1
|
Badraoui R, Mannai G, Siddiqui AJ, Pacioglu O, Rudayni HA, Boufahja F, Essid N. How toxic is the COVID-19 drug azithromycin in the presence of Posidonia oceanica? Toxicokinetics and experimental approach of meiobenthic nematodes from a metallically pristine area. Environ Pollut 2023; 319:121007. [PMID: 36608722 PMCID: PMC9808061 DOI: 10.1016/j.envpol.2023.121007] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/27/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The current study presents the results of an experiment carried to assess the impact of azithromycin, a COVID-19 drug, probably accumulated in marine sediments for three years, since the start of the pandemic, on benthic marine nematodes. It was explored the extent to which a common macrophyte from the Mediterranean Sea influenced the toxic impact of azithromycin on meiobenthic nematodes. Metals are known to influence toxicity of azithromycin. The nematofauna from a metallically pristine site situated in Bizerte bay, Tunisia, was exposed to two concentrations of azithromycin [i.e. 5 and 10 μg l-1]. In addition, two masses of the common macrophyte Posidonia oceanica [10 and 20% Dry Weight (DW)] were considered and associated with azithromycin into four possible combinations. The abundance and the taxonomic diversity of the nematode communities decreased significantly following the exposure to azithromycin, which was confirmed by the toxicokinetic data and behaving as substrate for P-glycoprotein (P-gp). The toxicity of 5 μg l-1 dosage of azithromycin was partially reduced at 10% DW of Posidonia and completely at 20% DW. The results showed that 5 μg l-1 of azithromycin can be reduced by the macrophyte P. oceanica when present in the environment at low masses as 10% DW.
Collapse
Affiliation(s)
- Riadh Badraoui
- Department of Biology, Laboratory of General Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia; Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, La Rabta-Tunis, 1007, Tunisia
| | - Ghofrane Mannai
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Arif J Siddiqui
- Department of Biology, Laboratory of General Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Octavian Pacioglu
- National Institute of Research and Development for Biological Sciences, Bucharest, Romania
| | - Hassan A Rudayni
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia.
| | - Naceur Essid
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| |
Collapse
|
2
|
Badraoui R, Allouche M, El Ouaer D, Siddiqui AJ, Ishak S, Hedfi A, Beyrem H, Pacioglu O, Rudayni HA, Boufahja F. Ecotoxicity of chrysene and phenanthrene on meiobenthic nematodes with a case study of Terschellingia longicaudata: Taxonomics, toxicokinetics, and molecular interactions modelling. Environ Pollut 2023; 316:120459. [PMID: 36273696 DOI: 10.1016/j.envpol.2022.120459] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are toxic for humans and marine fauna alike. The current study assessed the impact of PAHs on the migratory behaviour of meiobenthic nematodes collected from the Bizerte lagoon, Tunisia. The experiment lasted for 15 days and was carried in open microcosms, which comprised a lower, contaminated and an upper, uncontaminated compartment. Three treatments were used, for each of them an untreated control was set up: sediment contaminated with chrysene (116 ng g-1 dry weight (DW), with phenanthrene (116 ng g-1 DW) and a mixture of both. The results showed a significant decrease in diversty and abundance in the lower, contaminated compartments compared to the upper zones. The results also highlighted that under an increased stress some species progressively increased in number, these were considered PAH-tolerant species such as Odontophora villoti, some others had an occasionally increased in number were considered as opportunistic species, such as Paracomesoma dubium and the species that showed a progressive decreased in number, such as Metoncholaimus pristiurus and Steineria sp., Terschellingia. longicaudata, and Oncholaimellus sp. were classified as PAH-sensitive. Moreover, an increase in the activity of biochemical biomarkers was observed following the exposure of males and gravid females of T. longicaudata to 29, 58 and 87 ng g-1 DW of chrysene and phenanthrene paralleled by a higher vulnerability of the latter demographic category. Besides, a significant decrease in fertility of females and an increase in pharyngeal sucking power were observed for both types of PAHs considered. The sex ratio was also significantly imbalanced in the favor of males, which suggest that chrysene and phenanthrene affect also the hormone system of T. longicaudata. The high affinities of these PAHs and their molecular interactions with both germ line development protein 3 (GLD-3) and sex-determining protein (SDP) may justify these results and explain the toxicokinetic attributes.
Collapse
Affiliation(s)
- Riadh Badraoui
- Department of Biology, Laboratory of General Biology, College of Science, University of Ha'il, Ha'il, 81451, Saudi Arabia; Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, 1007 La Rabta, Tunis, Tunisia
| | - Mohamed Allouche
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Dhia El Ouaer
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Arif J Siddiqui
- Department of Biology, Laboratory of General Biology, College of Science, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Sahar Ishak
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Amor Hedfi
- Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Hamouda Beyrem
- University of Carthage, Faculty of Sciences of Bizerte, Laboratory of Environment Biomonitoring, Coastal Ecology and Ecotoxicology Unit, 7021, Zarzouna, Tunisia
| | - Octavian Pacioglu
- National Institute of Research and Development for Biological Sciences, Bucharest, Romania
| | - Hassan A Rudayni
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia.
| |
Collapse
|
3
|
Jebahi S, Ben Salah G, Jarray S, Naffati M, Ahmad MA, Brahmi F, Saeed M, Siddiqui AJ, Abdelmajid K, Badraoui R. Chitosan-Based Gastric Dressing Materials Loaded with Pomegranate Peel as Bioactive Agents: Pharmacokinetics and Effects on Experimentally Induced Gastric Ulcers in Rabbits. Metabolites 2022; 12:metabo12121158. [PMID: 36557196 PMCID: PMC9784949 DOI: 10.3390/metabo12121158] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/07/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
This study reported the fabrication and characterization of gastric dressing, composed of gelatine (GEL), chitosan (CH), and pomegranate peel (PP) extract. The structural changes occurring after γ-irradiation of GEL−CH−PP dressing were reported. The results showed that the electron paramagnetic resonance (EPR) spectroscopy of un-irradiated GEL−CH−PP showed two paramagnetic centers, which corresponded to g = 2.19 and g = 2.002. After irradiation, a new active centre appeared at g = 2.0035 at 10 kGy. The Fourier transform infrared spectroscopy (FTIR) analyses revealed an increase in peak intensity at C−H chains, as well as the C=O carboxyl groups at 10 kGy, due to the cross-linking phenomenon. The X-ray diffraction analysis showed a low change of crystallinity between the range of 2θ (15−30°). Moreover, γ-rays enhanced scavenging DPPH radical activity (51±%) and chelating power activities 79.12%. A significant inhibition of antibacterial and anti-biofilm activities (p < 0.01) was noticed. The hemolysis rates showed 0.42%, suggesting a high hemocompatibility, and exhibited significant anti-inflammatory activity in vitro (48%). In vivo, the healing effects of GEL−CH−PP dressing showed that the incidence and severity of gastric histopathological lesions decreased, compared with the ulcerated group, which could explain the bioavailability and the pharmacokinetic findings. The results highlight the loading of bioactive agents into polymer-based gastric dressings, with promising pharmacokinetics properties and effects on the induced ulcera in rabbits.
