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Hasnain M, Kanwal T, Rehman K, Rehman SRU, Aslam S, Roome T, Perveen S, Zaidi MB, Saifullah S, Yasmeen S, Hasan A, Shah MR. Microarray needles comprised of arginine-modified chitosan/PVA hydrogel for enhanced antibacterial and wound healing potential of curcumin. Int J Biol Macromol 2023; 253:126697. [PMID: 37673138 DOI: 10.1016/j.ijbiomac.2023.126697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
Wound healing is a multifaceted and complex process that includes inflammation, hemostasis, remodeling, and granulation. Failures in any link may cause the healing process to be delayed. As a result, wound healing has always been a main research focus across the entire medical field, posing significant challenges and financial burdens. Hence, the current investigation focused on the design and development of arginine-modified chitosan/PVA hydrogel-based microneedles (MNs) as a curcumin (CUR) delivery system for improved wound healing and antibacterial activity. The substrate possesses exceptional swelling capabilities that allow tissue fluid from the wound to be absorbed, speeding up wound closure. The antibacterial activity of MNs was investigated against S. aureus and E. coli. The results revealed that the developed CUR-loaded MNs had increased antioxidant activity and sustained drug release behavior. Furthermore, after being loaded in the developed MNs, it revealed improved antibacterial activity of CUR. Wound healing potential was assessed by histopathological analysis and wound closure%. The observed results suggest that the CUR-loaded MNs greatly improved wound healing potential via tissue regeneration and collagen deposition, demonstrating the potential of developed MNs patches to be used as an effective carrier for wound healing in healthcare settings.
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Affiliation(s)
- Muhammad Hasnain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Tasmina Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Khadija Rehman
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Syed Raza Ur Rehman
- Mechanical and Industrial Engineering, Qatar University, 2713, Doha, Qatar; Biomedical Research Center, Qatar University, 2713, Doha, Qatar.
| | - Shazmeen Aslam
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Talat Roome
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan; Molecular Pathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Samina Perveen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, PR China
| | - Midhat Batool Zaidi
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Salim Saifullah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; Pakistan Forest Institute Peshawar, Pakistan
| | - Saira Yasmeen
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Anwarul Hasan
- Mechanical and Industrial Engineering, Qatar University, 2713, Doha, Qatar; Biomedical Research Center, Qatar University, 2713, Doha, Qatar
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Hasan A, Roome T, Wahid M, Ansari SA, Khan JA, Kiyani A, Jilani SNA. A novel experimental model to investigate fungal involvement shows expression of Dectin-1 in periapical lesion pathogenesis. J Oral Rehabil 2023; 50:1043-1057. [PMID: 37263973 DOI: 10.1111/joor.13528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Candida albicans is linked to persistent endodontic lesions. However, the recognition receptor that identifies it is not explored previously. OBJECTIVES The aim of this study was to (1) establish a zymosan-induced model of apical periodontitis in mouse, (2) observe the expression of Dectin-1 and its possible relationship with toll-like receptor (TLR) 2 and (3) observe relationship between Osteopontin (OPN) and inflammatory cytokines. METHODS A total of 138 Naval Medical Research Institute (NMRI) mice were randomly divided into; Experimental Group n = 69 and Zymosan Group n = 69. Periapical periodontitis was developed in right maxillary molar. The animals were sacrificed at 7, 21 and 42 days. Bone blocks containing the mesial root (n = 15 for qRT-PCR, n = 45 for enzyme-linked immune sorbent assay (ELISA)) were collected for mRNA expression and ELISA. While whole maxilla (n = 3 from each time interval) were used for histology and immunohistochemical analysis. One way analysis of variance (ANOVA) and Tuckey's posthoc was used for statistical analysis at p ≤ .05. RESULTS TLR-2, Dectin-1 and TLR4-positive cells was detected at all time intervals in both groups. A strong positive correlation was observed between TLR-2 and Dectin-1 in both lesions (regular r = .680, p = .015, zymosan (r = .861, p < .001)). A significant correlation was found between OPN and tumour necrosis factor-alpha (TNF-α) in zymosan lesion (r = .827, p = .001). CONCLUSIONS Immune cells of inflamed periapical tissue expressed Dectin-1 receptor in response to the microbial challenge from infected root canals and showed positive correlation with TLR-2 and OPN suggesting a possible receptor collaboration mediated by OPN. The expression of OPN and TNF-α showed positive correlation in response to fungal antigen, indicating a possible relationship.
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Affiliation(s)
- Arshad Hasan
- Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Karachi, Pakistan
| | - Talat Roome
- Department of Pathology, Section Molecular Pathology, Dow International Medical College, Karachi, Pakistan
- Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Karachi, Pakistan
| | - Mohsin Wahid
- Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
- Dow Research Institute of Biotechnology and Biomedical Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Shazia Akbar Ansari
- Department of Oral Pathology, Dow Dental College, Dow University of Health Sciences, Karachi, Pakistan
| | - Javeria Ali Khan
- Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Karachi, Pakistan
| | - Amber Kiyani
- Department of Oral Medicine and Diagnosis, Islamic International dental College, Riphah International University, Islamabad, Pakistan
| | - Syeda Neha Ahmed Jilani
- Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Karachi, Pakistan
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Ullah A, Mamun AA, Zaidi MB, Roome T, Hasan A. A calcium peroxide incorporated oxygen releasing chitosan-PVA patch for Diabetic wound healing. Biomed Pharmacother 2023; 165:115156. [PMID: 37536030 DOI: 10.1016/j.biopha.2023.115156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 08/05/2023] Open
Abstract
Impaired wound healing is a major healthcare problem in patients with diabetes often resulting in gangrene, microbial infection and amputation of affected limb. The delay or absence in healing process arises from several abnormalities, among them chronic hypoxia is a major concern due to its associated issues such as lack of collagen deposition, epithelization, fibroplasia, angiogenesis, and resistance to infections at the wound site. To address hypoxia, delivery of oxygen at the wound site through oxygen releasing agents have been proven to be effective therapeutics. Several oxygen releasing nanoparticles such as Sodium Percarbonate (SPC), Calcium Peroxide (CPO), Hydrogen Peroxide, Magnesium Peroxide (MPO) have been investigated in wound healing application. However, the uncontrolled/burst release of these nanotherapeutic agents and its accompanied cytotoxicity pose a barrier in expediting the healing process. In this study, a Chitosan-Polyvinyl alcohol (CS-PVA) based hydrogel containing oxygen releasing nanoparticle, calcium peroxide (CPO) was constructed to provide a slow and sustained delivery of oxygen for at least 5 days. In-vitro cell culture studies with this material using fibroblast and endothelial cell line exhibited improved biocompatibility, cell viability and enhanced proliferation in comparison with the control group. Additionally, cell migration study using scratch assay method showed superior cell migration ability of our proposed materials. Furthermore, In vivo study using diabetic rat model showed accelerated wound closure rate compared to untreated control wounds.
