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20 pages, 17893 KB  
Article
Integrative Multiomics Analysis Reveals the Ameliorative Effects of Astragalus membranaceus Extract on Metabolic Dysfunction-Associated Steatotic Liver Disease
by Jiayi An, Yi Li, Zunhan Zhang, Yaru Chang and Guanxiu Xiao
Molecules 2026, 31(7), 1120; https://doi.org/10.3390/molecules31071120 (registering DOI) - 28 Mar 2026
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a growing global health burden, yet effective therapeutic options remain limited. This study investigated the protective mechanisms of Astragalus membranous extract (AM) against high-fat diet (HFD)-induced MAFLD in mice using an integrated strategy combining network pharmacology, [...] Read more.
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a growing global health burden, yet effective therapeutic options remain limited. This study investigated the protective mechanisms of Astragalus membranous extract (AM) against high-fat diet (HFD)-induced MAFLD in mice using an integrated strategy combining network pharmacology, hepatic metabolomics, and 16S rRNA sequencing. UPLC–Q-Orbitrap–MS/MS identified 37 major constituents in AM, mainly phenolic acids and flavonoids. Iristectorin A, isorhamnetin, ononin, and rhamnocitrin were identified as key candidate compounds due to their relatively high abundance and confirmation as absorbed constituents in vivo. Network pharmacology and molecular docking indicated favorable interactions with hub targets (TNF, EGFR, and AKT1; binding energies < −5.0 kcal/mol) and highlighted the involvement of the AGE–RAGE signaling pathway and inflammation- and lipid metabolism-related processes. In vivo, AM significantly attenuated HFD-induced weight gain, decreased serum ALT and AST levels, and reduced hepatic lipid deposition. AM also alleviated oxidative stress by lowering malondialdehyde (MDA) and increasing superoxide dismutase (SOD) activity, while suppressing hepatic IL-1β and IL-6. Moreover, AM improved gut microbial homeostasis by restoring α-diversity and enriching beneficial genera, including Akkermansia and Bacteroides. Hepatic metabolomics further showed that AM partially normalized lipid metabolic disturbances, particularly glycerophospholipid and sphingolipid metabolism. Collectively, these results suggest that AM mitigates MASLD via a multi-component, multi-target mechanism, potentially through modulation of AGE–RAGE-associated inflammatory signaling and the gut–liver axis, supporting its development as a functional food-derived candidate for metabolic liver disorders. Full article
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11 pages, 320 KB  
Article
Effects of Outdoor Rearing System on the Growth Performance and Blood Parameters of Duroc Pigs
by Kaliyah Hayes, Andrea Gentry-Apple, Lin Yang, Julisa Cruz, Joseline Mora-Obrajero, Daisha Peele-Kendrick, Shilei Zhang, Derrick Coble and Yongjie Wang
Animals 2026, 16(7), 1040; https://doi.org/10.3390/ani16071040 (registering DOI) - 28 Mar 2026
Abstract
The objective of this study was to evaluate the physiological mechanisms and health resilience of Duroc pigs reared in an outdoor system compared to a conventional indoor system. A total of 24 Duroc pigs (approximately 3 months of age) were randomly assigned to [...] Read more.
The objective of this study was to evaluate the physiological mechanisms and health resilience of Duroc pigs reared in an outdoor system compared to a conventional indoor system. A total of 24 Duroc pigs (approximately 3 months of age) were randomly assigned to either an indoor (IN, n = 12) or an outdoor (OUT, n = 12) rearing system for a 45-day trial. Growth performance (body weight and ADG) and spleen organ index were not significantly different between the two rearing systems (p > 0.05). Hematological profiles, including leukocyte and erythrocyte indices, showed no significant differences (p > 0.05), although plateletcrit tended to decrease in the OUT group (p = 0.08). For serum biochemical parameters, pigs in the OUT group exhibited significantly higher concentrations of total protein, triglycerides, calcium, and sodium compared to those in the IN group (p < 0.05). Additionally, serum albumin and glucose levels tended to be higher in the OUT group (p < 0.01). No significant differences were observed in liver and muscle enzyme activities (AST, ALP, GGT, CK) between the treatments (p > 0.05). In conclusion, outdoor rearing did not compromise growth performance or induce chronic physiological stress or tissue damage in Duroc pigs. Instead, it promoted active energy and lipid mobilization, enhanced protein metabolism, and improved mineral homeostasis, demonstrating the robust physiological adaptability of the Duroc breed to outdoor environments. Full article
9 pages, 667 KB  
Article
Increased Agmatine Degradation in Children with Specific Learning Disorder
by Serkan Kapancık, Elif Abanoz, Serap Çetinkaya and Ahmet Ozan Kaleci
Int. J. Mol. Sci. 2026, 27(7), 3084; https://doi.org/10.3390/ijms27073084 (registering DOI) - 28 Mar 2026
Abstract
Specific Learning Disability (SLD) describes persistent difficulties in academic skills in reading, writing, and mathematics, despite having normal intelligence. The exact origin of SLD is unknown. However, it is thought that biological factors and environmental conditions, along with genetic factors, contribute to the [...] Read more.
