z****t
发帖数: 106 | 1 Study Links Cat Litter Box to Increased Suicide Risk
By SUSAN DONALDSON JAMES | Good Morning America
A common parasite that can lurk in the cat litter box may cause undetected
brain changes in women that make them more prone to suicide, according to an
international study.
Scientists have long known that pregnant women infected with the toxoplasma
gondii parasite -- spread through cat feces, undercooked meat or unwashed
vegetables -- could risk still birth or brain damage if transmitted to an
unborn infant.
But a new study of more than 45,000 women in Denmark shows changes in their
own brains after being infected by the common parasite.
The study, authored by University of Maryland School of Medicine
psychiatrist and suicide neuroimmunology expert Dr. Teodor T. Postolache,
was published online today in the Archives of General Psychiatry.
The study found that women infected with T. gondii were one and a half times
more likely to attempt suicide than those who were not infected. As the
level of antibodies in the blood rose, so did the suicide risk. The relative
risk was even higher for violent suicide attempts.
"We can't say with certainty that T. gondii caused the women to try to kill
themselves, but we did find a predictive association between the infection
and suicide attempts later in life that warrants additional studies," said
Postolache, who is director of the university's Mood and Anxiety Program and
is a senior consultant on suicide prevention.
"There is still a lot we don't know," he told ABCNews.com. "We need a larger
cohort and need a better understanding of the vulnerabilities that certain
people have to the parasite."
Suicide is a global public health problem. An estimated 10 million attempt
suicide and 1 million are successful, according to Postlache's work.
More than 60 million men, women, and children in the United States carry the
toxoplasma parasite, according to the Centers for Disease Control and
Prevention, but very few have symptoms.
Toxoplasmosis is considered one of the "neglected parasitic infections," a
group of five parasitic diseases that have been targeted by CDC for public
health action.
About one-third of the world is exposed to T. gondii, and most never
experience symptoms and therefore don't know they have been infected. When
humans ingest the parasite, the organism spreads from the intestine to the
muscles and the brain.
Previous research on rodents shows that the parasite can reside in multiple
brain structures, including the amygdala and the prefrontal cortex, which
are responsible for emotional and behavioral regulation.
Rat Study Showed Parasite Changes the Brain
A 2011 study on rats infected by the parasite showed that their fear of cats
disappeared. Instead, the parts of their brains associated with sexual
arousal were activated. Researchers theorized that the mind-manipulating T.
gondii ensures that the parasite will reach and reproduce in the gut of a
cat, which it depends upon for its survival.
"The parasite does actually alter the brain of its host," Stanford
University study co-author Patrick House told ABCNews.com last year. "The
fact that a parasite can get into an organism, target its brain, stay there
without killing the host and alter the circuitry of the brain -- we've seen
this is insects and fungi, but it's the first time we've seen it in a
mammalian host."
It was this and other research that led Postolache to investigate the
relationship between the parasite and biological changes in the brain that
might lead to suicide. He was also intrigued by studies on allergies and
research that showed a connection between toxoplasmosis and schizophrenia.
"I was interested in the neuron aspects of suicide and intrigued by low-
grade activation in patients who attempted suicide, as well as victims," he
said. "Other studies had looked at the brain and suicide risk and
impulsivity. The next question was, what could be the triggers that
perpetuate this level of heightened activation in the brain?"
Postolache collaborated with Danish, German and Swedish researchers, using
the Danish Cause of Death Register, which logs the causes of all deaths,
including suicide. The Danish National Hospital Register was also a source
of medical histories on those subjects.
They analyzed data from women who gave birth between 1992 and 1995 and whose
babies were screened for T. gondii antibodies. It takes three months for
antibodies to develop in babies, so when they were present, it meant their
mothers had been infected.
The scientists then cross-checked the death registry to see if these women
later killed themselves. They used psychiatric records to rule out women
with histories of mental illness.
Postolache said there were limitations to the study and further research is
needed, particularly with a larger subject group.
Dr. J. John Mann, a psychiatrist from Columbia University, said Postolache's
research mirrors his work in the field of suicidal behavior.
