1
|
Zubair M, Hussain A, Shahzad S, Arshad M, Ullah A. Emerging trends and challenges in polysaccharide derived materials for wound care applications: A review. Int J Biol Macromol 2024:132048. [PMID: 38704062 DOI: 10.1016/j.ijbiomac.2024.132048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 04/17/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Polysaccharides are favourable and promising biopolymers for wound care applications due to their abundant natural availability, low cost and excellent biocompatibility. They possess different functional groups, such as carboxylic, hydroxyl and amino, and can easily be modified to obtain the desirable properties and various forms. This review systematically analyses the recent progress in polysaccharides derived materials for wound care applications, emphasizing the most commonly used cellulose, chitosan, alginate, starch, dextran and hyaluronic acid derived materials. The distinctive attributes of each polysaccharide derived wound care material are discussed in detail, along with their different forms, i.e., films, membranes, sponges, nanoemulsions, nanofibers, scaffolds, nanocomposites and hydrogels. The processing methods to develop polysaccharides derived wound care materials are also summarized. In the end, challenges related to polysaccharides derived materials in wound care management are listed, and suggestions are given to expand their utilization in the future to compete with conventional wound healing materials.
Collapse
Affiliation(s)
- Muhammad Zubair
- Department of Agricultural, Food and Nutritional Science, Lab# 540, South Academic Building University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Ajaz Hussain
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Punjab, Pakistan
| | - Sohail Shahzad
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan
| | - Muhammad Arshad
- Clean Technologies and Applied Research, Northern Alberta Institute of Technology, Edmonton, Alberta T5G 2R1, Canada
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, Lab# 540, South Academic Building University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
| |
Collapse
|
2
|
Qureshi AK, Farooq U, Shakeel Q, Ali S, Ashiq S, Shahzad S, Tariq M, Seleiman MF, Jamal A, Saeed MF, Manachini B. The Green Synthesis of Silver Nanoparticles from Avena fatua Extract: Antifungal Activity against Fusarium oxysporum f.sp. lycopersici. Pathogens 2023; 12:1247. [PMID: 37887762 PMCID: PMC10609796 DOI: 10.3390/pathogens12101247] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023] Open
Abstract
Using plant extracts as eco-friendly reducing and stabilizing agents for the synthesis of nanoparticles has gained significant attention in recent years. The current study explores the green synthesis of silver nanoparticles (AgNPs) using the Avena fatua extract and evaluates their antifungal activity against Fusarium oxysporum f.sp. lycopersici (Fol), a fungal plant pathogen. A green and sustainable approach was adopted to synthesize silver nanoparticles before these nanoparticles were employed for anti-fungal activity. The primary indication that AgNPs had formed was performed using UV-vis spectroscopy, where a strong peak at 425 nm indicated the effective formation of these nanoparticles. The indication of important functional groups acting as reducing and stabilizing agents was conducted using the FTIR study. Additionally, morphological studies were executed via SEM and AFM, which assisted with more effectively analyzing AgNPs. Crystalline behavior and size were estimated using powder XRD, and it was found that AgNPs were highly crystalline, and their size ranged from 5 to 25 nm. Synthesized AgNPs exhibited significant antifungal activity against Fol at a concentration of 40 ppm. Furthermore, the inhibitory index confirmed a positive correlation between increasing AgNPs concentration and exposure duration. This study suggests that the combined phytochemical mycotoxic effect of the plant extract and the smaller size of synthesized AgNPs were responsible for the highest penetrating power to inhibit Fol growth. Moreover, this study highlights the potential of using plant extracts as reducing and capping agents for the green synthesis of AgNPs with antifungal properties. The study concludes that A. fatua extract can synthesize antifungal AgNPs as a sustainable approach with robust antifungal efficacy against Fol, underscoring their promising potential for integration into plant protection strategies.