Collapse
Affiliation(s)
- Samira Jebahi
- Energy and Matter Research Laboratory, National Center for Sciences and Nuclear Technologies, BiotechPole, Ariana 2020, Tunisia
| | - Ghada Ben Salah
- Department of Pharmacology and Toxicology, Unaizah College of Pharmacy, Qassim University, Buraidah 51452, Saudi Arabia
| | - Soufien Jarray
- Higher Institute of Applied Biology of Mednine, Route El Jorf-Km 22.5-4119 Medenine, University of Gabes, Medenine 4119, Tunisia
| | - Mounir Naffati
- Higher Institute of Applied Biology of Mednine, Route El Jorf-Km 22.5-4119 Medenine, University of Gabes, Medenine 4119, Tunisia
| | - Mohammad Ayaz Ahmad
- Department of Mathematics, Physics & Statistics, University of Guyana, Turkeyen Campus, Georgetown P.O. Box 10-1110, Guyana
| | - Faten Brahmi
- Laboratory of General Biology, Department of Biology, University of Ha’il, Ha’il 81451, Saudi Arabia
| | - Mohd Saeed
- Laboratory of General Biology, Department of Biology, University of Ha’il, Ha’il 81451, Saudi Arabia
| | - Arif J. Siddiqui
- Laboratory of General Biology, Department of Biology, University of Ha’il, Ha’il 81451, Saudi Arabia
| | - Khabir Abdelmajid
- Higher Institute of Applied Biology of Mednine, Route El Jorf-Km 22.5-4119 Medenine, University of Gabes, Medenine 4119, Tunisia
- Laboratory of Histo-Embryology & Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia
| | - Riadh Badraoui
- Laboratory of General Biology, Department of Biology, University of Ha’il, Ha’il 81451, Saudi Arabia
- Laboratory of Histo-Embryology & Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia
- Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, La Rabta, Tunis 1007, Tunisia
- Correspondence: ; Tel.: +216-98-587-492 or +966-531-334-541
| |
Collapse
|
4
|
Snoussi M, Ahmad I, Aljohani AMA, Patel H, Abdulhakeem MA, Alhazmi YS, Tepe B, Adnan M, Siddiqui AJ, Sarikurkcu C, Riadh B, De Feo V, Alreshidi M, Noumi E. Phytochemical Analysis, Antioxidant, and Antimicrobial Activities of Ducrosia flabellifolia: A Combined Experimental and Computational Approaches. Antioxidants (Basel) 2022; 11:2174. [PMID: 36358545 PMCID: PMC9686979 DOI: 10.3390/antiox11112174] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 09/02/2023] Open
Abstract
Ducrosia flabellifolia Boiss. is a rare desert plant known to be a promising source of bioactive compounds. In this paper, we report for the first time the phytochemical composition and biological activities of D. flabellifolia hydroalcoholic extract by using liquid chromatography-electrospray tandem mass spectrometry (ESI-MS/MS) technique. The results obtained showed the richness of the tested extract in phenols, tannins, and flavonoids. Twenty-three phytoconstituents were identified, represented mainly by chlorogenic acid, followed by ferulic acid, caffeic acid, and sinapic acid. The tested hydroalcoholic extract was able to inhibit the growth of all tested bacteria and yeast on agar Petri dishes at 3 mg/disc with mean growth inhibition zone ranging from 8.00 ± 0.00 mm for Enterococcus cloacae (E. cloacae) to 36.33 ± 0.58 mm for Staphylococcus epidermidis. Minimal inhibitory concentration ranged from 12.5 mg/mL to 200 mg/mL and the hydroalcoholic extract from D. flabellifolia exhibited a bacteriostatic and fungistatic character. In addition, D. flabellifolia hydroalcoholic extract possessed a good ability to scavenge different free radicals as compared to standard molecules. Molecular docking studies on the identified phyto-compounds in bacterial, fungal, and human peroxiredoxin 5 receptors were performed to corroborate the in vitro results, which revealed good binding profiles on the examined protein targets. A standard atomistic 100 ns dynamic simulation investigation was used to further evaluate the interaction stability of the promising phytocompounds, and the results showed conformational stability in the binding cavity. The obtained results highlighted the medicinal use of D. flabellifolia as source of bioactive compounds, as antioxidant, antibacterial, and antifungal agent.
Collapse
Affiliation(s)
- Mejdi Snoussi
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
- Laboratory of Genetics, Biodiversity and Valorization of Bio-Resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Avenue Tahar Haddad, BP74, Monastir 5000, Tunisia
| | - Iqrar Ahmad
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra, India
| | | | - Harun Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra, India
| | | | - Yasser S. Alhazmi
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
| | - Bektas Tepe
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, TR-79000 Kilis, Turkey
| | - Mohd Adnan
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
| | - Arif J. Siddiqui
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
| | - Cengiz Sarikurkcu
- Faculty of Pharmacy, Afyonkarahisar Health Sciences University, TR-03100 Afyonkarahisar, Turkey
| | - Badraoui Riadh
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
- Section of Histology Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, La Rabta 1007, Road Djebal Lakhdhar, Tunis 1007, Tunisia
- Department of HistoEmbryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Road of Majida Boulia, Sfax 3029, Tunisia
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, 84084 Salerno, Italy
| | - Mousa Alreshidi
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
- Molecular Diagnostics and Personalized Therapeutics Unit, University of Hail, Ha’il 2440, Saudi Arabia
| | - Emira Noumi
- Department of Biology, College of Science, University of Hail, Ha’il 2440, Saudi Arabia
| |
Collapse
|
5
|
Lonnberg F, Farm M, Andre H, Okas M, Roos A, Siddiqui AJ. Causes of death in an unselected population with first time venous thromboembolism. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and aim
Causes of death in an unselected population with first-time community acquired venous thromboembolism (VTE) is largely unknown in the contemporary era of direct oral anticoagulation (DOAC).
Material and methods
All patients >18 years of age who had a visit for any medical reason to any of 5 different emergency departments (EDs) in our city from 1st January 2016 to 31st December 2017 were included. We identified all patients with any incident VTE (deep vein thrombosis (DVT) and/or pulmonary embolism (PE)) at the time of the ED visit. Cox regression models were used to estimate hazards ratios (HR) with 95% confidence intervals (CIs) for all-cause mortality and cause-specific death in patients with any VTE, using all other ED patients as the reference group.
Results
In total, 409,971 patients had an ED visit during the study period, of whom 2% were diagnosed with VTE (DVT= 4,817, PE= 3,147). During a median follow up of 2.6 years, 1265 (16%) and 25,191 (6.3%) patients died within the VTE and reference group respectively. The adjusted risk of cancer related death was nearly 3-fold in patient with DVT (HR 2.7; 95% CI, 2.4–3.1), and 5-fold in PE patients (HR 4.6; 95% CI, 4.1–5.1 respectively), compared to the referent. A diagnosis of PE at the ED visit was associated with a 50% increased risk of cardiovascular death (HR 1.5; 95% CI, 1.2–1.9).
Conclusion
Patients with VTE have a high risk of all-cause mortality, including non-cancer related death and cardiovascular death despite improvements of diagnosis and treatment with DOAC. The study findings indicate that further improvement is needed in VTE management.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- F Lonnberg
- Karolinska University Hospital, Emergency Medicine , Stockholm , Sweden
| | - M Farm
- Karolinska Institutet , Stockholm , Sweden
| | - H Andre
- Capio St Goran Hospital, Emergency Med , Stockholm , Sweden
| | - M Okas
- Capio St Goran Hospital, Emergency Med , Stockholm , Sweden
| | - A Roos
- Karolinska University Hospital, Emergency Medicine , Stockholm , Sweden
| | - A J Siddiqui
- Karolinska University Hospital, Emergency Medicine , Stockholm , Sweden
| |
Collapse
|
6
|
Jedli O, Ben-Nasr H, Zammel N, Rebai T, Saoudi M, Elkahoui S, Jamal A, Siddiqui AJ, Sulieman AE, Alreshidi MM, Naïli H, Badraoui R. Attenuation of ovalbumin-induced inflammation and lung oxidative injury in asthmatic rats by Zingiber officinale extract: combined in silico and in vivo study on antioxidant potential, STAT6 and TNF- α pathways. 3 Biotech 2022; 12:191. [PMID: 35910291 PMCID: PMC9325939 DOI: 10.1007/s13205-022-03249-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/02/2022] [Indexed: 01/18/2023] Open
Abstract
In the present study we focused on the anti-asthmatic and antioxidant effects of Zingiber officinalis roscoe L. (ZO) aqueous extract. This study includes 20 adult male rats, which were grouped into four; Group I: control group; Group II: asthmatic group (Ovalbumin sensitized/challenge model, Oval group); Group III: received ovalbumin sensitized/challenge associated a dose of 207 mg/kg body weight (BW) of ZO (Oval + D1 group); Group IV: received ovalbumin sensitized/challenge associated a dose of 414 mg/k BW of ZO (Oval + D2 group). After 21 days, blood and lung samples were collected for biochemical, hematological, and histopathological analyses. The ameliorative effect of ZO phytochemical compounds was also assessed by in silico approach on transducer and activator of transcription 6 (STAT6) and tumor necrosis factor-α (TNF-α) receptors. The oxidative/antioxidative status was evaluated in the lung tissues. Our results show that ZO extract alleviated the ovalbumin-induced hematological and biochemical disruptions associated oxidative injury. In fact, white and red blood cells (WBC and RBC, respectively), aspartate aminotransaminase (ASAT), malondialdehyde (MDA), glutathione (GSH), and glutathione peroxidase (GPx) were significantly disrupted (p < 0.05) in Oval group and alleviated following ZO treatment. Besides, several histopathological features were outlined in lung tissues of Oval group. Interestingly, ZO was found to exert ameliorative effects on tissue level. In silico analyses, particularly the binding affinities, the number of H-bonds, the embedding distance and the molecular interactions of ZO phytochemical compounds with either STAT6 or TNF-α supported the in vivo results. These findings confirm the potential ethno-pharmacological effects of ZO against asthma and its associated complications.
