scholarly journals Liver proteome alterations in psychologically distressed rats and a nootropic drug

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11483
Author(s):  
Raquel González-Fernández ◽  
Mariana Grigoruţă ◽  
Sarahi Chávez-Martínez ◽  
Eliel Ruiz-May ◽  
José Miguel Elizalde-Contreras ◽  
...  
Keyword(s):  
Liver Disease ◽  
Psychological Stress ◽  
Biochemical Parameters ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
The Body ◽  
Alcoholic Fatty Liver ◽  
Proteomic Approach ◽  
Wide Range ◽  
Liver Proteome

Background Chronic psychological distress is considered today a pandemic due to the modern lifestyle and has been associated with various neurodegenerative, autoimmune, or systemic inflammation-related diseases. Stress is closely related to liver disease exacerbation through the high activity of the endocrine and autonomic nervous systems, and the connection between the development of these pathologies and the physiological effects induced by oxidative stress is not yet completely understood. The use of nootropics, as the cognitive enhancer and antioxidant piracetam, is attractive to repair the oxidative damage. A proteomic approach provides the possibility to obtain an in-depth comprehension of the affected cellular processes and the possible consequences for the body. Therefore, we considered to describe the effect of distress and piracetam on the liver proteome. Methods We used a murine model of psychological stress by predatory odor as a distress paradigm. Female Sprague-Dawley rats were distributed into four experimental groups (n = 6 − 7/group) and were exposed or not to the stressor for five days and treated or not with piracetam (600 mg/kg) for six days. We evaluated the liver proteome by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (1D-SDS-PAGE) followed by liquid chromatography-tandem mass spectrometry (GeLC-MS/MS). Besides, we analyzed the activity of liver antioxidant enzymes, the biochemical parameters in plasma and rat behavior. Results Our results showed that distress altered a wide range of proteins involved in amino acids metabolism, glucose, and fatty acid mobilization and degradation on the way to produce energy, protein folding, trafficking and degradation, redox metabolism, and its implications in the development of the non-alcoholic fatty liver disease (NAFLD). Piracetam reverted the changes in metabolism caused by distress exposure, and, under physiological conditions, it increased catabolism rate directed towards energy production. These results confirm the possible relationship between chronic psychological stress and the progression of NAFLD, as well as we newly evidenced the controversial beneficial effects of piracetam. Finally, we propose new distress biomarkers in the liver as the protein DJ-1 (PARK7), glutathione peroxidase 1 (GPX), peroxiredoxin-5 (PRDX5), glutaredoxin 5 (GLRX5), and thioredoxin reductase 1 (TXNDR1), and in plasma as biochemical parameters related to kidney function such as urea and blood urea nitrogen (BUN) levels.

scholarly journals Frequency of non-alcoholic fatty liver disease in a series of forensic cases in Mexico

2021 ◽  
Vol 20 (2) ◽  
Author(s):  
Ana Laura Calderón-Garcidueñas
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
The Body ◽  
Mexican Population ◽  
Alcoholic Fatty Liver ◽  
Abdominal Perimeter ◽  
Asymptomatic Individuals ◽  
Del Rio ◽  
Alcoholic Fatty Liver Disease

The Mexican population is overweight (34%) and obese (21%). Obesity is a risk factor for non-alcoholic fatty liver disease (NAFLD). Most studies of the frequency and prevalence of NAFLD have been performed using ultrasonography. In Mexico, ultrasound-based studies have shown a prevalence of NAFLD of 15.7 to 17 %. Objective. The objective was to determine the frequency of NAFLD in apparently asymptomatic individuals who died instantly in a traffic accident and with not known background of liver disease. Material and Methods. Autopsies were performed at the Coroner’s Office in the Municipality of Boca del Río, Mexico, during the period from January to December 2016. The variables studied included age, sex, weight, height, abdominal perimeter, fat panicle-thickness, main cause of death, and liver biopsy (NASH CRN classification). Results. Of the 32 cases studied, 78.1 % were males. Average age was 48 years (range 20-80 years). The body mass index range (BMI) was 17-33. A 34% of cases had NAFLD. 27.3 % of the cases with NAFLD had a normal BMI. Conclusions. This postmortem study showed a higher frequency of asymptomatic hepatic steatosis than previously reported in the Mexican population. The establishment of timely national measures to detect and prevent complications of NFALD is necessary.

