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Research progress of microneedle drug delivery system in the treatment of autoimmune diseases

J Drug Target. 2025 Aug 10:1-36. doi: 10.1080/1061186X.2025.2546477. Online ahead of print.

ABSTRACT

Autoimmune diseases represent a heterogeneous group of disorders characterized by immune system dysregulation, wherein aberrant responses to self-antigens result in cellular and tissue damage. According to statistics, there are over 80 different types of autoimmune diseases worldwide, among which psoriasis and rheumatoid arthritis (RA) are relatively common. Current therapeutic strategies emphasize long-term management to mitigate symptoms and retard disease progression. Conventional approaches, including systemic administration of oral medications, injectables, and biologics, are frequently limited by adverse effects that compromise patient adherence. In contrast, the use of microneedle (MN) technology as a minimally invasive transdermal delivery platform has emerged as a promising alternative, offering distinct advantages such as painless self-administration, enhanced patient compliance, localized delivery to disease-specific sites (e.g., skin lesions in psoriasis, inflamed joints in RA), and improved bioavailability of immunomodulatory agents while minimizing systemic toxicity. This review systematically examines MN classification, immunomodulatory mechanisms, and therapeutic efficacy in autoimmune disease management, while also providing a critical assessment of MN biosafety and clinical translation challenges in autoimmune patients. Furthermore, it highlights recent advancements in MN technology for prevalent autoimmune disorders, with the goal of informing future innovation and accelerating clinical translation.

PMID:40783860 | DOI:10.1080/1061186X.2025.2546477

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Modified scrotoscopic surgery for testicular hydrocele

Zhonghua Nan Ke Xue. 2024 Oct;30(10):910-914.

ABSTRACT

OBJECTIVE: To explore the application of modified scrotoscopic surgery (MSS) in the treatment of testicular hydrocele.

METHODS: We selected 45 cases of testicular hydrocele for this study, 22 treated by traditional scrotoscopic surgery (TSS) and the other 23 by MSS, which was performed with a pin-shaped electrode bent inward at an angle of 60° instead of a circular electrode used in TSS. We recorded the general clinical data, operation time, incision length, intraoperative injury, incision infection, scrotal edema, postoperative hospital stay and postoperative Visual Analogue Scale (VAS) scores of the patients and compared them between the two groups.

RESULTS: There was no statistically significant difference in the general clinical data between the two groups (P > 0.05). Compared with the patients of the TSS group, those of the MSS group showed significantly shorter operative time ([32.86 ± 3.80] vs [26.13 ± 2.81] min, P<0.05), incision length ([14.09 ± 2.23] vs [8.73 ± 1.48] mm, P<0.05) and postoperative hospital stay ([4.36 ± 1.05] vs [2.00 ± 0.90] d, P<0.05), and achieved remarkably lower VAS scores on postoperative days 1 (4.41 ± 1.05 vs 3.09 ± 0.79, P<0.05), 2 (3.36 ± 1.05 vs 2.78 ± 1.13, P<0.05), 3 (2.65 ± 0.72 vs 1.74 ± 0.86, P<0.05) and 7 (1.91 ± 0.81 vs 1.04 ± 0.82, P<0.05). At 3 and 7 days after surgery, scrotal edema was markedly milder in the MSS than in the TSS group (P<0.05). No testicular or epididymal damage, or wound infection occurred in either of the two groups.

CONCLUSION: MSS is safe and effective in the treatment of testicular hydrocele, superior to TSS for its advantages of shorter operation time, smaller surgical incision, less postoperative pain and milder scrotal edema.

PMID:40783855

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Mechanism of lipopolysaccharide inhibiting scrotal wound healing under hypoxic conditions

Zhonghua Nan Ke Xue. 2024 Oct;30(10):903-909.

ABSTRACT

OBJECTIVE: To investigate the effect of lipopolysaccharide (LPS) on the crawling ability of fibroblasts derived from the scrotal skin under hypoxic conditions, its impact on vascular regeneration during wound healing, and the potential mechanism underlying chronic non-healing scrotal wound caused by gram-negative bacterial infection.

