scholarly journals Effect of Sake Lees on the Inhibition of Lipid Accumulation in Adipocytes

Fermentation ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 145
Author(s):  
Yuki Motono ◽  
Takeshi Imai ◽  
Takashi Emi ◽  
Takafumi Iguchi ◽  
Motoko Takaoka

Recent lifestyle changes, such as the Westernization of diets and the rise in the prevalence of obesity, with an associated increase in the number of patients with lifestyle-related diseases, have become a social issue. Fermented food has attracted attention as a solution to problems caused by obesity. Sake lees, a byproduct of sake brewing, represent one such food that is expected to have health benefits. In this study, we investigated the effects of sake lees components on preadipocytes (3T3-L1). We cultured preadipocytes in a medium with indigestible sake lees components (ISLCs) to investigate lipid accumulation, analyzed the glycerol 3-phosphate dehydrogenase (GPDH) and LPL activities of those cells, and performed a real-time PCR analysis of the IL6 expression in the cells. The results show that lipid accumulation and GPDH activity were significantly decreased in adipocytes treated with 1.0 mg/mL ISLCs compared to untreated cells. Furthermore, the expression of IL6 in adipocytes treated with 1.0 mg/mL ISLCs was significantly decreased and the lipase activity was significantly increased in adipocytes treated with ISLCs after differentiation. IL6 is known to have multiple functions in adipose tissue. In conclusion, ISLCs were associated with reduced lipid accumulation in adipocytes, with effects on IL6 expression and LPL activity observed throughout the differentiation period.

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Cheng Cheng Ruan ◽  
Zhe Chen ◽  
Fu Chu Hu ◽  
Wei Fan ◽  
Xiang He Wang ◽  
...  

Abstract Background The B3 superfamily (B3s) represents a class of large plant-specific transcription factors, which play diverse roles in plant growth and development process including flowering induction. However, identification and functional surveys of B3 superfamily have not been reported in ethylene-induced pineapple flowering (Ananas comosus). Results 57 B3 genes containing B3 domain were identified and phylogenetically classified into five subfamilies. Chromosomal localization analysis revealed that 54 of 57 AcB3s were located on 21 Linkage Groups (LG). Collinearity analysis demonstrated that the segmental duplication was the main event in the evolution of B3 gene superfamily, and most of them were under purifying selection. The analysis of cis-element composition suggested that most of these genes may have function in response to abscisic acid, ethylene, MeJA, light, and abiotic stress. qRT-PCR analysis of 40 AcB3s containing ethylene responsive elements exhibited that the expression levels of 35 genes were up-regulated within 1 d after ethephon treatment and some were highly expressed in flower bud differentiation period in stem apex, such as Aco012003, Aco019552 and Aco014401. Conclusion This study provides a basic information of AcB3s and clues for involvement of some AcB3s in ethylene-induced flowering in pineapple.


Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Kelly Anderson

Background and Purpose: Patients who are hospitalized for a stroke or TIA go home with a great deal of information about risk factors, medications, diet and exercise, signs and symptoms of stroke and follow-up care. This information may be difficult for the patient or caregiver to understand and can be overwhelming in the face of a new life-changing event. In addition, The Centers for Medicare and Medicaid Services will start publicly reporting 30-day readmission rates beginning in 2016. The purpose of this study is to determine if follow-up phone calls with a nurse help to reduce 30 day readmission rates for patients with stroke and TIA. Methods: This study utilized a convenience sample of adult patients who were admitted for ischemic stroke, ICH, SAH or TIA from March 2013 to February 2014. Patients in the intervention group participated in a phone call seven days after discharge to assess their compliance with medications, physician appointments and lifestyle changes. The proportion of readmissions between the groups was compared with Fisher’s exact test. Results: The total number of patients enrolled in the study was 586 and there were no significant differences in demographics between the control and intervention groups. Of the 533 patients in the control group, 54 (10%) of them were readmitted, including 11 patients readmitted for elective surgical procedures. Of the 52 patients in the intervention group, 3 (5.7%) of them were readmitted before the 7-day phone call. Of the 49 patients who participated in the 7-day phone call, none of them were readmitted ( p =0.0098). Conclusions: Patients who participate in a 7-day phone call appear to benefit and are less likely to be readmitted to the hospital. Other strategies may need to be considered for patients who are at higher risk, and thus more likely to be readmitted within seven days of discharge. In addition, some providers may wish to reconsider how they schedule elective procedures for secondary stroke prevention.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Sae-Rom Yoo ◽  
Chang-Seob Seo ◽  
Hyeun-Kyoo Shin ◽  
Soo-Jin Jeong

