Search Results (93)

This study explored the potential application of Lycium barbarum residue (LBR) in alfalfa silage, particularly focusing on its synergistic effects when combined with silage additives. Two controlled experiments were conducted. In Experiment 1, four treatment groups were established with different LBR addition levels (0, 70, 140, 210 g/kg fresh weight, FW). Experiment 2 used the optimal LBR level identified (210 g/kg FW), and further investigated the effects of additive combinations. The treatments in this experiment included: (1) 210 g/kg FW LBR (CK), (2) a combination of 210 g/kg FW LBR with lactic acid bacteria (ALL), (3) a combination of 210 g/kg FW LBR with molasses (ALM), and (4) a combination of 210 g/kg FW LBR with both lactic acid bacteria and molasses (ALLM). The silage was ensiled for 7, 15, 30, and 90 days. The results demonstrated that the incorporation of LBR significantly enhanced silage fermentation quality. The 210 g/kg treatment exhibited the most favorable outcomes, characterized by the lowest pH, reduced ammonia nitrogen content, and the highest concentration of lactic acid. Additionally, 210 g/kg treatment showed increased levels of total phenolics and flavonoids, as well as enhanced antioxidant activities as measured by DPPH (2,2-diphenyl-1-picrylhydrazyl radical scavenging activity), ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity), and FRAP (ferric-reducing antioxidant power) assays. These improvements in bioactive compounds were positively correlated with lactic acid content and negatively associated with pH. Furthermore, in Experiment 2, the combined application of LAB and molasses along with LBR further optimized the silage quality, resulting in the lowest pH and ammonia nitrogen content, alongside a marked improvement in antioxidant capacity during the later ensiling stages. Overall, the study concludes that the inclusion of 210 g/kg LBR in combination with lactic acid bacteria and molasses effectively enhances both the fermentation process and the functional value of alfalfa silage, providing a scientific foundation for the utilization of agricultural byproducts. Full article

Background: Accurate and stable instrument positioning is critical in dental implant procedures, particularly in anatomically constrained regions. Conventional navigation systems assume a static patient head, limiting adaptability in dynamic surgical conditions. This study proposes and validates a real-time motion compensation framework that integrates optical motion tracking with a collaborative robot to maintain tool alignment despite patient head movement. Methods: A six-camera OptiTrack Prime 13 system tracked rigid markers affixed to a 3D-printed human head model. Real-time head pose data were streamed to a Kuka LBR iiwa robot, which guided the implant handpiece to maintain alignment with a predefined target. Motion compensation was achieved through inverse trajectory computation and second-order Butterworth filtering to approximate realistic robotic response. Controlled experiments were performed using the MAiRA Pro M robot to impose precise motion patterns, including pure rotations (±30° at 10–40°/s), pure translations (±50 mm at 5–30 mm/s), and combined sinusoidal motions. Each motion profile was repeated ten times to evaluate intra-trial repeatability and dynamic response. Results: The system achieved consistent pose tracking errors below 0.2 mm, tool center point (TCP) deviations under 1.5 mm across all motion domains, and an average latency of ~25 ms. Overshoot remained minimal, with effective damping during motion reversal phases. The robot demonstrated stable and repeatable compensation behavior across all experimental conditions. Conclusions: The proposed framework provides reliable real-time motion compensation for dental implant procedures, maintaining high positional accuracy and stability in the presence of head movement. These results support its potential for enhancing surgical safety and precision in dynamic clinical environments. Full article

