Obese Control Group Research Articles

Altered Microbiome Signature in Cushing's Syndrome Persists Beyond Remission

Abstract Context Patients with Cushing's syndrome (CS) suffer from metabolic and cardiovascular comorbidities caused by hypercortisolism. The human gut microbiome responds to different pathological conditions. Objective The aim of our study was to analyze the effect of chronic endogenous cortisol excess on the gut microbiome. Methods We prospectively recruited 18 patients with endogenous CS of different etiologies (mainly pituitary CS, n = 13). Patients provided a stool sample during active CS and 1 to 2 years after successful surgical treatment being in biochemical remission. In addition, 36 patients, in whom CS was excluded, served as an obese control group and 108 samples from healthy lean students were used as a reference group. Amplicons of the V3/V4 region of the 16S ribosomal RNA gene, from every sample, were sequenced and clustered into operational taxonomic units. The microbial profiles of CS patients were then compared to the control and reference groups using R scripts. Results In comparison to lean references, the gut microbiome of patients with florid CS demonstrated a disturbed microbial profile. Microbial dysbiosis of patients with CS was maintained even after biochemical remission following curative surgery. Conclusion Patients with CS have a distinct and disturbed gut microbiome that persists even after surgery, indicating a possible target for additional probiotic interventions to accelerate convergence to a healthy microbiome.

Short-Term Changes in TNF-Alpha, IL-6 and Adiponectin Following Bariatric Surgery in Caucasian Obese Adults: An Observational Case-Control Study.

Background and Objectives: Overweight and obesity are well-known conditions that negatively impact the health and lifestyle of an individual. Bariatric surgery is one of the most efficient weight loss techniques. Besides the main effect on the bodyweight, improvement in the levels of inflammatory biomarkers, such as interleukin 6 (IL-6), tumor necrosis factor alpha (TNFalfa), and others, has been observed. The purpose of this study was to establish the correlations between obesity-linked chronic systemic inflammation (estimated with inflammatory cytokine levels) and the weight loss process after metabolic surgery. Materials and Methods: An observational cohort study included two categories: the patients with obesity-bariatric group and the patients without obesity-control group. The study was performed between 1 February 2021 and 1 March 2023. Baseline characteristics, anthropometrics, biochemical assessment and inflammatory biomarkers were measured both before surgery and one year after the procedure, in the case of the bariatric group. The control group was assessed in the same period as the pre-surgery bariatric group. The bariatric group underwent two types of bariatric procedures: the majority underwent laparoscopic sleeve gastrectomy whereas a select few underwent one anastomosis laparoscopic gastric bypass. Results: We performed a prospective study comprising 55 Caucasian patients-from which 33 patients had morbid obesity, a mean age of 41.76 ± 10.78 and a mean BMI of 43.34± 7.51 kg/m2. The preoperative levels of IL-6 were positively correlated with waist circumference (r = 0.354, p = 0.043), weight (r = 0.549, p = 0.001) and BMI (r = 0.520, p = 0.002). After applying the Kruskal-Wallis test and Dunn's test, significant differences for IL-6 (p = 0.010) and adiponectin (p = 0.024) were obtained for values recorded pre- and post-surgery. No correlation was found between adiponectin, IL-6, TNF- α levels and anthropometric indices after surgery. Our study showed that bariatric surgery significantly changes the values of inflammatory cytokines one year after surgery. Nevertheless, we did not find significant correlations between the baseline values of these inflammatory markers and the weight loss process after surgery at a short-term (one-year) follow-up. Conclusions: Our study demonstrated that bariatric surgery significantly changes the level of inflammatory cytokines one year after operation. We demonstrate that preoperative levels of IL-6 are positively correlated with age, WC, and BMI.

The temporal changes in mean platelet volume after bariatric surgery

Aim: Studies on obese individuals have proposed a correlation between weight loss and variations in mean platelet volume (MPV). Therefore, this study aimed to examine the changes in MPV in morbidly obese patients who underwent weight loss via bariatric surgery. Material and Methods: A total of 328 morbidly obese patients who underwent sleeve gastrectomy (morbidly obese group) and were retrospectively evaluated from January 2010 to November 2014. The control group consisted of 53 non-obese patients who had laparoscopic cholecystectomy. Body mass index values and MPV values at preoperative (baseline), postoperative 1st month, 3rd month, and 12th month for both groups were documented. Results: The baseline MPV values were comparable between morbidly obese group and control group (8.8 ± 1.8 vs. 8.6 ± 1.2, p = 0.283). In control group, there was no significant change in MPV levels during the 12-month follow-up. In morbidly obese group, mean MPV levels at the 1st and 3rd months post-surgery were similar, showing an increase compared to baseline levels. By the 12th month, mean MPV levels tended to decrease, becoming comparable to baseline values. Conclusion: MPV levels increased in the early postoperative period following sleeve gastrectomy, they returned to baseline by the 12th month. These findings suggest that weight loss from bariatric surgery may influence MPV levels, but this effect normalizes over time.

