Erucic acid impairs male fertility by suppressing retinoic acid synthesis in sertoli cells.

Although dietary factors are increasingly implicated as crucial determinants of male fertility, specific dietary risk factors and their metabolic mechanisms remain poorly understood. In this study, patients with non-obstructive azoospermia (NOA) or severe oligospermia (EO) demonstrated significantly elevated erucic acid (EA) levels, with a nearly 3-fold increase in serum (P < 0.0001) and a 27 % increase in semen (P = 0.

Preimplantation genetic testing for monogenic disorders to prevent MSH6 germline pathogenic variant related colorectal cancer.

Background: Colorectal cancer (CRC) is the third most deadly cancer in the world, accounting for approximately 10% of all cancer diagnoses and cancer-related deaths worldwide each year. In addition to recognized risk factors such as obesity, physical inactivity, and smoking, genetic predispositions significantly contribute to the risk of CRC.

Methods: Whole -exome sequencing (WES) was performed on a proband from a Chinese family diagnosed with CRC to identify potential variants.

Identification of Ferroptosis-Related Genes Associated With Cryptorchidism via Bioinformatics and Experimental Verification.

Cryptorchidism is a notorious innate malformation in children that always leads to oligospermatism or azoospermatism. Moreover, there is a relationship between oxidative stress and spermatogenesis dysfunction caused by cryptorchidism. Ferroptosis is associated with iron metabolism and oxidative stress as a novel form of cell death regulation, which is involved in the pathogenesis of many diseases.

An NAG-Activatable Glow-Type Chemiluminescent Probe for Sensitive and Early Diagnosis of Acute Kidney Injury through Urinalysis.

The current clinical diagnostic criteria for acute kidney injury (AKI) are based on the evaluation of changes in serum biomarkers (sCr, BUN) and urine output, which are insensitive and typically do not show significant differences until the middle to late stages, thereby hindering the time diagnosis of AKI. Herein, we report an N-acetyl-β-d-glucosaminidase (NAG)-activatable glow-type chemiluminescent probe (CL-NAG) for sensitive detection of urinary NAG and early diagnosis of AKI. CL-NAG was designed and synthesized by incorporating N-acetyl-β-d-glucosamine into the phenoxy-dioxetane scaffolds through a self-immolative linker.

Deficiency of FUN14 domain-containing 1 enhances the migration and invasion of fibroblast-like synoviocytes in rheumatoid arthritis through mitochondrial dysregulation.

Background: Fibroblast-like synoviocytes (FLS) display aggressive phenotypes contributing to synovitis and joint destruction in rheumatoid arthritis (RA). Disrupted mitochondrial homeostasis has been proposed to aggravate the RA pathogenesis, however, the underlying mechanism remains to be elucidated. This study aimed to elucidate the role of mitophagy receptor FUN14 domain-containing 1 (FUNDC1) on RA-FLS migration and invasion.

Cultural Adaptation and Pilot Testing of a Basic Palliative Care Curriculum for Practicing Physicians and Nurses in Mainland China.

To meet the growing palliative care (PC) needs of China's aging population, we culturally adapted and pilot tested an evidence-based basic PC training program for practicing clinicians. Barrera's framework guided a multistage, surface, and deep structural adaptation of an existing course. We pilot tested the final curricula with 51 participants in September 2022.

A novel homozygous frameshift mutation in MCM8 causes primary gonadal dysgenesis in both genders.

Purpose: We aimed to demonstrate the genetic factors of primary gonadal dysgenesis in a consanguineous family characterized by underdeveloped testes and non-obstructive azoospermia (NOA) in a male and primary amenorrhoea and primary ovarian insufficiency (POI) in a female.

Methods: DNA was extracted from the male proband with infertility from the consanguineous family for whole-exome sequencing and bioinformatics analysis to screen for potential pathogenic genes and mutations. Sanger sequencing was used for further validation of his family pedigree.

Melatonin protects aged oocytes from depalmitoylation-mediated quality reduction by promoting PPT1 degradation and antioxidation.