METHODS: We extracted peripheral blood buffy coats from healthy donors after venous blood centrifugation, divided them into four groups (normoxia, normoxia+LPS, hypoxia, and hypoxia+LPS) for pretreatment, and isolated the corresponding cultured supernatant. Then we measured the levels of VEGF-A, FGF and IL-8 secreted using enzyme-linked immunosorbent assay (ELISA), determined the cytotoxicity of different pretreated supernatants by lactate dehydrogenase (LDH) release assay, and detected the cell migration ability and vascular formation in human-umbical vein endothelial cells (HUVEC).

RESULTS: Under hypoxic conditions, the expression of HIF-1α was significantly lower in the fibroblasts from the chronic scrotal wound than in the normal fibroblasts (0.09 ± 0.00 vs 0.48 ± 0.01, P < 0.05), the viability of the cells showed no statistically significant difference from that under normoxic conditions (P > 0.05), and the proliferation and migration abilities of the cells were markedly improved ([83.09 ± 2.56]% vs [17.84 ± 1.12]%, P < 0.05). The viability of the scrotal fibroblasts was significantly lower in the normoxia+LPS than in the hypoxia+LPS group ([20.15 ± 1.19]% vs [32.54 ± 1.57]%, P < 0.05). The cells treated with LPS, compared with those in the non-LPS groups, exhibited remarkably decreased endothelial cell tubes formed (5.20 ± 0.15 vs 55.30 ± 1.15, P < 0.05), down-regulated expression of VEGF (OD value: 0.59 ± 0.07 vs 1.25 ± 0.11, P < 0.05) and up-regulated expression of IL-8 (OD value: 2.42 ± 0.07 vs 0.87 ± 0.11, P < 0.05).

CONCLUSION: The supernatant derived from the peripheral blood buffy coats treated with LPS has a stronger cytotoxicity and weaker angiogenesis than that untreated under hypoxic or normoxic conditions, which may be one of the critical factors for difficult healing of scrotal wound.

PMID:40783854

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Different combinations of anesthetics in transperineal prostate biopsy in elderly men: A prospective, randomized, controlled monocentric trial

Zhonghua Nan Ke Xue. 2024 Oct;30(10):896-902.

ABSTRACT

OBJECTIVE: To compare the clinical effects of different combinations of anesthetics in transperineal prostate biopsy in elderly male patients.

METHODS: We randomly divided 132 ≥65-year-old male patients to receive transperineal prostate biopsy under combined intravenous anesthesia with propofol + sufentanil (the PS group), remimazolam + sufentanil (the RS group), propofol + alfentanil (the PA group), or remimazolam + alfentanil (the RA group). We recorded the mean arterial pressure (MAP) and heart rate (HR) of the patients, the required rescue sedation, the Richmond Agitation-Sedation Scale (RASS) scores upon admission into the postanesthesia care unit (PACU) after surgery, the length of stay in the PACU and the incidence of adverse reactions, followed by comparison of the data obtained among the four groups.

RESULTS: Operations were successfully completed in all the patients. At 5 moment points from T3 to t2, RA and RS groups had less effect on MAP than PA and PS groups (P < 0.05); at 5 moment points from T1 to T5, RA and RS groups had less effect on HR than PA and PS groups (P<0.05), and this effect was more obvious in RA group than in RS group.During anesthesia-induction, the incidence rate of injection pain was remarkably lower in the RA and RS than in the PA and PS groups (P<0.05), and that of respiratory depression was higher in the PS than in the other three groups (P = 0.013). The RASS scores were significantly higher (P<0.05) and the PACU stay shorter in the RA and RS than in the PA and PS groups (P<0.05). Dramatically more cases of intraoperative body movement and remedial medication requirement were observed in the former than in the latter two groups (P = 0.013), but there was no statistically significant difference in the dose of remedial medication between the four groups of patients (P > 0.05).

CONCLUSION: For elderly male patients undergoing transperineal prostate biopsy under intravenous anesthesia with preservation of spontaneous breathing, the combined use of remimazolam and alfentanil can achieve more stable intraoperative hemodynamics, faster recovery from anesthesia and a lower incidence of perioperative adverse reactions, and produce an even better anesthetic effect with a small dose of propofol to suppress the body movement at the time of needle puncture.

PMID:40783853

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Psychological status-based early risk warning combined with multidisciplinary team intervention improves satisfaction of the outpatients in the andrology clinic HUANG Xun-mei1, MENG Ping1, LI Hui2, HE Wei-xiang1, MA Xiao-li3, GAO Jing-jing4, XUE Rui-zhi1, CHENG Rui1

Zhonghua Nan Ke Xue. 2024 Oct;30(10):878-883.