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Affiliation(s)
- Asad Ullah
- Department of Mechanical and Industrial Engineering, Qatar university, Qatar; Biomedical Research Center, Qatar University, Qatar
| | - Abdulla Al Mamun
- Department of Mechanical and Industrial Engineering, Qatar university, Qatar; Biomedical Research Center, Qatar University, Qatar
| | - Midhat Batool Zaidi
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Qatar
| | - Talat Roome
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Qatar; Molecular Pathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Qatar
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar university, Qatar; Biomedical Research Center, Qatar University, Qatar.
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Hasan A, Roome T, Wahid M, Ansari SA, Khan JA, Jilani SNA, Jawed A, Kiyani A. Expression of Toll-like receptor 2, Dectin-1, and Osteopontin in murine model of pulpitis. Clin Oral Investig 2023; 27:1177-1192. [PMID: 36205788 DOI: 10.1007/s00784-022-04732-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/01/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES This in vivo animal study aimed to develop a murine model of pulpitis induced by pulp exposure with or without application of zymosan in Naval Medical Research Institute (NMRI) mice and observe expressions of Toll-like receptor (TLR)-2, TLR-4, Dectin-1, Osteopontin (OPN), tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, and IL-1ß. MATERIAL AND METHODS A total of 168 NMRI mice were divided into two groups, i.e., group A (n = 84) (pulpitis induced by pulp exposure only) and group B (n = 84) (pulpitis induced by pulp exposure and zymosan application). Right maxillary molar pulps were exposed with ¼ round bur, and animals were sacrificed at 0, 6, 9, 12, 24, 48, and 72 h. The exposed teeth were obtained for real-time polymerase chain reaction (qRT-PCR) analysis and histological and immunohistochemistry (IHC) analysis. RESULTS Histological evaluation revealed a time-dependent steady increase in inflammation. Similar time-dependent increase in the expression of inflammatory cytokines was noted. Group A exhibited an increase in TLR-4, Dectin-1, and OPN at 6 h, while TLR-2 was expressed at 24 h. Group B expressed TLR-2, Dectin-1, and OPN at 9, 48, and 72 h, respectively (p ≤ 0.05). Expression of OPN and TNF-α exhibited a similar pattern in both groups. IHC also detected expression of TLR-2, Dectin-1, TLR4, and CD68 in some cells at 6 and 9 h. CONCLUSIONS NMRI mice provided for a stable pulp inflammation model. Zymosan may be used to develop pulp inflammation model and study inflammatory response towards fungal antigens. Dental pulp expressed Dectin-1 receptor. OPN and TNF-α exhibited a similar expression pattern. CLINICAL RELEVANCE Innate immunity of dental pulp is capable of detecting fungal pathogens.
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Affiliation(s)
- Arshad Hasan
- Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Baba-e-Urdu Road, Karachi, 74200, Pakistan.
| | - Talat Roome
- Department of Pathology, Section Molecular Pathology, Dow International Medical College, Ojha Campus, Gulzar-e-Hijri Karachi, Pakistan.,Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Ojha Campus, Gulzar-e-Hijri Karachi, Pakistan
| | - Mohsin Wahid
- Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Ojha Campus, Gulzar-e-Hijri Karachi, Pakistan.,Dow Research Institute of Biotechnology and Biomedical Sciences, Dow University of Health Sciences, Ojha Campus, Gulzar-e-Hijri Karachi, Pakistan
| | - Shazia Akbar Ansari
- Department of Oral Pathology, Dow Dental College, Dow University of Health Sciences, Baba-e-Urdu Road, Karachi, 74200, Pakistan
| | - Javeria Ali Khan
- Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Baba-e-Urdu Road, Karachi, 74200, Pakistan
| | - Syeda Neha Ahmed Jilani
- Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Ojha Campus, Gulzar-e-Hijri Karachi, Pakistan
| | - Abira Jawed
- Department of Oral Pathology, Dow Dental College, Dow University of Health Sciences, Baba-e-Urdu Road, Karachi, 74200, Pakistan
| | - Amber Kiyani
- Department of Oral Diagnosis and Medicine, Islamic International Dental College, Riphah International University, 7th Avenue G-7/4, Islamabad, Pakistan
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5
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Hasan A, Roome T, Wahid M, Ansari SA, Akhtar H, Jilani SNA, Kiyani A. Gene expression analysis of toll like receptor 2 and 4, Dectin-1, Osteopontin and inflammatory cytokines in human dental pulp ex-vivo. BMC Oral Health 2022; 22:563. [PMID: 36463168 PMCID: PMC9719632 DOI: 10.1186/s12903-022-02621-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/25/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Toll like receptors (TLR) 2 and 4 present on innate immune cells of the dental pulp detect cariogenic bacteria. Along with bacteria, C. albicans may also be present in dental caries. The presence of C. albicans can be detected by Dectin-1 a C type Lectin receptor. Expression of Dectin-1 in human pulpits has not been reported. Similarly, cytokines are released as a consequence of dental pulp inflammation caused by cariogenic bacteria. The T helper (Th) 1 inflammatory response leads to exacerbation of inflammation and its relationship with Osteopontin (OPN) is not known in pulp inflammation. OBJECTIVE The aim of this study was to observe the expression of Dectin-1, TLR-2, OPN and pro-inflammatory cytokines in irreversibly inflamed human dental pulp and to observe relationship between Dectin-1/TLR-2 and OPN/Pro-inflammatory cytokines in the presence of appropriate controls. METHODS A total of 28 subjects diagnosed with irreversible pulpitis were included in this ex-vivo study. Fifteen samples were subjected to standard hematoxylin and Eosin (H&E) and immunohistochemistry staining. Whereas, gene expression analysis was performed on 13 samples to observe mRNA expression of pro-inflammatory cytokines; tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1 beta (ß), IL-6 Dectin-1, OPN, TLR-2 and TLR-4. SPSS version 21 was used for statistical analysis. One way analysis of variance (ANOVA), Pearson correlation and Chi-square test were used at p ≤ 0.05. RESULTS Gene expressions of Dectin-1, TLR-2 and TLR-4 were observed in all samples. Dectin-1 and TLR-2 expressions were significantly correlated (r = 0.5587, p = 0.0002). Similarly, OPN and TNF-α expression showed a significant correlation (r = 0.5860, p = 0001). The agreement between histologic and clinical diagnosis was 69.2% in the cases of irreversible pulpitis. CONCLUSION Dectin-1 was expressed by inflamed human dental pulp. Dectin-1 and TLR-2 expression pattern was suggestive of a collaborative receptor response in inflamed pulp environment. OPN and TNF-α expressions showed a positive correlation indicating a possible relationship.