Specific Learning Disability (SLD) describes persistent difficulties in academic skills in reading, writing, and mathematics, despite having normal intelligence. The exact origin of SLD is unknown. However, it is thought that biological factors and environmental conditions, along with genetic factors, contribute to the development of SLD. Agmatine, a neurotransmitter in the brain, plays a role in various biological processes. Agmatine has been reported to mediate antidepressant effects and neuroprotective effects, and it plays critical roles in learning and the processing of learned information into memory. Therefore, this study aimed to determine the relationship between SLD and agmatine metabolism by determining the enzyme levels of arginine decarboxylase (ADC) and agmatinase (AGMAT) in children with SLD. ADC and AGMAT levels in the blood serum of children with SLD and controls were analyzed using ELISA. When ADC levels in children with SLD (30.26 ± 5.06 ng/mL) were compared with those in the control group (29.82 ± 4.95 ng/mL), the difference was not statistically significant (p = 0.737). However, AGMAT levels in children with SLD (27.02 ± 4.46 ng/mL) were found to be statistically significantly higher than those in the control group (21.42 ± 3.98 ng/mL) (p < 0.001). In light of these findings, we can say that agmatine breakdown is significantly increased in children with SLD. Full article
(This article belongs to the Section Molecular Neurobiology)
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27 pages, 3359 KB  
Article
Effects of Dietary Lysophospholipids on Growth Performance, Hepatic Lipid Metabolism, Intestinal Health and Dietary Lipid Levels of Largemouth Bass (Micropterus salmoides)
by Xiaorui Fan, Yuqiang Wei, Jianguo Zhao, Yajun Wang, Jianhua Zhao and Qiyou Xu
Fishes 2026, 11(4), 204; https://doi.org/10.3390/fishes11040204 (registering DOI) - 27 Mar 2026
Abstract
This study investigated the effects of dietary lysophospholipids on growth performance, hepatic lipid metabolism, intestinal health, and dietary lipid levels of largemouth bass. The 56-day experiment included five groups: CON (0% lysophospholipids), LL50 (0.05% lysophospholipids), LP50 (0.05% lysophospholipids—0.5% oil), LP100 (0.1% lysophospholipids—1.0% oil), [...] Read more.
This study investigated the effects of dietary lysophospholipids on growth performance, hepatic lipid metabolism, intestinal health, and dietary lipid levels of largemouth bass. The 56-day experiment included five groups: CON (0% lysophospholipids), LL50 (0.05% lysophospholipids), LP50 (0.05% lysophospholipids—0.5% oil), LP100 (0.1% lysophospholipids—1.0% oil), and LP200 (0.1% lysophospholipids—2.0% oil), with 3 replicates (30 fish/replicate) per group. The results showed that compared with the CON group, dietary supplementation of 0.05% lysophospholipid had no significant effect on the growth performance of largemouth bass, but increased the crude protein content and decreased the crude lipid content in the whole body. An amount of 0.05% lysophospholipid improved hepatic lipid utilization efficiency. Specifically, this supplementation level promoted serum lipid transport (increased serum HDL-C content and decreased triglyceride and LDL-C contents), and enhanced hepatic lipid metabolism by regulating the expression of lipid metabolism-related genes (fas, hsl, and acc) and the levels of lipid metabolites (phosphatidylcholine and fatty acids), thereby reducing hepatic triglyceride content. In addition, 0.05% lysophospholipid improved intestinal health by increasing lipase activity and intestinal villus height, up-regulating the expression of the anti-inflammatory gene (tgf-β1) and tight junction protein genes (claudin-1, claudin-4, and zo-1), and down-regulating the expression of the pro-inflammatory gene (tnf-α). In terms of dietary lipid reduction, supplementation with 0.1% lysophospholipid allowed a 1% reduction in dietary lipid level without affecting the growth performance of largemouth bass, whereas at the same level of lysophospholipid supplementation, a 2% reduction in dietary lipid level resulted in decreased growth performance of largemouth bass. These findings provide theoretical support for the practical application of lysophospholipids, and demonstrate that reducing dietary lipid inclusion by adding lysophospholipids helps to reduce feed costs and improve aquaculture economic benefits. Full article
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23 pages, 2875 KB  
Article
Effects of High Moisture Corn Feeding on Weight Performance, Serum Immune Indices, Rumen Fermentation, and Metabolomics in Kazakh Rams
by Buweiaizhaer Maimaitimin, Tong Li, Subinuer Abuduli, Kadeliya Abudureyimu, Linhai Song, Liang Yang, Wei Shao and Wanping Ren
Animals 2026, 16(7), 1030; https://doi.org/10.3390/ani16071030 - 27 Mar 2026
Abstract
This study aimed to investigate the effects of feeding high-moisture corn (HMC) on weight performance, serum immune and antioxidant indices, rumen fermentation, microbial community, and metabolomics in Kazakh rams. A total of 32 healthy Kazakh rams were randomly divided into a control group [...] Read more.
