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Zhou H, Qiao S, Zhao X, Zeng W. Supramolecular Salicylic Acid Alleviates Skin Photoaging by Increasing Collagen Density and Elasticity. Aesthetic Plast Surg 2024:10.1007/s00266-024-04180-1. [PMID: 38926250 DOI: 10.1007/s00266-024-04180-1] [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: 02/24/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Skin rejuvenation has always been of great concern. Although salicylic acid (SA) has multiple properties, it is mainly used in dermatology as a superficial peeling agent that can improve photodamaged epidermis. However, the effect of SA on the photoaging dermis is unclear. PURPOSE To evaluate the efficacy and safety of supramolecular SA alone for treating photoaged skin, and the effect of SSA on photoaged dermis. METHODS This is a double-blind, randomized, placebo-controlled trial. 36 patients with photodamaged hands were enrolled. One hand was randomly selected as SSA treated side. 30% SSA biweekly and 2% SSA daily was applied for 4 months; an additional follow-up was performed 2 weeks after the last treatment. Skin photoaging score (SPS), global aesthetic improvement scale (GAIS), viscoelasticity, ultrasound parameters, color and transepidermal water loss (TEWL) were assessed. RESULTS SSA treatment induced a significant increase in collagen density and skin elasticity, accompanied by an increase in dermal thickness and a decrease in melanin index and TEWL. As result, the GAIS and the SPS were improved significantly after SSA treatment. No adverse events were observed after SSA treatments, and 98% of the subjects were satisfied or very satisfied with the treatment. CONCLUSION SSA can increase collagen density and skin elasticity to alleviate skin photoaging effectively and safely. LEVEL OF EVIDENCE I This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Hongmei Zhou
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, China
| | - Simeng Qiao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, China
| | - Xi Zhao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xi'an, 710004, China.
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Ye CX, Yi J, Su Z, Gao X, Jiang X, Yu N, Xiang L, Zeng W, Li J, Jin H, Liu W, Zheng Y, Lai W. 2% supramolecular salicylic acid hydrogel vs. adapaline gel in mild to moderate acne vulgaris treatment: A multicenter, randomized, evaluator-blind, parallel-controlled trial. J Cosmet Dermatol 2024; 23:2125-2134. [PMID: 38590107 DOI: 10.1111/jocd.16238] [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: 12/12/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 04/10/2024]
Abstract
OBJECTIVE Salicylic acid (SA) has been used for treatment of acne of different severity levels. However, there are few researches about the safety and efficacy for treatment of mild to moderate acne, and the improvement of the skin condition by using 2% supramolecular salicylic acid (SSA) compared to Davuwen Adapaline gel. METHODS A multicenter, randomized, assessor-blind and parallel-controlled study was conducted. A total of 500 patients (trial group: 249, control group: 251) with mild to moderate (grade I-II) facial acne vulgaris were recruited in this study over a 16-week trial period. Patients in the trial group were treated with Broda 2% SSA hydrogel, while control group treated with Davuwen Adapaline gel once a day. The number of inflammatory papules, comedones, and pustules were counted and the rate of lesion reduction was calculated pre- and post-treatment. Then, the skin physiological indicators, including L*a*b*, TEWL, skin sebum and hydration were measured. Statistical analysis was conducted using SAS 9.4. Significance was set at p = 0.05. RESULTS At the end of 12 weeks' therapy, the regression and markedly improvement rate of the trail group and the control group were 51.01% and 43.10% respectively, and there was no significant difference in the improvement rate between two groups (p = 0.0831). Although, there was no difference in adverse events rate between two groups, the adverse events rate of the trail group was 0.40%, a little lower than the control group (0.80%). Moreover, there was a significant difference in the numbers of pores at T1 between two groups. CONCLUSION Both 2% SSA and Adapaline gel were equally effective in the treatment of mild to moderate acne vulgaris. 2% SSA is worth the clinical promotion and application in mild to moderate acne vulgaris.
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Affiliation(s)
- Cong Xiu Ye
- Department of Dermato-venereology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - JinLing Yi
- Department of Dermato-venereology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhen Su
- Department of Dermato-venereology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xinghua Gao
- Department of Dermatology, The First Hospital of China Medical University, Shenyang City, China
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu City, China
| | - Nan Yu
- Department of Dermatology, General Hospital of Ningxia Medical University, Yinchuan City, China
| | - Leihong Xiang
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, Shanghai, China
| | - Weihui Zeng
- Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xincheng, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha City, China
| | - Hongzhong Jin
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - Wei Liu
- Department of Dermatology, PLA Air Force General Hospital, Beijing, China
| | - Yue Zheng
- Department of Dermato-venereology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Department of Dermatology, NanFang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Lai
- Department of Dermato-venereology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zagórska-Dziok M, Nowak A, Muzykiewicz-Szymańska A, Ziemlewska A, Nizioł-Łukaszewska Z, Mokrzyńska A, Wójciak M, Sowa I. Investigating the Anti-Inflammatory Properties and Skin Penetration Ability of Cornelian Cherry ( Cornus mas L.) Extracts. Int J Mol Sci 2024; 25:4763. [PMID: 38731982 PMCID: PMC11083856 DOI: 10.3390/ijms25094763] [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: 03/26/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Plant extracts can be a valuable source of biologically active compounds in many cosmetic preparations. Their effect depends on the phytochemicals they contain and their ability to penetrate the skin. Therefore, in this study, the possibility of skin penetration by phenolic acids contained in dogwood extracts of different fruit colors (yellow, red, and dark ruby red) prepared using different extractants was investigated. These analyses were performed using a Franz chamber and HPLC-UV chromatography. Moreover, the antioxidant properties of the tested extracts were compared and their impact on the intracellular level of free radicals in skin cells was assessed. The cytotoxicity of these extracts towards keratinocytes and fibroblasts was also analyzed and their anti-inflammatory properties were assessed using the enzyme-linked immunosorbent assay (ELISA). The analyses showed differences in the penetration of individual phenolic acids into the skin and different biological activities of the tested extracts. None of the extracts had cytotoxic effects on skin cells in vitro, and the strongest antioxidant and anti-inflammatory properties were found in dogwood extracts with dark ruby red fruits.
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Affiliation(s)
- Martyna Zagórska-Dziok
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (A.M.)
| | - Anna Nowak
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland; (A.N.); (A.M.-S.)
| | - Anna Muzykiewicz-Szymańska
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland; (A.N.); (A.M.-S.)
| | - Aleksandra Ziemlewska
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (A.M.)
| | - Zofia Nizioł-Łukaszewska
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (A.M.)
| | - Agnieszka Mokrzyńska
- Department of Technology of Cosmetic and Pharmaceutical Products, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland; (M.Z.-D.); (A.Z.); (Z.N.-Ł.); (A.M.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, Aleje Raclawickie 1, 20-059 Lublin, Poland;
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, Aleje Raclawickie 1, 20-059 Lublin, Poland;
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Macario A, López JC, Blanco S. Molecular Structure of Salicylic Acid and Its Hydrates: A Rotational Spectroscopy Study. Int J Mol Sci 2024; 25:4074. [PMID: 38612884 PMCID: PMC11012204 DOI: 10.3390/ijms25074074] [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: 03/07/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
We present a study of salicylic acid and its hydrates, with up to four water molecules, done by employing chirped-pulse Fourier transform microwave spectroscopy. We employed the spectral data set of the parent, 13C, and 2H isotopologues to determine the molecular structure and characterize the intra- and intermolecular interactions of salicylic acid and its monohydrate. Complementary theoretical calculations were done to support the analysis of the experimental results. For the monomer, we analyzed structural properties, such as the angular-group-induced bond alternation (AGIBA) effect. In the microsolvates, we analyzed their main structural features dominated by the interaction of water with the carboxylic acid group. This work contributes to seeding information on how water molecules accumulate around this group. Moreover, we discussed the role of cooperative effects further stabilizing the observed inter- and intramolecular hydrogen bond interactions.
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Affiliation(s)
- Alberto Macario
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, IU CINQUIMA, Universidad de Valladolid, 47011 Valladolid, Spain; (A.M.); (J.C.L.)
- Département de Physique Moléculaire, IPR (Institut de Physique de Rennes), CNRS-UMP 6251, Université de Rennes, F-35000 Rennes, France
| | - Juan Carlos López
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, IU CINQUIMA, Universidad de Valladolid, 47011 Valladolid, Spain; (A.M.); (J.C.L.)
| | - Susana Blanco
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, IU CINQUIMA, Universidad de Valladolid, 47011 Valladolid, Spain; (A.M.); (J.C.L.)
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Lo A, Greenzaid JD, Gantz HY, Chodri K, Feldman SR. Clinical pharmacokinetics and pharmacodynamics of topical non-biological therapies for psoriasis patients. Expert Opin Drug Metab Toxicol 2024; 20:235-248. [PMID: 38553411 DOI: 10.1080/17425255.2024.2337749] [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: 02/06/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
INTRODUCTION Psoriasis is a chronic inflammatory cutaneous disease that causes patients psychosocial distress. Topical therapies are utilized for mild-to-moderate disease and for more severe disease in conjunction with systemic therapies. Topical corticosteroids are a cornerstone of treatment for psoriasis, but long-term use can cause stria and cutaneous atrophy and as well as systemic side effects such as topical steroid withdrawal. Non-steroidal topical therapies tend to be safer than topical corticosteroids for long-term use. AREAS COVERED We conducted a literature review on the pharmacokinetic (PK) and pharmacodynamic (PD) properties of topical therapies for psoriasis. We discuss how the PK and PD characteristics of these therapies inform clinicians on efficacy and toxicity when prescribing for patients. EXPERT OPINION Topical corticosteroids, used intermittently, are very safe and effective. Long-term, continuous use of topical corticosteroids can cause systemic side effects. Several generic and newly approved non-steroidal options are available, but no head-to-head studies compare the effectiveness of the generics (vitamin D analogs, tacrolimus, pimecrolimus) against the newer therapies (roflumilast, tapinarof). Patients often do not respond to topical therapies due to poor adherence to treatment regimens. For patients resistant to topical treatment, phototherapy or systemic therapy may be an option.
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Affiliation(s)
- Angela Lo
- University of Central Florida College of Medicine, Orlando, FL, USA
| | - Jonathan D Greenzaid
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Hannah Y Gantz
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Kamran Chodri
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Steven R Feldman
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
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Severino-Freire M, Granier Tournier C, Chiaverini C, Audouze A, Morice-Picard F, Texier H, Dreyfus I, Bing-Lecointe AC, Mallet S, Bodemer C, Fischer J, Jonca N, Mazereeuw-Hautier J. French national protocol for the management of congenital ichthyosis. Ann Dermatol Venereol 2024; 151:103247. [PMID: 38513308 DOI: 10.1016/j.annder.2024.103247] [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: 02/23/2023] [Accepted: 09/27/2023] [Indexed: 03/23/2024]
Abstract
Congenital ichthyoses (CI) comprise a heterogeneous group of monogenic genetic skin diseases characterized by diffuse scaling, often associated with skin inflammation. Diagnosis of the individual form of ichthyosis is complex and is guided by clinical expertise. CI usually has a major impact on quality of life (QOL) and thus requires lifelong treatment. To date, there are no curative therapies, although various symptomatic treatment options exist. The present protocol for the management of CI has been drawn up in accordance with the recommendations published in 2012 by the French National Authority for Health, based on a literature review, with the help and validation of members of the French network for rare skin diseases (FIMARAD). It provides a summary of evidence and expert-based recommendations and is intended to help clinicians with the management of these rare and often complex diseases.
