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Leptin signaling and leptin resistance

“…As leptin binds to its receptors in either the CNS or periphery, it induces Janus kinase 2 (JAK2) to phosphorylate tyrosine resides on the cytosolic domain. Once JAK2 is activated, multiple downstream pathways are stimulated, including the signal transducer and activator of transcription 3 (STAT3), mitogen-activated protein kinase (MAPK), and phosphoinositide 3-kinase (PI3K) pathways [19], which regulate gene expression, cell growth, and inflammation.…”

Section: Leptinmentioning

“…As leptin binds to its receptors in either the CNS or periphery, it induces Janus kinase 2 (JAK2) to phosphorylate tyrosine resides on the cytosolic domain. Once JAK2 is activated, multiple downstream pathways are stimulated, including the signal transducer and activator of transcription 3 (STAT3), mitogen-activated protein kinase (MAPK), and phosphoinositide 3-kinase (PI3K) pathways [19], which regulate gene expression, cell growth, and inflammation.…”

Section: Leptinmentioning

“…[34] Mekanisme molekular yang menyebabkan terjadinya resistensi leptin antara lain karena adanya gangguan pada transportasi leptin, gangguan pada sinyal LEPR-B dan adanya gangguan pada sirkuit neural target leptin. [35] Hasil penelitian ini diperoleh korelasi antara lingkar pinggang dengan kadar leptin yang mempunyai nilai kemaknaan (p) sebesar 0,001 untuk kelompok perempuan dan 0,003 untuk kelompok laki-laki, dimana menunjukkan bahwa korelasi tersebut memiliki makna secara statistik (p<0,05). Nilai korelasi pearson (r) menunjukkan angka korelasi 0,490 untuk kelompok lakilaki yang berarti memiliki kekuatan korelasi sedang dan 0,695 untuk kelompok perempuan yang berarti memiliki kekuatan korelasi kuat.…”

Section: Pembahasanunclassified

“…Leptin is a product of the LEP gene that can regulate food intake and the energy balance as well as reproduction [11]. LEPR, as the product of alternative RNA splicing of LEPR gene, is expressed in six isoforms, which can be divided into three classes: long, short and secretory.…”

mentioning