This study aimed to investigate the effects of feeding high-moisture corn (HMC) on weight performance, serum immune and antioxidant indices, rumen fermentation, microbial community, and metabolomics in Kazakh rams. A total of 32 healthy Kazakh rams were randomly divided into a control group (CT, diet with only ordinary crushed corn) and an experimental group (GS, diet with 50% ordinary crushed corn + 50% HMC), following a 7-day adaptation period and a 120-day trial period. Results showed that the F/G was significantly lower in the GS group than in the CT group (p < 0.05). FBW, net weight gain and ADG increased by 4.58%, 8.69%, and 8.70%, respectively, while ADFI decreased by 7.04% (p > 0.05). Regarding serum immune indices, IgA in the GS group was significantly higher at 40 d (p < 0.01), and IgM was significantly higher at 40, 80, and 120 d (p < 0.05). For antioxidant indices, the SOD activity in the GS group was significantly higher than that in the CT group at 120 d (p < 0.01). The CAT activity in the GS group was significantly higher at 40, 80, and 120 d (p < 0.01). Among rumen fermentation parameters, the concentration of butyric acid in the GS group was significantly lower than in the CT group (p < 0.01). Microbial diversity analysis indicated no significant differences in Alpha- and Beta-diversity of rumen microorganisms between the two groups. However, the relative abundance of Firmicutes_A at the phylum level was significantly higher in the GS group (p < 0.05), and the abundance of Cryptobacteroides was significantly higher than in the CT group (p < 0.01). Rumen metabolomic analysis identified a total of 1357 differential metabolites, among which 1130 showed significant differences, with 459 upregulated and 671 downregulated. These were mainly enriched in pathways such as Glutathione metabolism, Beta-alanine metabolism, Sphingolipid metabolism, and lysine degradation. In conclusion, feeding HMC can improve feed conversion efficiency and weight performance in Kazakh rams, regulate the structure of dominant rumen microorganisms, and enhance immune and antioxidant capacities. Full article
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13 pages, 289 KB  
Article
Vitamin D Deficiency in Institutionalized Older Adults: Associations with Supplementation Practices but Not with Cognitive Decline or Dementia
by Larissa David Soares, Myrella Teixeira Rosales, Bruna Costa Silveira, Alice Moreira Rizzolli, Caroline Helen Santos Gonçalves Mazala, Isabela Thurow Lemes, Fabiana Da Silveira Santos Sinnott, Thiago Falson Santana, Érica Paiva Espinosa, Eduarda Neutzling Drawanz, Ana Beatriz Gonçalves Araújo, Nathalia Passos Moura, Aline Longoni, Diogo Onofre Souza, Maria Noel Marzano Rodrigues and Adriano Martimbianco De Assis
Nutrients 2026, 18(7), 1078; https://doi.org/10.3390/nu18071078 - 27 Mar 2026
Abstract
Background/Objectives: Population aging has been accompanied by increased institutionalization of older adults and a high prevalence of vitamin D deficiency in this group. Although the literature suggests a possible relationship between vitamin D and cognition, findings remain inconsistent, particularly in institutional settings. This [...] Read more.
Background/Objectives: Population aging has been accompanied by increased institutionalization of older adults and a high prevalence of vitamin D deficiency in this group. Although the literature suggests a possible relationship between vitamin D and cognition, findings remain inconsistent, particularly in institutional settings. This cross-sectional study aimed to investigate factors associated with vitamin D deficiency in institutionalized older adults, emphasizing the role of vitamin D supplementation and length of institutionalization, as well as to evaluate the association between serum vitamin D levels, cognitive decline, and dementia. Methods: A total of 104 older adults living in different long-term care institutions (LTCFs) in the city of Pelotas, RS, Brazil, were evaluated. Sociodemographic, clinical, and nutritional data were collected via interviews and medical record review. Serum 25-hydroxyvitamin D levels were categorized according to the Institute of Medicine cutoffs (<20 ng/mL and ≥20 ng/mL). Cognitive decline was assessed using the Mini-Mental State Examination, and dementia was evaluated with the Clinical Dementia Rating scale. Analyses included bivariate tests and binary logistic regression. Results: A high prevalence of vitamin D deficiency (52.9%), cognitive decline (83.6%), and questionable or mild dementia (79.4%) was observed. In multivariate analysis, vitamin D supplementation remained independently associated with vitamin D deficiency, whereas no significant association was observed between vitamin D levels and cognitive decline or dementia. Conclusions: Vitamin D deficiency in institutionalized older adults is predominantly associated with contextual and care-related factors rather than cognitive impairment, highlighting the importance of systematic nutritional monitoring and vitamin D supplementation strategies in institutional settings. Full article
17 pages, 790 KB  
Article
Serum SCFA and Nesfatin-1 Patterns in Inflammatory Bowel Disease: A Pilot Exploratory Study
by Paul Grama, Tamás Ilyés, Naomi-Adina Ciurea, Radu-Alexandru Fărcaș and Simona Bățagă
J. Clin. Med. 2026, 15(7), 2581; https://doi.org/10.3390/jcm15072581 - 27 Mar 2026
Abstract
Background: Short-chain fatty acids (SCFAs) support mucosal integrity and reduce inflammation, while nesfatin-1 is a neuropeptide with antiapoptotic, anti-inflammatory, antioxidant, and anorexigenic actions. Their roles in inflammatory bowel disease (IBD) and links to quality of life (QoL) are unclear. Methods: We [...] Read more.
