art by Cal Meyer

Cats and boxes are a purrfect combination.  An enclosed space like a box can be a safe place, help keep a cat warm and give him a vantage point to ambush “prey” (unfortunate insects, catnip mice…). Boxes are also popular with other animals – big cats are often given boxes for enrichment at zoos and refuges; dogs also like boxes to play in but some may tend to chew the box up!

Cats will also sit on just about anything, comfortable or not. Anyone who does craft projects well knows that once the fabric is out to be cut, a cat will be sitting on it soon enough. Years ago, cats sat on newspapers if you tried to spread the paper out on the table – nowadays, they park on computer keyboards. Some of this is attention-seeking behavior – Zelda only lets me type so long Sunday mornings before she gets up on my desk and threatens to contribute to the post if I don’t take her for her morning walk.

In 2009, the USPS came up with the Christmas slogan, “If it fits, it ships”.  A few years later, a variant of the slogan became an Internet cat meme: “It it fits, I sits”.  This gave rise to posts of cats in all sort of places, from egg cartons and shoeboxes, to bowls and sinks.

The Internet exploded again in 2017 as people used tape to outline squares on the floor for their cats to sit in. Cats were “trapped” in all manner of taped shapes, with cat experts offering explanations ranging from cats reacting to new smells (from the tape) to survival instinct, where the cats must investigate something new (the taped square) to determine if it poses danger to them.  Some felt that the taped square offered the cat a sense of security, much like a real box.

The phenomenon did not stop here – in 2020, during the COVID pandemic, a woman in the Philippines photographed stray cats practicing “social distancing” – the cats sat on circles painted on the ground 6 feet apart outside a food market.

cats and boxes: optical illusions


It is not surprising that cats in taped squares became the subject of a research study investigating cats’ responses to optical illusions. In a two month study in June-August of 2020, researchers at Hunter College enrolled over 500 cat owners to participate in a study to assess cats’ responses to a taped square, a Kanizsa square (which gives the illusion of a square), and a control figure.

Enrolled owners were sent booklets containing pairs of these shapes that they affixed to the floor.  The owners then took videos of their cats’ responses to the shape-pairs and submitted the videos to the research team.  They were to do this once daily for 6 days.

The results found that of the 30 cats that completed all six trials of the experiment, only nine of them “participated”, that is, sat in one of the shapes. These cats were just as likely to sit in the taped square as the Kanizsa square. Only once did one of the cats choose to sit in the control shape.

What does this tell us about cats? Are they susceptible to the optical illusion of a square? Do they recognize it as a square? I think more research will have to be done:

  • Only 9 out 30 cats actually sat in the shapes.
  • Cats are not as tall as we are and don’t see well close up. Can they see the squares from their vantage point?
  • I, for one, would like to know how many cats will voluntarily sit in a taped outline – I tried leaving a hula hoop out on the floor to see if any of my four cats would voluntarily sit in the circular outline. I did not have any takers!

This study is the first to use “citizen scientists” (the owners) to observe the cats in their home environments, thereby avoiding stress-induced behaviors that cats can exhibit in unfamiliar settings, such as a laboratory.

Back to cats and boxes…


Cats are practical. They prefer their owners to their owners’ T-shirts. I feel that they would prefer a physical box to a taped outline. A box is a great source of enrichment – it can be a bed, a den, it can be place to hide while ambushing a toy mouse going by. Shelter cats acclimate to their surroundings more quickly when provided a box to hide in.

Boxes that are too small to allow a cat to hide may make him feel good by putting physical pressure on his body, like when we wedge ourselves in the corner of the sofa watching a favorite TV program.  Pressure on soft tissue has been shown to promote relaxation and reduce anxiety in both humans and animals.

So, make sure your cat has a safe place – a place he can call his own, a place that is secure, secluded, a hiding place to retreat to, warm in the winter, cool in the summer. It can be a cardboard box in a closet or in a secluded corner!

Want to keep up with the world of cats?  Subscribe to The Feline Purrspective!

 

Subscribe

Identifying signs of cat dementia is not always straightforward. In the hubbub of daily life, behavior changes can be subtle and go unnoticed until they are more severe.

Changes in behavior can indicate if your cat’s mental state has changed. The acronym VISHDAAL summarizes the behavior changes we need to observe to care for our senior cats.

V = changes or increase in vocalization
I = changes in interaction with us and other pets
S = changes in sleep-wake cycle: restlessness, night time activity
H = housesoiling
D = disorientation and confusion
A = changes in activity
A = anxiety
L = learning and memory

Three cats – three outcomes


rupert, 18 year old neutered male siamese

Cat on sailboat


I had two senior Siamese cats when I had my first child.  A first-time mom, I was frazzled, dealing with the completely new experience of parenting and was not paying as much attention as I should have to my cats.

One day, an acquaintance asked why one of the cats, Rupert, was sitting on the kitchen counter, in a corner, facing the wall. I had been aware that he did that sometimes but when I paid closer attention, I found that he would eat in the morning, use his litter box and then spend the day on the counter, facing the wall. He would come down to eat, drink, and use the litter box but always returned to the counter.