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Affiliation(s)
- Arshad Hasan
- grid.412080.f0000 0000 9363 9292Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Baba-E-Urdu Road, Karachi, 74200 Pakistan
| | - Talat Roome
- Department of Pathology, Section Molecular Pathology, Dow International Medical College, Ojha Campus, Gulzar-E-Hijri, Karachi, Pakistan ,grid.412080.f0000 0000 9363 9292Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Ojha Campus, Gulzar-E-Hijri, Karachi, Pakistan
| | - Mohsin Wahid
- grid.412080.f0000 0000 9363 9292Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Ojha Campus, Gulzar-E-Hijri, Karachi, Pakistan ,grid.412080.f0000 0000 9363 9292Dow Research Institute of Biotechnology and Biomedical Sciences, Dow University of Health Sciences, Ojha Campus, Gulzar-E-Hijri, Karachi, Pakistan
| | - Shazia Akbar Ansari
- grid.412080.f0000 0000 9363 9292Department of Oral Pathology, Dow Dental College, Dow University of Health Sciences, Baba-E-Urdu Road, Karachi, 74200 Pakistan
| | - Hira Akhtar
- grid.412080.f0000 0000 9363 9292Department of Operative Dentistry, Dow Dental College, Dow University of Health Sciences, Baba-E-Urdu Road, Karachi, 74200 Pakistan
| | - Syeda Neha Ahmed Jilani
- grid.412080.f0000 0000 9363 9292Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Ojha Campus, Gulzar-E-Hijri, Karachi, Pakistan
| | - Amber Kiyani
- grid.414839.30000 0001 1703 6673Department of Oral Medicine and Diagnosis, Islamic International Dental College, Riphah International University, 7th Avenue G-7/4, Islamabad, Pakistan
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6
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Aslam Z, Roome T, Razzak A, Aslam SM, Zaidi MB, Kanwal T, Sikandar B, Bertino MF, Rehman K, Shah MR. Investigation of wound healing potential of photo-active curcumin-ZnO-nanoconjugates in excisional wound model. Photodiagnosis Photodyn Ther 2022; 39:102956. [PMID: 35714899 DOI: 10.1016/j.pdpdt.2022.102956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/23/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
Wound healing, being a dynamic process consisting of hemostasis, inflammation, proliferation, and remodeling, involves the complicated interplay of various growth mediators and the cells associated repair system. Current wound healing therapies usually fail to completely regain skin integrity and functionality. Traditionally, curcumin is considered a potent natural wound healing agent as it possesses antibacterial, antioxidant, and anti-inflammatory properties. It is also known that zinc oxide (ZnO) nanoparticles (NPs) have photocatalytic properties, including the generation of reactive oxygen species. ZnO nanoaprticles are also Food and Drug Administration (FDA) approved as safe substances. While ZnO oxide requires illumination with ultraviolet light to become photocatalytically active, dye-sensitized ZnO can be activated by illumination with visible light. In the present study, we explored the wound healing potential of ZnO nanoparticles sensitized with curcumin (Cu+ZnO Nps) and illuminated with visible (blue) light generated by an array of high power LEDs. We studied the antibacterial effect of our conjugates by percentage reduction in bacterial growth and biofilm formation. The wound healing potential was analyzed by percentage wound contraction, biochemical parameters, and histopathological analysis of the wounded site. Additionally, angiogenesis and wound associated cytokines was evaluated by immunohistochemistry of CD31 and gene expression analysis of IL-1β, TNF-α, and MMP-9 after 16 days of post-wound treatment, respectively. Our study suggests that the therapeutic effect of Cu+ZnO NPs with LED illumination increases its wound healing potential by producing an antibacterial and anti-inflammatory effect. Moreover, the treatment strategy of using a nano formulation in combination with LED illumination further increases its efficacy. It was concluded that the anti-inflammatory and bactericidal effects of the LED illuminated Cu+ZnO Np showed accelerated wound healing with increased wound contraction, collagen deposition, angiogenesis, and re-epithelialization.
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Affiliation(s)
- Zara Aslam
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Talat Roome
- Molecular Pathology Section, Dow Diagnostic Reference and Research Laboratory, Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan; Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Anam Razzak
- Molecular Pathology Section, Dow Diagnostic Reference and Research Laboratory, Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan; Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Shazmeen Mohammad Aslam
- Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Midhat Batool Zaidi
- Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Tasmina Kanwal
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Bushra Sikandar
- Histopathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | | | - Khadija Rehman
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Muhammad Raza Shah
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
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Majeed MM, Ahmed I, Roome T, Alali Y, Al-Aali KA, Ahmed N, Saleem Z, Alhumaidan AA, Farooqui WA, Ahmed S, Vohra F, Abduljabbar T. Association of the Unstimulated Whole Salivary Cytokine IL-1β Levels with Initial, Moderate and Severe Periodontitis. A Case Control Study. Int J Environ Res Public Health 2022; 19:ijerph19052889. [PMID: 35270581 PMCID: PMC8910701 DOI: 10.3390/ijerph19052889] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/10/2022] [Accepted: 02/18/2022] [Indexed: 01/03/2023]
Abstract
Periodontitis (P) is a highly prevalent inflammatory disease of the oral cavity. The objective of the study was to evaluate the stages of pro-inflammatory cytokine IL-1β in initial, moderate and severe periodontitis. One hundred and twenty two patients were included in the study. Periodontitis subjects had at least 20 natural teeth and ≥8 sites with pocket depths of >4 mm and clinical attachment loss (CAL). A questionnaire was used with respect to the socio demographic parameters which included age, gender, ethnicity, education, marital, residence and occupation. To categorize the severity of the disease, teeth were assessed for, Plaque index (PI), Bleeding on probing (BOP), CAL, missing tooth, tooth mobility and bone loss. Unstimulated whole saliva (UWS) was collected and Interleukin-1β (IL-1β) cytokine levels were analyzed using enzyme linked immunosorbent assay with microplate reader at 450 nm. Clinical parameters and salivary cytokine concentrations were assessed using one-way analysis of variance, whereas a correlation of cases with gender and severity of periodontitis was evaluated using chi-square test. Fifty-nine patients were healthy controls and 63 were periodontitis patients Thirty two percent (n = 20) had initial periodontitis, 40% (n = 25) suffered from moderate and 29% (n = 18) had severe periodontitis. Periodontitis subgroups were significantly different with regards to age and gender (p < 0.001). The mean PPD and CAL among the periodontitis patients (PPD, 3.52 ± 1.25 mm; CAL, 4.04 ± 1.64 mm) were significantly compromised (p < 0.05) compared to healthy controls (PPD, 1.52 ± 0.73 mm; CAL, 0.08 ± 0.28 mm). Increased levels of IL-1β were associated with high CAL and PPD findings. UWS IL-1β levels were higher in periodontitis patients compared to healthy individuals. In addition, cases of severe periodontitis showed significantly higher UWS IL-1β levels compared to initial and moderate periodontitis patients. Comparative levels of salivary IL-1β can be potentially used as a diagnostic tool for periodontitis identification and disease progression along with clinical parameters.