Background/Objectives: The diagnosis of osteomyelitis is typically based on clinical suspI icion supported by imaging and lab findings. Various nuclear medicine imaging, including bone SPECT/CT, is emerging as an effective tool to guide the diagnosis of osteomyelitis. This study investigates whether the preoperative ^99mTc DPD bone SPECT/CT uptake \ratio correlates with intraoperative tissue culture positivity in patients with suspected lower extremity osteomyelitis. Methods: We retrospectively reviewed 46 patients who underwent surgery for suspected osteomyelitis of the lower extremity between February 2020 and May 2025. Bone SPECT/CT was performed using ^99mTc DPD, and uptake values were measured using Syngo.via software. Lesion-to-Background Ratio (LBR) was calculated by comparing uptake in the lesion with the contralateral bone. Intraoperative culture was conducted at the region with high uptake in SPECT/CT. Results: Among the 46 patients who underwent surgery, 28 had positive tissue cultures, and 18 were negative. The mean LBR was significantly higher in culture-positive cases (14.5 ± 4.5) than in culture-negative cases (6.8 ± 8.0, p = 0.0002) Inflammatory markers (WBC, ANC, ESR, CRP) and the antibiotic-free interval before surgery did not significantly differ between groups or correlate with LBR. ROC analysis identified an LBR threshold of 9.44, yielding a sensitivity of 71.4% and specificity of 88.9% for predicting positive cultures (AUC = 0.81). Conclusions: ^99mTc DPD bone SPECT/CT uptake ratio may serve as a useful tool for the preoperative assessment of suspected lower extremity osteomyelitis, providing a more reliable prediction of intraoperative microbial culture results compared to serum inflammatory markers or the duration of antibiotic-free intervals. High tracer uptake may also be observed in various other conditions and thus should be interpreted in a multidisciplinary context in conjunction with other modalities. Full article

The growing threat of infectious diseases requires novel therapeutics with different mechanisms of action. Antimicrobial peptides (AMPs), which are crucial for innate immunity, are a promising research area. The medicinal leech (Hirudo medicinalis) is a potential source of bioactive AMPs that are vital while interacting with microorganisms. This study aims to investigate the antimicrobial properties of peptides found in the H. medicinalis genome using a novel high-throughput screening method based on the expression of recombinant AMP genes in Escherichia coli. This approach enables the direct detection of AMP activity within cells, skipping the synthesis and purification steps, while allowing the simultaneous analysis of multiple peptides. The application of this method to the first identified candidate AMPs from H. medicinalis resulted in the discovery of three novel peptides: LBrHM1, NrlHM1 and NrlHM2. These peptides, which belong to the lumbricin and macin families, exhibit significant activity against E. coli. Two fragments of the new LBrHM1 homologue were synthesised and studied: a unique N-terminal fragment (residues 1–23) and a fragment (residues 27–55) coinciding with the active site of lumbricin I. Both fragments exhibited antimicrobial activity in a liquid medium against Bacillus subtilis. Notably, the N-terminal fragment lacks homologues among previously described AMPs. Full article

This study evaluated the efficacy of acclimated cow manure as a seed microbiome to enhance food waste hydrolysis. Anaerobic hydrolysis was performed on simulated food waste in a hydrolytic–acidogenic leach bed reactor (LBR) operated in batch mode under mesophilic conditions (35 °C) for 16 days. The acclimation process involved three sequential runs: Run-1 utilized 20% (w/w) cow manure as seed, Run-2 employed the digestate from Run-1 (day 5), and Run-3 used the digestate from Run-1 (day 10). Run-3 achieved 70.4% removal of volatile solids (VSs), surpassing Run-1 (47.1%) and Run-2 (57.1%). Compared with the first run, the production of chemical oxygen demand (COD) and total soluble products (TSPs) increased by 48.7% and 75.9%, respectively, in Run-3. The hydrolysis rate of proteins was 48.4% in Run-1, while an increase of 16.9% was achieved in Run-3 with the acclimatized consortium. A molecular analysis of the microbial community existing in the reactors of Run-2 and Run-3 indicated that the improvement in process performance was closely related to the selection and enrichment of specific hydrolytic–acidogenic bacteria in the reactor. A functional analysis showed that the gene copy numbers for pyruvate synthesis and fatty acid synthesis and metabolism pathways were higher in all bacterial species in Run-3 compared to in those of the other two runs, indicating improved capacity through acclimation in Run-3. The experimental results demonstrate that the hydrolysis of food waste can be enhanced through the acclimation of seed microbes from cow manure. Full article