"The relationship of the brain to the immune system is more complex than it
may appear," said Mann. "The brain regulates the stress response system,
which impacts the immune response."
Scientists already know that steroids like cortisone can affect the immune
response. Some antibodies whose goal is to kill off cancer can also affect
the brain. Oftentimes the first symptom of pancreatic cancer is depression,
he said.
Research also shows that streptococcus bacteria can trigger obsessive-
compulsive disorder (OCD) in some children. Sydenham's chorea, the loss of
motor control that can occur after acute rheumatic fever, may also be an
immune response affecting the brain, according to Mann.
Maryland researcher Postolache suspects that some individuals have a
predisposition to these neurological changes.
He speculates that the parasite may disrupt neurological pathways in those
who are vulnerable, so that projections of fear and depression from the
amygdala are not tempered or controlled by the "braking" function of the
prefrontal cortex.
But, Postolache warns that even if a direct cause were found, no antibiotics
for T. gondii yet exist and it could be a decade before effective vaccines
or other agents that might stop the neurological damage are developed.
Right now, the most effective weapon against T. gondii is education about
handwashing, the proper cooking of food, and not using a knife exposed to
raw meat on cooked meat.
He also cautions against trendy food production techniques that let animals
roam free. "The risk of infection could go up," he said, "and increase the
rate of toxoplasmosis." |
m**u
发帖数: 6829 | 2 这些耸人听闻的研究多了，什么东西都有危险，喝水都能毒死人。如果都听的话，你就
什么也不能吃不能喝，直接死了比较干净。 |
x********u
发帖数: 15396 | 3 i have written several papers too
1) Study Links Undercooked Meat to Increased Suicide Risk
2) Study Links Unwashed Vegetables to Increased Suicide Risk
3) Study Links Cooking to Increased Suicide Risk
4) Study Links Gardening to Increased Suicide Risk
5) .... |
M*****a
发帖数: 7122 | 4 lots of pathogens change the brain and cause people to attempt suicide.
Suicide is the result of complex high-level cognitive interactions, to
associate it with a one-dimensional factor is absurd! highly disagree with
studies that may cause mass hysteria while proposing no solutions to the
problem. |
p*****t
发帖数: 3693 | 5 网人有人评论说这些自杀其实都是他杀，猫奴被主子干掉，然后做成自杀的假象...... |
b*****e
发帖数: 53215 | 6 是不是英国科学家？
an
toxoplasma
their
【在 z****t 的大作中提到】
: Study Links Cat Litter Box to Increased Suicide Risk
: By SUSAN DONALDSON JAMES | Good Morning America
: A common parasite that can lurk in the cat litter box may cause undetected
: brain changes in women that make them more prone to suicide, according to an
: international study.
: Scientists have long known that pregnant women infected with the toxoplasma
: gondii parasite -- spread through cat feces, undercooked meat or unwashed
: vegetables -- could risk still birth or brain damage if transmitted to an
: unborn infant.
: But a new study of more than 45,000 women in Denmark shows changes in their
|
b********i
发帖数: 10335 | 7 我还以为这个楼是零回复呢。没想到这么多人回帖。。。
an
toxoplasma
their
【在 z****t 的大作中提到】
: Study Links Cat Litter Box to Increased Suicide Risk
: By SUSAN DONALDSON JAMES | Good Morning America
: A common parasite that can lurk in the cat litter box may cause undetected
: brain changes in women that make them more prone to suicide, according to an
: international study.
: Scientists have long known that pregnant women infected with the toxoplasma
: gondii parasite -- spread through cat feces, undercooked meat or unwashed
: vegetables -- could risk still birth or brain damage if transmitted to an
: unborn infant.