Background. Oyaksungi-san (OYSGS) is a herbal formula that has been used for treating cardiovascular diseases in traditional Asian medicine. Here, we investigated the antiadipogenic effect of OYSGS extract in 3T3-L1 adipose cells.Methods. 3T3-L1 preadipocytes were differentiated into adipocytes with or without OYSGS. After differentiation, we measured Oil Red O staining, glycerol-3-phosphate dehydrogenase (GPDH) activity, leptin production, mRNA, and protein levels of adipogenesis-related factors.Results. OYSGS extract dramatically inhibited intracellular lipid accumulation in the differentiated adipocytes. It also significantly suppressed the (GPDH) activity, triglyceride (TG) content, and leptin production by reducing the expression of adipogenesis-related genes including lipoprotein lipase, fatty acid binding protein 4, CCAAT/enhancer-binding protein-alpha (C/EBP-α), and peroxisome proliferator-activated receptor gamma (PPAR-γ). Furthermore, OYSGS clearly enhanced phosphorylation of AMP-activated protein kinase (AMPK) as well as its substrate acetyl CoA (ACC) carboxylase.Conclusions. Our results demonstrate that OYSGS negatively controls TG accumulation in 3T3-L1 adipocytes. We suggest antiadipogenic activity of OYSGS and its potential benefit in preventing obesity.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Sha Wang ◽  
Guoying Gao ◽  
Yiwei He ◽  
Qiong Li ◽  
Zhan Li ◽  
...  

With the adjustment of human diet and lifestyle changes, the prevalence of obesity is increasing year by year. Obesity is closely related to the excessive accumulation of white adipose tissue (WAT), which can synthesize and secrete a variety of adipokines. Apelin is a biologically active peptide in the adipokines family. Past studies have shown that apelin plays an important regulatory role in the pathogenesis and pathophysiology of diseases such as the cardiovascular system, respiratory system, digestive system, nervous system, and endocrine system. Apelin is also closely related to diabetes and obesity. Therefore, we anticipate that apelin-13 has an effect on lipometabolism and intend to explore the effect of apelin-13 on lipometabolism at the cellular and animal levels. In in vitro experiments, amidation-modified apelin-13 can significantly reduce the lipid content; TG content; and the expression of PPARγ, perilipin mRNA, and protein in adipocytes. Animal experiments also show that amidation modification apelin-13 can improve the abnormal biochemical indicators of diet-induced obesity (DOI) rats and can reduce the average diameter of adipocytes in adipose tissue, the concentration of glycerol, and the expression of PPARγ and perilipin mRNA and protein. Our results show that apelin-13 can affect the metabolism of adipose tissue, inhibit adipogenic differentiation of adipocytes, promote lipolysis, and thereby improve obesity. The mechanism may be regulating the expression of PPARγ to inhibit adipogenic differentiation and regulating the expression of perilipin to promote lipolysis. This study helps us understand the role of apelin-13 in adipose tissue and provide a basis for the elucidation of the regulation mechanism of lipometabolism and the development of antiobesity drugs.


Author(s):  
Daniel M. Doleys ◽  
Nicholas D. Doleys

This case may represent one of the common problems faced by clinicians involved in treatment patients with chronic pain. There appears to be a growing number of patients with a sense of entitlement, which manifests itself in requests to medications to address a plethora of problems. They often resist, if not resent, suggestions for lifestyle changes, (eg, exercise, diet, smoking reduction, use of nutritional supplements, stress management, etc.). They perceive and prefer pharmacological therapy (ie, chemical coping). This helps to dissolver them of any responsibility for the problems and encourages iatrogenic dependence on the medical system. Sometimes writing a prescription is the most efficient way to end on office-based consultation. This approach, however, may be detrimental to the patient in the long run.


2020 ◽  
Vol 318 (4) ◽  
pp. F911-F921 ◽  
Author(s):  
Kasi C. McPherson ◽  
Corbin A. Shields ◽  
Bibek Poudel ◽  
Ashley C. Johnson ◽  
Lateia Taylor ◽  
...  

