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2.
RSC Adv ; 14(18): 12574-12579, 2024 Apr 16.
Article En | MEDLINE | ID: mdl-38638819

A KOH mediated mild, efficient, convenient and gram-scalable protocol for the acetylation of alcohols with EtOAc as acetyl source and solvent. Various types of alcohols were successfully transformed into according acetylated products. Good to excellent yields were offered by primary alcohols and low to moderate yields were offered by secondary alcohols.

3.
Biochem Genet ; 2024 Apr 06.
Article En | MEDLINE | ID: mdl-38581475

Spinal muscular atrophy (SMA) is a neuromuscular disorder with an autosomal recessive inheritance pattern. Patients with severe symptoms may suffer respiratory failure, leading to death. The homozygous deletion of exon 7 in the SMN1 gene accounts for nearly 95% of all cases. Population carrier screening for SMA and prenatal diagnosis by amniocentesis for high-risk couples can assist in identifying the risk of fetal disease. We provided the SMA carrier screening process to 55,447 pregnant women in Yancheng from October 2020 to December 2022. Among them, 8185 participated in this process, with a participation rate of around 14.76% (95% CI 14.47-15.06%). Quantitative real-time polymerase chain reaction (qPCR) was used to detect deletions of SMN1 exons 7 and 8 (E7, E8) in screened pregnant women. 127 were identified as carriers (111 cases of E7 and E8 heterozygous deletions, 15 cases of E7 heterozygous deletions, and 1 case of E7 heterozygous deletions and E8 homozygous deletions), resulting in a carrying rate of around 1.55% (95% CI 1.30-1.84%). After genetic counseling, 114 spouses of pregnant women who tested positive underwent SMA carrier screening; three of them were screened as SMA carriers. Multiplexed ligation-dependent probe amplification (MLPA) was used for the prenatal diagnosis of the fetuses of high-risk couples. Two of them exhibited two copies of SMN1 exon 7 (normal), and the pregnancy was continued; one exhibited no copies of SMN1 exon 7 and exon 8 (SMA patient), and the pregnancy was terminated. Analyzing SMN1 mutations in Yancheng and provide clinical evidence for SMA genetic counseling and birth defect prevention. Interventional prenatal diagnosis for high-risk families can promote informed reproductive selection and prepare for the fetus's early treatment.

4.
Medicine (Baltimore) ; 103(11): e37456, 2024 Mar 15.
Article En | MEDLINE | ID: mdl-38489722

RATIONALE: A rare and intractable case of apathetic Graves' disease (GD) with severe liver and kidney damage induced by coronavirus disease 2019 (COVID-19) carries a certain risk of missing diagnosis and delayed treatment during the COVID-19 pandemic. PATIENT CONCERN: A 60-year-old female patient developed anorexia, exhaustion, jaundice, nausea, and vomiting 10 days after COVID-19 infection. She was admitted to the Infectious Diseases Department because of recurring symptoms for more than a month. DIAGNOSIS: Based on the patient's epidemiological history, clinical symptoms, and prior history, she was preliminarily diagnosed with GD induced by COVID-19 with severe hyperthyroid-related liver injury and chronic kidney disease stage 4. Drug-induced and radiation-induced liver injuries occurred sequentially throughout the therapy. INTERVENTION: Methimazole (MMI) (10 mg/d) was administered for 1 week, and the patient's symptoms, thyroid function, and liver and kidney function improved. Nevertheless, the aforementioned symptoms and liver and kidney function deteriorated 20 days after increasing the MMI dose (20 mg/d). Therefore, in the presence of an artificial liver, hemodialysis, and other medical conditions, the treatment schedule was adjusted to individualized 131I anti-hyperthyroidism therapy. OUTCOME: After 131I treatment, the patient's liver function returned to almost normal levels after a month, but worsened when the hepatoprotective drugs were stopped. Renal function did not deteriorate significantly and returned to baseline after 3 months. Thyroid function was restored to normal approximately 4 months later. CONCLUSION: COVID-19 may induce GD. Multidisciplinary collaboration can be initiated as early as possible. Individualized 131I therapy or long-term low-dose MMI (10 mg/d) can be considered to manage hyperthyroidism in GD patients with liver and kidney dysfunction and to prolong liver protection therapy appropriately.