Collapse
Affiliation(s)
- Ahmad Kaleem Qureshi
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan;
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (U.F.); (S.A.)
| | - Umar Farooq
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (U.F.); (S.A.)
| | - Qaiser Shakeel
- Cholistan Institute of Desert Studies, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Sajjad Ali
- Department of Entomology, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Sarfraz Ashiq
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (U.F.); (S.A.)
| | - Sohail Shahzad
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan;
| | - Muhammad Tariq
- Institute of Chemical Sciences, Bahauddin Zakariya University Multan, Multan 60800, Pakistan;
| | - Mahmoud F. Seleiman
- Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
| | - Aftab Jamal
- Department of Soil and Environmental Sciences, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar 25130, Pakistan;
| | - Muhammad Farhan Saeed
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari 61100, Pakistan;
| | - Barbara Manachini
- Department of Agricultural, Food and Forest Sciences, University of Palermo, 90128 Palermo, Italy
| |
Collapse
|
3
|
Nadeem K, Shahzad S, Hassan A, Usman Younus M, Asad Ali Gillani S, Farhan K. Municipal solid waste generation and its compositional assessment for efficient and sustainable infrastructure planning in an intermediate city of Pakistan. Environ Technol 2023; 44:3196-3214. [PMID: 35302920 DOI: 10.1080/09593330.2022.2054370] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 11/06/2021] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
It is imperative to design and operate sustainable solid waste management (SWM) systems in cities based on the results of waste amount and characterization study (WACS). In this work, WACS was conducted and results were used to design an SWM system for an intermediate city of Pakistan. The study revealed that about 110 tons of solid waste per day is generated with a per capita rate of 0.337 kg/day. Around 51.2% of mixed municipal solid waste (MSW) is organic in nature and its non-scientific disposal is resulting in higher greenhouse gas (GHG) emissions. It was also found that more than 80% of valuables are taken away by the informal sector during the transfer of MSW from the generation source to the dumping site. Ultimate analyses showed that the moisture content (MC) and carbon to nitrogen (C:N) ratio were 64.23% and 51.14%, respectively. Proximate analysis revealed that moisture and calorific values were 57 % and 3505 BTU/lb., respectively. Based on these results, a material sorting facility (MSF) was proposed, with an estimated investment cost of US $3.64 million. However, the efficiency of the existing collection system is limited to 32 % only. In order to improve the collection efficiency (>90 %), an additional investment of US $1.638 million was estimated with an operations and maintenance (O&M) cost of US $19.25 per ton. Existing non-scientific MSW disposal practices contribute 32,079.61 CO2e tons/year of GHG emissions. The proposed MSF followed by composting is estimated to reduce GHG emissions by 38% to 19,722.38 CO2e tons/year.
Collapse
Affiliation(s)
- K Nadeem
- Laboratoire de Génie Chimique, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - S Shahzad
- LMDC, INSA, UPS Génie Civil, Université de Toulouse, Toulouse Cedex, France
| | - A Hassan
- Chemical Engineering Department, MNS University of Engineering and Technology, Multan, Pakistan
| | - M Usman Younus
- Ecole Mathématiques, Informatique, Télécommunications de Toulouse, Université de Toulouse, Toulouse, France
- Department of Computer Science & IT, University of Jhang, Pakistan
| | - S Asad Ali Gillani
- Civil Engineering Department, University of Engineering and Technology, Lahore, Pakistan
| | - K Farhan
- The Urban Unit, Planning & Development Department, Government of the Punjab, Lahore, Pakistan
| |
Collapse
|
4
|
Shahzad S, Khan UN, Ahmed N, Arshed A, Shahzad MA, Shaikh AQ. Role of Paracetamol and oral Ibuprofen as Antipyretics in Children with Fever. PAFMJ 2023. [DOI: 10.51253/pafmj.v73i1.10011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Objective: To compare the clinical effectiveness of Paracetamol with Ibuprofen as an antipyretic, fever relief and linked discomfort in children.
Study Design: Comparative cross-sectional study.
Place and Duration of Study: Combined Military Hospital, Abbottabad Pakistan from Apr to Nov 2019.
Methodology: Children aged six months to five years, who reported fever between 38-41°C were included. Two temperature groups were developed, i.e., 37.8–38.9ºC and 39–41ºC with baseline temperatures of 38.60±0.56 for Paracetamol-Group and 38.58± 0.56ºC for Ibuprofen-Group. The prescriptions were given over to the parents with clarification about the dose of the medication. The medication had active and placebo forms. Information was gathered until saturation was done.
Results: A total of 104 children were taken in the study. Of these, 77(74.08%) were females, and 27(24.96) were males. Comparing Ibuprofen-treated children with Paracetamol-Group, the final result showed that the extent of children's temperature management was greater in the Ibuprofen-Group 37(71%) than in the Paracetamol-Group 34(65%).
