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1.
J Nutr ; 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-39025330

ABSTRACT

BACKGROUND: The investigation of dietary micronutrients intakes and the risk of alcoholic liver disease (ALD) based on observational studies was limited. OBJECTIVES: Our study aimed to explore the associations of 30 dietary micronutrients intakes with the risk of ALD, interactions between dietary micronutrients and genetic variation, and mediation effects of blood and urinary biomarkers on the associations between dietary micronutrients and the risk of ALD. METHODS: A case-control study was conducted within the UK Biobank cohort, with 231 incident ALD cases and 1,386 controls. Dietary data were collected using a dietary questionnaire that relied on a 24-hour dietary recall of the previous day. Logistic regression models were employed to assess the associations of dietary micronutrients intakes with the risk of ALD. We conducted stratified analyses on the associations between dietary micronutrients intakes and the risk of ALD by PNPLA3 rs738409 and tested the interactions between dietary micronutrients and genetic variation. In addition, we conducted mediation analyses to investigate the mediating effects of biomarkers on the associations between dietary micronutrients and the risk of ALD. RESULTS: Our findings indicated significant inverse associations of thiamin, riboflavin, niacin equivalent, pantothenic acid, vitamin B6, folate, vitamin E, calcium, magnesium, phosphorus, potassium, copper, iodine, and manganese with the risk of ALD (all false discovery rate-Ptrend < 0.050). We also found a significant interaction between PNPLA3 rs738409 and magnesium (Pinteraction= 0.028). Creatinine (enzymatic) in urine, aspartate aminotransferase, and insulin-like growth factor 1 (IGF-1) were the top three biomarkers with the highest number of significant mediation effects on the associations between the dietary micronutrients and the risk of ALD. CONCLUSIONS: Dietary intakes of thiamin, riboflavin, niacin equivalent, pantothenic acid, vitamin B6, folate, vitamin E, calcium, magnesium, phosphorus, potassium, copper, iodine, and manganese were inversely associated with the risk of ALD.

2.
Heliyon ; 10(13): e33477, 2024 Jul 15.
Article in English | MEDLINE | ID: mdl-39035516

ABSTRACT

Objective: The short-term quality of life of patients can be enhanced by performing Inflatable Video-Assisted Mediastinoscopic Transhiatal Esophagectomy (IVMTE). Nevertheless, there is limited research on how it impacts postoperative acute and chronic pain in individuals diagnosed with esophageal cancer.Hence, this research aimed to examine the impact of IVMTE and minimally invasive Mckeown esophagectomy (MIME) on the occurrence of acute and chronic pain following surgery in individuals diagnosed with esophageal cancer. Methods: A retrospective, propensity score matching analysis was adopted. In total, 133 patients with esophageal cancer who underwent IVMTE and MIME between January 2020 and December 2021 were part of the study. Among them, 38 patients underwent IVMTE and 95 patients underwent MIME. Following the propensity score matching analysis, 36 patients were included in each group. Patients' postoperative pain was evaluated using the numerical rating scale (NRS). Results: The IVMTE group (Group A) had significantly reduced operation time and intraoperative blood loss compared to the MIME group (Group B) (P < 0.05). NRS scores on the 1st, 2nd, 3rd, and 7th days after surgery, as well as on the 3rd and 6th months post-surgery, were notably reduced in the IVMTE group (Group A) compared to the MIME group (Group B) (P < 0.05). Univariate and multivariate analysis showed that chronic pain occurred postoperative 3rd months was related to the operation methods (P < 0.05). Univariate analysis showed that chronic pain occurred postoperative 6th months was related to the operation time, postoperative 14th days NRS scores and operation methods (P < 0.05). Multivariate analysis showed that chronic pain occurred postoperative 6th months was related to the operation methods (P < 0.05). Conclusion: The results showed that the operation methods were the main risk factors for postoperative chronic pain. The compared with MIME, IVMTE can further reduce the acute and chronic pain of patients with esophageal cancer.

