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Wang S, Zhou H, Cui W, Zhang J, Wu D, Zhang N, Xu X. Qi Wei Anti-burn Tincture Remodels Liver Metabolic Pathways and Treats Burn Wounds Efficiently. J Burn Care Res 2024; 45:916-925. [PMID: 36402740 DOI: 10.1093/jbcr/irac175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Indexed: 02/17/2024]
Abstract
This work aims to elucidate the molecular mechanism of Qi Wei anti-burn Tincture (QW) on wound healing in burnt mice using metabolomics and molecular biology techniques. A scald model was first established in Kunming mice. After treatment, biochemical indicators for liver function and burnt skin tissues were then evaluated via biochemical detection and HE staining, respectively. Liver tissues were further analyzed for differential metabolites, inflammatory factors, and mRNA levels of cytokines using metabolomics and molecular biology techniques. Involved metabolic pathways were also identified using software. QW treatment did promote the healing of the burn wounds in Kunming mice with a downregulation of ALP, ALT, and AST to normal levels. In mouse liver tissue, the contents of glutamine, aspartic acid, and citrulline were significantly reduced, while the contents of 5-hydroxyproline, taurine, hypotaurine, and glutamic acid significantly increased. These major differential compounds are involved in the arginine metabolic pathway, nitrogen excretion, and the metabolism of taurine and hypotaurine, suggesting that QW reprogramed the above metabolic processes in the liver. Furthermore, the application of QW increased the expression of TGF-β1 and FGF-2 and reduced the levels of TNF-α, IL-1β, IL-6, and reactive oxygen species in the liver of mice induced by burn injury. This study found that QW treatment promoted metabolic pathway remodeling in the liver, which might be a potential mechanism for QW to treat burn wounds.
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Affiliation(s)
- Shuai Wang
- The First People's Hospital of Zhengzhou, P. R. China
| | - Hui Zhou
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
| | - Weiqi Cui
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
| | - Junwei Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
| | - Deqiao Wu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
| | - Nan Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
| | - Xia Xu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, School of Pharmaceutical Sciences, Zhengzhou University, P. R. China
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Mirmotahari SA, Aliomrani M, Hassanzadeh F, Sirous H, Rostami M. Hybrid derivatives containing dimethyl fumarate and benzothiazole scaffolds for the potential treatment of multiple sclerosis; in silico & in vivo study. Daru 2024:10.1007/s40199-024-00529-8. [PMID: 39106020 DOI: 10.1007/s40199-024-00529-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 06/30/2024] [Indexed: 08/07/2024] Open
Abstract
BACKGROUND Multiple Sclerosis (MS) is a chronic autoimmune, inflammatory neurological disease of the CNS. Riluzole and dimethyl fumarate (DMF) are two FDA-approved drugs to treat amyotrophic lateral sclerosis (ALS) and MS. Riluzole (a benzothiazole derivative) inhibits glutamate release from nerve terminals by antagonizing the N-Methyl-D-Aspartate (NMDA) receptor, and DMF upregulates anti-oxidative pathways. OBJECTIVES Herein, using molecular hybridization strategy, we synthesized some new hybrid structures of Riluzole and DMF through some common successive synthetic pathways for evaluating their potential activity for remyelination in MS treatment. METHODS Molecular docking experiments assessed the binding affinity of proposed structures to the NMDA active site. The designed structures were synthesized and purified based on well-known chemical synthesis procedures. Afterward, in vivo evaluation for their activity was done in the C57Bl/6 Cuprizone-induced demyelination MS model. RESULTS AND CONCLUSION The proposed derivatives were recognized to be potent enough based on docking studies (ΔGbind of all derivatives were -7.2 to -7.52 compare to the Ifenprodil (-6.98) and Riluzole (-4.42)). The correct structures of desired derivatives were confirmed using spectroscopic methods. Based on in vivo studies, D4 and D6 derivatives exhibited the best pharmacological results, although only D6 showed a statistically significant difference compared to the control. Also, for D4 and D6 derivatives, myelin staining confirmed reduced degeneration in the corpus callosum. Consequently, D4 and D6 derivatives are promising candidates for developing new NMDA antagonists with therapeutic value against MS disorders.
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Affiliation(s)
- Seyedeh Azin Mirmotahari
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R., Iran
| | - Mehdi Aliomrani
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Farshid Hassanzadeh
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R., Iran
| | - Hajar Sirous
- Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R., Iran
| | - Mahboubeh Rostami
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R., Iran.
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Shen Z, Ma N, Xu J, Wang T. Metal-ion-controlled hydrogel dressing with enhanced adhesive and antibacterial properties for accelerated wound healing. Mater Today Bio 2024; 26:101039. [PMID: 38596825 PMCID: PMC11002314 DOI: 10.1016/j.mtbio.2024.101039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024] Open
Abstract
In order to improve the wound repair environment, this research has successfully developed a new multifunctional hydrogel dressing, which has strong adaptability and can accelerate wound healing. Pioneering the development of metal-ion-controlled hydrogel dressings, this research integrates dopamine and imidazole double crosslinked networks with metal-ion coordination. The resulting hydrogel dressing exhibits a notable antibacterial effect and exceptional mechanical properties, withstanding pressures of up to 12 kPa, tensions of 25 kPa, and maintaining skin adhesion at 6 kPa. Furthermore, the dressing can self-heal within only 7-8 s post-injection. Impressively, the hydrogel achieves complete biodegradation within a short timeframe (37 h). Notably, the use of various metal ions facilitates painless peeling during the degradation period, perfectly aligning with the requirements of an ideal wound dressing. This study has made significant progress in the fields of trauma repair and materials, providing strong solutions for dealing with harsh post-traumatic environments.
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Affiliation(s)
- Zihao Shen
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
| | - Ningyi Ma
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
| | - Juan Xu
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Haidian District, No. 12, Da Hui Si Road, Beijing, 100081, China
- National Research Institute for Family Planning, Haidian District, No. 12, Da Hui Si Road, Beijing, 100081, China
| | - Ting Wang
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, China
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Elgendy DI, Elmahy RA, Amer AIM, Ibrahim HA, Eltantawy AF, Mansour FR, Salama AM. Efficacy of artemether against toxocariasis in mice: parasitological and immunopathological changes in brain, liver, and lung. Pathog Glob Health 2024; 118:47-64. [PMID: 37978995 PMCID: PMC10769145 DOI: 10.1080/20477724.2023.2285182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
Toxocariasis is a zoonosis that represents a serious threat to public health particularly in tropical and subtropical areas. Currently, albendazole, the most effective drug for treating visceral toxocariasis, shows moderate efficacy against the larvae in tissues and has some adverse effects. Artemether is an antiparasitic drug mainly used in the treatment of malaria and showed effectiveness against numerous helminthic infections. Besides, it possesses potent anti-inflammatory, antiapoptotic, antifibrotic, and neuroprotective properties. Thus, the study's aim was to investigate artemether's effects in comparison with albendazole on the therapeutic outcome of experimental toxocariasis. For this aim, 140 laboratory-bred mice were divided into four main groups: uninfected control, treatment control, albendazole-treated, and artemether-treated groups. The treatment regimens were started at the 15th dpi (early treatment), and at the 35th dpi (late treatment). The effectiveness of treatment was determined by brain larval count, histopathological, immunohistochemical, and biochemical examination. Artemether showed more effectiveness than albendazole in reducing brain larval counts, markers of brain injury including NF-κB, GFAP, and caspase-3, the diameter and number of hepatic granulomas, hepatic oxidative stress, hepatic IL-6, and TG2 mRNA, and pulmonary inflammation and fibrosis. The efficacy of artemether was the same when administered early or late in the infection. Finally, our findings illustrated that artemether might be a promising therapy for T. canis infection and it could be a good substitution for albendazole in toxocariasis treatment.