Sleeve gastrectomy prior to primary total hip and total knee arthroplasty is associated with increased risk of early complications

AimsThe purpose of this study was to determine the association between prior sleeve gastrectomy in patients undergoing primary total hip and knee arthroplasty, and 90-day complications, incidence of revision arthroplasty, and patient-reported outcome scores at final follow-up.MethodsThis is a retrospective, single-centre analysis. Patients undergoing primary hip or knee arthroplasty with a prior sleeve gastrectomy were eligible for inclusion (n = 80 patients). A morbidly obese control group was established from the same institutional registry using a 1:2 match, for cases:controls with arthroplasty based on propensity score using age, sex, pre-sleeve gastrectomy BMI, Current Procedural Terminology code to identify anatomical location, and presurgical haemoglobin A1C. Outcomes included 90-day complications, incidence of revision arthroplasty, and patient-reported outcome scores at final follow-up. Multivariable logistic regressions evaluated associations of underlying preoperative demographic and treatment characteristics with outcomes.ResultsComplications within 90 days of surgery were increased in the sleeve gastrectomy group relative to the obese control group after controlling for underlying preoperative demographic characteristics (odds ratio (OR) 4.00 (95% CI 1.14 to 13.9); p = 0.030). Postoperative revisions were similar in the sleeve gastrectomy group relative to the obese control group after controlling for underlying preoperative demographic characteristics (OR 17.8 (95% CI 0.64 to 494.3); p = 0.090). Patient-Reported Outcomes Measurement Information System (PROMIS) depression decreased by a greater amount from pre- to postoperative in the obese controls relative to the sleeve gastrectomy group (OR 4.04 (95% CI 0.06 to 8.02); p = 0.047). PROMIS pain interference and physical function change from pre- to postoperative was not associated with sleeve gastrectomy status.ConclusionWe found a higher rate of complications at 90 days in patients who underwent sleeve gastrectomy prior to primary hip or knee arthroplasty relative to a matched, obese control population. Prosthetic revision rates were similar between the two groups, while improvements in PROMIS depression scores were larger in the obese cohort. This study suggests that sleeve gastrectomy to achieve preoperative weight loss prior to arthroplasty surgery may not mitigate early complication risks in obese patient populations.Cite this article: Bone Joint J 2024;106-B(9):935–941.

Body Mass Index Improvement Reduces Total Knee Arthroplasty Complications Among Patients Who Have Extreme, but Not Severe, Obesity

BackgroundWhile morbid obesity has been associated with increased complication risk in primary total knee arthroplasty (TKA), limited evidence is available to attribute decreased surgical complication rates with body mass index (BMI) reduction. MethodsWe retrospectively assessed 464 unilateral TKAs performed in morbidly obese patients, including 158 extremely obese (BMI ≥ 45) and 306 severely obese patients (BMI 40 to 44.9). A detailed medical record review identified concurrent modifiable risk factors and successful preoperative BMI reduction, reaching either a contemporary risk target (BMI < 40) or an institutionally accepted threshold (BMI < 45). Postoperative blood glucose levels and 1-year adverse outcomes (periprosthetic joint infection, wound dehiscence, knee manipulation, periprosthetic fracture) were compared to 557 contemporary control subjects with expected slightly lower (moderate obesity, BMI 35 to 39.9) or sufficiently lower complication risk (overweight, BMI 25 to 29.9). ResultsPeriprosthetic joint infection and postoperative hyperglycemia were identified more frequently among morbidly obese patients in comparison with a moderately obese control group. Extremely obese patients (BMI ≥ 45) whose BMI improved below 45 had no measurable difference in infection risk from the control group (odds ratio [OR] 0.84, 95% confidence interval [CI] 0.04 to 16.88), while those with a nonimproved BMI had a significantly higher risk (OR 7.70, 95% CI 1.89 to 31.41). No significant differences in the risk for infection were observed between severely obese patients (BMI 40 to 44.9) with preoperative BMI improvement (1.5% rate, OR 1.70, 95% CI 0.17 to 16.57) or nonimprovement (1.7% rate, OR 1.87, 95% CI 0.41 to 8.43). ConclusionsPreoperative medical optimization may decrease postoperative TKA complications. The findings of this study support BMI improvement for extremely obese patients (BMI ≥ 45). The assignment of 40 BMI as a threshold for otherwise healthy patients may exclude patients from potential surgical benefits without realizing risk reduction.