3.
Front Nutr ; 11: 1362615, 2024.
Article in English | MEDLINE | ID: mdl-39010855

ABSTRACT

Background: Modifiable factors were found to be associated with the risk of irritable bowel syndrome (IBS) in observational studies, but whether these associations are causal is uncertain. We conducted a Mendelian randomization (MR) study to systematically explore the causal associations of modifiable factors with IBS. Methods: Summary-level statistical data for IBS was obtained from a genome-wide association study (GWAS) meta-analysis of UK Biobank (40,548 cases and 293,220 controls) and the international collaborative Bellygenes initiative (12,852 cases and 139,981 controls). Genetic instruments associated with the exposures at the genome-wide significance (p < 5 × 10-8) level were selected from previous GWASs. Mendelian randomization was performed using inverse-variance weighted (IVW) method, supplemented with several sensitivity analyses to evaluate potentially causal relationships between identified contributing factors and IBS. Furthermore, we applied another database from FinnGen (8,116 IBS cases and 276,683 controls) to testify the reliability of the significant associations. Results: Seven convincing modifiable factors were significantly associated with IBS after correction for multiple testing. Genetically predicted smoking initiation (OR = 1.12, 95% CI = 1.06-1.18, p = 1.03 × 10-4), alcohol consumption (OR = 0.47, 95% CI = 0.34-0.64, p = 3.49 × 10-6), sedentary behavior (OR = 1.17, 95% CI = 1.07-1.28, p = 4.02 × 10-4), chronotype (OR = 0.92, 95% CI = 0.88-0.96, p = 4.42 × 10-4), insomnia (OR = 1.19, 95% CI = 1.15-1.24, p = 7.59 × 10-19), education (OR = 0.80, 95% CI = 0.74-0.88, p = 5.34 × 10-7), and visceral adiposity (OR = 1.15, 95% CI = 1.06-1.24, p = 7.96 × 10-4). We additionally identified several suggestive factors, including serum magnesium, serum phosphorus, physical activity, lifetime smoking, intelligence, lean body mass, and body mass index (BMI). After pooling the effect estimates from FinnGen, the associations remained significant except for chronotype. Conclusion: This MR analysis verified several modifiable risk factors for IBS, thus prevention strategies for IBS should be considered from multiple perspectives on these risk factors.

4.
J Hazard Mater ; 476: 135233, 2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39029190

ABSTRACT

Chlorinated pollutants may follow distinct degradation pathways in anaerobic environments compared to aerobic settings. However, the understanding of the behaviors and fate of dichlorodiphenyltrichloroethanes (DDTs) under anaerobic conditions remains limited. To address this knowledge gap, we conducted a study on flooded soil samples collected from three typical paddy fields in China using an integrated approach of enantiomer-specific analysis and compound-specific stable carbon isotope analysis. It is unexpected that the dichlorodiphenyldichloroethane /dichlorodiphenyldichloroethylene ratios (DDD/DDE=(o,p'-DDD+p,p'-DDD)/(o,p'-DDE+p,p'-DDE)) were below 1 in over 90 % of the samples. This might be attributed to the higher recalcitrance of p,p'-DDE, which concentrations were found to be 36 times higher than p,p'-DDD on average. There were 71.7 % of the samples showing enantiomeric fractions (EFs) of o,p'-DDT below 0.5, indicating a preferential accumulation of the (-)-enantiomer. The δ13C values of the anaerobic metabolite o,p'-DDD (-24.76 ± 1.35 ‰ to -34.39 ± 0.20 ‰) all deviated negatively from the initial product, while those of the aerobic metabolite o,p'-DDE (-23.61 ± 0.48 ‰ to -38.95 ± 0.81 ‰) displayed either negative or positive deviations. This demonstrates that o,p'-DDD is the primary metabolite of o,p'-DDT under anaerobic conditions. However, no clear correlations were observed between the δ13C and EF of o,p'-DDT. This study underscores the importance of such an integrated methodology in unraveling the fate and behaviors of DDTs in complex environmental systems.

5.
J Hazard Mater ; 476: 135224, 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-39029187

ABSTRACT

Understanding the emission characteristics of particulate matter and associated heavy metals is essential for assessing their environmental and health impacts post-emission, as well as for identifying potential control technologies for the sources. Here, a field test was conducted at two advanced smelting plants equipped with comprehensive air pollution control devices. The particles emitted from different stages of lead and zinc smelting exhibited bi-modal size distributions, with peaks observed in PM0.1-1.0 and PM2.5-10, respectively. Particulate-bound Pb was identified as the predominant Pb species in the flue gas, primarily originating from ore crushing. Consequently, over 80 % of Pb was emitted in the form of coarse particles, a marked contrast to coal-fired power plants where Pb concentrated on fine particles. High efficiencies in Pb removal were achieved by dust collectors, flue gas purification systems, and acid plants with desulfurization systems, resulting in overall Pb emission factors in lead and zinc smelting were only 89.3 and 2.60 g t-1 (of metal production), respectively. Importantly, the contribution of gas-phase Pb, which accounts for approximately 16.6 % of total emissions, must not be neglected in future emission monitoring and control efforts.