Collapse
Affiliation(s)
- Olfa Jedli
- Laboratory of Histo-Embryology & Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - Hmed Ben-Nasr
- Laboratory of Pharmacology, Medicine Faculty of Sfax, University of Sfax, Majida Boulila Street, 3029 Sfax, Tunisia
| | - Nourhène Zammel
- Laboratory of Histo-Embryology & Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - Tarek Rebai
- Laboratory of Histo-Embryology & Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - Mongi Saoudi
- Laboratory of Animal Ecophysiology, Department of Biology, Faculty of Sciences, University of Sfax, 3054 Sfax, Tunisia
| | - Salem Elkahoui
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
| | - Arshad Jamal
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
| | - Arif J. Siddiqui
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
| | - Abdelmoneim E. Sulieman
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
| | - Mousa M. Alreshidi
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
| | - Houcine Naïli
- Laboratory of Solid State (LR11ES51), Faculty of Sciences, University of Sfax, 3000 Sfax, Tunisia
| | - Riadh Badraoui
- Laboratory of General Biology, Department of Biology, University Ha’il, Ha’il, 81451 Saudi Arabia
- Section of Histology Cytology, Medicine Faculty of Tunis, El Manar University, 1007 La Rabta-Tunis, Tunisia
| |
Collapse
|
7
|
Rahmouni F, Badraoui R, Ben-Nasr H, Bardakci F, Elkahoui S, Siddiqui AJ, Saeed M, Snoussi M, Saoudi M, Rebai T. Pharmacokinetics and Therapeutic Potential of Teucrium polium against Liver Damage Associated Hepatotoxicity and Oxidative Injury in Rats: Computational, Biochemical and Histological Studies. Life (Basel) 2022; 12:life12071092. [PMID: 35888180 PMCID: PMC9321387 DOI: 10.3390/life12071092] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 01/18/2023]
Abstract
This study investigated the druggability, pharmacokinetics and ethyl acetate extract of Teucrium polium (EA T. polium) and the protective effect against carbon tetrachloride (CCl4) induced liver cirrhosis in rats. The total antioxidant capacity (TAC) and scavenging activity of the extract were examined. The in vivo protective study was based on the use of an animal model of CCl4-induced liver cirrhosis. Four groups of rats have been used: Group I: control rats; Group II: received CCl4 in olive oil (0.5 mL/kg); Group III: received the EA T. polium (25 mg/kg) of pretreatment for seven days by gavage then CCl4 in olive oil by gavage for 15 days. Group IV: received the EA of T. polium for seven days (25 mg/kg). EA T. polium was found to possess significant antioxidant capacity. CCl4 caused a hepatotoxicity associated increase in both levels of AST and ALT, which were reduced back to normal values following EA T. polium pretreatment. Hepatotoxicity associated structural modifications of liver tissues and increase in thiobarbituric acid reactive substances (TBARS), conjugated dienes (CD) and carbonyl proteins (CP), associated decreases in several assessed antioxidant enzymes such as superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT). The in vivo findings on the protective effect of T. polium were supported by its druggability, its pharmacokinetic properties and molecular docking assays. These results confirm the modulatory antioxidant and hepatoprotective potential of T. polium in this experimental liver cirrhosis model. T. polium phytochemicals are good candidates for further pharmaceutical explorations and drug design.
Collapse
Affiliation(s)
- Fatma Rahmouni
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia; (F.R.); (T.R.)
| | - Riadh Badraoui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
- Section of Histology-Cytology, Medicine Faculty of Tunis, Tunis El Manar University, La Rabta, Tunis 1007, Tunisia
- Correspondence:
| | - Hmed Ben-Nasr
- Laboratory of Pharmacology, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia;
- Department of Biology, Faculty of Sciences of Gafsa, University of Gafsa, Zarroug, Gafsa 2112, Tunisia
| | - Fevzi Bardakci
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Salem Elkahoui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Arif J. Siddiqui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mohd Saeed
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mejdi Snoussi
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mongi Saoudi
- Laboratory of Animal Physiology, Sciences Faculty of Sfax, University of Sfax, Sfax 3064, Tunisia;
| | - Tarek Rebai
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia; (F.R.); (T.R.)
| |
Collapse
|
8
|
Zammel N, Jedli O, Rebai T, Hamadou WS, Elkahoui S, Jamal A, Alam JM, Adnan M, Siddiqui AJ, Alreshidi MM, Naïli H, Badraoui R. Kidney injury and oxidative damage alleviation by Zingiber officinale: pharmacokinetics and protective approach in a combined murine model of osteoporosis. 3 Biotech 2022; 12:112. [PMID: 35462952 PMCID: PMC8995235 DOI: 10.1007/s13205-022-03170-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/19/2022] [Indexed: 02/07/2023] Open
Abstract
Ginger (Zingiber officinale) is considered as a nutraceutical spice, which possesses several health promotion and benefits. This study was carried out to investigate the phyto-chemical composition, the antioxidant capacities, the drug-likeness, and pharmacokinetic properties of ginger extract on kidney injury-associated osteoporosis in rats. Phenolic and flavonoid contents were assessed by standard chemical analysis methods and HPLC. In vivo protective effect was based on the use of female rats to evaluate the effect on renal injury as a result of combined osteoporosis using biochemical markers, oxidative status, and histological analyses. Results showed that ZO contained appreciable amounts of phenolics and flavonoids and it exhibited high scavenging activity. Ovariectomy-associated corticotherapy induced severe renal injury marked by altered biochemical markers (creatinine, urea, and uric acid), reduced GFR, significative oxidative damage signs, and disrupted antioxidant status in the combined osteoporotic rats. The histopathological examination revealed structural modifications of kidney tissues. However, all these changes were reversed following the use of ZO. These results confirm the renoprotective and antioxidant potential of ginger against renal injuries in osteoporotic rats.
Collapse
Affiliation(s)
- Nourhene Zammel
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, 3029 Sfax, Tunisia
| | - Olfa Jedli
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, 3029 Sfax, Tunisia
| | - Tarek Rebai
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, 3029 Sfax, Tunisia
| | - Walid S. Hamadou
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Salem Elkahoui
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Arshad Jamal
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Jahoor M. Alam
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Mohd Adnan
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Arif J. Siddiqui
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Mousa M. Alreshidi
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
| | - Houcine Naïli
- Laboratory of Solid State, Sciences Faculty of Sfax, University of Sfax, 3064 Sfax, Tunisia
| | - Riadh Badraoui
- Department of Biology, University of Ha’il, 81451 Ha’il, Kingdom of Saudi Arabia
- Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, 1007 La Rabta-Tunis, Tunisia
| |
Collapse
|
9
|
Badraoui R, Saeed M, Bouali N, Hamadou WS, Elkahoui S, Alam MJ, Siddiqui AJ, Adnan M, Saoudi M, Rebai T. Expression Profiling of Selected Immune Genes and Trabecular Microarchitecture in Breast Cancer Skeletal Metastases Model: Effect of α-Tocopherol Acetate Supplementation. Calcif Tissue Int 2022; 110:475-488. [PMID: 34988595 DOI: 10.1007/s00223-021-00931-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/18/2021] [Indexed: 01/26/2023]
Abstract
Breast cancer bone metastases (BCBM) result in serious skeletal morbidity. Although there have been important advances in cancer treatment methods such as surgery and chemotherapy, the complementary treatments, such as α-tocopherol acetate (ATA), still remain of key role via complementary and/or synergistic effects. The aim of this work was to study immune response in a rat model of BCBM due to Walker 256/B cells inoculation and the effect of ATA alone. Compared to the control group (CTRL), rat injected with Walker 256/B cells (5 × 104) in the medullar cavity (W256 group) showed osteolytic damages with marked tumor osteolysis of both cancellous and trabecular bone as assessed by X-ray radiology, micro-computed tomography, and histology. Rats inoculated with Walker 256/B cells and treated with ATA (45 mg/kg BW, W256ATA group) presented marked less tumor osteolysis, less disturbance of Tb.Th and Tb.Sp associated with conversion of rods into plates, and increased structure model index and trabecular pattern factor (Tb.Pf). Elsewhere, 3D frequency distributions of Tb.Th and Tb.Sp were highly disturbed in metastatic W256 rats. Overexpression of some genes commonly associated with cancer and metastatic proliferation: COX-2, TNF-α, and pro-inflammatory interleukins 1 and 6 was outlined. ATA alleviated most of the Walker 256/B cells-induced microarchitectural changes in the target parameters without turning back to normal levels. Likewise, it alleviates the BCSM-induced overexpression of COX-2, TNF-α, IL-1, and IL-6. In silico approach showed that ATA bound these proteins with high affinities, which satisfactory explain its beneficial effects. In conclusion, BCBM is associated with bone microarchitectural disorders and an immune response characterized by an overexpression of some key role genes in cancer proliferation and invasion. ATA exerted favorable effects on trabecular bone distribution and morphology, which may involve the COX-2, TNF-α, and ILs pathways.
