500 results match your criteria: "Reproductive and Genetic Hospital of CITIC-Xiangya[Affiliation]"

Vitamin D Is Associated with Lipid Metabolism: A Sex- and Age-Dependent Analysis of a Large Outpatient Cohort.

Nutrients

November 2024

Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Center Mannheim, University of Heidelberg, 69120 Mannheim, Germany.

Vitamin D is a fat-soluble steroid that influences cardiovascular health by affecting lipid metabolism. Since dyslipidemia is a key risk factor for cardiovascular disease (CVD), our study aimed to explore the relationship between vitamin D levels and lipid parameters, considering the effects of age and gender. : In this cross-sectional study of 47,778 outpatients, we analyzed correlations between two forms of vitamin D-25-hydroxyvitamin D (25(OH)D) and 1,25-dihydroxyvitamin D (1,25(OH)D)-and lipid parameters, including low-density lipoprotein (LDL), high-density lipoprotein (HDL), and total cholesterol (TC).

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LINC00470 promotes malignant progression of testicular germ cell tumors.

Mol Biol Rep

November 2024

Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Center of Reproductive Medicine, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, Hunan, China.

Article Synopsis
  • * Research methods included expression analysis, GSEA enrichment, and experimental transfection to silence LINC00470 in cancer cell lines, revealing its role in promoting clone formation and metastasis, as well as negatively affecting immune responses.
  • * The findings suggest LINC00470 contributes to the development and spread of TGCT by regulating the epithelial-mesenchymal transition (EMT) and the AKT signaling pathway, while also being linked to decreased sensitivity to cisplatin chemotherapy.
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sGC stimulator (BAY 41-8543) combined with PDE9 inhibitor (BAY 73-6691) reduces renal fibrosis in 5/6 nephrectomized rats.

Basic Clin Pharmacol Toxicol

January 2025

Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Germany.

Renal fibrosis is closely related to the prognosis of chronic kidney disease (CKD). The increase in cGMP reduces renal fibrosis. Soluble guanylate cyclase (sGC) and phosphodiesterase (PDE) are key enzymes that maintain cGMP levels.

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Comparison of sGC activator and sGC stimulator in 5/6 nephrectomized rats on high-salt-diet.

Front Pharmacol

October 2024

Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany.

Article Synopsis
  • Soluble guanylate cyclase (sGC) stimulators and activators potentially improve kidney function in chronic kidney disease (CKD) models by boosting levels of cyclic guanosine monophosphate (cGMP), but their effects during oxidative stress hadn't been compared previously.
  • A study compared the effects of two compounds, BAY 41-8543 (an sGC stimulator) and BAY 60-2770 (an sGC activator), on CKD progression in rats with significant kidney damage on a high salt diet over 11 weeks.
  • While both compounds lowered blood pressure, only BAY 60-2770 effectively reduced kidney fibrosis and improved outcomes related to proteins tied to fibrosis and apoptosis, indicating that sGC
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Article Synopsis
  • The study aimed to evaluate how certain estradiol (E2) levels predict the likelihood of developing gestational diabetes mellitus (GDM) in women receiving fresh embryo transfers.
  • Results revealed that women with an E2/follicle (E2/F) ratio above 246.03 pg/ml had significantly lower rates of GDM and ovarian hyperstimulation syndrome (OHSS) compared to those below this threshold.
  • The findings suggest that the E2/F ratio is a better indicator for predicting GDM risks than other E2-related measurements, emphasizing its importance in reproductive health assessments.
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Impairment of oocyte quality caused by gut microbiota dysbiosis in obesity.

Genomics

September 2024

State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R(2)BGL), College of Life Sciences, Inner Mongolia University, Hohhot 010070, China. Electronic address:

Obesity poses risks to oocyte maturation and embryonic development in mice and humans, linked to gut microbiota dysbiosis and altered host metabolomes. However, it is unclear whether symbiotic gut microbes have a pivotal role in oocyte quality. In mouse models of fecal microbiota transplantation, we demonstrated aberrant meiotic apparatus and impaired maternal mRNA in oocytes, which is coincident with the poor developmental competence of embryos.

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Causal role of thyroid function in functional outcome after ischemic stroke: A Mendelian randomization study.

