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Biotech / Medical : Ligand (LGND) Breakout! -- Ignore unavailable to you. Want to Upgrade?


To: Henry Niman who wrote (17921)3/26/1998 1:27:00 PM
From: squetch  Respond to of 32384
 
Yesterday's IBD had an article on New Non-Hormonal Drugs for Osteo if you are interested Henry. squetch PS It is below an article on PT Barnum.



To: Henry Niman who wrote (17921)3/26/1998 3:22:00 PM
From: JOEBT1  Read Replies (4) | Respond to of 32384
 
Henry, Bernie, Andy, et al
This thread with you all and other contributors provides the "world" ( long term investors, traders-shorts and long, and market makers) almost "perfect" knowledge of LGND. There are no real surprises- everyone knows when news is coming and what it is in the near term and the future. What a dream situation for shrewd traders and MMs who can be long and short and hedge with puts and calls. MMs could easily paint the tape and move prices up or down to maximize their profits knowing what news is coming. Likewise it doesn't take many trades by shorts to drive the price down. I doubt if there is another bio-tech where everyone has such perfect knowledge, thanks to Henry and others.
I'm beginning to conclude that this thread which Henry started to whip up interest in LGND may be counter productive and more of an aid to MMs and traders. If so, then we ought to stop feeding them real time info on what is coming out of LGND. There's plenty of info available already for long term investors. Let me know what you think of this thesis.



To: Henry Niman who wrote (17921)4/2/1998 9:33:00 AM
From: Henry Niman  Respond to of 32384
 
Speaking of Alzheimer's and SERMs, sounds like throwing in some rexinoid (Targretin) may also help:

Insulin resistance linked to some Alzheimer's

By Theresa Waldron

Patients with Alzheimer's disease appear to have abnormal insulin levels, both in plasma and
cerebrospinal fluid (CSF), which may be one explanation for the pathophysiology of the disease,
say Seattle investigators.

Suzanne Craft, Ph.D., associate professor of psychiatry at the University of Washington and the
Veterans Affairs Puget Sound Health Care System, and colleagues examined paired fasted
plasma and CSF insulin levels in 25 patients with Alzheimer's disease and 14 healthy adults.

The Alzheimer's patients had lower CSF insulin levels, higher plasma insulin levels, and a
reduced CSF-to-plasma insulin ratio when compared with patients without the disease, the
investigators reported in a recent issue of Neurology (1998; 50:164-168).

Differences in insulin level were more pronounced in patients with more advanced Alzheimer's
disease.

The findings indicate that there may be a problem with the ability of insulin to promote glucose
utilization, both in the periphery and the brain, for some patients with disease, Dr. Craft
explained. The brain is "completely dependent on obtaining glucose from the peripheral
glucoregulatory system," she said.

"The brain can't store glucose the way the periphery can, and it can't synthesize glucose," Dr.
Craft said. "So peripheral glucose metabolism efficiency is important in getting an optimal
supply of glucose to the brain. Insulin in the brain isn't working effectively to promote glucose
utilization. It's a defect in insulin action."

The researchers were surprised to find that the patients showing insulin resistance did not have
the apolipoprotein E4 (Apo E4) gene often associated with Alzheimer's disease, Dr. Craft said.
Conversely, patients with Apo E4 did not show insulin resistance.

Because peripheral insulin resistance may be a risk factor for Alzheimer's disease, there may be
some benefit to treating insulin resistance with oral antidiabetic agents, the Washington
psychiatrist said.

It remains to be seen whether the presence of insulin resistance can be used to aid diagnosis in a
patient with suspected Alzheimer's disease, according to Dr. Craft.

"We're not at the point where it can be used as a diagnostic test," she said.

This study is a "very intriguing piece of basic science," commented Warren Strittmatter, M.D.,
professor of medicine at Duke University Medical Center in Durham, N.C.

Further studies on insulin and other proteins, such as immunoglobulins, may be helpful in
looking for the mechanism by which Apo E-4 contributes to Alzheimer's disease risk, said Dr.
Strittmatter, who is one of the investigators who uncovered the link between Apo E-4 and
Alzheimer's disease.

"I'd look at other proteins like insulin that are transported across [the blood-brain barrier] to see
whether or not the observation they report here is unique to insulin or whether it's a more
general mechanism of protein transport," Dr. Strittmatter said.

Cell uptake across the blood-brain barrier may be abnormal in these patients, he explained.