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Carbon monoxide shown to reverse symptoms of pulmonary hypertension

In a medical case of Jekyll and Hyde, carbon monoxide - the highly toxic gas emitted from auto exhausts and faulty heating systems - has proven effective in treating the symptoms of pulmonary arterial hypertension (PAH), an extremely debilitating condition that typically leads to right heart failure and eventual death.

20 Sep 2006

p120 catenin protein can stop metastasis or promote it

A protein known to be a key component of the glue that holds cells together also is involved in breaking them apart and promoting their movement when tumors begin to spread to other parts of the body, researchers at Mayo Clinic have found.

20 Sep 2006

Cisplatin nanoliposomes for cancer therapy

Cisplatin is one of the most powerful and effective drugs for treating a wide variety of cancers, but many tumors develop resistance to this drug, ultimately limiting its benefits for cancer patients.

19 Sep 2006

Researchers create roadmap to integrin activation

Calling it an important technical advance in the study of the complex receptors and pathways of the body's cellular system, researchers at the University of California, San Diego (UCSD) School of Medicine have reconstructed the signaling pathways that impact activation of a receptor that is critical to the control of bleeding and to the thrombosis that occurs in heart attacks and strokes.

18 Sep 2006

New screening method shows how nanoparticles interact with human cells

Scientists at the Brookhaven National Laboratory have developed a screening method to examine how newly made nanoparticles interact with human cells following exposure for various times and doses. Using this new method, the investigators have been able to visualize how human cells interact with some specific types of carbon nanoparticles.

12 Sep 2006

New avenue for the pursuit of therapies for Alzheimer's disease

The genes responsible for an inherited form of Alzheimer's disease play a direct role within cells that has largely been overlooked, according to a report in the September 8, 2006 issue of the journal Cell.

7 Sep 2006

Researchers study cells whose membranes have been opened by ultrasound

Researchers have shown how ultrasound energy can briefly "open a door" in the protective outer membranes of living cells to allow entry of drugs and other therapeutic molecules – and how the cells themselves can then quickly close the door.

5 Sep 2006

Fluid forces within the body help invasive bacteria

Bacteria have hair-like protrusions with a sticky protein on the tip that lets them cling to surfaces.

30 Aug 2006

Newly discovered molecular motor helps a cell determine which way is up

The sense of top and bottom is often lost in cells that become cancerous and may be an important factor in metastasis.

30 Aug 2006

New methods for screening nanoparticles and interaction with human cells

Scientists have developed a screening method to examine how newly made nanoparticles - particles with dimensions on the order of billionths of a meter - interact with human cells following exposure for various times and doses.

21 Aug 2006

Targeted magnetic nanoparticles may be useful in both detecting and treating metastatic breast cancer

An in-depth study of nanoparticle distribution in tumor-bearing mice has shown that targeted magnetic nanoparticles accumulate and cluster in both primary breast tumors and metastatic lesions that have developed in the lung.

21 Aug 2006

Ryogen licenses gene patent to OriGene Technologies

Ryogen and OriGene Technologies have announced today that they have entered into a nonexclusive license agreement whereby OriGene has licensed from Ryogen the patent directed to the clinically important Aminopeptidase P gene.

15 Aug 2006

Researchers find precise location where an antibody binds to the West Nile virus

Researchers have learned the precise location where an antibody binds to the West Nile virus, and they have suggested a mechanism for how this antibody neutralizes the virus to prevent infection.

14 Aug 2006

New tool to study protein kinase A - linked to heart failure

Scientists studying heart cells have devised a new way to visualize and quantify the rise and fall in the activity of a key enzyme linked to heart failure.

8 Aug 2006

Researchers discover one of the malaria parasite's sneakiest tricks

Researchers have discovered one of the malaria parasite's sneakiest tricks--using dead liver cells to cloak and transport itself back into the bloodstream after leaving the liver.

4 Aug 2006

New technique paves the way for developing high-sensitive microsensors for the rapid detection of neurotoxins

To understand how brain cells release compounds used when the cells communicate with each other researchers devise new technique, that can be applied now to the study of a wide range of biological processes and interactions.

3 Aug 2006

How kidneys retain proteins, discard waste

New research may finally settle a decades-old debate about how the kidney keeps valuable blood proteins from harmfully slipping into the urine, a serious health symptom that often precedes kidney failure.

2 Aug 2006

Crohn's disease - possible genetic cause found

Patients with Crohn's disease of the colon have one copy less than healthy persons of the beta-defensin 2 gene, a gene coding for an important defense molecule of the body.

17 Jul 2006

Diblock copolymer micellar nanoparticles decorated with annexin-A5 proteins

One of the banes of modern cancer therapy is that clinicians and patients must often wait months before they can tell if a given treatment is working.

17 Jul 2006

NIAID program aims to model immune responses and key infectious diseases

A new program at the National Institute of Allergy and Infectious Diseases (NIAID) aims to better understand the complex biochemical networks that regulate the interactions between infectious organisms and the human or animal cells they infect.

12 Jul 2006