FEASIBILITY OF CYSTATIN C DETERMINATION FOR EARLY DIAGNOSIS OF KIDNEY DAMAGE IN PATIENTS WITH TYPE 2 DIABETES COMBINED WITH NONALCOHOLIC FATTY LIVER DISEASE AND OBESITY EXPOSED TO COVID-19 INFECTION IN THE PAST

2021 ◽  
Vol 74 (10) ◽  
pp. 2640-2645
Author(s):  
Kateryna V. Sabovchyk ◽  
Yelyzaveta S. Sirchak ◽  
Vasyl V. Stryzhak
Keyword(s):  
Type 2 Diabetes ◽  
Liver Disease ◽  
Fatty Liver ◽  
Cystatin C ◽  
Fatty Liver Disease ◽  
The Body ◽  
Alcoholic Fatty Liver ◽  
Type 2 Dm ◽  
Group 3

The aim: To examine the diagnostic possibilities of determining the level of cystatin C in the blood serum in order to ascertain the functional status of the kidneys in patients with type 2 diabetes (those who recovered from COVID-19 infection) depending on the presence or absence of non-alcoholic fatty liver disease (further – NAFLD) and malnutrition. Materials and methods: We investigated 18 patients with type 2 DM, who were included in the first group of the patients examined; group 2 consisted of 20 patients with type 2 DM and non-alcoholic fatty liver disease (NAFLD), namely with non-alcoholic steatohepatitis; and group 3 of the patients examined consisted of 30 patients with type 2 DM and obesity. Results: Renal damage in patients with metabolically associated diseases in the background of respiratory disease due to COVID-19 infection was also indicated by changes in urine test indicators, and namely – proteinuria and erythrocyturia, leukocyturia in urine sediment. The examination of cystatin C (Cys C) level indicates its statistically significant increase in patients of all examined groups, with the highest levels established in group 3 patients (with its increase up to 2.58 ± 0.11 mg/L, compared with the norm of 0.75 ± 0.04 mg/L in the control group – p < 0.01). The examination of GFR by calculation, where the Cys C index in serum was used, revealed a significant decrease in this parameter in all the examined groups of patients. At the same time, the maximum values were found in group 1 patients (65.7 ± 1.4 ml/min per 1.73 m2 of the body surface), and the minimum values – in group 3 patients (48.3 ± 2.7 ml/min per 1.73 m2 of the body surface). Conclusions: An increase in serum cystatin C levels was determined in type 2 diabetes patients, with the lowest level in group 1 patients (1.24 ± 0.07 mg/L – p < 0.05), and the highest level in patients suffering from type 2 diabetes combined with NAFLD and obesity (2.58 ± 0.11 mg/L – p < 0.01). A moderate to severe course of COVID-19 infection in patients with type 2 diabetes as well as with its combination with NAFLD and obesity contributes to the development of renal functional disorders in these patients. Moreover, an increase in serum Cys C levels is a more sensitive and earlier marker of renal damage development in comorbid pathology.