The present study examined whether development of renal injury in the nondiabetic obese Dahl salt-sensitive leptin receptor mutant (SSLepRmutant) strain is associated with elevations in glomerular filtration rate and renal lipid accumulation. Baseline mean arterial pressure at 6 wk of age was similar between Dahl salt-sensitive wild-type (SSWT) and SSLepRmutant rats. However, by 18 wk of age, the SSLepRmutant strain developed hypertension, while the elevation in mean arterial pressure was not as severe in SSWT rats (192 ± 4 and 149 ± 6 mmHg, respectively). At baseline, proteinuria was fourfold higher in SSLepRmutant than SSWT rats and remained elevated throughout the study. The early development of progressive proteinuria was associated with renal hyperfiltration followed by a decline in renal function over the course of study in the SSLepRmutant compared with SSWT rats. Kidneys from the SSLepRmutant strain displayed more glomerulosclerosis and glomerular lipid accumulation than SSWT rats. Glomeruli were isolated from the renal cortex of both strains at 6 and 18 wk of age, and RNA sequencing was performed to identify genes and pathways driving glomerular injury. We observed significant increases in expression of the influx lipid transporters, chemokine (C-X-C motif) ligand 16 (Cxcl16) and scavenger receptor and fatty acid translocase (Cd36), respectively, and a significant decrease in expression of the efflux lipid transporter, ATP-binding cassette subfamily A member 2 ( Abca2; cholesterol efflux regulatory protein 2), in SSLepRmutant compared with SSWT rats at 6 and 18 wk of age, which were validated by RT-PCR analysis. These data suggest an association between glomerular hyperfiltration and glomerular lipid accumulation during the early development of proteinuria associated with obesity.


2009 ◽  
Vol 55 (9) ◽  
pp. 1062-1069 ◽  
Author(s):  
Wei Tang ◽  
Sufang Zhang ◽  
Qian Wang ◽  
Haidong Tan ◽  
Zongbao Kent Zhao

The oleaginous yeast Lipomyces starkeyi can accumulate intracellular lipids to over 60% of its cell dry mass under a nitrogen-limited condition. We showed that extracellular and intracellular citrate concentrations of L. starkeyi AS 2.1560 increased and the nicotinamide adenine dinucleotide – isocitrate dehydrogenase (NAD+–IDH) activity decreased at the beginning of the lipid accumulation, suggesting that the attenuation of the NAD+–IDH activity might initiate lipid storage. We next cloned the IDH gene by the methods of degenerate PCR and rapid amplification of cDNA ends. Phylogenetic analyses of the evolutionary relationships among LsIDH1, LsIDH2, and other yeast NAD+–IDHs revealed that the L. starkeyi IDH had a closer relationship with the IDHs of Yarrowia lipolytica . Further real-time PCR analysis showed that the expression levels of both LsIDH1 and LsIDH2 decreased concurrently with the evolution of cellular lipids. Our data should be valuable for understanding the biology of oleaginous yeasts and for further strain engineering of L. starkeyi.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 1467-1467
Author(s):  
Kaushiki Mukherjee ◽  
Xiaojin Sha ◽  
Ravi Bhatia ◽  
Tomasz Skorski ◽  
Barbara Hoffman ◽  
...  