The potency of Thymus vulgaris seed extract in alleviating obesity complications and iron overload in obese rats

Natural products have long been recognized as valuable sources of bioactive compounds in therapeutic agents. Thymus vulgaris, commonly known as thyme and belonging to the Lamiaceae family, is widely distributed and extensively used in Egyptian folk medicine for its antibroncholitic, antispasmodic, carminative, and diuretic properties. However, there is a lack of research on the effects of T. vulgaris seed extract in mitigating obesity-induced iron overload in rats. Given its potent bioactive constituents, this study aimed to investigate the impact of T. vulgaris seed extract on iron overload associated with obesity by evaluating lipid profiles, iron status parameters—including plasma ferritin, total iron-binding capacity (TIBC), plasma transferrin, transferrin saturation percentage (TS%), and hepcidin gene expression in adipose tissue. About 30 flavonoids were identified in T. vulgaris seed extract using LC-MS. Among these, methoxyflavonoids were the most abundant metabolites. The administration of T. vulgaris seed extract to obese rats resulted in significant reductions in anthropometric features, hepcidin gene expression, cholesterol, triglycerides, low-density lipoprotein (LDL), TIBC, plasma ferritin, leptin, and iron and copper content in adipose tissue. Moreover, treatment with T. vulgaris extract led to a notable decrease in interleukin-6 (IL-6) levels (76.33 ± 4.31 ng/L and 40.83 ± 1.82 ng/L for low and high doses, respectively) compared to the obese control group (110.83 ± 5.82 ng/L). Conversely, plasma adiponectin levels were significantly increased with T. vulgaris supplementation (123.6 ± 7.9 µg/L and 217.4 ± 6.1 µg/L for low and high doses, respectively) compared to the obese group (54.6 ± 4.9 µg/L). Additionally, adipose tissue zinc levels were significantly elevated in response to T. vulgaris supplementation (2.54 ± 0.20 µg/g and 3.75 ± 0.14 µg/g for low and high doses, respectively) compared to the obese group (1.45 ± 0.23 µg/g). Our findings suggest that T. vulgaris could be a promising novel therapeutic agent for managing obesity-induced iron overload.

Leptin, Ghrelin, Irisin, Asprosin and Subfatin Changes in Obese Women: Effect of Exercise and Different Nutrition Types.

Background and Objectives: In this study, the effects of a six-week training program and various diets on subfatin, asprosin, irisin, leptin, ghrelin and the lipid profile were investigated in overweight women. Materials and Methods: A total of 78 women voluntarily participated in the study. Groups: The study was divided into eight groups: Healthy Control, Obese Control, Obese + Vegetarian, Obese + Ketogenic, Obese + Intermittent Fasting, Obese + Exercise + Vegetarian, Obese + Exercise + Ketogenic and Obese + Exercise + Intermittent Fasting. While there was no intervention in the healthy and obese control groups, the other groups followed predetermined exercise and diet programs for 6 weeks. Blood samples were taken from the participants in the research group twice (before and after the interventions). An autoanalyzer was used to determine the lipid profile in the blood samples taken, and the ELISA method was used to analyze other parameters. Results: Overall, a significant difference was found in the values of weight, BMI, subfatin, ghrelin, leptin, cholesterol, triglyceride, HDL and LDL as a result of the exercise and diet interventions (p < 0.05). There was no significant difference in asprosin and irisin values (p > 0.05). Conclusions: In conclusion, regular exercise and dietary interventions in obese women can regulate lipid profile, ghrelin, leptin and asprosin levels, and increasing irisin with exercise can activate lipid metabolism and support positive changes in lean mass.