6.
Pathogens ; 13(7)2024 Jul 02.
Article in English | MEDLINE | ID: mdl-39057785

ABSTRACT

We aimed to investigate the species composition of a small mammal community and the prevalence of Echinococcus spp. in a typical endemic area of the Tibetan Plateau. One pika and five rodent species were identified based on the morphological characteristics of 1278 small mammal specimens collected during 2014-2019. Detection of Echinococcus DNA in tissue samples from small mammal specimens revealed that Ochotona curzoniae (pika, total prevalence: 6.02%, 26/432), Neodon fuscus (5.91%, 38/643), N. leucurus (2.50%, 3/120), and Alexandromys limnophilus (21.74%, 10/46) were infected by both E. multilocularis and E. shiquicus; Cricetulus longicaudatus (16.67%, 1/6) was infected by E. shiquicus; and no infection was detected in N. irene (0/15). Neodon fuscus and O. curzoniae were the two most abundant small mammal species. There was no significant difference in the prevalence of pika and the overall rodent species assemblage (6.26%, 53/846); however, the larger rodent populations suggested that more attention should be paid to their role in the transmission of echinococcosis in the wildlife reservoir, which has long been underestimated. Moreover, although DNA barcoding provides a more efficient method than traditional morphological methods for identifying large numbers of small mammal samples, commonly used barcodes failed to distinguish the three Neodon species in this study. The close genetic relationships between these species suggest the need to develop more powerful molecular taxonomic tools.

7.
Cancer Res ; 2024 Jun 04.
Article in English | MEDLINE | ID: mdl-38832928

ABSTRACT

Breast cancer includes several subtypes with distinct characteristic biological, pathological, and clinical features. Elucidating subtype-specific genetic etiology could provide insights into the heterogeneity of breast cancer to facilitate development of improved prevention and treatment approaches. Here, we conducted pairwise case-case comparisons among five breast cancer subtypes by applying a case-case GWAS (CC-GWAS) approach to summary statistics data of the Breast Cancer Association Consortium. The approach identified 13 statistically significant loci and eight suggestive loci, the majority of which were identified from comparisons between triple-negative breast cancer (TNBC) and luminal A breast cancer. Associations of lead variants in 12 loci remained statistically significant after accounting for previously reported breast cancer susceptibility variants, among which two were genome-wide significant. Fine mapping implicated putative functional/causal variants and risk genes at several loci, e.g., 3q26.31/TNFSF10, 8q22.3/NACAP1/GRHL2, and 8q23.3/LINC00536/TRPS1, for TNBC as compared to luminal cancer. Functional investigation further identified rs16867605 at 8q22.3 as a SNP that modulates enhancer activity of GRHL2. Subtype-informative polygenic risk scores (PRS) were derived, and patients with a high subtype-informative PRS had an up to 2-fold increased risk of being diagnosed with TNBC instead of luminal cancers. The CC-GWAS PRS remained statistically significant after adjusting for TNBC PRS derived from traditional case-control GWAS in The Cancer Genome Atlas and the African Ancestry Breast Cancer Genetic Consortium. The CC-GWAS PRS was also associated with overall survival and disease-specific survival among breast cancer patients. Overall, these findings have advanced our understanding of the genetic etiology of breast cancer subtypes, particularly for TNBC.

8.
Int J Biol Macromol ; 272(Pt 1): 132728, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38825295

ABSTRACT

Intramuscular fat (IMF) content is mainly determined by intramuscular preadipocyte adipogenesis. Epigenetic modifications are known to have a regulatory effect on IMF. As N6-methyladenosine (m6A) is the most abundant epigenetic modification in eukaryotic RNAs. In the present study, we used m6A methylation and RNA sequencing (seq) to identify the m6A-modified RNAs associated with the adipogenic differentiation of intramuscular preadipocytes. Among them, the expression and m6A level of phosphorylase kinase subunit G1 (PHKG1) were found to be significantly changed during adipogenesis. Further studies revealed that knockdown of the methylase METTL3 decreased the m6A methylation of PHKG1 and led to a reduction in PHKG1. Moreover, knockdown of PHKG1 promoted adipogenic differentiation by upregulating the expression of adipogenic genes. In addition, we found that the IMF content in the longissimus thoracis (LT) of Bamei (BM) pigs was greater than that in Large White (LW) pigs, whereas the m6A and PHKG1 expression levels were lower in BM pigs. These findings indicate that the m6A level and expression of PHKG1 were significantly correlated with IMF content and meat quality. In conclusion, this study sheds light on the mechanism by which m6A modification regulates IMF deposition.


