Forever Summer Hydrangea (Hydrangea macrophylla) is a common flowering plant in the Yangtze River Valley area of China, and it is widely cultivated globally (Chen et al. 2015). In July 2023, H.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
October 2023
Some heavy metals are associated with periodontitis; whereas most of these associations have focused on individual metal, there are no specific studies on the effects of combined heavy metal exposure on periodontitis. We conducted an analysis on the association between urinary heavy metal exposure and periodontitis in participants aged 30 years and older using multiple logistic regression and Bayesian kernel machine regression (BKMR). This analysis was performed on data from the National Health and Nutrition Examination Survey from 2011 to 2014.
View Article and Find Full Text PDFBackground: A growing number of studies have shown that prenatal exposure to chemical and non-chemical stressors has effects on fetal growth. The co-exposure of both better reflects real-life exposure patterns. However, no studies have included air pollutants and pregnancy-related anxiety (PrA) as mixtures in the analysis.
View Article and Find Full Text PDFA comparative study was performed to investigate the differences in plasma pharmacokinetics (PKs) and tissue residues of trimethoprim (TMP) between silky fowls and 817 broilers. The 2 breeds of chickens received compound sulfadiazine suspension by gavage at 20 mg/kg (measured as TMP). Blood and tissue samples were collected at predetermined time points.
View Article and Find Full Text PDFBackground: Neuroinflammation after aneurysmal subarachnoid hemorrhage (aSAH) leads to poor outcome of patients. High mobility group box 1 (HMGB1) contributes to inflammation through binding to receptors for advanced glycation end-products (RAGE) in various diseases. We aimed to determine the production of these two factors after aSAH and their relationship with clinical features.
View Article and Find Full Text PDFM1 microglial activation is crucial for the pathogenesis of early brain injury (EBI) following subarachnoid hemorrhage (SAH), and there is growing evidence that glucose metabolism is frequently involved in microglial activation. However, the molecular mechanism of glycolysis and its role in M1 microglial activation in the context of EBI are not yet fully understood. In this study, firstly, the relationship between aerobic glycolysis and M1 microglial activation as well as SAH-induced EBI was researched in vivo.
View Article and Find Full Text PDFObjectives: In this study, we investigated the time course in the cerebrospinal fluid (CSF) advanced oxidation protein products (AOPPs) levels in patients with aneurysmal subarachnoid hemorrhage (aSAH), and ascertained the relationship between the levels of AOPPs and early brain injury (EBI), hydrocephalus and prognosis of patients with aSAH.
Methods: We measured the CSF AOPPs levels in 50 patients with aSAH at 1-3 d, 4-6 d, 7-9 d, and 10-12 d after hemorrhage. The modified Fisher grades, Hunt-Hess grades, CSF IL-6 levels, peripheral blood count of white blood cells, cerebral edema scores and hydrocephalus were used to assess the severity of brain injury.
Objective: This study aims to identify reliable prognostic biomarkers for differentiated thyroid cancer (DTC) based on glycolysis-related genes (GRGs), and to construct a glycolysis-related gene model for predicting the prognosis of DTC patients.
Methods: We retrospectively analyzed the transcriptomic profiles and clinical parameters of 838 thyroid cancer patients from 6 public datasets. Single factor Cox proportional risk regression analysis and Least Absolute Shrinkage and Selection Operator (LASSO) were applied to screen genes related to prognosis based on 2528 GRGs.
Purpose: Marital status has emerged as an important influence on several cancer outcomes, but its role in medullary thyroid cancer (MTC) remains unclear. This study was to explore the effects of marital status on the prognosis of MTC patients and to determine whether its effects vary by age.
Patients And Methods: We retrospectively extracted 1344 eligible patients diagnosed with MTC between 2004 and 2015 from the Surveillance, Epidemiology, and End Results (SEER) database.
Background: Alternative splicing (AS) plays a key role in the diversity of proteins and is closely associated with tumorigenicity. The aim of this study was to systemically analyze RNA alternative splicing (AS) and identify its prognostic value for papillary thyroid cancer (PTC).
Methods: AS percent-splice-in (PSI) data of 430 patients with PTC were downloaded from the TCGA SpliceSeq database.
The health problems caused by the frequent relapse of papillary thyroid carcinoma (PTC) remain a worldwide concern since the morbidity rate of PTC ranks the highest among thyroid cancers. Residues from contralateral central lymph node metastases (con-CLNM) are the key reason for persistence or recurrence of unilateral papillary thyroid carcinoma (uni-PTC); however, the ability to assess the status of con-CLNM in uni-PTC patients is limited. To clarify the risk factors of con-CLNM, a total of 250 patients with uni-PTC who underwent total thyroidectomy and bilateral central lymph node dissection were recruited in this study.
View Article and Find Full Text PDFTriggering receptor expressed on myeloid cells-1 (TREM-1) was found to be induced in the context of subarachnoid hemorrhage (SAH) before. This study further investigates its role in the development of SAH-induced early brain injury (EBI). Firstly, rats were randomly divided into Sham and SAH groups for analysis of temporal patterns and cellular localization of TREM-1.
View Article and Find Full Text PDFJ Cancer Res Clin Oncol
February 2021
The incidence of papillary thyroid cancer (PTC), the major type of thyroid cancer, is increasing rapidly around the world, and its pathogenesis is still unclear. There is poor prognosis for PTC involved in rapidly progressive tumors and resistance to radioiodine therapy. Kinase gene fusions have been discovered to be present in a wide variety of malignant tumors, and an increasing number of novel types have been detected in PTC, especially progressive tumors.
