73 results on '"Qadir R"'
Search Results
2. Synthesis and evaluation of 2-phenylamino-1,4-naphthoquinones derivatives as potential hypoglycaemic agents/ Sintese e avaliacao de derivados de 2-fenilamino-1,4-naftoquinonas como potenciais agentes hipoglicemiantes
- Author
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Razaque, R., Raza, A.R., Irshad, M., Rubab, S.L., Batool, S., Nisar, B., Akram, Z., Akhtar, M.T., Qadir, R., Siddique, Abu Bakar, Siddique, Farzana, and Saadia, M.
- Published
- 2024
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3. Novel green sorbent Aerva Javanicafor dyes remediation from aqueous media and future prediction through QSPR modeling
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Gondal, H. Y., Batool, F., Iqbal, S., Akbar, J., Noreen, S., Mustaqeem, M., ur Rehman, M. F., Imtiaz, M., and Qadir, R.
- Abstract
Pollutant removal from different sources, especially water pollutants, is a major concern in today's world. Various methodologies were being utilized to purify water resources because water scarcity is a major problem of the twenty-first century. In the current study, we searched and discovered novel green, renewable, cost-effective, environmentally benign, and readily available adsorbent Aerva Javanica(A. Javanica),for remediation of selected fourteen (14) dyes from aqueous media. A quantitative structure–property relationship model was developed to relate the structural properties of dyes with the percentage adsorption based on data and information which was collected by the adsorption study of these selected dyes. The structures of these dyes were optimized using MOPAC2016 and DRAGON software and further used for descriptors calculation. Initially, 1666 descriptors were calculated. The heuristic method was employed to select significant descriptors, and after pre-reducing steps, we left with 36 descriptors. Stepwise multiple linear regression (SMLR) analysis followed by artificial neural network (ANN) was employed on these descriptors for model generation. The SMLR-ANN model has shown better predictive ability (R2= 0.9907) than only the SMLR model (R2= 0.9778). Validation of the model was performed by internal validation by measuring cross-validation squared correlation coefficient (Q2= 0.921) and external validation (predictive R2= 0.9211). Significant descriptors calculated for modeling include Mor10e, HATS5p, nHAcc, E3m, and GATS5v. All these descriptors are built on basic molecular properties like molecular structure, electronegativity, and polarity. So the model is significant in this regard as it relates basic molecular properties with their adsorption potential. Generated models have shown good robustness, stability, and predictive ability.
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- 2024
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4. 1158 Outcome of Hot Laparoscopic Cholecystectomy Service Evaluation in Morriston Hospital, SBUHB
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Qadir, R M A B, primary, Gwilym, B L, additional, Yuksek, A, additional, Robine-Durnell, L, additional, Shingler, G, additional, and Mortimer, M, additional
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- 2023
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5. ELUCIDATION AND COMPARATIVE ASSESSMENT OF THE PHYTOCHEMICAL CONTENT AND ANTIBACTERIAL ACTIVITY OF PARTHENIUM HYSTEROPHORUS EXTRACT IN DIFFERENT SOLVENTS.
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ABBAS, M., KHAN, A. A., KHAN, T., QADIR, R., AZIZ, T., ALHARBI, M., ALSAHAMMARI, A., and ALASMARI, A. F.
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PARTHENIUM hysterophorus ,ANTIBACTERIAL agents ,FLAVONOIDS ,EXTRACTS ,FREE radicals - Abstract
The current study presents a comparative assessment of the phytochemical contents and antibacterial activity of Parthenium hysterophorus in different solvents of varying polarities (n-hexane, acetone, and water). Extraction was carried out using orbital shaker and extracts were tested against selected bacterial strains by applying disc diffusion process. The antioxidant potential of the Parthenium weeds extract was measured in terms of total phenolic contents (TPC), total flavonoid contents (TFC) and diphenyl picrylhydrazyl (DPPH) free radical scavenging activity. The results revealed that aqueous extracts had higher TPC values (151 µg GAE/g) relative to acetone (127 µg GAE/g) and n-hexane (118 µg GAE/g) extracts. Whereas in the case of TFC, the acetone extract exhibited higher values (31 µg QE/g) followed by n-Hexane (26 µg QE/g) and aqueous extract (5 µg QE/g). DPPH scavenging activity was higher in the case of n-Hexane extract followed by acetone and aqueous extracts. The antibacterial potential of the extracts prepared using three different solvents demonstrated that these extracts are capable of resisting bacterial activity and hence cease their function. The most prominent inhibition zones appeared in the case of nhexane extract, whereas the aqueous extract had the lowest potential to inhibit the bacterial function. The results obtained in this current study support that Parthenium weed extracts have significant antioxidant and antibacterial functions and hence can be used as an ingredient in pharmaceuticals. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Hazard and risk intensity maps for water-bearing units: a case study
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Hamamin, D. F., Qadir, R. A., Ali, S. S., and Bosch, A. P.