Subject(s)
Adenosine , Adipocytes , Adipogenesis , Animals , Adipocytes/metabolism , Adipocytes/cytology , Methylation , Swine , Adipogenesis/genetics , Adenosine/analogs & derivatives , Adenosine/metabolism , Phosphorylase Kinase/genetics , Phosphorylase Kinase/metabolism , Lipid Metabolism/genetics , Muscle, Skeletal/metabolism , Cell Differentiation/genetics
9.
Ecotoxicol Environ Saf ; 281: 116604, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38896900

ABSTRACT

Irritable bowel syndrome (IBS) patients exhibit significantly lower levels of serum selenium (Se) compared to healthy controls. This study integrates a prospective cohort analysis and animal experiments to investigate Se deficiency as a potential risk factor for IBS. Using data from the UK Biobank, a longitudinal analysis was conducted to explore the associations between dietary Se intake and the risk of incident IBS. In animal study, C57BL/6 mice were fed diets with normal (0.2 ppm) or low (0.02 ppm) Se levels to assess the impacts of Se deficiency on IBS symptoms. Furthermore, we performed 16 S rRNA sequencing, untargeted colonic fecal metabolomics analysis, and colon transcriptome profiling to uncover the regulatory mechanisms underlying Se deficiency-induced IBS. The analysis of UK Biobank data revealed a significant correlation between low dietary Se levels and an increased incidence of IBS. In the experimental study, a low Se diet induced IBS symptoms, evidenced by elevated abdominal withdrawal reflex scores, colon inflammation, and severe pathological damage to the colon. Additionally, the low Se diet caused disturbances in gut microbiota, characterized by an increase in Faecalibaculum and Helicobacter, and a decrease in Bifidobacterium and Akkermansia. Combined colonic fecal metabolomics and colon transcriptome analysis indicated that Se deficiency might trigger IBS through disruptions in pathways related to "bile excretion", "steroid hormone biosynthesis", "arachidonic acid metabolism", and "drug metabolism-cytochrome P450". These findings underscore the significant adverse effects of Se deficiency on IBS and suggest that Se supplementation should be considered for IBS patients.


Subject(s)
Gastrointestinal Microbiome , Irritable Bowel Syndrome , Mice, Inbred C57BL , Selenium , Animals , Selenium/deficiency , Gastrointestinal Microbiome/drug effects , Mice , United Kingdom , Feces/chemistry , Male , Humans , Biological Specimen Banks , Female , Colon/drug effects , Colon/pathology , Diet , Middle Aged , Prospective Studies , UK Biobank
10.
J Biol Chem ; 300(7): 107426, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38823637

ABSTRACT

Skeletal muscle is heterogeneous tissue, composed of fast-twitch fibers primarily relying on glycolysis and slow-twitch fibers primarily relying on oxidative phosphorylation. The relative expression and balance of glycolysis and oxidative phosphorylation in skeletal muscle are crucial for muscle growth and skeletal muscle metabolism. Here, we employed multi-omics approaches including transcriptomics, proteomics, phosphoproteomics, and metabolomics to unravel the role of circMYLK4, a differentially expressed circRNA in fast and slow-twitch muscle fibers, in muscle fiber metabolism. We discovered that circMYLK4 inhibits glycolysis and promotes mitochondrial oxidative phosphorylation. Mechanistically, circMYLK4 interacts with the voltage-gated calcium channel auxiliary subunit CACNA2D2, leading to the inhibition of Ca2+ release from the sarcoplasmic reticulum. The decrease in cytoplasmic Ca2+ concentration inhibits the expression of key enzymes, PHKB and PHKG1, involved in glycogen breakdown, thereby suppressing glycolysis. On the other hand, the increased fatty acid ß-oxidation enhances the tricarboxylic acid cycle and mitochondrial oxidative phosphorylation. In general, circMYLK4 plays an indispensable role in maintaining the metabolic homeostasis of skeletal muscle.


Subject(s)
Glycolysis , Oxidative Phosphorylation , Animals , Mice , Energy Metabolism , Calcium Channels/metabolism , Calcium Channels/genetics , Muscle, Skeletal/metabolism , Humans , Calcium/metabolism , Male
11.
Int J Gen Med ; 17: 1949-1965, 2024.
Article in English | MEDLINE | ID: mdl-38736664

ABSTRACT

Purpose: This study aims to investigate the process of small cell lung cancer (SCLC) patients from achieving optimal efficacy to experiencing disease progression until death. It examines the predictive value of the treatment response on progression free survival (PFS) and overall survival (OS) of SCLC patients. Patients and Methods: We conducted a retrospective analysis on 136 SCLC patients diagnosed from 1992 to 2018. Important prognostic factors were identified to construct nomogram models. The predictive performance of the models was evaluated using the receiver operating characteristic curves and calibration curves. Survival differences between groups were compared using Kaplan-Meier survival curves. Subsequently, an independent cohort consisting of 106 SCLC patients diagnosed from 2014 to 2021 was used for validation. Results: We constructed two nomograms to predict first-line PFS (PFS1) and OS of SCLC. The area under the receiver operating characteristic curves for the PFS1 nomogram predicting PFS at 3-, 6-, and 12-months were 0.919 (95% CI: 0.867-0.970), 0.908 (95% CI: 0.860-0.956) and 0.878 (95% CI: 0.798-0.958), and for the OS nomogram predicting OS at 6-, 12-, and 24-months were 0.814 (95% CI: 0.736-0.892), 0.819 (95% CI: 0.749-0.889) and 0.809 (95% CI: 0.678-0.941), indicating those two models with a high discriminative ability. The calibration curves demonstrated the models had a high degree of consistency between predicted and observed values. According to the risk scores, patients were divided into high-risk and low-risk groups, showing a significant difference in survival rate. And these findings were validated in another independent validation cohort. Conclusion: Based on the patients' treatment response after standardized treatment, we developed and validated two nomogram models to predict PFS1 and OS of SCLC. The models demonstrated good accuracy, reliability and clinical applicability by validating in an independent cohort.