Conclusion: Doctors, attendants and guardians wishing to use medications to treat children suffering from fever should be encouraged to use Ibuprofen first and to consider the relative risks and advantages of using Ibuprofen in addition to Paracetamol for fever. Comparatively, Ibuprofen is more effective than Paracetamol.
Collapse
|
5
|
Ghramh HA, Sadiq N, Naqqash MN, Abid AD, Shahzad S, Saeed S, Iqbal N, Khan KA. Transgenerational effects of lambda-cyhalothrin on Musca domestica L. (Diptera: Muscidae). Sci Rep 2022; 12:19228. [PMID: 36357409 PMCID: PMC9649667 DOI: 10.1038/s41598-022-23492-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 04/27/2022] [Accepted: 11/01/2022] [Indexed: 11/11/2022] Open
Abstract
The hormetic effect may cause disease control measures to fail due to inadequate treatment of human disease vectors such as houseflies. Age-stage, two-sex life table is used for accurate estimation of the hermetic impacts on insects as it allows to study sub-lethal or transgenerational effects. Pyrethroids insecticides are primarily used for the management of houseflies. This study used lambda-cyhalothrin (a pyrethroid insecticide) to quantify its transgenerational impacts on houseflies. Life table parameters of a progeny of adult houseflies exposed to LC10, LC30, and LC50 of lambda-cyhalothrin were computed. Statistically higher fecundity (71.31 per female) was observed in control treatment, while it was the adults exposed to LC50 recorded the lowest progeny. Significantly higher values for intrinsic rate of growth (r), limiting rate of growth (λ), and net reproductive rate (Ro) (0.16, 1.16, and 31.38 per day, respectively) were recorded for the control treatment of the study. Contrarily, lower values for λ, Ro, and r were (0.10, 1.10, and 9.24 per day, respectively) were noted in the LC50 treatment. Decreased population parameters suggest that lambda-cyhalothrin can be successfully used in indoor environments to control houseflies.
Collapse
Affiliation(s)
- Hamed A. Ghramh
- grid.412144.60000 0004 1790 7100Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Unit of Bee Research and Honey Production, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Biology Department, Faculty of Science, King Khalid University, P. O. Box 9004, 61413 Abha, Saudi Arabia
| | - Nauman Sadiq
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Muhammad Nadir Naqqash
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Allah Ditta Abid
- Department of Plant Protection, Ministry of National Food Security and Research, Islamabad, Pakistan
| | - Sohail Shahzad
- Department of Plant Protection, Ministry of National Food Security and Research, Islamabad, Pakistan
| | - Shafqat Saeed
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Naeem Iqbal
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Khalid Ali Khan
- grid.412144.60000 0004 1790 7100Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Unit of Bee Research and Honey Production, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Applied College, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia
| |
Collapse
|
6
|
Zubair M, Shahzad S, Hussain A, Pradhan RA, Arshad M, Ullah A. Current Trends in the Utilization of Essential Oils for Polysaccharide- and Protein-Derived Food Packaging Materials. Polymers (Basel) 2022; 14:polym14061146. [PMID: 35335477 PMCID: PMC8950623 DOI: 10.3390/polym14061146] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 12/04/2022] Open
Abstract
Essential oils (EOs) have received attention in the food industry for developing biopolymer-derived food packaging materials. EOs are an excellent choice to replace petroleum-derived additives in food packaging materials due to their abundance in nature, eco-friendliness, and superior antimicrobial and antioxidant attributes. Thus far, EOs have been used in cellulose-, starch-, chitosan-, and protein-based food packaging materials. Biopolymer-based materials have lower antioxidant and antibacterial properties in comparison with their counterparts, and are not suitable for food packaging applications. Various synthetic-based compounds are being used to improve the antimicrobial and antioxidant properties of biopolymers. However, natural essential oils are sustainable and non-harmful alternatives to synthetic antimicrobial and antioxidant agents for use in biopolymer-derived food packaging materials. The incorporation of EOs into the polymeric matrix affects their physicochemical properties, particularly improving their antimicrobial and antioxidant properties. EOs in the food packaging materials increase the shelf life of the packaged food, inhibit the growth of microorganisms, and provide protection against oxidation. Essential oils also influence other properties, such as tensile, barrier, and optical properties of the biopolymers. This review article gives a detailed overview of the use of EOs in biopolymer-derived food packaging materials. The innovative ways of incorporating of EOs into food packaging materials are also highlighted, and future perspectives are discussed.