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Affiliation(s)
- Dina I. Elgendy
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Rasha A. Elmahy
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | | | - Hoda A. Ibrahim
- Medical Biochemistry Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Asmaa Fawzy Eltantawy
- Medical Pharmacology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Fotouh Rashed Mansour
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Amina M. Salama
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Ando D, Ozawa A, Sakaue M, Yamamoto E, Miyazaki T, Sato Y, Koide T, Izutsu KI. Fabrication and Characterization of Dissolving Microneedles for Transdermal Drug Delivery of Apomorphine Hydrochloride in Parkinson's Disease. Pharm Res 2024; 41:153-163. [PMID: 37923948 DOI: 10.1007/s11095-023-03621-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/10/2023] [Indexed: 11/06/2023]
Abstract
PURPOSE We fabricated and characterized polyvinyl alcohol (PVA)-based dissolving microneedles (MNs) for transdermal drug delivery of apomorphine hydrochloride (APO), which is used in treating the wearing-off phenomenon observed in Parkinson's disease. METHODS We fabricated MN arrays with 11 × 11 needles of four different lengths (300, 600, 900, and 1200 μm) by micromolding. The APO-loaded dissolving MNs were characterized in terms of their physicochemical and functional properties. We also compared the pharmacokinetic parameters after drug administration using MNs with those after subcutaneous injection by analyzing the blood concentration of APO in rats. RESULTS PVA-based dissolving MNs longer than 600 μm could effectively puncture the stratum corneum of the rat skin with penetrability of approximately one-third of the needle length. Although APO is known to have chemical stability issues in aqueous solutions, the drug content in APO-loaded MNs was retained at 25°C for 12 weeks. The concentration of APO after the administration of APO-loaded 600-μm MNs that dissolved completely in skin within 60 min was 81%. The absorption of 200-μg APO delivered by MNs showed a Tmax of 20 min, Cmax of 76 ng/mL, and AUC0-120 min of 2,829 ng・min/mL, compared with a Tmax of 5 min, Cmax of 126 ng/mL, and AUC0-120 min of 3,224 ng・min/mL for subcutaneous injection. The bioavailability in terms of AUC0-120 min of APO delivered by MNs was 88%. CONCLUSION APO-loaded dissolving MNs can deliver APO via skin into the systemic circulation with rapid absorption and high bioavailability.
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Affiliation(s)
- Daisuke Ando
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan.
| | - Aisa Ozawa
- Laboratory of Anatomy II, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, 252-5201, Japan
| | - Motoharu Sakaue
- Laboratory of Anatomy II, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, 252-5201, Japan
| | - Eiichi Yamamoto
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
- Division of Medical Devices, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Tamaki Miyazaki
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Yoji Sato
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Tatsuo Koide
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Ken-Ichi Izutsu
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
- Department of Pharmaceutical Sciences, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi, 324-8501, Japan
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Jahan I, Ganesan V, Sahu M, Nandave M, Sen S. Adhesivity-tuned bioactive gelatin/gellan hybrid gels drive efficient wound healing. Int J Biol Macromol 2024; 254:127735. [PMID: 37923047 DOI: 10.1016/j.ijbiomac.2023.127735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Gelatin-based hydrogels have been widely used for wound healing applications. However, increase in ligand density and reduction in pore size with increasing gelatin concentration may delay wound healing by limiting cell infiltration. In this study, we address this shortcoming by combining gelatin with gellan-which is super hydrophilic and non-adhesive to cells. We show that UV crosslinked hybrid gels composed of methacrylated gelatin (GelMA) and methacrylated gellan gum (mGG), possess considerably larger pores and improved mechanical properties compared to GelMA gels. Reduced spreading and reduced formation of focal adhesions on hybrid gels combined with lower contractility and faster detachment upon trypsin-induced de-adhesion suggests that hybrid gels are less adhesive than GelMA gels. Gradual release of fibroblast growth factor (FGF) and silver nanoparticles (AgNPs) incorporated in hybrid gels not only boosts cell migration, but also confers anti-bacterial activity against gram-positive and gram-negative bacteria at concentrations nontoxic to cells. Full thickness wound healing in Wistar rats revealed increased granulation tissue formation in hybrid gels, fastest epithelialization and highest collagen deposition in rats treated with FGF entrapped hybrid gels. Together, our results demonstrate how adhesive tuning and incorporation of bioactive factors can be synergistically combined for achieving complete wound healing.
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Affiliation(s)
- Iffat Jahan
- Dept. of Biosciences & Bioengineering, IIT Bombay, India
| | | | - Megha Sahu
- Dept of Pharmacology, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Mukesh Nandave
- Dept of Pharmacology, Delhi Pharmaceutical Sciences and Research University, New Delhi, India.
| | - Shamik Sen
- Dept. of Biosciences & Bioengineering, IIT Bombay, India.
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Sirajo MU, Oyem JC, Badamasi MI. Supplementation with vitamins D3 and a mitigates Parkinsonism in a haloperidol mice model. J Chem Neuroanat 2024; 135:102366. [PMID: 38040269 DOI: 10.1016/j.jchemneu.2023.102366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Earlier reports suggest that vitamin D3 (Vit D3) supplementation attenuates Parkinsonism in drug-induced motor deficits. Moreover, the function of Vit D3 may be optimized by co-administration with vitamin A (Vit A). In line with the synergistic interplay between vitamins, we hypothesized that the efficacy of Vit D3 to attenuate Parkinsonism in a haloperidol-induced mouse model of motor deficits would be more potent when concomitantly administered with Vit A. METHODS Thirty-six (36) adult male mice were randomly divided into six groups of six animals each: the control group, the PD model (haloperidol-treated only group) (-D2), and four other groups treated with haloperidol together with either one or two of the following vitamin supplementations: Vit D3, Vit A, Vit D3 +VA, or bromocriptine a known PD drug respectively. Motor functions were assessed using a battery of neurobehavioral tests in experimental animals, after which brain tissues were harvested and processed for biochemical and histomorphological analysis. RESULTS We recorded a significant decline in motor activity in the PD mice model treated with haloperidol alone compared to other experimental groups that received vitamin supplementations. The significant decrease in motor activity observed in the PD mice model corresponded with marked neurodegenerative features in the cytoarchitecture of the pyramidal cells in the striatum and primary motor cortex (M1). Furthermore, the haloperidol-induced PD mice model treated with Vit D3 +Vit A showed significant improvement in motor activity and attenuation of oxidative stress levels and neurodegenerative features compared to other groups treated with Vit A, Vit D3 and bromocriptine alone. CONCLUSION Altogether, our findings suggest that concomitant administration of both Vit D3 and Vit A prevents the development of Parkinsonism features in the haloperidol mouse model of motor deficit. Thus, supplementation with Vit D3 +Vit A may be a viable option for slowing the onset and progression of motor deficits.
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Affiliation(s)
- Mujittapha Umar Sirajo
- Anatomy Unit, Department of Physiotherapy, School of Basic Medical Sciences, Skyline University, Nigeria; Department of Human Anatomy, Faculty of Basic Medical Science, Bayero University Kano, Nigeria
| | - John C Oyem
- Department of Human Anatomy, Faculty of Basic Medical Science, Novena University Ogume, Delta State, Nigeria
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Tosa M, Abe Y, Egawa S, Hatakeyama T, Iwaguro C, Mitsugi R, Moriyama A, Sano T, Ogawa R, Tanaka N. The HEDGEHOG-GLI1 pathway is important for fibroproliferative properties in keloids and as a candidate therapeutic target. Commun Biol 2023; 6:1235. [PMID: 38062202 PMCID: PMC10703807 DOI: 10.1038/s42003-023-05561-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
Keloids are benign fibroproliferative skin tumors caused by aberrant wound healing that can negatively impact patient quality of life. The lack of animal models has limited research on pathogenesis or developing effective treatments, and the etiology of keloids remains unknown. Here, we found that the characteristics of stem-like cells from keloid lesions and the surrounding dermis differ from those of normal skin. Furthermore, the HEDGEHOG (HH) signal and its downstream transcription factor GLI1 were upregulated in keloid patient-derived stem-like cells. Inhibition of the HH-GLI1 pathway reduced the expression of genes involved in keloids and fibrosis-inducing cytokines, including osteopontin. Moreover, the HH signal inhibitor vismodegib reduced keloid reconstituted tumor size and keloid-related gene expression in nude mice and the collagen bundle and expression of cytokines characteristic for keloids in ex vivo culture of keloid tissues. These results implicate the HH-GLI1 pathway in keloid pathogenesis and suggest therapeutic targets of keloids.
