Publications by authors named "Jia-Jia Qi"

Controllable preparation of inorganic nanomaterials with specific morphology and structure is very important for their applications in various fields. Herein, a general strategy was proposed to controllably synthesize nano-CaCO via a water-in-oil microemulsion method in the rotating packed bed reactor. By tuning key parameters, nano-CaCO with four primarily analyzed morphologies, including spherical, spindle-like, clustered, or linear formations, can be selectively obtained.

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  • This study explored the effects of oleanolic acid (OA) on porcine oocyte maturation during in vitro conditions, highlighting its antioxidant and anti-inflammatory properties.
  • Supplementing with 5 μM OA led to higher rates of mature oocytes and successfully activated embryos, showing improvements in cellular functions and development metrics.
  • The mechanisms suggest that OA enhances antioxidant capacity and promotes maturation by activating the Nrf2/HO-1 signaling pathway, which increases protective gene expression and reduces oxidative stress in porcine oocytes.
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Objective: Oleanolic acid (OA) is a pentacyclic triterpenoid with antioxidant activity that can be an effective scavenger of free radicals in cells. This study was designed to investigate the effects of OA on porcine early embryo developmental competence in vitro and its possible mechanisms of action.

Methods: In the present study, parthenogenetically activated porcine embryos were used as models to assess the effect of OA on the in vitro developmental capacity of early porcine embryos in vitro.

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The aim of this study was to investigate the signaling pathways involved in the proliferation and differentiation of pig Sertoli cells (SCs) mediated by thyroid hormone (T3) to provide a theoretical and practical basis for enhancing pig semen production. The effects of different concentrations of T3 on the proliferation of pig SCs were evaluated using the CCK8 assay. The impact of T3 on the proliferation and differentiation of pig SCs was further examined using RNA-seq, qPCR, and Western Blotting techniques.

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Chlorogenic acid (CGA) is an effective phenolic antioxidant that can scavenge hydroxyl radicals and superoxide anions. Herein, the protective effects and mechanisms leading to CGA-induced porcine parthenogenetic activation (PA) in early-stage embryos were investigated. Our results showed that 50 μM CGA treatment during the in vitro culture (IVC) period significantly increased the cleavage and blastocyst formation rates and improved the blastocyst quality of porcine early-stage embryos derived from PAs.

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  • FSP1 is a key protein that prevents ferroptosis—a type of cell death— and is significant for mitochondrial function, but its role in pig embryo development was previously unknown.
  • Inhibiting FSP1 resulted in lower cleavage and blastocyst rates, smaller blastocyst size, and reduced cell proliferation in early pig embryos.
  • The study found that blocking FSP1 led to increased harmful ferrous ions and ROS levels, decreased mitochondrial function, and impaired antioxidant defenses, ultimately harming embryo development and quality.
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Sertoli cells are an important type of somatic cell in the testis that are in direct contact with spermatogonia in vivo and play an important role in the process of spermatogenesis. Chlorogenic acid (CGA) plays a pivotal role in the regulation of the mammalian cell heat stress response. For example, CGA treatment protects porcine oocytes from heat stress-induced apoptosis and prevents reduced embryo quality.

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Improving the quality of oocytes matured in vitro is integral to enhancing the efficacy of in vitro embryo production. Oxidative stress is one of the primary causes of quality decline in oocytes matured in vitro. In this study, ferulic acid (FA), a natural antioxidant found in plant cell walls, was investigated to evaluate its impact on bovine oocyte maturation and subsequent embryonic development.

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As a pentacyclic triterpene, MA exhibits effective free radical scavenging capabilities. The purpose of this study was to explore the effects of MA on porcine early-stage embryonic development, oxidation resistance and mitochondrial function. Our results showed that 1 μM was the optimal concentration of MA, which resulted in dramatically increased blastocyst formation rates and improvement of blastocyst quality of -derived embryos from parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT).

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Clinopodium chinense, a traditional folk medicinal herb, has been used to treat abnormal uterine bleeding(AUB) for many years. Saponins and flavonoids are the main active components in C. chinense.

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This study aims to explore the anti-inflammatory and hemostatic effects of the total extract of Clinopodium chinense(TEC), total saponins of C. chinense(TSC), and total flavonoids of C. chinense(TFC) in female rats with abnormal uterine bleeding(AUB), and the possible mechanism.

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Asiatic acid is a natural triterpene found in Centella asiatica that acts as an effective free radical scavenger. Our previous research showed that asiatic acid delayed porcine oocyte ageing in vitro and improved preimplantation embryo development competence in vitro; however, the protective effects of asiatic acid against oxidative stress in porcine oocyte maturation are still unclear. Here, we investigated the effects of asiatic acid on porcine oocyte in vitro maturation (IVM) and subsequent embryonic development competence after parthenogenetic activation (PA) and in vitro fertilization (IVF).

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Cypermethrin (CYP) is a widely used insecticide that may be harmful to nontarget species. However, the toxicity of CYP to porcine Sertoli cells (SCs) and its associated mechanism is not known. We investigated the toxicity of CYP and showed that CYP induced cytotoxicity in porcine SCs in a dose-dependent manner.

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  • Asiatic acid (AA), a pentacyclic triterpene, is an antioxidant that shows promise in improving the quality of aging porcine oocytes during a process mimicking aging (IVA).
  • Research found that AA supplementation significantly reduced abnormalities in aged oocytes and helped maintain their ability to develop after fertilization.
  • AA also countered oxidative stress, preserved crucial cellular functions like ATP production, and decreased early apoptosis rates in these aged oocytes.
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Asiatic acid is a pentacyclic triterpene enriched in the medicinal herb Centella asiatica, and it has been suggested to possess free radical scavenging and anti-apoptotic properties. The purpose of the current study was to explore the effects of asiatic acid on porcine early-stage embryonic development and the potential mechanisms for any observed effects. The results showed that 10 μM asiatic acid supplementation during the in vitro culture period dramatically improved developmental competence in porcine embryos derived from parthenogenetic activation (PA), somatic cell nuclear transfer (SCNT) and in vitro fertilization (IVF).

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  • Two types of CeO2@MnO2 nanostructures were created using a self-assembly method.
  • The resulting nanowires demonstrated impressive pseudocapacitance performance, reaching 255 F g(-1) and showcasing excellent rate capability.
  • When used in an asymmetric supercapacitor, they achieved an energy density of 27.5 W h kg(-1) and a maximum power density of 1.6 kW kg(-1).
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