دراسة دور الهيم اوكسجينيز-1 في المرضى الذين يعانون من السمنة

الهيم اوكسجينيز-1 هو عبارة إنزيم محفز يعمل على تكسر جزيئات الهيم إلى بيليفيردين، وحديدالحر، وبيليروبين، وأول أكسيد الكربون. تهدف هذه الدراسة إلى معرفة مستويات ودور (HO-1) في مرضى السمنة ضد الإجهاد التأكسدي وعلاقته بالسمنة. تضمنت الدراسة 139 عينة تضم (84بدناء و55 اشخاص غير بدناء). تم تقسيم كلا مجاميع الدراسة قسمت إلى أربع مجاميع بالاعتماد على مؤشر كتلة الجسم. تم جمع عينات الدم اشخاص بدناء ومجاميع صحية (رجال ونساء) في مستشفى اليرموك والمركز الصحي لأبحاث السكري في الفترة بين ديسمبر2022/ الى يونيو/2023. تم قياس بعض المتغيرات الكيميائية الحيوية لجميع مجموعات الدراسة، والتي تشمل: - تحديد مستويات HO-1 في المصل باستخدام تقنية ELISAو ملف الدهون والسكر الصائم FSG بالطريقة الانزيمية. حيث وجد أن مستويات مؤشر كتلة الجسم تزداد بشكل ملحوظ في مجموعة السمنة من النوع الثاني ومجموعة السمنة من النوع الأول ومجموعة الوزن الزائد مقارنة بمجاميع وزن الطبيعي. كما أظهرت النتائج زيادة معنوية (p≤ 0.05) في محيط الخصر الى الورك (WHR) في مجاميع السمنة من النوع الثاني والسمنة من النوع الأول ومجموعة الوزن الزائد مقارنة بمجوعة الوزن الطبيعي. كذلك أظهرت النتائج أن مستويات HO-1 عالية في مرضى السمنة من النوع الاول ومجموعة السمنة من النوع الثاني مقارنةً مع مجاميع الوزن الطبيعي الوزن الزائد. اظهر التحليل الاحصائي أن مستوى HO-1 ترتبط سلبيا مع مؤشر كتلة الجسم في مجموعة الوزن الطبيعي G1))، بينما إيجابية مع مجاميع السمنة من النوع الثاني والسمنة من النوع الأول والوزن الزائد. نستنتج من هذه الدراسة أن خط دفاع الجسم الأول ضد هجوم الإجهاد التأكسدي هو HO-1. هذا الإنزيم الواقي للخلايا يقلل من الإجهاد التأكسدي وهو حيوي للتحكم في تكون الدهون، وهو أمر حاسم لتطور أمراض التمثيل الغذائي ومضاعفاتها.

The Influence of Catechin on Adiponectin and Insulin Resistance in Obese Rats

Obesity represented as an abnormal accumulation of visceral fat. The synthesis of adiponectin has been linked to visceral fat accumulation. Obesity, and cardiovascular disease have all been linked to decreased levels of adiponectin. This study included the effect of catechin administration for 30 days on lipid profile, glucose, adiponectin and insulin serum levels as well as IR of obese female rats. Twenty female rats were conducted to the experiment where divide to four equal groups as; negative normal group received normal diet for all experiment time (60 days); positive obese control group received high fat diet (HFD) for (60 days); GTC-fed group fed HFD; ATV-fed group this group received ATV as cholesterol lowering drug. The significant differences considered at (p &lt; 0.05 with 95% CI). The study revealed that the levels of Total-Ch, triglycerides and glucose were significantly higher in positive than negative control group. Additionally, a significant decreased Total-Ch, triglycerides and glucose level of Catechin treatment group than positive control group. Moreover, a significant reduction of adiponectin means levels obtained in positive control group compared to negative control and Catechin treatment groups. Furthermore, a significant difference of IR obtained between means of positive control group with Catechin treatment group. HDL-C levels were also differed significantly between positive control groups and Catechin treatment group. In conclusion this study exposed a positive influence of catechin administration on obesity lethal factors such as cholesterol, hyperglycemia, IR and the serum concentration of adiponectin in obese female rats.

The Effects of Intermittent Fasting on the Size and Number of Subcutaneus Adipocytes in Obese Mouse Models

Highlights:1. This study helps bridge the gap between systemic effects and tissue-level changes, providing a deeper understanding of how histological analysis can be used to explore the effects of intermittent fasting on adipocytes and body weight regulation.2. This study contributes to obesity management through lifestyle modification, specifically intermittent fasting, by focusing on histological changes in adipose tissue. Abstract The accumulation of adipose tissue can have deleterious effects and lead to obesity. Intermittent fasting (IF), an approach that involves time-restricted eating, has gained popularity as an obesity treatment option because it enhances insulin sensitivity and promotes beneficial changes in glucose metabolism. This study used a time-restricted meal intake (TRM) approach to assess the effects of IF on the histological features of obese mouse models' subcutaneous inguinal adipose tissue. The investigation employed an in vivo experimental posttest-only control group design. Twenty male mice were divided into four groups: a normal control group, an obese control group, a TRM group with a high-fat diet (TRM-HF), and a TRM group with a standard diet (TRM-S). The TRM treatment was administered for fourteen days, with a fasting window from 4 p.m. to 8 a.m. The pre- and post-treatment weight analyses were conducted using the paired t-test for normally distributed data and the Wilcoxon test for non-normally distributed data (p&lt;0.05). One-way analysis of variance (ANOVA) was employed for unpaired data on the post-treatment weight. Per field of view, there were an average of 120,500 cells (49,700–136,200) in the normal control group, 68,380±9,194 cells in the obese control group, 70,860±11,029 cells in the TRM-HF group, and 79,360±5,112 cells in the TRM-S group. The average cell sizes (μm3) were 56,730.142±19,273.257 in the normal control group, 138,934.331±27,670.558 in the obese control group, 106,827.767±20,580.501 in the TRM-HF group, and 68,689.114±8,219.727 in the TRM-S group. The number of cells in each group did not differ significantly, but there were significant variations in cell size. The mice receiving TRM treatment did not exhibit substantial body weight changes, whereas the obese control group showed a significant body weight increase. In conclusion, TRM has an effect on cell size but does not affect the quantity of adipocytes in subcutaneous inguinal fat tissue.