COVID-19 , Graves Disease , Hyperthyroidism , Female , Humans , Middle Aged , Iodine Radioisotopes/therapeutic use , Pandemics , COVID-19/complications , Graves Disease/drug therapy , Hyperthyroidism/drug therapy , Methimazole/therapeutic use , Antithyroid Agents/therapeutic use , Liver
5.
Chem Commun (Camb) ; 59(94): 14025-14028, 2023 Nov 23.
Article En | MEDLINE | ID: mdl-37947054

Two novel near-infrared (NIR) fluorescent probes Cy-Vis1 and Cy-Vis2 with large Stokes shifts (>100 nm) were constructed using a "symmetry collapse" strategy. Notably, Cy-Vis2 was significantly more sensitive to viscosity than Cy-Vis1 through an enhanced intramolecular interaction strategy. The fluorescence intensities of Cy-Vis1 and Cy-Vis2 exhibited increases, by 7.6- and 19.9-fold, respectively, across the viscosity range from 0.8 cp to 359.9 cp. Cy-Vis2 was successfully used to visualize viscosity abnormalities in lipopolysaccharide (LPS)-induced inflammatory and NASH model mice.


Non-alcoholic Fatty Liver Disease , Mice , Animals , Non-alcoholic Fatty Liver Disease/diagnostic imaging , Viscosity , Fluorescent Dyes , Microscopy, Fluorescence/methods , Optical Imaging/methods
6.
Dev Neuropsychol ; 48(6): 259-279, 2023 08 18.
Article En | MEDLINE | ID: mdl-37357939

The present study examined the event-related potentials (ERPs) and reading-language skills of elementary school children with and without reading difficulties. Typically developing children showed an N400 effect characterized by significantly larger N400 amplitudes elicited by nonwords than real words. Their meaning processing shown by the N400 systematically differed by lexicality. On the other hand, the N400 effect was absent in children with reading difficultiesExploratory analyses were conducted with the N1 and Late Positive Component. Additionally, the relationships between ERPs and reading-language skills were examined; sight word efficiency and phonemic decoding efficiency accounted for significant variance in the N400 effect.


Dyslexia , Evoked Potentials , Humans , Male , Child , Female , Evoked Potentials/physiology , Electroencephalography , Language , Cognition , Reading , Dyslexia/diagnosis , Semantics
7.
Anal Chim Acta ; 1252: 341010, 2023 Apr 29.
Article En | MEDLINE | ID: mdl-36935161

Herein, a novel dual-signal sensing system for the determination of ß-galactosidase (ß-Gal) activity was established, which was based on a dual-emission probe assembled from gold-platinum bimetallic nanoclusters (Au-Pt NCs) and rhodamine B. Under the catalysis of ß-Gal, 4-nitrophenyl ß-D-galactopyranoside (PNPG) was rapidly hydrolyzed to generate p-nitrophenol (PNP), which has an obvious UV absorption peak at 400 nm. The hydrolyzed product PNP can quench the fluorescence of Au-Pt NCs effectively by inner filter effect (IFE), and PNP had no impact on the fluorescence of rhodamine B, which will change the emission intensity ratio of Au-Pt NCs and rhodamine B. Therefore, the ratiometric fluorescent and colorimetric dual-signal sensor based on Au-Pt NCs and rhodamine B was successfully constructed for sensitive detection of ß-Gal activity. The linear detection range for the ratiometric fluorescence and colorimetric methods were 2.5-25 U/L and 15-55 U/L with detection limits of 1.2 U/L and 5.2 U/L, respectively. The developed assay method has been used for quantitative detection of ß-Gal in spiked serum samples and showed good performance. And the detection platform has high reliability and excellent selectivity, which opens a new avenue for the further application of Au-Pt NCs in chemical sensing and biological analysis.