: But a new study of more than 45,000 women in Denmark shows changes in their
|
M*****a
发帖数: 7122 | 8 我觉得有必要让更多人知道，多数时候media outlets are completely ignorant
about science and medicine, 这些电视上上蹿下跳的科学家多数为了fame而不是
service to public health。更糟糕的是journalist说什么观众就信什么，很少真正有
人去研究下是不是这么回事。
【在 b********i 的大作中提到】
: 我还以为这个楼是零回复呢。没想到这么多人回帖。。。
:
: an
: toxoplasma
: their
|
b********i
发帖数: 10335 | 9 嗯。也是。
这个世上不动脑子的人还是多数。
【在 M*****a 的大作中提到】
: 我觉得有必要让更多人知道，多数时候media outlets are completely ignorant
: about science and medicine, 这些电视上上蹿下跳的科学家多数为了fame而不是
: service to public health。更糟糕的是journalist说什么观众就信什么，很少真正有
: 人去研究下是不是这么回事。
|
m*******g
发帖数: 7050 | 10 本着科学的严谨态度，我要提几个问题
1. 有没有证据证明，cat litter box有更高的几率传播T. gondii？如果没有证据，那
就是说，任何东西的传播几率都是一样的，那你还着急个p
2. 有没有证据说明，传播的媒介是什么？如果媒介是因为不干净的手......那跟cat
litter box又有什么关系？
3. 有没有比较数据证明，T. gondii引发的精神疾病比其它感染要高？说不定发烧引起
的精神疾病是200%？谁不发个烧什么的，那你还着急个p
其它各种，不一一列举
作者的论证手段是：cat litter box会携带细菌 -- 细菌通过媒介传播T. gondii --T.
gondii会有后遗症 -- 后遗症会引发精神疾病。所以cat litter box会引发精神疾病
那是大脑有多大问题的人才能进行那样无厘头的论证啊～～～ |
|
|
m*******u
发帖数: 6052 | |
m**n
发帖数: 9010 | 12 研究寄生虫对人体的影响不是很正常的么? 至于题目是记者加的而已.
【在 m*******u 的大作中提到】
: 居然还有研究这个的啊？
|
S*P
发帖数: 7575 | |
m**n
发帖数: 9010 | 14 生物医学去研究某种已知可能会感染人脑部的寄生虫,
对人类某些行为的影响, 难道很特别或者很冷门?
这不是个完全正常的研究么?
【在 S*P 的大作中提到】
: 这只能说明生物医学研究真的到瓶颈期了
|
R******d
发帖数: 5739 | 15 no, this is a typical pathogen study to protect you.
http://en.wikipedia.org/wiki/Toxoplasma_gondii
as a pet owner, it is your own decision to evaluate the risk and prevention.
the purpose of the study is for better understanding of this pathogen and
eventually benefit you. it is your choice if you choose to be ignorant and
take knowledge in different direction, but do not blame the scientists.
besides, I don't see how the study here has anything to say about medical
science at the bottleneck, it is just a typical study, maybe because cat
being the primary host for the parasite.
【在 S*P 的大作中提到】
: 这只能说明生物医学研究真的到瓶颈期了
|
R******d
发帖数: 5739 | 16 now this is interesting,
quote
-------------
T. gondii infections have the ability to change the behavior of rats and
mice, making them drawn to, rather than fearful of, the scent of cats. This
effect is advantageous to the parasite, which will be able to sexually
reproduce if its host is eaten by a cat.[12] The infection is widespread in
the brain, with more cysts targeting the parts of the brain corresponding to
fear. The widespread nature of the infection causes many previously
unnoticed symptoms in the rats.[13]
Studies have also shown behavioral changes in humans, including lower
reaction times and a sixfold increased risk of traffic accidents among
infected, RhD-negative males,[14] as well as links to schizophrenia
including hallucinations and reckless behavior. Recent epidemiologic studies
by Stanley Medical Research Institute and Johns Hopkins University Medical
Center indicate that infectious agents may contribute to some cases of
schizophrenia.[15][16] A study of 191 young women in 1999 reported higher
intelligence and lower guilt proneness in Toxoplasma-positive subjects.[17]
The prevalence of human infection by Toxoplasma varies greatly between
countries. Factors that influence infection rates include diet (prevalence
is possibly higher where there is a preference for less-cooked meat) and
proximity to cats.[18]
The standard treatment for toxoplasmosis is pyrimethamine, but most healthy
people infected with T. gondii require no medical intervention.[19]
-------------------------------------
you will love your cat no matter what this the result of the study is. now
you know the risk and know how to best prevent it.
prevention.
and
and
【在 R******d 的大作中提到】
: no, this is a typical pathogen study to protect you.