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Affiliation(s)
- Mamiko Tosa
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Yoshinori Abe
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Seiko Egawa
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Tomoka Hatakeyama
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Chihiro Iwaguro
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Ryotaro Mitsugi
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Ayaka Moriyama
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Takumi Sano
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Rei Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Nobuyuki Tanaka
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan.
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Chen K, Zhu Y, Su H, Jiang H, Liu X. Modified Zhibai Dihuang pill alleviated urinary tract infection induced by extended-spectrum β-lactamase Escherichia coli in rats by regulating biofilm formation. PHARMACEUTICAL BIOLOGY 2023; 61:674-682. [PMID: 37096639 PMCID: PMC10132235 DOI: 10.1080/13880209.2023.2199786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 04/02/2023] [Indexed: 05/03/2023]
Abstract
CONTEXT Zhibai Dihuang pill (ZD), a traditional Chinese medicine nourishes Yin and reduces internal heat, is believed to have therapeutic effects on urinary tract infections (UTIs). OBJECTIVE To explore the effects and mechanism of modified ZD (MZD) on UTI induced by extended-spectrum β-lactamase (ESBLs) Escherichia coli. MATERIALS AND METHODS Thirty Sprague-Dawley rats were randomly divided into control, model (0.5 mL 1.5 × 108 CFU/mL ESBLs E. coli), MZD (20 g/kg MZD), LVFX (0.025 g/kg LVFX), and MZD + LVFX groups (20 g/kg MZD + 0.025 g/kg LVFX), n = 6. After 14 days of treatment, serum biochemical indicators, renal function indicators, bladder and renal histopathology, and urine bacterial counts in rats were determined. Additionally, the effects of MZD on ESBLs E. coli biofilm formation and related gene expression were analyzed. RESULTS MZD significantly decreased the count of white blood cells (from 13.12 to 9.13), the proportion of neutrophils (from 43.53 to 23.18), C-reactive protein (from 13.21 to 9.71), serum creatinine (from 35.78 to 30.15), and urea nitrogen (from 12.56 to 10.15), relieved the inflammation and fibrosis of bladder and kidney tissues, and reduced the number of bacteria in urine (from 2174 to 559). In addition, MZD inhibited the formation of ESBLs E. coli biofilms (2.04-fold) and decreased the gene expressions of luxS, pfS and ompA (1.41-1.62-fold). DISCUSSION AND CONCLUSION MZD treated ESBLs E. coli-induced UTI inhibited biofilm formation, providing a theoretical basis for the clinical application of MZD. Further study on the clinical effect of MZD may provide a novel therapy option for UTI.
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Affiliation(s)
- Kaifa Chen
- Department of Urology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Yongsheng Zhu
- Department of Urology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hongwei Su
- Department of Urology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hao Jiang
- Department of Urology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Xin Liu
- Department of Urology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
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Jin Z, Wang D, Lv H, Wu B, Li Z, Guo X, Wang H, Yang S. Loss of the adaptor protein Sh3bgrl initiates ovarian fibrosis in zebrafish. FEBS Lett 2023; 597:2643-2655. [PMID: 37698355 DOI: 10.1002/1873-3468.14733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/13/2023]
Abstract
Ovarian fibrosis is a reproduction obstacle leading to female infertility in vertebrates, but the cause underlying the cellular events is unclear. Here, we found that the small adaptor protein SH3-domain-binding glutamate-rich protein like (Sh3bgrl) plays an important role in female reproduction in zebrafish. Two sh3bgrl mutant alleles that result in sh3bgrl depletion contribute to female spawning inability. Comparative transcriptome analysis revealed that sh3bgrl knockout mechanistically causes the upregulation of genes associated with extracellular matrix (ECM) and fiber generation in the zebrafish ovary. Consequently, extra ECM or fibers accumulate and are deposited in the ovary, resulting in eventual spawning inability. Our findings thus provide insights into understanding the underlying mechanism of infertility by ovarian fibrosis and provide a novel and valuable model to study female reproduction abnormality.
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Affiliation(s)
- Ziwei Jin
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Dongxia Wang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haimei Lv
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bo Wu
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhe Li
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiaoling Guo
- Guangdong Engineering & Technology Research Center for Disease-Model Animals, Laboratory Animal Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Haihe Wang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Shulan Yang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Engineering & Technology Research Center for Disease-Model Animals, Laboratory Animal Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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El-Nagar MMF, Elsisi AE. Exposure to bromoxynil octanoate herbicide induces oxidative stress, inflammation, and apoptosis in testicular tissue via modulating NF-кB pathway. Food Chem Toxicol 2023; 180:114008. [PMID: 37660944 DOI: 10.1016/j.fct.2023.114008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/20/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Bromoxynil octanoate (BO) is a herbicide necessary for plant growth and production. However, it may cause damage to environment and humans. This study aimed to investigate the potential testicular toxicity of BO and its possible underlying mechanisms. Male Albino (Sprague Dawley) rats were administered BO in different doses (5, 10, 20, and 40 mg/kg/BW; P.O.) daily for 21 days. Testicular function was evaluated by determining count and viability of epididymal sperm, and testosterone. In addition, the following parameters were assessed; MDA, NO, and H2O2 as oxidative stress markers; SOD, CAT, GPx, GST, and GSH as antioxidant markers; NF-ĸB-P65 and IL-18 as inflammatory markers; caspase-9 and caspase-3 as apoptotic markers; gene expression of NF-ĸB-P65, TNF-α, BAX, Bcl-2, and caspase-3; and histopathological examination of epididymis and testis sections. The results showed a significant (P < 0.05) increase in MDA, NO, H2O2, IL-18, and caspase-9 content, NF-ĸB-P65, TNF-α, Bax, and Caspase-3 expression as compared to control. Furthermore, the count and viability of epididymal sperm, testosterone level, SOD, CAT, GPx, GST, and GSH content, and Bcl-2 expression showed a significant (P < 0.05) decrease as compared to control. In conclusion BO-induced testicular damage by altering oxidation, inflammation, and apoptosis.
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Affiliation(s)
- Maysa M F El-Nagar
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Alaa E Elsisi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt.