Collapse
Affiliation(s)
- Riadh Badraoui
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia.
- Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, La Rabta, 1007, Tunis, Tunisia.
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, 3029, Sfax, Tunisia.
| | - Mohd Saeed
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Nouha Bouali
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
- Research Unit "Biologie Moléculaire Des Leucémies Et Lymphomes", Laboratory of Biochemistry, Medicine Faculty of Sousse University, 4002, Sousse, Tunisia
| | - Walid S Hamadou
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
- Research Unit "Biologie Moléculaire Des Leucémies Et Lymphomes", Laboratory of Biochemistry, Medicine Faculty of Sousse University, 4002, Sousse, Tunisia
| | - Salem Elkahoui
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
- Laboratory of Bioactive Substances, Center of Biotechnology of Borj Cedria (CBBC), 2050, Hammam-Lif, Tunisia
| | - Mohammad J Alam
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Arif J Siddiqui
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Mohd Adnan
- Laboratory of General Biology, Department of Biology, University of Ha'il, Ha'il, 81451, Saudi Arabia
| | - Mongi Saoudi
- Laboratory Animal Physiology, Department of Biology, College of Science, University of Sfax, 3045, Sfax, Tunisia
| | - Tarek Rebai
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, 3029, Sfax, Tunisia
| |
Collapse
|
10
|
Saeed M, Kausar MA, Singh R, Siddiqui AJ, Akhter A. The Role of Glyoxalase in Glycation and Carbonyl Stress Induced Metabolic Disorders. Curr Protein Pept Sci 2021; 21:846-859. [PMID: 32368974 DOI: 10.2174/1389203721666200505101734] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/09/2019] [Accepted: 12/08/2019] [Indexed: 12/14/2022]
Abstract
Glycation refers to the covalent binding of sugar molecules to macromolecules, such as DNA, proteins, and lipids in a non-enzymatic reaction, resulting in the formation of irreversibly bound products known as advanced glycation end products (AGEs). AGEs are synthesized in high amounts both in pathological conditions, such as diabetes and under physiological conditions resulting in aging. The body's anti-glycation defense mechanisms play a critical role in removing glycated products. However, if this defense system fails, AGEs start accumulating, which results in pathological conditions. Studies have been shown that increased accumulation of AGEs acts as key mediators in multiple diseases, such as diabetes, obesity, arthritis, cancer, atherosclerosis, decreased skin elasticity, male erectile dysfunction, pulmonary fibrosis, aging, and Alzheimer's disease. Furthermore, glycation of nucleotides, proteins, and phospholipids by α-oxoaldehyde metabolites, such as glyoxal (GO) and methylglyoxal (MGO), causes potential damage to the genome, proteome, and lipidome. Glyoxalase-1 (GLO-1) acts as a part of the anti-glycation defense system by carrying out detoxification of GO and MGO. It has been demonstrated that GLO-1 protects dicarbonyl modifications of the proteome and lipidome, thereby impeding the cell signaling and affecting age-related diseases. Its relationship with detoxification and anti-glycation defense is well established. Glycation of proteins by MGO and GO results in protein misfolding, thereby affecting their structure and function. These findings provide evidence for the rationale that the functional modulation of the GLO pathway could be used as a potential therapeutic target. In the present review, we summarized the newly emerged literature on the GLO pathway, including enzymes regulating the process. In addition, we described small bioactive molecules with the potential to modulate the GLO pathway, thereby providing a basis for the development of new treatment strategies against age-related complications.
Collapse
Affiliation(s)
- Mohd Saeed
- Department of Biology, College of Sciences, University of Hail, Hail, Saudi Arabia
| | - Mohd Adnan Kausar
- Department of Biochemistry, College of Medicine, University of Hail, Hail, Saudi Arabia
| | - Rajeev Singh
- Department of Environmental Studies, Sataywati College, Delhi University, Delhi, India
| | - Arif J Siddiqui
- Department of Biology, College of Sciences, University of Hail, Hail, Saudi Arabia
| | - Asma Akhter
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh 226026, India
| |
Collapse
|
11
|
Zhang W, Le L, Ahmad G, Molehin AJ, Siddiqui AJ, Torben W, Karmakar S, Rojo JU, Sennoune S, Lazarus S, Khatoon S, Freeborn J, Sudduth J, Rezk AF, Carey D, Wolf RF, Papin JF, Damian R, Gray SA, Marks F, Carter D, Siddiqui AA. Fifteen Years of Sm-p80-Based Vaccine Trials in Nonhuman Primates: Antibodies From Vaccinated Baboons Confer Protection in vivo and in vitro From Schistosoma mansoni and Identification of Putative Correlative Markers of Protection. Front Immunol 2020; 11:1246. [PMID: 32636844 PMCID: PMC7318103 DOI: 10.3389/fimmu.2020.01246] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/18/2020] [Indexed: 12/11/2022] Open
Abstract
Recent advances in systems biology have shifted vaccine development from a largely trial-and-error approach to an approach that promote rational design through the search for immune signatures and predictive correlates of protection. These advances will doubtlessly accelerate the development of a vaccine for schistosomiasis, a neglected tropical disease that currently affects over 250 million people. For over 15 years and with contributions of over 120 people, we have endeavored to test and optimize Sm-p80-based vaccines in the non-human primate model of schistosomiasis. Using RNA-sequencing on eight different Sm-p80-based vaccine strategies, we sought to elucidate immune signatures correlated with experimental protective efficacy. Furthermore, we aimed to explore the role of antibodies through in vivo passive transfer of IgG obtained from immunized baboons and in vitro killing of schistosomula using Sm-p80-specific antibodies. We report that passive transfer of IgG from Sm-p80-immunized baboons led to significant worm burden reduction, egg reduction in liver, and reduced egg hatching percentages from tissues in mice compared to controls. In addition, we observed that sera from Sm-p80-immunized baboons were able to kill a significant percent of schistosomula and that this effect was complement-dependent. While we did not find a universal signature of immunity, the large datasets generated by this study will serve as a substantial resource for further efforts to develop vaccine or therapeutics for schistosomiasis.
