Serum Adiponectin Levels Research Articles

Clinical efficacy of donepezil combined with nerve growth factor in the treatment of patients with Parkinson’s disease dementia and its impact on adiponectin and soluble tumor necrosis factor-alpha receptor-1

Objective: To explore clinical efficacy of donepezil combined with nerve growth factor (NGF) in the treatment of Parkinson’s disease dementia (PDD) and its potential impact on serum levels of adiponectin (APN) and soluble tumor necrosis factor receptor-1 (sTNFR-1). Methods: Clinical data of 140 patients with PDD treated in Taizhou First People’s Hospital from March 2021 to December 2023 were retrospectively analyzed. Patients were grouped based on the treatment received. Patients who received donepezil alone (n=68) comprised the Donepezil group, and patients who were treated with a combination of donepezil and NGF (n=72) were assigned into the Donepezil & NGF group. Treatment effects, symptom improvement before and after the treatment, APN and sTNFR-1 levels, and incidence of adverse reactions were compared between two groups. Results: The overall efficacy of the combination therapy was higher than that of donepezil regimen alone (P<0.05). After treatment, symptom improvement in the Donepezil & NGF group was significantly better than that in the Donepezil group (P<0.05). Post-treatment serum levels of APN in the Donepezil & NGF group were significantly higher than that of Donepezil group, while the level of sTNFR-1 was significantly lower (P<0.05). There was no significant difference in the incidence of adverse reactions between the two groups (P>0.05). Conclusion: Combined regimen of donepezil and NGF is more effective than donepezil monotherapy in improving cognitive function, neurological function, and severity of the condition of patients with PDD, and is associated with the suppression of the inflammatory response without a significant increase in the incidence of adverse reactions. The study provides a basis for the clinical application of the combined regimen, but it still needs to be confirmed by more basic and clinical research. doi: https://doi.org/10.12669/pjms.41.2.11191 How to cite this: Hu M, Ye J. Clinical efficacy of donepezil combined with nerve growth factor in the treatment of patients with Parkinson’s disease dementia and its impact on adiponectin and soluble tumor necrosis factor-alpha receptor-1. Pak J Med Sci. 2025;41(2):372-377. doi: https://doi.org/10.12669/pjms.41.2.11191 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cross-Sectional Analysis of IL-6, TNF-α, Adiponectin, Leptin, and Klotho Serum Levels in Relation to BMI Among Overweight and Obese Children Aged 10-14 in La Rioja, Spain.

Childhood obesity is a major public health concern, being linked to an increased risk of metabolic disorders and cardiovascular disease. Even in childhood, obesity is associated with systemic low-grade inflammation, which is a critical factor in the development of atherosclerosis and a predictor of cardiovascular morbidity and mortality. To describe the prevalence of obesity and examine the relationship between IL-6, TNF-α, adiponectin, leptin, the leptin/adiponectin (L/A) ratio, and Klotho levels with BMI in children. This cross-sectional study included children aged 10-14 years from La Rioja, Spain. Participants were selected based on BMI criteria for overweight (85th-95th percentiles) and obesity (>95th percentile). Socio-demographic and anthropometric data and blood samples were collected and analyzed for IL-6, TNF-α, adiponectin, leptin, and Klotho. A total of 340 participants were included, with 276 (81.2%) classified as normal weight and 64 (18.8%) as overweight or obese. Mean age was similar between groups (p = 0.40). Obesity was more prevalent in males (59.4%, p = 0.048). Obese participants had higher mean birth weight (p = 0.003), current height (p = 0.04), BMI (p < 0.0001), and abdominal circumference (p < 0.0001). BMI correlated positively with leptin (r = 0.54, p = 0.0008) and the L/A ratio (r = 0.40, p = 0.025), showing sex-specific differences. This study underscores leptin and the L/A ratio as potential biomarkers of metabolic dysregulation in childhood obesity, particularly in females. Longitudinal studies are needed to confirm these findings and assess the clinical utility of these biomarkers in pediatric obesity management.

