Archive for the 'Rh negative blood origin' Category

02
Sep
13

Inter-Species Blood Transfusion

You might have heard about the recent (August 2013) blood transfusion between a cat and a dog which took place in New Zealand.  This is the link to the story as reported by Sky news:  http://news.sky.com/story/1131354/dog-saves-cat-in-rare-blood-transfusion-op

The article begins:

“Macy the Labrador stepped in when Rory the ginger tom became ill after eating rat poison.

“Vet Kate Heller, of Tauranga in New Zealand, said the feeble feline was fading fast and needed an immediate transfusion to survive.

“She searched for a suitable donor cat but could not find one quickly enough.”

The story continues that the Labrador was used as a blood donor and, happily, the cat is doing fine.

What really got my interest were the last three paragraphs of the article:

“Interspecies transfusion, as acts like a dog giving a cat blood are called, has only been successfully carried out a handful of times.

“According to experts, cats do not have antibodies that reject dogs’ blood, so a transfusion may buy enough time for the cat to regenerate its own red blood cells.

“Only one transfusion can be done because a second dose of dog blood would be the death of the cat.”

I couldn’t help but think of the similarity of an Rh- woman giving birth to a Rh+ child.  The first time, there is no problem as there are no antibodies present.  But without Rhogam having been administered, there would be antibodies present during the second pregnancy.

Inter-species.

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26
Sep
12

Rh Negative Blood Origins Revisited

A few days ago I received the following comment to a post that I made back on October 29, 2009 regarding possible origins of Rh Negative blood. Within this post I made the statement that Rh Negative blood was believed to have been caused by some sort of mutation that occurred many thousands of years ago. This explanation was by far the most common (and admittedly vague) explanation for the origin of Rh negative blood at the time.

This is the comment I received a few days ago:

“A mutation? I have a bachelor of archaeology (la trobe) so I can shed a little light on this. The O RH – blood type was the most common blood type of the earliest modern human homo sapiens. The blood types AB and RH positive factors were introduced during the Human – Neanderthal divergence period. It is the blood types AB that are foreign to the original modern humans. RH negative is the blood type of the original humans. After statistical analysis of the blood groups of the earliest modern human homo sapien communities they have found Type O RH – negative as the dominant factor. These are communities that predate divergence and were free of neanderthal and other early hominid contamination. Basically concluding that our earliest human ancestors were uncontaminated by the rhesus factor. It is not a reptillian mutation, but the original blood type of the purest human ancestors. It is likely a contributing reason for the O RH – negative blood type being the universal donor.”

More and more sites can be found on the internet today regarding Rh Negative blood as the original blood factor. The following site is extremely interesting:

http://www.aoi.com.au/bcw/neanderbasque.htm

Is the truth to be found on the internet, or are we being fed delibrate mistruths? Whatever the case, this article on the Basques is definitely worth reading.