scholarly journals Liver Injury Indicating Fatty Liver but Not Serologic NASH Marker Improves under Metformin Treatment in Polycystic Ovary Syndrome

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Susanne Tan ◽  
Nils Vollmar ◽  
Sven Benson ◽  
Jan-Peter Sowa ◽  
Lars P. Bechmann ◽  
...  

Objective. Polycystic ovary syndrome (PCOS) is associated with obesity and insulin resistance (IR), key features of nonalcoholic steatohepatitis (NASH). Cytokeratin 18 fragments (M30) have been established as a serum marker for NASH. The insulin sensitizer metformin improves hepatic IR. This study evaluates the influence of MF on serologic NASH (sNASH) in patients with PCOS.Patients and Methods. In 89 patients, metabolic parameters, liver injury indicating fatty liver (LIFL), and M30 were assessed at baseline and after metformin treatment. Patients with initial IR were subdivided into dissolved (PCOS-exIR) and persistent IR (PCOS-PIR) after treatment and compared to an initially insulin sensitive PCOS group (PCOS-C).Results. Improvement of LIFL prevalence could be seen in PCOS-C and PCOS-exIR compared to PCOS-PIR (−19.4, resp., −12.0% versus 7.2%, Chi2= 29.5,P<0.001) without change in sNASH prevalence. In PCOS-PIR, ALT levels increased significantly accompanied by a nominal, nonsignificant M30 increase.Conclusions. Metformin improves LIFL in subgroups of patients with PCOS without influencing sNASH. This could either indicate a missing effect of metformin on NAFLD or slowed disease progression. Further studies are needed to elucidate NAFLD in the context of PCOS and potential therapeutic options.

2015 ◽  
Vol 53 (01) ◽  
Author(s):  
S Tan ◽  
N Vollmar ◽  
S Benson ◽  
LP Bechmann ◽  
G Gerken ◽  
...  

2015 ◽  
Vol 62 ◽  
pp. S749
Author(s):  
S. Tan ◽  
N. Vollmar ◽  
J.-P. Sowa ◽  
S. Benson ◽  
L.P. Bechmann ◽  
...  

Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2451
Author(s):  
Emily L. Zumbro ◽  
Manisha Rao ◽  
Shenavia Balcom-Luker ◽  
K. Shane Broughton ◽  
Monique J. LeMieux

Polycystic ovary syndrome (PCOS) increases type 2 diabetes and non-alcoholic fatty liver disease (NAFLD) with insulin resistance. We hypothesized that a 35 g whey preload would improve insulin sensitivity and glucose handling while reducing biomarkers associated with NAFLD. Twenty-nine age-matched women (CON = 15, PCOS = 14) completed oral glycemic tolerance tests following baseline (Day 0) as well as an acute (Day 1) and short-term whey supplementation (Day 7). Whey had an interaction effect on glucose (p = 0.02) and insulin (p = 0.03), with glucose remaining stable and insulin increasing with whey supplementation. Insulin sensitivity (p < 0.01) improved with whey associated with increased glucagon secretion (p < 0.01). Alanine aminotransferase (ALT), and aspartate aminotransferase (AST) remained unchanged, but “day” had an effect on the AST:ALT ratio (p = 0.04), whereas triglycerides and sex hormone binding globulin overall were greater in the PCOS group (p < 0.05). Total cholesterol decreased in PCOS (by 13%) and CON (by 8%) (NS). HepG2 cells treated with plasma from participants before and after whey decreased lipid accumulation in the PCOS group after whey (p < 0.05). Whey provided an insulinogenic and glycemic homeostatic effect in women with PCOS with the potential to combat NAFLD-consequences.


Author(s):  
Amir Nejati ◽  
Maryam Parvini Kohneh Shahri ◽  
Tarlan Farahvash

Background: Polycystic ovary syndrome (PCOS) is the most common endocrine abnormality among women of reproductive age. Insulin resistance is known as the hallmark of PCOS that leads to hyperinsulinemia and type 2 diabetes in PCOS patients. Objective: This study aimed to evaluate the expression pattern of IRS1 as a candidate gene in insulin resistance development in the PCOS Rat models. Methods: In this study, estradiol valerate was used for PCOS induction. Then, all of the rats were divided into five experimental groups and treated with Astragalus hamosus extract. Ethanol was used for extraction by Soxhlet, and extracts were analyzed by GC-MS. Ovarian morphology was analyzed using histological experiments. Finally, the expression of IRS1 and hormonal titration of testosterone and insulin were evaluated using qRT-PCR and ELISA assays, respectively. Results: Induction of PCOS led to an increase in body weight, which decreased after treatment with the extract. Histological assessment declared an increased number of corpus luteums in treated groups and reduced cystic follicles compared with the PCOS group. Astragalus hamosus extract-treated groups exhibited decreased levels of insulin and testosterone compared to the PCOS group. qRT-PCR results showed an increase in the expression levels of IRS1 in the treated groups compared to the PCOS group. Conclusions: This study indicated the impact of Astragalus hamosus extract on PCOS by clarifying the increased levels of IRS1 expression in the treated groups compared to the PCOS group.


2005 ◽  
Vol 152 (5) ◽  
pp. 749-756 ◽  
Author(s):  
E Diamanti-Kandarakis ◽  
K Alexandraki ◽  
A Protogerou ◽  
C Piperi ◽  
C Papamichael ◽  
...  