Frailty and osteoporotic fractures represent mutual risks for each other with common physiological backgrounds

Abstract Frailty and osteoporosis are known to exacerbate each other. However, limited research is available on the shared pathophysiological factors contributing to osteoporotic fractures and frailty. This study aims to identify common factors associated with both the current frailty and the occurrence of incident vertebral fractures. A total of 912 postmenopausal Japanese women, 63.9 ± 10.0 years of age (mean ± SD), were included in the present study. Each participant’s baseline frailty status was assessed using a questionnaire about the five following items: Fatigue, Resistance, Ambulation, Inactivity, and Weight Loss. A score of 3 or above indicated the prevalence of frailty. The participants were then followed up for an average of 10.5 ± 7.5 years, during which 202 patients suffered incident vertebral fractures. The Cox proportional hazards model for incident vertebral fracture revealed that lumbar bone mineral density (HR 0.753, P&amp;lt;.001), adiponectin (HR 1.025, P=.021), Log IL-6 (HR 1.227, P=.029), prevalent vertebral fracture (HR 2.124, P&amp;lt;.001), and frailty status (HR 1.355, P=.002) were independent predictors of incident vertebral fractures. The factors associated with frailty status at baseline were assessed using logistic regression analysis, revealing that adiponectin (OR 1.063, P&amp;lt;.001), Log IL-6 (OR 2.94, P&amp;lt;.001), and prevalent vertebral fractures (OR 2.816, P&amp;lt;.001) were significantly associated with current frailty. Biochemical factors such as IL-6 and adiponectin were commonly associated with vertebral fractures and frailty. Additionally, frailty status was identified as an independent risk factor for vertebral fractures, while prevalent vertebral fractures were significantly associated with frailty. These findings clearly indicate that frailty and osteoporotic fractures represent mutual risks for each other, with serum levels of adiponectin and IL-6 serving as common physiological backgrounds.

Whole grapes or grape products on body weight, anthropometrics, and adipokines: systematic review and meta-analysis of randomized controlled trials

This meta-analysis aims to compile all randomised controlled trials (RCTs) that examined the effects of grapes or grape products on adult anthropometric measures and serum adipokines. We searched PubMed, Scopus, Google scholar, Web of Science and CENTRAL databases published before January 2022. Random-effects model was used to combine mean differences between intervention and placebo groups. A minimal reduction was revealed for BMI following consumption of grapes/grape products [weighted mean difference (WMD): −0.14 kg]; however, no significant effects were observed on body weight, except for trials conducting in female (n = 3 studies; WMD: −0.68 kg), and those enrolled patients with metabolic syndrome (n = 3 studies; WMD: −0.62 kg). No significant effect was found for waist circumference, body fat, waist to hip ratio, serum level of leptin and adiponectin. Our findings showed that grapes or grape products have no significant anti-obesity effects on body weight, anthropometric measures, or adipokines. However, BMI showed a trivial decrease, which should not be considered given the low quality of the studies.

Adiponectin targets the AMPK/mTOR signaling pathway to alleviate cognitive impairment in epilepsy.

Among patients with chronic epilepsy, 70‑80% have cognitive impairment. To investigate the relationship between adiponectin (ADPN) and the cognitive level in epilepsy and its mechanism, 20 epileptic patients and 20 healthy controls were included for the assessment of the cognitive level. An ELISA was used to evaluate the serum ADPN level. An epileptic rat model was established and treated with AdipoRon, an ADPN receptor (AdipoR) agonist, which binds to AdipoR1 and AdipoR2. The Morris water maze test was used to assess the cognitive function of rats, and the expression levels of the synapsis‑associated proteins postsynaptic density protein 95 (PSD95), synaptosomal associated protein 25 (SNAP25) and synaptophysin (SYP), as well as AMP‑activated protein kinase (AMPK), mTOR, phosphorylated (p‑)AMPK and p‑mTOR were determined by immunoblotting. Serum ADPN levels were positively correlated with the Montreal cognitive assessment score. AdipoRon improved the cognitive function of epileptic rats, maintained the structural integrity of hippocampal neurons and reduced neuronal damage. It also promoted the mRNA expression of AdipoR1 and AdipoR2 in the hippocampus. Furthermore, AdipoRon increased the expression of the synapsis‑associated proteins PSD95, SNAP25 and SYP by activating the AMPK/mTOR signaling pathway. ADPN improved cognitive impairment in epilepsy by targeting the AMPK/mTOR signaling pathway, providing novel insights for the treatment of epilepsy.