Oocyte aging is closely related to a decline in female fertility, accompanied by increased reactive oxygen species levels and changes in protein posttranslational modifications. However, the role of protein palmitoylation in oocyte aging has not been investigated. In the present study, a new association between redox and palmitoylation in aging oocytes was found.

Multi-omics analysis and experimental verification reveal testicular fatty acid metabolism disorder in non-obstructive azoospermia.

Increasing evidence implicates disruptions in testicular fatty acid metabolism as a contributing factor in non-obstructive azoospermia (NOA), a severe form of male infertility. However, the precise mechanisms linking fatty acid metabolism to NOA pathogenesis have not yet been fully elucidated. Multi-omics analyses, including microarray analysis, single-cell RNA sequencing (scRNA-seq), and metabolomics, were utilized to investigate disruptions in fatty acid metabolism associated with NOA using data from public databases.

Development and evaluation of a microfluidic human testicular tissue chip: a novel platform for reproductive biology and pharmacology studies.

Organ-on-a-chip culture systems using human organ tissues provide invaluable preclinical insights into systemic functions . This study aimed to develop a novel human testicular tissue chip within a microfluidic device employing computer-aided design software and photolithography technology. Polydimethylsiloxane was used as the primary material to ensure marked gas permeability and no biotoxicity, enabling effective mimicry of the testicular microenvironment.

Scale effects on suspended sediment and their response to extreme precipitation in karst basins.

Extreme precipitation is a crucial trigger for soil erosion events in karst regions. However, the existence of a scale effect in suspended sediment characteristics of karst basins and which extreme precipitation variables control this effect remain unclear. To investigate this, we analyzed the scale effect on suspended sediment characteristics using monthly hydrological data from five karst basins of varying scales, consistently monitored from 2012 to 2019.

[Omega-3 polyunsaturated fatty acids for the treatment of oligoasthenozoospermia: Progress in research].

Oligoasthenozoospermia (OAS) is one of the most common types of male infertility, which, however, still lacks effective treatment. An increasing number of studies have shown the potential therapeutic value of omega-3 polyunsaturated fatty acid (ω-3 PUFA) in the treatment of OAS. This article presents an overview of the studies on the effects of ω-3 PUFA on fatty acid composition and metabolism, inflammatory response, and oxidative stress in OAS, hoping to provide some new ideas for the treatment of the disease.

A Novel Compound Heterozygous Mutation in TDRD9 Causes Oligozoospermia.

Oligozoospermia is an important cause of male infertility for which treatment options are limited. Spermatogenesis is complex, and the causes of oligozoospermia remain largely unknown. Because genetic mutations are important factors of oligozoospermia pathogenesis, our study aimed to explore the genetic causes of oligozoospermia.

Subsequent maternal sleep deprivation aggravates cognitive impairment by modulating hippocampal neuroinflammatory responses and synaptic function in maternal isoflurane-exposed offspring mice.

Introduction: Pregnant women may need to undergo non-obstetric surgery under general anesthesia owing to medical needs, and pregnant women frequently experience sleep disturbances during late gestation. Preclinical studies demonstrated that maternal isoflurane exposure (MISO) or maternal sleep deprivation (MSD) contributed to cognitive impairments in offspring. Research studies in mice have revealed that SD can aggravate isoflurane-induced cognitive deficits.

Octanoic acid mitigates busulfan-induced blood-testis barrier damage by alleviating oxidative stress and autophagy.

Background: The management of male infertility continues to encounter an array of challenges and constraints, necessitating an in-depth exploration of novel therapeutic targets to enhance its efficacy. As an eight-carbon medium-chain fatty acid, octanoic acid (OCA) shows promise for improving health, yet its impact on spermatogenesis remains inadequately researched.

Methods: Mass spectrometry was performed to determine the fatty acid content and screen for a pivotal lipid component in the serum of patients with severe spermatogenesis disorders.

Interpreting and modelling the daily extreme sediment events in karst mountain watersheds.