Metal Nanoparticles , Platinum , Spectrometry, Fluorescence/methods , Gold , Colorimetry , Reproducibility of Results , Limit of Detection
8.
Talanta ; 254: 124148, 2023 Mar 01.
Article En | MEDLINE | ID: mdl-36463805

Herein, we have synthesized a novel kind of gold nanoclusters decorated iron-cobalt oxide nanosheets (His-AuNCs@FeCo-ONSs) assembled by electrostatic interaction, which possessed both outstanding peroxidase-like activity and fluorescence property. Taking advantage of our bifunctional hybrid nanozyme and enzyme cascade reactions, a sensitive dual-mode (colorimetric/fluorescent) detection method for α-glucosidase was constructed. The detection limits for α-glucosidase were 2.2 U/L and 3.3 U/L in fluorometric and colorimetric mode, respectively. This method not only provides high sensitivity, but also can correct itself to improve the accuracy of analysis due to the dual-response signals. Furthermore, it was employed for α-glucosidase determination in real samples and screening of α-glucosidase inhibitors.


Biosensing Techniques , alpha-Glucosidases , Peroxidase , Iron , Gold , Peroxidases , Oxidoreductases , Coloring Agents , Colorimetry/methods
9.
Plant Biotechnol J ; 21(2): 354-368, 2023 02.
Article En | MEDLINE | ID: mdl-36326663

Wheat stripe rust caused by the fungus Puccinia striiformis f. sp. tritici (Pst) is one of the most destructive wheat diseases resulting in significant losses to wheat production worldwide. The development of disease-resistant varieties is the most economical and effective measure to control diseases. Altering the susceptibility genes that promote pathogen compatibility via CRISPR/Cas9-mediated gene editing technology has become a new strategy for developing disease-resistant wheat varieties. Calcineurin B-like protein (CBL)-interacting protein kinases (CIPKs) has been demonstrated to be involved in defence responses during plant-pathogen interactions. However, whether wheat CIPK functions as susceptibility factor is still unclear. Here, we isolated a CIPK homoeologue gene TaCIPK14 from wheat. Knockdown of TaCIPK14 significantly increased wheat resistance to Pst, whereas overexpression of TaCIPK14 resulted in enhanced wheat susceptibility to Pst by decreasing different aspects of the defence response, including accumulation of ROS and expression of pathogenesis-relative genes. We generated wheat Tacipk14 mutant plants by simultaneous modification of the three homoeologues of wheat TaCIPK14 via CRISPR/Cas9 technology. The Tacipk14 mutant lines expressed race-nonspecific (RNS) broad-spectrum resistance (BSR) to Pst. Moreover, no significant difference was found in agronomic yield traits between Tacipk14 mutant plants and Fielder control plants under greenhouse and field conditions. These results demonstrate that TaCIPK14 acts as an important susceptibility factor in wheat response to Pst, and knockout of TaCIPK14 represents a powerful strategy for generating new disease-resistant wheat varieties with BSR to Pst.


Basidiomycota , Triticum , Triticum/metabolism , Plant Diseases/genetics , Plant Diseases/microbiology , Basidiomycota/metabolism
10.
Front Microbiol ; 13: 920780, 2022.
Article En | MEDLINE | ID: mdl-36003930

Important forensic evidence traced from crime scenes, such as fecal materials, can help in the forensic investigation of criminal cases. Intestines are the largest microbial pool in the human body whose microbial community is considered to be the human "second fingerprint". The present study explored the potential for community characteristics of gut microbes in forensic medicine. Fecal microbiota profiles of healthy individuals from three representative Han populations (Guangzhou, Shantou and Meizhou) in Guangdong Province, China were evaluated using High-throughput sequencing of V3-V4 hypervariable regions of the 16SrRNA gene. Results of the present study showed that at the genus level, Shantou, Guangzhou, and Meizhou behaved as Enterotype1, Enterotype2, and Enterotype3, which were mainly composed of Bacteroides, Prevotella, and Blautia, respectively. Based on OTU abundance at the genus level, using the random forest prediction model, it was found that there might be potential for distinguishing individuals of Guangzhou, Meizhou, and Shantou according to their fecal microbial community. Moreover, the findings of the microbial community of fecal samples in the present study were significantly different from that of saliva samples reported in our previous study, and thus it is evident that the saliva and feces can be distinguished. In conclusion, this study reported the fecal microbial signature of three Han populations, which may provide basic data for the potential application in forensic practice, containing body fluid identification, and geographical inference.