LOW SERUM ADIPONECTIN AND HIGH SERUM LEPTIN LEVELS FOUND IN WOMEN WITH HYPERTENSIVE DISEASES OF PREGNANCY COMPARED TO NORMOTENSIVE PREGNANT WOMEN

Objective: The study aimed to compare serum leptin and adiponectin levels between women with hypertensive diseases of pregnancy (HDP) and normotensive pregnant women and to evaluate their associations with Body Mass Index and blood pressure. Methodology: A cross-sectional study was conducted at the outpatient department of Hayatabad Medical Complex, Peshawar, from 12thAugust 2024 to12th November 2024. A total of 125 participants were divided into two groups: women with hypertensive diseases of pregnancy (HDP; n = 62) and normotensive pregnant women (n = 63). Serum levels of leptin and adiponectin were measured using enzyme-linked immunosorbent assays (ELISA). Body Mass Index (BMI) and blood pressure were recorded and classified. Data were analyzed using descriptive and inferential statistics in SPSS Results: Women with HDP had significantly elevated serum leptin levels (45.2 ± 9.6 ng/mL) and decreased adiponectin levels (3.8 ± 0.9 µg/mL) compared to the normotensive group (leptin: 27.8 ± 7.1 ng/mL; adiponectin: 5.6 ± 1.2 µg/mL). Correlation analysis revealed a positive association between leptin levels, Body Mass Index (BMI), and blood pressure (systolic and diastolic). Conversely, adiponectin levels showed a negative association with BMI and blood pressure. These findings highlight the potential role of these biomarkers in the pathophysiology of hypertension during pregnancy. Conclusion: In conclusion, Elevated levels of leptin and reduced adiponectin are associated with hypertensive diseases during pregnancy. These biomarkers could serve as likely indicators for early detection and management of HDP.

The Association Between Adiponectin Gene Polymorphism (rs1501299) and Metabolic Syndrome.

To investigate the allelic genotypes of the adiponectin (APN) gene polymorphisms (rs1501299) and its association with APN level among Mets patients. A total of 410 patients with Mets and 203healthy subjects were included in the study. The serum APN levels of the subjects were detected using enzyme-linked immunosorbent assay. The polymorphisms of the G/T gene at the rs1501299 locus of the APN gene were detected using restriction fragment length polymorphism polymerase chain reaction technology. The serum APN levels were significantly lower in Mets patients than in the control group (15.0 ± 4.9 mg/L vs 27.2 ± 6.5 mg/L, p < 0.05). The distribution of the three genotypes at the rs1501299 locus was statistically different between the Mets patients and the control group (GG, GT, and TT, p < 0.05), and the frequencies of the T alleles were higher in the Mets patients than in control group (GT and TT, p < 0.05). Logistic regression analysis showed that the study subjects with the T allele had a higher risk of Mets than those with the G allele (OR = 1.85, p < 0.05). The risk of Mets was higher in GT and TT genotypes compared to in GG genotypes (OR = 1.43; OR = 2.14 vs OR = 1.00 ref). Similarly, it increased after combining GT and GG genotypes (OR = 1.73, p < 0.05). The APN levels in the GT (14.3 ± 5.3 mg/L) and TT (13.4 ± 5.4 mg/L) genotypes of the study subjects were lower than those of the GG genotype (15.5 ± 4.8 mg/L, p < 0.05). The occurrence of Mets may be associated with genetic variants at the rs1501299 locus, especially for individuals with G to T variants that reduce APN levels and lead to a higher risk of developing Mets.

Adipokines and Gamma-Glutamyl Transferase as Biomarkers of Metabolic Syndrome Risk in Mexican School-Aged Children.

Background/Objectives: The prevalence of metabolic syndrome in children has been increasing, raising concerns about early detection and clinical management. Adipokines, which are secreted by adipose tissue, play a critical role in metabolic regulation and inflammation, while gamma-glutamyl transferase (GGT), as a liver enzyme, is linked to oxidative stress and metabolic disorders. The objective was to examine the association of circulating adipokines and GGT with metabolic syndrome risk in school-aged children from Northeast Mexico. Methods: A total of 140 children from 6 to 12 years of age in the state of Nuevo León, Mexico, participated in this study. Obesity was classified according to the BMI z-score by the World Health Organization (WHO, 2007), and metabolic syndrome was classified according to the International Diabetes Federation (IDF, 2007). Serum levels of leptin, adiponectin, TNF-α, IL-6, and GGT were measured. Statistical analysis was performed using the Student's t-test, simple linear regression analysis, and receiver operating characteristic (ROC) curve analysis. Results: Among the 140 participants, 60 children (43%) were classified as obese, and of those children with obesity, 55% were diagnosed with metabolic syndrome. Leptin was significantly associated with waist circumference (WC), systolic blood pressure (SBP), serum glucose, triglycerides, and HDL cholesterol (HDL-c). Adiponectin also showed significant associations with WC, SBP, serum triglycerides, and HDL-c. GGT was significantly correlated with WC and HDL-c, while IL-6 and TNF-α did not indicate significance. Associations were observed among leptin, adiponectin, and GGT, highlighting their combined role as potential markers for metabolic syndrome in children. The ROC curve analysis and Youden's index provided cut-off points for these biomarkers: leptin: 8.3665 ng/mL, adiponectin: 9.87 µg/mL, GGT: 17.8 U/L, IL-6 2.77 pg/mL, and TNF-α: 6.68 pg/mL; Conclusions: These findings emphasize the utility of leptin, adiponectin, and GGT as early biomarkers for identifying children with obesity who are at risk of developing metabolic syndrome.