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- 2017
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7. Cytological evaluation of cervical lymphadenopathy in a tertiary care centre, Govt. Medical College Kathua: Two year study
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Raina A, Rana VM, Qadir R, and Atri SK
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General Engineering - Published
- 2021
8. Cluster analysis in carrot genotypes under temperate conditions of Kashmir
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Hussain, K., Ahmed, N., and Qadir, R.
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- 2008
9. Seed protein electrophoresis for varietal identification of rice
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Qadir, R., Wani, S.A., Habib, M., Hussain, K., Mohd, A., and Dar, Z.A.
- Published
- 2007
10. Characterization and antioxidant potential of white mustard (Brassica hirta) leaf extract and stabilization of sunflower oil
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Riaz Muhammad, Nawaz Maria, Qadir Rahman, Hussain Shabbir, Roheen Taleeha, Afzal Muhammad, Perviaz Muhammad, Ali Akbar, Aziz Tariq, Alharbi Metab, Albekairi Thamer H., and Alasmari Abdullah F.
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phytochemistry ,peroxide ,phenolics ,fee fatty acid ,dpph ,Chemistry ,QD1-999 - Abstract
The current study aimed to analyze the stabilization of sunflower oil using white mustard (Brassica hirta) leaf extracts as well as their antioxidant potential and cytotoxicity. Selected plant leaves were macerated in different solvents such as n-hexane, chloroform, ethyl acetate, n-butanol, and methanol. The total flavonoid contents, total phenolic contents, the antioxidant activity by DPPH assay, and the inhibition of linoleic acid oxidation were also examined. Moreover, the stabilization of sunflower oil was evaluated by calculating the conjugated dienes, conjugated trienes, peroxide value, p-ansidine, and free fatty acid values. The cytotoxicity study in terms of the hemolytic activity of B. hirta leaf extract was evaluated and the maximum percentage of lysis was found to be safe (less than 5%). The results of the present study revealed that among others, methanolic white mustard (B. hirta) leaf extract possessed higher antioxidant potential and might be safely employed for the stabilization of vegetable oils.
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- 2023
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11. Characterization of phenolics and biological activities of different solvent extracts from Withania somnifera fruit.
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Tabassam, Q., Mehmood, T., Anwar, F., Saari, N., and Qadir, R.
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PLANT phenols ,WITHANIA somnifera ,PHENOLS ,AGROBACTERIUM tumefaciens ,ANTIFUNGAL agents ,KLEBSIELLA pneumoniae ,GALLIC acid - Abstract
The present work studies the profiling of phenolic bioactive and in vitro biological (anticancer, antioxidant, and antimicrobial) activities of different solvent extracts from Withania somnifera fruit. Anticancer activity was performed using potato-disc assay and Agrobacterium tumefaciens. While antibacterial and antifungal evaluation was done by using disc diffusion method against bacterial (Staphylococcus aureus, S. epidermidis, Escherichia coli, and Klebsiella pneumonia) and fungal (Aspergillus flavus and Fusarium oxysporum) strains. Among different extraction solvents used, n-hexane extract exhibited the highest inhibition of tumour initiation (64%), whereas ethyl acetate (15%) was the lowest by using potato-disc assay. Highest total phenolic and total flavonoid contents were noted for methanolic (69.10 GAE mg/g DW%) and n-hexane (29.45 CE mg/g DW%) extracts, respectively. For antioxidant potential, 2,2,1-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging (IC
50 ) and reducing power EC50 were noted to be superior (0.6 and 2.0 mg/mL, respectively) for n-hexane extract. All the tested extracts showed considerable antibacterial and antifungal activity with the highest growth inhibition zones for K. pneumoniae (31.70 mm) and A. flavus (27.09 mm) were shown by n-hexane extract. High Performance Liquid Chromatographic (HPLC) analysis of individual phenolics (gallic acid, 2,288.48 mg/kg) indicated the highest contents of these compounds in n-hexane extract, which might explain the potent biological activities of this extract. Our findings revealed that the bioactive present in the tested fruit had significant potential as anticancer, antibacterial, and antifungal agents. Further studies are needed to elucidate the mechanism of actions of isolated bioactive against specific diseases such as cancer, especially in the case of n-hexane fraction. [ABSTRACT FROM AUTHOR]- Published
- 2020
12. The Role Of Managerial Practices And Complexity And Size on Information System Success
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Abdul Qadir R. Ahmed
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Knowledge management ,business.industry ,Information system ,business - Published
- 2011
13. Improving the Stability and Bioaccessibility of Vitamin D3 in the Structure of Nanoniosomes Designed by Different Surfactants