11.
J Biol Chem ; 298(10): 102429, 2022 10.
Article En | MEDLINE | ID: mdl-36037970

Stroke can lead to severe nerve injury and debilitation, resulting in considerable social and economic burdens. Due to the high complexity of post-injury repair mechanisms, drugs approved for use in stroke are extremely scarce, and thus, the discovery of new antistroke drugs and targets is critical. Tryptophan hydroxylase 1 (TPH1) is involved in a variety of mental and neurobehavioral processes, but its effects on stroke have not yet been reported. Here, we used primary astrocyte culture, quantitative real-time PCR, double immunofluorescence assay, lentiviral infection, cell viability analysis, Western blotting, and other biochemical experiments to explore the protective mechanism of peptide OM-LV20, which previously exhibited neuroprotective effects in rats after ischemic stroke via a mechanism that may involve TPH1. First, we showed that TPH1 was expressed in rat astrocytes. Next, we determined that OM-LV20 impacted expression changes of TPH1 in CTX-TNA2 cells and exhibited a protective effect on the decrease in cell viability and catalase (CAT) levels induced by hydrogen peroxide. Importantly, we also found that TPH1 expression induced by OM-LV20 may be related to the level of change in the pituitary adenylate cyclase-activating peptide type 1 receptor (PAC1R) and to the JNK signaling pathways, thereby exerting a protective effect on astrocytes against oxidative stress. The protective effects of OM-LV20 likely occur via the 'PAC1R/JNK/TPH1' axis, thus highlighting TPH1 as a novel antistroke drug target.


Astrocytes , MAP Kinase Kinase 4 , Oxidative Stress , Peptides , Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide , Stroke , Tryptophan Hydroxylase , Animals , Rats , Astrocytes/drug effects , Astrocytes/metabolism , Oxidative Stress/drug effects , Peptides/pharmacology , Stroke/prevention & control , Tryptophan Hydroxylase/metabolism , Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide/metabolism , MAP Kinase Kinase 4/metabolism
12.
Front Chem ; 10: 933763, 2022.
Article En | MEDLINE | ID: mdl-35844649

The secondary C(OH)-C bonds are abundant in biomass such as lignin and cellulose. Thus, selective cleavage of the C(OH)-C bonds into value chemicals attracted much attention. Molecular iodine has received considerable attention as an inexpensive and readily available catalyst to yield the corresponding products in excellent yields with high selectivity, but it is highly corrosive and toxic, making its use somewhat unattractive. In this study, I2 was generated in situ from Fe(NO3)3.9H2O/NaI, which was further combined with Fe(NO3)3.9H2O to catalyze the oxidation process. In the reaction, the H2O molecule from the reaction and Fe(NO3)3.9H2O attacked the phenylglyoxal to form benzaldehyde, which was further oxidized to benzoic acid. Aryl primary and secondary benzylic alcohols from lignin were successfully transformed into aryl carboxylic acids by Fe(NO3)3.9H2O/NaI/DMSO. The catalytic system was green and efficient, avoiding the usage of toxic and corrosive molecular I2. From the experiments, it was clear that the yield of the product from the substrates with an electron-donating group was higher than that of electron-withdrawing substituted substrates, which was similar to the aryl secondary alcohols. Aryl alkyl ketones were also successfully conducted by the Fe(NO3)3.9H2O/NaI/DMSO catalytic system.

13.
Spectrochim Acta A Mol Biomol Spectrosc ; 279: 121431, 2022 Oct 15.
Article En | MEDLINE | ID: mdl-35653812

Herein, a ratiometric fluorescent nanoprobe was strategically fabricated using pH-sensitive azamonardine (Aza) as a pH indicator and pH-insensitive AIZS QDs as a reference fluorescence signal for urea activity determination and pH sensing. As the pH changed from 9.7 to 11.7, the resorcinol could react with dopamine to form the cyclization product (Aza), producing a fluorescence signal at 455 nm. Meanwhile, the fluorescence intensity of AIZS QDs at 566 nm remained unchanged. Thus, the ratio of the fluorescence intensity (F455/F566) was able to quantify pH value. Our designed pH-sensing platform showed a linear respond to pH values in the range of 9.7 to 11.7 at intervals of 0.2. In addition, the hydrolysis of urea by urease caused an increase of the system pH value, which can be used to measure the concentration of urea. The developed method for urea determination exhibited a good linear relationship from 0.02 to 20 mM and the limit of detection was 0.0103 mM. Moreover, the practical application was confirmed by urea analysis in real water sample with high feasibility and accuracy, indicating the great application prospects of this sensing platform for urea activity analysis.