Association Between rs2278426 Polymorphism of the ANGPTL8 Gene and Polycystic Ovary Syndrome.

To study the relationship between the single nucleotide polymorphism (SNP) rs2278426 in the angiopoietin-like protein 8 gene (ANGPTL8) and polycystic ovary syndrome (PCOS). A total of 122 patients with PCOS and 108 controls were recruited for comparison of glucose, lipid, insulin, sex hormone, and ANGPTL8 levels. Polymerase chain reaction (PCR) and gene sequencing were performed for comparison of the frequency of the CC, CT, and TT rs2278426 genotypes and the rs2278426 allele distributions between the PCOS and control groups and between the obese and non-obese subgroups of the PCOS and control groups. The frequency of the T allele was significantly higher in the PCOS group than that in the controls (P = 0.037). In the dominant genetic model, the proportion of the CT+TT genotype in the PCOS group was significantly higher than that in the controls (P = 0.047). Subgroup analysis demonstrated that the T allele proportion was significantly higher in obese PCOS group than obese control group (P = 0.027). PCOS with the CT+TT genotype had significantly higher body mass index (BMI; P = 0.001), triglyceride (TG; P = 0.005), homeostasis model assessment of insulin resistance (HOMA-IR; P = 0.035), testosterone (P = 0.041), and ANGPTL8 (P = 0.037) levels and significantly lower high-density lipoprotein (HDL) levels (P = 0.025) than PCOS with the CC genotype. Obese PCOS group with the CT+TT genotype had significantly higher TG (P = 0.015), luteinizing hormone (LH; P = 0.030), fasting insulin (FINS; P = 0.039), HOMA-IR (P = 0.018), and ANGPTL8 (P = 0.049) levels than obese PCOS group with the CC genotype. Polymorphisms of rs2278426 may induce glycolipid metabolic disorders by affecting ANGPTL8 levels and functions in Han Chinese females with obesity from the Shandong region, increasing the risk of PCOS in this population.

Effect of High-Intensity Interval Training on TCF7L2 Gene Expression in Hepatocytes of Obese Rats

&#x0D; &#x0D; &#x0D; Objective: Hepatic glucose release is greatly increased in the presence of obesity and related diseases. The research objective was to explore the impact of high intensity interval training (HIIT) on TCF7L2 gene expression in hepatocytes of obese rats.&#x0D; Materials and Methods: Out of 21 male Wistar rats aged 10 weeks years (220±10 g), obesity was induced in 14 rats by 8-week high-fat diet. The rats were then divided into normal (n=7), obese control (n=7), and HIIT obese (n=7) groups. Rats in the HIIT group completed 8 weeks of HIIT/5 days weekly, whereas the other groups were inactive. After intervention, TCF7L2 gene expression in hepatocytes, insulin resistance and glucose compared using ANOVA /Tukey’s post hoc test between groups by SPSS-22.&#x0D; Results: Obesity induction led to a significant decrease in TCF7L2 gene expression (P: 0.011) and an increase in blood glucose (P: 0.009) and insulin resistance (P: 0.019) compared with the normal group (P&lt; 0.001). On the other hand, interval training led to a significant increase in TCF7L2 gene expression (P: 0.029) and a decrease in blood glucose (P&lt; 0.001) and insulin resistance (P&lt; 0.001) in the obese group compared with the control group.&#x0D; Conclusion: The observed enhancement in fasting blood glucose levels among obese rats could be linked to increased TCF7L2 gene expression in liver cells, which appears to be a response to interval training intervention. Nevertheless, understanding the main mechanisms responsible for observed changes requires further studies in this field.&#x0D; &#x0D; &#x0D;

Amelioration of obesity induction by a high-fat diet and related inflammation by Phasa fish (Setipinna phasa) oil in BALB/c mice.

