Dihydroartemisinin alleviates erosive bone destruction by modifying local Treg cells in inflamed joints: A novel role in the treatment of rheumatoid arthritis.

Treg cell-based therapy has exhibited promising efficacy in combatting rheumatoid arthritis (RA). Dihydroartemisinin (DHA) exerts broad immunomodulatory effects across various diseases, with its recent spotlight on T-cell regulation in autoimmune conditions. The modulation of DHA on Treg cells and its therapeutic role in RA has yet to be fully elucidated. This study seeks to unveil the influence of DHA on Treg cells in RA and furnish innovative substantiation for the potential of DHA to ameliorate RA. To this end, we initially scrutinized the impact of DHA-modulated Treg cells on osteoclast (OC) formation in vitro using Treg cell-bone marrow-derived monocyte (BMM) coculture systems. Subsequently, employing the collagen-induced arthritis (CIA) rat model, we validated the efficacy of DHA and probed its influence on Treg cells in the spleen and popliteal lymph nodes (PLN). Finally, leveraging deep proteomic analysis with data-independent acquisition (DIA) and parallel accumulation-serial fragmentation (PASEF) technology, we found the alterations in the Treg cell proteome in PLN by proteomic analysis. Our findings indicate that DHA augmented suppressive Treg cells, thereby impeding OC formation in vitro. Consistently, DHA mitigated erosive joint destruction and osteoclastogenesis by replenishing splenic and joint-draining lymph node Treg cells in CIA rats. Notably, DHA induced alterations in the Treg cell proteome in PLN, manifesting distinct upregulation of alloantigen Col2a1 (Type II collagen alfa 1 chain) and CD8a (T-cell surface glycoprotein CD8 alpha chain) in Treg cells, signifying DHA's targeted modulation of Treg cells, rendering them more adept at sustaining immune tolerance and impeding bone erosion. These results unveil a novel facet of DHA in the treatment of RA.

Clinical observation on inverted T-shaped herb-separated moxibustion for chronic pelvic pain in sequelae of pelvic inflammatory diseases. / 倒Tå­—å½¢éš”è¯ç¸æ²»ç–—ç›†è ”ç‚Žæ€§ç–¾ç— åŽé—ç—‡æ ¢æ€§ç›†è ”ç—›ç–—æ•ˆè§‚å¯Ÿ.

OBJECTIVES: To compare the clinical effect between inverted T-shaped herb-separated moxibustion combined with western medication and simple western medication on chronic pelvic pain(CPP)in sequelae of pelvic inflammatory diseases. METHODS: A total of 60 patients with CPP in sequelae of pelvic inflammatory diseases were randomly divided into an observation group and a control group, 30 cases in each group. The control group was given ibuprofen tablets 10 days before menstruation, 0.2 g each time, once a day for 10 days. After menstruation, the medication was stopped, and the treatment was given for 3 menstrual cycles.On the basis of the treatment in the control group, the observation group was treated with inverted T-shaped herb-separated moxibustion at the connection between Zhongwan(CV 12)and Zhongji(CV 3), and the connection between Zigong(EX-CA 1)on both sides.The treatment was performed once a week, with an interval of 6 days. The moxibustion was stopped during the menstrual period, the treatment was given for 3 menstrual cycles.Before and after treatment, the visual analogue scale(VAS)score of lower abdominal and lumbosacral pain, local symptom (uterine tenderness, adnexal tenderness and uterosacral ligament tenderness) score and quality of life assessment (QOL) score of the two groups were observed. RESULTS: After treatment, the lower abdominal and lumbosacral pain VAS scores, the local symptom scores of uterine tenderness, adnexal tenderness, uterosacral ligament tenderness and total scores in the two groups were lower than those before treatment(P<0.01).The lower abdominal and lumbosacral pain VAS score in the observation group was lower than that in the control group(P<0.01),and the changes of local symptom scores of uterine tenderness, adnexal tenderness and uterosacral ligament tenderness and total score in the observation group were greater than those in the control group(P<0.01). After treatment, the QOL scores of the two groups were higher than those before treatment(P<0.01), and the score in the observation group was higher than that in the control group(P<0.01). CONCLUSIONS: Inverted T-shaped herb-separated moxibustion combined with western medication can effectively reduce the pain in patients with CPP in sequelae of pelvic inflammatory diseases, relieve the local symptoms, improve the quality of life, and the curative effect is better than western medication alone.