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12
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Bao S, Zou Y, Firempong CK, Feng Y, Yu Y, Wang Y, Dai H, Mo W, Sun C, Liu H. Preparation and evaluation of sustained release pirfenidone-loaded microsphere dry powder inhalation for treatment of idiopathic pulmonary fibrosis. Eur J Pharm Sci 2023; 188:106509. [PMID: 37356463 DOI: 10.1016/j.ejps.2023.106509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/29/2023] [Accepted: 06/23/2023] [Indexed: 06/27/2023]
Abstract
Pirfenidone (PFND) is a recommended oral drug used to treat idiopathic pulmonary fibrosis, but have low bioavailability and high hepatotoxicity. The study, therefore, seeks to improve the therapeutic activities of the drug via increased bioavailability and reduced associated side effects by developing a novel drug delivery system. The electrostatic spray technology was used to prepare a sustained release pirfenidone-loaded microsphere dry powder inhalation with PEG-modified chitosan (PFND-mPEG-CS-MS). The entrapment efficiency, drug loading, and in vitro cumulative drug release rate (at 24 h and with a sustained release effect) of PFND-mPEG-CS-MS were 77.35±3.01%, 11.45±0.64%, and 90.4%, respectively. The Carr's index of PFND-mPEG-CS-MS powder was 17.074±2.163% with a theoretical mass median aerodynamic diameter (MMADt) of 0.99±0.07 μm, and a moisture absorption weight gain rate (Rw) of 4.61±0.72%. The emptying rate, pulmonary deposition rate (fine particle fraction) and actual mass median aerodynamic diameter (MMADa) were 90%∼95%, 48.72±7.04% and 3.10±0.16 μm, respectively. MTT bioassay showed that mPEG-CS-MS (200 μg/mL) had good biocompatibility (RGR = 90.25%) and PFND-mPEG-CS-MS (200 μg/mL) had significant inhibitory activity (RGR = 49.82%) on fibroblast growth. The pharmacokinetic data revealed that the t1/2 (5.02 h) and MRT (10.66 h) of PFND-mPEG-CS-MS were prolonged compared with the free PFND (t1/2, 1.67 h; MRT, 2.71 h). The pharmacodynamic results also showed that the formulated-drug group had slight pathological changes, lower lung hydroxyproline content, and reduced hepatotoxicity compared with the free-drug group. The PFND-mPEG-CS-MS further significantly down-regulated TGF-β cytokines, Collagen I, and α-SMA protein expression levels compared with the free drug. The findings indicated that the PFND-mPEG-CS-MS had a good sustained release effect, enhanced bioavailability, decreased toxicity, and increased anti-fibrotic activities.
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Affiliation(s)
- Shixue Bao
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yi Zou
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China; Suzhou Zelgen Biopharmaceutical Co., Ltd, Kunshan, 215300, PR China
| | | | - Yingshu Feng
- Zhenjiang Key Laboratory of Functional Chemistry, Institute of Medicine & Chemical Engineering, Zhenjiang College, Zhenjiang, 212028, PR China; Postdoctoral Programme of JiangSu CTQJ Pharmaceutical Co., Ltd., Huaian, 223001, PR China
| | - Yang Yu
- Jiang Sunan Pharmaceutical Industrial CO., Ltd, Zhenjiang, 212400, PR China
| | - Ying Wang
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China
| | - Huiying Dai
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China
| | - Weiwei Mo
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China
| | - Changshan Sun
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
| | - Hongfei Liu
- College of Pharmacy, Jiangsu University, Zhenjiang, 212013, PR China; Jiang Sunan Pharmaceutical Industrial CO., Ltd, Zhenjiang, 212400, PR China; Jiangmen Hongxiao Biomedical Technology Co., Ltd, Jiangmen, 529040, PR China.
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13
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Wu S, Zhang YF, Gui Y, Jiang T, Zhou CM, Li JY, Suo JL, Li YN, Jin RL, Li SL, Cui JY, Tan BH, Li YC. A detection method for neuronal death indicates abnormalities in intracellular membranous components in neuronal cells that underwent delayed death. Prog Neurobiol 2023; 226:102461. [PMID: 37179048 DOI: 10.1016/j.pneurobio.2023.102461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 03/20/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Acute neuronal degeneration is always preceded under the light and electron microscopes by a stage called microvacuolation, which is characterized by a finely vacuolar alteration in the cytoplasm of the neurons destined to death. In this study, we reported a method for detecting neuronal death using two membrane-bound dyes, rhodamine R6 and DiOC6(3), which may be associated with the so-called microvacuolation. This new method produced a spatiotemporally similar staining pattern to Fluoro-Jade B in kainic acid-damaged brains in mice. Further experiments showed that increased staining of rhodamine R6 and DiOC6(3) was observed only in degenerated neurons, but not in glia, erythrocytes, or meninges. Different from Fluoro-Jade-related dyes, rhodamine R6 and DiOC6(3) staining is highly sensitive to solvent extraction and detergent exposure. Staining with Nile red for phospholipids and filipin III for non-esterified cholesterol supports that the increased staining of rhodamine R6 and DiOC6(3) might be associated with increased levels of phospholipids and free cholesterol in the perinuclear cytoplasm of damaged neurons. In addition to kainic acid-injected neuronal death, rhodamine R6 and DiOC6(3) were similarly useful for detecting neuronal death in ischemic models either in vivo or in vitro. As far as we know, the staining with rhodamine R6 or DiOC6(3) is one of a few histochemical methods for detecting neuronal death whose target molecules have been well defined and therefore may be useful for explaining experimental results as well as exploring the mechanisms of neuronal death. (250 words).
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Affiliation(s)
- Shuang Wu
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Yan-Feng Zhang
- Department of Pediatric Neurology, First Hospital of Jilin University, Changchun, Jilin Province 130021, PR China
| | - Yue Gui
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Tian Jiang
- Department of Emergency and Critical Care Medicine, The Second Hospital of Jilin University, Jilin Province 130041, PR China
| | - Cheng-Mei Zhou
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Jing-Yi Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Jia-Le Suo
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Yong-Nan Li
- Department of Neurology, Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, PR China
| | - Rui-Lin Jin
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Shu-Lei Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Jia-Yue Cui
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Bai-Hong Tan
- Laboratory Teaching Center of Basic Medicine, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Yan-Chao Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China.
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14
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Jiang Z, Jin L, Jiang C, Yan Z, Cao Y. IL-1β contributes to the secretion of sclerostin by osteocytes and targeting sclerostin promotes spinal fusion at early stages. J Orthop Surg Res 2023; 18:162. [PMID: 36864451 PMCID: PMC9983224 DOI: 10.1186/s13018-023-03657-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 02/28/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Despite extensive research, there is still a need for safe and effective agents to promote spinal fusion. Interleukin (IL)-1β is an important factor which influences the bone repair and remodelling. The purpose of our study was to determine the effect of IL-1β on sclerostin in osteocytes and to explore whether inhibiting the secretion of sclerostin from osteocytes can promote spinal fusion at early stages. METHODS Small-interfering RNA was used to suppress the secretion of sclerostin in Ocy454 cells. MC3T3-E1 cells were cocultured with Ocy454 cells. Osteogenic differentiation and mineralisation of MC3T3-E1 cells were evaluated in vitro. SOST knock-out rat generated using the CRISPR-Cas9 system and rat spinal fusion model was used in vivo. The degree of spinal fusion was assessed by manual palpation, radiographic analysis and histological analysis at 2 and 4 weeks. RESULTS We found that IL-1β level had a positive association with sclerostin level in vivo. IL-1β promoted the expression and secretion of sclerostin in Ocy454 cells in vitro. Inhibition of IL-1β-induced secretion of sclerostin from Ocy454 cells could promote the osteogenic differentiation and mineralisation of cocultured MC3T3-E1 cells in vitro. The extent of spinal graft fusion was greater in SOST-knockout rats than in wild-type rats at 2 and 4 weeks. CONCLUSIONS The results demonstrate that IL-1β contributes to a rise in the level of sclerostin at early stages of bone healing. Suppressing sclerostin may be an important therapeutic target capable of promoting spinal fusion at early stages.
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Affiliation(s)
- Zengxin Jiang
- Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai, 200233, China.,Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, NO. 180 Feng Lin Road, Xuhui District, Shanghai, 200032, China
| | - Lixia Jin
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, NO. 180 Feng Lin Road, Xuhui District, Shanghai, 200032, China
| | - Chang Jiang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, NO. 180 Feng Lin Road, Xuhui District, Shanghai, 200032, China
| | - Zuoqin Yan
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, NO. 180 Feng Lin Road, Xuhui District, Shanghai, 200032, China.
| | - Yuanwu Cao
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, NO. 180 Feng Lin Road, Xuhui District, Shanghai, 200032, China.