Background: Short-chain fatty acids (SCFAs) support mucosal integrity and reduce inflammation, while nesfatin-1 is a neuropeptide with antiapoptotic, anti-inflammatory, antioxidant, and anorexigenic actions. Their roles in inflammatory bowel disease (IBD) and links to quality of life (QoL) are unclear. Methods: We conducted a cross-sectional study including adults with Crohn’s disease (CD), ulcerative colitis (UC), and healthy controls (HC). Serum total short-chain fatty acids and nesfatin-1 were measured using enzyme-linked immunosorbent assays (ELISA). Quality of life was assessed using the Inflammatory Bowel Disease Questionnaire (IBDQ). Group comparisons and correlation analyses were performed using non-parametric statistical methods. Results: Serum total SCFA concentrations did not differ significantly between patients with CD, UC, and HC (p = 0.29). Nesfatin-1 levels showed between-group variability, with lower values in CD compared with healthy controls, while patients with UC showed intermediate and variable levels (p = 0.064). An inverse correlation between SCFAs and nesfatin-1 was observed in UC and in the combined IBD cohort, but not in CD. Quality of life was comparably impaired in CD and UC. No statistically significant associations were observed between serum SCFAs or nesfatin-1 and IBDQ scores. Conclusions: In this pilot exploratory study, circulating SCFAs and nesfatin-1 showed distinct patterns across IBD subtypes, with evidence of subtype-specific associations between these biomarkers. However, no relationship with quality of life was demonstrated. Larger longitudinal studies are required to confirm these findings and clarify their clinical relevance. Full article
23 pages, 4076 KB  
Systematic Review
Clinical Efficacy and Safety of Shenqu Xiaoshi Oral Liquid for Functional Constipation in Children: A Systematic Review and Meta-Analysis
by Shen Li, Haobo Xu, Tian Geng and Zhongyue Li
Children 2026, 13(4), 464; https://doi.org/10.3390/children13040464 - 27 Mar 2026
Abstract
Aim: We aimed to evaluate the clinical efficacy and safety of Shenqu Xiaoshi Oral Liquid in the treatment of functional constipation in children. Methods: A comprehensive literature search was conducted from inception to 20 October 2025, across PubMed, Embase, Scopus, Web of Science, [...] Read more.
Aim: We aimed to evaluate the clinical efficacy and safety of Shenqu Xiaoshi Oral Liquid in the treatment of functional constipation in children. Methods: A comprehensive literature search was conducted from inception to 20 October 2025, across PubMed, Embase, Scopus, Web of Science, the Cochrane Library, Chinese VIP Information Database, China National Knowledge Infrastructure (CNKI), and Wan Fang Med Database. For quantitative analysis, the mean difference (MD) was used for continuous outcomes and the risk ratio (RR) for dichotomous outcomes. The methodological quality of the included studies was assessed using the Cochrane risk of bias tool. Statistical analyses were performed using RevMan 5.3 and Stata 13 software. Results: Eight studies involving 692 pediatric patients were included (Shenqu Xiaoshi Oral Liquid group: 345; control group: 347). Compared to the control group, Shenqu Xiaoshi Oral Liquid demonstrated superior clinical effectiveness [RR = 1.36, 95% CI: (1.25, 1.47); z = 7.11, p < 0.00001] and a lower recurrence rate [RR = 0.49, 95% CI: (0.26, 0.93); z = 2.18, p = 0.03]. Both the post-treatment [WMD = −0.91, 95% CI: (−0.97, −0.86); z = 31.94, p < 0.00001] and post-recurrence [WMD = −1.49, 95% CI: (−1.56, −1.41); z = 40.12, p < 0.00001] defecation intervals were shorter in the Shenqu Xiaoshi Oral Liquid group. No significant difference was observed in the incidence of adverse reactions between the two groups [RR = 0.67, 95% CI: (0.35, 1.29); z = 1.20, p = 0.23]. Furthermore, serum levels of motilin [WMD = 41.66, 95% CI: (34.17, 49.16); z = 10.90, p < 0.00001] and gastrin [WMD = 23.74, 95% CI: (7.30, 40.19); z = 2.83, p = 0.005] were significantly higher in the Shenqu Xiaoshi Oral Liquid group. Conclusions: Shenqu Xiaoshi Oral Liquid shows favorable clinical efficacy and an acceptable safety profile for treating functional constipation in children. However, these outcome measures are influenced by the limited sample size and potential heterogeneity of the included studies, warranting cautious interpretation of the results. Full article
(This article belongs to the Special Issue Pediatric Bowel Diseases: The Present and a Challenge for Future)
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14 pages, 428 KB  
Article
Positive Correlates of Sclerostin and Association with Peripheral Arterial Stiffness in Patients with Type 2 Diabetes Mellitus
by Bang-Gee Hsu, Jer-Chuan Li, Du-An Wu and Ming-Chun Chen
Medicina 2026, 62(4), 643; https://doi.org/10.3390/medicina62040643 - 27 Mar 2026
Abstract
Background and Objectives: Sclerostin or dickkopf-1 (DKK1) inhibits the canonical Wnt/β-catenin signaling pathway, which regulates vascular calcification and may contribute to the development of arterial stiffness. The brachial–ankle pulse wave velocity (baPWV) measures peripheral arterial stiffness (PAS). This study aimed to investigate [...] Read more.