Collapse
Affiliation(s)
- Muhammad Zubair
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Lab# 540, South Academic Building, Edmonton, AB T6G 2P5, Canada; (M.Z.); (M.A.)
| | - Sohail Shahzad
- Department of Chemistry, University of Sahiwal, Sahiwal 57000, Pakistan;
| | - Ajaz Hussain
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60000, Pakistan;
| | - Rehan Ali Pradhan
- Biopolymer Innovation Head, Yash Pakka Limited, Ayodhya 224135, UP, India;
| | - Muhammad Arshad
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Lab# 540, South Academic Building, Edmonton, AB T6G 2P5, Canada; (M.Z.); (M.A.)
| | - Aman Ullah
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Lab# 540, South Academic Building, Edmonton, AB T6G 2P5, Canada; (M.Z.); (M.A.)
- Correspondence:
| |
Collapse
|
7
|
Zahid M, Zaman S, Shahzad S, Shah SA, Javed S, Khan AM. MATERNAL C-REACTIVE PROTEIN IN PREGNANCY AND ITS RELATION WITH EARLY ONSET NEONATAL SEPSIS. PAFMJ 2021. [DOI: 10.51253/pafmj.v71i4.3537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Objective:To determine association of early-onset neonatal sepsis (EONS) in newborns of serum C-reactive protein positive mothers.
Study Design: Cross sectional study
Place and duration of study: Department of Pediatrics, Combined Military Hospital Quetta, Pakistan from September 2016 to March 2018.
Material and Methods: 105 neonates (both gender) of all mothers who were C - reactive protein positive were enrolled in this study using inclusion and exclusion criteria.Neonatal sepsis was diagnosed by clinical examination, which was carried out by senior pediatrician, blood complete picture and c reactive protein. Neonates were treated as per departmental protocol. Stratification was done in regard to gestational age, birth weight and age of neonates in hours. Post stratification chi square test was applied and p-value less than 0.05 was considered significant.
Results:Out of total 105 patients, 46 (44%) were male and 59 (56%)were female neonates. Amongst the babies of 105 CRP positive mothers, 79 babies were having signs and symptoms of neonatal sepsis and 26 babies were having no signs and symptoms of neonatal sepsis with statistically significant relation between maternal CRP and neonatal sepsis of p value <0.05.
Conclusion:Increased maternal CRP level is associated with increased risk of neonatal sepsis. Maternal CRP may be used as a good screening tool for early detection of neonatal sepsis.
Collapse
|
8
|
Abid AD, Saeed S, Zaka SM, Shahzad S, Ali M, Iqbal M, Iqbal N, Jamal ZA. Field evaluation of nucleopolyhedrosis virus and some biorational insecticides against Helicoverpa armigera Hubner (Noctuidae: Lepidoptera). Saudi J Biol Sci 2020; 27:2106-2110. [PMID: 32714035 PMCID: PMC7376122 DOI: 10.1016/j.sjbs.2020.06.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/18/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 11/25/2022] Open
Abstract
American bolloworm, Helicoverpa armigera Hubner (Noctuidae: Lepidoptera) is considered as a major pest of various crops all over the world. It is mainly controlled by indiscriminate use of synthetic insecticides in the world due to which this pest developed resistance to most of the available insecticides. Therefore, in the current study, the efficacy of virulent strain of HaNPV (0.5 × 109 PIB/ml) alone and in combination with recommended doses of spintoram (20 g/100 L of water) and emamectin benzoate (200 ml/100 L of water) was tested in field. The combination of HaNPV with spintoram and emamectin benzoate 100% reduced the larval population as compared to emamectin benzoate and HaNPV alone. This suggested that the combination of spintoram and emamectin benzoate with HaNPV could be used in field to manage the infestation of H. armigera.