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15
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Gong H, Wang T, Wu M, Chu Q, Lan H, Lang W, Zhu L, Song Y, Zhou Y, Wen Q, Yu J, Wang B, Zheng X. Maternal effects drive intestinal development beginning in the embryonic period on the basis of maternal immune and microbial transfer in chickens. MICROBIOME 2023; 11:41. [PMID: 36869365 PMCID: PMC9983169 DOI: 10.1186/s40168-023-01490-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Nutrition drives immunity and health in animals, and maternal immunity benefits offspring. In our previous study, a nutritional intervention strategy was found to promote the immunity of hens, which subsequently improved immunity and growth in offspring chicks. Maternal effects clearly exist, but how are mothers' immune advantages transferred to their offspring, and how do they benefit them? RESULTS Here, we traced the beneficial effects back to the process of egg formation in the reproductive system, and we focused on the embryonic intestinal transcriptome and development, as well as on maternal microbial transfer in offspring. We found that maternal nutritional intervention benefits maternal immunity, egg hatching, and offspring growth. The results of protein and gene quantitative assays showed that the transfer of immune factors into egg whites and yolks depends on maternal levels. Histological observations indicated that the promotion of offspring intestinal development begins in the embryonic period. Microbiota analyses suggested that maternal microbes transfer to the embryonic gut from the magnum to the egg white. Transcriptome analyses revealed that offspring embryonic intestinal transcriptome shifts are related to development and immunity. Moreover, correlation analyses showed that the embryonic gut microbiota is correlated with the intestinal transcriptome and development. CONCLUSIONS This study suggests that maternal immunity positively influences offspring intestinal immunity establishment and intestinal development beginning in the embryonic period. Adaptive maternal effects might be accomplished via the transfer of relatively large amounts of maternal immune factors and by shaping of the reproductive system microbiota by strong maternal immunity. Moreover, reproductive system microbes may be useful resources for the promotion of animal health. Video Abstract.
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Affiliation(s)
- Haizhou Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
- Key Laboratory of Animal Production, Product Quality and Security (Jilin Agricultural University), Ministry of Education, Changchun, 130118 China
| | - Taiping Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Min Wu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Qianran Chu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Hainan Lan
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Wuying Lang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Lingyu Zhu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Yang Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Yujie Zhou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Qiongyi Wen
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Jing Yu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Baolin Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
| | - Xin Zheng
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118 China
- Key Laboratory of Animal Production, Product Quality and Security (Jilin Agricultural University), Ministry of Education, Changchun, 130118 China
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Groeneveld I, Ariese F, Somsen GW, van Bommel MR. Gas-permeable liquid-core waveguide coupled to LC-MS for studying the influence of oxygen on photodegradation processes. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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17
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Li Z, Muench G, Goebel S, Uhland K, Wenhart C, Reimann A. Flow chamber staining modality for real-time inspection of dynamic phenotypes in multiple histological stains. PLoS One 2023; 18:e0284444. [PMID: 37141296 PMCID: PMC10159194 DOI: 10.1371/journal.pone.0284444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Traditional histological stains, such as hematoxylin-eosin (HE), special stains, and immunofluorescence (IF), have defined myriads of cellular phenotypes and tissue structures in a separate stained section. However, the precise connection of information conveyed by the various stains in the same section, which may be important for diagnosis, is absent. Here, we present a new staining modality-Flow chamber stain, which complies with the current staining workflow but possesses newly additional features non-seen in conventional stains, allowing for (1) quickly switching staining modes between destain and restain for multiplex staining in one single section from routinely histological preparation, (2) real-time inspecting and digitally capturing each specific stained phenotype, and (3) efficiently synthesizing graphs containing the tissue multiple-stained components at site-specific regions. Comparisons of its stains with those by the conventional staining fashions using the microscopic images of mouse tissues (lung, heart, liver, kidney, esophagus, and brain), involving stains of HE, Periodic acid-Schiff, Sirius red, and IF for Human IgG, and mouse CD45, hemoglobin, and CD31, showed no major discordance. Repetitive experiments testing on targeted areas of stained sections confirmed the method is reliable with accuracy and high reproducibility. Using the technique, the targets of IF were easily localized and seen structurally in HE- or special-stained sections, and the unknown or suspected components or structures in HE-stained sections were further determined in histological special stains or IF. By the technique, staining processing was videoed and made a backup for off-site pathologists, which facilitates tele-consultation or -education in current digital pathology. Mistakes, which might occur during the staining process, can be immediately found and amended accordingly. With the technique, a single section can provide much more information than the traditional stained counterpart. The staining mode bears great potential to become a common supplementary tool for traditional histopathology.
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Kang HJ, Park SS, Tripathi G, Lee BT. Injectable demineralized bone matrix particles and their hydrogel bone grafts loaded with β-tricalcium phosphate powder and granules: A comparative study. Mater Today Bio 2022; 16:100422. [PMID: 36133794 PMCID: PMC9483747 DOI: 10.1016/j.mtbio.2022.100422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
Demineralized bone matrix (DBM), has been used as a bone-graft material because of its osteoconductivity and osteoinductivity. However, the previous research report that supports the single use of DBM is limited by its rapid resorption caused by the lack of calcium and phosphate. β-Tricalcium phosphate (TCP) is an enriched calcium phosphate material suitable for bone healing with osteoconductive properties. In this study, we have developed injectable bone graft by the loading two kinds of TCP in DBM particles and thermo-sensitive DBM-derived hydrogel (hDBM). TCP powder (pTCP) and TCP granules (gTCP) were loaded into hDBM and DBM, respectively. The bone formation effect was investigated according to the morphological features of TCP. Residual growth factor concentrations were investigated; microstructure and morphology were characterized by SEM. In-vitro studies showed that hDBM/DBM/pTCP and hDBM/DBM/gTCP bone grafts were biocompatible and could promote osteogenesis by up-regulating the expression of Runx2 and OPN, bone-related genes. In-vivo studies using the rabbit-femur defect model revealed that the implanted hDBM/DBM/pTCP bone graft showed similar histology to that of fibrous dysplasia with the expression of CD68, whereas hDBM/DBM/gTCP showed good bone formation. Loading of gTCP in place of pTCP was noticed as an effective way to improve bone regeneration in an injectable hDBM/DBM hydrogel-based bone graft.
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Affiliation(s)
- Hoe-Jin Kang
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Seong-Su Park
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Garima Tripathi
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Byong-Taek Lee
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea.,Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
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An Integrated Analysis of Lactation-Related miRNA and mRNA Expression Profiles in Donkey Mammary Glands. Genes (Basel) 2022; 13:genes13091637. [PMID: 36140805 PMCID: PMC9498803 DOI: 10.3390/genes13091637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Donkey milk is consumed by humans for its nutritional and therapeutic properties. MicroRNAs (miRNAs) and messenger RNAs (mRNAs) have been implicated in the regulation of milk component synthesis and mammary gland development. However, the regulatory profile of the miRNAs and mRNAs involved in lactation in donkeys is unclear. We performed mRNA-seq and miRNA-seq and constructed coexpression regulatory networks for the mammary glands during the lactating and nonlactating period of jennies. We identified 3144 differentially expressed (DE) mRNAs (987 upregulated mRNAs and 2157 downregulated mRNAs) and 293 DE miRNAs (231 upregulated miRNAs and 62 downregulated miRNAs) in the lactating group compared to the nonlactating group. The DE miRNA target mRNA were significantly associated with pathways related to RNA polymerase, glycosphingolipid biosynthesis, mRNA surveillance, ribosome biogenesis in eukaryotes, glycerophospholipid metabolism, Ras signaling, and the fly hippo signaling pathway. The mRNA–miRNA coregulation analysis showed that novel-m0032-3p, miR-195, miR-26-5p, miR-23-3p, miR-674-3p, and miR-874-3p are key miRNAs that target mRNAs involved in immunity and milk lipid, protein, and vitamin metabolism in the jenny mammary gland. Our results improve the current knowledge of the molecular mechanisms regulating bioactive milk component metabolism in the mammary glands and could be used to improve milk production in donkeys.