Sodium alginate-based nanoformulation: optimistic approach for enhancing the anti-obesogenic effect of rutin

Background Obesity is a global epidemic that affects all age groups and social classes. Prevention and treatment strategies against obesity have gained little long-term success. Obesity has been shown to be increased rapidly in the last few decades. It is anticipated that by 2030, up to half of the human population will be classified as obese or overweight. Objective This study aimed to develop a polymeric nanoformulation for the oral delivery of rutin in an obese rat model and to explore the anti-obesogenic impact of this nanosized rutin versus free rutin to provide insightful information for understanding the mechanism of action. Materials and methods Sodium alginate-based nanorutin was prepared and characterized by transmission electron microscope and Zetasizer. The obtained rutin nanoformulation and its free form were applied for obesity management in rats fed a high-fat diet. Results and conclusion The data demonstrated that rutin nanoparticles are made up of single spherical units with a diameter that ranged between 96.1 and 157 nm and exhibited negative zeta potential at −16.6 mV. Treatment of obese rats with chitocal, free rutin, or rutin nanoformulation provoked significant reduction in the body weight, thoracic circumference, BMI, and Lee index. Also, they elicited a significant drop in serum cholesterol, triglycerides, low-density lipoprotein, glucose, insulin, insulin resistance, toll-like receptor 4, nuclear factor kappa B, and leptin levels associated with a significant rise in serum adiponectin and spexin levels. Furthermore, treatment of obese rats with chitocal or rutin nanoformulation elicited significant reduction in body length and abdominal circumference along with significant enhancement in serum high-density lipoprotein level. In conclusion, this approach provides a sparkling proof for the anti-obesogenic potential of rutin nanoformulation through its hypolipidemic, hypoglycemic, and anti-inflammatory effects as well as its inhibitory action on hyperleptinemia and adipogenesis. The superior antiobesity impact of the formulated nanorutin than its free form may be attributed to the enhancement of the solubility and bioavailability by nanoencapsulation.

Functional effect of adiponectin and body composition assessment in lung cancer subjects after video-assisted thoracoscopic surgery (VATS) lobectomy.

Lung cancer is a pathology with an important incidence. It is a multifactorial disease characterized by epigenetic and nutritional factors. Indeed, there is a strong association between adipose tissue and the pulmonary system, and low-grade inflammation of obese and/or overweight subjects have a pivotal role in lung cancer establishment. In this study, we analyzed body composition through bioelectrical impedance analysis (BIA) and biochemical parameters such as glycemic and lipidic profile, inflammation profile and adiponectin serum levels in 30 patients (19 male; 11 women) undergoing video-assisted thoracoscopic surgery (VATS) lobectomy for lung cancer from September 2021 to May 2022 at the Thoracic Unit of Luigi Vanvitelli University of Naples. A control group were also recruited (15 male; 15 female) consisting of age and sex matched volunteered subjects at the Thoracic Unit of Luigi Vanvitelli University of Naples. The control group and lung cancer patients were monitored for anthropometric and biochemical parameters before VATS lobectomy. Furthermore, the lung cancer patients were also monitored after 6 months of surgery. Body composition is modified after surgery and also albumin and C-reactive protein (CRP) serum levels. In the overweight patients in our study, adiponectin levels were found to be reduced compared with the control group and increased in the same patients after VATS lobectomy. Tumor removal as well as weight loss could affect adiponectin levels, and thus also a reduction in inflammation. In addition, weight loss could also be due to a psychological condition given by the intervention and not to malnutrition related to therapy.