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Affiliation(s)
- M Severino-Freire
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - C Granier Tournier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - C Chiaverini
- University Hospital Center of Nice, Department of Dermatology, Archet 2 Hospital, CS 23079, 06202 Nice Cedex 3, France
| | - A Audouze
- Association Ichtyose France, 37 rue du Golf, 03700 Bellerive sur Allier, France
| | - F Morice-Picard
- Department of Dermatology, University Hospital Center of Bordeaux - Hôpital Saint André, 1 Rue Jean Burguet, 33075 Bordeaux Cedex, France
| | - H Texier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - I Dreyfus
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - A-C Bing-Lecointe
- Hospital Annecy-Genevois site Annecy, 1 Avenue De L'hôpital, 74370 Annecy, France
| | - S Mallet
- Department of Dermatology, University Hospital Center of Marseille, 264 rue Saint-Pierre, 13005 Marseille, France
| | - C Bodemer
- Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Hôpital Necker-Enfants Malades, AP-HP, 149 Rue de Sèvres, 75743 Paris cedex 15, France
| | - J Fischer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 153, 79110 Freiburg, Germany
| | - N Jonca
- University Hospital Center of Toulouse, Hôpital Purpan, Cell Biology and Cytology Laboratory, Institut Fédératif de Biologie, Toulouse F-31300, France
| | - J Mazereeuw-Hautier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France.
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Nazeri Z, Abdeveiszadeh N, Zarezade V, Azizidoost S, Cheraghzadeh M, Aberumand M, Kheirollah A. Investigating the Effect of Aspirin on apoAI-Induced ATP Binding Cassette Transporter 1 Protein Expression and Cholesterol Efflux in Human Astrocytes. Adv Biomed Res 2024; 13:16. [PMID: 38525390 PMCID: PMC10958728 DOI: 10.4103/abr.abr_417_22] [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: 12/07/2022] [Revised: 09/13/2023] [Accepted: 09/17/2023] [Indexed: 03/26/2024] Open
Abstract
Background Neurons need a high amount of cholesterol to maintain the stability of their membrane-rich structures. Astrocytes synthesize and distribute cholesterol to neurons, and ABCA1 is a key mediator of cholesterol efflux to generate HDL for cholesterol transport in the brain. Several studies imply the effect of aspirin on ABCA1 expression in peripheral cells such as macrophages. Here, we compared the effect of aspirin with apoA-I on ABCA1 protein expression and cholesterol efflux in human astrocytes. Materials and Methods Human astrocytes were cultured, and the effects of aspirin on the expression and protein levels of ABCA1 were investigated through RT-PCR and Western blot analysis. Additionally, the effect of co-treatment with apoA-I and aspirin on ABCA1 protein level and cholesterol efflux was evaluated. Results Dose and time-course experiments showed that the maximum effect of aspirin on ABCA1 expression occurred at a concentration of 0.5 mM after 12 h of incubation. RT-PCR and western blot data showed that aspirin upregulates ABCA1 expression by up to 4.7-fold and its protein level by 67%. Additionally, co-treatment with aspirin and apoA-I increased cholesterol release from astrocytes, indicating an additive effect of aspirin on apoAI-mediated cholesterol efflux. Conclusions The results suggest a potential role of aspirin in increasing ABCA1 expression and cholesterol efflux in astrocytes, similar to the effect of apoA-I. This indicates that aspirin could potentially regulate brain cholesterol balance and can be considered in certain neurological diseases, in particular in some neurological disorders related to cholesterol accumulation such as Alzheimer's disease.
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Affiliation(s)
- Zahra Nazeri
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Abdeveiszadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vahid Zarezade
- Department of Biochemistry, School of Medicine, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Cheraghzadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Aberumand
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Kheirollah
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- 548-E Borwell Research Building, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
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Zhang L, Sathiyaseelan A, Zhang X, Lu Y, Wang MH. Development and Analysis of Silver Nitroprusside Nanoparticle-Incorporated Sodium Alginate Films for Banana Browning Prevention. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:292. [PMID: 38334563 PMCID: PMC10856574 DOI: 10.3390/nano14030292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/10/2024]
Abstract
Banana (Musa acuminate) has been popular among consumers worldwide due to its rich nutrients and minerals. However, bananas are highly susceptible to the physical and biological factors that lead to postharvest loss during transportation and storage. In this work, novel sodium alginate (SA) films incorporated with silver nitroprusside nanoparticles (AgNNPs) were prepared to extend the shelf life of bananas through antibacterial and antioxidant coating. The results exhibited that AgNNPs were cubical and that their size was <500 nm, with metal composition being Ag and Fe. Additionally, the incorporation of AgNNPs in the SA film was seen in FE-SEM and zeta analysis, with an average size of about 365.6 nm. Furthermore, the functional and crystalline properties of AgNNPs were assessed through FTIR and XRD. Transmittance testing of the SA-AgNNPs films confirmed they have good UV barrier properties. SA-AgNNPs films exhibited excellent high antibacterial activity against foodborne pathogens including L. monocytogenes, S. enterica, and E. coli at the concentration of 500 µg/mL. Moreover, during the storage of bananas, SA-AgNNPs nanocomposite coatings act as a barrier to microbial contamination and slow down the ripening of bananas. As a result, compared with SA-coated and uncoated bananas, SA-AgNNPs-coated bananas exhibited the lowest weight loss and lowest total bacterial colonies, thus greatly extending their shelf life. Particularly when coated with SA-AgNNPs films, total bacterial colonies (TBC) in the banana peel and pulp were as low as 1.13 × 103 and 51 CUF/g on the ninth day of storage, respectively. Our work offers an efficient strategy to improve the quality of bananas during the postharvest period, with extensive applications in fruit preservation and food packing.
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Affiliation(s)
- Lina Zhang
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea; (L.Z.); (A.S.); (X.Z.); (Y.L.)
| | - Anbazhagan Sathiyaseelan
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea; (L.Z.); (A.S.); (X.Z.); (Y.L.)
| | - Xin Zhang
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea; (L.Z.); (A.S.); (X.Z.); (Y.L.)
| | - Yuting Lu
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea; (L.Z.); (A.S.); (X.Z.); (Y.L.)
| | - Myeong-Hyeon Wang
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Republic of Korea; (L.Z.); (A.S.); (X.Z.); (Y.L.)
- KIIT (Kangwon Institute of Inclusive Technology), Kangwon National University, Chuncheon 24341, Republic of Korea
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Mamaligka AM, Dodou K. Studies on Loading Salicylic Acid in Xerogel Films of Crosslinked Hyaluronic Acid. Gels 2024; 10:54. [PMID: 38247777 PMCID: PMC10815332 DOI: 10.3390/gels10010054] [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: 12/21/2023] [Revised: 01/06/2024] [Accepted: 01/07/2024] [Indexed: 01/23/2024] Open
Abstract
During the last decades, salicylic acid (SA) and hyaluronic acid (HA) have been studied for a wide range of cosmetic and pharmaceutical applications. The current study investigated the drug loading potential of SA in HA-based crosslinked hydrogel films using a post-loading (osmosis) method of the unmedicated xerogels from saturated aqueous solutions of salicylic acid over a range of pH values. The films were characterized with Fourier-transform infra-red spectroscopy (FT-IR) and ultraviolet-visible (UV-Vis) spectrophotometry in order to elucidate the drug loading profile and the films' integrity during the loading process. Additional studies on their weight loss (%), gel fraction (%), thickness increase (%) and swelling (%) were performed. Overall, the studies showed significant film disintegration at highly acidic and basic solutions. No drug loading occurred at neutral and basic pH, possibly due to the anionic repulsion between SA and HA, whereas at, pH 2.1, the drug loading was promising and could be detected via UV-Vis analysis of the medicated solutions, with the SA concentration in the xerogel films at 28% w/w.
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Affiliation(s)
| | - Kalliopi Dodou
- School of Health and Life Sciences, University of Teesside, Middlesborough TS13BX, UK
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Kulkarni A, Shrivastava P, Phulara RK. Timely Hemodialysis for Successful Treatment of Acute Salicylate Overdose in a Young Adult Female - A Case Report. Indian J Nephrol 2024; 34:67-69. [PMID: 38645910 PMCID: PMC11003594 DOI: 10.4103/ijn.ijn_141_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 08/30/2022] [Indexed: 04/23/2024] Open
Abstract
Salicylates are often used in clinical practice as antiplatelets as well as analgesics. Its overdose is not uncommon due to its easy availability over the counter. Mortality is high in severe cases when a lethal dose is consumed. Treatment of overdose is difficult due to the non-availability of an antidote. Hemodialysis is an underutilized treatment modality in such cases. We discuss here a case of a young female who presented to us 2.5 h after the consumption of a lethal dose of salicylate with symptoms of only tinnitus. She was successfully treated with two sessions of hemodialysis. Her drug levels on admission were remarkably high, and early hemodialysis was justified in view of high-dose consumption with minimal symptoms.
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Du J, Zhao L, Kang Q, He Y, Bi Y. An optimized method for Oil Red O staining with the salicylic acid ethanol solution. Adipocyte 2023; 12:2179334. [PMID: 36779587 PMCID: PMC9980477 DOI: 10.1080/21623945.2023.2179334] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Oil Red O (ORO) staining is a commonly used experimental technique to detect lipid content in cells or tissues. Freshly prepared ORO in 60% isopropanol is the most widely used method at present. However, isopropanol is volatile and harmful to the human body. It will also affect the interpretation of the results due to the formation of crystals and non-specific diffuse staining. In this paper, by screening and validation, we report a salicylic acid ethanol solution (containing 50% ethanol, 5%-10% salicylic acid) for the preparation of ORO solution, which has a better staining effect on lipid staining in cells and tissues, with a clean background and short dyeing time. What's more, this ORO solution is non-toxic, convenient to prepare, and can be stored for a long time. Therefore, it is reliable, easy to operate, and can be widely popularized and applied in laboratories.