Collapse
Affiliation(s)
- Allah Ditta Abid
- Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan 60800, Pakistan.,Department of Plant Protection, Karachi Ministry of National Food Security, Pakistan
| | - Shafqat Saeed
- Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan 60800, Pakistan.,Institute of Plant Protection, MNS-University of Agriculture, Multan 60000, Pakistan
| | - Syed Muhammad Zaka
- Department of Entomology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Sohail Shahzad
- Department of Plant Protection, Karachi Ministry of National Food Security, Pakistan
| | - Muhammad Ali
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan.,Qauid-i-Azam University, Islamabad, Pakistan
| | | | - Naeem Iqbal
- Institute of Plant Protection, MNS-University of Agriculture, Multan 60000, Pakistan
| | - Zakia A Jamal
- Biology Department, Faculty of Science, Taibah University, Al-Sharm, Yanbu El-Bahr 46429, Saudi Arabia
| |
Collapse
|
9
|
Zahid A, Shahzad S, Ganaie M. OPTIMISING PRE-IMAGING DIAGNOSIS OF PULMONARY EMBOLISM: A COMPARISON OF YEARS ALGORITHM WITH ORIGINAL AND SIMPLIFIED WELL’S SCORES. Chest 2020. [DOI: 10.1016/j.chest.2020.05.444] [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: 10/24/2022] Open
|
10
|
Khan S, Ansar M, Khan AK, Shah K, Muhammad N, Shahzad S, Nickerson DA, Bamshad MJ, Santos-Cortez RLP, Leal SM, Ahmad W. A homozygous missense mutation in SLC25A16 associated with autosomal recessive isolated fingernail dysplasia in a Pakistani family. Br J Dermatol 2017; 178:556-558. [PMID: 28504827 DOI: 10.1111/bjd.15661] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan.,Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - M Ansar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - A K Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - K Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - N Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - S Shahzad
- Department of Biotechnology & Bioinformatics, International Islamic University, Islamabad, Pakistan
| | - D A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A
| | - M J Bamshad
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A.,Department of Pediatrics, University of Washington, Seattle, WA, U.S.A
| | - R L P Santos-Cortez
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A.,Department of Otolaryngology, University of Colorado School of Medicine, Aurora, CO, U.S.A
| | - S M Leal
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| |
Collapse
|
11
|
Yar M, Shahzad S, Shahzadi L, Shahzad SA, Mahmood N, Chaudhry AA, Rehman IU, MacNeil S. Heparin binding chitosan derivatives for production of pro-angiogenic hydrogels for promoting tissue healing. Mater Sci Eng C Mater Biol Appl 2016; 74:347-356. [PMID: 28254303 DOI: 10.1016/j.msec.2016.12.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 07/29/2016] [Revised: 11/10/2016] [Accepted: 12/05/2016] [Indexed: 12/22/2022]
Abstract
Our aim was to develop a biocompatible hydrogel that could be soaked in heparin and placed on wound beds to improve the vasculature of poorly vascularized wound beds. In the current study, a methodology was developed for the synthesis of a new chitosan derivative (CSD-1). Hydrogels were synthesized by blending CSD-1 for either 4 or 24h with polyvinyl alcohol (PVA). The physical/chemical interactions and the presence of specific functional groups were confirmed by Fourier transform infrared (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H NMR). The porous nature of the hydrogels was confirmed by scanning electron microscopy (SEM). Thermal gravimetric analysis (TGA) showed that these hydrogels have good thermal stability which was slightly increased as the blending time was increased. Hydrogels produced with 24h of blending supported cell attachment more and could be loaded with heparin to induce new blood vessel formation in a chick chorionic allantoic membrane assay.
Collapse
Affiliation(s)
- Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Sohail Shahzad
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Sohail Anjum Shahzad
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Nasir Mahmood
- Department of Allied Health Sciences and Chemical Pathology, University of Health Sciences, Lahore, Pakistan; Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK
| | - Sheila MacNeil
- Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK.