Increasingly frequent extreme rainfall as a result of climate change is strongly damaging the global soil and water environment. However, few studies have focused on daily extreme sediment events (DESE) in heterogeneous karst watersheds based on long-term in-situ observations. This study quantitatively assessed the time effect of DESE on rainfall response, decoupled the impact of environmental factors on DESE by using structural equation modelling, and finally explored the modelling scheme of DESE based on the hybrid model.

Ecology of End-of-life Medical Care for Advanced Cancer Patients in China.

Aims: Cancer is a leading cause of death worldwide. Approximately 30% of global cancer-related deaths occur in mainland China. However, there is a paucity of information regarding the end-of-life care-seeking behavior of patients with advanced cancer in China.

[A study on the application of cross-frequency coupling characteristics of neural oscillation in the diagnosis of mild cognitive impairment].

In order to fully explore the neural oscillatory coupling characteristics of patients with mild cognitive impairment (MCI), this paper analyzed and compared the strength of the coupling characteristics for 28 MCI patients and 21 normal subjects under six different-frequency combinations. The results showed that the difference in the global phase synchronization index of cross-frequency coupling under δ-θ rhythm combination was statistically significant in the MCI group compared with the normal control group ( = 0.025, = 0.

Controllable Si-C Bond Formation from Trihydrosilanes En Route to Synthesis of 1,4-Azasilinanes with Diverse Silyl Functionalities.

A B(CF)-catalyzed controllable inter/intra-/intermolecular Si-C bond formation process has been developed from trihydrosilane and dienamide with alkenes, anilines, or aryl iodides. A variety of 1,4-azasilinanes have been generated with diverse -cyclic heteroleptic disubstitutions on silicon, thereby expanding the range of silaazacyclic rings available for the discovery of silicon-containing drugs.

ZDHHC17 participates in the pathogenesis of polycystic ovary syndrome by affecting androgen conversion to estrogen in granulosa cells.

Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder affecting women of reproductive age and is a significant cause of female subfertility. Our previous research demonstrated that the abnormal palmitoylation of heat shock protein-90α (HSP90α) plays a role in the development of PCOS. However, the palmitoyl acyltransferases in HSP90α palmitoylation remain poorly understood.

Omega-3 polyunsaturated fatty acids and its metabolite 12-HEPE rescue busulfan disrupted spermatogenesis via target to GPR120.

Busulfan is an antineoplastic, which is always accompanied with the abnormal of spermatogonia self-renewal and differentiation. It has been demonstrated that the omega-3 polyunsaturated fatty acids (PUFAs) benefits mature spermatozoa. However, whether omega-3 can protect endogenous spermatogonia and the detailed mechanisms are still unclear.

Maternal RNA binding protein with multiple splicing 2 (RBPMS2) is involved in mouse blastocyst formation through the bone morphogenetic protein pathway.

Research Question: Is early embryo development in mice influenced by RNA binding protein with multiple splicing 2 (RBPMS2), a maternal factor that accumulates and is stored in the cytoplasm of mature oocytes?

Design: The expression patterns of RBPMS2 in mouse were analysed using quantitative real-time PCR (qRT PCR) and immunofluorescence staining. The effect of knockdown of RBPMS2 on embryo development was evaluated through a microinjection of specific morpholino or small interfering RNA. RNA sequencing was performed for mechanistic analysis.

Enhanced Fluorescence Characteristics of SrAlO: Eu, Dy Phosphor by Co-Doping Gd and Anti-Counterfeiting Application.

A series of long-afterglow luminescent materials (SrAlO: Eu (SAOE), SrAlO: Eu, Dy (SAOED) and SrAlO: Eu, Dy, Gd (SAOEDG)) was synthesized via the combustion method. Temperature and concentration control experiments were conducted on these materials to determine the optimal reaction temperature and ion doping concentration for each sample. The crystal structure and luminescent properties were analyzed via X-ray diffraction (XRD), photoluminescence (PL), and afterglow attenuation curves.