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Affiliation(s)
- Muhammad M. Majeed
- Department of Oral Biology, Altamash Institute of Dental Medicine, Karachi 75500, Pakistan;
| | - Imtiaz Ahmed
- Department of Orthodontics, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Talat Roome
- Section of Molecular Pathology, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Yasser Alali
- Department of Maxillofacial Surgery, College of Dentistry, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Khulud A. Al-Aali
- Department of Clinical Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia;
| | - Naseer Ahmed
- Department of Prosthodontics, Altamash Institute of Dental Medicine, Karachi 75500, Pakistan;
| | - Zohra Saleem
- Deprtment of Oral and Maxillofacial Surgery, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Abdulkareem A. Alhumaidan
- Preventive Dental Sciences Department, College of Dentistry, Imam Abdulrahman bin Faisal University, Dammam 34212, Saudi Arabia;
| | - Waqas A. Farooqui
- School of Public Health, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Saeeda Ahmed
- Department of Public Health, Baqai Mecial University, Karachi 75340, Pakistan;
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 12372, Saudi Arabia;
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 12372, Saudi Arabia;
- Correspondence: ; Tel.: +966-1434555
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Abstract
Objectives
Periodontitis is a pathological condition of the oral cavity, originating from multiple factors, including microbial, environmental and genetic factors. The vulnerability to several pathologies has been studied with the relationship to genetic polymorphisms, and one of the most prominent is the single nucleotide polymorphisms throughout the genome. The study aimed to find out the association of single nucleotide polymorphism (SNP) of interleukin-1β +3954 gene with chronic periodontitis (CP) in Pakistan
Materials and Methods
This case–control study was conducted at Dow University of Health Sciences. DNA was extracted from the blood and amplified by using conventional polymerase chain reaction of respective genes followed by sequencing. Mann–Whitney test accessed the difference of clinical parameters between cases and controls, and Fisher’s exact test was applied to access the association of alleles between subjects. Data entered and analyzed using SPSS 21.
Results
Significant differences were observed in clinical parameters in cases and controls (
p
< 0.001). In the IL-1β +3954 gene, T alleles were significantly higher in cases as compared with controls (
p
< 0.001). Genotype CC was significantly dominant in the controls and genotype CT and TT in patients (Chi-square = 19.83,
p
< 0.001).
Conclusion
Within the study’s limits, IL-1β +3954 gene polymorphism is associated with periodontitis and is expected to be among the several causes of respective pathology in Pakistan’s population.
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Affiliation(s)
| | - Imtiaz Ahmed
- Department of Orthodontics, Dow University of Health Sciences, Karachi, Pakistan
| | - Talat Roome
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi, Pakistan
| | - Tehseen Fatima
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
| | - Rafat Amin
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Pakistan
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Roome T, Qasim M, Aziz S, Farooq AD, Razzaq A, Ali SF. Assessment of acute, sub-acute, chronic and genotoxicity of polyherbal formulation DCD-684 in mice. Pak J Pharm Sci 2021; 34:1485-1498. [PMID: 34799324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Digas colic drops (DCD-684) a polyherbal formulation containing Carum carvi, Foeniculum vulgare, Mentha arvensis, Mentha piperita and Zingiber officinale is widely used in Pakistan against gastrointestinal ailments including infantile colic. The DCD-684 (0.03-3ml/kg.bw) administered orally in acute (7-days) and sub-acute toxicity (14-days) tests, displayed neither mortality nor toxicological changes in physical, behavioral, biochemical and histopathological parameters. In chronic study (90-days), DCD-684 (0.3-12ml/kg.bw) also revealed no changes. However, at 18 and 36 ml/kg.bw, liver demonstrated mild inflammation correlating with raised aspartate transaminase (AST), alkaline phosphatase (ALP) and alpha fetoprotein (AFP) levels. Increased levels of urea and inflamed renal parenchyma indicated mild nephro-toxicity with high alanine aminotransferase (ALT) at 36ml/kg.bw. The LD50 of DCD-684 in mice was 27.5 ml/kg.bw. In hepatocytes at 36ml/kg.bw, elevated mRNA expression of pro-inflammatory chemokines and cytokines were evident. DCD-684 neither damaged DNA nor induced cytotoxicity in micronucleus assay. In conclusion, polyherbal DCD-684 caused neither hepatic, renal, genotoxicity nor any undesirable effect in mice. Higher doses administered for 90 days showed mild toxic effects with no sign of necrosis, fibrosis or genotoxicity. Thus, in mice DCD-684 demonstrated a wide margin of safety to be used for the relief of infantile colic.