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Affiliation(s)
- Junbao Du
- Stem Cell Biology and Therapy Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Li Zhao
- Stem Cell Biology and Therapy Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Quan Kang
- Stem Cell Biology and Therapy Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Yun He
- Stem Cell Biology and Therapy Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Yang Bi
- Stem Cell Biology and Therapy Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
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12
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Gamelas SRD, Tomé JPC, Tomé AC, Lourenço LMO. Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials. RSC Adv 2023; 13:33957-33993. [PMID: 38019980 PMCID: PMC10658578 DOI: 10.1039/d3ra06598g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023] Open
Abstract
Access to clean water is increasingly challenging worldwide due to human activities and climate change. Wastewater treatment and utilization offer a promising solution by reducing the reliance on pure underground water. However, it is crucial to develop efficient and sustainable methods for wastewater purification. Among the emerging wastewater treatment strategies, photocatalysis has gained significant attention for decomposing organic pollutants in water, especially when combined with sunlight and a recoverable photocatalyst. Heterogeneous photocatalysts have distinct advantages, as they can be recovered and reused without significant loss of activity over multiple cycles. Phthalocyanine dyes, with their exceptional photophysical properties, are particularly valuable for homogeneous and heterogeneous photocatalysis. By immobilizing these photosensitizers in various supports, hybrid materials extend their light absorption into the visible spectrum, complementing most supports' limited UV light absorption. The novelty and research importance of this review stems from its discussion of the multifaceted approach to treating contaminated wastewater with phthalocyanines and materials containing phthalocyanines. It highlights key aspects of each study, including photocatalytic efficiency, recyclability characteristics, investigation of the generation of oxygen species responsible for degradation, identification of the major degradation byproducts for each pollutant, and others. Moreover, the review includes tables that illustrate and compare the various phthalocyanines and supporting materials employed in each study for pollutant degradation. Additionally, almost all photocatalysts mentioned in this review could degrade at least 5% of the pollutant, and more than 50 photocatalysts showed photocatalytic rates above 50%. When immobilized in some support, the synergistic effect of the phthalocyanine was visible in the photocatalytic rate of the studied pollutant. However, when performing these types of works, it is necessary to understand the degradation products of each pollutant and their relative toxicities. Along with this, recyclability and stability studies are also necessary. Despite the good results presented in this review, some of the works lack those studies. Moreover, none of the works mentions any study in wastewater.
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Affiliation(s)
- Sara R D Gamelas
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro 3810-193 Aveiro Portugal
| | - João P C Tomé
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa 1049-001 Lisboa Portugal
| | - Augusto C Tomé
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro 3810-193 Aveiro Portugal
| | - Leandro M O Lourenço
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro 3810-193 Aveiro Portugal
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13
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Cruz P, Cuccaro A, Pretti C, He Y, Soares AMVM, Freitas R. Comparative subcellular responses to pharmaceutical exposures in the mussel Mytilus galloprovincialis: An in vitro study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 104:104314. [PMID: 37979633 DOI: 10.1016/j.etap.2023.104314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
Pharmaceutical active compounds (PhACs) have raised concerns in the last decade due to their increased consumption and inadequate elimination during discharge, resulting in their introduction into water systems and potential significant threats to non-target organisms. However, few studies have investigated the sublethal impacts of PhAC exposure on marine invertebrates. Thus, the present study aimed to assess tissue-specific responses in Mytilus galloprovincialis to sodium lauryl sulfate (SLS), salicylic acid (SA), and caffeine (CAF) (4.0 mg/L, 4.0 mg/L and 2.0 μg/L, respectively). Short-term in vitro exposures with mussel digestive gland and gill tissues were conducted and biochemical responses related to antioxidant and detoxification capacity, cellular damage and neurotoxicity were assessed. The present results clearly showed significant differences in tissue sensitivity and biochemical responses to the contaminants tested. This study highlights the suitability of filter-feeder species as valuable model organisms for studying the sublethal effects of unintended environmental exposures to PhACs.
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Affiliation(s)
- Patrícia Cruz
- Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Alessia Cuccaro
- Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, Portugal; CESAM-Centre for Environmental and Sea Studies, Universidade de Aveiro, 3810-193 Aveiro, Portugal; Department of Veterinary Sciences, University of Pisa, San Piero a Grado (PI), 56122, Italy
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado (PI), 56122, Italy; Interuniversity Consortium of Marine Biology of Leghorn "G. Bacci", Livorno 57128, Italy
| | - Yide He
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Amadeu M V M Soares
- Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, Portugal; CESAM-Centre for Environmental and Sea Studies, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia, Universidade de Aveiro, 3810-193 Aveiro, Portugal; CESAM-Centre for Environmental and Sea Studies, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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14
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Shahab-Navaei F, Asoodeh A. Synthesis of optimized propolis solid lipid nanoparticles with desirable antimicrobial, antioxidant, and anti-cancer properties. Sci Rep 2023; 13:18290. [PMID: 37880491 PMCID: PMC10600131 DOI: 10.1038/s41598-023-45768-y] [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: 08/26/2023] [Accepted: 10/24/2023] [Indexed: 10/27/2023] Open
Abstract
This study aimed to produce stable propolis nanoparticles with a size below 100 nm, suitable for various applications in industries such as pharmaceuticals, medicine, cosmetics, food, and packaging. To achieve this, propolis solid lipid nanoparticles (PSLNs) were synthesized using the hot homogenization method, and the optimized nanoparticles were analyzed using Design Expert software. The properties of the synthesized PSLN were characterized using UV-visible spectroscopy, FTIR, XRD, PSA, TEM, and zeta potential analysis. The results indicated that PSLNs with a size range of 57 ± 15 nm remained stable in an aqueous medium at pH 7.4. HPLC analysis showed that the active ingredient of phenols and flavonoids in the extract remained stable after the formation of PSLNs. Antioxidant and antibacterial properties of the extract and nanoparticles were also evaluated. The results demonstrated that the biological properties of the extract were effectively preserved in PSLNs, Additionally, the PSLN synthesized exhibited remarkable anticancer properties against the A549 cell line and with IC50 of 0.01 mg/ml after 72 h-treatment. In conclusion, the optimized PSLNs can be utilized as antioxidant and antibacterial additives and have the potential to be used as a drug or drug carrier for the treatment of lung cancer.
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Affiliation(s)
- Fatemeh Shahab-Navaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Cellular and Molecular Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.
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15
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Cecone C, Iudici M, Ginepro M, Zanetti M, Trotta F, Bracco P. Dextrin-Based Adsorbents Synthesized via a Sustainable Approach for the Removal of Salicylic Acid from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2805. [PMID: 37887955 PMCID: PMC10609289 DOI: 10.3390/nano13202805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Pharmaceuticals such as salicylic acid are commonly detected in wastewater and surface waters, increasing concern for possible harmful effects on humans and the environment. Their difficult removal via conventional treatments raised the need for improved strategies, among which the development of bioderived adsorbents gained interest because of their sustainability and circularity. In this work, biobased cross-linked adsorbents, synthesized via a sustainable approach from starch derivatives, namely beta-cyclodextrins and maltodextrins, were at first characterized via FTIR-ATR, TGA, SEM, and elemental analysis, showing hydrophilic granular morphologies endowed with specific interaction sites and thermal stabilities higher than 300 °C. Subsequently, adsorption tests were carried out, aiming to assess the capabilities of such polymers on the removal of salicylic acid, as a case study, from water. Batch tests showed rapid kinetics of adsorption with a removal of salicylic acid higher than 90% and a maximum adsorption capacity of 17 mg/g. Accordingly, continuous fixed bed adsorption tests confirmed the good interaction between the polymers and salicylic acid, while the recycling of the adsorbents was successfully performed up to four cycles of use.
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Affiliation(s)
- Claudio Cecone
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
| | - Mario Iudici
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
| | - Marco Ginepro
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
| | - Marco Zanetti
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
- INSTM Reference Centre, University of Turin, Via G. Quarello 15A, 10135 Turin, Italy
- ICxT Interdepartmental Centre, University of Turin, Via Lungo Dora Siena 100, 10153 Turin, Italy
| | - Francesco Trotta
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
| | - Pierangiola Bracco
- Department of Chemistry, Nis Interdepartmental Centre, University of Turin, Via P. Giuria 7, 10125 Turin, Italy (M.G.); (M.Z.); (P.B.)
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16
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Rezaei N, Seidi S, Fotouhi M. On-chip electromembrane extraction using deep eutectic solvent and red-green-blue analysis by quick-response code readable customized application on a smartphone for measuring salicylic acid in pharmaceutical and plasma samples. J Chromatogr A 2023; 1708:464347. [PMID: 37696125 DOI: 10.1016/j.chroma.2023.464347] [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: 06/05/2023] [Revised: 08/19/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023]
Abstract
The current work presents an on-chip electromembrane extraction (OC-EME) method using deep eutectic solvent followed by QR code-based red-green-blue (RGB) analysis for measuring salicylic acid (SA) in plasma and pharmaceutical samples. The RGB analysis was performed based on forming the SA-Fe3+ complex in the acceptor phase giving a purple solution. The QR code readable customized app provided rapid, easy, and cost-less qualification and quantification of SA with the aid of principal component analysis (PCA). Parameters affecting OC-EME, including the supported liquid membrane (SLM), pH of the donor and acceptor phases, applied voltage, and sample flow rate, were optimized. Also, the concentration of FeCl3, as a chromogenic reagent, and its reaction time with SA were investigated to find the best concentration-dependent signal. Under the optimized conditions, a good relationship was observed between the green intensity and SA concentration within the range of 1.0-100.0 mg l-1 (R2 = 0.9946) in water and 5.0-100.0 mg l-1 (R2 = 0.9902) in plasma. Intra- and inter-day RSDs% were obtained less than 4.7% and 7.7%, respectively. Finally, the method was successfully applied for measuring SA in foot corn treatment, Aspirin medicines, and human plasma, with relative recoveries between 89.0 and 129.2%.