: http://en.wikipedia.org/wiki/Toxoplasma_gondii
: as a pet owner, it is your own decision to evaluate the risk and prevention.
: the purpose of the study is for better understanding of this pathogen and
: eventually benefit you. it is your choice if you choose to be ignorant and
: take knowledge in different direction, but do not blame the scientists.
: besides, I don't see how the study here has anything to say about medical
: science at the bottleneck, it is just a typical study, maybe because cat
: being the primary host for the parasite.
|
S*P
发帖数: 7575 | 17 So it is suggested that cat owners or anybody had unwashed vegetables/
uncooked meat to take pyrimethamine - that is not quite practical. how does
one know (s)he is infected? when is the best time to take the medicine?
I am not denying this is not a typical study. But a typical study doesn't
always mean an instructive study.
prevention.
and
and
【在 R******d 的大作中提到】
: no, this is a typical pathogen study to protect you.
: http://en.wikipedia.org/wiki/Toxoplasma_gondii
: as a pet owner, it is your own decision to evaluate the risk and prevention.
: the purpose of the study is for better understanding of this pathogen and
: eventually benefit you. it is your choice if you choose to be ignorant and
: take knowledge in different direction, but do not blame the scientists.
: besides, I don't see how the study here has anything to say about medical
: science at the bottleneck, it is just a typical study, maybe because cat
: being the primary host for the parasite.
|
N******t
发帖数: 16051 | 18 有意思有意思，会改变寄主思维的病菌太酷了，就像狂犬病毒靠引发寄主咬人来传播一样
楼顶的文章除了中文标题比较坑爹以外，就是一个正常的新闻报导关于一个正常的科学
研究，大家没必要一听到这种话题就变得特别defensive，我真心觉得很有趣，谢谢lz
和ragnorod贴出来
This
in
to
【在 R******d 的大作中提到】
: now this is interesting,
: quote
: -------------
: T. gondii infections have the ability to change the behavior of rats and
: mice, making them drawn to, rather than fearful of, the scent of cats. This
: effect is advantageous to the parasite, which will be able to sexually
: reproduce if its host is eaten by a cat.[12] The infection is widespread in
: the brain, with more cysts targeting the parts of the brain corresponding to
: fear. The widespread nature of the infection causes many previously
: unnoticed symptoms in the rats.[13]
|
N******t
发帖数: 16051 | 19 基础研究都不instructive但很有意思。。。instructive的临床研究都很枯燥。。。//
做基础研究的人飘过
does
【在 S*P 的大作中提到】
: So it is suggested that cat owners or anybody had unwashed vegetables/
: uncooked meat to take pyrimethamine - that is not quite practical. how does
: one know (s)he is infected? when is the best time to take the medicine?
: I am not denying this is not a typical study. But a typical study doesn't
: always mean an instructive study.
:
: prevention.
: and
: and
|
S*P
发帖数: 7575 | 20 Admire做基础研究的科学家 :)
//
【在 N******t 的大作中提到】
: 基础研究都不instructive但很有意思。。。instructive的临床研究都很枯燥。。。//
: 做基础研究的人飘过
:
: does
|
|
|
M*****a
发帖数: 7122 | 21 天，雅虎的回帖笑得我肚子疼
Probably the most accurate statement in this article is, "We can't say with
certainty that...."
Only 1 in 10 people who try to commit suicide are successful? We need to
have a better success rate.
Somewhere a dog is typing "LMFAO".....
The study was paid for by a wealthy German Shepherd.
Bottom line: Don't eat the cat litter.
Who needs a litter box when your neighbor has a garden?
"Oftentimes the first symptom of pancreatic cancer is depression" . well duh
, its because you just heard you got cancer.