ABSTRACT

OBJECTIVE: To investigate the psychological status of the outpatients in the andrology clinic and the effect of risk warning combined with multidisciplinary team (MDT) intervention on their satisfaction.

METHODS: Using convenience sampling, we enrolled 600 outpatients seeking medical attention in the Department of Andrology of our hospital from July to October 2022. We randomized the patients into a control (n = 300) and an observation group (n = 300), obtained their basic information, evaluated their psychological status with the Hospital Anxiety and Depression Scale (HADS), and assessed their satisfaction with the Xijing Hospital Outpatients’ Satisfaction Questionnaire (HOSQ). The controls followed the routine procedure of treatment, while the patients in the observation group received early warning before intervention based on their HADS scores. We provided normal medical care for those with HADS scores ≤ 7, employed empathetic communication for those with HADS scores of 8-10, and conducted MDT intervention for those with HADS scores ≥ 11, followed by comparison of the patients’ satisfaction with the outpatient service between the two groups.

RESULTS: There were no statistically significant differences in general conditions between the groups of patients (P > 0.05). The mean prevalence rate of anxiety and depression was 47.83% among the male subjects, lower in the control than in the observation group (47.00% vs 48.67%, P > 0.05), but higher in the patients with the education of junior high school or below (60.99%) than in those with that of senior high school (22.34%) and university or above (16.67%), and also higher in those aged 18-40 years (67.38%) than in those aged 41-60 years (51.82%) and over 60 years old (38.33%). A significantly higher rate of satisfaction with the outpatient service was found in the observation group than in the controls (97.18% vs 90.39%, P < 0.05).

CONCLUSION: Anxiety and depression are prevalent among the outpatients in the andrology clinic, with a higher prevalence rate in those with lower education and at a younger age. Early risk warning combined with MDT intervention can improve the satisfaction of the patients.

PMID:40783850

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Different diagnostic methods for necrospermia and correlation between the severity of sperm necrosis and sperm DNA fragmentation index

Zhonghua Nan Ke Xue. 2024 Oct;30(10):872-877.

ABSTRACT

OBJECTIVE: To assess the value eosin-nigrosine (E-N) staining and hypo-osmotic swelling test (HOST) in the diagnosis of necrospermia and investigate the correlation of the degree of sperm necrosis with sperm DNA fragmentation index (DFI) and high DNA stainability (HDS).

METHODS: Using computer-assisted sperm analysis (CASA), we examined the sperm motility of 7 333 males seeking medical care in Maternal and Child Health Hospital of Hunan Province from May 2023 to July 2024, detected the sperm viability of those with asthenozoospermia by E-N staining and HOST, and measured the sperm DFI and HDS of those with necrospermia by sperm chromatin structure assay (SCSA). Based on sperm progressive motility (PR%), we divided the asthenozoospermia patients into three groups (PR% 20%-<30%, PR% 10%-<20% and PR% <10%), assessed the value of E-N staining and HOST in the diagnosis of necrospermia, and analyzed the correlation of the severity of sperm necrosis with sperm DFI and HDS.

RESULTS: Asthenozoospermia was diagnosed in 1 374 (18.74%) of the 7 333 males. The incidence rates of necrospermia revealed by E-N staining in the mild, moderate and severe asthenozoospermia groups were 0.55% (5/913), 3.80% (12/316) and 35.86% (52/145), respectively, with a total incidence of 0.94% (69/7333), while those detected by HOST were 0.99% (9/913), 6.96% (22/316) and 46.21%(67/145), respectively, with a total incidence of 1.34% (98/7333). There were no statistically significant differences in the results of diagnosis between the two methods (χ2 = 0.97, P > 0.05). Both E-N staining and HOST showed that sperm DFI in the necrospermia males was negatively correlated with sperm viability (r =-0.366, r=-0.333, P < 0.05), and so was sperm HDS, though with no statistically significant difference (P > 0.05).

CONCLUSION: For males with PR% <30%, sperm viability test should be conducted, with E-N staining as the choice of priority for the diagnosis of necrospermia. Sperm necrosis and sperm nuclear chromatin damage may be interactive risk factors.