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Affiliation(s)
- Neda Rezaei
- Department of Analytical Chemistry, Faculty of Chemistry, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran; Nanomaterial, Separation and Trace Analysis Research Lab, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran
| | - Shahram Seidi
- Department of Analytical Chemistry, Faculty of Chemistry, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran; Nanomaterial, Separation and Trace Analysis Research Lab, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran.
| | - Mina Fotouhi
- Department of Analytical Chemistry, Faculty of Chemistry, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran; Nanomaterial, Separation and Trace Analysis Research Lab, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran 15418-49611, Iran
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17
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Gerner E, Giraldo-Osorno PM, Johansson Loo A, Firdaus R, Ben Amara H, Werthén M, Palmquist A, Thomsen P, Omar O, Almqvist S, Trobos M. Targeting Pseudomonas aeruginosa quorum sensing with sodium salicylate modulates immune responses in vitro and in vivo. Front Cell Infect Microbiol 2023; 13:1183959. [PMID: 37614559 PMCID: PMC10442818 DOI: 10.3389/fcimb.2023.1183959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/18/2023] [Indexed: 08/25/2023] Open
Abstract
Introduction Chronic infections are a major clinical challenge in hard-to-heal wounds and implanted devices. Pseudomonas aeruginosa is a common causative pathogen that produces numerous virulence factors. Due to the increasing problem of antibiotic resistance, new alternative treatment strategies are needed. Quorum sensing (QS) is a bacterial communication system that regulates virulence and dampens inflammation, promoting bacterial survival. QS inhibition is a potent strategy to reduce bacterial virulence and alleviate the negative impact on host immune response. Aim This study investigates how secreted factors from P. aeruginosa PAO1, cultured in the presence or absence of the QS inhibitor sodium salicylate (NaSa), influence host immune response. Material and methods In vitro, THP-1 macrophages and neutrophil-like HL-60 cells were used. In vivo, discs of titanium were implanted in a subcutaneous rat model with local administration of P. aeruginosa culture supernatants. The host immune response to virulence factors contained in culture supernatants (+/-NaSa) was characterized through cell viability, migration, phagocytosis, gene expression, cytokine secretion, and histology. Results In vitro, P. aeruginosa supernatants from NaSa-containing cultures significantly increased THP-1 phagocytosis and HL-60 cell migration compared with untreated supernatants (-NaSa). Stimulation with NaSa-treated supernatants in vivo resulted in: (i) significantly increased immune cell infiltration and cell attachment to titanium discs; (ii) increased gene expression of IL-8, IL-10, ARG1, and iNOS, and (iii) increased GRO-α protein secretion and decreased IL-1β, IL-6, and IL-1α secretion, as compared with untreated supernatants. Conclusion In conclusion, treating P. aeruginosa with NaSa reduces the production of virulence factors and modulates major immune events, such as promoting phagocytosis and cell migration, and decreasing the secretion of several pro-inflammatory cytokines.
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Affiliation(s)
- Erik Gerner
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
- Mölnlycke Health Care AB, Gothenburg, Sweden
| | - Paula Milena Giraldo-Osorno
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Anna Johansson Loo
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rininta Firdaus
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Heithem Ben Amara
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Werthén
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Omar Omar
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Margarita Trobos
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
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Butala S, Mazereeuw-Hautier J, Paller AS. Ichthyosis: presentation and management. Curr Opin Pediatr 2023; 35:467-474. [PMID: 37345742 DOI: 10.1097/mop.0000000000001264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
PURPOSE OF REVIEW This review focuses on the presentation and management of ichthyoses and highlights recent advances in treatment that hold promise for better targeted therapy. RECENT FINDINGS The ichthyoses are a group of rare genetic diseases with a wide phenotypic spectrum, characterized most often by generalized hyperkeratosis and scaling with variable erythema. The highly visible scaling and frequent itch contribute to decreased quality of life. Management for ichthyosis focuses on symptomatic relief and scale reduction with emollients, keratolytics, and retinoids. Recent advances in immune profiling and genotype-phenotype mapping have increased understanding of ichthyosis and shifted focus to pathogenesis-based targeted therapies with emerging biologics, small molecular inhibitors, and gene therapy. SUMMARY This article discusses clinical assessment and genotyping to make the diagnosis of specific forms of ichthyosis, provides guidance for management, and reviews new treatment options with systemic agents.
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Affiliation(s)
- Sneha Butala
- Department of Pediatrics, Yale New Haven Health - Bridgeport Site, Bridgeport, Connecticut; Pediatric Healthcare Associates, Shelton, Connecticut, USA
| | - Juliette Mazereeuw-Hautier
- Centre for Rare Skin Diseases, Dermatology Department, Larrey Hospital, Paul Sabatier University, Toulouse, France
| | - Amy S Paller
- Departments of Dermatology and Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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Afsa S, De Marco G, Cristaldi A, Giannetto A, Galati M, Billè B, Conti GO, Ben Mansour H, Ferrante M, Cappello T. Single and combined effects of caffeine and salicylic acid on mussel Mytilus galloprovincialis: Changes at histomorphological, molecular and biochemical levels. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104167. [PMID: 37286067 DOI: 10.1016/j.etap.2023.104167] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 05/31/2023] [Accepted: 06/03/2023] [Indexed: 06/09/2023]
Abstract
Caffeine (CAF) and salicylic acid (SA) are frequently detected in waterbody, though information on their biological impact is poor. This work assesses the effects of CAF (5ng/L to 10µg/L) and SA (0.05µg/L to 100µg/L) alone and combined as CAF+SA (5ng/L+0.05µg/L to 10µg/L+100µg/L) on mussel Mytilus galloprovincialis under 12-days exposure by histomorphology of digestive gland and oxidative stress defense at molecular and biochemical levels. Besides evaluating tissue accumulation, absence of histomorphological damage and haemocyte infiltration highlighted activation of defensive mechanisms. Up-regulation of Cu/Zn-sod, Mn-sod, cat and gst combined with increased catalase and glutathione S-transferase activity were found in CAF-exposed mussels, while SA reduced ROS production and mitochondrial activity. CAF+SA exposure induced differential responses, and the integrated biomarker response (IBR) revealed more pronounced effects of SA than CAF. These results enlarge knowledge on pharmaceuticals impact on non-target organisms, emphasizing the need for proper environmental risk assessment.
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Affiliation(s)
- Sabrine Afsa
- Research Unit of Analysis and Process Applied to The Environment - APAE (UR17ES32) Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, 5000 Monastir, Tunisia
| | - Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Antonio Cristaldi
- Environmental and Food Hygiene (LIAA), Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, 95123 Catania, Italy
| | - Alessia Giannetto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Mariachiara Galati
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Barbara Billè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Gea Oliveri Conti
- Environmental and Food Hygiene (LIAA), Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, 95123 Catania, Italy
| | - Hedi Ben Mansour
- Research Unit of Analysis and Process Applied to The Environment - APAE (UR17ES32) Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, 5000 Monastir, Tunisia
| | - Margherita Ferrante
- Environmental and Food Hygiene (LIAA), Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, 95123 Catania, Italy
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
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20
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Zhou C, Hua C, Liang Q, Al Rudaisat M, Chen S, Song Y, Zhu J, Cheng H. 0.5-5% Supramolecular Salicylic Acid Hydrogel is Safe for Long-Term Topical Application and Improves the Expression of Genes Related to Skin Barrier Homeostasis in Mice Models. Drug Des Devel Ther 2023; 17:1593-1609. [PMID: 37260764 PMCID: PMC10228590 DOI: 10.2147/dddt.s397541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/12/2023] [Indexed: 06/02/2023] Open
Abstract
Background As a keratolytic, salicylic acid (SA) can be topically applied in various formulations and doses in dermatology. Supramolecular SA hydrogel, a new SA formulation with higher bioavailability, is developed and commercially available nowadays. However, there still remain concerns that the long-term and continual application of SA at low concentrations may jeopardize the cutaneous barrier properties. Aim of the Study To reveal the long-term effects of 0.5-5% supramolecular SA hydrogel on the skin barrier in normal mice models. Materials and Methods The 0.5%, 1%, 2%, and 5% supramolecular SA hydrogel or hydrogel vehicle without SA was applied to mice's shaved dorsal skin once per day respectively. Tissue samples of the dorsal skin were harvested on day 14 and 28 of the serial application of SA for histopathological observation and transcriptomic analysis. Results Following topical supramolecular SA hydrogel therapy with various concentrations of SA (0.5%, 1%, 2%, and 5%) for 14 days and 28 days, there were no obvious macroscopic signs of impaired cutaneous health and no inflammatory or degenerative abnormalities were observed in histological results. Additionally, the transcriptomic analysis revealed that on day 14, SA dramatically altered the expression of genes related to the extracellular matrix structural constituent. And on day 28, SA regulated gene expression profiles of keratinization, cornified envelope, and lipid metabolism remarkably. Furthermore, the expression of skin barrier related genes was significantly elevated after the application of SA based on RNA-seq results, and this is likely to be associated with the PPAR signaling pathway according to the enrichment analysis. Conclusion Our findings demonstrated that the sustained topical administration of the 0.5-5% supramolecular SA hydrogel for up to 28 days did no harm to normal murine skin and upregulated the expression of genes related to the epidermal barrier.
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Affiliation(s)
- Can Zhou
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Chunting Hua
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Qichang Liang
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Mus’ab Al Rudaisat
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Siji Chen
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Yinjing Song
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Jiang Zhu
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Hao Cheng
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
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Granfone A, Applewhite BP, Palmer BF, Jobbagy S. Case 2-2023: A 76-Year-Old Man with Dizziness and Altered Mental Status. N Engl J Med 2023; 388:264-272. [PMID: 36652358 DOI: 10.1056/nejmcpc2201240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Antonio Granfone
- From the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Massachusetts General Hospital, and the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Harvard Medical School - both in Boston; and the Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas (B.F.P.)
| | - Brooks P Applewhite
- From the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Massachusetts General Hospital, and the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Harvard Medical School - both in Boston; and the Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas (B.F.P.)
| | - Biff F Palmer
- From the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Massachusetts General Hospital, and the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Harvard Medical School - both in Boston; and the Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas (B.F.P.)
| | - Soma Jobbagy
- From the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Massachusetts General Hospital, and the Departments of Medicine (A.G.), Radiology (B.P.A.), and Pathology (S.J.), Harvard Medical School - both in Boston; and the Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas (B.F.P.)
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22
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Gutiérrez-Cerrajero C, Sprecher E, Paller AS, Akiyama M, Mazereeuw-Hautier J, Hernández-Martín A, González-Sarmiento R. Ichthyosis. Nat Rev Dis Primers 2023; 9:2. [PMID: 36658199 DOI: 10.1038/s41572-022-00412-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/02/2022] [Indexed: 01/20/2023]
Abstract
The ichthyoses are a large, heterogeneous group of skin cornification disorders. They can be inherited or acquired, and result in defective keratinocyte differentiation and abnormal epidermal barrier formation. The resultant skin barrier dysfunction leads to increased transepidermal water loss and inflammation. Disordered cornification is clinically characterized by skin scaling with various degrees of thickening, desquamation (peeling) and erythema (redness). Regardless of the type of ichthyosis, many patients suffer from itching, recurrent infections, sweating impairment (hypohidrosis) with heat intolerance, and diverse ocular, hearing and nutritional complications that should be monitored periodically. The characteristic clinical features are considered to be a homeostatic attempt to repair the skin barrier, but heterogeneous clinical presentation and imperfect phenotype-genotype correlation hinder diagnosis. An accurate molecular diagnosis is, however, crucial for predicting prognosis and providing appropriate genetic counselling. Most ichthyoses severely affect patient quality of life and, in severe forms, may cause considerable disability and even death. So far, treatment provides only symptomatic relief. It is lifelong, expensive, time-consuming, and often provides disappointing results. A better understanding of the molecular mechanisms that underlie these conditions is essential for designing pathogenesis-driven and patient-tailored innovative therapeutic solutions.
