Journal ArticleDOI
Leptin levels in human and rodent : Measurement of plasma leptin and ob RNA in obese and weight-reduced subjects
Margherita Maffei,Jeffrey L. Halaas,Eric Ravussin,Richard E. Pratley,Gwo-Hwa Lee,Gwo-Hwa Lee,Yan Zhang,Yan Zhang,Hong Fei,S. Kim,R. Lallone,S. Ranganathan,Philip A. Kern,Philip A. Kern,Jeffrey M. Friedman,Jeffrey M. Friedman +15 more
TLDR
Weight loss due to food restriction was associated with a decrease in plasma leptin in samples from mice and obese humans, suggesting differences in its secretion rate from fat.Abstract:
Leptin, the gene product of the obese gene, may play an important role in regulating body weight by signalling the size of the adipose tissue mass. Plasma leptin was found to be highly correlated with body mass index (BMI) in rodents and in 87 lean and obese humans. In humans, there was variability in plasma leptin at each BMI suggesting that there are differences in its secretion rate from fat. Weight loss due to food restriction was associated with a decrease in plasma leptin in samples from mice and obese humans.read more
Citations
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Journal ArticleDOI
Leptin and the regulation of body weight in mammals
TL;DR: The role of leptin in the control of body weight and its relevance to the pathogenesis of obesity are reviewed.
Journal ArticleDOI
Obesity as a medical problem
TL;DR: The global epidemic of obesity results from a combination of genetic susceptibility, increased availability of high-energy foods and decreased requirement for physical activity in modern society, and should be regarded as an epidemic that threatens global well being.
Journal ArticleDOI
Identification and expression cloning of a leptin receptor Ob-R
Louis A. Tartaglia,Marlene Dembski,Xun Weng,Nanhua Deng,Janice A. Culpepper,Rene Devos,Grayson J. Richards,L. Arthur Campfield,Frederick T. Clark,Jim Deeds,Craig Muir,Sean Sanker,Ann Moriarty,Karen J. Moore,John S. Smutko,Gail G. Mays,Elizabeth A. Wool,Cheryl A. Monroe,Robert I. Tepper +18 more
TL;DR: The ob gene product, leptin, is an important circulating signal for the regulation of body weight and a series of leptin-alkaline phosphatase (AP) fusion proteins as well as [125I]leptin fusion proteins were generated to identify high affinity leptin-binding sites in the mouse choroid plexus.
Journal ArticleDOI
Adipose tissue as an endocrine organ.
TL;DR: These proteins commonly known as adipokines are central to the dynamic control of energy metabolism, communicating the nutrient status of the organism with the tissues responsible for controlling both energy intake and expenditure as well as insulin sensitivity.
Journal ArticleDOI
Plasma Concentrations of a Novel, Adipose-Specific Protein, Adiponectin, in Type 2 Diabetic Patients
Kikuko Hotta,Tohru Funahashi,Yukio Arita,Masahiko Takahashi,Morihiro Matsuda,Yoshihisa Okamoto,Hiromi Iwahashi,Hiroshi Kuriyama,Noriyuki Ouchi,Kazuhisa Maeda,Makoto Nishida,Shinji Kihara,Naohiko Sakai,Tadahisa Nakajima,Kyoichi Hasegawa,Masahiro Muraguchi,Yasukazu Ohmoto,Tadashi Nakamura,Shizuya Yamashita,Toshiaki Hanafusa,Yuji Matsuzawa +20 more
TL;DR: Results suggest that the decreased plasma adiponectin concentrations in diabetes may be an indicator of macroangiopathy, and weight reduction significantly elevated plasma adip onectin levels in the diabetic subjects as well as the nondiabetic subjects.
References
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Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction
TL;DR: A new method of total RNA isolation by a single extraction with an acid guanidinium thiocyanate-phenol-chloroform mixture is described, providing a pure preparation of undegraded RNA in high yield and can be completed within 4 h.
Journal ArticleDOI
A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity
TL;DR: A technique for conveniently radiolabeling DNA restriction endonuclease fragments to high specific activity is described, and these "oligolabeled" DNA fragments serve as efficient probes in filter hybridization experiments.
Book
Antibodies: A Laboratory Manual
Ed Harlow,David P. Lane +1 more
TL;DR: A second edition of Antibodies: A Laboratory Manual is being published in September 2013, Revised, extended and updated by Edward Greenfield of the Dana-Farber Cancer Center, the material has been recast with extensive new information and new chapters have been added.
A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity
TL;DR: In this article, a technique for conveniently radiolabeling DNA restriction endonuclease fragments to high specific activity is described, where DNA fragments are purified from agarose gels directly by ethanol precipitation and are then denatured and labeled with the large fragment of DNA polymerase I, using random oligonucleotides as primers.
Journal ArticleDOI
Positional cloning of the mouse obese gene and its human homologue
Yiying Zhang,Ricardo Proenca,Ricardo Proenca,Margherita Maffei,Marisa Barone,Marisa Barone,Lori Leopold,Lori Leopold,Jeffrey M. Friedman,Jeffrey M. Friedman +9 more
TL;DR: The ob gene product may function as part of a signalling pathway from adipose tissue that acts to regulate the size of the body fat depot.