Background and Objectives: Sclerostin or dickkopf-1 (DKK1) inhibits the canonical Wnt/β-catenin signaling pathway, which regulates vascular calcification and may contribute to the development of arterial stiffness. The brachial–ankle pulse wave velocity (baPWV) measures peripheral arterial stiffness (PAS). This study aimed to investigate the correlation between sclerostin and DKK1 levels and PAS in patients with type 2 diabetes mellitus (T2DM). Materials and Methods: Biochemical data and sclerostin and DKK1 levels were analyzed in the fasting blood samples of 125 patients with T2DM. baPWV measurements using the VaSera VS-1000 automatic pulse wave analyzer classified patients with values > 18.0 m/s on either side into the PAS group. Results: Among patients with T2DM, 47 (37.6%) were classified as having PAS. These patients exhibited higher hypertension prevalence (p = 0.002); greater age (p < 0.001); elevated systolic (p < 0.001) and diastolic blood (p = 0.012) pressures; and increased fasting glucose (p = 0.001), glycated hemoglobin (p = 0.008), triglyceride (p = 0.001), blood urea nitrogen (p < 0.001), and creatinine (p = 0.001) levels, urine albumin-to-creatinine ratio (p = 0.039), and C-reactive protein (p = 0.024) and serum sclerostin (p < 0.001) levels, but decreased estimated glomerular filtration rate (p < 0.001). Multivariate logistic regression analysis identified serum sclerostin level (odds ratio, 1.127; 95% confidence interval, 1.058–1.200; p < 0.001) as an independent PAS predictor in patients with T2DM. Serum log-transformed sclerostin levels were positively correlated with left (p = 0.005) and right (p = 0.001) baPWV via Spearman’s rank-order correlation coefficient analysis. Conclusions: Serum sclerostin levels, but not DKK1 levels, are positively correlated with PAS in patients with T2DM. Full article
(This article belongs to the Section Urology & Nephrology)
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15 pages, 1220 KB  
Article
Local and General Inflammatory Mediators Status in Patients with Oral Lichen Planus
by Irena Duś-Ilnicka, Anna Rybińska, Jakub Wronowicz, Agnieszka Rusiecka, Piotr Donizy and Małgorzata Radwan-Oczko
Biomedicines 2026, 14(4), 763; https://doi.org/10.3390/biomedicines14040763 - 27 Mar 2026
Abstract
Background: Oral Lichen Planus (OLP) is a chronic inflammatory, autoimmune disorder affecting the skin and mucosa classified within the broad group of Oral Potentially Malignant Disorders (OPMDs). Topical treatment is usually effective in resolving the oral inflammation associated with the process, and [...] Read more.
Background: Oral Lichen Planus (OLP) is a chronic inflammatory, autoimmune disorder affecting the skin and mucosa classified within the broad group of Oral Potentially Malignant Disorders (OPMDs). Topical treatment is usually effective in resolving the oral inflammation associated with the process, and the possible relationship to a systemic immunological reaction has not been widely discussed. The aim of this study was to explore the relationship between local and systemic inflammatory signatures in OLP by identifying potential markers in salivary and serum samples, as well as the topical treatment used to relieve inflammation. Methods: The study design was a cross-sectional case–control hospital-based study. A total of 50 blood samples, comprising 31 patients with OLP (study group) and 19 individuals without OLP status (control group), were tested for HLA-B27 in this study. Salivary and serum levels of Prostaglandin E2 (PGE2), matrix metalloprotease 8 (MMP-8), and human IL-1 beta (IL-1β) were measured within and between the control and OLP groups. Results: Salivary IL-1β levels were significantly higher in the OLP group than in controls (p = 0.001; W = 101.5). Serum MMP-8 concentrations were significantly lower in patients with OLP. Serum PGE2 levels were elevated in the OLP group; however, the difference was only borderline statistically significant after correction. HLA-B27 allele frequency in the study and control groups was compared with that in the Polish population. Using Fisher’s Exact Test for Count Data, p-value = 0.1404, no statistically significant differences were found between the control and study groups. Conclusions: These findings could suggest that inflammatory activity in OLP might be predominantly localized to the oral cavity rather than systemic. Elevated salivary IL-1β and reduced systemic MMP-8 levels could support the concept of local immune dysregulation; moreover, salivary IL-1β may serve as a potential non-invasive biomarker for the diagnosis and monitoring of OLP. Studies involving a larger number of subjects should be conducted to strengthen the provided conclusion. Full article
(This article belongs to the Section Molecular and Translational Medicine)
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17 pages, 487 KB  
Article
Clinical and Biochemical Correlates of Parathyroid Gland Burden in Patients Undergoing Parathyroidectomy for Secondary Hyperparathyroidism: A Retrospective Observational Study
by Muhammet Fatih Keyif and Sabahattin Destek
J. Clin. Med. 2026, 15(7), 2564; https://doi.org/10.3390/jcm15072564 - 27 Mar 2026
Abstract
Background/Objectives: Secondary hyperparathyroidism (SHPT) is a common and clinically significant complication of advanced chronic kidney disease and may require surgical intervention when medical therapy fails. This study aimed to evaluate the association between parathyroid gland burden, defined by gland number and size [...] Read more.