Background: Assisted reproductive technologies (ARTs) are essential in treating infertility but often face limited success due to low implantation and live birth rates. East Asian traditional medicine (EATM), including acupuncture and herbal medicine (HM), may enhance physiological responses during ART cycles. This study evaluated the effectiveness and safety of EATM in improving clinical pregnancy and live birth outcomes in women undergoing ART. Methods: This review, registered in PROSPERO (CRD42023411712), systematically searched 11 databases up to 31 March 2023. We included randomized controlled trials (RCTs) comparing EATM interventions to control groups. Data extraction and quality assessment were performed independently by two authors. Meta-analysis used the inverse-variance method in Stata 12.0. A total of 37 RCTs involving 10,776 women (aged 29–38) were analyzed. Studies addressed infertility causes including polycystic ovary syndrome, tubal blockage, diminished ovarian reserve, and unexplained infertility. Acupuncture therapies included body, electro-, laser, and auricular acupuncture. Herbal treatments were administered as powders, pills, granules, decoctions, and ointments based on traditional Chinese formulas. Results: EATM interventions were associated with significant improvements in clinical pregnancy and live birth rates. Acupuncture increased clinical pregnancy rates (CPR: RR 1.316, 95% CI 1.171–1.480) and live birth rates (LBR: RR 1.287, 95% CI 1.081–1.533). HM also enhanced CPRs (RR 1.184) and LBRs (RR 1.147). Subgroup analysis showed true acupuncture and HM were more effective than sham or placebo. No significant differences in adverse events were found. Conclusions: EATM, particularly acupuncture and HM, appears to be a safe and effective complementary therapy that can be used to improve ART outcomes. Future research should focus on developing standardized acupuncture and herbal protocols to optimize integration with ART. Full article

Background: Infertility is a multifactorial condition with medical, psychological, demographic, and economic impacts. Around 3–5% of cases are due to uterine dysfunction. Absolute uterine factor infertility (AUFI) refers to infertility caused entirely by the absence or abnormality of the uterus, which prevents embryo implantation or pregnancy viability. Uterus transplantation (UTx) has emerged as a promising treatment for AUFI and has been successfully performed in over 10 countries. Objectives: This study aims to conduct a systematic review of uterus transplantation, evaluating its efficacy and safety, as well as maternal, neonatal, and long-term outcomes. It also explores current challenges and future directions. Methods: The methodology was registered on the PROSPERO platform. A literature search was performed in January 2025 across PubMed, Web of Science, and Scopus for articles published from January 2002 to December 2024 in English or Portuguese. The query was: “uterus/transplantation AND (pregnancy OR complications OR newborn OR premature OR diseases)”. Study quality was assessed by journal impact factor (IF). Data were analyzed using Microsoft Excel. Results: A total of 10 studies were included: four from Sweden, three from the DUETS group, two from the Czech Republic, and one multi-institutional American study. The UTx success rate was 74.0%; clinical pregnancy rate (CPR) and live birth rates (LBR) per embryo transfer (ET) were 36.3% and 22.0%, respectively. No significant increase in congenital or neurological complications was observed. Adverse psychological outcomes were associated with transplant failure or pregnancy loss. Conclusions: UTx is a promising treatment for AUFI, showing favorable pregnancy and birth outcomes without major fetal or neonatal risks. Full article

Thousands of biomarkers have been discovered to solve the mechanisms of cancer, but dynamic alterations in the parameters that affect cancer progression cause complex disease status. Therefore, it is essential when dealing with cancer to analyze all parameters, including pathway information, to understand the disease mechanism of action. In our study, we applied multi-omics data integration for microbiome, transcriptome, and microbial pathway datasets obtained from colorectal cancer patients. The Cldn7 gene and Fusobacteria, which both play roles in the stability of the intestinal barrier, were found to be highly associated with each other (r = 0.71). The Klf3 gene has been identified as a critical regulator in the activation of the WNT1 and WNT/β-catenin signaling pathways. Notably, it exhibited a strong positive correlation with the presence of Fusobacteria, which are also implicated in modulating these pathways. In addition, the glutaryl CoA degradation and p-cymene degradation pathways demonstrated a strong positive association with the expression of the Ahcy, Eis2s2, Hsp90ab1, Psma7, Lbr, Rpl7l1, Cse1l, Cbx3, Ncl, Hspd1, Tpx2, and Top2a genes (r > 0.65), suggesting their potential involvement in the regulation and metabolic integration of these pathways at the transcriptional level. Full article

