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Washington ,Amerika Syarikat ,sekumpulan doktor pakar yang sedang melakukan pembedahan membuang tumor otak pesakit wanita berasa amat terkejut selepas mereka mendapati terdapat seekor cacing yang keluar bersama dengan tumor lebihan dari pesakit itu.Pesakit yang merupakan warga Amerika Syarikat yang berasal dari Arizona ,Rosemary Alvarez menjalani pembedahan membuang tumor otak selepas mengalami kesakitan pada tangan dan penglihatannya menjadi kabur.
Selepas melakukan ujian imbasan X-Ray ,doktor pakar memutuskan untuk melakukan kerja-kerja pembedahan tetapi terkejut selepas mendapati seekor cacing telah berjaya menembusi otak Alvarez.Para doktor juga berpendapat kehadiran cacing itu, besar kemungkinan adalah disebabkan oleh kesan daripada makan daging babi yang tidak masak dan banyak atau mungkin disebabkan oleh sebaran kotoran dari individu yang tidak mencuci tangan selepas memegang najis dan selepas menggunakan tandas. Alavarez yang dijangka pulih sepenuhnya selepas pembedahan itu berharap agar orang ramai akan mengambil iktibar dari pengalamannya itu.[10] (Sumber diperolehi dari akhbar Kosmo! yang diterbitkan di Malaysia pada hari Sabtu,22 November 2008) |
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Mad cow disease, or bovine spongiform encephalopathy (BSE), is a transmissible, slowly progressive, degenerative, and fatal disease affecting the central nervous system of adult cattle. The U.S. Department of Agriculture (USDA) has tested hundreds of thousands of cattle for BSE.
Researchers believe that the infectious agent that causes mad cow disease is an abnormal version of a protein normally found on cell surfaces, called a prion. For reasons still unknown, this protein becomes altered and destroys nervous system tissue -- the brain and spinal cord.
Does Cooking Food Kill the Prion That Causes Mad Cow Disease?
Common methods to eliminate disease-causing organisms in food, like heat, do not affect prions. Also, prions only seem to live in nervous system tissue.
Does Mad Cow Disease Affect Humans?
A human version of mad cow disease called variant Creutzfeldt-Jakob disease (vCJD) is believed to be caused by eating beef products contaminated with central nervous system tissue, such as brain and spinal cord, from cattle infected with mad cow disease. For this reason, the USDA requires that all brain and spinal cord materials be removed from high-risk cattle -- older cattle, animals that are unable to walk, and any animal that shows any signs of a neurological problem. These cow products do not enter the U.S. food supply. The USDA believes this practice effectively safeguards U.S. public health from vCJD.
According to the CDC, four deaths from vCJD have been identified in the U.S. However, it's believed those cases were caused by consumption of meat outside the U.S.
It is important to clarify the differences between variant CJD and another form of the disease, referred to as classic or sporadic CJD. Classic CJD has no known cause and occurs each year at a rate of one to two cases per 1 million people throughout the world, including in the U.S. and countries where mad cow disease has never occurred. It is not linked to eating nerve tissue from mad cow disease-affected cattle -- both vegetarians and meat eaters have died from classic CJD. CJD most commonly affects people over 65 and is usually fatal within six months from onset of symptoms.
http://www.webmd.com/brain/mad-cow-disease-basics#1 |
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Your transplant organs will soon come from a pig
In startling medical research first, doctors announce success in chimeric options for organ growth.
BY EUNICE KILONZO
Daily Nation-6 Feb 2017
Scientists have ushered the world into a new biological era by developing an organism that is part-human, part-pig with the aim of growing human organs in it for transplant patients. This means it could soon be possible to use pigs to grow organs that are not only similar to humans’, but also of the appropriate size.
Creation of the hybrid animal, also known as a chimera as it contains cells from two different species, involved injecting human stem cells into pig embryos that were in early development into surrogate sows and growing them up to four weeks old. Shortly after, the embryos were terminated before any human-animal mixture could form.
The research on the human-pig hybrid, funded entirely by private donors, also raises the possibility of viruses jumping from one species to the next as well as the likelihood that, at some point, there might be mixing of human and animal tissues, leading to hybrid pigs with brains that are more human and, by extension, human intelligence.
The team of researchers from the Salk Institute of Biological Studies’ Gene Expression Laboratory in the US tested the safety and effectiveness of the study, and discovered that some cells in the embryos were starting to specialise and had the precursors of human organs, including the heart and liver. However, they contained a small amount of human cells, about one in every 100,000 pig cells.