Non-alcoholic fatty liver disease – discussed under the light of Unani medicine

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohd Riyazuddin ◽  
Arisha Shahid
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Dietary Habits ◽  
Primary Source ◽  
Developed Countries ◽  
The Body ◽  
Excessive Alcohol Consumption ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Abstract Non-alcoholic Fatty Liver Disease (NAFLD) is one of the diseases that have evolved lately into a major challenge for gastroenterologists. Although, the term NAFLD has not been familiar to the medical world since long, other conditions resembling the presentation of NAFLD have been there since primitive times. It is a reversible condition of the liver, wherein large vacuoles of triglyceride fat accumulates in liver cells via the process of steatosis, despite any evidence of excessive alcohol consumption. In the developed countries NAFLD is reported to be the most common liver disorder, with a worldwide prevalence of 6–35%, in India its prevalence has been increasing gradually. Unani physicians have described liver as one of the principal organs of the body. It is the primary source of natural faculties, where the functions of digestion, concoction, absorption and excretion are performed, normally temperament of liver is hot and moist which can get converted to cold due to mutable dietary habits, consumption of fatty and cold food in abundance etc. In Unani System of Medicine, NAFLD has not been described as such, but it can be studied under Su’-i-Mizāj Kabid Bārid due to correlation of most of the symptoms. Its management mainly consists of elimination of morbid matter which is accumulated in the liver and correction of Su’-i-Mizāj Kabid Bārid by using drugs having opposite temperament (Ilaj bil zid).

Radioimmunoassay for the pyridinoline cross-linked carboxy-terminal telopeptide of type I collagen: a new serum marker of bone collagen degradation

1993 ◽  
Vol 39 (4) ◽  
pp. 635-640 ◽  
Author(s):  
J Risteli ◽  
I Elomaa ◽  
S Niemi ◽  
A Novamo ◽  
L Risteli
Keyword(s):  
Type I Collagen ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Bone Collagen ◽  
Collagen Molecule ◽  
Type I ◽  
Serum Samples ◽  
Amino Terminal ◽  
Wide Range ◽  
Carboxy Terminal

Abstract We developed a radioimmunoassay (RIA) for the carboxy-terminal telopeptides of type I collagen (ICTP), cross-linked with the helical domain of another type I collagen molecule, after isolation from human femoral bone. The cross-linked peptide was liberated by digesting insoluble, denatured bone collagen either with bacterial collagenase or with trypsin, and purified by two successive reversed-phase separations on HPLC, with monitoring of pyridinoline-specific fluorescence. The purity of the peptide was verified by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and its origin in the type I collagen fibers was determined by amino-terminal amino acid sequencing. Polyclonal antibodies and a separation reagent containing second antibody and polyethylene glycol are used in the RIA. An immunologically identical, somewhat larger antigen is present in human serum; its concentration increases in multiple myeloma and in rheumatoid arthritis. The ICTP antigen seems to be cleared from the circulation by the kidneys, because glomerular filtration rates that are two-thirds of normal or less are associated with increased circulating ICTP concentrations. The CVs of the method are between 3% and 8% for a wide range of concentrations. The analysis of 40 serum samples can be completed in 4 h.

scholarly journals Influence of Gemini Surfactants on Biochemical Profile and Ultrastructure of Aspergillus brasiliensis

2019 ◽  
Vol 9 (2) ◽  
pp. 245 ◽  
Author(s):  
Anna Koziróg ◽  
Anna Otlewska ◽  
Magdalena Gapińska ◽  
Sylwia Michlewska
Keyword(s):  
Gemini Surfactants ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Control Sample ◽  
Extracellular Proteins ◽  
Practical Applications ◽  
Aspergillus Brasiliensis ◽  
Cationic Gemini Surfactants ◽  
Wide Range ◽  
Cationic Compounds