Background/Objectives: Secondary hyperparathyroidism (SHPT) is a common and clinically significant complication of advanced chronic kidney disease and may require surgical intervention when medical therapy fails. This study aimed to evaluate the association between parathyroid gland burden, defined by gland number and size parameters, and biochemical disease severity in patients undergoing parathyroidectomy for SHPT, and to assess the concordance between preoperative imaging findings and intraoperative observations. Although parathyroid gland enlargement is a hallmark of SHPT, the clinical relevance of parathyroid gland number and overall gland burden in relation to biochemical disease severity and the accuracy of preoperative imaging remains incompletely defined. Methods: This single-center, retrospective observational study included adult patients who underwent parathyroidectomy for secondary hyperparathyroidism between January 2015 and December 2020. Demographic, clinical, laboratory, imaging, intraoperative, and histopathological data were analyzed. Parathyroid gland burden was assessed based on gland number, largest gland diameter, and total gland burden. Associations between gland morphology and biochemical parameters were evaluated using correlation analyses and multivariable logistic regression. Agreement between preoperative imaging and intraoperative findings was assessed using diagnostic performance metrics, contingency analysis, and the weighted kappa coefficient. Results: A total of 101 patients were included. Patients with three or more enlarged parathyroid glands had significantly higher preoperative parathyroid hormone and alkaline phosphatase levels, higher serum phosphorus levels, and lower calcium and vitamin D levels (all p < 0.05). Total gland burden and largest gland diameter were positively correlated with parathyroid hormone and alkaline phosphatase levels. In multivariable analysis, higher parathyroid hormone levels, longer dialysis duration, and vitamin D deficiency were independently associated with high gland burden. Preoperative imaging demonstrated moderate agreement with intraoperative findings (weighted kappa = 0.46; 95% CI, 0.29–0.63). Separate evaluation of imaging modalities showed that both ultrasonography and scintigraphy had relatively high sensitivity but limited specificity for detecting extensive gland involvement. Conclusions: In patients undergoing parathyroidectomy for secondary hyperparathyroidism, increased parathyroid gland burden is associated with greater biochemical disease severity. Preoperative imaging shows limited concordance with intraoperative findings and should be interpreted cautiously, particularly in the presence of multiglandular disease. These findings support the integration of morphological parameters into comprehensive preoperative assessment while highlighting the need for larger prospective, multicenter studies with standardized imaging protocols and long-term follow-up. Full article
(This article belongs to the Section General Surgery)
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13 pages, 836 KB  
Article
Elevated Relative Levels of the C-3 Epimer of 25-Hydroxyvitamin D in Patients with Cirrhosis
by Caroline S. Stokes, Matthias C. Reichert, Pascal Schorr, Frank Grünhage, Dietrich A. Volmer and Frank Lammert
Nutrients 2026, 18(7), 1071; https://doi.org/10.3390/nu18071071 - 27 Mar 2026
Abstract
Background: Elevated levels of the C-3 epimer (3-epi-25(OH)D) of 25-hydroxyvitamin D (25(OH)D) have been identified in premature infants as compared to most adults, and an immature liver has been suggested as a possible cause. We hypothesised that patients with cirrhosis might present [...] Read more.