12.
J Thorac Dis ; 16(4): 2432-2442, 2024 Apr 30.
Article in English | MEDLINE | ID: mdl-38738220

ABSTRACT

Background: In 2015, the World Health Organization (WHO) included spread through air space (STAS) as a new invasive mode of lung cancer. As a new mode of lung cancer dissemination, STAS has a significant and negative impact on patient prognosis. The surgical approach as well as lymph node dissection (LND) for STAS-positive patients is currently unclear. The aim of this study was to investigate the impact of different surgical approaches to STAS and LND on the prognosis of patients with ≤2 cm stage IA lung adenocarcinoma (LUAD). This study also investigated the possible relationship between STAS and the micropapillary histological subtype and its impact on patient prognosis. Methods: A total of 212 patients with LUAD were included in this study from January 2016 to December 2017, and the overall survival (OS) of the patients was compared. The chi-square test and t-test were applied to compare the clinicopathological data of the patients, and the Cox model was used for the multivariate survival analysis. Results: Of the 212 patients, 93 (43.9%) were STAS positive. The univariate analysis showed that the surgical approach, LND type, micropapillary pattern (MP), solid pattern, and STAS were risk factors for OS. The multivariate analysis showed that the surgical approach, MP, and STAS were risk factors for OS. The STAS-positive patients who underwent lobectomy had a better prognosis than those who underwent sublobar resection; however, there was no significant difference between the two surgical procedures in the STAS-negative group. Additionally, the STAS-positive patients who underwent systematic lymph node dissection (SLND) had a better prognosis than those who underwent limited lymph node dissection (LLND); however, there was no significant difference between the two LNDs in the STAS-negative group. Conclusions: STAS plays an important role in patient prognosis and is an independent risk factor for OS of patients with ≤2 cm stage IA LUAD. When STAS is positive, the choice of lobectomy with SLND may result in a better long-term prognosis for patients.

13.
Mar Drugs ; 22(5)2024 May 18.
Article in English | MEDLINE | ID: mdl-38786621

ABSTRACT

Alginate oligosaccharides (AOS), products of alginate degradation by endotype alginate lyases, possess favorable biological activities and have broad applications. Although many have been reported, alginate lyases with homogeneous AOS products and secretory production by an engineered host are scarce. Herein, the alginate lyase AlyC7 from Vibrio sp. C42 was characterized as a trisaccharide-producing lyase exhibiting high activity and broad substrate specificity. With PelB as the signal peptide and 500 mM glycine as the additive, the extracellular production of AlyC7 in Escherichia coli reached 1122.8 U/mL after 27 h cultivation in Luria-Bertani medium. The yield of trisaccharides from sodium alginate degradation by the produced AlyC7 reached 758.6 mg/g, with a purity of 85.1%. The prepared AOS at 20 µg/mL increased the root length of lettuce, tomato, wheat, and maize by 27.5%, 25.7%, 9.7%, and 11.1%, respectively. This study establishes a robust foundation for the industrial and agricultural applications of AlyC7.


Subject(s)
Escherichia coli , Polysaccharide-Lyases , Trisaccharides , Vibrio , Polysaccharide-Lyases/metabolism , Trisaccharides/biosynthesis , Vibrio/enzymology , Substrate Specificity , Alginates , Zea mays , Oligosaccharides
14.
Insects ; 15(5)2024 Apr 24.
Article in English | MEDLINE | ID: mdl-38786859

ABSTRACT

Insects constitute the largest proportion of animals on Earth and act as significant reservoirs and vectors in disease transmission. Rice thrips (Haplothrips aculeatus, family Phlaeothripidae) are one of the most common pests in agriculture. In this study, the full genome sequence of a novel Ollusvirus, provisionally named "Rice thrips ollusvirus 1" (RTOV1), was elucidated using transcriptome sequencing and the rapid amplification of cDNA ends (RACE). A homology search and phylogenetic tree analysis revealed that the newly identified virus is a member of the family Aliusviridae (order Jingchuvirales). The genome of RTOV1 contains four predicted open reading frames (ORFs), including a polymerase protein (L, 7590 nt), a glycoprotein (G, 4206 nt), a nucleocapsid protein (N, 2415 nt) and a small protein of unknown function (291 nt). All of the ORFs are encoded by the complementary genome, suggesting that the virus is a negative-stranded RNA virus. Phylogenetic analysis using polymerase sequences suggested that RTOV1 was closely related to ollusvirus 1. Deep small RNA sequencing analysis reveals a significant accumulation of small RNAs derived from RTOV1, indicating that the virus replicated in the insect. According to our understanding, this is the first report of an Ollusvirus identified in a member of the insect family Phlaeothripidae. The characterisation and discovery of RTOV1 is a significant contribution to the understanding of Ollusvirus diversity in insects.