Collapse
Affiliation(s)
- Weidong Zhang
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Loc Le
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Gul Ahmad
- Department of Natural Sciences, Peru State College, Peru, NE, United States
| | - Adebayo J. Molehin
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | | | - Workineh Torben
- Department of Biological Sciences, Louisiana State University of Alexandria, Alexandria, LA, United States
| | - Souvik Karmakar
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Juan U. Rojo
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH, United States
| | - Souad Sennoune
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Samara Lazarus
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Sabiha Khatoon
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Jasmin Freeborn
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Justin Sudduth
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Ashraf F. Rezk
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - David Carey
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Roman F. Wolf
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Oklahoma City VA Health Care System, Oklahoma City, OK, United States
| | - James F. Papin
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Ray Damian
- Department of Cellular Biology, University of Georgia, Athens, GA, United States
| | | | - Florian Marks
- International Vaccine Institute, SNU Research Park, Seoul, South Korea
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Darrick Carter
- PAI Life Sciences, Seattle, WA, United States
- Infectious Disease Research Institute, Seattle, WA, United States
| | - Afzal A. Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| |
Collapse
|
12
|
Melkus MW, Le L, Siddiqui AJ, Molehin AJ, Zhang W, Lazarus S, Siddiqui AA. Elucidation of Cellular Responses in Non-human Primates With Chronic Schistosomiasis Followed by Praziquantel Treatment. Front Cell Infect Microbiol 2020; 10:57. [PMID: 32154190 PMCID: PMC7050631 DOI: 10.3389/fcimb.2020.00057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/05/2020] [Indexed: 12/13/2022] Open
Abstract
For decades, mass drug treatment with praziquantel (PZQ) has been utilized to treat schistosomiasis, yet reinfection and the risk of drug resistance are among the various factors precluding successful elimination of schistosomiasis. Tractable models that replicate "real world" field conditions are crucial to effectively evaluate putative schistosomiasis vaccines. Herein, we describe the cellular immune responses and cytokine expression profiles under field conditions that include prior infection with schistosomes followed by treatment with PZQ. Baboons were exposed to Schistosoma mansoni cercariae through trickle infection over 5 weeks, allowed for chronic disease to develop, and then treated with PZQ. Peripheral blood mononuclear cells (PBMCs) were monitored for cellular immune response(s) at each disease stage and PZQ therapy. After initial infection and during chronic disease, there was an increase in non-classical monocytes, NK and NKT cells while the CD4:CD8 T cell ratio inverted from a 2:1 to 1:2.5. The cytokine expressions of PBMCs after trickle infections were polarized more toward a Th2 response with a gradual increase in Th1 cytokine expression at chronic disease stage. Following PZQ treatment, with the exception of an increase in B cells, immune cell populations reverted back toward naïve levels; however, expression of almost all Th1, Th2, and Th17 cytokines was significantly increased. This preliminary study is the first to follow the cellular immune response and cytokine expression profiles in a non-human primate model simulating field conditions of schistosomiasis and PZQ therapy, providing a promising reference in predicting the immune response to future vaccines for schistosomiasis.
Collapse
Affiliation(s)
- Michael W Melkus
- Department of Surgery, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Loc Le
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Arif J Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Biology, University of Hail, Hail, Saudi Arabia
| | - Adebayo J Molehin
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Weidong Zhang
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Samra Lazarus
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Afzal A Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| |
Collapse
|
13
|
Kadesjo E, Roos A, Siddiqui AJ, Sartipy U, Holzmann MJ. P1543Causes of death in patients with myocardial infarction, and non-ischemic myocardial injury. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Information about causes of death in patients with non-ischemic acute and chronic myocardial injury is limited.
Purpose
To explore causes of death, mortality rates and risks of cardiovascular and non-cardiovascular causes of death in patients with type 1 MI (T1MI), type 2 MI (T2MI), and acute and chronic myocardial injury compared with patients without myocardial injury.
Methods
From a cohort of 39,558 patients who visited the ED at our University Hospital during 2011–2014 and who had high-sensitivity cardiac troponin T (hs-cTnT) levels measured, we identified 3,853 patients with hs-cTnT levels above the 99th percentile value and categorised them into the following groups: i) T1MI, ii) T2MI, iii) acute and iv) chronic myocardial injury. Among these we included all patients who died during follow-up. Causes of death were obtained from the Swedish Cause-of-Death register. All deaths among patients without myocardial injury (n=819) from the same cohort were used for comparison. We calculated incidence rates of cause-specific deaths in the different groups and used logistic regression to estimate odds ratios (OR) with 95% confidence intervals (CIs) adjusted for age and sex for different causes of death, using patients without myocardial injury as referent.
Results
2,285 patients died during follow-up at a mean age of 76 (±13) years of whom 46% were female. Patients without myocardial injury died at a younger age (mean 70 years) compared with patients in the groups with myocardial injury (mean 79–82 years). The proportion of cardiovascular (CV) deaths were considerably higher in patients with T1MI (48%), T2MI (39%), acute (43%), and chronic (45%) myocardial injury compared with patients with no myocardial injury (25%). 42% of patients without myocardial injury died from cancer, compared with 18% to 24% among patients with different myocardial injury. Age- and sex-adjusted incidence rates for CV-death were similar for T1MI, T2MI and acute myocardial injury (27 per 100 person-years), slightly lower in patients with chronic myocardial injury (22 per 100 person-years) and almost half in patients with no myocardial injury (14 per 100 person-years). The adjusted ORs with 95% CIs for CV death were highest in patients with T1MI (1.99, 1.48–2.69) and acute myocardial injury (1.72, 1.29–2.11), while only marginally lower in patients with T2MI and chronic myocardial injury (1.43, (0.94–2.16), and 1.65, (1.29–2.11) respectively).
Conclusions
Patients with T1MI and acute or chronic myocardial injury have similar risks to die from cardiovascular causes. Patients without myocardial injury died younger and the proportions of cancer-related deaths were twice as high as in the groups with myocardial injury. Proportions and risks of CV-death among patients with T2MI were higher than in patients without myocardial injury, but lower than in patients with T1MI and acute or chronic myocardial injury.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- E Kadesjo
- Karolinska Institute, Stockholm, Sweden
| | - A Roos
- Karolinska Institute, Stockholm, Sweden
| | | | - U Sartipy
- Karolinska Institute, Stockholm, Sweden
| | | |
Collapse
|
14
|
Zhang W, Molehin AJ, Rojo JU, Sudduth J, Ganapathy PK, Kim E, Siddiqui AJ, Freeborn J, Sennoune SR, May J, Lazarus S, Nguyen C, Redman WK, Ahmad G, Torben W, Karmakar S, Le L, Kottapalli KR, Kottapalli P, Wolf RF, Papin JF, Carey D, Gray SA, Bergthold JD, Damian RT, Mayer BT, Marks F, Reed SG, Carter D, Siddiqui AA. Sm-p80-based schistosomiasis vaccine: double-blind preclinical trial in baboons demonstrates comprehensive prophylactic and parasite transmission-blocking efficacy. Ann N Y Acad Sci 2018; 1425:38-51. [PMID: 30133707 PMCID: PMC6110104 DOI: 10.1111/nyas.13942] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/06/2018] [Accepted: 07/10/2018] [Indexed: 01/01/2023]
Abstract
Schistosomiasis is of public health importance to an estimated one billion people in 79 countries. A vaccine is urgently needed. Here, we report the results of four independent, double-blind studies of an Sm-p80-based vaccine in baboons. The vaccine exhibited potent prophylactic efficacy against transmission of Schistosoma mansoni infection and was associated with significantly less egg-induced pathology, compared with unvaccinated control animals. Specifically, the vaccine resulted in a 93.45% reduction of pathology-producing female worms and significantly resolved the major clinical manifestations of hepatic/intestinal schistosomiasis by reducing the tissue egg-load by 89.95%. A 35-fold decrease in fecal egg excretion in vaccinated animals, combined with an 81.51% reduction in hatching of eggs into the snail-infective stage (miracidia), demonstrates the parasite transmission-blocking potential of the vaccine. Substantially higher Sm-p80 expression in female worms and Sm-p80-specific antibodies in vaccinated baboons appear to play an important role in vaccine-mediated protection. Preliminary analyses of RNA sequencing revealed distinct molecular signatures of vaccine-induced effects in baboon immune effector cells. This study provides comprehensive evidence for the effectiveness of an Sm-p80-based vaccine for schistosomiasis.