Abstract The BCR-ABL fusion oncogene which encodes a fused deregulated tyrosine kinase causes chronic myelogenous leukemia (CML) in humans. Imatinib, a small molecule ABL kinase inhibitor has been highly effective in treating chronic phase (CP) CML patients. However, a substantial number of patients undergo relapse due to development of resistance to imatinib therapy that leads to blast crisis (BC-CML), which is invariably fatal within weeks to months. Additional genetic aberrations assist in progression and identification of key players that are responsible for transformation is of utmost importance from a therapeutic point of view. Growth arrest DNA damage 45a (Gadd45a) gene, a member in the gadd45 family of genes including Gadd45b & Gadd45g, was identified as a myeloid differentiation primary response gene. There is evidence consistent with it’s involvement in G2/M cell cycle arrest and apoptosis in response to multiple stressors, including genotoxic and oncogenic stress. To investigate the effect of Gadd45a in the development of CML, adaptive bone marrow transplantation experiments with either wild type or Gadd45a null myeloid progenitors expressing 210-kD BCR-ABL fusion oncoprotein revealed that loss of Gadd45a accelerated BCR-ABL driven CML resulting in the development of a more aggressive AML/BC like disease. Recent newly obtained data indicate that number of Gadd45a deficient Leukemic stem cells (LSC) harboring BCR-ABL increased as disease progressed confirming Gadd45a as a crucial tumor suppressor in CML. Recent data also indicate, that transformed Gadd45a deficient progenitors exhibit increased proliferation and decreased apoptosis, associated with enhanced PI3K-AKT-mTOR-4E-BP1 signaling and upregulated oncogenic p30C/EBPα. More importantly, newly obtained data indicate that Gadd45a transcript levels in peripheral blood of human blast crisis (BC-CML) samples was found to be reduced compared to accelerated phase (AP-CML), chronic phase (CP-CML) and normal controls, assessed by Quantitative real time PCR analysis. Collectivly these data strongly suggest that Gadd45a expression is a novel prognostic indicator of CML progression, implicating Gadd45a as a downregulated target of BCR-ABL associated with progression to more aggressive stages. To conclude, our findings provide novel evidence that Gadd45a functions as a suppressor of BCR/ABL driven myeloid leukemogenesis, & that suppresion of Gadd45a is associated with CML progression. These data provide the impetus to further elucidate the role Gadd45a plays in suppressing the development of CML, and explore how its loss contributes to the progression of CML to more aggressive leukemic phenotypes. Disclosures: No relevant conflicts of interest to declare.


2008 ◽  
Vol 74 (24) ◽  
pp. 7779-7789 ◽  
Author(s):  
Athanasios Beopoulos ◽  
Zuzana Mrozova ◽  
France Thevenieau ◽  
Marie-Thérèse Le Dall ◽  
Ivan Hapala ◽  
...  

ABSTRACT A genomic comparison of Yarrowia lipolytica and Saccharomyces cerevisiae indicates that the metabolism of Y. lipolytica is oriented toward the glycerol pathway. To redirect carbon flux toward lipid synthesis, the GUT2 gene, which codes for the glycerol-3-phosphate dehydrogenase isomer, was deleted in Y. lipolytica in this study. This Δgut2 mutant strain demonstrated a threefold increase in lipid accumulation compared to the wild-type strain. However, mobilization of lipid reserves occurred after the exit from the exponential phase due to β-oxidation. Y. lipolytica contains six acyl-coenzyme A oxidases (Aox), encoded by the POX1 to POX6 genes, that catalyze the limiting step of peroxisomal β-oxidation. Additional deletion of the POX1 to POX6 genes in the Δgut2 strain led to a fourfold increase in lipid content. The lipid composition of all of the strains tested demonstrated high proportions of FFA. The size and number of the lipid bodies in these strains were shown to be dependent on the lipid composition and accumulation ratio.


2017 ◽  
Vol 2 (3) ◽  
pp. 222-228 ◽  
Author(s):  
Vincent Thijs ◽  
Robin Lemmens ◽  
Omar Farouque ◽  
Geoffrey Donnan ◽  
Hein Heidbuchel

Purpose A substantial number of patients without a history of atrial fibrillation who undergo surgery develop one or more episodes of atrial fibrillation in the first few days after the operation. We studied whether postoperative transient atrial fibrillation is a risk factor for future atrial fibrillation, stroke and death. Method We performed a narrative review of the literature on epidemiology, mechanisms, risk of atrial fibrillation, stroke and death after postoperative atrial fibrillation. We reviewed antithrombotic guidelines on this topic and identified gaps in current management. Findings Patients with postoperative atrial fibrillation are at high risk of developing atrial fibrillation in the long term. Mortality is also increased. Most, but not all observational studies report a higher risk of stroke. The optimal antithrombotic regimen for patients with postoperative atrial fibrillation has not been defined. The role of lifestyle changes and of surgical occlusion of the left atrial appendage in preventing adverse outcomes after postoperative atrial fibrillation is not established. Conclusion Further studies are warranted to establish the optimal strategy to prevent adverse long-term outcomes after transient, postoperative atrial fibrillation.


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