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Hernandez S, Serrano AG, Solis Soto LM. The Role of Nerve Fibers in the Tumor Immune Microenvironment of Solid Tumors. Adv Biol (Weinh) 2022; 6:e2200046. [PMID: 35751462 DOI: 10.1002/adbi.202200046] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/12/2022] [Indexed: 01/28/2023]
Abstract
The importance of neurons and nerve fibers in the tumor microenvironment (TME) of solid tumors is now acknowledged after being unexplored for a long time; this is possible due to the development of new technologies that allow in situ characterization of the TME. Recent studies have shown that the density and types of nerves that innervate tumors can predict a patient's clinical outcome and drive several processes of tumor biology. Nowadays, several efforts in cancer research and neuroscience are taking place to elucidate the mechanisms that drive tumor-associated innervation and nerve-tumor and nerve-immune interaction. Assessment of neurons and nerves within the context of the TME can be performed in situ, in tumor tissue, using several pathology-based strategies that utilize histochemical and immunohistochemistry principles, hi-plex technologies, and computational pathology approaches to identify measurable histopathological characteristics of nerves. These features include the number and type of tumor associated nerves, topographical location and microenvironment of neural invasion of malignant cells, and investigation of neuro-related biomarker expression in nerves, tumor cells, and cells of the TME. A deeper understanding of these complex interactions and the impact of nerves in tumor biology will guide the design of better strategies for targeted therapy in clinical trials.
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Affiliation(s)
- Sharia Hernandez
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, 2130 West Holcombe Boulevard, Houston, TX, 77030, USA
| | - Alejandra G Serrano
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, 2130 West Holcombe Boulevard, Houston, TX, 77030, USA
| | - Luisa M Solis Soto
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, 2130 West Holcombe Boulevard, Houston, TX, 77030, USA
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Intraarticularly injectable silk hydrogel microspheres with enhanced mechanical and structural stability to attenuate osteoarthritis. Biomaterials 2022; 286:121611. [PMID: 35660867 DOI: 10.1016/j.biomaterials.2022.121611] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/22/2022] [Accepted: 05/29/2022] [Indexed: 12/18/2022]
Abstract
A silk fibroin (silk) hydrogel was prepared by using diglycidyl ether (BDDE), a chemical crosslinker commonly used to generate Food and Drug Administration (FDA)-approved hyaluronic acid (HA) medical products. The silk/BDDE hydrogels exhibited high elasticity (compressive modulus of 166 ± 15.0 kPa), anti-fatigue properties, and stable structure and mechanical strength in aqueous solution. Chemical crosslinking was conducted in a high concentration (9.3 M) of lithium bromide (LiBr) solution, a salt that is commonly used to dissolve degummed silk fibers during silk solubilization. The unfolded and extended structure of silk molecules with these reaction conditions, as well as the unique ionic environment provided by LiBr facilitated a high degree of crosslinking in the hydrogel. Similar hydrogels were not obtained when the silk was dissolved in other silk fiber-dissolving reagents (e.g., Ajisawa's, formic acid (FA)/LiBr, FA/CaCl2 solutions), likely because partially folded silk structures and the ionic conditions with these reagents were less favorable for the crosslinking reaction. Based on these findings, silk/BDDE hydrogel spheres were prepared using an oil/water (o/w) emulsification method and biocompatibility and biodegradation were evaluated in vivo, along with other silk gel control systems (e.g., enzyme-catalyzed di-tyrosine and pulverized silk/BDDE gel particles with irregular shapes). Histological and immunohistochemical analyses demonstrated that the silk/BDDE hydrogel spheres were biocompatible and served as a bio-lubricant to treat osteoarthritis (OA). The intra-articular injection of the gel spheres reduced pain as measured with OA rats, reduced cartilage damage and resisted the digestive environment in the articular cavity for extended time frames (>4 weeks), suggesting utility for pain relief and sustained drug release for future OA treatments.
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22
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Shaheen TI, Abdelhameed MF, Zaghloul S, Montaser AS. In vivo assessment of the durable, green and in situ bio-functional cotton fabrics based carboxymethyl chitosan nanohybrid for wound healing application. Int J Biol Macromol 2022; 209:485-497. [PMID: 35398385 DOI: 10.1016/j.ijbiomac.2022.04.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 02/01/2023]
Abstract
Herein, a newly developed approach for durable antibacterial cotton fabrics coated carboxymethyl chitosan (CMCs) via ionic crosslinking driven by cationization of cotton surface (CC) with 3-chloro-2-hydroxyl propyl-trimethyl ammonium chloride (CHTAC). In this regard, the novelty was extended to impart a highly antibacterial activity through harnessing of the as-functionalized CMCs/CC in situ preparation of AgNPs, without using of hazardous reductants. The antibacterial activity of the in situ prepared AgNPs onto CMCs/CC as well as the in vivo study on the rat lab were investigated to evaluate their healing efficiency, pathological tissues and biomarkers. Results affirmed that the treatment of CC with 10% of CMCs was adequate to achieve the highest swelling ratio which, in turns, is able to in situ deposition of AgNPs with a size range of 2-10 nm onto CC/CMCs rendering them a highly durable antibacterial activity against both Gram +Ve and Gram -Ve bacteria, which had a bacterial reduction of 98% to 86% after 20 washing cycles. Furthermore, the in vivo study revealed effectively the advantageous uses of the cotton functionalized with AgNPs compared to CC/CMCs in wound healing via alleviating the oxidative stress and promoting hyaluronic acid in wounded skin as well as increasing RUNX2 in healed skin tissues.
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Affiliation(s)
- Tharwat I Shaheen
- Institute of Textile Research and Technology, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt.
| | - Mohamed F Abdelhameed
- Department of Pharmacology, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt.
| | - Saad Zaghloul
- Institute of Textile Research and Technology, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt
| | - A S Montaser
- Institute of Textile Research and Technology, National Research Centre, Scopus affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza 12622, Egypt
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Abu-Risha SE, Mousa MA, Elsisi AE. Protective role of irbesartan against cyclophosphamide-induced testicular damage in rats via up-regulating PPAR-γ signaling and ameliorating NF-κB/NLRP3/IL-18 inflammatory axis. Life Sci 2022; 289:120218. [PMID: 34890588 DOI: 10.1016/j.lfs.2021.120218] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/23/2021] [Accepted: 12/02/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Cancer and its therapies can impact fertility in various ways, and therefore a growing number of cancer survivors face fertility as a significant concern. The cytotoxic alkylating agent cyclophosphamide (CP) is commonly used as an antineoplastic agent; unfortunately, its use is significantly associated with male infertility and damage to the reproductive system. AIM The present study aimed to assess the possible beneficial effects of Irbesartan (IRB) in a rat model of CP-induced testicular toxicity. MAIN METHODS The effects of treatment were assessed by measuring peroxisome proliferator-activated receptor gamma (PPAR-γ) expression via qRT-PCR, the immunohistochemical (IHC) assessment of apoptotic markers, NOD-like receptor protein 3 (NLRP3), and nuclear factor-κB (NF-κB), determination of the count and viability of epididymal sperm, oxidative stress markers via biochemical analysis, serum testosterone, caspase-1, and interleukin-18 (IL-18) levels via ELISA, histopathological assessment, and fibrosis by Masson's trichrome (MT) stain. KEY FINDINGS There was a significant increase in malondialdehyde (MDA), caspase-1, and IL-18 contents, NF-κB, NLRP3, Bcl-2-associated X protein (Bax), caspase-3, and MT staining in testicular tissue after CP administration compared to the normal control group. Whereas reduced glutathione (GSH), superoxide dismutase (SOD), PPAR-γ expression, B-cell lymphoma-2 (Bcl-2) staining, serum testosterone, and the count and viability of epididymal sperm were decreased compared to the normal control group. The IRB treatment has reversed CP-induced testicular toxicity. SIGNIFICANCE It is possible to conclude that IRB revealed a significant testicular protective effect against CP via antioxidant, anti-apoptotic, and anti-inflammatory effects.
