Pharmacology of bioactive compounds from plant extracts for improving non-alcoholic fatty liver disease through endoplasmic reticulum stress modulation: A comprehensive review

Association Between Gestational Diabetes Mellitus and Risk of Overall and Site-Specific Cancers (Pancreatic, Liver, Thyroid, Lung): A Systematic Review and Meta-Analysis

Background: Gestational diabetes mellitus (GDM) is a common endocrine and metabolic disorder during pregnancy. However, current studies have not reached a consensus on the correlation between GDM and the risk of developing cancers. Objective: This systematic review and meta-analysis aims to comprehensively evaluate the association between GDM and the risk of overall cancer and cancers at specific sites (pancreatic cancer, thyroid cancer, liver cancer, lung cancer). Methods: A systematic search was conducted in PubMed, Web of Science, Scopus, EMBASE, and Cochrane Library databases from the establishment of the databases to 16 January 2025. Two researchers independently assessed the quality of the included studies using the Newcastle-Ottawa Scale and extracted relevant data. Data were analyzed using STATA Version 17.0. Results: This systematic review and meta-analysis included a total of 8 studies involving 1,936,836 participants. We calculated the pooled hazard ratio (HR) to evaluate the association, and the results showed that the pooled HR for overall cancer risk was 1.16 (95%CI: 1.04-1.28), indicating a significant increase in the risk of overall malignancies among patients with GDM. GDM was also significantly associated with the risk of pancreatic cancer (HR = 2.80; 95%CI: 1.20-6.55), thyroid cancer (HR = 1.21; 95%CI: 1.08-1.36), and liver cancer (HR = 1.33; 95%CI: 1.10-1.61). Additionally, the association between GDM and lung cancer was close to being statistically significant (HR = 1.19; 95%CI: 0.98-1.44). Conclusion: Our study suggests that GDM is associated with an increased risk of overall cancer, as well as pancreatic cancer, thyroid cancer, and liver cancer.

Endurance Training Alleviates Metabolic-Associated Fatty-Liver Disease (MAFLD)-Related Testicular Impairments via Endoplasmic Reticulum Stress Regulation

BACKGROUND

Metabolic-associated fatty liver disease (MAFLD), the most prevalent liver disorder globally, affects 20%-40% of the population and presents significant health challenges. Studies link MAFLD to male reproductive dysfunction, highlighting the need for effective interventions. This study investigates the impact of MAFLD on testicular function and evaluates the protective role of endurance training, with a focus on the GRP78-IRE-1α-ATF6 signaling pathway.

METHODS

Forty-four rats were allocated into two dietary groups (n = 22 each): a standard diet control group (C) and a high-fat diet supplemented with fructose water group (FL). After 17 weeks, histological analysis confirmed MAFLD development in the FL group, while the control group showed no pathological changes. Each dietary group was further subdivided into sedentary and endurance-trained (T) subgroups (n = 10 per subgroup), resulting in four experimental groups: C, C + T, FL + T, and FL. At the end of the research, thyroid stimulating hormone (TSH), sex hormones (testosterone), tumor necrosis factor-alpha (TNF-a) as well as GRP78, IRE-1α, and AFT6 expression were assessed.

RESULTS

Our results indicated that MAFLD led to significant weight gain, disrupted serum levels of thyroid-stimulating hormone, and impaired sex hormone profile. Additionally, MAFLD triggered ER stress, evidenced by dysregulated expression of genes in the GRP78-IRE-1α-ATF6 pathway. Remarkably, endurance training mitigated these adverse effects by normalizing hormonal profiles and restoring the expression of ER stress-related genes. These findings highlight the critical role of ER stress in MAFLD-induced male reproductive dysfunction.

CONCLUSION

Overall, the present study suggests endurance training as a promising treatment strategy for addressing MAFLD and its associated reproductive complications.