In this study, we investigated the activities of hexamethylene-1,6-bis-(N,N-dimethyl-N-dodecylammonium bromide) (C6), pentamethylene-1,5-bis-(N,N-dimethyl-N-dodecylammonium bromide) (C5), and their two neutral analogues: hexamethylene-1,6-bis-(N-methyl-N-dodecylamine) (A6) and pentamethylene-1,5-bis-(N-methyl-N-dodecylamine) (A5) at concentrations of ½ MIC, MIC, and 2 MIC (minimal inhibitory concentration) against hyphal forms of Aspergillus brasiliensis ATCC 16404. Enzymatic profiles were determined using the API-ZYM system. Extracellular proteins were extracted from the mycelia and analyzed using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The ultrastructure was evaluated using a transmission electron microscope (TEM). Both groups of surfactants caused changes in the enzyme profiles. Larger changes in the number and concentration of enzymes were noted after the action of non-ionic gemini surfactants, which may have been due to the 100× higher concentration of neutral compounds. Larger differences between the protein profiles of the control sample and the biocide samples were observed following the use of cationic compounds. On the basis of TEM analyses, we found that, with increasing concentrations of compound C6, the mycelium cells gradually degraded. After treatment at 2 MIC, only membranous structures, multiform bodies, and dense electron pellets remained. Based on these results, we concluded that cationic gemini surfactants, in comparison with their non-ionic analogues, could have a wide range of practical applications as active compounds.

scholarly journals Biochemical changes in Non-alcoholic fatty liver disease (NAFLD): A study in Nepalese Population

2017 ◽  
Vol 2 (2) ◽  
pp. 15-20
Author(s):  
Pooja Maharjan ◽  
Puspa Raj Khanal ◽  
Narayan Prasad Parajuli ◽  
Govardhan Joshi ◽  
Hridaya Parajuli ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Biochemical Parameters ◽  
Developed Countries ◽  
Western World ◽  
Control Group ◽  
P Value ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Background: Non-alcoholic fatty liver disease (NAFLD) has emerged as the most common liver problem in the western world and is a clinicopathologic entity increasingly recognized as a major health burden in developed countries. Different laboratory tests are extremely useful in achieving a better understanding of diseases, and thereby, allow making decision for better management. The examination of different biochemical parameters usually provides excellent clues to the cause of the disease. The present study was conducted with the aim to assess the biochemical markers in Non alcoholic fatty liver disease (NAFLD) patients in Nepalese population.Methods: The biochemical parameters were investigated in 75 NAFLD patients, and 70 normal participants. The diagnosis of hepatic steatosis was established by abdominal ultrasound examination. All patients diagnosed as NAFLD were investigated for biochemical parameters and see the relationship between NAFLD and control was studied.Results: The findings of all biochemical parameters were raised in NAFLD patients in comparison with non-fatty liver control group and the differences were found to be statistically (P value less than 0.005) significant.Conclusions: NAFLD is associated with changes in biochemical parameters in cases of NAFLD. Its early detection will help in modifying the disease course, delaying complications and will also play a major role in preventive cardiology.Ann. Clin. Chem. Lab. Med. 2016:2(2);15-20

Unified interpretation of liver stiffness measurement by M and XL probes in non-alcoholic fatty liver disease

Gut ◽  
2019 ◽  
Vol 68 (11) ◽  
pp. 2057-2064 ◽  
Author(s):  
Vincent Wai-Sun Wong ◽  
Marie Irles ◽  
Grace Lai-Hung Wong ◽  
Sarah Shili ◽  
Anthony Wing-Hung Chan ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Transient Elastography ◽  
Liver Stiffness ◽  
The Body ◽  
Liver Stiffness Measurement ◽  
Alcoholic Fatty Liver ◽  
Stiffness Measurement ◽  
Alcoholic Fatty Liver Disease