Background and Objectives: The aim of this study is to evaluate the relationship between serum estradiol (E2) levels measured on the day of antagonist administration and live birth rates (LBRs) in women undergoing IVF-ET with an antagonist protocol. Materials and Methods: Data from women who underwent IVF-ET with an antagonist protocol between 2011 and 2023 were retrospectively analyzed. Patients were divided into five groups on the basis of serum E2 levels measured on the day of antagonist administration (Group I: E2 < 400 pg/mL, Group II: 400 ≤ E2 < 650 pg/mL, Group III: 650 ≤ E2 < 800 pg/mL, Group IV:800 ≤ E2 < 1000 pg/mL, and Group V: E2 ≥ 1000 pg/mL). The independent effect of serum E2 levels on live birth was analyzed via an adjusted regression model. Results: A total of 1613 patients were included in the study. The overall LBR was 32.1%. The LBRs for Groups I, II, III, IV, and V were 28.9%, 37.8%, 26.4%, 32.2%, and 34.1%, respectively (p = 0.017). In the adjusted regression model, serum E2 levels measured on the day of antagonist administration < 400 pg/mL (OR: 0.752, 95% CI: 0.580–0.999, p = 0.048) and 650 ≤ E2 < 800 pg/mL (OR: 0.595, 95% CI: 0.388–0.911, p = 0.011) were identified as factors that reduce the likelihood of a live birth, adjusting for age, infertility duration, body mass index (BMI), cycle number, quality of embryo, and number of embryos transferred. Conclusions: The serum E2 level associated with the highest LBR in women undergoing IVF-ET with an antagonist protocol was found to be in the range of 400–650. Serum E2 levels < 400 pg/mL or in the range of 650–800 pg/mL were statistically significantly associated with a reduced LBR. Full article

Objectives: To assess if the instillation of plasma rich growth factors (PRGFs) improves endometrial thickness (EMT) in frozen embryo cycles performed under hormone treatment where the endometrium was very thin (≤5 mm). Methods: First, a randomized controlled trial (RCT) was performed comparing women only receiving an increase in estrogen therapy (n = 9) and women receiving both the increase in estrogen therapy and three instillations of PRGF (n = 13). The second part of the study consisted of a prospective observational follow-up of the patients included in the RCT (for 1–3 months in the study group, and for 1–6 months in the control group). Results: In the RCT, there was an increase in EMT in both the PRGF and control groups. However, the increase was significantly higher in the PRGF group (1.30 ± 0.67 mm) compared to the control group (0.58 ± 0.51 mm). In the PRGF group, 23% achieved an EMT of 7 mm compared to 0% in the control group. There were 2 pregnancies in the PRGF group resulting from the 3 transfers performed in that group. No transfer was carried out in the control group. There was a significant increase in EMT 1–3 months after the PRGF cycle. The live birth rate per transfer was 20% in the cycles following the PRGF cycles, whereas it was 30% per starting woman. For women in the control group who later underwent PRGF, the LBR was 57.1%. Conclusions: PRGF instillation in cases of very thin endometrium increases EMT moderately. It is suggested that the beneficial effect of PRGF may persist for 1–3 cycles after instillation. Full article