Objective: The aim of this study was to investigate the endothelial status in young women with polycystic ovary syndrome (PCOS), using a simple and easily reproducible hemodynamic method combined with a biological marker and to evaluate the effect of metformin treatment on these parameters. Design: Descriptive clinical trial. Methods: Forty young women, 20 with PCOS and 20 normal women of similar age and body mass index were studied. Metformin (1700 mg daily) was administered for 6 months to the PCOS group. The endothelium status and the metabolic and hormonal profile were studied in both groups, as well as after metformin, by flow-mediated dilatation (FMD) on the brachial artery and by measurements of plasma endothelin-1 (ET-1) levels. Results: FMD was impaired in the PCOS group when compared with controls (3.24±0.71% vs 8.81±1.07% respectively, P < 0.0001), but this difference normalized after metformin treatment (PCOSpost-metformin vs controls: 8.17±1.26 vs 8.81±1.07%, P = 0.70) since the values significantly improved after metformin treatment (PCOSpre-metformin vs PCOSpost-metformin: 3.24±0.71 vs 8.17±1.26%, P = 0.003). ET-1 levels were significantly higher in the PCOS women compared with the control group (7.23±0.50 vs 4.99±0.69 fmol/l, P = 0.01), they improved significantly after metformin treatment (PCOSpre-metformin vs PCOSpost-metformin: 7.23±0.50 vs 3.57±0.60 fmol/l, P < 0.0001) and their difference compared with the control group was reversed (PCOSpost-metformin vs controls: 3.57±0.60 vs 4.99±0.69 fmol/l, P = 0.13). Metformin administration improved hyperandrogenemia. However, in this study, mathematical methods used to assess insulin resistance failed to show any detected alteration after treatment with metformin. Conclusions: PCOS women were found to exhibit endothelial dysfunction compared with controls, which was reversed 6 months after metformin administration.


2019 ◽  
Vol 20 (7) ◽  
pp. 1720 ◽  
Author(s):  
Hui Chang ◽  
Yuan-Shuo Hsueh ◽  
Yung Cheng ◽  
Huang-Tz Ou ◽  
Meng-Hsing Wu

Insulin-sensitizer treatment with metformin is widely used in polycystic ovary syndrome (PCOS). However, the treatment effectiveness shows individual differences in PCOS patients. Organic cation transporter (OCT) 1 and 2 have been reported to mediate metformin transport in the liver and kidney, respectively. In this study, we investigated the association between the polymorphisms of OCT1 and OCT2 and the treatment effectiveness of metformin in PCOS patients. The single nucleotide polymorphisms (SNPs) of OCT1 (rs683369 and rs628031) and OCT2 (rs316019) were analyzed in 87 PCOS and 113 control women. Oral glucose tolerance tests (OGTTs), which represented metformin treatment response, were conducted at the start of treatment and after six-month treatment. The results demonstrated that the SNP frequencies of OCT1 and OCT2 were not associated with PCOS pathophysiology, and that the polymorphisms of OCT1 and OCT2 were not associated with the OGTT parameters at baseline. However, PCOS patients with the G allele of OCT1 rs683369 and/or with the A allele of OCT1 rs628031 had increased insulin sensitivity compared to those with wild-type genotype after receiving metformin treatment. Moreover, the interactions of metformin*SNP were significant in both OCT1 rs683369 (p < 0.001) and rs628031 (p = 0.001) during the treatment period. Taken together, genetic polymorphisms of OCT1 contributed to different metformin treatment responses, and further study is needed to establish personalized treatment programs using a pharmacogenomic algorithm approach in PCOS patients.


Author(s):  
Gislaine Satyko Kogure ◽  
Victor Barbosa Ribeiro ◽  
Flávia Ganoa de Oliveira Gennaro ◽  
Rui Alberto Ferriani ◽  
Cristiana Libardi Miranda-Furtado ◽  
...  

Abstract Objective The present study aimed to investigate the physical performance of handgrip strength (HGS) in women with polycystic ovary syndrome (PCOS). Methods A case-control study that included 70 women with PCOS and 93 age-matched healthy women aged between 18 and 47 years with body mass index (BMI) between 18 Kg/m2–39.9 Kg/m2. The serum levels of total testosterone, androstenedione, insulin, estradiol, thyroid-stimulating hormone (TSH), prolactin, sex hormone-binding globulin (SHBG), and 17-hydroxyprogesterone (17-OHP) were measured. The free androgen index (FAI) and the homeostatic model assessment of insulin resistance (HOMA-IR) were calculated. The body composition regions of interest (ROIs) were assessed by dual-energy X-ray absorptiometry (DXA), and the handgrip strength (HGS) was evaluated for both the dominant and the non-dominant hands with a manual Sammons Preston (Bolingbrook, IL, US) bulb dynamometer. Results Women with PCOS had high serum levels of total testosterone (p < 0.01), androstenedione (p = 0.03), and insulin (p < 0.01), as well as high FAI (p < 0.01) and HOMA-IR (p = 0.01) scores. Compared with the non-PCOS group, the PCOS group had greater total lean mass in the dominant hand (p < 0.03) and greater HGS in both the dominant and the non-dominant hands (p < 0.01). The HGS was correlated with lean mass (p < 0.01). Conclusion Women with PCOS have greater HGS. This may be associated with age and BMI, and it may be related to lean mass. In addition, the dominance effect on muscle mass may influence the physical performance regarding HGS in women with PCOS.


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