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Affiliation(s)
- Carlos Gutiérrez-Cerrajero
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Eli Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amy S Paller
- Departments of Dermatology and Paediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | | | | | - Rogelio González-Sarmiento
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
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23
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Mulay MR, Martsinovich N. Interaction of organic pollutants with TiO 2: a density functional theory study of carboxylic acids on the anatase (101) surface. Mol Phys 2023. [DOI: 10.1080/00268976.2023.2165981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Manasi R. Mulay
- Department of Chemistry, University of Sheffield, Sheffield, UK
- Grantham Centre for Sustainable Futures, University of Sheffield, Sheffield, UK
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24
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Wang Q, Wang T, Zhou Y, Gao H. Conversion of fungicide cyprodinil to salts with organic acids: preparation, characterization, advantages. PEST MANAGEMENT SCIENCE 2023; 79:114-124. [PMID: 36100574 DOI: 10.1002/ps.7179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/28/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND As an effective strategy to improve the basic properties of drugs, salt formation was less used in the field of pesticides than the medicine field. It is worth trying to improve the inherent shortcomings of cyprodinil (high Kow values; polymorphism) in this way to enhance its practicality. RESULTS Eight cyprodinil salts (CYP-Salts) were prepared. The properties of CYP-Salts, including solubility in various solvents, polymorphic behavior, soil absorption, photolysis in aquatic water, in vitro fungicidal activity and curative activity, were assessed. It was observed that compared with those of cyprodinil, CYP-Salts had lower soil adsorption, while also having lower log Kow values and could be more easily photodegraded in water. That is, CYP-Salts have lower impacts on water bodies and aquatic organisms than cyprodinil. Three CYP-Salts showed higher in vitro antifungal activities and curative activity. CYP-Salts have enhanced practicality, as they could avoid possible agglomeration caused by recrystallization. CONCLUSION Salt forming enhanced the properties of Cyprodinil in many aspects. CYP-Salts may potentially become a better substitute for cyprodinil. This study offers a more economical and effective strategy to prepare better alternatives to existing fungicides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Qiuxiao Wang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Tao Wang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yifei Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Haixiang Gao
- Innovation Center of Pesticide Research, Department of Applied Chemistry, China Agricultural University, Beijing, China
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25
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A Combined Computational–Experimental Study on the Substrate Binding and Reaction Mechanism of Salicylic Acid Decarboxylase. Catalysts 2022. [DOI: 10.3390/catal12121577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Salicylic acid decarboxylase (SDC) from the amidohydrolase superfamily (AHS) catalyzes the reversible decarboxylation of salicylic acid to form phenol. In this study, the substrate binding mode and reaction mechanism of SDC were investigated using computational and crystallographic methods. Quantum chemical calculations show that the enzyme follows the general mechanism of AHS decarboxylases. Namely, the reaction begins with proton transfer from a metal-coordinated aspartic acid residue (Asp298 in SDC) to the C1 of salicylic acid, which is followed by the C–C bond cleavage, to generate the phenol product and release CO2. Interestingly, the calculations show that SDC is a Mg-dependent enzyme rather than the previously proposed Zn-dependent, and the substrate is shown to be bidentately coordinated to the metal center in the catalysis, which is also different from the previous proposal. These predictions are corroborated by the crystal structure of SDC solved in complex with the substrate analogue 2-nitrophenol. The mechanistic insights into SDC in the present study provide important information for the rational design of the enzyme.
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26
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Wang Y, Long L, Yu Q, Zhang H, Li X, Zhuo L, Wang S, Wang Z. Discovery of carbamate-based Salicylic acid derivatives as novel Cholinesterase inhibitor. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Suen Wah C, Chi Keung C, Yau Tak N, Chun Tat L, Hin Tat F. Prediction rule of supratherapeutic peak serum salicylate level in poisoning patients attending emergency departments. HONG KONG J EMERG ME 2022. [DOI: 10.1177/10249079221138205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Analgesic poisoning is common in Hong Kong. Analgesics containing salicylate are easily available. Salicylate poisoning may be encountered in the daily practice of the accident and emergency department. The issue of routine salicylate screening was discussed in a number of articles, and the viewpoints of most authors were that routine salicylate screening was unnecessary. Objectives: The primary outcome is to explore the predictive factors of supratherapeutic peak serum salicylate level (>2.17 mmol/L) and delineate the role of routine screening serum salicylate level in poisoned patients attending the accident and emergency department. Methods: This is a retrospective cohort study. Poisoning cases presented to Hong Kong Poison Information Centre between 1 July 2008 and 31 October 2020 with serum salicylate level checked were included. The demographics, laboratory parameters and clinical outcomes were reviewed. Results: There were 8673 cases included with serum salicylate level checked, accounting for 17% of all poisoning cases. Sixty-six (0.76%) cases had supratherapeutic peak serum salicylate level and 11 (0.13%) of them were undeclared salicylate ingestion. Worse clinical outcomes were observed in cases with supratherapeutic peak serum salicylate level. Univariate analysis showed that tinnitus, hyperthermia, alkalaemia, metabolic acidosis, respiratory alkalosis and therapeutic use of aspirin were significantly associated with supratherapeutic peak serum salicylate level. Variables with p < 0.3 were entered into the backward stepwise logistic regression by likelihood ratio. A clinical prediction rule with three attributes (tinnitus, therapeutic use of aspirin and partial pressure of CO2 <5 kPa) was derived. It showed 100% sensitivity in internal validation. Conclusion: Serum salicylate level should be checked in poisoned patients with (1) tinnitus, (2) the therapeutic use of aspirin or (3) partial pressure of CO2 <5 kPa in arterial or venous blood gas. Routine salicylate screening remained a tool for clinicians not experienced in toxicology.
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Affiliation(s)
- Chan Suen Wah
- Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - Chan Chi Keung
- Hong Kong Poison Information Centre, K3A, United Christian Hospital, Kwun Tong, Hong Kong
| | - Ng Yau Tak
- Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - Lui Chun Tat
- Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - Fung Hin Tat
- Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong
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28
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Afsa S, De Marco G, Giannetto A, Parrino V, Cappello T, Ben Mansour H, Maisano M. Histological endpoints and oxidative stress transcriptional responses in the Mediterranean mussel Mytilus galloprovincialis exposed to realistic doses of salicylic acid. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 92:103855. [PMID: 35342010 DOI: 10.1016/j.etap.2022.103855] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/23/2021] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Despite the availability of analytic data, little is known about the toxicity of salicylic acid (SA) on aquatic non-target organisms. The present study aimed at evaluating the impact of SA through a short-term exposure of the Mediterranean mussel Mytilus galloprovincialis to five environmentally relevant concentrations of SA. A set of suitable biomarkers was applied at selected time-points on mussel digestive glands, including histological observations and expression of oxidative stress related genes. The obtained results showed a conspicuous hemocytic infiltration among mussel digestive tubules, as confirmed also by a flow cytometric approach that revealed an increase of halinocytes and granulocytes. Interestingly, a significant dose and time dependent decrease in the expression levels of oxidative stress related genes was found in mussels exposed to SA except for the glutathione S-transferase gene that was significantly up-regulated in a time-dependent manner confirming its important role against oxidant species and in the metabolism of pharmaceuticals.
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Affiliation(s)
- Sabrine Afsa
- Research Unit of Analysis and Process Applied to The Environment - APAE (UR17ES32) Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Monastir 5000, Tunisia; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
| | - Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
| | - Alessia Giannetto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
| | - Vincenzo Parrino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy.
| | - Hedi Ben Mansour
- Research Unit of Analysis and Process Applied to The Environment - APAE (UR17ES32) Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Monastir 5000, Tunisia
| | - Maria Maisano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98166, Italy
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29
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Fawzy M, ElKholy B. A practical guide to the safety of topical medications for the pediatric population. Dermatol Ther 2022; 35:e15377. [PMID: 35156280 DOI: 10.1111/dth.15377] [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: 10/07/2021] [Revised: 01/17/2022] [Accepted: 02/11/2022] [Indexed: 11/28/2022]
Abstract
Prescribing topical therapy for a child could be a challenging matter. This is due to the higher susceptibility of children to local and systemic side effects of topical drugs than adults. Herein, we provide clinicians with a practical guide regarding the side effects, precautions, and lower age limit of commonly prescribed topical medications for the pediatric population.
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Affiliation(s)
- Manal Fawzy
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Basma ElKholy
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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30
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Factors Influencing the Formation of Salicylic Acid by Bipolar Membranes Electrodialysis. MEMBRANES 2022; 12:membranes12020149. [PMID: 35207071 PMCID: PMC8877217 DOI: 10.3390/membranes12020149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/17/2022]
Abstract
Salicylic acid is an intermediate product in the synthesis of dyes, medications and aspirin. An electrodialysis module has been constructed with commercial cationic, anionic and bipolar membranes for the conversion of sodium salicylate into salicylic acid. The effect of operating conditions such as applied electric potential, salt concentration, initial acid concentration and volumetric flow on bipolar membrane electrodialysis (BMED) yields were investigated using Taguchi analysis. The results obtained in 210 min of work show an average concentration of salicylic acid of 0.0185 M, an average electric current efficiency of 85.3%, and a specific energy consumption of 2.24 kWh/kg of salicylic acid. It was concluded that the proposed bipolar membrane electrodialysis process is an efficient alternative to produce salicylic acid (SAH) from sodium salicylate (SANa) in an environmentally friendly manner. Furthermore, the production of sodium hydroxide was obtained as a by-product of the process carried out.
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31
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Klebeko J, Ossowicz-Rupniewska P, Świątek E, Szachnowska J, Janus E, Taneva SG, Krachmarova E, Guncheva M. Salicylic Acid as Ionic Liquid Formulation May Have Enhanced Potency to Treat Some Chronic Skin Diseases. Molecules 2021; 27:216. [PMID: 35011452 PMCID: PMC8746858 DOI: 10.3390/molecules27010216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022] Open
Abstract
In recent years, numerous studies have shown that conversion of conventional drugs in ionic liquid (IL) formulation could be a successful strategy to improve their physicochemical properties or suggest a new route of administration. We report the synthesis and detailed characterization of eight salicylic acid-based ILs (SA-ILs) containing cation non-polar or aromatic amino acid esters. Using in vitro assays, we preliminary evaluated the therapeutic potency of the novel SA-ILs. We observed that conversion of the SA into ionic liquids led to a decrease in its cytotoxicity toward NIH/3T3 murine embryo fibroblasts and human HaCaT keratinocytes. It should be mentioned is that all amino acid alkyl ester salicylates [AAOR][SA] inhibit the production of the proinflammatory cytokine IL-6 in LPS-stimulated keratinocytes. Moreover, keratinocytes, pretreated with [PheOMe][SA] and [PheOPr][SA] seem to be protected from LPS-induced inflammation. Finally, the novel compounds exhibit a similar binding affinity to bovine serum albumin (BSA) as the parent SA, suggesting a similar pharmacokinetic profile. These preliminary results indicate that SA-ILs, especially those with [PheOMe], [PheOPr], and [ValOiPr] cation, have the potential to be further investigated as novel topical agents for chronic skin diseases such as psoriasis and acne vulgaris.