Behavior Changes – signs of cat dementia?

  • I – Rupert was no longer interacting with us.
  • D – He seemed confused and “out of it” – sitting on the counter all day
  • A – His activity had changed – he did not move much from the counter

Diagnosis:

Rupert had lost quite a bit of weight, although he was eating well. My vet diagnosed him with hyperthyroidism, which was a new disease in cats at that time.

Outcome:

Use of radioactive iodine to treat the disease was pioneered about 10 years earlier but it was not commonplace. Surgery was an option but at 18 years of age, Rupert was not a good candidate for surgery and we elected euthanasia due to his declining Quality of Life.

The Takeway:

I suspect that Rupert had moderate to severe cat dementia. The symptoms were most likely apparent earlier and I just did not recognize them. Nowadays, drug therapy for hyperthyroidism is readily available – methimazole is an FDA approved treatment for hyperthyroid cats. Perhaps treatment of the hyperthyroidism would have reduced the symptoms of cat dementia enough for Rupert to have had some more time with us.

Athena, 16 year old spayed female


Athena had been slowing down over the past year, was not eating as well and was spending most of her time sleeping. We had provided her with steps to access window perches and our bed; we also provided her with a heated bed.

Behavior Changes – signs of cat dementia?

  • I – Although still willing to play, Athena was interacting less with us; she had previously been a “nosy, busybody” kind of cat.
  • A – Athena no longer went on her daily walk and was less active in general

Diagnosis:

Diagnostic blood work did not show any significant changes over the past year. Athena did not show other signs of cat dementia and would still learn new tricks when hungry for treats.

X-rays showed moderate to severe arthritis in one of her hips and knees. We decided to treat her arthritis pain with the drug gabapentin.

Outcome:

Treatment for her arthritis pain has been a game changer for her; her activity level has increased, her appetite has increased, and she is back to “being in your face” when she wants something.

The Takeaway:

Regular checkups and treatment of chronic conditions can make you and your cat happier! Some symptoms typical of dementia may be due to treatable, medical conditions.

Marley, 15 year old neutered male

cat with food puzzle
Marley works the Poker Box, a food puzzle.

Marley is a friendly, affectionate cat with good health overall. In the past several months, Marley showed some of the behavior changes that we need to monitor in senior cats.

Behavior Changes – signs of cat dementia?

  • I – Marley had become more clingy than usual and more interactive
  • D – He seemed confused when playing the nightly game of “treat toss” – he seemed to forget that he was chasing a treat!
  • A – He did not want to walk outside with us (which he has been doing for years).
  • A – He seemed anxious and a little fearful. His interactions with the other cats became timid.

Diagnosis

Marley’s senior exam and blood work did not reveal any abnormalities other than a slight decline in kidney function which could be expected at his age.

Marley appears to have some mild cat dementia. Since these changes were mild, we decided to try SAMe, a dietary supplement. SAMe has been shown to be effective at reducing symptoms of dementia in cats in the early stages of cat dementia.

Outcome

About 2 months have gone by with daily supplementation. Marley is taking his daily walk again and is not as clingy with his humans. He is no longer stand-offish with the other cats and is “catching” his treats again when we play the nightly treat toss.

A Final Word…


Cat dementia cannot be cured but it can be managed. With early diagnosis, appropriate environmental modifications, dietary supplements, therapeutic diets, and medication can help can reduce the symptoms of dementia and improve Quality of Life for both you and your cat.

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe

Cat using food puzzle

At the veterinary clinic where I work, I often hear people say when I ask about their cat’s activity and play, “she sleeps most of the time and meows a lot at night. She doesn’t play – she’s an older cat”. How much of these behaviors is due to “normal” aging? How much is due to other medical conditions or a declining brain?

Cognitive Dysfunction Syndrome in cats or cat dementia refers to the decline in mental abilities associated with aging.

Cat dementia results from damage to the brain.  As your cat ages, the the numbers of molecules called  free radicals are no longer balanced out by the antioxidants in his body. These free radicals are reactive and cross the blood-brain barrier, damaging cells in the brain.

Changes in blood flow to the brain can also cause damage by starving the neurons of oxygen.  High blood pressure, heart disease, anemia – are all conditions that alter the flow of blood to the brain.

How can we tell if our cats are undergoing mental decline? Is there anything we can do about it?

VISHDAAL – behavior changes


Changes in behavior can indicate if your cat’s mental state has declined. The acronym VISHDAAL summarizes the behavior changes we need to monitor in our senior cats, from the most prevalent (vocalizing) to least frequent (changes in learning and memory).

V = vocalization
I = changes in interaction with us and other pets
S = changes in sleep-wake cycle
H = house soiling
D = disorientation
A = changes in activity
A = anxiety
L = learning and memory

How do we sort out behavior changes due to disease and those due to declining mental capacity?