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Affiliation(s)
- Talat Roome
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Maha Qasim
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan/Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan
| | - Sabahat Aziz
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan/Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan
| | - Ahsana Dar Farooq
- Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan/Hamdard Al-Majeed College of Eastern Medicine, Hamdard University, Madinat al-Hikmah, Karachi, Pakistan
| | - Anam Razzaq
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Syed Farooq Ali
- Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan
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Roome T, Qasim M, Farooq AD, Ilyas Q, Aziz S, Ali SF. Antispasmodic activity and mechanism of action of polyherbal formulation DCD-684 on rabbit jejunum. Pak J Pharm Sci 2021; 34:711-722. [PMID: 34275806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Digas colic drops (DCD-684) is a polyherbal formulation containing decoctions of five medicinal plants namely Carum carvi L., Foeniculum vulgare Mill, Mentha arvensis L., Mentha piperita L. and Zingiber officinale Roscoe. These plants have been extensively used in traditional medicine for the treatment of various gastrointestinal diseases including abdominal colic. This study was conducted to determine the spasmolytic effect of DCD-684 (100% v/v) and its individual plant components on isolated rabbit jejunum (in vitro) and their possible mechanism of action. The effects were evaluated on spontaneous and pre-contracted tissues using KCl (80mM) and other contractile agonists including acetylcholine (0.3µM), carbamylcholine (0.3µM), serotonin (10 µM) and histamine (100µM) in the presence and absence of DCD-684. The various concentrations of DCD-684 (0.1-3% v/v) demonstrated spasmolytic effects on both spontaneous (IC50=0.75%) and KCl-induced contractions (IC50=1.6%), respectively. It also inhibited the contractions induced by acetylcholine (IC50=0.45%), carbamylcholine (IC50=0.95%), serotonin (IC50=0.95%) and histamine (IC50=0.87%). The DCD-684 exhibited synergistic effect due to its five plant components suggesting that spasmolytic cascade is probably governed by muscarinic and/or nicotinic receptors, serotonergic histaminergic, as well as calcium channel blocking mechanisms. Thereby, providing the pharmacological basis of its therapeutic use in the gastrointestinal motility disorders and related inflammatory ailments.
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Affiliation(s)
- Talat Roome
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Maha Qasim
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan/ Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan
| | - Ahsana Dar Farooq
- Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan/ Hamdard Al-Majeed College of Eastern Medicine, Hamdard University, Madinat al-Hikmah, Mohammed Said Road, Karachi, Pakistan
| | - Qibtiya Ilyas
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Sabahat Aziz
- Section of Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan/
| | - Syed Farooq Ali
- Medics Laboratories (Pvt.) Limited, DP 32, Sector 12C, North Karachi Industrial Area Karachi, Pakistan
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Kanwal T, Saifullah S, Rehman JU, Kawish M, Razzak A, Maharjan R, Imran M, Ali I, Roome T, Simjee SU, Shah MR. Design of absorption enhancer containing self-nanoemulsifying drug delivery system (SNEDDS) for curcumin improved anti-cancer activity and oral bioavailability. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114774] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kumari S, Ali A, Roome T, Razzak A, Iqbal A, Jabbar Siddiqui A, Muhammad Zahid Azam S, Shaikh H, El-Seedi HR, Musharraf SG. Metabolomics approach to understand the hepatitis C virus induced hepatocellular carcinoma using LC-ESI-MS/MS. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Rozi S, Zahid N, Roome T, Lakhdir MPA, Sawani S, Razzak A, Butt ZA. Effectiveness of a School Based Smokeless Tobacco Intervention: A Cluster Randomized Trial. J Community Health 2020; 44:1098-1110. [PMID: 31267293 DOI: 10.1007/s10900-019-00689-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To assess the effectiveness of intervention in improving knowledge, attitude and perception regarding smokeless tobacco (SLT) use and its harmful effects and intention to quit SLT among school going adolescents. A school-based cluster randomized control trial was carried out in 18 secondary schools targeting male and female students from grades 6 to 10 in Karachi. Primary outcome was knowledge about hazards of smokeless tobacco (SLT) and secondary outcomes were attitude and Perception about hazards of SLT, and intention to quit SLT. We enrolled 738 participants in intervention group and 589 in the control group. Mean score of knowledge significantly improved in intervention as compared to control group (P value < 0.01). Intention to quit was found to be proportionately higher (33%) in the intervention group as compared to control group. Generalized estimating equations were used to assess the association of factors with knowledge regarding harmful effects of SLT use. Significant predictors of increase in knowledge score were found in children: who had seen any anti SLT messages on social media in the past 30 days, who were getting information regarding harmful effects of SLT use in school or textbooks and who had friends using SLT. A school-based intervention was effective in increasing knowledge regarding the harmful effects of SLT use and intention to quit SLT use among school adolescents. Introduction of such educational programmes on a regular basis in schools or as part of school curriculum can have an impact on reducing prevalence of SLT use.Trial Registration NCT03418506. https://register.clinicaltrials.gov/NCT03418506 .
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Affiliation(s)
- Shafquat Rozi
- Department of Community Health Sciences, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan.
| | - Nida Zahid
- Department of Surgery, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan
| | - Talat Roome
- Department of Pathology, Dow University of Health Sciences, University Road, Karachi, 75270, Pakistan
| | - Maryam Pyar Ali Lakhdir
- Department of Community Health Sciences, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan
| | - Sobiya Sawani
- Department of Community Health Sciences, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan
| | - Anam Razzak
- Department of Pathology, Dow University of Health Sciences, University Road, Karachi, 75270, Pakistan
| | - Zahid Ahmad Butt
- School of Population and Public Health, University of British Columbia, Vancouver, V6T 1Z4, Canada
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Roome T, Rashid Y, Aurongzeb M, Razzak A. Structural investigation of human dectin-1 receptor; A novel gateway in drug discovery. Pak J Pharm Sci 2019; 32:1509-1518. [PMID: 31608869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stimulation of C-type lectin domain of human dectin-1 receptor by fungal β-glucans causes conformational changes in its cytoplasmic domain which initiates various cellular responses mediated by downstream signaling components. We aimed to build the three-dimensional structures of the cytoplasmic domain as well as C-type lectin domain of human Dectin-1along with their potential ligands through homology modeling.The overall three-dimensional fold of cytoplasmic domain was found to consist of mixed β-sheet whereas,in case of C-type lectin domain antiparallel β-sheets flanked by α-helices were observed. Protein-protein docking strategy was utilized to monitorkey interactions between cytoplasmic domainof dectin-1 receptor and PKCδ, as a prime regulator of Dectin-1 signaling. The interface was observed to have both hydrophilic and hydrophobic amino acid residues maintaining crucial contacts between the two proteins. The given three dimensional structural information can be implicated in structure-based drug designing to discover potential immunomodulators that can interfere with the immune responses and phagocytosis during inflammatory and infectious conditions.