Corrigendum: A biophoton method for identifying the quality states of fresh Chinese herbs.

[This corrects the article DOI: 10.3389/fphar.2023.1140117.].

A biophoton method for identifying the quality states of fresh Chinese herbs.

Introduction: The quality of Chinese herbs is the basis for ensuring their safety and efficacy. However, the quality evaluation system is imperfect. In particular, there is a lack of quality evaluation methods for fresh Chinese herbs during growth. The biophoton is a common phenomenon and provides complete information about the interior of the living system, which is consistent with the holistic concept of traditional Chinese medicine. Therefore, we aim to correlate the biophoton characteristics with the quality states to find the biophoton parameters that can characterize the quality states of fresh Chinese herbs. Methods: The biophoton characteristics of motherwort and safflower were measured and characterized by the counts per second (CPS) in the steady state and the initial intensity (I0) and coherent time (T) of delayed luminescence. The active ingredient content was measured by ultra-high-performance liquid chromatography (UPLC). The pigment content of motherwort leaves was measured by UV spectrophotometry. The t-test and correlation analysis were performed on the experimental results. Results: The CPS and I0 of motherwort and I0 of safflower showed a significant downward trend during the growth process, and their active ingredient content showed a trend that increased and then decreased. The CPS, I0, and the content of active ingredients and pigments in a healthy state were significantly higher than those in a poor state, while T showed the opposite results. The CPS and I0 were all significantly and positively correlated with the content of active ingredients and pigments, while the T of motherwort showed the opposite results. Conclusion: It is feasible to identify the quality states of fresh Chinese herbs by using their biophoton characteristics. Both CPS and I0 have better correlations with the quality states and can be considered characteristic parameters of the quality of fresh Chinese herbs.

The application and trend of ultra-weak photon emission in biology and medicine.

Ultra-weak bioluminescence, also known as ultra-weak photon emission (UPE), is one of the functional characteristics of biological organisms, characterized by specialized, low-energy level luminescence. Researchers have extensively studied UPE for decades, and the mechanisms by which UPE is generated and its properties have been extensively investigated. However, there has been a gradual shift in research focus on UPE in recent years toward exploring its application value. To better understand the application and trend of UPE in biology and medicine, we have conducted a review of relevant articles in recent years. Among the several topics covered in this review is UPE research in biology and medicine (including traditional Chinese medicine), primarily focused on UPE as a promising non-invasive tool for diagnosis and oxidative metabolism monitoring as well as a potential tool for traditional Chinese medicine research.

Mechanisms by which kidney-tonifying Chinese herbs inhibit osteoclastogenesis: Emphasis on immune cells.

The immune system plays a crucial role in regulating osteoclast formation and function and has significance for the occurrence and development of immune-mediated bone diseases. Kidney-tonifying Chinese herbs, based on the theory of traditional Chinese medicine (TCM) to unify the kidney and strengthen the bone, have been widely used in the prevention and treatment of bone diseases. The common botanical drugs are tonifying kidney-yang and nourishing kidney-yin herbs, which are divided into two parts: one is the compound prescription of TCM, and the other is the single preparation of TCM and its active ingredients. These botanical drugs regulate osteoclastogenesis directly and indirectly by immune cells, however, we have limited information on the differences between the two botanical drugs in osteoimmunology. In this review, the mechanism by which kidney-tonifying Chinese herbs inhibiting osteoclastogenesis was investigated, emphasizing the immune response. The differences in the mechanism of action between tonifying kidney-yang herbs and nourishing kidney-yin herbs were analysed, and the therapeutic value for immune-mediated bone diseases was evaluated.

Novel Application of Eupatilin for Effectively Attenuating Cisplatin-Induced Auditory Hair Cell Death via Mitochondrial Apoptosis Pathway.

Eupatilin (5,7-dihydroxy-3',4',6-trimethoxyflavone) is a pharmacologically active flavone that has been isolated from a variety of medicinal plants and possesses a number of pharmacological properties. This study evaluates the antioxidant and antiapoptotic effects of eupatilin on cisplatin-induced ototoxicity using in vitro and in vivo models including HEI-OC1 cells, cochlear hair cells, and zebrafish. Employing a CCK8 assay and Annexin V-FITC/PI double staining, we found that eupatilin significantly alleviated cisplatin-induced apoptosis and increased hair cell viability. The level of reactive oxygen species (ROS) was evaluated by CellROX green and MitoSOX Red staining. The results showed that eupatilin possesses antioxidant activity. MitoTracker Red staining indicated that eupatilin remarkably decreased mitochondrial damage. Furthermore, we demonstrated that eupatilin protects hair cells from cisplatin-induced damage. Mechanistic studies in cisplatin-induced HEI-OC1 cells revealed that eupatilin promoted Bcl-2 expression, downregulated Bax expression, reversed the increase in caspase-3 and PARP activity, and reduced the expression of phosphorylated p38 and JNK. Our data suggest a novel role for eupatilin as a protective agent against ototoxic drug-induced hair cell apoptosis by inhibiting ROS generation and modulating mitochondrial-related apoptosis.