| |
Collapse
|
12
|
Shahzad S, Shahzadi L, Mahmood N, Siddiqi SA, Rauf A, Manzoor F, Chaudhry AA, Rehman IU, Yar M. A new synthetic methodology for the preparation of biocompatible and organo-soluble barbituric- and thiobarbituric acid based chitosan derivatives for biomedical applications. Materials Science and Engineering: C 2016; 66:156-163. [DOI: 10.1016/j.msec.2016.04.056] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/06/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
|
13
|
Shah K, Nasir A, Irfanullah, Shahzad S, Khan S, Ahmad W. A novel homozygous mutation disrupting the initiation codon in the SLURP1 gene underlies mal de Meleda in a consanguineous family. Clin Exp Dermatol 2016; 41:675-679. [PMID: 29226984 DOI: 10.1111/ced.12864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 01/23/2023]
Abstract
Mal de Meleda (MDM) is a palmoplantar keratoderma (PPK), characterized by hyperkeratosis of the palms and soles, and keratotic skin lesions. Patients with MDM can develop perioral erythema, keratotic and lichenoid plaques over the joints (including the elbows and knees), nail abnormalities, joint contractures and stiffness, brachydactyly, sclerodactyly, pseudoainhum, and malodorous maceration. MDM is associated with mutations in the SLURP1 gene. We report a consanguineous family in which MDM was inherited in an autosomal recessive manner. Genotyping using microsatellite markers established linkage in the family to the SLURP1 gene, which has been mapped previously to chromosome 8q24.3. Sequence analysis revealed a homozygous missense mutation (c.2T>C, p.Met1Thr) in affected family members. Molecular docking studies using a ZDOCK server predicted disruption of binding of the mutant variant to its target α7-nAChR. This study further supports the previously reported findings that homozygous mutations in the SLURP1 gene cause MDM.
Collapse
Affiliation(s)
- K Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - A Nasir
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Irfanullah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - S Shahzad
- Department of Biotechnology, International Islamic University, Islamabad, Pakistan
| | - S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology (KUST), Kohat, 26000, Pakistan
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| |
Collapse
|
14
|
Sarwar R, Mansoor Q, Farooqi AA, Shahzad S, Fayyaz S, Ismail M. Genetic variants in the tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL) do not contribute but Death Receptor (DR4) genes may contribute to susceptibility to head and neck cancer in Pakistani population. Cell Mol Biol (Noisy-le-grand) 2015; 61:53-56. [PMID: 26718429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 12/15/2015] [Indexed: 06/05/2023]
Abstract
TRAIL mediated signaling in cancer cells has emerged as one amongst the most deeply studied molecular phenomenon. Recent breakthroughs have shown that overexpression of anti-apoptotic proteins, inactivation of pro-apoptotic proteins, transcriptional downregulation of TRAIL, DR4/DR5, degradation of DR/DR5 are some of the mechanisms which dramatically abrogate TRAIL induced apoptosis in cancer cells. Data obtained through genetic studies has highlighted highly polymorphic nature of DR4 and in accordance with this concept, we investigated the association between Head and Neck Cancer and polymorphisms in TRAIL (1595 C/T) and DR4 (C626G and A1322G) gene. We selected 100 patients with Head and Neck Cancer and 100 healthy, sex and age matched volunteers randomly. C626G and A1322G in DR4 gene were analyzed using Polymerase Change Reaction (PCR) - Restriction Fragment Length Polymorphism (RFLP) and Amplification Refractory Mutation System (ARMS) techniques respectively. For TRAIL gene 1595 C>T genotypes, there was no statistically significant role of homozygous CC or TT in Head and Neck cancer. CC was 58% in patients and 49% in controls. CT was 30% in patients and 43% in controls. TT was 12% in patients and 8% in controls. Allele frequency for C was noted to be 0.73 (patients) and 0.705 (controls), p-value (1). For T, 0.025 (patients) and 0.001(controls), p-value (0.88). The genotyping for DR4 gene 626 C>G polymorphism was done for 100 head and neck cancer patients and 100 age and sex matched healthy controls. All the genotypes for the polymorphism were in Hardy-Weinberg Equilibrium. For DR4626 C>G genotype, CC was 10% in patients and 2% in controls. GC was 63% in patients and 40% in controls. GG was 27% in patients and 58% in controls. Interestingly, in DR4 genotyping, CC was predisposing factor and GG acted as a protective factor. Allele frequency for C was noted to be 0.41 (patients) and 0.22 (controls), p-value (0.81). For G, 0.585 (patients) and 0.78 (controls), p-value (0.867). For the A1322G polymorphism, TT was 23% in patients and 36% in controls with a p-value 0.09 (table 6). CT was statistically significant in patients (45%) and controls (28%), p-value 0.04. CC was non-significant in patients (32%) and controls (36%), p-value 0.62 (table 6). C allele was 0.45% in patients and 0.5% in controls. T allele was 0.54% in patients and 0.5% in controls. Future studies must converge on somatic mutations, epigenetic mutations and expression analysis of TRAIL and DR4 to get a step closer to individualized medicine.