Collapse
Affiliation(s)
- Weidong Zhang
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Adebayo J. Molehin
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Juan U. Rojo
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH
| | - Justin Sudduth
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Pramodh K. Ganapathy
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Eunjee Kim
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Arif J. Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Jasmin Freeborn
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Souad R. Sennoune
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Jordan May
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Samra Lazarus
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Catherine Nguyen
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Whitni K. Redman
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| | - Gul Ahmad
- Department of Natural Sciences, Peru State College, Peru, NE
| | | | - Souvik Karmakar
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Loc Le
- Biomedical Research Institute, Rockville, MD
| | | | | | - Roman F. Wolf
- Oklahoma City VA Health Care System, Oklahoma City, OK
| | - James F. Papin
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - David Carey
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | | | | | - Raymond T. Damian
- Department of Cellular Biology, University of Georgia, Athens, Georgia
| | - Bryan T. Mayer
- Vaccine Immunology Statistical Center, Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Florian Marks
- International Vaccine Institute SNU Research Park, Seoul, South Korea
- The Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | | | - Darrick Carter
- PAI Life Sciences, Seattle, Washington, WA
- Infectious Disease Research Institute, Seattle, WA
| | - Afzal A. Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, TX
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX
| |
Collapse
|
15
|
Siddiqui AJ, Molehin AJ, Zhang W, Ganapathy PK, Kim E, Rojo JU, Redman WK, Sennoune SR, Sudduth J, Freeborn J, Hunter D, Kottapalli KR, Kottapalli P, Wettashinghe R, Dam GJ, Corstjens PL, Papin JF, Carey D, Torben W, Ahmad G, Siddiqui AA. Cover Image, Volume 1425, Issue 1. Ann N Y Acad Sci 2018. [DOI: 10.1111/nyas.13959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
16
|
Zhang W, Ahmad G, Molehin AJ, Torben W, Le L, Kim E, Lazarus S, Siddiqui AJ, Carter D, Siddiqui AA. Schistosoma mansoni antigen Sm-p80: prophylactic efficacy using TLR4 agonist vaccine adjuvant glucopyranosyl lipid A-Alum in murine and non-human primate models. J Investig Med 2018; 66:1124-1132. [PMID: 29997146 PMCID: PMC6288690 DOI: 10.1136/jim-2018-000786] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2018] [Indexed: 01/06/2023]
Abstract
Sm-p80, the large subunit of Schistosoma mansoni calpain, is a leading candidate for a schistosomiasis vaccine. The prophylactic and antifecundity efficacy of Sm-p80 has been tested in three animal models (mouse, hamster and baboon) using a multitude of vaccine formulations and approaches. In our continual effort to enhance the vaccine efficacy, in this study, we have utilized the adjuvant, synthetic hexa-acylated lipid A derivative, glucopyranosyl lipid A (GLA) formulated in aluminum (GLA-Alum) with recombinant Sm-p80. The rSm-p80+GLA-Alum immunization regimen provided 33.33%–53.13% reduction in worm burden in the mouse model and 38% worm burden reduction in vaccinated baboons. Robust Sm-p80-specific immunoglobulin (Ig)G, IgG1, IgG2a and IgM responses were observed in all immunized animals. The rSm-p80+GLA-Alum coadministration induced a mix of T-helper (Th) cells (Th1, Th2 and Th17) responses as determined via the release of interleukin (IL)-2, IL-4, IL-18, IL-21, IL-22 and interferon-γ.
Collapse
Affiliation(s)
- Weidong Zhang
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Gul Ahmad
- Department of Natural Sciences, School of Arts & Sciences, Peru State College, Peru, Nebraska, USA
| | - Adebayo J Molehin
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Workineh Torben
- Comparative Pathology/Immunology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Loc Le
- Bladder Immunology Group, Biomedical Research Institute, Rockville, Maryland, USA
| | - Eunjee Kim
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Samra Lazarus
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Arif J Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | | | - Afzal A Siddiqui
- Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| |
Collapse
|
17
|
Siddiqui AJ, Molehin AJ, Zhang W, Ganapathy PK, Kim E, Rojo JU, Redman WK, Sennoune SR, Sudduth J, Freeborn J, Hunter D, Kottapalli KR, Kottapalli P, Wettashinghe R, van Dam GJ, Corstjens PLAM, Papin JF, Carey D, Torben W, Ahmad G, Siddiqui AA. Sm-p80-based vaccine trial in baboons: efficacy when mimicking natural conditions of chronic disease, praziquantel therapy, immunization, and Schistosoma mansoni re-encounter. Ann N Y Acad Sci 2018; 1425:19-37. [PMID: 29888790 DOI: 10.1111/nyas.13866] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 03/09/2018] [Revised: 04/27/2018] [Accepted: 05/02/2018] [Indexed: 11/28/2022]
Abstract
Sm-p80-based vaccine efficacy for Schistosoma mansoni was evaluated in a baboon model of infection and disease. The study was designed to replicate a human vaccine implementation scenario for endemic regions in which vaccine would be administered following drug treatment of infected individuals. In our study, the Sm-p80-based vaccine reduced principal pathology producing hepatic egg burdens by 38.0% and egg load in small and large intestines by 72.2% and 49.4%, respectively, in baboons. Notably, hatching rates of eggs recovered from liver and small and large intestine of vaccinated animals were significantly reduced, by 60.4%, 48.6%, and 82.3%, respectively. Observed reduction in egg maturation/hatching rates was supported by immunofluorescence and confocal microscopy showing unique differences in Sm-p80 expression in worms of both sexes and matured eggs. Vaccinated baboons had a 64.5% reduction in urine schistosome circulating anodic antigen, a parameter that reflects worm numbers/health status in infected hosts. Preliminary analyses of RNA sequencing revealed unique genes and canonical pathways associated with establishment of chronic disease, praziquantel-mediated parasite killing, and Sm-p80-mediated protection in vaccinated baboons. Overall, our study demonstrated efficacy of the Sm-p80 vaccine and provides insight into some of the epistatic interactions associated with protection.
Collapse
Affiliation(s)
- Arif J Siddiqui
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Adebayo J Molehin
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Weidong Zhang
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Pramodh K Ganapathy
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Eunjee Kim
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Juan U Rojo
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, New Hampshire
| | - Whitni K Redman
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Souad R Sennoune
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Justin Sudduth
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Jasmin Freeborn
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Derick Hunter
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| | | | - Pratibha Kottapalli
- Center for Biotechnology and Genomics, Texas Tech University, Lubbock, Texas
| | | | - Govert J van Dam
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Paul L A M Corstjens
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - James F Papin
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - David Carey
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Workineh Torben
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, Louisiana
| | - Gul Ahmad
- Department of Biology, School of Arts & Sciences, Peru State College, Peru, Nebraska
| | - Afzal A Siddiqui
- School of Medicine, Center for Tropical Medicine and Infectious Diseases, Texas Tech University Health Sciences Center, Lubbock, Texas.,Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas
| |
Collapse
|
18
|
Farm M, Siddiqui AJ, Onelöv L, Järnberg I, Eintrei J, Maskovic F, Kallner A, Holmström M, Antovic JP. Age-adjusted D-dimer cut-off leads to more efficient diagnosis of venous thromboembolism in the emergency department: a comparison of four assays. J Thromb Haemost 2018; 16:866-875. [PMID: 29505695 DOI: 10.1111/jth.13994] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 07/28/2017] [Indexed: 11/29/2022]
Abstract
Essentials Age-adjusted D-dimer cut-offs decrease the false positives in the elderly. Four D-dimer assays were compared in venous thromboembolism outpatients in an emergency ward. Age-adjusted cut-off resulted in improved specificity with maintained sensitivity for all assays. There was a substantial decrease in false positive results, especially in the older population. SUMMARY Background The study compares different D-dimer assays and age-adjusted cut-offs in outpatients with suspected venous thromboembolism (VTE). The plasma concentration of this sensitive biomarker is increased by activated coagulation, but also by several conditions that are linked to an increased risk of VTE. One such condition is old age, which poses a common clinical problem where many prefer not to analyze D-dimer in elderly patients. Age-adjusted cut-offs have been validated for both deep venous thrombosis (DVT) and pulmonary embolism, aiming to increase specificity without notably decreasing sensitivity. Objectives We evaluated four common D-dimer assays in parallel, with and without applying age-adjusted cut offs for VTE. Patients/methods The prospective single-center study was conducted in 940 outpatients attending the emergency department with clinically suspected pulmonary embolism or DVT. Four automated D-dimer assays were compared (Siemens INNOVANCE® , Roche Tina-quant, Medirox MRX and STA® -Liatest® D-Di PLUS). Results All assays performed with areas under the ROC curve (AUC) > 0.9 and maintained their sensitivities after implementation of age-adjusted cut-offs. Specificities increased by 6-7% and number needed to test decreased by < 0.3. The rate of false positive results decreased by 6% overall and by 10-20% for patients ≥ 70. Conclusions Age-adjusted cut-offs resulted in maintained high sensitivity and a modest improvement in specificity and number needed to test for all evaluated D-dimer assays. There was a significant reduction in false positive results, which reflects avoidable unnecessary imaging without any compromise of clinical safety. This suggests a potential to benefit the management of VTE in elderly patients, both clinically and economically.