Background/Objectives: Unexpected low responders are patients with normal ovarian reserve tests who exhibit suboptimal responses to stimulation but have promising treatment potential due to adequate follicle availability. This study aimed to compare the live birth rates (LBRs) between fixed and flexible gonadotropin-releasing hormone antagonist (GnRH-ant) protocols in low-prognosis patients from Patient-Oriented Strategies Encompassing IndividualizeD Oocyte Number (POSEIDON) groups 1 and 2. Methods: This retrospective cohort study included 117 women classified as POSEIDON groups 1 and 2 who underwent GnRH-ant protocols for in vitro fertilization (IVF)/Intracytoplasmic Sperm Injection (ICSI) at the Petrova Maternity Hospital in Zagreb (2019–2020). The primary outcome analyzed was the live birth rate (LBR). The secondary outcomes were the GnRH start day, duration of gonadotropin therapy, number of oocytes, number of embryos, number of blastocysts, number of third-day embryos, number of vitrified embryos, positive pregnancy test, clinical pregnancy, and miscarriage rate. Group comparisons were conducted using Mann–Whitney and chi-squared tests. Results: In POSEIDON group 1, the fixed protocol significantly improved outcomes, with higher rates of clinical pregnancy, 12-week ongoing pregnancy, and LBRs (58.8% vs. 8.3%). More fresh transferable embryos were also noted (p < 0.05). In POSEIDON group 2, no significant differences were observed between protocols for any outcomes. Conclusions: The fixed GnRH-ant protocol improved pregnancy outcomes for POSEIDON group 1 but showed no advantage over the flexible protocol in POSEIDON group 2. Full article

Background and Objectives: POSEIDON 4 (P4) patients face the most adverse outcomes among poor responders. Oocyte donation has overcome unsatisfactory live birth rates (LBRs) in P4 patients and has become an indispensable approach. However, many patients refuse oocyte donation despite poor live birth likelihood using autologous oocytes. This study aimed to determine clinical outcomes and live birth chances in P4 patients using autologous and donated oocytes. We also identified influencing factors of fertility outcome in P4 patients who underwent donor cycles. Materials and Methods: Retrospective data of 345 P4 patients who explored the first ovarian stimulation cycle (control group) were compared to 105 patients who failed to conceive and underwent repeated autologous ovarian stimulations with an increased starting gonadotropin dose and 100 unpregnant patients who received donated oocytes. Univariate analysis was used to identify prognostic factors of oocyte donation outcomes in P4 patients. Results: LBRs were significantly higher in the donor oocyte group. A higher number of retrieved and good-quality oocytes without differences in the blastocyst number and LBRs were found in the autologous patient group with adjusted gonadotropin dose compared to the control group. Univariate analysis showed that oocyte and embryo quality as well as blastocyst development had a positive impact on live birth in the donor patient group. Conclusions: Autologous in vitro fertilization (IVF) retreating and oocyte donation should be strongly advised for poor-prognosis P4 patients. Still, efforts in tailoring ovarian stimulation to obtain higher oocyte and embryo numbers in autologous cycles should be continued. Full article

This study aimed to compare sperm DNA fragmentation (SDF) levels between ejaculate and testicular sperm and evaluate clinical outcomes of intracytoplasmic sperm injection (ICSI) cycles using testicular sperm (T-ICSI) versus ejaculate sperm (E-ICSI) in males with high ejaculate SDF, prior ICSI failures, or severe male infertility. A systematic review of major databases and a subsequent meta-analysis were performed to compare clinical outcomes in men with high SDF, oligozoospermia, or prior ICSI failures undergoing T-ICSI or E-ICSI. Thirteen studies met the inclusion criteria. Outcomes analyzed included SDF levels, fertilization rate (FR), clinical pregnancy rate (CPR), live birth rate (LBR) per embryo transfer (ET), and miscarriage rate (MR) per pregnancy. The mean difference (MD) and odds ratio (OR) were calculated for each outcome. Paired assessments of SDF showed significantly lower levels in testicular sperm compared to ejaculated sperm (MD = −25.42 [−31.47, −17.30], p < 0.00001). While no significant difference in FR was observed in T-ICSI cycles overall (OR = 0.94 [0.74, 1.20]), a subgroup analysis revealed significantly higher FR with E-ICSI in men with oligozoospermia and no prior ICSI failures (OR = 0.61 [0.52, 0.71], p < 0.00001). CPR was significantly higher in T-ICSI cycles (OR = 2.13 [1.35, 3.36], p < 0.001; n = 540 ET), along with a significantly lower MR (OR = 0.31 [0.14, 0.70], p = 0.004; n = 35) and increased LBR (OR = 2.40 [1.32, 4.36], p = 0.004; n = 446 ET). In conclusion, using testicular sperm in cases of elevated ejaculate SDF, oligozoospermia, or prior failed ICSI cycles enhances the selection of sperm with lower DNA damage, leading to improved pregnancy rates, reduced miscarriage rates, and higher live birth rates. However, the studies included were rated as having a moderate to serious risk of bias. Further well-designed randomized controlled trials are necessary to confirm these findings with stronger evidence. Full article