Changes in behavior signal the onset of cognitive decline but they may also arise from other health issues:

  • Cats with untreated high blood pressure or hyperthyroidism may meow at night (vocalizing).
  • Cats with untreated hyperthyroidism may be restless and beg us for food (changes in interactions and sleep).
  • Kidney disease can be accompanied by increased thirst and urination which may result in house soiling (house soiling)
  • Cats with osteoarthritis may have difficulty accessing the litter box (house soiling).

behavior changes: disease vs Dementia


Regular veterinary exams and diagnostics can identify medical conditions such as high blood pressure, hyperthyroidism, and osteoarthritis.  If behavioral changes persist after treating these other medical conditions, your cat may have CDS or cat dementia. 

Cat dementia is a “diagnosis of exclusion” – it is the diagnosis that remains after all the other possible diagnoses have been eliminated. Cat dementia will usually have a slow onset and behavioral symptoms will gradually get worse.

Cognitive Dysfunction (CDS) cannot be cured but management can reduce the symptoms and improve the Quality of Life for both you and your cat.

managing cat dementia


  • environmental enrichment/modification
  • dietary supplements
  • therapeutic diets
  • medication

Environmental enrichment/modification


In the early stages of cat dementia, enrichment increases mental stimulation, leading to the growth and survival of neurons, preserving the thinking processes.  Enrichment should be tailored to the individual cat.  For example, some cats prefer high places; others are “ground dwellers”.  Arthritic cats will not have the range of motion of healthier cats but will still enjoy play that does not require lots of jumping.

Ways to enrich your cat’s environment:

  • play – interactive play and toys
  • scent enrichment – catnip, silvervine
  • food puzzles
  • motion – climbing (cat trees) and exploring (cardboard boxes)
  • supervised outdoor access

As CDS progresses…

Environmental changes become stressful and confusing. Cats with severe cat dementia need an environment that does not change much – daily routines and feeding schedules must be maintained. Litter boxes and feeding stations need to stay in the same place.

A cat with severe CDS may benefit from a “room of his own”, with easy access to his resources. Changes that need to be made must be done slowly. If you need to move a litter box or feeding station, do it gradually over a number of days so the cat can still find it.

Environmental modifications

Modifications to the environment of the cat with dementia should take into account the behavior that she is exhibiting.

  • Cats that constantly beg for food may benefit from a timed feeder at night or treat balls. 
  • Cats with house soiling tendencies may need more litter boxes and ones that are easily accessed, with a lower entry for example. 
  • Cats that become disoriented and confused may benefit from a night light and radio playing soft music.

Dietary Supplements


Dietary supplements in general seek to restore the balance between the activity of antioxidants in the body and the  production of free radicals.  Antioxidants give up electrons to the free radical, effectively “neutralizing” it so that it is no longer reactive. So, these supplements usually contain antioxidants.

SAMe: (S-adenosyl-methionine)  aids in the production of glutathione, an antioxidant. When elderly cats were supplemented with SAMe, there was improvement in cognitive tests. SAMe is best used pro-actively – it is most effective in cats in the early stages of cat dementia.

Proprietary supplements containing vitamins, resveratrol (antioxidant), and fish oils are on the market but there is no clinical data testing cats for these at this time.

other supplements


Melatonin: hormone in the body that is thought to promote sleep. It also has antioxidant properties. Melatonin declines with age.

Pheromones (Feliway), Zylkene, Anxitane (L-theanine) may help reduce anxiety in cats that are disoriented and may promote sleep.

Therapeutic diets


Therapeutic diets containing antioxidants and fish oils have been shown to help cat dementia. 

  • Feline Mature adult Hill’s Pet Nutrition
  • Purina Pro Plan Age 7+
  • Hills prescription diet j/d with fish oil for osteroarthritis

Diets that reduce anxiety may also help with cat dementia

  • RC Calm diets
  • Hill’s urinary support

Medications


Selegiline: licensed to treat dementia in dogs. Like the dietary suplements, it aims to reduce the production of free radicals.  Selegiline stimulates the production of enzymes that eliminate free radicals.

Anxiolytics: Prozac, gabapentin and clonazepam are used to treat dementia by reducing anxiety.

boxes as enrichment for cats
Boxes can be source of enrichment for senior cats.

If you feel there has been a significant change in your cat’s behaviors, keep a journal or log and make sure to mention it at her next senior exam. Start the conversation with your vet about cat dementia and how to manage it!

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe

 

Cat with a pumpkin

It’s that spooky time of year where black cats and pumpkins are all the rage. But did you know that many cats dine on pumpkin year round? Why add pumpkin to your cat’s diet? Does it work?

pumpkin and cats


Pumpkin is a popular way to add fiber to a cat’s diet. Fiber can be used to manage diarrhea, constipation, diabetes, satiety, and hairballs.
Fresh pumpkin is said to have about 3 g of dietary fiber per cup while canned pumpkin can have up to 7 grams per cup.

What is fiber?


The story about fiber is complex so I will just say that fiber is substances in food that cannot be digested by the enzymes in the small intestines. Fiber arrives in the large intestine undigested and unchanged.

Fiber can be soluble in water or not (insoluble).