PMID:40783849

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Design, Optimization and In Vivo Evaluation of Tazarotene Loaded Emulgel Formulation for the Treatment of Acne

J Drug Target. 2025 Aug 10:1-16. doi: 10.1080/1061186X.2025.2546489. Online ahead of print.

ABSTRACT

Acne vulgaris is a common dermatological disorder with current treatments often limited to poor skin penetration, instability, irritation, and suboptimal therapeutic outcomes. There is a pressing need for advanced drug delivery systems that can overcome these challenges and enhance treatment efficacy. In this context, the current research was undertaken to develop and optimize a novel tazarotene-loaded emulgel formulation that merges the advantages of emulsions and gels to achieve controlled drug release, improved stability, and superior clinical performance for topical acne therapy. The formulation was prepared using the incorporation method and optimized through the Box-Behnken statistical design (BBD). Three independent variables, such as Carbopol 940 (X1), Span 80 (X2), and Tween 80 (X3), were assessed for their effects on drug release (Y1) and viscosity (Y2). The optimized formulation exhibited desirable characteristics, including pH: 6.6 ± 0.3, viscosity: 28,945 cPs, spreadability: 6.17 ± 0.02 cm2, extrudability: 18 ± 2.49 gm/cm2, and drug content: 85.46 ± 4.02%. In vitro drug release studies demonstrated 87.59 ± 2.6% drug release over 7 hours. A skin irritation test on mice confirmed its dermatological safety, with no signs of erythema or edema. Anti-acne efficacy was evaluated using a Propionibacterium acnes-induced murine model, where the optimized emulgel significantly reduced acne lesion size from 4.5 mm to 0 mm, compared to a marketed gel, which reduced lesions from 4.6 mm to 2.3 mm. These results highlight the tazarotene-loaded emulgel as a promising and safe topical treatment for acne, offering superior efficacy over marketed formulations.

PMID:40783846 | DOI:10.1080/1061186X.2025.2546489

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Sertraline hydrochloride combined with compound chamomile lidocaine gel for the treatment of premature ejaculation

Zhonghua Nan Ke Xue. 2024 Sep;30(9):809-812.

ABSTRACT

OBJECTIVE: To investigate the effect of sertraline hydrochloride combined with compound chamomile lidocaine gel in the treatment of premature ejaculation (PE).

METHODS: We selected 80 cases of PE treated in our hospital from June 2021 to May 2023 and equally randomized them into a control and an observation group, the former medicated with compound chamomile lidocaine gel while the latter with sertraline hydrochloride in addition, both for 6 weeks. We recorded and compared the intravaginal ejaculation latency time (IELT), the number of successful sexual intercourses per week, the Premature Ejaculation Diagnostic Tool (PEDT) scores, and the incidence of adverse reactions between the two groups of patients.

RESULTS: After the treatment, the IELT was significantly longer ([5.39 ± 1.17] vs [2.49 ± 0.73] min, P< 0.05), the weekly number of successful sexual intercourses remarkably higher (1.82 ± 0.45 vs 0.93 ± 0.19, P< 0.05) and the PEDT scores markedly lower (7.42 ± 2.04 vs 9.85 ± 2.36, P< 0.05) in the observation than in the control group, but no statistically significant differences were observed in the baseline PEDT scores or the incidence of adverse reactions between the two groups (P> 0.05).

CONCLUSION: Sertraline hydrochloride combined with compound chamomile lidocaine gel is definitely effective in the treatment of PE, which can significantly improve the patients’ quality of sexual life, with a high safety and low incidence of adverse reactions.

PMID:40783833

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Safety and efficacy of robot-assisted technology in severe complex and non-severe spinal deformity correction: a retrospective comparative study

J Orthop Surg Res. 2025 Aug 9;20(1):753. doi: 10.1186/s13018-025-06158-4.

ABSTRACT

BACKGROUND: Surgical correction of severe complex spinal deformities (SCD) poses significant technical challenges and carries a high risk of neurological complications. In recent years, robot-assisted (RA) technology has been increasingly adopted in spinal surgery, with theoretical advantages in enhancing surgical precision and safety, particularly in anatomically complex cases. However, its clinical outcomes in the correction of SCD have not been thoroughly evaluated.