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Hamideh Maqamikia, Vahid Hakimzadeh, Akram Arianfar, Qadir Rajabzade, and Mostafa Shahidi-Noghabi
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bioaccessibility ,digestive system ,encapsulation ,nanoniosome ,vitamin d3 ,Food processing and manufacture ,TP368-456 - Abstract
Due to the high nutritional value of vitamin D3 and its instability in various environmental and processing conditions, the need to preserve it through techniques such as capsulation during nutrification is felt. In this study, vitamin D3 was encapsulated in the structure of niosomes based on various surfactants (Span 60, Tween 20, and 80) and cholesterol with ratios (80:20 and 60:40 w/w) using by thin layer hydration-sonication method. It was found that the niosomes prepared with tween 20 and 80 with a surfactant to cholesterol ratio (80:20 w/w) had the lowest mean particle size distribution, lowest polydispersity index, and the highest zeta potential magnitude. Also, these samples had high encapsulation efficiency and their sizes were in the nanoscale. The stability of vitamin D3 was determined during 1 month at refrigerator condition for nanoniosomes samples based on tween 20 and 80 with a surfactant to cholesterol ratio (80:20 w/w). The results showed that tween 20 based nanoniosomes were more stable than tween 80 based samples during 1 month storage. Also, the bioaccessibility of vitamin D3 after complete digestion was evaluated under simulated gastrointestinal conditions. Based on this, it was found that the bioaccessibility of vitamin D3 in the free form is 58%, which the design of nanoniosomes based on tween significantly improved its bioaccessibility (P
- Published
- 2021
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14. Hazard and risk intensity maps for water-bearing units: a case study.
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Hamamin, D. F., Qadir, R. A., Ali, S. S., and Bosch, A. P.
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AQUIFERS ,CARBONATES ,GROUNDWATER ,HEALTH risk assessment - Abstract
Fresh groundwater from intergranular and carbonate aquifers are considered as the valuable resources for domestic, agricultural and industrial water supplies of the Iraqi Kurdistan Region. A comprehensive approach to groundwater protection using the intrinsic vulnerability, hazard and risk intensity mapping was proposed by the European COST Action 620. The current article applied all the components of the above mentioned Pan-European approach to assess the risk harmfulness in the Sulaimani sub-basin by combining hydrogeological parameters using the DRASTIC system and the hazard components by taking the product of the weighted hazard value (H), the ranking factor (Q) and the reduction factor (R). The hazard map was constructed from twenty-six hazard feature types of the point, line and polygon. Their distributions, extents and of harmfulness degrees vary sharply from one place to another. Results of the risk intensity map divided the area into five classes as 'no or very low, low, moderate, high and very high' risk zones. Fortunately, the majority of the area of interest is classified as very low to low contamination potential due to the limited impact of hazards as well as low groundwater vulnerabilities. The zones with moderate-risk potentials clustered in industrialized areas. [ABSTRACT FROM AUTHOR]
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- 2018
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15. Ultrasound-assisted extraction of saffron bioactive compounds; separation of crocins, picrocrocin, and safranal optimized by artificial bee colony
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Messiah Sarfarazi, Qadir Rajabzadeh, Razieh Tavakoli, Salam A. Ibrahim, and Seid Mahdi Jafari
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Picrocrocin ,Safranal ,Crocin ,Response surface methodology ,Ultrasound ,Saffron ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - Abstract
In this work, a four-factor five-level full factorial central composite design (CCD) was used to optimize the ultrasound-assisted extraction (UAE) of saffron major components, namely picrocrocin, safranal and crocin. The process parameters included ethanol concentration (0–100%), extraction time (2–10 min), duty cycle (0.2–1.0) and ultrasonic amplitude (20–100%). The extracted compounds were measured both by spectrophotometry and chromatography techniques. The results revealed that the middle concentrations of ethanol and relatively long process durations along with high duty cycles and ultrasonic amplitudes had the most profound impact on the yields of the extracted bioactives. UAE was optimized using response surface methodology (RSM) and artificial bee colony (ABC); a comparison between these methods indicated their optimization power was approximately the same. According to the RSM analysis, an ethanol concentration of 58.58%, extraction time of 6.85 min, duty cycle of 0.82 and amplitude of 91.11% were the optimum extraction conditions, while the optimal conditions resulting from ABC were 53.07%, 7.32 min, 0.93 and 100% for the UAE variables respectively. Finally, HPLC analysis was carried out on the UAE optimum extract resulting from RSM. Four crocetin esters were detected in the optimal extract.