Background: Elevated levels of the C-3 epimer (3-epi-25(OH)D) of 25-hydroxyvitamin D (25(OH)D) have been identified in premature infants as compared to most adults, and an immature liver has been suggested as a possible cause. We hypothesised that patients with cirrhosis might present with elevated C-3 epimerisation due to impaired liver function. The aim was to assess whether 3-epi-25(OH)D levels differ in patients with chronic liver disease with cirrhosis vs. those without cirrhosis. Methods: A total of 309 patients were included (254 patients with cirrhosis vs. 55 without cirrhosis). Serum 25(OH)D and 3-epi-25(OH)D levels were determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Results: Patients with cirrhosis had significantly higher median relative 3-epi-25(OH)D concentrations, as compared to patients without cirrhosis (7.4% (5.5–10.4) vs. 4.8% (2.4–5.7), respectively; p < 0.001). They also had similar absolute 3-epi-25(OH)D levels (despite having lower 25(OH)D serum concentrations) than patients without cirrhosis. A progressive increase in relative 3-epi-25(OH)D levels was observed with more advanced cirrhosis (p < 0.001). An analysis of the ROC area under the curve determined 6% as the optimal cut-off for relative 3-epi-25(OH)D. All patients with Child–Pugh stage C and 88.6% with stage B were above the 6% cut-off and had significantly higher absolute serum 3-epi-25(OH)D concentrations (0.9 ng/mL vs. 0.6 ng/mL; p < 0.05) and lower serum 25(OH)D levels (9.3 vs. 14.1 ng/mL; p < 0.001) than patients <6% cut-off. Conclusions: These results reflect the marked increases in relative 3-epi-25(OH)D levels that occur with cirrhosis. The specific hepatic metabolic alterations still need to be unravelled, including whether cirrhosis might lead to reduced epimer clearance. Full article
(This article belongs to the Section Micronutrients and Human Health)
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16 pages, 283 KB  
Article
The Relationship Between Serum Neurosteroids and Oxytocin Levels and Craving, Aggression and Emotion Regulation in Patients with Methamphetamine Use Disorder
by Hacer Akbas Cakmak, Ahmet Bulent Yazici, Derya Guzel Erdogan, Yavuz Selim Ogur and Esra Yazici
Med. Sci. 2026, 14(2), 169; https://doi.org/10.3390/medsci14020169 - 27 Mar 2026
Abstract
Background: This study aimed to investigate the relationship between serum neuroactive steroids (NAS) and oxytocin and craving and psychosocial functioning in men diagnosed with methamphetamine use disorder (MUD). Methods: In this observational cross-sectional study, 40 men with MUD (PG) and 41 [...] Read more.
Background: This study aimed to investigate the relationship between serum neuroactive steroids (NAS) and oxytocin and craving and psychosocial functioning in men diagnosed with methamphetamine use disorder (MUD). Methods: In this observational cross-sectional study, 40 men with MUD (PG) and 41 non-substance-use-disorder controls (CG) completed measures of emotion dysregulation (DERS-16), attachment (ECR-R), aggression (BPAQ), and suicidal ideation (BSS). PG additionally completed the Substance Craving Scale (SCS) and Addiction Profile Index (API). Serum allopregnanolone (ALLO), DHEAS, testosterone, 17β-estradiol (E2), and oxytocin were assayed. Results: The results indicated that the PG exhibited significantly higher scores than the CG across all psychological measures. Robust adjusted group effects were observed for DERS-16 (Model 1: F = 35.507, p < 0.001; Model 2: F = 18.225, p < 0.001) and trait anger (Model 1: F = 41.104, p < 0.001; Model 2: F = 16.732, p < 0.001). Notably, serum levels of ALLO, DHEAS, testosterone, E2, and oxytocin did not differ significantly between groups. However, hormonal measures were strongly intercorrelated within both groups (r ≈ 0.877–0.936, all p < 0.001). In the PG, craving demonstrated positive correlations with DHEAS (r = 0.384, p = 0.014), testosterone (r = 0.415, p = 0.008), E2 (r = 0.360, p = 0.023), and oxytocin (r = 0.350, p = 0.027). A multivariable model analyzing craving was statistically significant (R2 = 0.350; F(3,36) = 6.474, p = 0.001), with composite hormonal factor (B = 2.390, p = 0.016) serving as an independent predictor, while API Excluding Craving(API-EC) (p = 0.094) and DERS-16 did not emerge as a significant factor (p = 0.056). In hormone-specific models controlling for API-EC and DERS-16, DHEAS (p = 0.012), testosterone (p = 0.007), oxytocin (p = 0.023), and E2 (p = 0.023) retained significance after false discovery rate (FDR) correction; ALLO did not (p = 0.055). Conclusions: Despite the absence of significant differences in peripheral NAS and oxytocin levels between groups, men with MUD exhibited pronounced psychosocial impairments. The craving experienced during inpatient treatment was primarily elucidated by an integrated endocrine profile. These findings underscore the necessity for larger longitudinal studies incorporating repeated hormonal assessments to further explore these relationships. Full article
(This article belongs to the Section Neurosciences)
11 pages, 239 KB  
Article
Early Vascular Aging and Subclinical Myocardial Deformation in Children with β-Thalassemia Major: The Role of Asymmetric Dimethylarginine
by Pelin Kosger, Zeynep Canan Özdemir, Ayse Sulu, Özcan Bör and Birsen Uçar
Children 2026, 13(4), 461; https://doi.org/10.3390/children13040461 - 27 Mar 2026
Abstract
Background: Children with β-thalassemia major (β-TM) survive longer due to advances in transfusion and chelation therapy; however, cardiovascular complications have emerged as a leading cause of long-term morbidity. Chronic hemolysis, oxidative stress, and iron overload may promote early endothelial dysfunction and premature vascular [...] Read more.