We have extracted and characterized Phasa fish (Setipinna phasa) oil for the first time to evaluate the anti-obesity and related anti-inflammatory effects on obese mice. Inbred male albino BALB/c mice were segregated into three categories: control (C), Obese control group (OC), and Phasa fish oil treated group (TX). To establish the potentiality of Setipinna phasa oil for its anti-obesity and anti-inflammatory properties, it was extracted and characterized using GC-MS method. To evaluate the anti-obesity effect, different parameters were considered, such as body weight, lipid composition, obesity, and obesity associated inflammation. The physicochemical characteristics of Phasa fish oil revealed that the oil quality was good because acid value, peroxide value, p-anisidine value, Totox value, refractive index, and saponification value were within the standard value range. The GC-MS study explored the presence of fatty acids beneficial to health such as Hexadec-9-enoic acid; Octadec-11-enoic acid; EPA, DHA, Methyl Linolenate, etc. The application of Setipinna phasa oil on the treated mice group acutely lowered body weight and serum lipid profile compared to the obese group. In connection with this, leptin, FAS, and pro-inflammatory cytokines TNF-α genes expression were downregulated in the treated group compared to the obese group. The Phasa oil treated group had an elevated expression of PPAR-α, adiponectin, LPL gene, and anti-inflammatory markers IL-10 and IL-1Ra compared to the obese group. This study suggests that Phasa fish oil, enriched with essential fatty acid, might be used as an anti-obesity and anti-inflammatory supplement.

Influence of coffee roasting degree on antioxidant and metabolic parameters: Comprehensive in vitro and in vivo analysis

This study aimed to assess the impact of roasting degree on antioxidant and metabolic parameters in vitro and in vivo. In vitro, we evaluated radical scavenging, lipid peroxidation, and the activity of digestive enzymes (α-glucosidase, α-amylase, and lipase). In vivo, we first examined coffee's effect on carbohydrate and lipid absorption in healthy rats, followed by a chronic evaluation of metabolic disorders and antioxidant markers using a diet-induced obesity model. In vitro results revealed that increased roasting degree reduced the antioxidant capacity of coffee brews. All brews showed lower inhibition of α-glucosidase and α-amylase, and lipase inhibition compared to the positive control (acarbose or orlistat). In vivo, all roasting degrees consistently reduced postprandial glucose levels by 20%. Notably, coffee with a high roasting degree (HRD) decreased serum triglycerides (TG) by ∼44% after a lipid load, while other roasts did not. Chronic administration of unroasted (UN) or HRD coffee significantly reduced weight gain compared to the obese control (∼15% and ∼10%, respectively). Notably, all coffee samples improved lipid metabolism parameters. UN and HRD coffee significantly decreased adipocyte volume by 58% and 48%, respectively, compared to the obese control. Additionally, all groups exhibited less than 30% hepatic lipid droplets independent of roasting degree. HRD treatment notably increased liver catalase (CAT) activity and reduced lipid peroxidation in serum (∼90%), liver (∼59%), and adipose tissue (∼37%) compared to the obese control group. These findings suggest that HRD in coffee may confer certain biological advantages.

Hop (Humulus lupulus L.) extract reverts glycaemic imbalance and cognitive impairment in an animal model of obesity.

The rates of overweight and obesity around the world have increased in past years. The body's adipose tissue stimulates the antioxidant and oxidation imbalance capacity at the cellular level. This scenario favors an inflammatory low-grade systemic condition starting with insulin resistance, which in turn may involve diabetes mellitus type 2 and cognitive decline afterward. Neurological diseases have been correlated to senile age diseases over time. This scenario calls for a change in the incidence of obesity in the younger generation. An unhealthy dietary consumption together with sedentary habits might lead to poor gut absorption of nutrients. Several plants and foods have bioactive compounds that can reduce or inhibit radical scavengers, reactive oxygen species, and metal ion complexes that threaten the cerebral defense system. The bitter acids from hops (Humulus lupulus L.) have been demonstrated to have promising effects on lipid and carbohydrate metabolism improvement, reducing inflammatory responses through alpha acids, beta acids, and analogs action. Therefore, the current study aimed to investigate the bioactivity of hop bitter acids in obese and lean mice. For that, a dry hop extract (DHE) was obtained by applying carbon dioxide as the fluid of supercritical extraction. Afterward, seventy-eight male mice of the C57BL/6J strain were weighed and randomly distributed into six groups of 13 animals each according to the diet offered: (NO) normolipidic diet, (NO1) normolipidic diet containing 0.35% alpha acids, (NO2) normolipidic diet containing 3.5% alpha acids, (HP) hyperlipidic diet, (HP1) hyperlipidic diet containing 0.35% alpha acids, and (HP2) hyperlipidic diet containing 3.5% alpha acids. After applying the glycemic tolerance and insulin tolerance tests, a better stabilization of glycemia levels and weight gain among those animals fed with DHE (NO2 and HP2) were observed in comparison to the obese control group (HP) (p < 0.05). There was also an amelioration of antioxidant capacity observed by checking the enzymatic profile by SOD and an apparent mitigation of brain degeneration by checking GSK3β and p-IRS1 proteins expression (p < 0.05). The y-maze cognitive test applied to highlight possible obesity-harmful animal brains did not indicate a statistical difference between the groups. Although the weekly dietary intake between the obese HP2 group (33.32 ± 4.11, p < 0.05) and control HP (42.3 ± 5.88, p < 0.05) was different. The bioactive compounds present in DHE have demonstrated relevant effects on glycemic control, insulin signaling, and the consequent modulatory action of the obesity-related markers with the brain's inflammatory progression.