METHODS: A retrospective analysis was conducted on patients who underwent RA scoliosis correction surgery between January 2021 and April 2024. Patients were classified into non-severe deformities (NSD) and SCD groups based on the criteria of Cobb angle > 80°, flexibility < 25%, or focal kyphosis > 90°. Demographic data, surgical parameters, and imaging outcomes were collected and compared between the two groups. Primary outcomes included pedicle screw placement accuracy, major curve correction rates, operative time, intraoperative blood loss, hospital stay, and postoperative complications. A p-value < 0.05 was considered statistically significant.

RESULTS: A total of 38 patients were included (NSD: 21, SCD: 17). No significant differences were observed between the groups in terms of age, sex distribution, BMI, or major curve region (p > 0.05). The SCD group exhibited significantly greater preoperative Cobb angles (93.69° ± 23.20° vs. 51.05° ± 14.33°, p < 0.0001) and kyphosis angles (102.65° ± 36.52° vs. 37.77° ± 21.57°, p < 0.0001) compared to the NSD group. There were no significant differences between the groups in the number of screws placed (18.35 ± 7.00 vs. 16.86 ± 7.77, p = 0.5414), operative time (277.35 ± 68.81 min vs. 247.00 ± 80.40 min, p = 0.2256), intraoperative blood loss (379.41 ± 241.78 ml vs. 319.05 ± 197.15 ml, p = 0.4019), or transfusion rates (23.53% vs. 23.81%, p = 1.0000). However, the SCD group had significantly longer hospital stays compared to the NSD group (27.65 ± 9.64 days vs. 21.19 ± 7.24 days, p = 0.0239). The complication rates were similar between the two groups (5.88% vs. 4.76%, p = 1.0000). Although the perfect screw placement rate in the SCD group was slightly lower than in the NSD group, the difference was not statistically significant (90.60% ± 4.90% vs. 92.18% ± 6.29%, p = 0.3997). Major curve correction rates also showed no significant difference between the groups (66.34% ± 19.91% vs. 71.05% ± 16.08%, p = 0.5134).

CONCLUSION: This study demonstrates that RA technology achieves comparable pedicle screw placement accuracy and major curve correction rates in SCD patients relative to NSD patients, with no significant increase in complication rates. However, SCD patients may require longer hospital stays. These findings suggest that RA technology is a safe and effective strategy for SCD management, though broader implementation requires validation through larger prospective trials. Further large-scale, prospective studies are warranted to validate these results.

PMID:40783770 | DOI:10.1186/s13018-025-06158-4

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Trends in the prevalence and intensity of soil-transmitted helminth (STH) infection in Ethiopia 2000 to 2023: a systematic review

Parasit Vectors. 2025 Aug 9;18(1):340. doi: 10.1186/s13071-025-06928-3.

ABSTRACT

BACKGROUND: Soil-transmitted helminths (STH) are a source of parasitic infections common in Ethiopia and cause stunting of growth and neurodevelopment. The aim of this review was to examine the trends in STH prevalence and intensity in Ethiopia by year, age group, and region over a period of more than two decades.

METHODS: A comprehensive literature review using predefined terms was conducted in PubMed, Scopus, and Web of Science. The relevant studies were screened and reviewed, and the data were extracted and recorded in an Excel spreadsheet. A random-effects model was employed to determine the pooled prevalence. Prevalence estimates and their standard errors were extracted for each period, and pairwise comparisons of estimates between consecutive periods were performed, with P-values computed to assess the statistical significance in the changes recorded.

RESULTS: A total of 310 studies published from 2000 to 2023, focused on STHs in Ethiopia, were included in the analysis. Of these, 298 focused on Ascaris lumbricoides, 250 on Trichuris trichiura, and 278 on hookworms. The majority of studies were conducted in the Amhara region (43.5%), followed by Oromia (26.1%). The overall prevalence of A. lumbricoides decreased from 13.8% (95% confidence interval [CI] 11.5%, 16.8%) before 2015 to 9.4% (95% CI 6.8%, 13.1%) after 2020, with a notable change observed between 2015 and 2019. In contrast, the prevalence of T. trichiura and hookworms did not show a significant change.

CONCLUSIONS: Progress has been made in reducing the prevalence and intensity of A. lumbricoides, but there is still some way to go, which will require higher mass drug administration (MDA) coverage levels plus treatment of the whole community including adults, alongside water, sanitation, and hygiene (WaSH) interventions to prevent persistent reinfection.

PMID:40783768 | DOI:10.1186/s13071-025-06928-3