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Affiliation(s)
- Sally E Abu-Risha
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Mai A Mousa
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Alaa E Elsisi
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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Akaji S, Sagawa T, Honda A, Miyasaka N, Sadakane K, Ichinose T, Takano H. Post-staining Raman analysis of histological sections following decolorization. Analyst 2022; 147:4473-4479. [DOI: 10.1039/d2an01138g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study proposed to observe HE-stained tissue structure and Raman fingerprint mapping on the identical tissue slide after a decolorizing step.
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Affiliation(s)
- Sakiko Akaji
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Tomoya Sagawa
- Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Akiko Honda
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Natsuko Miyasaka
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Kaori Sadakane
- Department of Health Science, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan
| | - Takamichi Ichinose
- Department of Health Science, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan
| | - Hirohisa Takano
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
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25
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Liu H, Zou Y, Zhu J, He H, Feng Y, Firempong CK, Yu Y, Sun C. Preparation and Evaluation of rhINF-α-2b Sodium Hyaluronate Cross-Linked Porous Microspheres: Characterization, Sustained-Release Properties, and Antitumor Activity. AAPS PharmSciTech 2021; 23:31. [PMID: 34931261 DOI: 10.1208/s12249-021-02178-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 11/10/2021] [Indexed: 11/30/2022] Open
Abstract
Recombinant human interferon α-2b (rhINF-α-2b), like most proteins, has several shortcomings such as relatively short half-life, low therapeutic index, high circulating drug fluctuations, and rapid degradation which could hinder its effective delivery. Novel electrostatic spray and ion exchange drug-loading techniques were combined to formulate rhINF-α-2b sodium hyaluronate cross-linked porous sustained-release microspheres (rhINF-α-2b-SHCPM), a protein delivery system. The different properties of rhINF-α-2b-SHCPM including the physicochemical nature, in vitro release behavior, and antitumor activity were evaluated. The loading rate (10.31 ± 0.94%) and encapsulation efficiency (89.09 ± 2.37%) of rhINF-α-2b-SHCPM produced acceptable values. The in vitro cumulative release rate of rhINF-α-2b-SHCPM within 24 h was also 86.26 ± 2.11% with a much better sustained release effect. Thus, the half-life (10.763 h) and retention time (14.067 h) of rhIFNα-2b-SHCPM were significantly prolonged with enhanced bioavailability (43,198.387 ng/L*h) and decreased peak concentration (15,266.4 ngL-1) compared with the free rhIFNα-2b protein (0.912 h, 0.952 h, 34,749.048 ng/L*h, and 48,870.2 ngL-1, respectively). The in vitro anti-proliferative activity and in vivo tumor inhibitory rate of rhIFNα-2b-SHCPM also increased by 90 and 55.86%, respectively, compared with the free rhIFNα-2b solution. The findings significantly supported a well-developed protein delivery system with improved sustained release, acceptable bioavailability, and increased antitumor activities. Graphical Abstract.
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Kang EJ, Cho S, Lim C, Lee B, Kim YK, Kim KM. Effects of the methanol fraction of modified Seonghyangjeongki-san water extract on transient ischaemic brain injury in mice. PHARMACEUTICAL BIOLOGY 2021; 59:840-853. [PMID: 34184969 PMCID: PMC8245089 DOI: 10.1080/13880209.2021.1941130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 06/13/2023]
Abstract
CONTEXT Recently in Korean medicine, the antioxidant and anti-inflammatory activities of Seonghyangjeongki-san (SHJKS) were reported. However, studies on the specific mechanisms of action of SHJKS for the treatment of ischaemic stroke are still lacking. OBJECTIVE This study investigates the mechanism of action of the water extract methanol fraction of modified SHJKS (SHJKSmex) on cerebral ischaemic injury. MATERIALS AND METHODS C57BL/6 male mice were orally administered SHJKSmex (30, 100, or 300 mg/kg) for 3 consecutive days (2 days, 1 day, and 1 h, respectively) before middle cerebral artery occlusion (MCAO). Twenty-four hours after MCAO, the infarct volumes were measured, brain edoema indices were calculated, and neurological deficit scores were determined. Inflammation-related substances in the ipsilateral hemisphere were determined by western blotting, dichlorofluorescin diacetate, thiobarbituric acid-reactive substances assay, and enzyme-linked immunosorbent assay. RESULTS SHJKSmex pre-treatment at 300 mg/kg decreased infarct volume by 87% and mean brain water content by 90% of the MCAO control group. Moreover, SHJKSmex effectively suppressed the expression of inducible nitric oxide synthase, reactive oxygen species, interleukin 1, and caspases-8 and -9 and increased the B-cell lymphoma 2/Bcl-2-associated X protein ratio (Bcl-2/Bax) in ischaemic mouse brain. The hippocampal pyramidal cell densities were significantly increased in the 300 mg/kg SHJKSmex-administered group compared to the MCAO control group. DISCUSSION AND CONCLUSIONS SHJKSmex protected the brain from ischaemic stroke in mice through its antioxidant, anti-inflammatory, and antiapoptotic activities. Our findings suggest that SHJKSmex is a promising therapeutic candidate for the development of a new formulation for ischaemia-induced brain damage.
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Affiliation(s)
- Eun-Jin Kang
- College of Korean Medicine, Dong-Eui University, Busan, Republic of Korea
| | - Suin Cho
- School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Chiyeon Lim
- College of Medicine, Dongguk University, Gyeonggi-do, Republic of Korea
| | - Byoungho Lee
- Inju Hospital of Korean Medicine, Incheon, Republic of Korea
| | - Young Kyun Kim
- College of Korean Medicine, Dong-Eui University, Busan, Republic of Korea
| | - Kyoung-Min Kim
- College of Korean Medicine, Dong-Eui University, Busan, Republic of Korea
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Li Y, Dong Z, Wen G, Ren X, Ren W, Yan L, Wang X, Yu H, Wu X, Xia X, Lu Y, Wu X. Long-term ketamine administration induces bladder damage and upregulates autophagy-associated proteins in bladder smooth muscle tissue. ENVIRONMENTAL TOXICOLOGY 2021; 36:2521-2529. [PMID: 34487425 DOI: 10.1002/tox.23365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Long-term ketamine abuse can cause significant lower urinary tract symptoms in humans, termed ketamine-associated cystitis (KC). Here, we established a model of long-term (6 months) ketamine administration in wild-type (C57BL/6) mice. We elucidated the pathological effects of ketamine in the bladder and investigated changes in autophagy-associated protein expression (i.e., LC3, Beclin-1, and P62) and inflammatory cytokines (i.e., IL-6 and IL-1β) in the bladder smooth muscle tissue. Long-term ketamine administration reduced the number of layers in the bladder mucosal epithelial cells (4-5 layers in the saline group vs. 2-3 layers in the ketamine groups), but increased the number of mast cells and collagen fibers. LC3-II/LC3-I, Beclin-1, IL-6, and IL-1β protein expression in the bladder smooth muscle tissues of ketamine-treated mice was significantly increased. The mRNA and protein levels of P62 in the Ket-60 mg/kg group were also significantly increased, but not the Ket-30 mg/kg group. Our results reveal that long-term ketamine administration can cause cystitis-like pathological changes in mice, and the disordered autophagy in the bladder tissue may be involved in the persistent bladder damage following long-term administration of ketamine at 60 mg/kg.