Impact of Physical Exercise to Reduce the Risk of Gestational Hypertension, A Role of Leptin and Adiponectin

Objective: To investigate the effect of exercise on the blood pressure of new-onset hypertension and non-hypertensive pregnant women and to determine the serum leptin and adiponectin levels and their response to exercise. Methodology: This quasi-experimental cross-over study was conducted at the Department of Gynaecology and Obstetrics, Hayatabad Medical Complex Peshawar. Samples were processed and analyzed at Khyber Girls Medical College Peshawar from January 2022 to April 2022. A total of 140 pregnant females were recruited for this study through convenience sampling. Out of this total, 70 were normotensive for the control group and 70 were hypertensive (gestational hypertensive). All participants were included after taking an informed consent. Results: In normotensive pregnant women, mean systolic and diastolic blood pressure remained normal, and no hypertension developed. In gestational hypertensive women, 70% responded significantly to physical exercise. Post-exercise, Group A saw decreases in systolic BP , diastolic BP , and leptin levels, with an increase in adiponectin. Group B exhibited more pronounced changes by decreased systolic BP, diastolic BP, leptin, and increased adiponectin. Conclusions: We observed that recommended physical exercise during pregnancy is safe and beneficial for maternal health in pregnancy. Physical exercise significantly reduced the progression of GH and brought the serum leptin and adiponectin levels toward normal range. Therefore, physical activity should be encouraged in every healthy woman after addressing potential barriers to exercise during pregnancy.

Assessment of Serum Adiponectin and Leptin in Chronic Periodontitis Over Healthy Individuals

ABSTRACT Objective: The objective of the research was to ascertain whether serum levels of the biochemical markers adiponectin and leptin are related to clinical periodontal characteristics. Materials and Method: For the study, 20 people with chronic periodontitis (Group A) and 20 healthy people (Group B) were enrolled. Assessments were conducted on periodontal markers, including bleeding on probing (POP), gingival index (GI), plaque index (PI), probing pocket depth (PPD), and clinical attachment level (CAL). An enzyme-linked immunosorbent assay (ELISA) test was used to assess the levels of adiponectin and leptin in serum samples. Result: There was significant elevation in average level of leptin in chronic periodontitis in association to that in healthy group. On the other hand, there was considerable decrease in serum adiponectin in group A in association to healthy group. The ratio of leptin\adiponectin was appreciably greater amongst periodontitis group compared to healthy group. Conclusion: The current investigation leads us to the conclusion that the pathophysiology of periodontitis is significantly influenced by serum levels of adiponectin and leptin.

Assessing functional properties of diet protein hydrolysate and oil from fish waste on canine immune parameters, cardiac biomarkers, and fecal microbiota.

Locally produced fish hydrolysate and oil from the agrifood sector comprises a sustainable solution both to the problem of fish waste disposal and to the petfood sector with potential benefits for the animal's health. This study evaluated the effects of the dietary replacement of mainly imported shrimp hydrolysate (5%) and salmon oil (3%; control diet) with locally produced fish hydrolysate (5%) and oil (3.2%) obtained from fish waste (experimental diet) on systemic inflammation markers, adipokines levels, cardiac function and fecal microbiota of adult dogs. Samples and measurements were taken from a feeding trial conducted according to a crossover design with two diets (control and experimental diets), six adult Beagle dogs per diet and two periods of 6 weeks each. The experimental diet, with higher docosahexaenoic (DHA) and eicosapentaenoic (EPA) acids contents, decreased plasmatic triglycerides and the activity of angiotensin converting enzyme, also tending to decrease total cholesterol. No effects of diet were observed on serum levels of the pro-inflammatory cytokines interleukin (IL)-1β, IL-8, and IL-12/IL-23 p40, and of the serum levels of the anti-inflammatory adipokine adiponectin. Blood pressure, heart rate and echocardiographic measurements were similar between diets with the only exception of left atrial to aorta diameter ratio that was higher in dogs fed the experimental diet, but without clinical relevance. Diet did not significantly affect fecal immunoglobulin A concentration. Regarding fecal microbiome, Megasphaera was the most abundant genus, followed by Bifidobacterium, Fusobacterium, and Prevotella, being the relative abundances of Fusobacterium and Ileibacterium genera positively affected by the experimental diet. Overall, results from the performed short term trial suggest that shrimp hydrolysate and salmon oil can be replaced by protein hydrolysate and oil from fish by-products without affecting systemic inflammatory markers, cardiac structure and function, but potentially benefiting bacterial genera associated with healthy microbiome. Considering the high DHA and EPA contents and the antioxidant properties of fish oil and hydrolysate, it would be worthwhile in the future to assess their long-term effects on inflammatory markers and their role in spontaneous canine cardiac diseases and to perform metabolomic and metagenomics analysis to elucidate the relevance of microbiota changes in the gut.