 Soluble fibers

  • Some soluble fibers form a gel in the intestines that slows digestion of carbohydrates, keeping blood sugar levels steady.
  • This gel may also block fat that would otherwise be digested.
  • Other soluble fibers ferment in the large intestine, forming the short chain fatty acids (SCFA) that are part of the cross-talk between the intestinal microbiome and the brain.

Insoluble fibers can pass through the GI tract intact and function to “bulk up” stool and help waste move through the gut.

THE TAKEWAY: It important to have the right amount of the right type of fiber.

  • Too much fermentable fiber can result in excess gas and gastrointestinal discomfort.
  • not enough insoluble fiber may result in diarrhea.

Fiber and carnivores


We tend to think of plants when talking about fiber. But our cats are obligate carnivores, meaning they mainly eat meat. Do they need fiber?

“animal fiber”


A wild cat will eat the entire mouse – fur, bone, cartilage, gut content, tendons, ligaments. These indigestible parts act as fiber – bulking up stool and helping waste pass through the intestines. Even the chitin in the wings of that grasshopper can function as fiber. Some of these materials ferment in the large intestine forming SCFA that allow the microbiome in the gut to talk to the brain.

A study looking at “animal fiber” compared a diet of whole rabbits (fur and all) versus supplemented beef for captive cheetahs.  The cheetahs eating the whole rabbits had more SCFA in their stool than those cheetahs eating supplemented beef. The stools of the rabbit-fed cheetahs were also bulkier due to the “animal fiber”.

We don’t feed our cats whole rabbits – plant fiber is more easily sourced so commercial cat food includes these. Research has shown that feeding our cats moderate amounts of fermentable fiber such as beet pulp helps feed the intestinal microbiome without a lot of gas and bulky stool.

“Differences in fiber type and amount likely result in many of the gastrointestinal issues that pet owners see that vary with diet – they can often explain a pet who has poor stool quality on one diet but perfect stool on another. Too much or too little or the wrong mixture of fiber is a much more likely reason for a pet to not do well on a specific diet than a food allergy…” (from Fiber Frustrations, Cummings Veterinary Medical Center at Tufts University)

Back to Pumpkin and cats…


Pumpkin has both soluble and insoluble fiber. One tablespoon of canned pumpkin contains about 0.1 g of soluble fiber and 0.4 g of insoluble fiber. By comparison, 1 teaspoon of metamucil ( psyllium) provides 10 times as much fiber: 2 grams of soluble fiber and 3 grams of soluble fiber.

While pumpkin is safe for most cats, you may have to give a lot of pumpkin to match the level of fiber in say, one of the veterinary therapeutic diets. There are no real guidelines to supplementing fiber in commercial cat diets so talk to your vet if you feel that your cat needs fiber to manage diarrhea, constipation, or hairballs. Your vet can recommend a diet or supplement with the appropriate type and amount of fiber.

If you decide to supplement your cat’s diet with pumpkin, be sure to choose canned pumpkin and not pumpkin pie mix. While pumpkin and cats are a safe combination, the sugar and spices in pumpkin pie mix are not good for your kitty.

The nutritionists at Cummings Veterinary Medical Center (Tufts University) recommend that …“If supplemented, fiber should always be given gradually over a few days to weeks until the stool reaches the desired composition or other desired benefit is reached (or it becomes clear that it is not helping).”

Happy Halloween!Cat posing with pumpkin

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

 

SUBSCRIBE!

Elevated feeding station for a cat
Athena’s microchip feeder raised up on a platform.

My oldest cat, Athena, is 16 1/2 years old now. She was diagnosed with Chronic Kidney Disease (CKD) and osteoarthritis a few years ago.

Signs of CKD

  • Weight loss
  • Poor appetite
  • Lethargy
  • Increased thirst
  • Increased urination
  • Vomiting

 Kidney disease can result in reduced appetite and weight loss due to underlying nausea. As the kidneys become less efficient, cats drink more and more water to compensate for the reduced filtration, but they just can’t drink enough. One side effect of this draw on the body water by the kidneys can be constipation. And constipation can also result in reduced appetite.

Athena was losing weight, seemed depressed, did not want to eat and was not very active. Her quality of life seemed to be declining.

My vet recommended:

  • a laxative
  • an appetite stimulant

I added the laxative to Athena’s moist cat food. When she ate things were good.

If she did not eat:

she did not get the laxative >>she would become constipated >> she would not eat even with the appetite stimulant.

I felt we were trapped in a downward spiral.

It is important to treat the whole cat when managing an older cat with multiple disorders.

treat the whole cat


medical treatment


In addition to kidney disease, Athena also suffers from arthritis. Having been a fairly active cat who went on daily walks, it was disheartening to see her decline her walk and stay at home. Her gait became stiffer, in spite of a heated bed and daily exercise in the form of play.

So, I wondered, what if the pain due to arthritis was a bigger player than we thought?

What if stiff and painful>>not moving as much>> bowels don’t move as well>> constipation >>drop in appetite?