15.
Plant Dis ; 2024 May 02.
Article in English | MEDLINE | ID: mdl-38698520

ABSTRACT

Root rot caused by Fusarium spp. is a destructive disease affecting agricultural regions worldwide. Strawberries (Fragaria × ananassa Duch.) are an economically important crop in China. In March 2023, root rot was observed in strawberries grown in Jinan, Shandong Province, China. Symptoms included leaf wilt, necrotic roots, and plant death (Figure 1). Four strawberry samples (two symptomatic and two asymptomatic) were collected from ~2-acre fields where the disease incidence rate ranged from 2 to 3%. Tissue pieces (5 mm × 5 mm × 5 mm) from two healthy and two diseased strawberry root tissues were surface-disinfected with 75% ethanol for 3 min, treated with 10% sodium hypochlorite for 5 min, and washed three times with sterile water. These pieces were cultured for 5 days at 28°C on potato dextrose agar (PDA) containing 200 mg/L timentin. Typical Fusarium spp. like growth was observed on plates with the two symptomatic samples. Two representative fungal isolates (CM1 and CM2) with similar morphological characteristics were purified using the single-spore method (Figure 1). CM1 showed an average growth rate of 5 mm/d in PDA and comprised of several white-to-cream aerial mycelia after 5 d. After cultivation in carnation leaf agar medium for 7 d, falciform macroconidia, with blunt apical cells and slightly hooked basal cells comprising 3 to 4 septa of varying sizes (20 to 39)×(3.6 to 6.7 µm) were observed (n=50) (Figure 1). The chlamydospores were spherical, terminal or intercalary, solitary or chain-forming, and 3.1-10.5 µm in diameter (Figure 1). The microconidia on PDA were (5.8 to 13.6)× (2.5 to 3.3) µm in size (n=50). These morphological characteristics are consistent with previous descriptions of the Fusarium solani species complex (FSSC). DNA was extracted using the CTAB method (Stenglein and Balatti 2006). The internal transcribed spacer (ITS), translation elongation factor 1-α gene (tef1), RNA polymerase II largest subunit (rpb1), and RNA polymerase II second largest subunit (rpb2) were amplified and sequenced using specific primers (O'Donnell et al. 2010). The ITS (OR526528, OR526529), tef1 (OR536947, OR536948), rpb1 (OR536949, OR536950), and rpb2 (OR536951, OR536952) sequences of the CM1 and CM2 isolates were uploaded to the NCBI database. BLASTn analysis revealed that the ITS, tef1, rpb1, and rpb2 sequences were 99.1-100% identical to those of the Fusarium falciforme reference strains NRRL 54989 and NRRL 54978. A phylogenetic tree based on the ITS, tef1, rpb1, and rpb2 sequences was generated using MEGA v.11 via the maximum-likelihood method (Tamura et al. 2021). CM1 clustered with the Fusarium falciforme reference strains NRRL 54989 and NRRL 54978 and belonged to the FSSC based on its morphological and molecular characteristics (Figure 2). To test for pathogenicity, the roots of nine 3-month-old healthy strawberry (cv. Akihime) plants were exposed to conidial suspensions (1×108 spores/mL) of the CM1 isolate. Another nine root samples were treated with sterile water and used as controls. All strawberry plants were maintained in a growth chamber under a 12/12 h light/dark cycle at 28°C and 90% relative humidity and the experiment was repeated three times. After one month, the inoculated plants had withered and died, and the pith became dark red (similar to field plants) (Figure 1). The fungi isolated from the experimental plants were confirmed as F. falciforme using morphological and sequence analyses. F. falciforme causes root rot in several species including Nicotiana tabacum (Qiu et al. 2023) and Weigela florida (Shen et al. 2020); however, this study is the first to report root rot caused by F. falciforme in strawberries in China. Overall, F. falciforme infection poses a threat to strawberry production and breeding.