So....They're saying that it's still safe to eat dog crap?
Actually when I was a youngster I had cat litter box duty in our house and I
never had thoughts of suicide, I had thoughts about killing the family cat
but never suicide. |
R******d
发帖数: 5739 | 22 actually this is probably not the only case in the nature.
http://www.nytimes.com/2005/09/06/science/06hopp.html
but I think human biology is so much more complicated that it is very
difficult to compromise a human brain, unless a high dose of drug
一样
lz
【在 N******t 的大作中提到】
: 有意思有意思，会改变寄主思维的病菌太酷了，就像狂犬病毒靠引发寄主咬人来传播一样
: 楼顶的文章除了中文标题比较坑爹以外，就是一个正常的新闻报导关于一个正常的科学
: 研究，大家没必要一听到这种话题就变得特别defensive，我真心觉得很有趣，谢谢lz
: 和ragnorod贴出来
:
: This
: in
: to
|
t*****e
发帖数: 3544 | |
l*****g
发帖数: 996 | 24 这个杂志是精神病里最高级的，一般只发特别有意义的文章。我本来不是学这个的，不
过在这个领域里工作了两年。个人感觉psychiatry里好多人基本就是看数据发文章，这
种大型跟踪性调查，只要是收集了的数据，这些领域的人东拼西凑都能出篇文章。像这
种有争议性的东西，就更不用说的了。
不过养猫的自杀率比不养的无非才高出1点5倍。本来自杀率就很低很低，这个增加的几
率，又是有这么多人参加的study，感觉需要有更多的重复study才能有信度。
an
toxoplasma
their
【在 z****t 的大作中提到】
: Study Links Cat Litter Box to Increased Suicide Risk
: By SUSAN DONALDSON JAMES | Good Morning America
: A common parasite that can lurk in the cat litter box may cause undetected
: brain changes in women that make them more prone to suicide, according to an
: international study.
: Scientists have long known that pregnant women infected with the toxoplasma
: gondii parasite -- spread through cat feces, undercooked meat or unwashed
: vegetables -- could risk still birth or brain damage if transmitted to an
: unborn infant.
: But a new study of more than 45,000 women in Denmark shows changes in their
|
l*****g
发帖数: 996 | 25 看评论这个study好像是通过丹麦生过孩子的妇女的人口记录里查的T.gondii的抗体，
这个比较直接的。
不过就算这是真的，也只是一个小小的因素啦。不过才1.5倍多的概率。况且影响人情
绪的好多呢，猫猫狗狗带来的舒缓情绪的功劳也很大，如果他们把这个也加进去，说不
定这个T. gondi的消极面就抵消了呢。
T.
【在 m*******g 的大作中提到】
: 本着科学的严谨态度，我要提几个问题
: 1. 有没有证据证明，cat litter box有更高的几率传播T. gondii？如果没有证据，那
: 就是说，任何东西的传播几率都是一样的，那你还着急个p
: 2. 有没有证据说明，传播的媒介是什么？如果媒介是因为不干净的手......那跟cat
: litter box又有什么关系？
: 3. 有没有比较数据证明，T. gondii引发的精神疾病比其它感染要高？说不定发烧引起
: 的精神疾病是200%？谁不发个烧什么的，那你还着急个p
: 其它各种，不一一列举
: 作者的论证手段是：cat litter box会携带细菌 -- 细菌通过媒介传播T. gondii --T.
: gondii会有后遗症 -- 后遗症会引发精神疾病。所以cat litter box会引发精神疾病
|
l*****g
发帖数: 996 | 26 精神分裂症好像也有点干系
Schizophr Bull (2012) 38 (3): 642-647.