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Affiliation(s)
- Yanning Li
- School of Forensic Medicine, China Medical University, Shenyang, China
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Zhibin Dong
- Qixia District Branch of Nanjing Public Security Bureau, Nanjing, China
| | - Gehua Wen
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Xinghua Ren
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Weishu Ren
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Lei Yan
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Xiaolong Wang
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Hao Yu
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Xue Wu
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Xi Xia
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Yan Lu
- Key Laboratory of Health Ministry in Congenital Malformation, Affiliated Shengjing Hospital of China Medical University, Shenyang, China
| | - Xu Wu
- School of Forensic Medicine, China Medical University, Shenyang, China
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Li H, Zhu Q, Li K, Wu Z, Tang Z, Wang Z. Investigation of urinary components in rat model of ketamine-induced bladder fibrosis based on metabolomics. Transl Androl Urol 2021; 10:830-840. [PMID: 33718084 PMCID: PMC7947432 DOI: 10.21037/tau-20-1202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Ketamine abuse has been linked to the system's damage, presenting with lower urinary tract symptoms (LUTS). While the pathogenesis of ketamine-induced urinary damage is not fully understood, fibrosis is believed to be a potential mechanism. A metabolomic investigation of the urinary metabolites in ketamine abuse was conducted to gain insights into its pathogenesis. Methods A rat model of ketamine induced bladder fibrosis was established through tail vein injection of ketamine hydrochloride and control group was established through tail vein injection of the equivalent normal saline. Hematoxylin and eosin (H&E) staining and Masson trichrome staining were performed to evaluated bladder pathology. Urinary components were detected based on a metabolomic approach using ultra-high performance liquid tandem chromatography quadrupole time of flight mass spectrometry (UHPLC-QTOFMS platform). Orthogonal projections analyzed the data to latent structures discriminant analysis (OPLS-DA) and bioinformatics analysis. Results The rat model of ketamine induced bladder fibrosis was confirmed through H&E and Masson trichrome staining. There were marked differences in the urinary metabolites between the experimental group and the control group. Compared to the control group, 16 kinds of differential metabolites were up-regulated and 102 differential metabolites were down-regulated in the urine samples of the ketamine group. Bioinformatics analysis revealed the related metabolic pathways. Conclusions Using a ketamine-induced bladder fibrosis rat model, this study identified the differential urinary metabolites expressed following ketamine treatment. These results provide vital clues for exploring the pathogenesis of ketamine-induced LUTS and may further contribute to the disease's diagnosis and treatment.
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Affiliation(s)
- Haozhen Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Quan Zhu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Kaixuan Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Ziqiang Wu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhengyan Tang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Laboratory for Diagnosis and Treatment of Genitourinary System Disease, Changsha, China
| | - Zhao Wang
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
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Development of Epidermal Equivalent from Electrospun Synthetic Polymers for In Vitro Irritation/Corrosion Testing. NANOMATERIALS 2020; 10:nano10122528. [PMID: 33339410 PMCID: PMC7766501 DOI: 10.3390/nano10122528] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 12/14/2022]
Abstract
The development of products for topical applications requires analyses of their skin effects before they are destined for the market. At present, the ban on animal use in several tests makes the search for in vitro models (such as artificial skin) necessary to characterize the risks involved. In this work, tissue engineering concepts were used to manufacture collagen-free three-dimensional scaffolds for cell growth and proliferation. Two different human skin models-reconstructed human epidermis and full-thickness skin-were developed from electrospun scaffolds using synthetic polymers such as polyethylene terephthalate, polybutylene terephthalate, and nylon 6/6. After the construction of these models, their histology was analyzed by H&E staining and immunohistochemistry. The results revealed a reconstructed epidermal tissue, duly stratified, obtained from the nylon scaffold. In this model, the presence of proteins involved in the epidermis stratification process (cytokeratin 14, cytokeratin 10, involucrin, and loricrin) was confirmed by immunohistochemistry and Western blot analysis. The nylon reconstructed human epidermis model's applicability was evaluated as a platform to perform irritation and corrosion tests. Our results demonstrated that this model is a promising platform to assess the potential of dermal irritation/corrosion of chemical products.
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Poerwosusanta H, Gunadi, Oktaviyanti IK, Kania N, Noor Z. Laparoscopic procedures impact on mast cell mediators, extracellular matrix and adhesion scoring system in rats. Ann Med Surg (Lond) 2020; 58:102-106. [PMID: 32963775 PMCID: PMC7490447 DOI: 10.1016/j.amsu.2020.08.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/26/2020] [Accepted: 08/26/2020] [Indexed: 11/09/2022] Open
Abstract
Background Laparoscopic procedures under certain pressure have the potential to cause intra-abdominal adhesions. However, the pathomechanism of this disorder is unknown. Release of mast cell mediators due to mast cell degranulation is thought to be the cause. Materials and methods Thirty male Sprague-Dawley rats were grouped into five groups (n = 6 per group): one control group and four intervention groups to which 60 min insufflation was performed using carbon dioxide at 5, 8, 10 and 12 mmHg. Seven days after laparoscopy, we euthanized and evaluated the levels of histamine, tryptase, and chymase of peritoneal fluid, the thickness of ECM of peritoneal tissue, and intraabdominal adhesion scoring system. Results Histamine and tryptase levels in peritoneal fluid were significantly higher at the 10- and 12 mm Hg intervention compared to control (histamine: 0.50 ± 0.35 vs. 0.41 ± 0.41 vs. 0.04 ± 0.02 ng/mL, respectively; and tryptase: 0.69 ± 0.11 vs. 0.65 ± 0.05 vs. 0.48 ± 0.02 ng/ml respectively). The ECM was significantly thicker in the intervention groups at 10- and 12-mm Hg compared to control (71.3 [66.7–85.2] vs. 48.4 [34.5–50.3] vs. 10.25 [8.7–12.1] μm, respectively). Moreover, the intra-abdominal scoring was also significantly higher in the intervention groups at 10- and 12 mm Hg compared to control (4 [0–4] vs. 4.5 [4–5], vs. 0, respectively). Conclusions Laparoscopic procedures increase the release of mast cell mediators in peritoneal fluid, the thickness of ECM and intraabdominal adhesion scoring in rats, implying that it might increase the possibility of intrabdominal adhesion in humans. Laparoscopic procedures at specific pressures potentially cause intra-abdominal adhesion, however, its pathomechanism is still challenging to understand. Laparoscopic procedures increase the release of mast cell mediators in peritoneal fluid, the thickness of ECM and intraabdominal adhesion scoring in rats. Our findings imply that laparoscopic procedures might increase the possibility of intrabdominal adhesion in humans.
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Key Words
- ATP, Adenosine triphosphate
- CO2, Carbon dioxide
- CRAC, Calcium release-activated channels
- DAMPs, Damage Associated Molecular Patterns
- DNA, Deoxyribonucleic acid
- ECM, Extracellular matrix
- ELISA, Enzyme-linked-immunosorbent-assay
- Extracellular matrix thickness
- GPCR, G Protein-Coupled Receptors
- Histamine
- Intra-abdominal adhesion
- Laparoscopy
- Mast cell mediators
- PAR-2, protease-activated receptor 2
- Protease
- ROS, Reactive Oxygen Species
- TGF-β, Transforming growth factor-beta
- TRPC, Transient receptor potential canonical
- TRPV4, Transient receptor potential vanilloid 4
- VDAC, Voltage-dependent anion channel
- pro-MMP9, pro Matrix metallopeptidase 9
- tPA, tissue plasminogen activator
- uPA, urokinase plasminogen activator
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Affiliation(s)
- Hery Poerwosusanta
- Department of Surgery, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarmasin, South Kalimantan, Indonesia
| | - Gunadi
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gajah Mada /Dr. Sardjito Hospital, Yogyakarta, Indonesia
| | - Ika Kustiyah Oktaviyanti
- Department of Anatomical Pathology, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarmasin, South Kalimantan, Indonesia
| | - Nia Kania
- Department of Anatomical Pathology, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarmasin, South Kalimantan, Indonesia
| | - Zairin Noor
- Department of Surgery, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarmasin, South Kalimantan, Indonesia
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