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- 2022
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16. Wireless Brain Monitoring in the Emergency Department
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Bastani, A., primary, Kayyali, H., additional, Schmidt, R.N., additional, Qadir, R., additional, and Manthena, P., additional
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- 2005
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17. Fungating soft-tissue sarcomas. Treatment implications and prognostic importance of malignant ulceration.
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Potter BK, Adams SC, Qadir R, Pitcher JD, Temple HT, Potter, Benjamin K, Adams, Sheila C, Qadir, Rabah, Pitcher, J David, and Temple, H Thomas
- Abstract
Background: Several variables have been reported as being prognostic with regard to the outcomes of soft-tissue sarcomas. Although the tumors are subjectively ominous, no prior study has been performed to evaluate the treatment or prognosis of fungating soft-tissue sarcomas.Methods: We performed a retrospective review of all soft-tissue sarcomas treated at our institution between 1989 and 2004 that had been followed for a minimum of two years or until the death of the patient. Our study group consisted of twenty-four patients with a primary high-grade fungating tumor, and our control group consisted of 146 consecutive patients with a primary high-grade non-fungating tumor. The study cohorts were compared with regard to disease presentation, treatment, and oncologic outcomes.Results: There were no significant differences in tumor size, tumor depth, or histopathologic diagnoses between the cohorts, although the patients with a fungating tumor tended to be older (mean, sixty-five years compared with fifty-five years in the control group; p = 0.004) and have shorter postoperative follow-up (mean, thirty-eight months compared with sixty-five months in the control group; p = 0.03). The proportion of patients presenting with metastases was significantly greater in the group with a fungating tumor (33% compared with 9% in the control group; p = 0.003). Significantly more patients with a fungating tumor underwent amputation (35% compared with 12% in the control group; p = 0.01), while a greater proportion of control patients received radiation therapy (68% compared with 39% in the group with a fungating tumor; p = 0.02). There was no difference in the proportions of patients receiving chemotherapy or in the local recurrence rates between the two cohorts. The Kaplan-Meier five-year overall survival estimates were 20% in the group with a fungating tumor compared with 63% (p < 0.0001) in the control group. The Kaplan-Meier five-year disease-specific survival estimates for patients presenting with localized disease was 58% in the group with a fungating tumor and 74% in the control group (p = 0.05). Multivariate analysis demonstrated that disease stage, fungation, and a tumor size of > or = 10 cm were significant independent negative prognostic factors for disease-specific survival.Conclusions: Malignant tumor ulceration is an independent predictor of a poor prognosis for patients with a high-grade soft-tissue sarcoma. Despite the discouraging overall prognosis, aggressive multidisciplinary treatment can lead to long-term survival in an important subgroup of patients with fungating lesions. [ABSTRACT FROM AUTHOR]- Published
- 2009
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18. Severe bradycardia with a prominent J wave refractory to atropine: was it a cause or a result of a fall? A case report and a brief review on the treatment of hypothermia.
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Qadir R and Kanjwal K
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- 2010
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19. Study and optimization of berberine extraction conditions from barberry root by supercritical carbon dioxide
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Narges Rahimi, Abdolmajid Maskooki, Seyed Ali Mortazavi, Amir Hossein Elhamirad, and Qadir Rajabzade
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berberine ,berberis vulgaris ,extraction ,response surface methodology ,supercritical co2 ,Food processing and manufacture ,TP368-456 - Abstract
Extraction of bioactive materials from herbal plants may be interesting due to the growing trend of using herbal remedies instead of chemical ones. The aim of present study is to optimize the conditions of Berberine extraction from roots of Berberis Vulgaris by supercritical CO2. The dependency of Berberine extraction yield on extraction parameters, time and pressure, was studied by Response surface Methodology. The effective factors on the extraction yield and adequacy of proposed model was investigated according to the experimental data and statistical analysis. The correlation coefficient (R2 = 92.71 %( showed that about 93% of all alternatives can be explained by this experimental model. Pressure has the most influence on yield of extracted berberine and the interaction term of Time –Pressure is statistically significant on the berberine yield. Using supercritical CO2 method with pressure in the range of 300-400 bars and the time in the range of 40-75 minutes would lead to the maximum of berberine extraction (more than 400 µg/gr). Finally, yield of berberine extraction by SFE has been compared with traditional method (Soxhlet) and the strengths and weaknesses of this novel method have been considered.