Soil salinity is a major global challenge affecting agricultural productivity and food security. This study explores innovative strategies to improve salt tolerance in soybean (Glycine max), a crucial crop in the global food supply. This study investigates the synergistic effects of S-nitroso glutathione (GSNO) and silicon on enhancing salt tolerance in soybean (Glycine max). Two soybean cultivars, Seonpung (salt-tolerant) and Cheongja (salt-sensitive), were analyzed for various physiological, biochemical, and genetic traits under salt stress. The results showed that the combined GSNO and Si treatment significantly improved several key traits, including plant height, relative water content, root development, nodule numbers, chlorophyll content, and stomatal aperture, under both control and salt stress conditions. Additionally, this treatment optimized ion homeostasis by enhancing the Na/K ratio and Ca content, while reducing damage markers such as electrolyte leakage, malondialdehyde, and hydrogen peroxide. The stress-responsive compounds, including proline, ascorbate peroxidase, and water-soluble proteins, were elevated under stress conditions, indicating improved tolerance. Gene expression analysis revealed significant upregulation of genes such as GmNHX1, GmSOS2, and GmAKT1, associated with salt stress response, while GmNIP2.1, GmNIP2.2, and GmLBR were downregulated in both varieties. Notably, the salt-sensitive variety Cheongja exhibited higher electrolyte leakage and oxidative damage compared to the salt-tolerant Seonpung. These findings suggest that the combination of GSNO and silicon enhances salt tolerance in soybean by improving physiological resilience, ion homeostasis, and stress-responsive gene expression. Full article

Human activities, such as reservoir construction and riverbed sand extraction, significantly influence the hydrological and sedimentary dynamics of natural rivers, thereby directly or indirectly affecting river landscape pattern distribution. This study primarily focused on the lower Beijiang River (LBR) in China, an area characterized by intensive human activity. River landscape patterns were studied using historical topographical data and time-series Landsat remote sensing images. Natural and anthropogenic factors were considered to explore the driving forces behind the evolution of landscape patterns. The results indicated that the topography of the LBR underwent significant downcutting from 1998 to 2020. The average elevation of the study area decreased by 3.6 m, and the minimum thalweg elevation decreased by 6.7 m. Over the past 30 years, the local vegetation showed a relatively stable spatial distribution, whereas the area of sand remained relatively stable before 2012, followed by a sudden decline, and tended to stabilize in the last decade. The water area exhibited a gradually increasing trend. The transition maps indicated that the spatial changes in sand were the most significant, with only 39.6% of the sand remaining unchanged from 1998 to 2009 and 32.3% from 2009 to 2020. The corresponding landscape patterns showed that the fragmentation degree of sand increased, with the mean patch size decreasing by 69.2%. The aggregation of water intensified, as its aggregation index increased from 93.31% to 95.41%, while the aggregation of vegetation remained relatively minor, ranging from 89.52% to 90.12%. The annual average temperature, annual average maximum temperature, and annual rainfall days had the strongest correlations with the vegetation landscape pattern indices. Additionally, human activities may have been the primary driver of the landscape pattern evolution of water and sand. The findings of this study have positive implications for the maintenance of the diversity and stability of river ecosystems. Full article