I asked my vet “What if we treat the arthritis pain?” Athena moved fairly well in the vet clinic but x-rays showed quite a bit of arthritis in one hip and one knee. The vet prescribed gabapentin twice daily for Athena.

dietary changes


To reduce the constipation, Athena needed more fluid and a laxative. I decided to try a hydration supplement, Purina Hydracare, and added the laxative to the Hydracare. Fortunately, she liked the Hydracare so down went the laxative in a little Hydracare!  This way I knew she got the laxative without stressing about her eating her entire meal.

environmental changes


Because her hips are painful, it occurred to me that “maybe crouching down is painful” so I elevated the feeding station. While she eats, she puts weight on her back legs, helping strengthen her back legs, which are most likely weaker from her previous lack of activity.

eureka!


  • Athena has responded well to the gabapentin – it does affect her balance a bit but she has become more active again and we have resumed our daily walks.
  • Increased activity combined with the hydration supplement and laxative seem to have have eliminated the constipation.
  • Athena accepted the elevated feeding station right away – I guess being more comfortable encourages her to eat more.

the takeaway


It is important to “treat the whole cat”. Treating Athena’s arthritis pain seems to have been a game changer. Although reduced appetite and constipation often accompanies kidney disease, reducing the pain of arthritis has balanced this out, increasing mobility and appetite.

She is still an old cat but her quality of life has improved dramatically with these changes.

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe

Cats greet other friendly cats by sniffing them first, before engaging in other social activities such as rubbing against each other or grooming each other’s heads. Scent is a way that members of a cat colony identify each other.

We are members of our cats’ social groups and they identify us by our  scent. They greet us by sniffing and rubbing against us. When leaving your cat at the vet or boarding facility, you may be asked to bring a blanket or t-shirt with your scent on it.  Does your scent comfort your cat when she is away from you?

Recently, researchers at Oregon State University tried to test whether such an object actually reduces a cat’s anxiety when her owner is gone. In this study, owners of 42 cats were asked to bring an unwashed object with their scent on it. Scent objects could include the owner’s shoe, sock, night shirt, or blanket.

The test started by evaluating the cat’s attachment to his/her owner – secure or insecure?
The owner would then leave: in some trials, the scent object was left behind; in others, the cat was alone.

The cat’s behavior was evaluated:

  • when he was with his owner
  • when he was alone with the scent object
  • when he was alone without the scent object
  • when his owner returned

Measuring attachment
Psychological attachment is measured using the Secure Base Test. The cat and owner are placed in a strange room for a few minutes; the owner then leaves for a few minutes and returns. The cat’s behavior is observed when the owner is present, when cat is alone, and when the owner returns.

Securely attached cats
willing to explore when Owner is present
continue to explore after Owner leaves
greets Owner on return but continues to explore and play

Insecurely attached cats
reluctant to explore even with Owner present
sit with Owner or hide in corner
do not explore when Owner leaves
may or may not solicit contact with Owner on return

Does your scent comfort your cat when you are not with her?


Researchers took videos of the sessions, recording how often cats vocalized, rubbed on their owners or the scent object, and how long they would stay close to the owner or scent object.

Researcher’s predictions


  • Cats would prefer their human caretaker over a scent stimulus alone.
  • Insecurely attached cats would interact with the scent object more than the securely attached cats.
  • Cats would be comforted by their owner’s scent.

what actually happened


  • Cats preferred their owners over the scent object – they vocalized less when owners were with them and rubbed on their owners
  • Insecure cats did spend more time close to the scent object than secure cats but only 4 of the 42 cats actually rubbed the object
  • The scent object did not seem to alleviate anxiety – cats vocalized just as much when alone with the scent object as they did when alone without the scent object.

Cats communicate in a large part by smell. They identify other cats and their owners by their scent and greet them by sniffing them and rubbing against them. To your cat, your t-shirt smells like you but does your scent comfort your cat the way your physical presence does? The answer is no according to this study.

Your t-shirt is not the same for your cat as a teddy bear that a young child clutches to face the world. The teddy bear is a “transitional object” that helps a human child become less dependent on his parents and learn to relate to other people.

Your cat is attached to you – not your t-shirt. It won’t hurt to leave the t-shirt at home when going to the vet or boarding facility.

Other Thoughts


 A cat’s territory where she feels safe is marked with her own scent. Providing your cat with a blanket from home with her scent might make her less anxious.

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

 

Subscribe

You’ve stopped by the pet shelter and are interviewing the cats for adoption. You’re looking to adopt an adult cat – you feel your life is just too hectic to take on a pair of kittens. There is an orange male cat who seems friendly and rubs your outstretched hand in greeting. He is simply charming!

You find a shelter volunteer for more information. She asks you how you feel about caring for a blind cat. You do a double-take – the cat moves confidently around his enclosure, then turns and approaches you.  Nothing about him makes you think he can’t see.