ObjectiveThe latest model of vibration-controlled transient elastography (VCTE) automatically selects M or XL probe according to patients’ body built. We aim to test the application of a unified interpretation of VCTE results with probes appropriate for the body mass index (BMI) and hypothesise that this approach is not affected by hepatic steatosis.DesignWe prospectively recruited 496 patients with non-alcoholic fatty liver disease who underwent VCTE by both M and XL probes within 1 week before liver biopsy.Results391 (78.8%) and 433 (87.3%) patients had reliable liver stiffness measurement (LSM) (10 successful acquisitions and IQR:median ratio ≤0.30) by M and XL probes, respectively (p<0.001). The area under the receiver operating characteristic curves was similar between the two probes (0.75–0.88 for F2–4, 0.83–0.91 for F4). When used in the same patient, LSM by XL probe was lower than that by M probe (mean difference 2.3 kPa). In contrast, patients with BMI ≥30 kg/m2 had higher LSM regardless of the probe used. When M and XL probes were used in patients with BMI <30 and ≥30 kg/m2, respectively, they yielded nearly identical median LSM at each fibrosis stage and similar diagnostic performance. Severe steatosis did not increase LSM or the rate of false-positive diagnosis by XL probe.ConclusionHigh BMI but not severe steatosis increases LSM. The same LSM cut-offs can be used without further adjustment for steatosis when M and XL probes are used according to the appropriate BMI.

scholarly journals Raw Bowl Tea (Tuocha) Polyphenol Prevention of Nonalcoholic Fatty Liver Disease by Regulating Intestinal Function in Mice

Biomolecules ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 435 ◽  
Author(s):  
Bihui Liu ◽  
Jing Zhang ◽  
Peng Sun ◽  
Ruokun Yi ◽  
Xiaoyan Han ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Density Lipoprotein ◽  
The Body ◽  
Lipoprotein Cholesterol ◽  
Intestinal Function ◽  
Alcoholic Fatty Liver ◽  
Body Tissues ◽  
Tnf Α

A high-fat diet-induced C57BL/6N mouse model of non-alcoholic fatty liver disease (NAFLD) was established. The effect and mechanism of Raw Bowl Tea polyphenols (RBTP) on preventing NAFLD via regulating intestinal function were observed. The serum, liver, epididymis, small intestine tissues, and feces of mice were examined by biochemical and molecular biological methods, and the composition of RBTP was analyzed by HPLC assay. The results showed that RBTP could effectively reduce the body weight, liver weight, and liver index of NAFLD mice. The serum effects of RBTP were: (1) decreases in alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (AKP), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C), D-lactate (D-LA), diamine oxidase (DAO), lipopolysaccharide (LPS), and an increase of high density lipoprotein cholesterol (HDL-C) levels; (2) a decrease of inflammatory cytokines such as interleukin 1 beta (IL-1β), interleukin 4 (IL-4), interleukin 6 (IL-6), interleukin 10 (IL-10), tumor necrosis factor alpha (TNF-α), and interferon gamma (INF-γ); (3) a decrease the reactive oxygen species (ROS) level in liver tissue; and (4) alleviation of pathological injuries of liver, epididymis, and small intestinal tissues caused by NAFLD and protection of body tissues. qPCR and Western blot results showed that RBTP could up-regulate the mRNA and protein expressions of LPL, PPAR-α, CYP7A1, and CPT1, and down-regulate PPAR-γ and C/EBP-α in the liver of NAFLD mice. In addition, RBTP up-regulated the expression of occludin and ZO-1, and down-regulated the expression of CD36 and TNF-α in the small intestines of NAFLD mice. Studies on mice feces showed that RBTP reduced the level of Firmicutes and increased the minimum levels of Bacteroides and Akkermansia, as well as reduced the proportion of Firmicutes/Bacteroides in the feces of NAFLD mice, which play a role in regulating intestinal microecology. Component analysis showed that RBTP contained seven polyphenolic compounds: Gallic acid, (-)-epigallocatechin, catechin, L-epicatechin, (-)-epigallocatechin gallate, (-)-gallocatechin gallate, and (-)-epicatechin gallate (ECG), and high levels of caffeine, (-)-epigallocatechin (EGC), and ECG. RBTP improved the intestinal environment of NAFLD mice with the contained active ingredients, thus playing a role in preventing NAFLD. The effect was positively correlated with the dose of 100 mg/kg, which was even better than that of the clinical drug bezafibrate.

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