Acupuncture for nasal congestion in COVID-19: A protocol for systematic review and meta-analysis.

BACKGROUND: From the end of 2019 to now, coronavirus disease 2019 (COVID-19) has put enormous strain on the world's health systems, causing significant deaths and economic losses worldwide. Nasal congestion, one of the symptoms of COVID-19, poses considerable problems for patients. In China, acupuncture has been widely used to treat nasal congestion caused by COVID-19, but there is still a lack of evidence-based medical evaluation. METHODS: According to the retrieval strategies, randomized controlled trials on the acupuncture for COVID-19 nasal congestion were obtained from China National Knowledge Infrastructure, WanFang, VIP, PubMed, Embase, and Cochrane Library, regardless of publication date, or language. Studies were screened based on inclusion and exclusion criteria, and the Cochrane risk bias assessment tool was used to evaluate the quality of the studies. The meta-analysis was performed using Review Manager (RevMan 5.3) and STATA 14.2 software. Ultimately, the evidentiary grade for the results will be evaluated. RESULTS: The study will provide a high-quality and convincing assessment of the efficacy and safety of acupuncture in the treatment of COVID-19's nasal congestion and will be published in peer-reviewed journals. CONCLUSION: Our findings will provide references for future clinical decision and guidance development. PROSPERO REGISTRATION NUMBER: NO.CRD42021299482.

Efficacy and safety of moxibustion for benign prostatic hyperplasia: A protocol of systematic review and meta-analysis.

BACKGROUND: Benign prostatic hyperplasia (BPH) is a non-malignant enlargement of the prostate gland that is common in older men. The clinical manifestations of BPH are frequent urination, urgency, incomplete dribbling of urine, and urinary retention. Moxibustion, as a convenient, safe and effective method, has been widely applied in the clinical treatment of BPH. The study aim to assess the efficacy and safety of moxibustion for BPH. METHODS: The following electronic databases will be searched regardless of language and publication status: Pubmed, MEDLINE, EMBASE, China Biomedical Database, China National Knowledge Infrastructure, VIP Database, and Wanfang Database, to select studies that meet the requirements. The study will consist of a prospective randomised controlled clinical trials (RCTs) of moxibustion in the treatment of BPH, language of publication does not have barrier of blinding or restrictions, adverse events will be assessed and reported for safety assessment. Two reviewers will independently conduct and screen all included studies and the meta-analysis will be performed with RevMan V5.3. RESULTS: The study will provide a high-quality convincing assessment of efficacy and safety of moxibustion for BPH. CONCLUSION: The conclusion of this study will provide the latest evidence for judging whether moxibustion is effective and safe in the treatment of BPH. TRIAL REGISTRATION NUMBER: INPLASY2021120021.

Inhibition of Experimental Age-Related Macular Degeneration by ZQMT in Mice.

BACKGROUND: Age-related macular degeneration (AMD) is a progressive and irreversible eye disease. The anti-vascular endothelial growth factor (VEGF) therapy has revolutionized the treatment of neovascular AMD. However, the expense for such treatment is quite high. METHODS: We used a traditional Chinese medicine ZQMT as an alternative therapeutic regimen for AMD. We employed two in vivo animal models mimicking dry and wet AMD respectively to assess the therapeutic efficacy of ZQMT on treating AMD-related retinopathy. AMD-related retinopathy in Crb1rd8 mice was evaluated from week 1 to 8 by fundus photography. Laser-induced choroidal neovascularization (CNV) was evaluated by fluorescein angiography and histopathology. RESULTS: ZQMT increased CX3CR1 expression in murine CD4+ T cells either cultured in vitro or directly isolated from animals treated with ZQMT. We also performed both in vitro and in vivo studies to confirm that ZQMT has no apparent toxic effects. ZQMT alleviated AMD-related retinopathy in both Crb1rd8 and CNV models. Depletion of CCL2 and CX3CR1 in Crb1rd8 mice abolished the efficacy of ZQMT, suggesting that CCL2 and/or CX3CR1 may underlie the mechanisms of ZQMT in treating AMD-related retinopathy in mice. CONCLUSION: In summary, our study supports the protective roles of a traditional Chinese medicine ZQMT in AMD.