Collapse
Affiliation(s)
- M Farm
- Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - A J Siddiqui
- Emergency Department, Karolinska University Hospital, Stockholm, Sweden
| | - L Onelöv
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - I Järnberg
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - J Eintrei
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - F Maskovic
- Emergency Department, Karolinska University Hospital, Stockholm, Sweden
| | - A Kallner
- Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - M Holmström
- Coagulation Unit, Hematology Center Karolinska, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - J P Antovic
- Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
- Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
19
|
Molehin AJ, Sennoune SR, Zhang W, Rojo JU, Siddiqui AJ, Herrera KA, Johnson L, Sudduth J, May J, Siddiqui AA. Cross-species prophylactic efficacy of Sm-p80-based vaccine and intracellular localization of Sm-p80/Sm-p80 ortholog proteins during development in Schistosoma mansoni, Schistosoma japonicum, and Schistosoma haematobium. Parasitol Res 2017; 116:3175-3188. [PMID: 29026995 PMCID: PMC5660642 DOI: 10.1007/s00436-017-5634-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 09/25/2017] [Indexed: 10/18/2022]
Abstract
Schistosomiasis remains a major global health problem. Despite large-scale schistosomiasis control efforts, clear limitations such as possible emergence of drug resistance and reinfection rates highlight the need for an effective schistosomiasis vaccine. Schistosoma mansoni large subunit of calpain (Sm-p80)-based vaccine formulations have shown remarkable efficacy in protecting against S. mansoni challenge infections in mice and baboons. In this study, we evaluated the cross-species protective efficacy of Sm-p80 vaccine against S. japonicum and S. haematobium challenge infections in rodent models. We also elucidated the expression of Sm-p80 and Sm-p80 ortholog proteins in different developmental stages of S. mansoni, S. haematobium, and S. japonicum. Immunization with Sm-p80 vaccine reduced worm burden by 46.75% against S. japonicum challenge infection in mice. DNA prime/protein boost (1 + 1 dose administered on a single day) resulted in 26.95% reduction in worm burden in S. haematobium-hamster infection/challenge model. A balanced Th1 (IFN-γ, TNF-α, IL-2, and IL-12) and Th2 (IL-4, IgG1) type of responses were observed following vaccination in both S. japonicum and S. haematobium challenge trials and these are associated with the prophylactic efficacy of Sm-p80 vaccine. Immunohistochemistry demonstrated that Sm-p80/Sm-p80 ortholog proteins are expressed in different life cycle stages of the three major human species of schistosomes studied. The data presented in this study reinforce the potential of Sm-p80-based vaccine for both hepatic/intestinal and urogenital schistosomiasis occurring in different geographical areas of the world. Differential expression of Sm-p80/Sm-p80 protein orthologs in different life cycle makes this vaccine potentially useful in targeting different levels of infection, disease, and transmission.
Collapse
Affiliation(s)
- Adebayo J Molehin
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Souad R Sennoune
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Weidong Zhang
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Juan U Rojo
- College of Life Sciences and Agriculture, University of New Hampshire, Durham, NH, USA
| | - Arif J Siddiqui
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Karlie A Herrera
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Laura Johnson
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Justin Sudduth
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Jordan May
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Afzal A Siddiqui
- Center for Tropical Medicine and Infectious Diseases, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
- Department of Internal Medicine, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
| |
Collapse
|
20
|
Azad CS, Saxena M, Siddiqui AJ, Bhardwaj J, Puri SK, Dutta GP, Anand N, Saxena AK. Synthesis of primaquine glyco-conjugates as potential tissue schizontocidal antimalarial agents. Chem Biol Drug Des 2017; 90:254-261. [DOI: 10.1111/cbdd.12944] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 01/03/2017] [Accepted: 01/05/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Chandra S. Azad
- Division of Medicinal and Process Chemistry; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Mridula Saxena
- Department of Chemistry; Amity University (Lucknow Campus); Lucknow UP India
| | - Arif J. Siddiqui
- Division of Parasitology; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Jyoti Bhardwaj
- Division of Parasitology; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Sunil K. Puri
- Division of Parasitology; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Guru P. Dutta
- Division of Medicinal and Process Chemistry; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Nitya Anand
- Division of Medicinal and Process Chemistry; CSIR-Central Drug Research Institute; Lucknow UP India
| | - Anil K. Saxena
- Division of Medicinal and Process Chemistry; CSIR-Central Drug Research Institute; Lucknow UP India
| |
Collapse
|
21
|
Talpur AA, Shaikh AA, Arain MI, Siddiqui AJ. Experience with Extra Hepatic Intra Abdominal Hydatid Cyst. JNMA J Nepal Med Assoc 2015; 53:270-274. [PMID: 27746469] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
INTRODUCTION Hydatid disease is a significant health problem with their location at Extrahepatic Intra abdominal sites is a very rare disease. Disease in these sites usually found concurrently with liver hydatid disease. Diagnosis is based blood tests & imaging studies. Surgery is the mainstay of treatment. This study will help us in determining the frequency of Extra Hepatic Intra Abdominal Hydatid Disease. Also different methods to diagnose & treat the disease will be evaluated. METHODS It includes patients of extra hepatic intra abdominal Hydatid cyst above 13 years and underwent surgery from 2009 to 2014. Variables include age, sex, clinical findings, diagnostic investigations, operative findings, operative procedure, post operative complications. RESULTS Eleven patients; 07 male & 04 female; mean age 37.54 years. Most common symptoms were mass in abdomen in 11 patients & dull pain abdomen in 09 (81.8%) patients. Examination revealed non tender mass in epigastric & umbilical region in 04 (36.3%) patients. Ultrasound Abdomen showed hydatid cyst spleen in 02 (18.1%) patients, epigastrium in 04 (36.3%) patients, beneath left crus of diaphragm in 02 (18.1%) patients & right iliac fossa & pelvis in 1 (9.09%) patient. In 02 (18.1%) patients multiple Hydatid cysts were noted. Hydatid cysts liver found in 07 (63.6%) patients. C.T scan Abdomen was performed in 09 (81.8%) patients. Surgical procedures performed include Saucerization & omental packing in liver Hydatid cysts; Splenectomy for Splenic disease & complete excision of remaining intra-abdominal Hydatid cysts. Postoperative complications noted in 05 (45.4%) patients. CONCLUSION Extra hepatic intra abdominal is an infrequent disease presents significant diagnostic & therapeutic challenge for surgeons.
Collapse
Affiliation(s)
- A A Talpur
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
| | - A A Shaikh
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
| | - M I Arain
- Department of Surgery, Liaquat University Hospital Hyderabad/ Jamshoro, Sind, Pakistan
| | - A J Siddiqui
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
| |
Collapse
|
22
|
Siddiqui AJ, Bhardwaj J, Puri SK. mRNA expression of cytokines and its impact on outcomes after infection with lethal and nonlethal Plasmodium vinckei parasites. Parasitol Res 2011; 110:1517-24. [PMID: 21965043 DOI: 10.1007/s00436-011-2656-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Accepted: 09/12/2011] [Indexed: 12/27/2022]
Abstract
Cytokines play an important role in the defense against malaria and some have long been documented to influence the course of malaria infection in rodents and humans. The present study was conducted to determine the mRNA expression pattern of a few prominent cytokines at different time points during the course of infection with a nonlethal and lethal Plasmodium vinckei rodent malaria parasite, using highly sensitive real-time PCR. Analysis of mRNA expression of cytokines in spleen from infected mice revealed that the principal difference was an early depletion in pro-inflammatory cytokine's mRNA expression in mice infected with lethal P. vinckei (PvAS) parasites. In addition, an increase in anti-inflammatory cytokines particularly IL-10 mRNA expression levels was found in the same group of mice. In contrast, the significant rise in pro-inflammatory cytokine's mRNA expression levels was recorded at day 1 onwards after infection with nonlethal P. vinckei (PvAR). The maximum fold change was recorded for IFN-γ and IL-10, when compared to baseline value. TGF-β did not seem to play any major role in P. vinckei infection.