Collapse
Affiliation(s)
- R Sarwar
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - Q Mansoor
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - A A Farooqi
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| | - S Shahzad
- International Islamic University Department of Bioinformatics and Biotechnology Islamabad Pakistan
| | - S Fayyaz
- Rashid Latif Medical College Laboratory for Translational Oncology and Personalized Medicine Lahore Pakistan
| | - M Ismail
- Institute of Biomedical and Genetic Engineering (IBGE) Islamabad Pakistan
| |
Collapse
|
15
|
Yar M, Shahzad S, Siddiqi SA, Mahmood N, Rauf A, Anwar MS, Chaudhry AA, Rehman IU. Triethyl orthoformate mediated a novel crosslinking method for the preparation of hydrogels for tissue engineering applications: characterization and in vitro cytocompatibility analysis. Mater Sci Eng C Mater Biol Appl 2015; 56:154-64. [PMID: 26249576 DOI: 10.1016/j.msec.2015.06.021] [Citation(s) in RCA: 33] [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] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/04/2015] [Accepted: 06/09/2015] [Indexed: 10/23/2022]
Abstract
This paper describes the development of a new crosslinking method for the synthesis of novel hydrogel films from chitosan and PVA for potential use in various biomedical applications. These hydrogel membranes were synthesized by blending different ratios of chitosan (CS) and poly(vinyl alcohol) (PVA) solutions and were crosslinked with 2.5% (w/v) triethyl orthoformate (TEOF) in the presence of 17% (w/v) sulfuric acid. The physical/chemical interactions and the presence of specific functional groups in the synthesized materials were evaluated by Fourier transform infrared (FT-IR) spectroscopy. The morphology, structure and pore size of the materials were investigated by scanning electron microscopy (SEM). Thermal gravimetric analysis (TGA) proved that these crosslinked hydrogel films have good thermal stability which was decreased as the CS ratio was increased. Differential scanning calorimetry (DSC) exhibited that CS and PVA were present in the amorphous form. The solution absorption properties were performed in phosphate buffer saline (PBS) solution of pH7.4. The 20% PVA-80% CS crosslinked hydrogel films showed a greater degree of solution absorption (183%) as compared to other compositions. The hydrogels with greater CS concentration (60% and 80%) demonstrated relatively more porous structure, better cell viability and proliferation and also revealed good blood clotting ability even after crosslinking. Based on the observed facts these hydrogels can be tailored for their potential utilization in wound healing and skin tissue engineering applications.
Collapse
Affiliation(s)
- Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Sohail Shahzad
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Saadat Anwar Siddiqi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Nasir Mahmood
- Department of Allied Health Sciences and Chemical Pathology, Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Abdul Rauf
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Sabieh Anwar
- Department of Physics, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS), Opposite Sector U, D.H.A., Lahore 54792, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Ihtesham ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Materials Science and Engineering, The Kroto Research Institute, The University of Sheffield, North Campus, Broad Lane, Sheffield S3 7HQ, United Kingdom
| |
Collapse
|
16
|
de Cock A, Lodhi A, Rintoul T, Bala K, Robideau G, Abad ZG, Coffey M, Shahzad S, Lévesque C. Phytopythium: molecular phylogeny and systematics. Persoonia 2015; 34:25-39. [PMID: 26240443 PMCID: PMC4510269 DOI: 10.3767/003158515x685382] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [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: 01/28/2014] [Accepted: 09/27/2014] [Indexed: 11/25/2022]
Abstract
The genus Phytopythium (Peronosporales) has been described, but a complete circumscription has not yet been presented. In the present paper we provide molecular-based evidence that members of Pythium clade K as described by Lévesque & de Cock (2004) belong to Phytopythium. Maximum likelihood and Bayesian phylogenetic analysis of the nuclear ribosomal DNA (LSU and SSU) and mitochondrial DNA cytochrome oxidase subunit 1 (COI) as well as statistical analyses of pairwise distances strongly support the status of Phytopythium as a separate phylogenetic entity. Phytopythium is morphologically intermediate between the genera Phytophthora and Pythium. It is unique in having papillate, internally proliferating sporangia and cylindrical or lobate antheridia. The formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense.