J Stroke Cerebrovasc Dis

December 2024

Department of Anesthesiology, Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Yuelu District, Changsha, Hunan, 410013, China. Electronic address:

Background: Previous observational studies have suggested that thyroid function may be associated with functional outcome after ischemic stroke (IS). Nevertheless, the causal relationship remains unclear. This study aimed to explore the causal effect of thyroid function [thyroid-stimulating hormone (TSH), free thyroxine (FT4), hyperthyroidism, and hypothyroidism] on functional outcome (based on the modified Rankin scale) after IS by two-sample Mendelian randomization (MR) analysis.

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Purpose: Comprehensive chromosomal status of blastocyst from women with polycystic ovary syndrome (PCOS) was limited. This study aimed to identify possible differences in the preimplantation blastocyst chromosome aberrations between PCOS women and controls receiving preimplantation genetic testing (PGT).

Methods: This was a multi-center retrospective cohort study including a total of 707 blastocysts from 147 PCOS women and 3006 blastocysts from 821 control women receiving PGT between 2015 and 2021.

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Article Synopsis
  • Mass spectrometry-based proteomics is a useful technology for identifying and quantifying proteins, but the presence of chimeric spectra from multiple precursor fragments can reduce its accuracy.
  • Recent experiments using a SCIEX TripleTOF instrument with a narrow isolation window of 0.1 Da showed improved spectral purity and reduced errors in identification and quantification, despite some loss in sensitivity.
  • The findings suggest that high-resolution isolation techniques could enhance the accuracy in clinical proteomics, making them valuable for precise protein analysis.
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Article Synopsis
  • Some people who have balanced chromosomal rearrangements (BCRs) might actually have hidden complex rearrangements (CCCRs) that can affect their health.
  • In a study with over 1,200 participants, researchers found that about 3.6% of BCR carriers also had these CCCRs, which can impact up to three different chromosomes.
  • The study showed that BCR carriers with only one or two chromosome rearrangements had better chances of having healthy embryos compared to those with three rearrangements.
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Background: Recurrent preimplantation embryo developmental arrest (RPEA) is the most common phenotype in assisted reproductive technology treatment failure associated with identified genetic abnormalities. Currently known maternal genetic variants explain only a limited number of cases. Variants of the β-tubulin subunit gene, , cause oocyte meiotic arrest and RPEA through a broad spectrum of spindle defects.

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The landscape of RNA binding proteins in mammalian spermatogenesis.

Science

October 2024

State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.

Despite continuous expansion of the RNA binding protein (RBP) world, there is a lack of systematic understanding of RBPs in the mammalian testis, which harbors one of the most complex tissue transcriptomes. We adapted RNA interactome capture to mouse male germ cells, building an RBP atlas characterized by multiple layers of dynamics along spermatogenesis. Trapping of RNA-cross-linked peptides showed that the glutamic acid-arginine (ER) patch, a residue-coevolved polyampholytic element present in coiled coils, enhances RNA binding of its host RBPs.

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Target Values for 25-Hydroxy and 1,25-Dihydroxy Vitamin D Based on Their Associations with Inflammation and Calcium-Phosphate Metabolism.

Nutrients

August 2024

Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Center Mannheim, University of Heidelberg, 69120 Mannheim, Germany.

Target values for 25-hydroxy vitamin D and 1,25(OH)D or 1,25-dihydroxy vitamin D remain a topic of debate among clinicians. We analysed data collected from December 2012 to April 2020 from two cohorts. Cohort A, comprising 455,062 subjects, was used to investigate the relationship between inflammatory indicators (white blood cell [WBC] count and C-reactive protein [CRP]) and 25(OH)D/1,25(OH)D.

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Association between the Maternal Gut Microbiome and Macrosomia.

Biology (Basel)

July 2024

Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410013, China.

Fetal macrosomia is defined as a birthweight ≥4000 g and causes harm to pregnant women and fetuses. Studies reported that the maternal intestinal microbiome plays a key role in the establishment, growth, and development of the fetal intestinal microbiome. However, whether there is a relationship between maternal gut microbiota and macrosomia remains unclear.

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Renoprotective effects of empagliflozin in high-fat diet-induced obesity-related glomerulopathy by regulation of gut-kidney axis.

Am J Physiol Cell Physiol

October 2024

Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, People's Republic of China.