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- 2014
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20. International orthopaedic Multicentre study (INORMUS) in fracture care: Protocol for a large prospective observational study INORMUS investigators
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Bhandari, M., PJ Devereaux, Ivers, R. Q., Miclau, T., Moroz, P., Thabane, L., Sprague, S., Mckay, P., Li, C. S., Jagnoor, J., Slobogean, G., Boniface, R., Browner, B., La Huerta, F., Pollak, A., Petrisor, B., Sancheti, P., Schemitsch, E., Zhou, J., Guyatt, G., Devereaux, P. J., Mundi, R., O Hara, N., Heels-Ansdell, D., Buckingham, L., Simunovic, N., Norton, R., Zhang, J., Tian, M., Yadav, L., Caldwell, A., Liu, Y., Wang, Q., Li, J., Zhang, Z., Zhang, W., Tian, S., Jia, Z., Guo, T., Ma, Y., Wu, G., Ma, X., Ma, J., Jia, H., Hu, S., Wang, Y., Sun, M., Qin, Y., Wang, J., Zhou, S., Qi, B., Wu, B., Zhi, C., Xing, B., Zhu, Y., Zhang, X., Yang, J., Dai, W., Lu, D., He, S., Cai, X., Liu, G., Rui, G., Hu, B., Chen, H., Hu, Y., Wang, T., Shyam, A., Borate, M., Gawande, N., Jadhav, N., Patil, S. D., Karkamakar, S., Patil, S., Ranaware, A., Tamboli, S., Gandhalikar, M., Tupe, R., Choudhary, V., Patil, P. V., Shetty, V., Shetty, N., Hegde, C., Shrivastava, S., Singh, P., Dhillon, M. S., Dhatt, S. S., Agrawal, G., Mittal, R., Sharma, V., John, B., Mahajan, A., Afzal, P. A., Prakash, J. S., Cherian, V. M., Jepegnanam, T. S., Titus, V. T. K., Nithyananth, M., Boopalan, P. R., Varghese, V. D., George, V. M., Rajagopalan, N., Nair, N., Amaravathy, R., Santhanagopal, S., Pilar, A., Chhabra, H. S., D Souza, A., Chawla, P., Raina, D., Vaksha, V., Subramanian, P., Moabelo, R. S., Segbefia, M., Baidoo, P. K., Ocloo, C. A., Baddoo, D. T., Ativor, V., Yeboah, D. K., Konadu, P., Kumah-Ametepey, R., Awariyah, D., Quartey, R., Saani, O., Quansah, R. E., Trafton, P., Anyitey-Kokor, D., Leat, M., Sobotey, J., Opuni, G., Agbenorwu, F., Gis, B. B. W. G., Ayana, B., Otsyeno, F. M. T., Jani, P., Mutiso, V. M., Atinga, J. E. O., Kilonzo, P. K., Muoki, J., Mbogori, M., Wambugu, J. W., Torutt, D., Odok, C., Kipkemoi, E., Otsyeno, D., Desmondnzioka, J. W., Owende, D., Lucinde, R., Kariuki, B., Kinyua, D., Kamau, M., Mwancha, M., Murgor, M., Nyabuti, M., Njoki, R., Lutomia, M., Nancy, N., Ndeleva, B. M., Johnson, M., Kimani, M., Gichui, K., Mara, M., Mwangi, G. C., Maina, A. M., Wamae, D., Mwangi, C., Kingori, I., Watson, P., Kiptoo, E. M., Temiloluwa, O. O., Ikechukwu, A. A., Bamidele, O. I., Akanbi, O. O., Olugbenga, I. O., Firth, G., Biscardi, A. G., Machuene, A. P., Moolman, J., Miller, B., Ramokgopa, M., Deventer, S., Pikor, T., Bhaga, R., Marealle, P., Wanini, A., Elisha, M., Zumbulu, D., Boniface, R. L., Temu, R., Mutanda, T., Ntuulo, J., Lubega, F., Tracy, G. T., Zaitun, K., Godfrey, P. B., Mandizvidza, V., Gova, M. F., Sabur, M. A., Qavi, M. I., Khundkar, T., Wangdi, K., Wangmo, N., Dorji, S., Baker, S., Thapa, J., Lodrel, K., Dorji, U., Saadat, S., Zafarghandi, M., Golbakhsh, M., Byanjankar, S., Joshi, R. R., Dwivedi, R., Sharma, J. R., Qadir, R. I., Bukhari, S. I., Baz, K. A., Wahid, I., Quang, L. N., Cuong Pham, V., Chinh, N. D., Amanquez, C., Vincenti, S. I., Bobarin, A. P., Sanchez, D. S., Elias, N., Ribeiro, J. E. G., Belangero, W. D., Mariolani, J. R. L., Livani, B., Lugnani, A., Rossi, F., Katayama, A., Kfuri, M., Fogagnolo, F., Baldy, F., Moraes, V. Y., Kojima, K. E., Dos Santos Silva, J., Demange, M. K., Andrade E Silva, F. B., Dan Silva, A. C. G., Quintero, J. E., Contreras, F., Merchan, G., Beauvoir, G., Mercado, E., Medina, F., Aguilar, G., Rubio-Avila, J., Ochoa, H. C., Cano, H. C., González, A. V., Gutierrez, N. I. G., Orozco, C. F., Jesús Martínez Ruíz, J., Martinez, D. A., Garuz, M., Altieri, J. S., Cutipa, I. J. S., Lurita, C. L., Manrique, D. T., Fernandez, J. H., Barquet, A., Rienzi, D., Elguezabal, I. A. E., Rizzo, E. A., Hovsepian, J. M., and Rodriguez, V.