Collapse
Affiliation(s)
- A.W.A.M. de Cock
- CBS-KNAW Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - A.M. Lodhi
- Department of Plant Pathology, Sindh Agriculture University, Tandojam, Pakistan
| | - T.L. Rintoul
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - K. Bala
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - G.P. Robideau
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| | - Z. Gloria Abad
- USDA-APHIS-PPQ-Center of Plant Health Science and Technology, Bldg 580, BARC-e, Powder Mill Road, Beltsville, MD 20705, USA
| | - M.D. Coffey
- Department of Plant Pathology and Microbiology, University of California, Riverside, CA 92521, USA
| | - S. Shahzad
- Department of Agriculture, University of Karachi, Karachi, Pakistan
| | - C.A. Lévesque
- Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
| |
Collapse
|
17
|
Shahzad S, Yar M, Siddiqi SA, Mahmood N, Rauf A, Qureshi ZUA, Anwar MS, Afzaal S. Chitosan-based electrospun nanofibrous mats, hydrogels and cast films: novel anti-bacterial wound dressing matrices. J Mater Sci Mater Med 2015; 26:136. [PMID: 25716023 DOI: 10.1007/s10856-015-5462-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 01/09/2015] [Indexed: 06/04/2023]
Abstract
The development of highly efficient anti-bacterial wound dressings was carried out. For this purpose nanofibrous mats, hydrogels and films were synthesized from chitosan, poly(vinyl alcohol) and hydroxyapatite. The physical/chemical interactions of the synthesized materials were evaluated by FTIR. The morphology, structure; average diameter and pore size of the materials were investigated by scanning electron microscopy. The hydrogels showed a greater degree of swelling as compared to nanofibrous mats and films in phosphate buffer saline solution of pH 7.4. The in vitro drug release studies showed a burst release during the initial period of 4 h and then a sustained release profile was observed in the next upcoming 20 h. The lyophilized hydrogels showed a more slow release as compared to nanofibrous mats and films. Antibacterial potential of drug released solutions collected after 24 h of time interval was determined and all composite matrices showed good to moderate activity against Gram-positive and Gram-negative bacterial strains respectively. To determine the cytotoxicity, cell culture was performed for various cefixime loaded substrates by using neutral red dye uptake assay and all the matrices were found to be non-toxic.
Collapse
Affiliation(s)
- Sohail Shahzad
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Yar M, Bajda M, Shahzad S, Ullah N, Gilani MA, Ashraf M, Rauf A, Shaukat A. Organocatalyzed solvent free an efficient novel synthesis of 2,4,5-trisubstituted imidazoles for α-glucosidase inhibition to treat diabetes. Bioorg Chem 2014; 58:65-71. [PMID: 25462626 DOI: 10.1016/j.bioorg.2014.11.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 11/14/2014] [Accepted: 11/16/2014] [Indexed: 12/22/2022]
Abstract
A new and efficient solvent free synthesis of 2,4,5-trisubstituted imidazoles (3a-3j) was achieved by N-acetyl glycine (NAG) catalyzed three components condensation of aldehydes, benzil and ammonium acetate. Our synthetic methodology accommodated a range of various substituted alkyl and aryl aldehydes. Evaluation of α-glucosidase inhibitory activity of these imidazole derivatives revealed that most of them presented good α-glucosidase inhibition at low micro-molar concentrations. Among the synthesized compounds, compound 3c, bearing the ortho-hydroxy phenyl substituent at position 2 displayed the highest inhibitory activity with an IC50 value 74.32±0.59 μM. In silico molecular docking for all compounds and computational studies of the most active compound 3c were also performed.
Collapse
Affiliation(s)
- Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Marek Bajda
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland
| | - Sohail Shahzad
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Nisar Ullah
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Mazhar Amjad Gilani
- Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Muhammad Ashraf
- Department of Biochemistry & Biotechnology, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Abdul Rauf
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Ayesha Shaukat
- Department of Biochemistry & Biotechnology, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| |
Collapse
|
19
|
|
20
|
Voelter W, Anwar A, Ali M, Perveen S, Rani M, Shahzad S, Khan K. Synthesis of 5-Substituted-1,3,4-Oxadiazole-2(3H)-Thiones Under Microwave Irradiation. LETT ORG CHEM 2006. [DOI: 10.2174/157017806776114522] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|