Blindness in cats can arise from a number of factors:

  • genetic condition present at birth
  • trauma to the eyes
  • cataracts due to aging or diabetes
  • detachment of the retina, resulting from high blood pressure, chronic kidney disease, or hyperthyroidism
  • infectious organisms, such as FeLV, FIV, can cause inflammation in the eye and lead to blindness.
  • untreated eye infections resulting from upper respiratory infections can also cause blindness

“keep an eye” on your cat’s eyes – see your vet if:


  • your cat is squinting
  • her third eyelids are swollen
  • her conjunctiva are red and swollen
  • there is discharge from her eyes – clear to greenish-yellow
  • her pupils are not the same size
  • she starts rubbing her eyes

Caring for a blind cat


Caring for a blind cat or cat who is gradually becoming blind is similar to  caring for a “sighted” cat. Blind cats and “sighted” cats have the same environmental and emotional needs.

Blind cats adapt quickly to their surroundings. How do they do it? They rely on their other senses – smell, touch, and hearing – to get around.

The blind cat’s superpowers


superpower #1 – smell


Cats live in a landscape of odors. Cats have two ways of detecting odors in their environment:

  • the cells lining the nose and nasal cavity
  • the vomeronasal organ or VNO in the roof of the mouth

In the VNO, there are 3 types of “receptor proteins”. These receptor proteins respond to chemicals such as odors. We know more about the V1R protein than the other two.

Cats have 30 genetic variants of the V1R protein. Genetic variants refer to changes in the DNA sequence that makes up a gene. More genetic variants of the V1R protein allow cats to detect a greater variety of scents than say, dogs, who have only 9 genetic variants of this receptor protein. 

Cats can associate certain odors/scents with a particular experience, place or other animal. For example, to a cat, another animal or person has a signature scent that the cat uses to identify that individual.

superpower #2 -TOUCH :THE WHISKER POSITIONING SYSTEM


Each whisker is embedded in a cluster of nerve endings located 3 x deeper in the skin than the surrounding hair follicles. Not only do whiskers alert your cat to the piece of furniture nearby, they alert him to changes in air currents, from say an open door or window.

Cats use their whiskers to navigate – whiskers help the cat pinpoint where she is relative to her surroundings – “can I fit behind this sofa?” Needless to say, a blind cat finds her whiskers crucial to getting around.

superpower #3 – hearing


Cats have one of broadest hearing ranges of all mammals. They are able to hear the high-pitched ultrasonic squeaks of mice and also the low-pitched tones of the human male voice.

Cats’ cone-shaped ears move independently of each other. Sounds will reach each ear at different times and allow the cat to pinpoint the source of the sound.

Watch as these blind cats track a bird.

CAT FRIENDLY HOMES FOR blind kitties


Setting up a cat-friendly home for a blind or partially blind cat is much the same as setting it up for a sighted cat. He will need multiple, separate litter boxes, feeding and water stations, and safe places to retreat to.

Your blind kitty will use his incredible sense of smell and ability to discriminate between scents, to navigate his environment. His hearing and whiskers will also alert him to the presence of other animals and objects. And just like any “sighted” cat, he should be introduced gradually to a new environment. (Yes, rearranging the furniture is a “new” environment.)

Alana Miller of Blind Cat Rescue & Sanctuary has some tips for caring for a blind cat:

  • Blind cats should only be indoor pets. Make sure there are no open pet doors, windows or other ways your cat could get outside. (A secure area like a catio can give your blind kitty a safe outdoor experience).
  • Make sure the house is safe.  Keep cleaning chemicals, power cords or other potential tripping hazards out of your cat’s reach.  Be aware of spaces he could explore and get stuck in like behind washer/dryers.
  • Stairs.  Make sure you’re with your cat the first few times she uses the stairs until you’re sure…she knows where they are and is able to navigate them.
  • Know where your blind cat is. He can’t see you and may not know he’s under your feet… you don’t want to step on him by accident.
  • Let your blind cat know that you are going to touch her. A blind cat can’t see your hand coming … she might startle when you touch her.  As you approach, make sure you rub your fingers together or make a gentle noise with your hand to alert her.

Whether you adopt a blind kitty or your older kitty has vision loss, remember your blind cat has the same needs as sighted cats. With some modifications, you can provide a safe and enriching environment for your blind cat.

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe

Moving can be hectic and stressful for both people and pets. When you move your cat, he is uprooted from his territory, a place where he feels safe and secure – where he can rest, has shelter, and is safe from predators. What do you need to consider when unloading the boxes and positioning the furniture?

Setting up a cat-friendly home can help reduce the stress of the move and help your cat quickly establish her new territory.

setting up a cat-friendly home


The American Association of Feline Practitioners (AAFP) list five things that make a healthy environment for a cat.

  1. Resources : food, water, litter box, shelter
  2. Safe access to resources
  3. Environment that respects the cat’s sense of smell: territory
  4. Human interaction: predictable
  5. Predatory behavior

Needs of Domestic cats

  1. If we organize these needs in a pyramid diagram, the lowest tier includes those needs essential to survival: food, water, and litter boxes.
  2. The next level ensures that these essential resources are available to each cat to use safely, without fear. We cat owners must provide multiple, separate feeding and watering stations and litter boxes.
  3. Another of the AAFP requirements is that the environment respects the cat’s sense of smell.  Such an environment is the cat’s territory. Cats will mark walls and furniture in the home with scents from glands in their faces and mark scratching posts with scents released when scratching. Your cat belongs to his territory.
  4. The final two tiers deal with how we interact with our cats and…
  5. Offering them an opportunity to exercise their hunting skills.