Background: Children with β-thalassemia major (β-TM) survive longer due to advances in transfusion and chelation therapy; however, cardiovascular complications have emerged as a leading cause of long-term morbidity. Chronic hemolysis, oxidative stress, and iron overload may promote early endothelial dysfunction and premature vascular aging, yet their impact on myocardial deformation in pediatric patients remains incompletely characterized. Objectives: To evaluate subclinical myocardial dysfunction and arterial stiffness in children with β-TM and to investigate hemolysis-related changes in asymmetric dimethylarginine (ADMA) and L-arginine as biomarkers of endothelial dysfunction in relation to cardiovascular involvement. Methods: Twenty-four children with β-TM and 20 age-matched healthy controls were included. Cardiac structure and myocardial deformation were assessed by conventional echocardiography, tissue Doppler imaging, and speckle-tracking strain analysis. Arterial stiffness was evaluated using oscillometric pulse wave analysis and bilateral carotid intima–media thickness (CIMT). Serum ADMA and L-arginine levels were measured, and hemoglobin, reticulocyte count, and ferritin levels were recorded. Results: Children with β-thalassemia major demonstrated significantly increased arterial stiffness compared with controls, including higher PWV (4.61 ± 0.37 vs. 4.38 ± 0.31), AIx@75 (augmentation index at 75 bpm) (28.5 ± 8.34 vs. 22.8 ± 6.51), left CIMT [0.45 (0.39–0.51) vs. 0.41 (0.38–0.46)], and right CIMT [0.43 (0.39–0.54) vs. 0.40 (0.34–0.46)]. In addition, patients exhibited reduced global longitudinal strain (−19.3 ± 2.91 vs. −21.84 ± 1.91), prolonged isovolumetric relaxation time [53 (37–71) vs. 45 (37–55)], and elevated E/Em (8.44 ± 2.19 vs. 6.92 ± 1.10). ADMA levels were significantly higher in patients (0.54 ± 0.19 vs. 0.39 ± 0.22) and were positively associated with reticulocyte counts and inversely correlated with hemoglobin levels. In addition, both ADMA and ferritin levels were positively correlated with arterial stiffness indices and left ventricular filling pressures. Conclusions: Children with β-thalassemia major exhibit features suggestive of early cardiovascular aging, including impaired myocardial deformation, diastolic involvement, and increased arterial stiffness. The observed association between ADMA levels and markers of hemolysis, vascular stiffness, and myocardial deformation highlights the potential involvement of endothelial dysfunction in premature myocardial–vascular remodeling. These findings suggest that ADMA may serve as a promising biomarker for early cardiovascular risk in pediatric β-thalassemia major; however, further longitudinal and multi-center studies are needed to confirm its clinical utility for risk stratification. Full article
(This article belongs to the Section Pediatric Cardiology)
13 pages, 1676 KB  
Article
Serum Eosinophil Cationic Protein (ECP) as a Biomarker for Distinguishing Pediatric Allergic Airway Diseases
by Xiaolin Chen, Siyu Tan, Qinxue Lu, Ting Liu and Yongmei Jiang
Int. J. Mol. Sci. 2026, 27(7), 3045; https://doi.org/10.3390/ijms27073045 - 27 Mar 2026
Abstract
This study evaluated serum eosinophil cationic protein (ECP) as a biomarker for pediatric allergic airway diseases. A cross-sectional analysis was performed on children (1–17 years) with allergic asthma (AA, n = 124), allergic rhinitis (AR, n = 74), acute bronchitis (AB, n = [...] Read more.
This study evaluated serum eosinophil cationic protein (ECP) as a biomarker for pediatric allergic airway diseases. A cross-sectional analysis was performed on children (1–17 years) with allergic asthma (AA, n = 124), allergic rhinitis (AR, n = 74), acute bronchitis (AB, n = 72), and healthy controls (HC, n = 58). Serum ECP, total IgE, eosinophil counts, allergen sensitization, and lung function were measured. Diagnostic performance was assessed using receiver operating characteristic (ROC) curves, and correlations among biomarkers were examined. Compared with HC, serum ECP levels were significantly elevated across all disease groups (AA, AR, and AB), with a particularly marked difference observed between AA and AR patients (p < 0.0001). The combination of ECP and IgE significantly improved the diagnostic accuracy for AA (AUC = 0.9494) and AR (AUC = 0.9501). Higher ECP levels were associated with increased sensitization to specific inhalant allergens and impaired pulmonary function, particularly in small airway indices. Serum ECP reflects eosinophil-mediated airway inflammation and enhances diagnostic performance for pediatric AA and AR, supporting its role as an auxiliary biomarker in evaluating pediatric allergic airway diseases. Full article
(This article belongs to the Section Molecular Immunology)
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