16.
Clin Nutr ; 43(6): 1544-1550, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38754306

ABSTRACT

Few prospective studies have investigated the joint effect of lifestyle factors and genetic susceptibility on the risk of irritable bowel syndrome (IBS). This study aims to evaluate the associations of lifestyle and genetic factors with incident IBS in the UK Biobank. We analyzed data from 481,057 participants (54% female) without prevalent IBS at enrollment in the UK Biobank. An overall healthy lifestyle was defined using six modifiable lifestyle factors, including smoking, body mass index (BMI), sleep duration, diet, physical activity, and alcohol consumption, and hence categorized into 'favorable', 'intermediate', and 'unfavorable' lifestyles. A Cox proportional hazard model was used to investigate the association between a healthy lifestyle and incident IBS. Furthermore, we constructed a polygenic risk score (PRS) for IBS and assessed whether lifestyle modified the effect of genetics on the development of IBS. During a median follow-up of 12.1 years, 8645 incident IBS were ascertained. Specifically, among the six modifiable lifestyle factors, adequate sleep demonstrates the greatest protective effect (hazard ratio [HR]: 0.72, 95% CI: 0.69,0.75) against IBS. Compared with a favorable lifestyle, an unfavorable lifestyle was associated with a 56% (95% CI: 46%-67%) increased risk of IBS (P = 8.99 × 10-40). The risk of incident IBS was 12% (95% CI: 4%-21%) higher among those at high genetic risk compared with those at low genetic risk (P = 0.005). When considering the joint effect of lifestyle and genetic susceptibility, the HR nearly doubled among individuals with high genetic risk and unfavorable lifestyle (HR: 1.80; 95% CI:1.51-2.15; P = 3.50 × 10-11) compared to those with low genetic risk and favorable lifestyle. No multiplicative or addictive interaction was observed between lifestyle and genetics. The findings from this study indicated that lifestyle and genetic factors were independently associated with the risk of incident IBS. All these results implicated a possible clinical strategy of lowering the incidence of IBS by advocating a healthy lifestyle.


Subject(s)
Genetic Predisposition to Disease , Irritable Bowel Syndrome , Life Style , Humans , Irritable Bowel Syndrome/genetics , Irritable Bowel Syndrome/epidemiology , Female , Male , Prospective Studies , Middle Aged , Incidence , United Kingdom/epidemiology , Risk Factors , Adult , Proportional Hazards Models , Aged , Sleep/genetics , Healthy Lifestyle , Diet/statistics & numerical data
17.
J Rheumatol ; 2024 Jun 15.
Article in English | MEDLINE | ID: mdl-38749557

ABSTRACT

OBJECTIVE: Although previous studies have explored the association of drinking with gout risk, we sought to explore the dose-response relationship and the evidence between subtypes of alcoholic beverages and gout risk. METHODS: The weekly alcoholic beverage consumption of patients in the UK Biobank was collected and calculated. The Cox regression model was applied to assess the effects of drinking alcohol in general and its subtypes on gout risk by calculating the hazard ratio (HR) and 95% CIs. Additionally, the restricted cubic splines were used to estimate the dose-response relationship between alcohol consumption and gout risk. To evaluate the robustness, we performed subgroup analysis across various demographic characteristics. RESULTS: During a mean follow-up period of 11.7 years, a total of 5728 new incident gout cases were diagnosed among 331,865 participants. We found that light alcohol consumption was linked to a slight decrease in gout incidence among female individuals (HR 0.78, 95% CI 0.65-0.94, P = 0.01), whereas there was no significant association in male individuals. Moreover, the dose-response relationship showed that drinking light red wine and fortified wine could reduce the gout risk, whereas beer or cider, champagne or white wine, and spirits increased the gout risk at any dose. CONCLUSION: Our study suggested a J-shaped dose-response relationship between drinking and gout risk in female individuals, but not in male individuals. For specific alcoholic beverages, light consumption of red wine and fortified wine was associated with reduced gout risk. These findings offer new insights into the roles of alcoholic beverages in gout incidence risk, although further validation is warranted.

18.
BMC Plant Biol ; 24(1): 292, 2024 Apr 17.
Article in English | MEDLINE | ID: mdl-38632554

ABSTRACT

Spike length (SL) is one of the most important agronomic traits affecting yield potential and stability in wheat. In this study, a major stable quantitative trait locus (QTL) for SL, i.e., qSl-2B, was detected in multiple environments in a recombinant inbred line (RIL) mapping population, KJ-RILs, derived from a cross between Kenong 9204 (KN9204) and Jing 411 (J411). The qSl-2B QTL was mapped to the 60.06-73.06 Mb region on chromosome 2B and could be identified in multiple mapping populations. An InDel molecular marker in the target region was developed based on a sequence analysis of the two parents. To further clarify the breeding use potential of qSl-2B, we analyzed its genetic effects and breeding selection effect using both the KJ-RIL population and a natural mapping population, which consisted of 316 breeding varieties/advanced lines. The results showed that the qSl-2B alleles from KN9204 showed inconsistent genetic effects on SL in the two mapping populations. Moreover, in the KJ-RILs population, the additive effects analysis of qSl-2B showed that additive effect was higher when both qSl-2D and qSl-5A harbor negative alleles under LN and HN. In China, a moderate selection utilization rate for qSl-2B was found in the Huanghuai winter wheat area and the selective utilization rate for qSl-2B continues to increase. The above findings provided a foundation for the genetic improvement of wheat SL in the future via molecular breeding strategies.