21. Application of direct thermal desorption gas chromatography time-of-flight mass spectrometry for characterization of organic particulate matter
- Author
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Juergen Schnelle-Kreis, Abbaszade, G., Qadir, R., Orasche, J., Crilley, L., Morawska, L., Ayoko, G. A., and Zimmermann, R.
22. Leading report regarding the molecular epidemiology of Taenia hydatigena from Pakistan and global overview of the genetic diversity and population structure of the parasite.
- Author
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Mehmood N, Muqaddas H, Ashraf A, Aslam M, Khan M, Fatima M, Qadir R, Ibenmoussa S, Dawoud TM, Ullah MI, and Iqbal F
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- Animals, Pakistan epidemiology, Sheep, Female, Male, Phylogeny, Prevalence, Taeniasis epidemiology, Taeniasis veterinary, Taeniasis parasitology, Genetic Variation, Taenia genetics, Taenia isolation & purification, Goats parasitology, Haplotypes, Molecular Epidemiology, Sheep Diseases parasitology, Sheep Diseases epidemiology, Goat Diseases epidemiology, Goat Diseases parasitology, Electron Transport Complex IV genetics, Cysticercosis epidemiology, Cysticercosis veterinary, Cysticercosis parasitology
- Abstract
Cysticercosis, caused by larval stage of Taenia (T.) hydatigena is a disease of veterinary concern which causes major economic losses in livestock sector globally. Although livestock is the most productive part of Pakistan's economy, the epidemiological prevalence and genetic diversity of T. hydatigena has not been studied in great detail. Current study was undertaken for the estimation of the prevalence and genetic diversity of T. hydatigena among the goats and sheep of Multan in South Punjab, Pakistan. A PCR protocol targeting the cytochrome c oxidase subunit 1 (cox1) gene of T. hydatigena revealed an overall prevalence of 31.33 % among the small ruminants with higher prevalence in females (40.86 %) and older age group of >3-≤5 years (40.74 %). A total of 30 isolates were sequenced for partial mitochondrial cox1 gene which yielded 12 haplotypes with a haplotype diversity of 0.798 ± 0.68 and nucleotide diversity of 0.0046 ± 0.00183. A star like configuration was demonstrated in the haplotype network with a centrally positioned haplotype. Neutrality indices like Tajima's D and Fu's Fs were also biased towards negativity, a characteristic which suggests an expanding parasitic population. Moreover, the genetic diversity of T. hydatigena was also computed for the partial cox1 gene sequences available on GenBank, NCBI. A total of 415 sequences were retrieved out of which 142 haplotypes were identified having a haplotype diversity of 0.9150 ± 0.012 coupled with a nucleotide diversity of 0.00830 ± 0.00043. The haplotype profile of T. hydatigena population displayed an absence of a central haplotype, however, considerable genetic variation was ascertained. All the populations except Africa had a high haplotype diversity (>0.9), however, high Fst values were observed for a few populations which elucidated limited gene flow among the populations of Central/East Asia, Middle East, Europe and South Asia., Competing Interests: Declaration of Competing Interest Authors confirm that they have no conflict of interest of any sort with any one., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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23. Evaluation of Antimicrobial and Antioxidant Potential of Oxalis corymbosa Extracts.