Toxoplasma gondii and Other Risk Factors for Schizophrenia: An Update
E. Fuller Torrey1,*,
John J. Bartko1 and
Robert H. Yolken2
+ Author Affiliations
1The Stanley Medical Research Institute, 8401 Connecticut Avenue, Suite 200,
Chevy Chase, MD 20815
2Stanley Laboratory of Developmental Neurovirology, Department of Pediatrics
, Johns Hopkins University Medical Center, Baltimore, MD
↵*To whom correspondence should be addressed; tel: 301-571-2078, fax:
301-571-0775, e-mail: t*****[email protected]
Abstract
The failure to find genes of major effect in schizophrenia has refocused
attention on nongenetic, including infectious factors. In a previous study,
antibodies to Toxoplasma gondii were found to be elevated in 23 studies of
schizophrenia (OR 2.73; 95% CI 2.10–3.60). The current study replicates
this finding with 15 additional studies (OR 2.71; 95% CI 1.93–3.80) and
compares this with other identified schizophrenia risk factors. The highest
risk factors are having an affected mother (relative risks [RR] 9.31; 95% CI
7.24–11.96), father (RR 7.20; 95% CI 5.10–10.16), or sibling (RR 6.99; 95
% CI 5.38–9.08) or being the offspring of immigrants from selected
countries (RR 4.5; 95% CI 1.5–13.1). Intermediate risk factors, in addition
to infection with T. gondii, include being an immigrant from and to
selected countries (RR 2.7; 95% CI 2.3–3.2), being born in (RR 2.24; 95% CI
1.92–2.61) or raised in (RR 2.75; 95% CI 2.31–3.28) an urban area,
cannabis use (OR 2.10–2.93; 95% CI 1.08–6.13), having minor physical
anomalies (OR 2.23; 95% CI 1.42–3.58), or having a father 55 or older (OR 2
.21–5.92; 95% CI 1.46-17.02). Low-risk factors include a history of
traumatic brain injury (OR 1.65; 95% CI 1.17–2.32), sex abuse in childhood
(OR 1.46; 95% CI 0.84–2.52), obstetrical complications (OR 1.29–1.38; 95%
CI 1.00–1.84), having a father 45 or older (OR 1.21–1.66; 95% CI 1.09–2.
01), specific genetic polymorphisms (OR 1.09–1.24; 95% CI 1.06–1.45),
birth seasonality (OR 1.07–1.95; 95% CI 1.05–2.91), maternal exposure to
influenza (RR 1.05; 95% CI 0.98–1.12), or prenatal stress (RR 0.98–1.00;
95% CI 0.85–1.16).
an
toxoplasma
their
【在 z****t 的大作中提到】
: Study Links Cat Litter Box to Increased Suicide Risk
: By SUSAN DONALDSON JAMES | Good Morning America
: A common parasite that can lurk in the cat litter box may cause undetected
: brain changes in women that make them more prone to suicide, according to an
: international study.
: Scientists have long known that pregnant women infected with the toxoplasma
: gondii parasite -- spread through cat feces, undercooked meat or unwashed
: vegetables -- could risk still birth or brain damage if transmitted to an
: unborn infant.
: But a new study of more than 45,000 women in Denmark shows changes in their
|
N******t
发帖数: 16051 | 27 对，据说摸猫可以延长寿命。。。不过延长的时间可能只等于花在摸猫上的时间，就跟
跑步似的，哈哈
【在 l*****g 的大作中提到】
: 看评论这个study好像是通过丹麦生过孩子的妇女的人口记录里查的T.gondii的抗体，
: 这个比较直接的。
: 不过就算这是真的，也只是一个小小的因素啦。不过才1.5倍多的概率。况且影响人情
: 绪的好多呢，猫猫狗狗带来的舒缓情绪的功劳也很大，如果他们把这个也加进去，说不
: 定这个T. gondi的消极面就抵消了呢。
:
: T.
|
b******a
发帖数: 12216 | 28 哈哈哈，最后一个，太好笑了！！！
with
duh
【在 M*****a 的大作中提到】
: 天，雅虎的回帖笑得我肚子疼
: Probably the most accurate statement in this article is, "We can't say with
: certainty that...."
: Only 1 in 10 people who try to commit suicide are successful? We need to
: have a better success rate.
: Somewhere a dog is typing "LMFAO".....
: The study was paid for by a wealthy German Shepherd.