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Affiliation(s)
- Joanna Klebeko
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (J.K.); (P.O.-R.); (E.Ś.); (J.S.); (E.J.)
| | - Paula Ossowicz-Rupniewska
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (J.K.); (P.O.-R.); (E.Ś.); (J.S.); (E.J.)
| | - Ewelina Świątek
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (J.K.); (P.O.-R.); (E.Ś.); (J.S.); (E.J.)
| | - Joanna Szachnowska
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (J.K.); (P.O.-R.); (E.Ś.); (J.S.); (E.J.)
| | - Ewa Janus
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (J.K.); (P.O.-R.); (E.Ś.); (J.S.); (E.J.)
| | - Stefka G. Taneva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 21, 1113 Sofia, Bulgaria;
| | - Elena Krachmarova
- Institute of Molecular Biology “Roumen Tsanev”, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 21, 1113 Sofia, Bulgaria;
| | - Maya Guncheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Bl. 9, 1113 Sofia, Bulgaria
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32
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Katakam BK, Munisamy M, Rao TN, Chiramel MJ, Panda M, Gupta S, Pss R, Seetharam KA. Recommendations for Management of Childhood Psoriasis. Indian Dermatol Online J 2021; 12:S71-S85. [PMID: 34976883 PMCID: PMC8664175 DOI: 10.4103/idoj.idoj_965_20] [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: 02/14/2021] [Revised: 03/09/2021] [Accepted: 05/22/2021] [Indexed: 12/17/2022] Open
Abstract
Childhood psoriasis is recognized as a potential multisystem disorder and hence it is imperative to optimize disease management to arrest progression, minimize psychological burden and evolution of metabolic syndrome. Clinical practice recommendations are necessary to assist practitioners in appropriate decision making based on available evidence. Owing to the lack of Indian recommendations on childhood psoriasis, the SIG Pediatric Dermatology under IADVL Academy undertook an evidence-based approach based on published literature on the topic, between January 2000 and July 2020 to frame the recommendations.
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Affiliation(s)
- Bhumesh Kumar Katakam
- Dermatology, Venereology and Leprology, Gandhi Medical College, Secunderabad, Telangana, India
| | - Malathi Munisamy
- Dermatology and STD, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | | | | | - Maitreyee Panda
- Dermatology, IMS and SUM Hospital, Bhubaneswar, Odisha, India
| | - Sandeep Gupta
- Consultant Dermatologist, Balaji Skin Clinic, New Delhi, India
| | - Ranugha Pss
- Dermatology, JSS Medical College and Hospital, JSSAHER, Mysore, Karnataka, India
| | - K A Seetharam
- Dermatology, GSL Medical College, Rajahmundry, India
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33
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Tarika JDD, Dexlin XDD, Madhankumar S, Jayanthi DD, Beaula TJ. Tuning the Computational Evaluation of Spectroscopic, ELF, LOL, NCI analysis and Molecular Docking of Novel Anti COVID-19 Molecule 4-Dimethylamino Pyridinium 3, 5-Dichlorosalicylate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 259:119907. [PMID: 33989977 PMCID: PMC8098044 DOI: 10.1016/j.saa.2021.119907] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/28/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
In this work novel antiviral compound 4-(Dimethylamino) Pyridinium 3, 5-dichlorosalicylate was synthesized and characterized by UV-vis, FT-IR, FT-Raman, 1H NMR and 13C NMR spectra. Quantum chemical computations were carried out by Density functional theory methods at B3LYP level. Electronic stability of the compound arising from hyper conjugative interactions and charge delocalization is investigated using natural bond orbital analysis. Assignments of vibrational spectra have been carried out with the aid of Normal coordinate analysis following the SQMFF methodology. TD-DFT approach was applied to assign the electronic transition observed in UV visible spectrum measured experimentally. Frontier molecular orbital energy gap affirms the bioactivity of the molecule and NCI analysis gives information about inter and intra non covalent interactions. ESP recognises the nucleophilic and electrophilic regions of molecule and the chemical implication of molecule was explained using ELF, LOL. The reactive sites of the compound were studied from the Fukui function calculations and chemical descriptors define the reactivity of the molecule. Molecular docking done with SARS and MERS proteins endorses the bioactivity of molecule and drug likeness factors were calculated to comprehend the biological assets of DADS.
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Affiliation(s)
- J D Deephlin Tarika
- Research Scholar, Register No: 19213082132003, Department of Physics and Research Centre, Malankara Catholic College, Mariagiri 629153, Tamilnadu, India; Affiliated to Manonmaniam Sundaranar University, Abishekapatti-627012, Tirunelveli, Tamilnadu, India
| | - X D Divya Dexlin
- Research Scholar, Register No: 19213082132004, Department of Physics and Research Centre, Malankara Catholic College, Mariagiri 629153,Tamilnadu, India; Affiliated to Manonmaniam Sundaranar University, Abishekapatti-627012, Tirunelveli, Tamilnadu, India
| | - S Madhankumar
- Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, India
| | - D Deva Jayanthi
- Department of Physics and Research Centre, Rani Anna Government College for Women, Gandhi Nagar, Tirunelveli 627008, Tamilnadu, India; Affiliated to Manonmaniam Sundaranar University, Abishekapatti-627012, Tirunelveli, Tamilnadu, India
| | - T Joselin Beaula
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri 629153, Tamilnadu, India; Affiliated to Manonmaniam Sundaranar University, Abishekapatti-627012, Tirunelveli, Tamilnadu, India.
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34
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Li M, Chen J, Liu S, Sun X, Xu H, Gao Q, Chen X, Xi C, Huang D, Deng Y, Zhang F, Gao S, Qiu S, Tao X, Zhai J, Wei H, Yao H, Chen W. Spermine-Related DNA Hypermethylation and Elevated Expression of Genes for Collagen Formation are Susceptible Factors for Chemotherapy-Induced Hand-Foot Syndrome in Chinese Colorectal Cancer Patients. Front Pharmacol 2021; 12:746910. [PMID: 34539419 PMCID: PMC8440935 DOI: 10.3389/fphar.2021.746910] [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: 07/25/2021] [Accepted: 08/13/2021] [Indexed: 01/06/2023] Open
Abstract
Hand-foot syndrome (HFS) is a common capecitabine-based chemotherapy-related adverse event (CRAE) in patients with colorectal cancer (CRC). It is of great significance to comprehensively identify susceptible factors for HFS, and further to elucidate the biomolecular mechanism of HFS susceptibility. We performed an untargeted multi-omics analysis integrating DNA methylation, transcriptome, and metabolome data of 63 Chinese CRC patients who had complete CRAE records during capecitabine-based chemotherapy. We found that the metabolome changes for each of matched plasma, urine, and normal colorectal tissue (CRT) in relation to HFS were characterized by chronic tissue damage, which was indicated by reduced nucleotide salvage, elevated spermine level, and increased production of endogenous cytotoxic metabolites. HFS-related transcriptome changes of CRT showed an overall suppressed inflammation profile but increased M2 macrophage polarization. HFS-related DNA methylation of CRT presented gene-specific hypermethylation on genes mainly for collagen formation. The hypermethylation was accumulated in the opensea and shore regions, which elicited a positive effect on gene expression. Additionally, we developed and validated models combining relevant biomarkers showing reasonably good discrimination performance with the area under the receiver operating characteristic curve values from 0.833 to 0.955. Our results demonstrated that the multi-omics variations associated with a profibrotic phenotype were closely related to HFS susceptibility. HFS-related biomolecular variations in CRT contributed more to the relevant biomolecular mechanism of HFS than in plasma and urine. Spermine-related DNA hypermethylation and elevated expression of genes for collagen formation were closely associated with HFS susceptibility. These findings provided new insights into the susceptible factors for chemotherapy-induced HFS, which can promote the implementation of individualized treatment against HFS.
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Affiliation(s)
- Mingming Li
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jiani Chen
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shaoqun Liu
- Department of Gastric Intestinal Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Xiaomeng Sun
- Research Institute, GloriousMed Clinical Laboratory Co., Ltd., Shanghai, China
| | - Huilin Xu
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Qianmin Gao
- Department of General Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Xintao Chen
- Department of General Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Chaowen Xi
- Research Institute, GloriousMed Clinical Laboratory Co., Ltd., Shanghai, China
| | - Doudou Huang
- Traditional Chinese Medicine Resource and Technology Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Deng
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Feng Zhang
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shouhong Gao
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shi Qiu
- Traditional Chinese Medicine Resource and Technology Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xia Tao
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jingwen Zhai
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Hua Wei
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China.,Department of Pharmacy, 905th Hospital of PLA Navy, Naval Medical University, Shanghai, China
| | - Houshan Yao
- Department of General Surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Wansheng Chen
- Department of Pharmacy, Second Affiliated Hospital of Naval Medical University, Shanghai, China.,Traditional Chinese Medicine Resource and Technology Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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35
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Nguyen TT, Huynh Nguyen TT, Tran Pham BT, Van Tran T, Bach LG, Bui Thi PQ, Ha Thuc C. Development of poly (vinyl alcohol)/agar/maltodextrin coating containing silver nanoparticles for banana (Musa acuminate) preservation. Food Packag Shelf Life 2021. [DOI: 10.1016/j.fpsl.2021.100740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Abstract
ABSTRACT Allergic contact dermatitis from topical drugs is frequent and is seen in 10% to 17% of patients patch tested for suspected contact dermatitis. More than 360 drugs have been implicated as contact allergens, of which-generally-antibiotics, corticosteroids, local anesthetics, and nonsteroidal anti-inflammatory drugs are the most frequent culprits. This article provides an overview of allergic contact dermatitis to topical drugs, discussing their prevalence of sensitization, predisposing factors, clinical manifestations (both typical and atypical), the drugs described as allergens, cross-reactivity and coreactivity, and diagnostic procedures.