Collapse
Affiliation(s)
- Arif J Siddiqui
- Division of Parasitology, CSIR-Central Drug Research Institute, Lucknow 226001, India
| | | | | |
Collapse
|
23
|
Siddiqui AJ, Mansson-Broberg A, Gustafsson T, Grinnemo KH, Dellgren G, Hao X, Fischer H, Sylvén C. Antagonism of the renin-angiotensin system can counteract cardiac angiogenic vascular endothelial growth factor gene therapy and myocardial angiogenesis in the normal heart. Am J Hypertens 2005; 18:1347-52. [PMID: 16202860 DOI: 10.1016/j.amjhyper.2005.04.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Revised: 03/22/2005] [Accepted: 04/29/2005] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND The aim of this study was to test the hypothesis that angiotensin converting enzyme inhibition or angiotensin II antagonism can counteract cardiac human vascular endothelial growth factor-A165 (phVEGF-A165) induced angiogenesis. METHODS Mice were given a single intramyocardial injection of phVEGF-A165. Either enalapril or candesartan was given subcutaneously for 10 consecutive days. Hearts were harvested and capillary count was performed by immunohistochemistry. With similar design, groups of mice were sacrificed after 24 h for the determination of tissue expression of phVEGF-A protein, mRNA expression of mouse VEGF-A, and VEGF receptors 1 and 2, after pEGFP-Luc transfection for luciferase expression. RESULTS Increased myocardial capillary density (P < .02) induced by phVEGF-A165 was counteracted by both enalapril (P < .07) and candesartan (P < .02) and then did not differ from control values. We found that phVEGF-A165 induced myocardial hVEGF-A expression (110 +/- 15 pg/heart, P < .0001). Both enalapril and candesartan decreased (P < .01) expression of hVEGF-A to a level not different from control values. Although phVEGF-A165 upregulated (P < .0001) mVEGFR-2, addition of candesartan downregulated endogenous mVEGF-A (P < .0001) and mVEGFR-2 (P < .0001) below the level in normal myocardium. Enalapril or candesartan did not effect luciferase expression. CONCLUSIONS Enalapril and candesartan both specifically inhibit phVEGF-A165 induced myocardial angiogenesis in the normal heart. The mechanism of inhibition is a combination of inhibition of cardiac hVEGF-A expression and of decreased endogenous expression of the mVEGF ligand and receptor system.
Collapse
Affiliation(s)
- A J Siddiqui
- Department of Cardiology, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Siddiqui AJ, Gustafsson T, Fischer H, Widegren U, Hao X, Mansson-Broberg A, Grinnemo KH, Dellgren G, Sylvén C. Simvastatin enhances myocardial angiogenesis induced by vascular endothelial growth factor gene transfer. J Mol Cell Cardiol 2005; 37:1235-44. [PMID: 15572054 DOI: 10.1016/j.yjmcc.2004.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2004] [Revised: 10/07/2004] [Accepted: 10/08/2004] [Indexed: 11/17/2022]
Abstract
Statins have cardioprotective roles. We explored the cardiac angiogenic effects of simvastatin in combination with transient overexpression of vascular endothelial growth factor (VEGF). Compared with normal mice, 1-year-old ApoE(-/-) mice fed on a high-fat diet (HFD) had about 30% less myocardial capillary (P < 0.001) and arteriolar (P < 0.03) densities, associated with decreased VEGF (55%), VEGFR-1 (56%) and VEGFR-2 (78%) mRNA expressions and myocardial endothelial nitric oxide synthase (eNOS) production (58%). By contrast, angiopoietin-1 and angiopoietin-2 mRNA expressions were increased (500% P < 0.02, and 400% P < 0.01, respectively) in the ApoE(-/-) hearts. No change was observed in Tie-2 gene expression. Phosphorylation of antiapoptotic Akt was lower and proapoptotic p38 mitogen-activated protein kinase (MAPK) was higher in the ApoE(-/-) mice compared with controls. Intramyocardial VEGF gene transfer increased capillary and arteriolar densities in the ApoE(-/-) mice, and simvastatin treatment further enhanced capillary density (P < 0.03) to a level similar to that of normal mice. Simvastatin did not change the lipid profile but blocked p38 MAPK phosphorylation in the ApoE(-/-) myocardium. Concurrent with these changes, there were increased levels of expression of mVEGF (P < 0.04) and VEGFR-2 (P < 0.03) mRNAs and increased production of eNOS (P < 0.05) in the ApoE(-/-) mice, while no changes were detected in the angiopoietin system. Thus, increased myocardial angiogenesis in the ApoE(-/-) mice following transient overexpression of VEGF is further increased by additional simvastatin treatment. These effects occurred concurrently with simvastatin-induced stimulation of the VEGF system, increased eNOS production and reduction in p38 MAPK phosphorylation.
Collapse
Affiliation(s)
- A J Siddiqui
- Department of Cardiology, Clinical Research Center, Huddinge, Karolinska Institute, Karolinska University Hospital, 141 86 Stockholm, Sweden
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Hao X, Månsson-Broberg A, Gustafsson T, Grinnemo KH, Blomberg P, Siddiqui AJ, Wärdell E, Sylvén C. Angiogenic effects of dual gene transfer of bFGF and PDGF-BB after myocardial infarction. Biochem Biophys Res Commun 2004; 315:1058-63. [PMID: 14985120 DOI: 10.1016/j.bbrc.2004.01.165] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2003] [Indexed: 10/26/2022]
Abstract
Therapeutic effects of combination of angiogenic growth factors for the treatment of ischemia after myocardial infarction are largely unknown. Plasmids expressing basic fibroblast growth factor (bFGF), platelet-derived growth factor (PDGF-BB) or their combination with a 1:1 mass ratio were injected into hearts with 7-day-old myocardial infarction. Hearts were harvested after 1 and 4 weeks after gene transfer. The major findings in this chronic myocardial infarction model were that bFGF, PDGF-BB and their combination all had a more pronounced angiogenic effect on the arteriolar than the capillary level. bFGF stimulated both capillary and arteriolar growth while PDGF-BB preferentially stimulated arterioles. The combination increased the amount of both capillaries and arterioles and in addition gave rise to stable capillaries compared to single factor transfer but did not further enhance angiogenesis. No cardiovascular side effects were observed after gene transfer.
Collapse
Affiliation(s)
- X Hao
- Department of Cardiology, Karolinska Institutet, Huddinge University Hospital, Stockholm SE-141 86, Sweden
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Siddiqui AJ, Blomberg P, Wärdell E, Hellgren I, Eskandarpour M, Islam KB, Sylvén C. Combination of angiopoietin-1 and vascular endothelial growth factor gene therapy enhances arteriogenesis in the ischemic myocardium. Biochem Biophys Res Commun 2003; 310:1002-9. [PMID: 14550304 DOI: 10.1016/j.bbrc.2003.09.111] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [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: 11/20/2022]
Abstract
We hypothesised that angiopoietin-1 (Ang-1), in conjunction with vascular endothelial growth factor (VEGF) gene therapy, can enhance arteriogenesis and angiogenesis during myocardial ischemia. Mice were given a single intramyocardial injection of saline, phVEGF-A(165) and phAng-1 or a combination thereof into the non-ischemic normal heart or into the ischemic border zone of the infarcted heart. In the normal and the ischemic myocardium, gene transfer of phVEGF-A(165) alone increased the myocardial capillary density by 16% and 36%, respectively, and phAng-1 had a similar effect. In the normal heart, the ratio of arteriolar to capillary densities increased with phVEGF-A(165) and more so in the ischemic myocardium where phAng-1 also had an effect. Furthermore, the combination of plasmids induced an up to 7.5-fold increase. Transient overexpression of VEGF-A(165) boosts endogenous arteriogenesis in addition to capillary angiogenesis. Ang-1 further boosts this effect at the arteriolar level.
Collapse
Affiliation(s)
- A J Siddiqui
- Department of Cardiology, Karolinska Institute, Stockholm, Sweden.
| | | | | | | | | | | | | |
Collapse
|