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Affiliation(s)
- Talat Roome
- Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow International Medical College, Dow University of Health Sciences (Ojha Campus), Karachi, Pakistan
| | - Yasmeen Rashid
- Departmentof Biochemistry, University of Karachi, Karachi, Pakistan
| | - Muhammad Aurongzeb
- Jamil-ur-Rehman Center for Genome Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Anam Razzak
- Molecular Pathology, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow International Medical College, Dow University of Health Sciences (Ojha Campus), Karachi, Pakistan
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Imran M, Hameed A, S, Hafizur RM, Ali I, Roome T, Shah MR. Fabrication of Xanthan stabilized green gold nanoparticles based tolbutamide delivery system for enhanced insulin secretion in mice pancreatic islets. Journal of Macromolecular Science, Part A 2018. [DOI: 10.1080/10601325.2018.1510290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Muhammad Imran
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Hameed
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Shafiullah
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa, Pakistan
| | - Rahman M. Hafizur
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Imdad Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Talat Roome
- Molecular Pathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Department of Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
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Rao K, Aziz S, Roome T, Razzak A, Sikandar B, Jamali KS, Imran M, Jabri T, Shah MR. Gum acacia stabilized silver nanoparticles based nano-cargo for enhanced anti-arthritic potentials of hesperidin in adjuvant induced arthritic rats. Artificial Cells, Nanomedicine, and Biotechnology 2018; 46:597-607. [DOI: 10.1080/21691401.2018.1431653] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Komal Rao
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Sabahat Aziz
- Molecular Pathology Section, Department of Pathology, Dow International Medical College, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi, Pakistan
- Department of Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Talat Roome
- Molecular Pathology Section, Department of Pathology, Dow International Medical College, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi, Pakistan
- Department of Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Anam Razzak
- Molecular Pathology Section, Department of Pathology, Dow International Medical College, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi, Pakistan
- Department of Laboratory Animal Sciences, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Bushra Sikandar
- Histopathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Khawar Saeed Jamali
- Department of Surgery, Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Muhammad Imran
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Tooba Jabri
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Muhammad Raza Shah
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
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Rao K, Roome T, Aziz S, Razzak A, Abbas G, Imran M, Jabri T, Gul J, Hussain M, Sikandar B, Sharafat S, Shah MR. Bergenin loaded gum xanthan stabilized silver nanoparticles suppress synovial inflammation through modulation of the immune response and oxidative stress in adjuvant induced arthritic rats. J Mater Chem B 2018; 6:4486-4501. [DOI: 10.1039/c8tb00672e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Bergenin (BG) is a naturally occurring C-glycoside with demonstrated anti-arthritic potential.
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Khan SA, Haider A, Mahmood W, Roome T, Abbas G. Gamma-linolenic acid ameliorated glycation-induced memory impairment in rats. Pharm Biol 2017; 55:1817-1823. [PMID: 28545346 PMCID: PMC7012036 DOI: 10.1080/13880209.2017.1331363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 03/15/2017] [Accepted: 05/12/2017] [Indexed: 06/07/2023]
Abstract
CONTEXT γ-Linolenic acid (GLA) is an important constituent of anti-ageing supplements. OBJECTIVE The current study investigates the anti-ageing effect of GLA in Sprague-Dawley rats. MATERIALS AND METHODS GLA (0.1, 0.2, 0.4, 2, 10, 20 and 24 μM) was initially evaluated for its effect on the formation of advanced glycation end products (AGEs) in vitro. For in vivo assessment (1, 5 or 15 mg/kg), the rat model of accelerated ageing was developed using d-fructose (1000 mg/kg (i.p.) plus 10% in drinking water for 40 days). Morris water maze was used to evaluate impairment in learning and memory. The blood of treated animals was used to measure glycosylated haemoglobin (HbA1c) levels. The interaction of GLA with active residues of receptor of AGE (RAGE) was analyzed using AutoDock Vina. RESULTS Our data showed that GLA inhibited the production of AGEs (IC50 = 1.12 ± 0.05 μM). However, this effect was more significant at lower tested doses. A similar pattern was also observed in in vivo experiments, where the effect of fructose was reversed by GLA only at lowest tested dose of 1 mg/kg. The HbA1c levels also revealed significant reduction at lower doses (1 and 5 mg/kg). The in silico data exhibited promising interaction of GLA with active residues (Try72, Arg77 and Gln67) of RAGE. CONCLUSION The GLA, at lower doses, possesses therapeutic potential against glycation-induced memory decline.
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Affiliation(s)
- Shahab Ali Khan
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, K.P.K., Pakistan
| | - Ali Haider
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, K.P.K., Pakistan
| | - Wajahat Mahmood
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, K.P.K., Pakistan
| | - Talat Roome
- Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Ghulam Abbas
- Pharmacology Section, H.E.J. Research Institute of Chemistry, International Center for Chemical & Biological Sciences, University of Karachi, Karachi, Pakistan
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Rozi S, Roome T, Zahid N, Ali M. Improvement in knowledge and perception about hazards of smokeless tobacco: Cluster randomized trial. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Rozi
- Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
| | - T Roome
- Dow University of Health Sciences, Karachi, Pakistan
| | - N Zahid
- Department of Surgery, Aga Khan University, Karachi, Pakistan
| | - M Ali
- Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
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Zaman N, Ahmad H, Abid MA, Nisar-ur-Rahman, Roome T, Abbas G. Acetaminophen (Paracetamol) Facilitated Extinction Lear ning in Contextual Fear Conditioned Rats. LETT DRUG DES DISCOV 2017. [DOI: 10.2174/1570180814666170203162557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Neelam Zaman
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad-22060, K.P.K., Pakistan
| | - Hammad Ahmad
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad-22060, K.P.K., Pakistan
| | - Mobasher Ali Abid
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad-22060, K.P.K., Pakistan
| | - Nisar-ur-Rahman
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad-22060, K.P.K., Pakistan
| | - Talat Roome
- Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - Ghulam Abbas
- Pharmacology Section, H.E.J. Research Institute of Chemistry, International Center for Chemical & Biological Sciences, University of Karachi, Karachi-75270, Pakistan
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Kundu S, Roome T, Bhattacharjee A, Carnevale KA, Yakubenko VP, Zhang R, Hwang SH, Hammock BD, Cathcart MK. Metabolic products of soluble epoxide hydrolase are essential for monocyte chemotaxis to MCP-1 in vitro and in vivo. J Lipid Res 2012; 54:436-47. [PMID: 23160182 DOI: 10.1194/jlr.m031914] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Monocyte chemoattractant protein-1 (MCP-1)-induced monocyte chemotaxis is a major event in inflammatory disease. Our prior studies have demonstrated that MCP-1-dependent chemotaxis requires release of arachidonic acid (AA) by activated cytosolic phospholipase A(2) (cPLA(2)). Here we investigated the involvement of AA metabolites in chemotaxis. Neither cyclooxygenase nor lipoxygenase pathways were required, whereas pharmacologic inhibitors of both the cytochrome-P450 (CYP) and the soluble epoxide hydrolase (sEH) pathways blocked monocyte chemotaxis to MCP-1. To verify specificity, we demonstrated that the CYP and sEH products epoxyeiscosatrienoic acids (EETs) and dihydroxyeicosatrienoic acids (DHETs), respectively, restored chemotaxis in the presence of the inhibitors, indicating that sEH-derived products are essential for MCP-1-driven chemotaxis. Importantly, DHETs also rescued chemotaxis in cPLA(2)-deficient monocytes and monocytes with blocked Erk1/2 activity, because Erk controls cPLA(2) activation. The in vitro findings regarding the involvement of CYP/sEH pathways were further validated in vivo using two complementary approaches measuring MCP-1-dependent chemotaxis in mice. These observations reveal the importance of sEH in MCP-1-regulated monocyte chemotaxis and may explain the observed therapeutic value of sEH inhibitors in treatment of inflammatory diseases, cardiovascular diseases, pain, and even carcinogenesis. Their effectiveness, often attributed to increasing EET levels, is probably influenced by the impairment of DHET formation and inhibition of chemotaxis.