That low percentage of human cells is the only remaining challenge in the quest to grow human organs in animals as such organs could be rejected by human bodies because of the high percentage of pig tissue.
THE INNOVATION
The innovation — in which human stem cells are introduced into a non-human organism, survive, and grow inside the uterus of the host animal — promises to revolutionise organ transplantation at a time when human organs are hard to come by, resulting in long transplant waiting lists.
The study, published January 26 in the science journal Cell, however cautions that the research is at its infancy stage and might take a while to actually live up to its expectations of providing functional human organs.
Nevertheless, it has stroked controversy, particularly within religious circles, as critics question why scientists want to “play God” without a clear understanding of where the animal ends and when the human being begins.
Reverend Tadeusz Pacholczyk, director of education at the US National Catholic Bioethics Center, last year questioned the ethics of the cause, saying there was need to “reflect carefully on the morally appropriate use of these novel and powerful technologies, so that human dignity will not be harmed, subjugated, or misappropriated in any way”.
But science, on the other hand, argues that this is a novel path towards advanced bio-engineering that, if conducted within the accepted ethical standards, will not only address organ shortage, but also help researchers study early embryo development and organ formation.
'INTERESTING BREAKTHROUGH'
Dr Marianne Mureithi of the University of Nairobi’s Department of Medical Microbiology said the study is an “interesting breakthrough”, but warned that “chimeric contribution is random and the resulting chimera could have ‘human’ tissues strewn all over the animal”.
She said if this new technology is ultimately developed and verified, diseased organs ravaged by non-communicable ailments such cancers or autoimmune disorders could be replaced. This knowledge would also set the stage for stem-cell and gene-editing technologies which will generate genetically-matched human tissues and organs.
The research began on the foundation of a prior similar study on mice and rats in which researchers were able to grow a mouse pancreas in a rat. After that, islets — tissue from the pancreases — were transplanted into mice with diabetes, helping control the mice’s blood sugar levels.
The research on the human-pig hybrid, funded entirely by private donors, also raises the possibility of viruses jumping from one species to the next as well as the likelihood that, at some point, there might be mixing of human and animal tissues, leading to hybrid pigs with brains that are more human and, by extension, human intelligence.
Another untoward outcome would be if human cells should come to compose the pig’s reproductive tissues. Few people want to see what might result from the union between a pig with human sperm and a sow with human eggs.
http://www.nation.co.ke/health/Your-transplant-organs-will-soon-come-from-a-pig/3476990-3801920-91qxoe/
adakah penganut agama pak arab memilih syurga atau organ babi?
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Aku masih tertanya tanya. Babi ade bulu ke?
Kalau berus cat yg besar tu, bulu tu panjang. Tang mana bulu babi yg panjang tu. |
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kat facebook siap puji puji...baik peniaga ni..contohilah mereka
kat forum...peniaga tu troll (sindir) org islam dan melayu |
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Kelakar pulak berus pon ada tak halal. |
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drivethru replied at 11-2-2017 06:17 AM
Aku masih tertanya tanya. Babi ade bulu ke?
Kalau berus cat yg besar tu, bulu tu panjang. Tang ma ...
Wild boar ..leh gugel |
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penmarker replied at 11-2-2017 10:38 AM
Wild boar ..leh gugel
Aah tertanya jgk tang mana bulu babinya tu rasanya babi xda bulu kan bila tgk gambar ni baru dpt jwpn lupa lak tang boar tu. |
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zawara replied at 11-2-2017 10:54 AM
Berus chat tu apa
Berus tu ada account whatsapp dan wechat. Tu namanya berus chat. |
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drivethru replied at 11-2-2017 06:17 AM
Aku masih tertanya tanya. Babi ade bulu ke?
Kalau berus cat yg besar tu, bulu tu panjang. Tang ma ...
bulu babi hutan kot lebat bulunya |
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GuaAnakMelaka replied at 11-2-2017 04:26 AM
berus hijau tu kgemaran sy. tiap kli nak mngecat, cina kdai hardware mmg rekemen berus tu. lembut je siap main2 berus kat tngan sblm guna. rupanya bulu babi patut lembut semacam jah |
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penmarker replied at 11-2-2017 10:38 AM
Wild boar ..leh gugel
Ok. Dah terjawap.
Kalau babi ulu langat, satu kandang pun belum tentu dapat hasilkan satu berus cat. |
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Makin lama Makin melampau.. inilah yg jd klu orang atas an yg berkuasa tutup dua2 mata... |
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bole je kan guna berus tu..ke mmg x bole? |
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