Adiponectin may play a crucial role in the metabolic effects of GLP-1RAs treatment in patients with Type 2 Diabetes Mellitus: a preliminary longitudinal study.

Type 2 diabetes mellitus (T2DM) stands as the most prevalent metabolic disorder globally. T2DM entails numerous cardiovascular complications, which contribute significantly to morbidity, mortality, and increased public spending worldwide. The real challenge for new diabetes drugs lies not only in reducing blood glucose levels and glycated hemoglobin but also in preventing cardiovascular risk. Emerging receptor agonists for glucagon-like peptide-1 (GLP-1RAs) have demonstrated a pivotal role in diabetes management and mitigating cardiovascular risk. We conducted a 12-month longitudinal investigation evaluating the cardio-metabolic effects of GLP-1RAs on a cohort of 65 Caucasian patients diagnosed with T2DM who were scheduled for treatment with GLP-1RAs. Fifty-four T2DM patients successfully completed the 12-month study period, with 30 receiving dulaglutide and 24 receiving semaglutide. In our study population, GLP-1RAs resulted in several positive changes beyond the observed weight loss: a shift in fat distribution, indicated by a reduction in the percentage of visceral fat (1.21 vs. 1.17, p < 0.05); a significant decrease in LDL cholesterol levels (p < 0.05) and triglycerides (p < 0.01); and a significant increase in serum adiponectin levels (p < 0.05), potentially indicating a reduction in insulin resistance and inflammation. Additionally, we observed a significant decrease in microalbuminuria and media-intimal thickness at the carotid vessel level (p < 0.05). In patients with T2DM 1-year therapy with GLP-1RAs has a positive effect on the main determinants of cardiovascular risk including body weight, visceral fat, dyslipidemia, and atherosclerosis. Moreover, the increase in adiponectin may play a pivotal role in controlling the inflammatory state and the mechanisms of vascular damage.

Effect of dietary protein on serum hepcidin and iron in adults with obesity and insulin resistance: A randomized single blind clinical trial.

Background and AimsBoth obesity and iron deficiency are public health problems. The association between the two problems could be explained by chronic low-grade inflammation in obesity, which could stimulate hepcidin expression and modify iron concentration that the consumption of high-protein diets could prevent. Thus, this study aimed to compare the effects of high-protein diets with a predominance of animal or vegetable protein on serum hepcidin and iron concentrations in adults with obesity. Methods and ResultsThis randomized clinical trial involved adults with obesity and insulin resistance, who were assigned to either a high animal protein (AP) group or a high vegetable protein (VP) group for a one-month intervention. Both groups followed a calorie-restricted diet, reducing energy intake by 750 kcal/day. Baseline and final measurements included serum concentrations of hepcidin and iron, biochemical parameters, anthropometric data, and body composition. A total of 33 participants (63% female) were included in the study. Significant weight loss was observed in both groups after the intervention. Adjusted for weight loss percentage, the AP group showed a significant increase in hepcidin concentration (from 22.3 ± 14.7 to 27.5 ± 19.5 ng/mL) compared to the VP group (from 17.9 ± 15.1 to 17.2 ± 10.1 ng/mL) (p < 0.01), with no changes in serum iron concentration. Additionally, the VP diet significantly reduced serum adiponectin (p = 0.04) and C-reactive protein (p = 0.03) levels. ConclusionsIn adults with obesity following the AP diet for one month, hepcidin levels increased without affecting serum iron concentrations. Trial registrationNCT03627104

The Trend of Changes in Adiponectin, Resistin, and Adiponectin-Resistin Index Values in Type 2 Diabetic Patients with the Development of Metabolic Syndrome.