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Sunyer-Caldú A, Diaz-Cruz MS. Development of a QuEChERS-based method for the analysis of pharmaceuticals and personal care products in lettuces grown in field-scale agricultural plots irrigated with reclaimed water. Talanta 2021; 230:122302. [PMID: 33934770 DOI: 10.1016/j.talanta.2021.122302] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 12/23/2022]
Abstract
The use of reclaimed water for agricultural irrigation is an increasingly common practice, which recently has found its own European regulatory frame. However, the partial removal of organic contaminants together with other xenobiotic substances in current wastewater treatment plants leads to the occurrence of residues of such pollutants in the treated effluents. Wastewater reclamation techniques are thus required to provide reclaimed water fitting the minimum quality standards set up for irrigation of crops intended for human consumption. This work describes the development and validation of a simple QuEChERS-based extraction and liquid chromatography quadrupole-linear ion trap mass spectrometry (LC-QqLIT-MS/MS) method for the simultaneous quantitative analysis of 55 pharmaceuticals and personal care products (PPCPs) in lettuces irrigated with treated wastewater and reclaimed water. The method showed good recovery rates (80-120%) and low detection limits (0.04-0.8 ng/g dw). In comparison with previous analytical methodologies, this method was simpler, faster and, in most cases, more sensitive. Moreover, is the first one analysing selected personal care products in lettuces. The proposed method was applied to assess the potential transfer of contaminants of urban origin in the use of reclaimed water in agriculture. The case study consisted in the evaluation of the lettuce uptake of the selected contaminants at field scale under two irrigation systems, two soil compositions, and two water types. Benzophenone-2, 4-hydroxybenzophenone, 1H-benzotriazole, 2-(2-Benzotriazol-2-yl)-p-cresol, nalidixic acid, diclofenac, carbamazepine 10,11-epoxy, N-des-methylvenlafaxine, and salicylic acid were transferred to all samples. Highest detected values corresponded to 4-hydroxybenzophenone (84.1 ng/g dw), benzophenone-2 (54.4 ng/g dw), and salicylic acid (53.8 ng/g dw). The best combination to minimize the transfer of the target contaminants from the irrigation water to the lettuces was sprinkling irrigation with water reclaimed by soil infiltration through reactive barriers, and clayey soil.
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Affiliation(s)
- Adrià Sunyer-Caldú
- Institute of Environmental Assessment and Water Research (IDAEA) Severo Ochoa Excellence Center, Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - M Silvia Diaz-Cruz
- Institute of Environmental Assessment and Water Research (IDAEA) Severo Ochoa Excellence Center, Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain.
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Sethy M, Srinivas CR, Krishna V, Chadalavada P. Doughnut Wart Following Salicylic Acid Application: A Rare Case Report. Indian Dermatol Online J 2021; 12:451-453. [PMID: 34211916 PMCID: PMC8202496 DOI: 10.4103/idoj.idoj_415_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/03/2020] [Accepted: 08/04/2020] [Indexed: 11/08/2022] Open
Affiliation(s)
- Mitanjali Sethy
- Department of Dermatology, Venereology and Leprosy, Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, India
| | - Chakravarthi R Srinivas
- Department of Dermatology, Venereology and Leprosy, Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, India
| | - Vamshi Krishna
- Department of Dermatology, Venereology and Leprosy, Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, India
| | - Pragathi Chadalavada
- Department of Dermatology, Venereology and Leprosy, Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, India
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Zhang J, Yu H, Xia X, Zhang S, Huang Q, Li C, Miao Q, Zhu F, Yi J, Zhao Z. Sustainable rosin acid ester as internal electron donors in Ziegler-Natta catalysts for synthesis of isotactic polypropylene with high melt flow rate. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1927753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jiaojiao Zhang
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Hongchao Yu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Xiaoqi Xia
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Shaomeng Zhang
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Qigu Huang
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Chunman Li
- CNPC Key Laboratory of Oil & Gas Storage and Transportation, PetroChina Pipeline R&D Center, Beijing, Hebei Province, China
| | - Qing Miao
- CNPC Key Laboratory of Oil & Gas Storage and Transportation, PetroChina Pipeline R&D Center, Beijing, Hebei Province, China
| | - Feng Zhu
- CNPC Key Laboratory of Oil & Gas Storage and Transportation, PetroChina Pipeline R&D Center, Beijing, Hebei Province, China
| | - Jianjun Yi
- Petrochemical Research Institute, PetroChina, Beijing, China
| | - Zhong Zhao
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, the College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
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Szabelak A, Bownik A. Behavioral and physiological responses of Daphnia magna to salicylic acid. CHEMOSPHERE 2021; 270:128660. [PMID: 33268096 DOI: 10.1016/j.chemosphere.2020.128660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/29/2020] [Accepted: 10/15/2020] [Indexed: 06/12/2023]
Abstract
Salicylic acid (SA), a metabolite of acetylsalicylic acid is a monohydroxybenzoic acid a common non-steroidal analgesic and anti-inflammatory drug (NSAID) frequently detected in various aquatic ecosystems at concentrations up to 19.50 μg L-1 in surface waters near livestock farms and 59.6 μg L-1 in wastewaters. Little is known on the effects of short-term exposure of freshwater crustaceans to salicylic acid. Therefore, the aim of our study was to determine the effects of SA at concentrations of 5 μg L-1, 500 μg L-1, 5 mg L-1, 50 mg L-1 and 500 mg L-1 on the behavior (swimming speed, swimming height, distance travelled) and physiological endpoints (heart rate, mandible movement) of Daphnia magna exposed for 24 h, 48 h and 72 h. The results showed that SA inhibited the swimming speed, swimming height and distance travelled, heart rate and mandible movement at 5 mg L-1, 50 mg L-1 and 500 mg L-1 when compared to the control. On the other hand, SA at 5 μg L-1 and 500 μg L-1 transiently increased swimming speed and distance travelled after 24 h of the exposure, except for swimming height. Behavioral and physiological disturbances were observed much earlier than lethality. Our study showed SA at environmental levels may be an ecotoxicological agent imparing behavior and physiology of freshwater crustaceans.
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Affiliation(s)
- Aleksandra Szabelak
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland
| | - Adam Bownik
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Dobrzańskiego 37, 20-262, Lublin, Poland.
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41
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Wohlrab J. Einfluss von Keratolytika auf die kutane Pharmakokinetik von Glukokortikoiden. J Dtsch Dermatol Ges 2021; 19:554-562. [PMID: 33860993 DOI: 10.1111/ddg.14439_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Wohlrab
- Universitätsklinik und Poliklinik für Dermatologie und Venerologie, Martin-Luther-Universität Halle- Wittenberg, Halle (Saale).,An-Institut für angewandte Dermatopharmazie, Martin-Luther- Universität Halle-Wittenberg, Halle (Saale)
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42
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Sambyal K, Singh RV. Production of salicylic acid; a potent pharmaceutically active agent and its future prospects. Crit Rev Biotechnol 2021; 41:394-405. [PMID: 33618601 DOI: 10.1080/07388551.2020.1869687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Salicylic acid is one of the potent pharmaceutical organic acids that have various applications in the medical field. It acts as a plant hormone and helps in plant's growth & defence against pathogens. Beyond its numerous functions in plants, SA has great pharmaceutical importance since it acts as an intermediate for the synthesis of various drugs and dyes e.g. aspirin. At the industrial scale, chemical methods are used for the synthesis of SA but presently, several other sources are available that have the capability to alternate the chemical process which will be a step forward toward green synthesis. Aim of this paper is to provide comprehensive knowledge of SA production and its biological application.
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Affiliation(s)
- Krishika Sambyal
- University Institute of Biotechnology, Chandigarh University, Gharuan, Punjab
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43
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Sunscreens and their usefulness: have we made any progress in the last two decades? Photochem Photobiol Sci 2021; 20:189-244. [PMID: 33721254 DOI: 10.1007/s43630-021-00013-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 01/13/2021] [Indexed: 12/20/2022]
Abstract
Sunscreens have now been around for decades to mitigate the Sun's damaging ultraviolet (UV) radiation which, although essential for the existence of life, is a recognized prime carcinogen. Accordingly, have suncreams achieved their intended purposes towards protection against sunburns, skin photo-ageing and the like? Most importantly, however, have they provided the expected protection against skin cancers that current sunscreen products claim to do? In the last two decades, there have been tens, if not hundreds of studies on sunscreens with respect to skin protection against UVB (280‒320 nm)-traditionally sunscreens with rather low sun protection factors (SPF) were intended to protect against this type of radiation-and UVA (320‒400 nm) radiation; a distinction between SPF and UVA protection factor (UVA-PF) is made. Many of the studies of the last two decades have focused on protection against the more skin-penetrating UVA radiation. This non-exhaustive article reviews some of the important facets of what is currently known about sunscreens with regard (i) to the physical UV filters titanium dioxide (TiO2) and zinc oxide (ZnO) and the mostly photo-unstable chemical UVB/UVA filters (e.g., octinoxate (OMC) and avobenzone (AVO), among others), (ii) to novel chemical sunscreen agents, (iii) to means that minimize the breakdown of chemical filters and improve their stability when exposed to UV sunlight, (iv) to SPF factors, and (v) to a short discussion on non-melanoma skin cancers and melanoma. Importantly, throughout the article we allude to the safety aspects of sunscreens and at the end ask the question: do active ingredients in sunscreen products pose a risk to human health, and what else can be done to enhance protection? Significant loss of skin protection from two well-known commercial suncreams when exposed to simulated UV sunlight. Cream I: titanium dioxide, ethylhexyl triazone, avobenzone, and octinoxate; Cream II: octyl salicylate, oxybenzone, avobenzone, and octinoxate.
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Wohlrab J. Influence of keratolytics on cutaneous pharmacokinetics of glucocorticoids. J Dtsch Dermatol Ges 2021; 19:554-561. [PMID: 33586342 DOI: 10.1111/ddg.14439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Keratolytics are often used to accelerate and improve the therapeutic response of hyperkeratotic dermatoses. Keratolytics are a chemically inhomogeneous group of substances and substance mixtures that clinically lead to a decrease in symptoms of a cornification disorder, but mediate different effects. Thus, keratolytic, keratoplastic, keratoemulsifying and keratodiluting effects are distinguished. The physicochemical effects or pharmacological efficacy of the respective keratolytics result in different mechanism as well as risks with regard to local or systemic compatibility. Until now, only little attention has been paid upon selection of keratolytics to the immediate consequences regarding diffusion conditions and pharmacokinetics of sequentially applied topicals, in particular of glucocorticoids. PATIENTS AND METHODS This paper deals with the influence of keratolytics on the penetration-time profile of betamethasone dipropionate in sequential application. For this purpose, cutaneous bioavailability was investigated with the Franz chamber test using a tritium-labeled drug depending on the previous application of a keratolytic agent. Comparative data analyses were performed. RESULTS It was shown that keratoplastic substances significantly promote diffusion of the glucocorticoid. Keratoemulsifying substance mixtures exert no relevant effects in this regard, while keratodiluting substance mixtures inhibit penetration. CONCLUSIONS The targeted selection of a keratolytic can optimize the therapeutic effect and influence the bioavailability of sequentially applied topicals.