- Author
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Attique S, Ibrahim M, Khan C, Ali A, Qadir R, Khan A, Al-Salahi R, Abuelizz HA, da Silva Medeiros P, Moreira Sampaio O, and Campos Curcino Vieira L
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- Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Anti-Bacterial Agents isolation & purification, Oxalidaceae chemistry, Anti-Infective Agents pharmacology, Anti-Infective Agents chemistry, Anti-Infective Agents isolation & purification, Antifungal Agents pharmacology, Antifungal Agents chemistry, Antifungal Agents isolation & purification, Antioxidants pharmacology, Antioxidants chemistry, Antioxidants isolation & purification, Plant Extracts chemistry, Plant Extracts pharmacology, Plant Extracts isolation & purification, Escherichia coli drug effects, Staphylococcus aureus drug effects, Microbial Sensitivity Tests, Candida albicans drug effects
- Abstract
This work aimed to assess the antioxidant and antimicrobial properties of Oxalis corymbosa extracts. Biochemical analyses were conducted on various plant parts, utilizing enzymatic and non-enzymatic assays. Parameters such as total soluble protein, chlorophyll, and carotenoid contents were also evaluated to elucidate the role of bioactive chemical compounds. The antimicrobial screening of extracts was performed against the bacterial and fungal strains Escherichia coli, Staphylococcus aureus, and Candida albicans, respectively. Results indicated that chlorophyll a, chlorophyll b, total chlorophyll, carotenoid content, anthocyanin content, catalase, peroxidase, and superoxide dismutase were most abundant in the O. corymbosa leaves. Moreover, total ascorbate peroxidase content, total phenolic content, and total flavonoid content were found to be higher in the roots compared to other parts. High-performance liquid chromatography analysis identified chlorogenic acid as the major component, followed by gallic acid, caffeic acid, quercetin, and salicylic acid. Regarding antibacterial potential, each extract exhibited significant activity, with methanolic and ethyl acetate extracts demonstrating the maximum inhibition zone against S. aureus and E. coli, respectively. These findings highlight the substantial antioxidant and antibacterial potential of different parts of O. corymbosa, suggesting their promising applications as ingredients in various nutraceutical products., (© 2024 Wiley-VHCA AG, Zurich, Switzerland.)
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- 2024
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24. RSM and ANN-Based Optimized Ultrasound-Assisted Extraction of Functional Components from Olive Fruit (cv Arbequina): Assessment of Antioxidant Attributes and GC-MS Metabolites Profiling.
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Ali L, Anwar F, Qadir R, Batool F, Mustaqeem M, and Mohsin Ali R
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- Plant Extracts chemistry, Plant Extracts isolation & purification, Ultrasonic Waves, Oleic Acids chemistry, Oleic Acids metabolism, Sitosterols chemistry, Sitosterols metabolism, Antioxidants isolation & purification, Antioxidants chemistry, Antioxidants pharmacology, Fruit chemistry, Gas Chromatography-Mass Spectrometry, Neural Networks, Computer, Olea chemistry, Olea metabolism
- Abstract
The current study devises an optimized ethanolic extraction for efficient recovery of high-value components from Pakistani olives (cv. Arbequina) using response surface methodology (RSM) and artificial neural networking (ANN). Four factors such as time, temperature, solvent concentration, and solute weight (g/100 mL) were evaluated as independent variables for determining the response (% yield). The results obtained under optimum extraction conditions such as duration (25 min), temperature (45 °C), solvent concentration (65 %; ethanol: water v/v), and solute (7.50 g/100 mL) offered bioactives extract yield of 40.96 % from Arbiquina olives. The analysis of variance (ANOVA) for the RSM model showed significant p-values and a correlation coefficient (R
2 ) of 0.9960, confirming model's reliability. The results of ANN, which employed the multilayer perceptron design, were fairly in line with the findings of the experiments. The antioxidant characteristics and GC-MS metabolite profile of the obtained extracts were examined. Arbequina olive extract (AOE) demonstrated very good antioxidant ability in terms of total phenolic, total flavonoid contents, and DPPH radical scavenging. The GC-MS analysis of AOE confirmed the presence of several bioactives, including oleic acid (36.22 %), hydroxytyrosol (3.95 %), tyrosol (3.32 %), β-sitosterol (2.10 %), squalene (1.10 %), sinapic acid (0.67 %), α-tocopherol (0.66 %), vanillic acid (0.56 %), 3,5-di-tert-butylcatechol (0.31 %), and quercetin (0.21 %). The suggested optimized extraction method can be employed to efficiently extract a wide variety of high-value components from olives with potential for nutraceutical applications., (© 2024 Wiley-VHCA AG, Zurich, Switzerland.)- Published
- 2024
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25. Exploring the Biochemical and Nutra-Pharmaceutical Prospects of Some Thymus Species - A Review.