Quantum Dots , Fluorescence , Fluorescent Dyes , Hydrogen-Ion Concentration , Spectrometry, Fluorescence/methods , Urea
14.
Front Psychol ; 13: 856663, 2022.
Article En | MEDLINE | ID: mdl-35769737

With the advent and integration of technology in business, marketers started investing in numerous media platforms to influence the consumer's sentiments. Artificial intelligence has been proved as one of the innovative tools of digitalization to change consumer's media habits. Owing to the growing trends of e-commerce, the traditional advertising model is insufficient. Therefore, advertisers are taking advantage of artificial intelligence technology to meet current requirements. Thus, a deeper understanding of product advertisement with reference to consumer sentiments and its implications need to be established. The current research depicts the contribution of artificial intelligence to analyze the consumers' attention, cognition, and emotion. The target product was Samsung Galaxy. Researcher of the current study has employed Think-aloud procedure for data analysis. Tweets dataset was divided into 2 categories. For international consumers' sentiments 30,877 tweets whereas for Pakistani consumers' sentiments tweets dataset was 26,834. For data analysis, authors used Nvivo for generating theme. The Nvivo produced word cloud. The word cloud generated with Pakistani tweets revealed that consumer attachment with Samsung product is based on emotional and attention and the preferred features of Samsung products are linked with emotional and attention. In contrary to that rest of the world tweets unfolded that emotion, attention, and cognition make consumer preferences while selecting Samsung products. This study is useful to the cellular companies for targeting across the world population. The consumer preference varies while selecting cell phones. This study will provide a better idea to cell phone companies for manufacturing consumer oriented cell phones to get better results. Moreover, future research should add more countries separate data and generate a comparative study between developed countries consumer and developing countries consumer preferences. In addition to companies with better insights of consumer can highlight the most attractive features of cell phone in their advertisements.

15.
Oxid Med Cell Longev ; 2022: 9102978, 2022.
Article En | MEDLINE | ID: mdl-35698607

Ischemia-reperfusion injury (IRI) is closely associated the abnormal expression of long noncoding RNAs (lncRNAs), especially for their regulatory roles in IRI-related angiogenesis. This study applied a hypoxia-reoxygenation (HR) cell model to simulate the IRI condition, as well as RNA sequencing and RNA pull-down experiments to reveal roles of the lncRNA and Stem Cell Inhibitory RNA Transcript (SCIRT), in endothelial angiogenesis. We found that SCIRT was increased under the HR condition and exhibited a high expression correlation with angiogenesis marker VEGFA. RNA-seq data analysis further revealed that VEGFA-related angiogenesis was regulated by SCIRT in HUVECs. Gain and loss of function experiments proved that SCIRT posttranscriptionally regulated VEGFA via affecting its mRNA stability. Furthermore, HuR (ELAVL1), an RNA binding protein (RBP), was identified as a SCIRT-binding partner, which bound and stabilized VEGFA. Moreover, SCIRT promoted HuR expression posttranslationally by inhibiting its ubiquitination under the HR condition. These findings reveal that lncRNA SCIRT can mediate endothelial angiogenesis by stabilizing the VEGFA mRNA via modulating RBP HuR stability under the HR condition.


Cell Hypoxia , Neovascularization, Pathologic , RNA, Long Noncoding , Vascular Endothelial Growth Factor A , Cell Proliferation/genetics , Human Umbilical Vein Endothelial Cells , Humans , RNA, Long Noncoding/genetics , RNA, Messenger/genetics , Vascular Endothelial Growth Factor A/genetics , Vascular Endothelial Growth Factor A/metabolism
16.
Heliyon ; 8(3): e09033, 2022 Mar.
Article En | MEDLINE | ID: mdl-35284678