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Affiliation(s)
- Suman Kundu
- Department of Cell Biology, and Research Core Services, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
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Elsori DH, Yakubenko VP, Roome T, Thiagarajan PS, Bhattacharjee A, Yadav SP, Cathcart MK. Protein kinase Cδ is a critical component of Dectin-1 signaling in primary human monocytes. J Leukoc Biol 2011; 90:599-611. [PMID: 21653233 DOI: 10.1189/jlb.0610376] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Zymosan, a mimic of fungal pathogens, and its opsonized form (ZOP) are potent stimulators of monocyte NADPH oxidase, resulting in the production of O(2)(.-), which is critical for host defense against fungal and bacterial pathogens and efficient immune responses; however, uncontrolled O(2)(.-) production may contribute to chronic inflammation and tissue injury. Our laboratory has focused on characterizing the signal transduction pathways that regulate NADPH oxidase activity in primary human monocytes. In this study, we examined the involvement of various pattern recognition receptors and found that Dectin-1 is the primary receptor for zymosan stimulation of O(2)(.-) via NADPH oxidase in human monocytes, whereas Dectin-1 and CR3 mediate the activation by ZOP. Further studies identified Syk and Src as important signaling components downstream of Dectin-1 and additionally identified PKCδ as a novel downstream signaling component for zymosan-induced O(2)(.-) as well as phagocytosis. Our results show that Syk and Src association with Dectin-1 is dependent on PKCδ activity and expression and demonstrate direct binding between Dectin-1 and PKCδ. Finally, our data show that PKCδ and Syk but not Src are required for Dectin-1-mediated phagocytosis. Taken together, our data identify Dectin-1 as the major PRR for zymosan in primary human monocytes and identify PKCδ as a novel downstream signaling kinase for Dectin-1-mediated regulation of monocyte NADPH oxidase and zymosan phagocytosis.
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Roome T, Dar A, Naqvi S, Choudhary MI. Evaluation of antinociceptive effect of Aegiceras corniculatum stems extracts and its possible mechanism of action in rodents. J Ethnopharmacol 2011; 135:351-358. [PMID: 21419211 DOI: 10.1016/j.jep.2011.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 02/19/2011] [Accepted: 03/09/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aegiceras corniculatum (Linn.) Blanco is used in various traditional medicinal system(s) for the treatment of rheumatism, painful arthritis and inflammation. Therefore, the pharmacological studies of its antinociceptive effect was undertaken to validate its traditional use. MATERIALS AND METHODS n-Hexane, ethyl acetate and methanol extract(s) derived from Aegiceras corniculatum (stems) were studied using various nociceptive model(s) induced chemically or thermally in mice including acetic acid-induced writhing, formalin-induced paw licking and hot plate test. RESULTS In acetic acid-induced writhing test, plant extracts dose dependently decreased the writhing numbers. The methanolic extract (1-10mg/kg, i.p. in mice) of the plant was more potent than acetaminophen and acetyl salicylic acid, with an IC(50) of 4.2 ± 0.99 mg/kg. Moreover, the time of nociceptive behaviors induced by intraplantar formalin injection was also suppressed during 1st and 2nd phases in the presence of ethyl acetate extract whereas, n-hexane and methanolic extracts inhibited the paw licking in mice during the 1st (IC(50) 12 ± 0.76 mg/kg) and 2nd phases (IC(50) 3.8 ± 0.55 mg/kg). Naloxone, β-funaltrexamine, and naltrindole antagonized the n-hexane extract-induced antinociception in the first phase of formalin test indicating its non-selective analgesic response via opioid receptor(s). However, ethyl acetate extract was devoid of any opioid action. Additionally, these extracts significantly inhibited the pain stimulation in hot plate test. Withdrawal syndrome of morphine dependence was also diminished in the presence of plant extracts via potentiation of GABAergic system. CONCLUSION These results suggested that Aegiceras corniculatum extract(s) possesses analgesic properties and acts on the central nervous system, thereby suppressing the inflammatory pain justifying its folklore use.