: Bottom line: Don't eat the cat litter.
: Who needs a litter box when your neighbor has a garden?
: "Oftentimes the first symptom of pancreatic cancer is depression" . well duh
|
b******a
发帖数: 12216 | 29 介于临床和基础研究之间过渡地带的表示：pure基础也挺无聊的。。。
//
【在 N******t 的大作中提到】
: 基础研究都不instructive但很有意思。。。instructive的临床研究都很枯燥。。。//
: 做基础研究的人飘过
:
: does
|
b******s
发帖数: 5365 | 30 litter box什么的是吸引注意力的噱头，今天我在NPR也听到这个报道，但本楼贴出来
的文章省略了最后几句话-----发这个文章的作者家里也有两只猫，而且他说他不打算
因此而不继续养猫，毕竟自杀这个事情是多因素导致的。
T.
【在 m*******g 的大作中提到】
: 本着科学的严谨态度，我要提几个问题
: 1. 有没有证据证明，cat litter box有更高的几率传播T. gondii？如果没有证据，那
: 就是说，任何东西的传播几率都是一样的，那你还着急个p
: 2. 有没有证据说明，传播的媒介是什么？如果媒介是因为不干净的手......那跟cat
: litter box又有什么关系？
: 3. 有没有比较数据证明，T. gondii引发的精神疾病比其它感染要高？说不定发烧引起
: 的精神疾病是200%？谁不发个烧什么的，那你还着急个p
: 其它各种，不一一列举
: 作者的论证手段是：cat litter box会携带细菌 -- 细菌通过媒介传播T. gondii --T.
: gondii会有后遗症 -- 后遗症会引发精神疾病。所以cat litter box会引发精神疾病
|
|
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s*******y
发帖数: 2977 | 31 "link" doesn't mean anything...coz association doesn't mean causation. this
kind of research I often call it "entertainment" research, it does
everything right except practical deliverables. |
z*****e
发帖数: 14786 | 32 Can't agree more!
并且通篇读下来感觉这个Postolache的脑子最需要被治疗。。
【在 M*****a 的大作中提到】
: 我觉得有必要让更多人知道，多数时候media outlets are completely ignorant
: about science and medicine, 这些电视上上蹿下跳的科学家多数为了fame而不是
: service to public health。更糟糕的是journalist说什么观众就信什么，很少真正有
: 人去研究下是不是这么回事。
|
z*****e
发帖数: 14786 | 33 猫啥时候成primary host啦？
prevention.
and
and
【在 R******d 的大作中提到】
: no, this is a typical pathogen study to protect you.
: http://en.wikipedia.org/wiki/Toxoplasma_gondii
: as a pet owner, it is your own decision to evaluate the risk and prevention.
: the purpose of the study is for better understanding of this pathogen and
: eventually benefit you. it is your choice if you choose to be ignorant and
: take knowledge in different direction, but do not blame the scientists.
: besides, I don't see how the study here has anything to say about medical
: science at the bottleneck, it is just a typical study, maybe because cat
: being the primary host for the parasite.
|
z*****e
发帖数: 14786 | 34 有理。
很多新闻报道就是断章取义，再起个耸人听闻的标题来吓唬人~
T.
【在 m*******g 的大作中提到】
: 本着科学的严谨态度，我要提几个问题
: 1. 有没有证据证明，cat litter box有更高的几率传播T. gondii？如果没有证据，那
: 就是说，任何东西的传播几率都是一样的，那你还着急个p
: 2. 有没有证据说明，传播的媒介是什么？如果媒介是因为不干净的手......那跟cat
: litter box又有什么关系？
: 3. 有没有比较数据证明，T. gondii引发的精神疾病比其它感染要高？说不定发烧引起
: 的精神疾病是200%？谁不发个烧什么的，那你还着急个p
: 其它各种，不一一列举
: 作者的论证手段是：cat litter box会携带细菌 -- 细菌通过媒介传播T. gondii --T.