Obesity-Related Type 2 Diabetes Mellitus and HHEX Gene rs1111875 C/T Polymorphisms in Iraqi Population.

type 2 diabetes mellitus(T2DM) is a complex metabolic disease. Diabetes mellitus has quadrupled globally in the last three decades. Many studies have shown how genetic diversity contributes to the development and progression of T2DM. The hematopoietic expressed homeobox (HHEX) gene is hypothesized to be linked to the risk of T2DM. The aim of this study was to look at the association of the HHEX gene polymorphism (rs1111875 C/T) with T2DM in the Iraqi population and see if obese individuals were affected more than other patients. Methods: 100 T2DM obese and 100 controls obese. The RFLP -PCR assay Technique was used to genotype HHEX rs1111875 C/T, making use of newly-designed primers. Results: The study's parameters demonstrate no significant difference between T2DM obese and obese control groups. The study concluded that there is no significant difference in genotypes Codominant, Dominant, Recessive, and Additive genotype between groups for HHEX rs1111875 C/T. and Chol, TG, and VLDL were significant between CC and CT, age was borderline. There is a negative relationship between (BMI and CHO and TG) and (insulin and HOMA-IR and LDL, VLDL). In conclusion, according to the findings of this study, the rs1111875 C/T polymorphism in the HHEX gene revealed no significant difference in genotypes in any of the codominant, dominant, recessive, or additive models.

Effect of aerobic and resistance training on secreted protein acidic rich in cysteine, decorin, and myonectin muscle genes expression in rats fed with a high-fat diet

Background and aims: Fatty diet can affect the expression of myokines. Thus, the aim of this study was to evaluate the effect of aerobic and resistance training secreted protein acidic rich in cysteine (SPARC), decorin (DCN), and myonectin muscle gene expression in rats fed with a high-fat diet. Methods: In this experimental study, 32 rats were randomly divided into healthy control, obese control, obese+aerobic exercise, and obese+resistance exercise groups. The training program was implemented for 4 weeks at aerobic moderate intensity (50% VO2max in the first week and 65% VO2max in the last week). For resistance training, the animals were also trained to climb the ladder (height 110 cm, slope 80%, and the distance between the bars of the ladder 2 cm), which is based on the determination of one-repetition maximum (1RM). Obese rats received a dose of 0.5 mL/100 g of body weight orally by gavage for 4 weeks and 5 days a week. Results: There was no significant difference between the groups in terms of DCN expressions (P=0.702). However, the expression of SPARC (P=0.039) and myonectin in the obese control group was significantly increased compared to the healthy control (P=0.038). The expression of SPARC and myonectin in the aerobic training group (P=0.038, P=0.042) and the resistance training group (P=0.048, P=0.049) was significantly decreased in comparison to obesity control. Resistance training caused a greater decrease in myonectin compared to aerobic training (P=0.049). Conclusion: The findings revealed that aerobic and resistance exercises are effective in reducing SPARC and myonectin expression in the skeletal muscle of rats fed with a high-fat diet.

Effects of obesity, and of weight loss following bariatric surgery, on methylation of DNA from the rectal mucosa and in cell-free DNA from blood.