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Affiliation(s)
- Johannes Wohlrab
- University Hospital and Clinic for Dermatology and Venereology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,Institute of Applied Dermatopharmacy, Martin Luther University Halle- Wittenberg, Halle (Saale), Germany
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45
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Ababutain IM, Alghamdi AI. In vitro anticandidal activity and gas chromatography-mass spectrometry (GC-MS) screening of Vitex agnus-castus leaf extracts. PeerJ 2021; 9:e10561. [PMID: 33505793 PMCID: PMC7789864 DOI: 10.7717/peerj.10561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/22/2020] [Indexed: 12/31/2022] Open
Abstract
Background Candida infections are becoming more drug resistant; it is necessary to search for alternative medications to treat them. Therefore, the present study estimates the anticandidal activity of Vitex agnus-castus (VA-C) leaf extracts. Methods We used the agar well diffusion method to assess the anticandidal activity of three different VA-C leaf extracts (ethanol, methanol, and water) against three Candida species (Candida tropicalis, Candida albicans, and Candida ciferrii). The minimum inhibitory concentration (MIC) was estimated using the two-fold dilution method and the minimum fungicidal concentration (MFC) was determined using the classic pour plate technique. The MFC/MIC ratio was calculated to estimate the microbicidal or microbiostatic activity. A gas chromatography mass spectrometer was used to screen the phytochemicals of the VA-C leaf extracts (ethanol, methanol, and water). Results All VA-C extracts ethanol, methanol, and water were significantly inhibited the growth of the test Candida species and the inhibition activity depended on the solvent used and the Candida species. The results showed that C. tropicalis was the most highly inhibited by all extracts followed by C. albicans and C. ciferrii. The MIC values were 12.5–25 µg/ml, and MFC values were 25–100 µg/ml. The ratios of MFC/MIC were two-fold to four-fold which was considered candidacidal activity. Ninety-five phytochemical compounds were identified by the GC-MS assay for the VA-C leaf extracts. The total number of compounds per extract differed. Methanol had 43 compounds, ethanol had 47 compounds, and water had 52 compounds. The highest compound concentrations were: 4,5-Dichloro-1,3-dioxolan-2-one in ethanol and methanol, 1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl in ethanol, Isobutyl 4-hydroxybenzoate in methanol, and Benzoic acid and 4-hydroxy- in water. These phytochemical compounds belong to different bioactive chemical group such as polyphenols, fatty acids, terpenes, terpenoids, steroids, aldehydes, alcohols, and esters, and most of which have anticandidal activity. Conclusions VA-C leaf extracts may be useful alternatives to anticandidal drugs, based on their effectiveness against all test Candida species at low concentrations. However, appropriate toxicology screening should be conducted before use.
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Affiliation(s)
- Ibtisam Mohammed Ababutain
- Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.,Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Azzah Ibrahim Alghamdi
- Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.,Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Sodium Salicylate Influences the Pseudomonas aeruginosa Biofilm Structure and Susceptibility Towards Silver. Int J Mol Sci 2021; 22:ijms22031060. [PMID: 33494399 PMCID: PMC7865925 DOI: 10.3390/ijms22031060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 01/30/2023] Open
Abstract
Hard-to-heal wounds are typically infected with biofilm-producing microorganisms, such as Pseudomonas aeruginosa, which strongly contribute to delayed healing. Due to the global challenge of antimicrobial resistance, alternative treatment strategies are needed. Here, we investigated whether inhibition of quorum sensing (QS) by sodium salicylate in different P. aeruginosa strains (QS-competent, QS-mutant, and chronic wound strains) influences biofilm formation and tolerance to silver. Biofilm formation was evaluated in simulated serum-containing wound fluid in the presence or absence of sodium salicylate (NaSa). Biofilms were established using a 3D collagen-based biofilm model, collagen coated glass, and the Calgary biofilm device. Furthermore, the susceptibility of 48-h-old biofilms formed by laboratory and clinical strains in the presence or absence of NaSa towards silver was evaluated by assessing cell viability. Biofilms formed in the presence of NaSa were more susceptible to silver and contained reduced levels of virulence factors associated with biofilm development than those formed in the absence of NaSa. Biofilm aggregates formed by the wild-type but not the QS mutant strain, were smaller and less heterogenous in size when grown in cultures with NaSa compared to control. These data suggest that NaSa, via a reduction of cell aggregation in biofilms, allows the antiseptic to become more readily available to cells.
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47
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Song M, Yang F, Su C, Deng B. Characterizing hydrogen bonds in crystalline form of guanidinium salicylate in the terahertz range. RSC Adv 2020; 11:307-319. [PMID: 35423026 PMCID: PMC8691105 DOI: 10.1039/d0ra08053e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/14/2020] [Indexed: 11/21/2022] Open
Abstract
For pharmaceutical compounds with poor solubility, there is an effective method to address this dilemma without tampering their intrinsic chemical properties by forming weak hydrogen bonds. Guanidinium salicylate, which is a typical pharmaceutical salt with a complex crystal structure, was systematically investigated by terahertz time-domain spectroscopy combined with density functional theory in order to obtain the complete information of weak hydrogen bonds. As a result of the influence of weak hydrogen bonds, there are substantial differences between guanidinium salicylate and its parent molecule (salicylic acid) in the experimental fingerprint spectra in the range of 0.2-2.5 THz, such as the number, amplitude and frequency positions of absorption peaks. With the help of isolated molecule density functional theory calculations, the possible sites of weak hydrogen bonds were determined by natural bond orbital analysis. It can be concluded that there is an intricate hydrogen bond network due to the polar distribution of molecular electrostatic potential. Furthermore, all THz absorption peaks were assigned to their corresponding vibrational modes and the complete information of the related hydrogen bonds (including type, role, angle, and bond length) was determined by using dispersion-corrected density functional theory. The results laid a good foundation for further study on the enhancement of solubility of pharmaceutical salts by forming weak hydrogen bonds.
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Affiliation(s)
- Maojiang Song
- Guizhou Metrology Institute Guiyang Guizhou 550003 China
| | - Fei Yang
- Guizhou Metrology Institute Guiyang Guizhou 550003 China
| | - Caixia Su
- School of Big Data and Computer Science, Guizhou Nornal University Guizhou 550001 China
| | - Bing Deng
- Guizhou Metrology Institute Guiyang Guizhou 550003 China
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Dey P, Puppala ER, Naidu VGM, Das G, Ramesh A. Multifunctional Synthetic Amphiphile for Niche Therapeutic Applications: Mitigation of MRSA Biofilms and Potential in Wound Healing. ACS APPLIED BIO MATERIALS 2020; 3:8830-8840. [PMID: 35019558 DOI: 10.1021/acsabm.0c01164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The relentless menace of implant- and skin wound-associated infections caused by methicillin-resistant Staphylococcus aureus (MRSA) biofilms demands the design of therapeutics that have an edge over conventional antibiotics. The present study reports the potential of pluri-active amphiphiles having a 12-carbon alkyl chain and a salicaldehyde head group (C1) or a napthaldehyde head group (C2) in mitigating wound site- and implant-associated MRSA biofilms and as a topical wound healing agent. The amphiphiles impeded S. aureus MRSA 100 biofilm formation on collagen both on extraneous addition and on impregnation into collagen and inflicted damage to MRSA cells embedded in collagen matrix infused with simulated wound fluid, with C1 being more potent than C2. Adhesion of the MRSA biofilm was hampered on C1-coated orthopedic stainless-steel wire, while eluates from C1-coated wires were non-toxic to HEK 293 cells, highlighting the prospect of C1 as an implant-associated antibacterial coating. Upon treatment with C1, expression of the adhesin fnbA gene was low in the MRSA biofilm and downregulated in non-adherent MRSA cells, while δ-toxin (hld) gene expression in the MRSA biofilm increased, implying that C1 hindered cell-cell adhesion and planktonic-biofilm transition and also reduced biofilm adhesion. Oral administration of C1 (300 and 1000 mg/kg) was non-toxic to BALB/c mice as evidenced in stable hematological parameters and normal histopathological features of vital organs. Topical application of C1 (50 and 100 mg/kg) on a skin excision wound in female BALB/c mice resulted in effective wound closure, fibrous tissue proliferation, and tissue reorganization. Confocal microscopy revealed that topical application of C1 in an ex vivo murine skin explant could alleviate invasion of skin by MRSA, while solution-based studies indicated subdued MRSA adhesion onto the skin explants. The pluri-active synthetic amphiphile C1 provides a framework for developing antibacterials that hold translational potential as a therapeutic for implant- and skin wound-associated MRSA infections.
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Affiliation(s)
- Poulomi Dey
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Eswara Rao Puppala
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Guwahati 781125, India
| | - Vegi Ganga Modi Naidu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Guwahati 781125, India
| | - Gopal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Aiyagari Ramesh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
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Singh R, Balogh EA, Feldman SR. Update on IL-17 Inhibitors for Psoriasis. CURRENT DERMATOLOGY REPORTS 2020. [DOI: 10.1007/s13671-020-00322-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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He X, Liu T, Ren K, Chen J, Zhao G, Hu B, Xu A, Jin Y, Zhu Y, Zou C. Salicylic Acid Effects on Flue-Cured Tobacco Quality and Curing Characteristics During Harvesting and Curing in Cold-Stressed Fields. FRONTIERS IN PLANT SCIENCE 2020; 11:580597. [PMID: 33193524 PMCID: PMC7661750 DOI: 10.3389/fpls.2020.580597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/22/2020] [Indexed: 05/30/2023]
Abstract
Salicylic acid (SA) can induce plants to actively enhance abiotic stress resistance. Spraying SA to prevent cold stress in flue-cured tobacco fields can provide theoretical support and practical guidance for the actual protection from cold stress in fields at high altitude in Yunnan. The experiment was performed in Jianchuan County Yunnan Province, China. Honghuadajinyuan, a flue-cured tobacco variety with cold resistance, was used as the research object. SA was tested at two concentrations (0.05 [SA-1] and 0.1 [SA-1] mol L-1) relative to an untreated control (Control) to compare the quality of fresh tobacco leaves, curing characteristics, enzyme activity of antioxidants, and quality of the first-cured tobacco leaves. The tissue structure thickness, SPAD, and plastid pigment content of fresh tobacco leaves were least in the control; there was no significant difference between SA-1 and SA-2. The change of moisture content during curing was SA-1 > SA-2 > Control, and the water loss rate was Control > SA-2 > SA-1, and both varied greatly at 38-48°C. In each curing stage, the carbon and nitrogen metabolites and polyphenols changed most rapidly at 38°C, and the sugar metabolites changed as follows: Control > SA-1 > SA-2. The activities of the antioxidant enzymes superoxide dismutase, peroxidase, and catalase in fresh tobacco leaves were SA-1 > SA-2 > Control. Malondialdehyde content and the inactivation rate of antioxidant enzymes during curing was Control > SA-2 > SA-1. The economic character and sensory smoking quality of flue-cured tobacco leaves were SA-1 > SA-2 > Control. In high-altitude tobacco planting areas prone to cold stress in the field, early warning weather forecast and field spraying 0.05 mol L-1 SA are beneficial to protect and improve the quality of fresh tobacco leaves, curing characteristics, antioxidant system enzyme activities, and the quality of flue-cured tobacco leaves.
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Affiliation(s)
- Xian He
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Tianxiang Liu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Ke Ren
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Jie Chen
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Gaokun Zhao
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Binbin Hu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Anchuan Xu
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Yan Jin
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Yanmei Zhu
- Tobacco Monopoly Administration of Yunnan Wenshan Prefecture, Wenshan, China
| | - Congming Zou
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
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