The emergence of 5-Fluorouracil (5-FU) resistance is the barrier to effective clinical outcomes for colorectal cancer (CRC) patients. Autophagy was found to be involved in protecting tumor cells from 5-FU. However, the specific role of autophagy-related genes in CRC 5-FU resistance remains unclear. In this study, HSPB8 among 34 differentially expressed ARGs in CRC was identified to be the hub ARGs in 5-FU resistant which was down-regulated in CRC samples when compared with normal samples but up-regulated in CRC samples with relatively higher lymphatic invasion, later stages and poor prognosis of CRC. Mechanistic analysis demonstrated that due to the recruitment of CAFs, HSPB8 expression was enhanced in CRC cells so that HSPB8 could act together with its co-chaperone BAG3 in autophagy drived 5-FU resistance. Furthermore, the augmented expression level of HSPB8 was found to be significantly correlated to the immune cell infiltration such as Treg cells, macrophages, monocyte and dendritic cells and so on. Our results suggested CAFs driving HSPB8 induced CRC 5-FU resistance by promoting tumor autophagy would provide a new strategy in seeking potential CRC therapeutic target.

17.
Biology (Basel) ; 11(2)2022 Feb 18.
Article En | MEDLINE | ID: mdl-35205191

Fusarium graminearum is the predominant causal agent of cereal Fusarium head blight disease (FHB) worldwide. The application of chemical fungicides such as azole antifungals is still the primary method for FHB control. However, to date, our knowledge of transcriptional regulation in the azole resistance of F. graminearum is quite limited. In this study, we identified and functionally characterized a Zn(II)2-Cys6 transcription factor FgAtrR in F. graminearum. We constructed a FgAtrR deletion mutant and found that deletion of FgAtrR resulted in faster radial growth with serious pigmentation defects, significantly reduced conidial production, and an inability to form perithecia. The pathogenicity of the ΔFgAtrR mutant on wheat spikes and corn silks was severely impaired with reduced deoxynivalenol production, while the tolerance to prochloraz and propiconazole of the deletion mutant was also significantly decreased. RNA-seq indicated that many metabolic pathways were affected by the deletion of FgAtrR. Importantly, FgAtrR could regulate the expression of the FgCYP51A and ABC transporters, which are the main contributors to azole resistance. These results demonstrated that FgAtrR played essential roles in asexual and sexual development, DON production, and pathogenicity, and contributed to intrinsic resistance to azole fungicides in F. graminearum. This study will help us improve the understanding of the azole resistance mechanism in F. graminearum.

18.
Healthcare (Basel) ; 9(8)2021 Aug 19.
Article En | MEDLINE | ID: mdl-34442198

Despite campaigns to increase public awareness of stroke symptoms by advocating FAST (Face-Arms-Speech-Time), some stroke patients still show delays in the recognition of and response to stroke symptoms and miss the golden first 4.5 h to receive rt-PA (recombinant tissue plasminogen activator) treatment. The aim of this study was to explore how acute ischemic stroke patients with prehospital delay seek help and undergo the decision process before arriving at the hospital. A qualitative approach using a grounded theory was applied. There were 24 ischemic stroke patients recruited by purposive sampling. Our main findings were: "Hesitating and puzzling" was the core category to describe and guide the process of acute ischemic stroke patients with prehospital delay. During the process, "Awareness the sudden change of physical sensation and/or function" was the antecedent category. In the prehospital delay experience, the following five interaction categories were identified: (1) "Self-judgment and interpretation according to previous experience," (2) "Puzzling and doubting-it may only be a minor problem," (3) "Self-treatment or seeking medical attention nearby," (4) "Unexpected symptoms getting worse" needing immediate advanced medical help and (5) "Rushing to ER with different transportation-self-alerting that serious disease is coming." Eventually, the patients "Regret to delay seeking treatment and become a disable person." The process of prehospital delay provides some hidden cues for patients to increase their knowledge about strokes. The study emphasizes the importance of educating community residents about identifying stroke symptoms, breaking the myth of folk therapy, and seeking medical attention immediately. These results will assist healthcare providers by offering references for designing patient-centric educational strategies for preventing stroke prehospital delay to improve the quality of stroke medical care.