The first three tiers are ones that are physically affected by moving from one place to another.

  • Where do you locate litter boxes and feeding stations in your new home?
  • Where can you locate safe places for your cat to chill, nap and keep on an eye on the household?
  • How do you help your cat establish a territory and maintain the scent profile of the home?

I have recently moved from my townhome of 13 years into a 2 story, unattached house. Placing cat resources is a work still in progress – here is my “first cut”. Join me and take a look at the placement of my cats’ resources and the pros and cons of my choices. I hope you enjoy The Purrade of My Home!

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

 

Subscribe

Zelda gets a snack from a plastic cup

Feeling “gutsy”? “Butterflies” in your stomach? These are the signs that your brain and your gut are communicating with each other. There is constant “crosstalk” between these two organs.

The tiny microbes that call the gut their home form a community or “microbiome”.  Some of the ways this microbiome communicates with the brain are:

  1. Millions of neurons line the GI tract and signal the brain of changes in the microbiome.
  2. If the brain triggers the release of fight or flight hormones, the movement of the intestines and the content in them changes.
  3. The GI microbiome affects the development of neural systems that control stress.
  4. Gut microbes can affect immune cells in the GI tract. These changes are picked up the neurons in the walls of the GI tract.
  5. Gut microbes produce short chain fatty acids and neurotransmitters that directly affect the brain.

Our cats are also mammals with a similar gut-brain communication. Imbalances in your cat’s GI microbiome can result not only in diarrhea but also can affect mood, anxiety, and conditions such as dermatitis and inflammatory bowel disease (IBD).

How and what we FEED our cats affects the microbiomes in their guts. As we learn more about how the gut talks to the brain, we are finding specific ways to influence these microbiomes through diet. This gives cat owners a low-stress way of managing their cats’ health by feeding them.

probiotics for cats


A microbe is microorganism, usually a bacterium, that causes disease or fermentation. We can influence the GI microbiome through prebiotics, probiotics and synbiotics.

  • Prebiotics refer to indigestible fiber that feeds the “good” (beneficial) bacteria in the GI tract.
  • Probiotics are live bacteria or yeast that are beneficial to the health of the host – human, cat, dog… – who consumes them.
  • Synbiotics refer to the combination of pre- and probiotics – fiber and bacteria/yeast.

The bacteria/yeast can be freeze-dried and packaged as a supplement. The bacteria remain in a “dormant” state until they are exposed to the right conditions of acidity, temperature and water and become active and “live” once more.

DIETARY SUPPLEMENTS FOR YOUR CAT’S GI MICROBIOME


Some of the more common probiotics for cats include Fortiflora and Proviable.

Fortiflora is manufactured by Nestlé-Purina. The supplement contains the bacterium E. faecium SF68 and has been shown to reduce viral and antibiotic-induced diarrhea in cats. A newer version of this supplement, Fortiflora SA, includes the prebiotic psyllium, resulting in an improved resolution of diarrhea. Fortiflora has also been studied with regard to reducing side effects from feline herpes virus.  Fortiflora is available over the counter; Fortiflora SA is available through your veterinarian.

Nutramax Proviable is another powdered synbiotic for cats found to be effective in  resolving feline diarrhea . Proviable contains seven strains of bacteria: E faecium,
Streptococcus (Enterococcus) thermophilus, Lactobacillus acidophilus, L bulgaricus, L casei, Bifidobacterium bifidum, and L plantarum. Proviable is available over the counter.

Another probiotic on the market features the bacterium Bifidobacterium longum, that has been shown to help cats and dogs stay calm. Calming Care is a Purina product available over the counter.

a diet to maintain your cat’s gi biome


Hill’s Pet Nutrition has developed a canned and dry diet for cats designed to maintain a healthy gastrointestinal microbiome. The food incorporates a blend of prebiotics designed to encourage the growth of “good” bacteria in your cat’s intestines.

Research on cats at the Hills Pet Nutrition Center showed that feeding the “biome” diet increased the “good” bacteria and post-biotics – those short chain fatty acids (SCFA) from fiber fermentation. SCFA are thought to regulate processes in the Central Nervous System and ultimately shape behavior and cognitive function.

MORE ABOUT probiotics for cats


A company called Animal Biome offers to tailor the use of probiotics to the individual cat or dog. The company cites problems with the “one size fits all” approach using probiotics to manage the microbiomes. The composition of the your pet’s microbiome is identified using DNA sequencing. Supplement therapies are available to restore your cat’s microbiome balance.
Other companies offering similar services include Nom Nom and MIDOG.