: gondii会有后遗症 -- 后遗症会引发精神疾病。所以cat litter box会引发精神疾病
|
z*****e
发帖数: 14786 | 35 lmfao~
with
duh
【在 M*****a 的大作中提到】
: 天，雅虎的回帖笑得我肚子疼
: Probably the most accurate statement in this article is, "We can't say with
: certainty that...."
: Only 1 in 10 people who try to commit suicide are successful? We need to
: have a better success rate.
: Somewhere a dog is typing "LMFAO".....
: The study was paid for by a wealthy German Shepherd.
: Bottom line: Don't eat the cat litter.
: Who needs a litter box when your neighbor has a garden?
: "Oftentimes the first symptom of pancreatic cancer is depression" . well duh
|
z*****e
发帖数: 14786 | 36 可是为啥只高不低呢？
我原以为养猫的都不会想着自杀呢~
【在 l*****g 的大作中提到】
: 看评论这个study好像是通过丹麦生过孩子的妇女的人口记录里查的T.gondii的抗体，
: 这个比较直接的。
: 不过就算这是真的，也只是一个小小的因素啦。不过才1.5倍多的概率。况且影响人情
: 绪的好多呢，猫猫狗狗带来的舒缓情绪的功劳也很大，如果他们把这个也加进去，说不
: 定这个T. gondi的消极面就抵消了呢。
:
: T.
|
z*****e
发帖数: 14786 | 37 摸猫比跑步舒服多了，我甘愿^_^
【在 N******t 的大作中提到】
: 对，据说摸猫可以延长寿命。。。不过延长的时间可能只等于花在摸猫上的时间，就跟
: 跑步似的，哈哈
|
b********i
发帖数: 10335 | 38 "So....They're saying that it's still safe to eat dog crap?"...
with
duh
【在 M*****a 的大作中提到】
: 天，雅虎的回帖笑得我肚子疼
: Probably the most accurate statement in this article is, "We can't say with
: certainty that...."
: Only 1 in 10 people who try to commit suicide are successful? We need to
: have a better success rate.
: Somewhere a dog is typing "LMFAO".....
: The study was paid for by a wealthy German Shepherd.
: Bottom line: Don't eat the cat litter.
: Who needs a litter box when your neighbor has a garden?
: "Oftentimes the first symptom of pancreatic cancer is depression" . well duh
|
N******t
发帖数: 16051 | 39 同意。。。有的实在太基础了八杆子摸不着application在哪里。。。
【在 b******a 的大作中提到】
: 介于临床和基础研究之间过渡地带的表示：pure基础也挺无聊的。。。
:
: //
|
N******t
发帖数: 16051 | 40 可能性格本身有关系，养猫的人比较内向，还有crazy cat lady啥的。。。
【在 z*****e 的大作中提到】
: 可是为啥只高不低呢？
: 我原以为养猫的都不会想着自杀呢~
|
|
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d******g
发帖数: 5484 | 41 有道理，有关联和诱导是两回事
这中文名字是知音编辑起的么？
this
【在 s*******y 的大作中提到】
: "link" doesn't mean anything...coz association doesn't mean causation. this
: kind of research I often call it "entertainment" research, it does
: everything right except practical deliverables.
|
m*****y
发帖数: 76 | 42 We call this kind of study "statistically significant"....... |
c*******7
发帖数: 2329 | 43 should be ...is statistically significantly associated with...
统计学上很难证明causality
【在 m*****y 的大作中提到】
: We call this kind of study "statistically significant".......
|
w***o
发帖数: 6775 | |
m*****y
发帖数: 76 | 45 - -
你没听说过statistically significant, but not clinically relevant么？
【在 c*******7 的大作中提到】
: should be ...is statistically significantly associated with...
: 统计学上很难证明causality
|
c*****a
发帖数: 1239 | 46 丹麥的殘殘們
【在 b*****e 的大作中提到】
: 是不是英国科学家？
:
: an
: toxoplasma
: their
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N******t
发帖数: 16051 | 47 要抱怨就抱怨记者，不关科学家啥事
【在 c*****a 的大作中提到】
: 丹麥的殘殘們
|