Background and Objectives: This study aimed to investigate the novel adiponectin-resistin (AR) index as a predictor of the development of metabolic syndrome (MetS) in individuals with type 2 diabetes mellitus (T2DM). MetS is common in T2DM and increases cardiovascular risk. Adiponectin and resistin, adipokines with opposing effects on insulin sensitivity and inflammation, make the AR index a potential marker for metabolic risk. Materials and Methods: This prospective observational study included 80 T2DM participants (ages 30-60) from Sarajevo, Bosnia and Herzegovina, over 24 months. The participants were divided into two groups: T2DM with MetS (n = 48) and T2DM without MetS (n = 32). Anthropometric data, biochemical analyses, and serum levels of adiponectin and resistin were measured at baseline and every six months. The AR index was calculated using the formula AR = 1 + log10(R) - 1 + log10(A), where R and A represent resistin and adiponectin concentrations. Logistic regression identified predictors of MetS. Results: T2DM patients who developed MetS showed a significant decline in adiponectin levels (40.19 to 32.49 ng/mL, p = 0.02) and a rise in resistin levels (284.50 to 315.21 pg/mL, p = 0.001). The AR index increased from 2.85 to 2.98 (p = 0.001). The AR index and resistin were independent predictors of MetS after 18 months, with the AR index showing a stronger predictive value (p = 0.007; EXP(B) = 1.265). Conclusions: The AR index is a practical marker for predicting MetS development in T2DM participants, improving metabolic risk stratification. Incorporating it into clinical assessments may enhance early detection and treatment strategies.

A Comparative Study of Serum Adiponectin and Insulin Resistance In Patients With Polycystic Ovary Syndrome

Objective: To assess correlation between serum adiponectin levels and insulin resistance in patients with Polycystic ovary syndrome. Study Design: Comparative Cross-Sectional study. Place and Duration of Study: PNS Hafeez Hospital, Islamabad Pakistan, and Multidisciplinary Lab-I, Department of Biochemistry, Army Medical College Rawalpindi, Pakistan from Feb 2018 to Jan 2019. Methodology: Three groups (35 females each) were formed from selected one hundred and five females (puberty till 25 years) who had Polycystic ovary syndrome. After overnight fast, blood samples were collected to measure serum levels of insulin and adiponectin. Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) was used to calculate insulin resistance. Results: The over-weight PCOS subgroup displayed lowest serum adiponectin level (8.73±2.13 mg/L; 13.87±3.60 mg/L in normal weight PCOS and 15.09±3.07 mg/L in controls). There was statistical significance of serum Fasting Blood Glucose (mmol/L, p=0.002), serum Insulin (mIU/L; p=0.003) andserum Adiponectin levels (mg/L; p˂0.001) and HOMA-IR (p&lt;0.001) among three groups. The over-weight PCOS subgroup presented with highest HOMA-IR (1.71±0.19; 1.35±0.25 in normal weight PCOS subgroup and 1.12±0.26 in controls). There is negative correlation between serum adiponectin and HOMA-IR with r= -0.46. Conclusion: In PCOS-affected females, HOMA-IR correlates inversely with serum adiponectin levels, signifying that abdominal adiposity indirectly favors insulin resistance in PCOS through decrease in adiponectin secretion. Serum adiponectin level is negatively associated with severity of IR in PCOS.

The relationship of serum adiponectin and leptin levels with pain, function and intervertebral disc degeneration in patients with chronic low back pain

Objectives: The aim of this study was to investigate the relationship between serum adiponectin and leptin levels, which are cytokines released from fatty tissue, and pain, function and intervertebral disc degeneration (IVDD). Patients and methods: Between January 2018 and November 2019, a total of 85 patients (34 males, 51 females; mean age: 42.1±10.7 years; range, 18 to 62 years) who were diagnosed with IVDD and 84 healthy volunteers (34 males, 50 females; mean age: 41.9±10.7 years; range, 22 to 64 years) were included in this cross-sectional study. The Visual Analog Scale (VAS, 0-10 cm) and Oswestry Disability Index (ODI) scales were used in the patient group. Serum adiponectin and leptin levels were measured in all participants. The grading of IVDD was determined using the Pfirrmann Classification. Results: There was no significant difference in serum adiponectin (p=0.35) and leptin (p=0.19) levels between the patient group and the control group. No relationship was found between serum adiponectin and leptin levels and pain intensity (VAS), pain duration, and disability (ODI) in patients with low back pain. No relationship was found between the severity of IVDD as evidenced by magnetic resonance imaging (MRI) and adiponectin (p=0.18) and leptin (p=0.11) levels. There was a positive correlation between the severity of disc degeneration and body mass index (r=0.35, p=0.008) and waist circumference (r=0.34, p=0.01). Conclusion: Serum adipokine levels were not associated with low back pain symptoms and IVDD severity as evidenced by MRI. These findings suggest that the effects of obesity on chronic low back pain and disc degeneration cannot be explained by systemic inflammatory effects alone.