Probiotics provide us with additional ways to manage not only GI upset but possibly anxiety, skin issues and IBD in our cats. More research should identify additional probiotics for cats that target specific conditions.

SHOULD I USE PROBIOTICS/SYNBIOTICS FOR MY CAT?


For an occasional bout of diarrhea, a probiotic such as Proviable or Fortiflora can be effective. If the diarrhea persists or recurs, see your vet.

Prebiotics, probiotics, and synbiotics are dietary supplements and, as such, are not regulated by the Food and Drug Administration (FDA). Many dietary supplements claim to treat medical conditions and are basically unapproved drugs.

a word to the wise…

Stick with the supplements that have some clinical studies supporting their use. The supplements mentioned in this post are used in many veterinary clinics, have substantial amount of research supporting their development, and are safe to use with your cat.

postscript…

I am moving into a new home and I am concerned about how the process of moving will affect The Feline Purrspective team. As things are getting boxed up, some of my cats were more clingy; my ex-feral cat seemed edgy and paced more. I decided to give the Calming Care supplement a try. So far, the kitties do seem calmer after about a week on the supplement, although, maybe they are just getting used to the moving boxes!cat in moving box

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe

Sphynx cat
Some consider Sphynx cats to be “hypoallergenic”.

Did you know that about 1 in 3 people in the United States are allergic to cats and dogs? Those of us who are mildly “allergic” are familiar with the sneezing and runny nose that may come with handling our pets. More severe reactions may include signs of asthma, such as wheezing and difficulty breathing.

What makes us allergic to cats?


A protein called Fel d1 is the primary allergen in cats, accounting for about 95% of the allergy responses in adults sensitive to cats.  Fel d1 is mainly produced in the cat’s salivary and sebaceous glands and is spread through the cat’s fur as he grooms. As he sheds fur and skin (dander), Fel d1 is distributed throughout your home.  Breathing in dander or having contact with it can trigger an allergic reaction in a sensitive person.

Fel d1 is light, easily airborne and can be found just about everywhere, even in pet-free homes and institutions such as schools. Usually these levels are low and do not impact people in general.

Reducing Fel d1 in your home


Being allergic to cats does not always mean you have to re-home your feline friend. What you need to do is reduce the amount of Fel d1 in your home. Here are some things you can do:

  • Fur tends to “stick” more to fabrics – vacuum upholstery and carpets frequently.
  • Consider switching out carpet for hardwood or vinyl floors.
  • Use covers that you can launder on sofas and upholstered chairs.
  • HEPA air filters and HEPA vacuum filters can also help.
  • Clean regularly and frequently.
  • Open the windows when you can.

What about bathing my cat?


Bathing your cat does reduce the amount of Fel d1. Researchers do not agree on how long the beneficial effects last – one study found that washing cats significantly reduced the airborne amount of allergen but the levels of Fel d1 returned to pre-wash levels within the week. Many cats do not like to be bathed – a weekly bath may become a weekly battle.

Purina has developed a waterless shampoo for reducing Fel d1 which does not require immersing the cat in a tub or hosing her down. This may be easier to use if you want to try bathing your cat. The shampoo is said to reduce allergens 33% in 24 hours .

Chickens and Eggs – can they keep us from being allergic to cats?


Chickens produce antibodies against environmental antigens that they can transfer into their eggs and give their chicks immunity against these antigens. Researchers at Nestle-Purina were able to develop an “anti-Fel d1” antibody by exposing hens to Fel d1. This “ anti-Fel d1” reduces the amount of active Fel d1 in the cat’s saliva when the cat eats food containing the “anti- Fel d1” egg product. Purina “Live Clear” is now commercially available after 10 years of research and studies. It has been shown to reduce active Fel d1 by an average of 47% after 3 weeks of feeding.

“Hypoallergenic” cats


All cats produce Fel d1 – some produce more than others. Intact male cats produce more Fel d1 than female cats and neutered and spayed cats.  Older cats may produce less Fel d1 than younger ones.

Some cat breeds are known for not producing much Fel d1. These cats typically do not shed much. It is thought that the reduction in the amount of hair reduces the amount of Fel d1 in the environment. On the other hand, these cats still groom and spread dander that has sebaceous secretions containing Fel d1.  Among breeds thought to produce less Fel d1 are:

  • Sphynx
  • Cornish and Devon Rex
  • Siberian cats (may have a genetic mutation that causes them to release less Fel d1)
  • Russian blue
  • Balinese
  • Peterbald
Sphynx cat doll
A doll based on a Sphynx cat!

 

What does the future hold for those of us  who are allergic to cats?


The Crisper Cat: A Virginia based company, Indoor Biotechnologies, is looking into removing the Fel d1 gene from cat cells in order to develop a truly “hypoallergenic” cat.

A Vaccine to Make Cats less Allergenic: Saiba Animal Health is developing a vaccine for cats that will induce “anti-Fel d1” antibodies to form in vaccinated cats.  These antibodies will bind Fel d1 and will effectively neutralize its allergenic effect on humans.

Want to keep up with the world of cats? Subscribe to The Feline Purrspective!

Subscribe