The increasing prevalence of obesity-related glomerulopathy (ORG) poses a significant threat to public health. Sodium-glucose cotransporter-2 (SGLT2) inhibitors effectively reduce body weight and total fat mass in individuals with obesity and halt the progression of ORG. However, the underlying mechanisms of their reno-protective effects in ORG remain unclear.

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Article Synopsis
  • Sugammadex is a medication used to reverse muscle blockage during anesthesia, but recent reports indicate it may be associated with serious cardiac adverse events (CAEs).
  • A study analyzed data from the FDA on CAEs related to sugammadex and found 19 incidents mainly involving cardiac arrhythmias and coronary artery disorders, with bradycardia and cardiac arrest being the most common issues.
  • The findings suggest a potential connection between sugammadex and serious CAEs, emphasizing the importance of monitoring and assessing risks in patients with heart-related health concerns.
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Background: Preimplantation genetic testing (PGT) can reduce the risk of familial genetic diseases, chromosome abnormalities, and recurrent abortions. It is unclear whether genetic counselees with PGT indications understand and accept the implications of PGT. A well-developed and validated tool is needed to evaluate the knowledge, attitude, and practice (KAP) levels of genetic counselees with PGT indications.

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c-Myc-XRCC2-FOS axis promotes the proliferation and the resistance to Doxorubicin of NSCLC.

Biomed Pharmacother

October 2024

Department of Histology and Embryology, School of Basic Medical Sciences, Central South University, Changsha 410013, China. Electronic address:

Lung cancer represents one of the most prevalent malignant neoplasms, commanding an alarming incidence and mortality rate globally. Non-small cell lung cancer (NSCLC), constituting approximately 80 %-90 % of all lung cancer cases, is the predominant pathological manifestation of this disease, with a disconcerting 5-year survival rate scarcely reaching 10 %. Extensive prior investigations have elucidated that the aberrant expression of X-ray repair cross-complementing gene 2 (XRCC2), a critical meiotic gene intricately involved in the DNA damage repair process, is intimately associated with tumorigenesis.

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XRCC2 driven homologous recombination subtypes and therapeutic targeting in lung adenocarcinoma metastasis.

NPJ Precis Oncol

August 2024

The 1st Department of Thoracic Surgery of Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 4100013, China.

Lung adenocarcinoma (LUAD) is a leading cause of cancer mortality, with many patients facing poor prognosis, particularly those with metastatic or drug-resistant tumors. Homologous recombination genes (HRGs) are crucial in tumor progression and therapy resistance, but their clinical significance in LUAD is not well understood. In this study, we systematically characterize key HRGs in LUAD patients, identifying two distinct HR subtypes associated with different outcomes and biological functions.

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Mitochondrial diseases, caused mainly by pathogenic mitochondrial DNA (mtDNA) mutations, pose major challenges due to the lack of effective treatments. Investigating the patterns of maternal transmission of mitochondrial diseases could pave the way for preventive approaches. In this study, we used DddA-derived cytosine base editors (DdCBEs) to generate two mouse models, each haboring a single pathogenic mutation in complex I genes (ND1 and ND5), replicating those found in human patients.

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Objectives: Observational studies have suggested an association between age at natural menopause (ANM) and ventricular structure and function. Nevertheless, the causal relationship remains unclear. This study aimed to evaluate the causal effects of ANM on ventricular structure and function by Mendelian randomization (MR) analysis.

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Nickel atom-clusters nanozyme for boosting ferroptosis tumor therapy.

Mater Today Bio

August 2024

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, PR China.

The translation of Fe-based agents for ferroptosis tumor therapy is restricted by the unstable iron valence state, the harsh catalytic environment, and the complex tumor self-protection mechanism. Herein, we developed a stable nickel-based single-atom-metal-clusters (NSAMCs) biocatalyst for efficient tumor ferroptosis therapy. NSAMCs with a nanowire-like nanostructure and hydrophilic functional groups exhibit good water-solubility, colloidal stability, negligible systemic toxicity, and target specificity.

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Background: Cesarean scar pregnancy (CSP) is one of the rarest ectopic pregnancies which may be associated with life-threatening complications. Owing to the rarity of CSP, little is known about it. This study aimed to evaluate the value of the first-trimester transvaginal sonography (TVS) diagnosis and the risk factors of CSP after in vitro fertilization-embryo transfer (IVF-ET).

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