CCN5/WISP2 serum levels in patients with coronary artery disease and type 2 diabetes and its correlation with inflammation and insulin resistance; a machine learning approach

IntroductionStudies have shown various effects of CCN5/WISP2 on metabolic pathways, yet no prior investigation has established a link between its serum levels and CAD and/or T2DM. Therefore, this study seeks to explore the relation between CCN5 and the risk factor of CAD and/or diabetes, in comparison to individuals with good health, marking a pioneering endeavor in this field. MethodsThis case-control study investigates serum levels of CCN5, TNF-α, IL-6, adiponectin, and fasting insulin in a population of 160 individuals recruited into four equal groups (T2DM, CAD, CAD-T2DM, and healthy controls). Statistical tests comprise Chi-square tests, ANOVA, Spearman correlation, and logistic regression. ROC curves were used to represent the diagnostic potential of CCN5. Disease states are predicted by machine learning algorithms: Decision Tree, Gradient Boosted Trees, Random Forest, Naïve Bayes, and KNN. These models' performance was evaluated by various metrics, all of which were ensured to be robust by applying 10-fold cross-validation. Analyses were done in SPSS and GraphPad Prism and RapidMiner software. ResultsThe CAD, T2DM, and CAD-T2DM groups had significantly higher CCN5 concentrations compared to the healthy control group (CAD: 336.87 ± 107.36 ng/mL, T2DM: 367.46 ± 102.15 ng/mL, CAD-T2DM: 404.68 ± 108.15 ng/mL, control: 205.62 ± 63.34 ng/mL; P < 0.001). A positive and significant correlation was observed between CCN5 and cytokines (IL-6 and TNF-α) in all patient groups (P < 0.05). Multinomial logistic regression analysis indicated a significant association between CCN5 and T2DM-CAD, T2DM, and CAD conditions (P < 0.001) even after adjusting for gender, BMI, and age (P < 0.001). Regarding the machine learning models, the Naïve Bayes model showed the best performance for classifying cases of T2DM, achieving an AUC value of 0.938±0.066. For predicting CAD, the Random Forest classifier achieved the highest AUC value of 0.994±0.020. In the case of CAD-T2DM prediction, the Naïve Bayes model demonstrated the highest AUC of 0.981±0.059, along with an Accuracy of 97.50 % ± 7.91 % and an F-measure of 96.67 % ± 10.54 %. ConclusionOur study has revealed, for the first time, a positive connection between CCN5 serum levels and the risk of developing T2DM and CAD. Nonetheless, more research is needed to ascertain whether CCN5 can serve as a predictive marker.

The potential of fibroblast growth factor-21 and adiponectin as diagnostic biomarkers for type 2 diabetes mellitus: differential levels in response to treatments

BackgroundDiabetes mellitus (DM) is a global epidemic disease affecting millions each year. Recent studies have suggested novel biomarkers that are linked to DM. This study aimed to measure the levels of fibroblast growth factor-21 (FGF-21) and adiponectin in the blood of patients with type 2 DM and to assess the variations in their levels in response to the type of treatments. The possible correlations with several biochemical parameters and the diagnostic potential of FGF-21 and adiponectin as biomarkers for DM were also investigated. Eighty subjects were classified into control, Type 2 DM patients who were treated with metformin, Type 2 DM patients who were treated with metformin + oral hypoglycemic agents (OHAs), and Type 2 DM patients who were treated with insulin + metformin + OHAs.ResultsThe metformin + OHAs group and the insulin + metformin + OHAs group had higher levels of FGF-21 when compared to the control group. The metformin + OHAs also had significantly higher adiponectin levels when compared to the control or metformin groups. The serum levels of FGF-21 in the diabetic subjects were negatively correlated with LDL, direct bilirubin, albumin, and insulin levels and positively correlated with the duration of DM. However, the serum levels of adiponectin in the diabetic subjects were negatively correlated with weight while positively correlated with potassium levels. Remarkably, FGF-21 and adiponectin were effective biomarkers for diagnosing DM with a specificity of 100% and 90% and sensitivity of 52.3% and 64.5%, respectively.ConclusionThese findings suggest that FGF-21 and adiponectin play crucial roles in DM diagnosis and prognosis and that their levels change depending on the treatment type.