19.
Medicine (Baltimore) ; 100(12): e25326, 2021 Mar 26.
Article En | MEDLINE | ID: mdl-33761736

ABSTRACT: Single-nucleotide polymorphisms (SNPs) in the transcription factor 7-like 2 (TCF7L2) gene have been identified to be associated with the susceptibility to type 2 diabetes mellitus (T2DM) in various populations worldwide, but the results in Chinese are conflicting, and no data are available about the Liannan Yao population. Therefore, this study aimed to investigate the association of the TCF7L2 gene polymorphisms (rs12255372, rs7903146, rs7901695, rs11196205, and rs7895340) with T2DM in the Yao population living in the rural areas in the Liannan Yao Autonomous County.This was a case-control study of 28 subjects with T2DM or prediabetes and 52 non-T2DM controls, all from the Chinese Yao population and recruited between January 2019 and June 2020. Patients with T2DM and prediabetes were grouped as the case group. The five SNPs (rs12255372, rs7903146, rs7901695, rs11196205, and rs7895340) were examined by polymerase chain reaction and direct genomic DNA sequencing in case and control groups.The subjects in case group were older than the controls (55±14 vs 48 ±â€Š15 years, P = .047), had higher FBG levels (9.31 ±â€Š5.43 vs 4.09 ±â€Š0.81, P < .001), higher TC (5.79 ±â€Š1.29 vs 5.13 ±â€Š1.18 mmol/L, P = .025), and higher triglycerides (2.94 ±â€Š2.04 vs 1.86 ±â€Š1.39 mmol/L, P = .003). The genotypic distribution for each of the SNPs was in agreement with the Hardy-Weinberg equilibrium. There were no statistically significant differences in the distributions of genotypes or alleles at all five SNPs of the TCF7L2 gene between the case and control groups (all P > .05).TCF7L2 SNPs were not associated with T2DM in the Liannan Yao population.


Diabetes Mellitus, Type 2 , Transcription Factor 7-Like 2 Protein/genetics , Blood Glucose/analysis , Case-Control Studies , China/epidemiology , Cholesterol/blood , Correlation of Data , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/diagnosis , Diabetes Mellitus, Type 2/epidemiology , Diabetes Mellitus, Type 2/genetics , Female , Genetic Predisposition to Disease , Humans , Male , Middle Aged , Polymorphism, Single Nucleotide , Triglycerides/blood
20.
BMC Microbiol ; 21(1): 58, 2021 02 22.
Article En | MEDLINE | ID: mdl-33618668

BACKGROUND: A severe form of pneumonia, named coronavirus disease 2019 (COVID-19) by the World Health Organization is widespread on the whole world. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was proved to be the main agent of COVID-19. In the present study, we conducted an in depth analysis of the SARS-COV-2 nucleocapsid to identify potential targets that may allow identification of therapeutic targets. METHODS: The SARS-COV-2 N protein subcellular localization and physicochemical property was analyzed by PSORT II Prediction and ProtParam tool. Then SOPMA tool and swiss-model was applied to analyze the structure of N protein. Next, the biological function was explored by mass spectrometry analysis and flow cytometry. At last, its potential phosphorylation sites were analyzed by NetPhos3.1 Server and PROVEAN PROTEIN. RESULTS: SARS-COV-2 N protein composed of 419 aa, is a 45.6 kDa positively charged unstable hydrophobic protein. It has 91 and 49% similarity to SARS-CoV and MERS-CoV and is predicted to be predominantly a nuclear protein. It mainly contains random coil (55.13%) of which the tertiary structure was further determined with high reliability (95.76%). Cells transfected with SARS-COV-2 N protein usually show a G1/S phase block company with an increased expression of TUBA1C, TUBB6. At last, our analysis of SARS-COV-2 N protein predicted a total number of 12 phosphorylated sites and 9 potential protein kinases which would significantly affect SARS-COV-2 N protein function. CONCLUSION: In this study, we report the physicochemical properties, subcellular localization, and biological function of SARS-COV-2 N protein. The 12 phosphorylated sites and 9 potential protein kinase sites in SARS-COV-2 N protein may serve as promising targets for drug discovery and development for of a recombinant virus vaccine.


COVID-19/virology , Nucleocapsid Proteins/metabolism , SARS-CoV-2/metabolism , SARS-CoV-2/pathogenicity , Amino Acid Sequence , COVID-19/genetics , COVID-19/immunology , Genome, Viral/genetics , HCT116 Cells , Humans , Molecular Sequence Data , Nucleocapsid Proteins/chemistry , Nucleocapsid Proteins/genetics , Phosphorylation , Reproducibility of Results , SARS-CoV-2/genetics , Viral Vaccines/therapeutic use
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