Effects of Huangban Bianxing One decoction combined with ranibizumab on treating exudative age-related macular degeneration.

OBJECTIVE: To evaluate the clinical efficacy and safety of Chinese medicine formula Huangban Bianxing One decoction (HBOD) combined with ranibizumab for treating exudative age-related macular degeneration (AMD) patients. METHODS: Totally 75 cases with exudative AMD (75 eyes) were enrolled in this study and randomly divided into two groups to receive either HBOD with ranibizumab or only ranibizumab. Early treatment diabetic retinopathy study (ETDRS) letters for the best corrected visual acuity, center macular thickness (CMT), height of the lesion, fundus hemorrhage area, fundus fluorescein leakage area as the main outcomes and safety indexes were estimated and compared before and after treatment for 3 or 6 months. RESULTS: Comparing with the before treatment, ETDRS letter scores of both groups after treatment at month 3 obtained a greater improvement (P < 0.05), but the significant improvement only existed in the HBOD+ranibizumab group at month 6 (P < 0.01), and better than the ranibizumab group (P < 0.05). At month 3, the CMT and lesion height of both groups were significantly lower than those before treatment (P < 0.01 or P < 0.05) and the HBOD + ranibizumab group had a similar result at month 6 (P < 0.01). The hemorrhage area and fluorescein leakage area of the HBOD+ranibizumab group were also significantly reduced and also smaller than those of the ranibizumab group at month 6 (P < 0.01 or P < 0.05). During treatment, no significant adverse events relating to HBOD or ranibizumab treatment were elucidated. CONCLUSION: HBOD combined with ranibizumab can improve visual acuity and reduce hemorrhage and fluorescein leakage of patients with exudative AMD. These results also indicated that HBOD may function as an effective and safe adjuvant drug for exudative AMD.

Protective Effect of Tang Wang One Decoction on the Retinal Vessels of Diabetic Rats.

Objective. This study aimed to determine the influence of Tang Wang One Decoction (TWOD) on the retinal vessels of diabetic rats. Methods. The hemorheology of diabetic rats was observed. Morphological studies of retinal vessels were conducted using optical microscopy and electron microscopy. Immunological histochemistry assay was used to measure the expression levels of MMP-9, occludin, and claudin-5. Results. Obvious pathological damage was observed in the retinal vessels of diabetic rats. TWOD positively affected the hemorheology and morphology of retinal vessels. The decoction also decreased the expression of MMP-9 and increased the expression of occludin and claudin-5. Conclusions. The results suggest that the retinal protective effects of TWOD might be related to downregulation of MMP-9 and upregulation of occludin and claudin-5.

Chinese medicine formula HB01 for treating exudative age-related macular degeneration: a 6 consecutive months of clinical observation study.

OBJECTIVE: To evaluate the clinical efficacy of Chinese medicine formula HB01 on exudative age-related macular degeneration (AMD) patients who received HB01 for 6 months by analyzing relative indexes. METHODS: From July 2006 to August 2015, 139 eligible exudative AMD patients (183 eyes) were enrolled into this study and received aqueous extract from herbs of HB01 by oral twice a day (100 mL for once) for 6 months. The best corrected visual acuity, center macular thickness (CMT), hemorrhage area, fluorescein leakage area as the main outcomes were estimated and compared before and after treatment. RESULTS: After 3 and 6 months of treatment, visual acuity obtained a greater improvement (P < 0.01). After 1, 3 and 6 months of treatment, CMT obviously decreased (P < 0.05). After 3 and 6 months of treatment, the hemorrhage area and fluorescein leakage area also significantly narrowed (P < 0.01). During treatment, no significant adverse events relating to HB01 treatment were elucidated. CONCLUSION: On the basis of these results, HB01 could improve visual acuity, and reduce hemorrhage and fluorescein leakage of patients with exudative AMD, which may be an effective alternative and supportive treatment for exudative AMD.

Event-specific detection of transgenic potato AV43-6-G7 using real-time and digital PCR methods.