Metabolomics, network pharmacology, and microbiome analyses uncover the mechanisms of the Chinese herbal formula for the improvement of meat quality in spent hens

BACKGROUND

Meat originating from the spent hen is an important source of poultry meat production; however, multiple factors cause the decline in the meat quality of spent hens. Chinese herbs have been widely used as medicine for a long time to prevent diseases and as nutrient supplements to improve the product quality. This experiment explored the effects of adding 1.0% Chinese herbal formula (CHF, including 0.30% Leonurus japonicus Houtt., 0.20% Salvia miltiorrhiza Bge., 0.25% Ligustrum lucidum Ait., and 0.25% Taraxacum mongolicum Hand.-Mazz.) for 120 d to the spent hens' diet through metabolomics, network pharmacology, and microbiome strategies.

RESULTS

The results indicated that CHF supplementation improved the meat quality by reducing drip loss (P < 0.05), b* value (P = 0.058), and shear force (P = 0.099) and increasing cooked meat percentage (P = 0.054) and dry matter (P < 0.05) of breast muscle. The addition of CHF improved the nutritional value of breast muscle by increasing (P < 0.05) the content of C18:2n-6, n-6/n-3 polyunsaturated fatty acids (PUFA), total PUFA, PUFA-to-saturated fatty acids (SFA) ratio, and hypocholesterolemic-to-hypercholesterolemic ratio, and tending to increase serine content (P = 0.069). The targeted metabolomics analysis revealed that the biosynthesis of SFA, linoleic acid metabolism, fatty acid degradation, fatty acid elongation, and fatty acid biosynthesis pathways were enriched by CHF supplementation. Furthermore, the network pharmacology analysis indicated that CHF was closely associated with oxidative stress and lipid metabolism. The CHF supplementation increased the glutathione peroxidase level (P < 0.05) and upregulated gene expression related to the Nrf2 pathway (including HO-1, P < 0.05; Nrf2, P = 0.098; CAT, P = 0.060; GPX1, P = 0.063; and SOD2, P = 0.052) and lipid metabolism (including PPARγ, P < 0.05; SREBP1, P = 0.059; and CPT1A, P = 0.058). Additionally, CHF supplementation increased Firmicutes and decreased Bacteroidetes, Spirochaetes, and Synergistetes abundances (P < 0.05), which may contribute to better meat quality.

CONCLUSIONS

Our results suggest that CHF supplementation improved the quality and nutritional value of meat, which will provide a theoretical basis for the utilization of CHF as a feed additive in spent hens' diets.

Molecular Insights into the Inhibition of Lipid Accumulation in Hepatocytes by Unique Extracts of Ashwagandha

We investigated the effect of purified withanolides and extracts derived from Ashwagandha on steatosis, the abnormal accumulation of fat that can lead to non-alcoholic fatty liver disease (NAFLD). Collaborator of ARF (CARF, also known as CDKN2AIP, a protein that regulates hepatic lipid metabolism, fat buildup, and liver damage) was used as an indicator. Six withanolides (Withaferin A, Withanone, Withanolide B, Withanoside IV, Withanoside V, and Withanostraminolide-12 deoxy) reversed the decrease in CARF caused by exposure to free fatty acids (FFAs) in liver-derived cells (HepG2 hepatocytes). After analyzing the effects of these withanolides on CARF mRNA and protein levels, FFA accumulation, protein aggregation, and oxidative and DNA damage stresses, we selected Withaferin A and Withanone for molecular analyses. Using the palmitic-acid-induced fatty acid accumulation stress model in Huh7 cells, we found a significant reduction in the activity of the key regulators of lipogenesis pathways, including sterol regulatory element-binding protein-1c (SREBP-1c), fatty acid synthase (FASN), and peroxisome proliferator-activated receptors (PPARγ and PPARα). This in vitro study suggests that low, non-toxic doses of Withaferin A, Withanone, or Ashwagandha extracts containing these withanolides possess anti-steatosis and antioxidative-stress properties. Further in vivo and clinical studies are required to investigate the therapeutic potential of these Ashwagandha-derived bioactive ingredients for NAFLD.