Subject(s)
Quantitative Trait Loci , Triticum , Chromosome Mapping , Triticum/genetics , Genetic Linkage , Plant Breeding , Phenotype
19.
Semin Arthritis Rheum ; 66: 152445, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38579592

ABSTRACT

BACKGROUND: Limited research has been conducted on the association between long-term exposure to air pollutants and the incidence of gout. OBJECTIVES: This study aims to assess the individual and combined effects of prolonged exposure to five air pollutants (NO2, NOx, PM10, PMcoarse and PM2.52) on the incidence of gout among 458,884 initially gout-free participants enrolled in the UK Biobank. METHODS: Employing a land use regression model, we utilized an estimation method to ascertain the annual concentrations of the five air pollutants. Subsequently, we devised a weighted air pollution score to facilitate a comprehensive evaluation of exposure. The Cox proportional hazards model was utilized to investigate the association between ambient air pollution and gout risk. Interaction and stratification analyses were conducted to evaluate age, sex, BMI, and genetic predisposition as potential effect modifiers in the air pollution-gout relationship. Furthermore, mediation analyses were conducted to explore the potential involvement of biomarkers in mediating the association between air pollution and gout. RESULTS: Over a median follow-up time of 12.0 years, 7,927 cases of gout were diagnosed. Significant associations were observed between the risk of gout and a per IQR increase in NO2 (HR3: 1.05, 95 % CI4: 1.02-1.08, p = 0.003), NOx (HR: 1.04, 95 % CI: 1.01-1.06, p = 0.003), and PM2.5 (HR: 1.03, 95 % CI: 1.00-1.06, p = 0.030). Per IQR increase in the air pollution score was associated with an elevated risk of gout (p = 0.005). Stratified analysis revealed a significant correlation between the air pollution score and gout risk in participants ≥60 years (HR: 1.05, 95 % CI: 1.02-1.09, p = 0.005), but not in those <60 years (p = 0.793), indicating a significant interaction effect with age (p-interaction=0.009). Mediation analyses identified five serum biomarkers (SUA:15.87 %, VITD: 5.04 %, LDLD: 3.34 %, GGT: 1.90 %, AST: 1.56 %5) with potential mediation effects on this association. CONCLUSIONS: Long-term exposure to air pollutants, particularly among the elderly population, is associated with an increased risk of gout. The underlying mechanisms of these associations may involve the participation of five serum biomarkers.


Subject(s)
Air Pollutants , Air Pollution , Gout , Humans , Gout/epidemiology , Gout/genetics , Male , Female , Middle Aged , United Kingdom/epidemiology , Prospective Studies , Incidence , Air Pollutants/adverse effects , Aged , Air Pollution/adverse effects , Environmental Exposure/adverse effects , Genetic Predisposition to Disease , Adult , Biological Specimen Banks , Risk Factors , Particulate Matter/adverse effects , UK Biobank
20.
Plants (Basel) ; 13(8)2024 Apr 09.
Article in English | MEDLINE | ID: mdl-38674467

ABSTRACT

SPL (SQUAMOSA promoter binding protein-like), as one family of plant transcription factors, plays an important function in plant growth and development and in response to environmental stresses. Despite SPL gene families having been identified in various plant species, the understanding of this gene family in peanuts remains insufficient. In this study, thirty-eight genes (AhSPL1-AhSPL38) were identified and classified into seven groups based on a phylogenetic analysis. In addition, a thorough analysis indicated that the AhSPL genes experienced segmental duplications. The analysis of the gene structure and protein motif patterns revealed similarities in the structure of exons and introns, as well as the organization of the motifs within the same group, thereby providing additional support to the conclusions drawn from the phylogenetic analysis. The analysis of the regulatory elements and RNA-seq data suggested that the AhSPL genes might be widely involved in peanut growth and development, as well as in response to environmental stresses. Furthermore, the expression of some AhSPL genes, including AhSPL5, AhSPL16, AhSPL25, and AhSPL36, were induced by drought and salt stresses. Notably, the expression of the AhSPL genes might potentially be regulated by regulatory factors with distinct functionalities, such as transcription factors ERF, WRKY, MYB, and Dof, and microRNAs, like ahy-miR156. Notably, the overexpression of AhSPL5 can enhance salt tolerance in transgenic Arabidopsis by enhancing its ROS-scavenging capability and positively regulating the expression of stress-responsive genes. These results provide insight into the evolutionary origin of plant SPL genes and how they enhance plant tolerance to salt stress.

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