BACKGROUND: The isolation of unknown DNA sequences flanked by known sequences is an important task in the event-specific detection of GMOs. None of event-specific detection method was developed based on the junction sequence of an exogenous integrant in the transgenic potato AV43-6-G7. RESULTS: The flanking sequence between the exogenous fragment and recombinant chromosome of this potato was successfully acquired through exogenous gene 5'-RACE. The event-specific primers and Taqman probe were designed to amplify fragments spanning the exogenous DNA and potato genomic DNA. The specific real-time PCR and digital PCR detection methods for AV43-6-G7 potato were established based on primers designed according to the flanking sequences. The detection limit of the qualitative PCR assay was 0.01 % for AV43-6-G7 potato in 100 ng of potato genomic DNA, corresponding to approximately 11.6 copies of the potato haploid genome. The ddPCR assays for Potato AV43-6-G7 achieved a limit of quantification of approximately 58 target copies, with RSD ≤ 25 %. The aLOQ of this system was approximately 1.2 copies. CONCLUSIONS: These results indicated that these event-specific methods would be useful for the identification of potato AV43-6-G7.

Comparative profiling of gene expression in Camellia sinensis L. cultivar AnJiBaiCha leaves during periodic albinism.

The AnJiBaiCha albino mutant tea cultivar has a reversible albino phenotype at low temperatures. Albino AnJiBaiCha leaves contain high levels of amino acids, which are important components affecting the quality of tea as a beverage. To examine the molecular mechanism of albinism and amino acid enrichment in AnJiBaiCha, we used the amplified fragment length polymorphism (cDNA-AFLP) technique to isolate genes that are differentially expressed during periodic albinism in AnJiBaiCha. A total of 127 transcript-derived fragments (TDFs) were successfully sequenced; among those, 60 TDFs showed high similarity to sequences with known functions, but 67 TDFs were not similar to any known genes. The identified transcripts include transcription factors, ubiquitination-related genes, chloroplast biogenesis genes, signal transduction genes, stress-related genes, cell cycle genes, and carbohydrate and energy metabolism genes. To validate the cDNA-AFLP results, quantitative real-time PCR was used to confirm the differential expression of six of the identified genes. The cDNA-AFLP and quantitative real-time PCR results correlated well, indicating that the cDNA-AFLP results are reliable. This study provides insights into the molecular mechanisms by which periodic albinism and amino acid accumulation take place in AnJiBaiCha.

[Effect and mechanisms of wenyang yiqi huoxue recipe on the apoptosis of photoreceptor cells in retinal degeneration slow mice].

OBJECTIVE: To observe the effect of Wenyang Yiqi Huoxue Recipe (WYHR) on the apoptosis of photoreceptor cells in retinal degeneration slow (RDS) mice, and to investigate its molecular mechanisms. METHODS: RDS mice were randomly divided into the model group and the Chinese medicine group,and C57BL/6J mice were selected as the normal control group. Each group consisted of 4 female mice and 2 male mice. Mice in the Chinese medicine group were administered with WYHR (10 mg/g) by gastrogavage since mating. Baby mice drunk WYHR decoction instead of drinking water once they were born. The offspring were administrated with low dose WYHR decoction by gastrogavage from the 7th postnatal day, and the dose was increased to that for adult mice from the 21st postnatal day. Physiological saline was administrated to mice in the model group and the normal control group by gastrogavage. At 18, 28 and 48 postnatal days, electroretinogram (ERG) was used to evaluate the retina functional variation, and the apoptotic rate of photoreceptor cells was determined by TUNEL staining. HE staining was performed. The number of photoreceptor cells of the outer nuclear layer was calculated. Furthermore, effect of WYHR on Rhodopsin and basic fibroblast growth factor (bFGF) expression was examined using immunochemical assay. RESULTS: Compared with the model group, a- and b-wave latency and amplitude, as well as the bFGF expression sharply increased in the Max-ERG of the Chinese medicine group (P < 0.05, P < 0.01) at 18 postnatal days. At 28 and 48 postnatal days, a- and b-wave latency and amplitude sharply increased, photoreceptor cell layer numbers of the outer nuclear layer obviously increased, the apoptosis rate of retinal photoreceptor cells obviously decreased, expressions of Rhodopsin and bFGF in the Chinese medicine group significantly increased (P < 0.05, P < 0.01). CONCLUSION: WYHR could effectively inhibit the apoptosis of photoreceptor cells in RDS mice, which might be attributed to up-regulating bFGF expression.