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Affiliation(s)
- Talat Roome
- Pharmacology Section, H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Roome T, Dar A, Naqvi S, Ali S, Choudhary MI. Aegiceras corniculatum extract suppresses initial and late phases of inflammation in rat paw and attenuates the production of eicosanoids in rat neutrophils and human platelets. J Ethnopharmacol 2008; 120:248-254. [PMID: 18809484 DOI: 10.1016/j.jep.2008.08.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2007] [Revised: 07/05/2008] [Accepted: 08/23/2008] [Indexed: 05/26/2023]
Abstract
AIM OF THE STUDY The present study is designed to explore the anti-inflammatory potential of Aegiceras corniculatum Linn. Blanco stems extracts and their mechanism of action against various pro-inflammatory mediators and to validate its traditional use against inflammatory diseases. MATERIALS AND METHODS Rat paw edema and peritonitis models were employed for in vivo studies. For in vitro studies human platelets and rat neutrophils were stimulated with Ca(2+)-ionophore A23187 leading to the production of various pro-inflammatory metabolites, i.e., 12-HTT, 12-HETE and LTB(4) and 5-HETE which were quantified by HPLC. RESULTS The highly polar methanol extract (100mg/kg) caused approximately 90% reduction in the carrageenan- and prostaglandin E2-induced paw edema in rats. It also caused the inhibition of cycloxygenase-1 metabolite, 12-HHT (IC(50) 41.1+/-1.5microg/ml) with a concomitant rise in 12-lipoxygenase metabolite, 12-HETE in A23187 stimulated human platelets. Conversely, the non-polar hexane extract attenuated (IC(50) 0.36+/-0.12microg/ml) 12-HETE formation with a parallel rise in 12-HHT, thereby displaying a selectivity towards 12-lipoxygenase. Non-polar hexane extract also antagonized the production of 5-lipoxygenase metabolites, i.e., leukotriene B(4) and 5-HETE in the rat neutrophils. Furthermore, ethyl acetate extract inhibited both COX and 5-LOX with a marked decline in the production of 12-HHT (IC(50) 0.08+/-0.002microg/ml) and LTB(4) (IC(50) 0.86+/-0.03microg/ml), respectively. The anti-inflammatory effect of hexane and ethyl acetate extracts was also reflected by the diminution of carrageenan-induced cell infiltration in rat peritoneum. Additionally, plant extracts caused approximately 60% suppression in dextran-induced paw edema implying that they also ameliorate histamine and serotonin release. CONCLUSION Hexane, ethyl acetate and methanol extracts derived from Aegiceras corniculatum possess significant anti-inflammatory activity via multiple mechanisms and validate their traditional use against inflammation-related diseases.
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Affiliation(s)
- Talat Roome
- International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
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Roome T, Dar A, Ali S, Naqvi S, Choudhary MI. A study on antioxidant, free radical scavenging, anti-inflammatory and hepatoprotective actions of Aegiceras corniculatum (stem) extracts. J Ethnopharmacol 2008; 118:514-521. [PMID: 18602778 DOI: 10.1016/j.jep.2008.05.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 05/06/2008] [Accepted: 05/21/2008] [Indexed: 05/26/2023]
Abstract
AIM OF THE STUDY The present study was conducted to evaluate the antioxidant, anti-inflammatory and hepatoprotective potential of Aegiceras corniculatum Linn. Blanco (Aegicerataceae). METHODS AND RESULTS The n-hexane, ethyl acetate and methanol extracts, derived from Aegiceras corniculatum stems, scavenged superoxide anions (O2*) and hydroxyl radicals (*OH) in nitro blue tetrazolium reduction and deoxyribose degradation assays, respectively. All the extracts inhibited the process of lipid peroxidation at its initiation step. Additionally, in rat liver microsomes n-hexane and ethyl acetate extracts also caused termination of radical chain reaction supporting their scavenging action towards lipid peroxy radicals (LOO*). Moreover, increased production of O2* in human neutrophils, stimulated by phorbol-12-myristate-13-acetate (PMA) and/or opsonized zymosan were also suppressed (IC50 approximately 3-20 microg/mL). Thereby, revealing the ability of plant extracts to antagonize the oxidative stress via interference with NADPH oxidase metabolic pathway. These in vitro results coincide with the reduction in the glucose oxidase-induced paw edema in mice in the presence of ethyl acetate and methanol extracts (10, 50, and 100mg/kg, i.p.). Plant extracts (250, 500 and 1000 mg/kg, p.o.) also significantly protected the carbon tetrachloride (CCl4)-induced oxidative tissue injury in rat liver. This was reflected by a approximately 60% decline in the levels of serum aminotransferase enzymes. CONCLUSION Aegiceras corniculatum extracts found to possess pronounced antioxidant effect that may be at least in part related to its anti-inflammatory and hepatoprotective activities. This study provides a scientific basis for the ethnomedical claims that Aegiceras corniculatum is effective against inflammation and liver injury.
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Affiliation(s)
- Talat Roome
- Pharmacology Section, HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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Dar A, Faizi S, Naqvi S, Roome T, Zikr-ur-Rehman S, Ali M, Firdous S, Moin ST. Analgesic and antioxidant activity of mangiferin and its derivatives: the structure activity relationship. Biol Pharm Bull 2005; 28:596-600. [PMID: 15802793 DOI: 10.1248/bpb.28.596] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mangiferin, 2-beta-D-glucopyranosyl-1,3,6,7-tetrahydroxy-9H-xanthen-9-one, obtained directly from methanolic extracts of Bombax ceiba leaves in substantial amounts demonstrated strong antioxidant activity (EC(50) 5.8+/-0.96 mug/ml or 13.74 muM) using DPPH assay comparable to rutin, commonly used as antioxidant for medical purposes. The acetyl and cinnamoyl derivatives were found to be less active than mangiferin whereas, methyl and 3,6,7-trimethylether tetraacetate derivatives were inactive implying that for antioxidant activity, free hydroxyl groups and catechol moiety are essential. Moreover, mangiferin showed hepatoprotective activity against carbon tetrachloride induced liver injury further supporting the free radical scavenging property in the in vivo system. Additionally, plant extracts and mangiferin failed to exhibit acute anti-inflammatory activity whereas, it displayed significant analgesic effect in acetic acid-induced writhing and hot plate tests in mice. Using naloxone, it was revealed that plant extracts induced analgesia was independent of opioid receptor, whereas, mangiferin demonstrated significant interaction with it at peripheral site with a slight contribution at the neuronal level.
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Affiliation(s)
- Ahsana Dar
- H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan.
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Dawson DW, Fish DI, Frew ID, Roome T, Tilston I. Laboratory diagnosis of megaloblastic anaemia: current methods assessed by external quality assurance trials. J Clin Pathol 1987; 40:393-7. [PMID: 3584481 PMCID: PMC1140970 DOI: 10.1136/jcp.40.4.393] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The results of an Interregional quality assurance scheme for tests in the diagnosis of megaloblastic anaemia were reviewed to assess the methods used. Serum folate assays showed great variation between methods, partly due to limitations in assessment by external quality assurance. Red cell folate assays yielded widely different results and much imprecision due both to the differences in preparation of the haemolysate and to the problems inherent in radioassay of a mixture of folate compounds. Intrinsic factor antibody tests showed appreciable variation in sensitivity. There was considerable inconsistency in the detection of polymorph nuclear hypersegmentation.
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