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Spexin as an indicator of beneficial effects of exercise in human obesity and diabetes.

ABSTRACT: Spexin is a novel neuropeptide playing an emerging role in metabolic diseases such as obesity and diabetes via involvement in energy homeostasis and food intake. The present study investigated the effects of obesity and type 2 diabetes (T2D) on circulating levels of spexin and its modulation by physical exercise. Normal-weight (n?=?50) and obese adults with and without T2D (n?=?69 and n?=?66, respectively) were enrolled in the study. A subgroup of obese participants (n?=?47) underwent a supervised 3-month exercise programme. Plasma spexin levels were measured by ELISA and correlated with various markers. Plasma spexin levels decreased in obese participants with or without T2D compared with those of normal-weight participants (0.43?±?0.11, 0.44?±?0.12 and 0.61?±?0.23 ng/ml, respectively; P?

SUBMITTER: Khadir A

PROVIDER: S-EPMC7327065 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Spexin as an indicator of beneficial effects of exercise in human obesity and diabetes.

Khadir Abdelkrim A Kavalakatt Sina S Madhu Dhanya D Devarajan Sriraman S Abubaker Jehad J Al-Mulla Fahd F Tiss Ali A

Scientific reports 20200630 1

Spexin is a novel neuropeptide playing an emerging role in metabolic diseases such as obesity and diabetes via involvement in energy homeostasis and food intake. The present study investigated the effects of obesity and type 2 diabetes (T2D) on circulating levels of spexin and its modulation by physical exercise. Normal-weight (n = 50) and obese adults with and without T2D (n = 69 and n = 66, respectively) were enrolled in the study. A subgroup of obese participants (n = 47) underwent a supervis ...[more]

PMID: 32606431

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Project description:Severe fatigue is a major health problem in fibromyalgia (FM). Obesity is common in FM, but the influence of adipokines and growth factors is not clear. The aim was to examine effects of exercise on fatigue, in lean, overweight and obese FM patients.In a longitudinal study, 48 FM patients (median 52 years) exercised for 15 weeks. Nine patients were lean (body mass index, BMI 18.5 to 24.9), 26 overweight (BMI 25 to 29.9) and 13 obese. Fatigue was rated on a 0 to 100 mm scale (fibromyalgia impact questionnaire [FIQ] fatigue) and multidimensional fatigue inventory (MFI-20) general fatigue (MFIGF). Higher levels in FIQ fatigue and MFIGF indicate greater degree of fatigue. Free and total IGF-1, neuropeptides, adipokines were determined in serum and cerebrospinal fluid (CSF).Baseline FIQ fatigue correlated negatively with serum leptin (r=-0.345; P=0.016) and nerve growth factor (NGF; r=-0.412; P=0.037). In lean patients, baseline MFIGF associated negatively with serum resistin (r=-0.694; P=0.038). FIQ Fatigue associated negatively with CSF resistin (r=-0.365; P=0.073). Similarly, FIQ fatigue (r=-0.444; P=0.026) and MFIGF correlated negatively with CSF adiponectin (r=-0.508; P=0.01). In lean patients, FIQ fatigue (P=0.046) decreased after 15 weeks. After 30 weeks, MFIGF decreased significantly in lean (MFIGF: P=0.017), overweight (MFIGF: P=0.001), and obese patients (MFIGF: P=0.016). After 15 weeks, total IGF-1 increased in lean (P=0.043) patients. ?Total IGF-1 differed significantly between lean and obese patients (P=0.010). ?Total IGF-1 related negatively with ?MFIGF after 15 weeks (r=-0.329; P=0.050). After 30 weeks, ?FIQ fatigue negatively correlated with ?NGF (r=-0.463; P=0.034) and positively with ?neuropeptide Y (NPY) (r=0.469; P=0.032). Resistin increased after 30 weeks (P=0.034). ?MFIGF correlated negatively with ?resistin (r=-0.346; P=0.031), being strongest in obese patients (r=-0.815; P=0.007). In obese patients, ?FIQ fatigue after 30 weeks correlated negatively with ?free IGF-1 (r=-0.711; P=0.032).Exercise reduced fatigue in all FM patients, this effect was achieved earlier in lean patients. Baseline levels of resistin in both serum and CSF associated negatively with fatigue. Resistin was increased after the exercise period which correlated with decreased fatigue. Changes in IGF-1 indicate similar long-term effects in obese patients. This study shows reduced fatigue after moderate exercise in FM and indicates the involvement of IGF-1 and resistin in these beneficial effects.ClinicalTrials.gov: NCT00643006.

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Spexin as an indicator of beneficial effects of exercise in human obesity and diabetes.

Publications

Spexin as an indicator of beneficial effects of exercise in human obesity and diabetes.

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