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Your belly fat could be making you hungrier

Researchers at the University of Western Ontario discovered that abdominal fat tissue produces a hormone called Neuropeptide Y (NPY), which stimulates fat cell production. This novel finding may lead to new therapeutic targets for combating obesity, including the development of a simple blood test to detect increased levels of NPY.

SourceUniversity of Western Ontario·JournalThe FASEB Journal·DateApr 16, 2008

'Connecting the dots' in path that leads to fat

Researchers have identified KLF4 as a key player in the early stages of fat formation, connecting the dots between molecular processes that lead to adipogenesis. By understanding how KLF4 influences C/EBPß activity and drives fat production, scientists may be able to intervene and alter fat development.

SourceCell Press·JournalCell Metabolism·DateApr 8, 2008

Fundamental discovery by Einstein researchers reveals how fat is stored in cells

Scientists at Einstein College of Medicine identified two genes crucial for packaging fat into lipid droplets. Overexpressing these genes led to a significant increase in lipid droplet formation, while suppressing one of the genes resulted in a drastic reduction. This discovery could lead to new strategies for treating obesity and rela...

SourceAlbert Einstein College of Medicine·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

JCI table of contents: Dec. 3, 2007

A new study published in JCI Journal has found that CP-31398, a compound that binds to mutant forms of the p53 protein, can prevent and treat UV light–induced skin cancers in mice. The study also demonstrated that CP-31398 increased p53 function in human skin cancer cells expressing a mutant form of p53.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 3, 2007

Study suggests link between obesity, poor bone health

A University of Georgia study published in the American Journal of Clinical Nutrition found that obesity may be bad for bone health in young women. The research used advanced three-dimensional bone scans on 115 women aged 18-19 and found that obese participants had weaker bones by 8-9% compared to those with normal body fat.

SourceUniversity of Georgia·JournalAmerican Journal of Clinical Nutrition·DateNov 26, 2007

Fat cells send message that aids insulin secretion

Researchers at WashU Medicine found that fat cells release an enzyme called Nampt, which enhances glucose-stimulated insulin secretion from pancreatic beta cells. This discovery could lead to new methods for improving glucose metabolism in type 2 diabetic or insulin-resistant individuals.

SourceWashU Medicine·JournalCell Metabolism·DateNov 6, 2007

Enzyme promotes fat formation

A recent study found that TPPII stimulates the formation of fat cells in worms and mammalian cells, leading to decreased fat stores. Mice with lower levels of TPPII were thinner than their wild-type littermates despite comparable food intake.

SourceEMBO·JournalEMBO Reports·DateOct 11, 2007

Tuberculosis: The bacillus takes refuge in adipose cells

Researchers found that Mycobacterium tuberculosis can hide in adipose cells, protecting it from the immune system and antibiotics, and may remain dormant for years. This discovery sheds light on possible strategies for fighting tuberculosis, highlighting the need for new targeted therapeutic weapons.

SourcePLOS·JournalPLOS ONE·DateDec 20, 2006

Protein potentially links diet, obesity and asthma

The study reveals that protein aP2 is present in human epithelial cells lining the airways and its expression is increased by interleukin-4 and -13. Mice lacking aP2 exhibit reduced airway inflammation, highlighting the importance of lipids in inflammation and metabolism.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 13, 2006

Expanding waistlines triggered by your genes

Researchers at U-M's Life Sciences Institute discovered that the MT1-MMP gene regulates fat cell size and metabolic gene expression. In three-dimensional environments, the gene plays a critical role in adipocyte development, potentially leading to novel therapeutics for obesity prevention.

SourceUniversity of Michigan·JournalCell·DateMay 4, 2006

In 3D, early fat development first requires 'remodeling'

In the absence of MT1-MMP, preadipocytes fail to break through extracellular matrix, disrupting fat cell development. However, MT1-MMP is essential for remodeling the surrounding matrix to facilitate normal fat formation. The enzyme may also regulate collagen in white adipose tissue and act as a protein-degrading rheostat.

SourceCell Press·JournalCell·DateMay 4, 2006

The making of a fat cell

A study by University of Michigan researchers reveals the critical genetic switch that allows preadipocytes to become full-blown fat cells, highlighting the importance of balance in fat production. The discovery sheds new light on the role of integrin alpha 6 in regulating fat cell formation and its potential link to metabolic disorders.

SourceCell Press·JournalCell Metabolism·DateSep 13, 2005

JCI table of contents August 1, 2005

Researchers uncover HIV fusion peptide's dual role in mediating immunity and downregulating T cell responses. Additionally, a novel connection is made between fat cells, cholesterol metabolism, and PPAR gamma regulation.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 7, 2005

A big fat contribution to breast tumor growth

Researchers found that collagen VI from adipocytes stimulates the proliferation and survival of malignant cells in breast tumors. The study suggests a potential link between increased adiposity and breast cancer risk, highlighting the role of extracellular matrix proteins in tumor behavior.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 14, 2005

Oxidants link obesity to diabetes

Researchers found that apocynin reduced ROS production in fat cells, restored adipocytokine production, and improved diabetes. Accumulated fatty tissue is a major source of ROS in obesity, acting as an early trigger of metabolic syndrome.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 15, 2004

Gut microbes can open gates in fat cells

Research reveals that gut microbes suppress fasting-induced adipocyte factor (Fiaf), helping to keep fat cell gates closed. This suppression can lead to increased fat storage and insulin resistance, highlighting the importance of gut microbiota in regulating fat metabolism.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateNov 1, 2004

Diabetes drug works by enhancing fat cell energy production

A recent study published in the Journal of Clinical Investigation reveals that a diabetes drug called rosiglitazone enhances fat cell energy production by remodelling mitochondria. This finding suggests a potential new approach to treating obesity, which is a major risk factor for developing type 2 diabetes.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2004

JCI table of contents November 1, 2004

Researchers identified a link between genetic mutations in the ABCA1 gene and lower HDL cholesterol levels in the general population. Approximately 10% of individuals with low HDL levels carry a mutation or nucleotide modification in one of their ABCA1 genes, suggesting that genetic variation plays a role in regulating HDL levels.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2004

Biology of aging

A study published in Nature reveals that insulin regulates tissue aging and extends the lifespan of genetically modified flies. By blocking insulin's action in specific cells, the entire body stays healthier longer, staving off age-related diseases.

SourceBrown University·JournalNature·DateJun 2, 2004