping on about cat food. And I do give my cat dry cat food although it is the highest quality I can find. And I also feed him lots of high quality wet cat food. But I am dissatisfied in general with the quality of cat food. It does not reflect accurately enough the perfect domestic cat diet which is the mouse which is 40% protein, 50% fat and only 3% carbohydrates. The average dry cat food for cats contains 35-50% carbohydrate calories according to the catinfo.org website. Do you see the massive difference and how that could impact a cat's metabolism and ability to cope with it?
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