DNA methylation is an epigenetic mechanism through which environmental factors including nutrition and inflammation influence health. Obesity is a major modifiable risk factor for many common diseases including cardiovascular diseases and cancer. In particular, obesity-induced inflammation resulting from aberrantly-methylated inflammatory genes may drive risk of several non-communicable diseases including colorectal cancer (CRC). This study is the first to investigate the effects of weight loss induced by bariatric surgery (BS) on DNA methylation in the rectum and in cell-free DNA (cfDNA) from blood. DNA methylation was quantified in rectal mucosal biopsies and cfDNA from serum of 28 participants with obesity before and 6 months after BS, as well as in 12 participants without obesity (control group) matched for age and sex from the Biomarkers Of Colorectal cancer After Bariatric Surgery (BOCABS) Study. DNA methylation of LEP, IL6, POMC, LINE1, MAPK7 and COX2 was quantified by pyrosequencing. BMI decreased significantly from 41.8 kg/m2 pre-surgery to 32.3 kg/m2 at 6 months after BS. Compared with the control group, obesity was associated with lower LEP methylation in both the rectal mucosa and in cfDNA from serum. BS normalised LEP methylation in DNA from the rectal mucosa but not in cfDNA. BS decreased methylation of some CpG sites of LINE1 in the rectal mucosal DNA and in cfDNA to levels comparable with those in participants without obesity. Methylation of POMC in rectal mucosal DNA was normalised at 6 months after BS. BS reversed LINE1, POMC and LEP methylation in the rectal mucosa of patients with obesity to levels similar to those in individuals without obesity. These findings support current evidence of effects of BS-induced weight loss on reversibility of DNA methylation in other tissues. The DNA methylation changes in the rectal mucosa shows promise as a biomarker for objective assessment of effects of weight loss interventions on risk of cancer and other diseases.

Effects of Exercise Sequence and Circadian Rhythms on Molecular Mechanisms of Muscle Hypertrophy and Mitochondrial Biogenesis in Obese Rat

PURPOSE: This study aimed to investigate whether endurance and resistance training sequences and circadian rhythms affect muscle hypertrophy and mitochondrial biogenesis-related molecules in obese rats.METHODS: Rats were randomly divided into five groups: the obesity control group (OCG), aerobic-resistance exercise in the morning group (ARMG), resistance-aerobic exercise in the morning group (RAMG), aerobic resistance exercise in the evening group (AREG), and resistance-aerobic exercise in the evening group (RAEG). The exercise groups performed endurance and resistance exercises for 8 weeks according to their circadian rhythms and exercise sequences.RESULTS: We evaluated specific muscle hypertrophy and mitochondrial biogenesis markers in the flexor pollicis longus and soleus muscles using western blot and immunofluorescence techniques. The body weight was significantly decreased in the ARMG, RAMG, AREG, RAEG compared to the OCG after intervention. The soleus muscle fiber cross-sectional area and muscle hypertrophy markers p-Akt and p-mTOR were significantly increased in the AREG group compared with those in the OCG, ARMG, RAMG, and RAEG groups after exercise intervention. Most mitochondrial biogenesis-related markers were significantly increased in the RAMG group than in the other groups after exercise intervention.CONCLUSION: Our findings provide new evidence that muscle hypertrophy might be upregulated by resistance exercise after evening endurance exercise. In addition, morning resistance exercise followed by aerobic exercise, might promote mitochondrial biogenesis.

Delta neutrophil index in obese and non-obese PCOS patients.

We aimed to evaluate the usefulness of delta neutrophil index (DNI), a new inflammatory marker, in polycystic ovary syndrome (PCOS). This retrospective case-control study was conducted at a tertiary health center. The DNI and other blood parameters obtained from the complete blood count examination of 227 individuals, consisting of 72 PCOS patients and 155 controls, were compared between the two groups. A receiver operating characteristic analysis was performed to examine the relationship between DNI and PCOS. DNI, white blood cell (WBC) count, and neutrophil count were significantly higher in the PCOS group than in the control group (P=0.028, 0.011, and 0.037; respectively). DNI and WBC counts were significantly higher in nonobese-PCOS patients (P=0.018 and 0.041; respectively). When the obese-PCOS and obese-control groups were compared, only neutrophil count was significantly higher in obese-PCOS patients (P=0.016). Significance was observed at cut-off values of 0.015 (area under the curve [AUC]=0.588) (P=0.034; sensitivity, 78%; specificity, 35%; Youden's index=0.133) for DNI: 9.35 (AUC=0.594) (P=0.022) for WBC; and 5.38 (AUC=0.628) (P=0.002) for neutrophils. Higher DNI in PCOS patients and similar results in the non-obese-PCOS group were observed when obese and non-obese-PCOS patients were considered separately. However, the lack of difference in the obese-PCOS group strengthens the hypothesis that there is obesity-independent inflammation in PCOS.