View Article and Find Full Text PDFBackground: Therapeutic lateral neck dissection (LND) is recommended in papillary thyroid carcinoma (PTC) patients with clinically lateral lymph node metastasis (LLNM), whether underwent level V LND remains controversial for lacking of sensitive predicting system. mutation is associated with aggressive tumor behavior, recurrence, and disease-specific mortality of PTC. However, the relationship between mutation and level V LNM is unclear.
View Article and Find Full Text PDFBackground: Cervical lymph node metastasis (LNM) is an independent risk factor for poor prognosis of papillary thyroid carcinoma (PTC), but the scope of PTC lateral neck dissection (LND) is controversial. Solitary lateral lymph node metastasis (SLNM) is a special type of PTC with lateral LNM. Currently, study on the preoperative clinical characteristics of SLNM has been seldomly reported.
View Article and Find Full Text PDFBacillus licheniformis γ-glutamyltranspeptidase (BlGGT) was fused at its C-terminal end with N-terminally truncated forms of Bacillus sp. TS-23 α-amylase. BlGGT and six fusion enzymes, BlGGT/SBD, BlGGT/AMYΔN476, BlGGT/AMYΔN443, BlGGT/AMYΔN376, BlGGT/AMYΔN195, and BlGGT/AMYΔN34, were over-expressed in Escherichia coli M15 cells and purified to apparent homogeneity by metal-affinity chromatography.
View Article and Find Full Text PDFThe NAD(+)-requiring enzymes of the aldehyde dehydrogenase (ALDH) family contain a glycine motif, GX1- 2GXXG, which is reminiscent of the fingerprint region of the Rossman fold, a conserved structural motif of the classical nicotinamide nucleotide-binding proteins. In this research, the role of three glycine residues situated within the putative NAD(+)-binding motif (211-GPGSSAG) together with Gly233 and Gly238 of Bacillus licheniformis ALDH (BlALDH) were probed by site-directed mutatgenesis. Fifteen mutant BlALDHs were obtained by substitution of the indicated glycine residues with alanine, glutamate and arginine.
View Article and Find Full Text PDFA CP1201 RIR1 intein is found in the ribonucleotide reductase alpha subunit (RNR α subunit) protein of lytic bacteriophage P1201 from Corynebacterium glutamicum NCHU 87078. This intein can be over-expressed and spliced in Escherichia coli NovaBlue cells. Mutations of C539, the N-terminal residue of the C-extein in the CP1201 RIR1 protein, led to the changes of pattern and level of protein-splicing activities.
View Article and Find Full Text PDFBiochim Biophys Acta
September 2010
The genome of Corynebacterium glutamicum NCHU 87078 contains two putative thymidylate synthase genes, designated CgthyA and CgthyX. These two genes were expressed in Escherichia coli NovaBlue and the expressed His(6)-tagged enzymes were purified by nickel-chelate chromatography. The purified CgThyA had a specific activity of 414 mU mg(-)(1) protein, whereas thymidylate synthase activity for CgThyX could not be detected in a functional complementation assay using a 10-day incubation period.
View Article and Find Full Text PDFBacillus licheniformis DnaK (BlDnaK) is predicted to consist of a 45-kDa N-terminal ATPase domain and a 25-kDa C-terminal substrate-binding domain. In this study, the full-length BlDnaK and its T86W and three C-terminally truncated mutants were constructed to evaluate the role of up to C-terminal 255 amino acids of the protein. The steady-state ATPase activity for BlDnaK, T86W, T86W/DeltaC120, T86W/DeltaC249, and T86W/DeltaC255 was 65.
View Article and Find Full Text PDFRole of the conserved Thr399 and Thr417 residues of Bacillus licheniformis gamma-glutamyltranspeptidase (BlGGT) was investigated by site-directed mutagenesis. Substitutions of Thr399 and Thr417 of BlGGT with Ser resulted in a dramatic reduction in enzymatic activity. A complete loss of the GGT activity was observed in T399A, T399C, T417A, and T417K mutant enzymes.
View Article and Find Full Text PDFThe full-length Bacillus licheniformis gamma-glutamyltranspeptidase (BlGGT) gene and six truncations lacking 36, 129, 132, 135, 144, and 174 bp, respectively, at the 5' end were prepared by polymerase chain reaction and cloned into the expression vector pQE-30. Isopropyl-beta-D-thiogalactopyranoside induction of Escherichia coli M15 cells bearing the recombinant plasmids resulted in the overexpression of His(6)-tagged proteins BlGGT, BlGGT/DeltaN12, BlGGT/DeltaN43, BlGGT/DeltaN44, BlGGT/DeltaN45, BlGGT/DeltaN48, and BlGGT/DeltaN58. Except for BlGGT/DeltaN58, the overexpressed enzymes could be purified to near-homogeneity by Ni(2+)-NTA resin.
View Article and Find Full Text PDFP1201 is a lytic corynephage of Corynebacterium glutamicum NCHU 87078. Its genome consists of a linear double-stranded DNA molecule of 70,579 base pairs, with 3'-protruding cohesive ends of ten nucleotides. We have identified 69 putative open reading frames, including three apparent genes (thymidylate synthase, terminase, and RNR alpha subunit genes) that are interrupted by an intein.
View Article and Find Full Text PDFJ Formos Med Assoc
November 2007
The ABO blood group system is the most important blood group system in transfusion medicine. In addition to the major A, B and O alleles, many rare alleles with weak expression of the A or B antigens on RBCs have been defined. We report here the molecular analysis of a novel A(el) allele.
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