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Anwar F, Mahrye, Khan R, Qadir R, Saadi S, Gruczynska-Sekowska E, Saari N, and Hossain Brishti F
- Subjects
- Humans, Dietary Supplements analysis, Phytochemicals pharmacology, Phytochemicals chemistry, Phytochemicals isolation & purification, Antioxidants pharmacology, Antioxidants chemistry, Thymus Plant chemistry
- Abstract
The Thymus genus includes various medicinal and aromatic species, cultivated worldwide for their unique medicinal and economic value. Besides, their conventional use as a culinary flavoring agent, Thymus species are well-known for their diverse biological effects, such as antioxidant, anti-fungal, anti-bacterial, anti-viral, anti-tumor, anti-inflammatory, anti-cancer, and anti-hypertensive properties. Hence, they are used in the treatment of fever, colds, and digestive and cardiovascular diseases. The pharmaceutical significance of Thymus plants is due to their high levels of bioactive components such as natural terpenoid phenol derivatives (p-cymene, carvacrol, thymol, geraniol), flavonoids, alkaloids, and phenolic acids. This review examines the phytochemicals, biological properties, functional food, and nutraceutical attributes of some important Thymus species, with a specific focus on their potential uses in the nutra-pharmaceutical industries. Furthermore, the review provides an insight into the mechanisms of biological activities of key phytochemicals of Thymus species exploring their potential for the development of novel natural drugs., (© 2024 Wiley-VHCA AG, Zurich, Switzerland.)
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- 2024
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26. Feasibility and safety of cryoballoon ablation for atrial fibrillation and closing patent foramen ovale without implantation:A pilot study.
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Deng J, Wang E, Liu G, Qin C, Dong Q, Yang W, Wang Y, Abdul Qadir R, and Jia F
- Abstract
Background: Patent foramen ovale (PFO) affects 20%-34% of adults and is associated with strokes and other disorders. The conventional treatment of PFO-related strokes is a closure procedure. The metal device is associated with some adverse events., Objective: Our aim was to investigate the efficacy and safety of PFO closure using cryoablation without implantation in patients with atrial fibrillation (AF) who underwent pulmonary vein isolation (PVI)., Methods: We divided the 22 patients with both PFO and AF who underwent PVI via cryoablation into 2 groups: standard PVI + atrial septal (AS) cryoablation group (group 1, n = 11) and standard PVI group (group 2, n = 11). The guidewire accesses the left atrium through the PFO without AS puncture during the procedure. Standard PVI via cryoablation was performed. The cryoballoon was retracted to the right atrium and inflated against the AS post-PVI. Patients in group 1 had cryoablation for 120-150 seconds, whereas patients in group 2 received sham ablation. The co-primary end points were the PFO closure rate and a composite of AF recurrence and stroke/transient ischemic attack (TIA) events., Results: There were no differences in procedure-related adverse events between the 2 groups. Neither group had an ischemic stroke report at 1-year follow-up. The PFO closure rate at 6 months in group 1 was significantly higher than that in group 2 (7 [63.6%] vs 1 [9.1%]; P = .002). AF recurrence post ablation was comparable in both groups at 3 months (3 [27.3%] vs 1 [9.1%]; P = .269), 6 months (0 vs 0), and 12 months (2 [18.2%%] vs 1 [9.1%]; P = .534) of follow-up., Conclusion: Cryoablation is a safe and effective approach to close PFO in patients with AF undergoing PVI in a single procedure., Competing Interests: Disclosures No potential conflict of interest was reported by the authors., (Copyright © 2024 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.)
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- 2024
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27. Optimal Enzyme-Assisted Extraction of Phenolics from Leaves of Pongamia pinnata via Response Surface Methodology and Artificial Neural Networking.
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Aziz T, Qadir R, Anwar F, Naz S, Nazir N, Nabi G, Haiying C, Lin L, Alharbi M, and Alasmari AF
- Abstract
This research work seeks to evaluate the impact of selected enzyme complexes on the optimised release of phenolics from leaves of Pongamia pinnata. After preliminary solvent extraction, the P. pinnata leaf extract was subjected to enzymatic treatment, using enzyme cocktails such as kemzyme dry-plus, natuzyme, and zympex-014. It was noticed that zympex-014 had a greater extract yield (28.0%) than kemzyme dry-plus (17.0%) and natuzyme (18.0%). Based on the better outcomes, zympex-014-based extract values were subsequently applied to several RSM parameters. The selected model is suggested to be significant by the F value (12.50) and R
2 value (0.9669). The applicability of the ANN model was shown by how closely the projected values from the ANN were to the experimental values. In terms of total phenolic contents (18.61 mg GAE/g), total flavonoid contents (12.56 mg CE/g), and DPPH test (IC50) (6.5 g/mL), antioxidant activities also shown significant findings. SEM analysis also revealed that the cell walls were damaged during enzymatic hydrolysis, as opposed to non-hydrolysed material. Using GC-MS, five potent phenolic compounds were identified in P. pinnata extract. According to the findings of this study, the recovery of phenolic bioactives and subsequent increase in the antioxidant capacity of P. pinnata leaf extract were both positively impacted by the optimisation approaches suggested, including the use of zympex-014., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2024
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28. Variability in morphology, phytochemicals and antioxidant activity in Bistorta amplexicaulis (D. Don) Greene populations under variable habitats and altitudes.
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Javid H, Ul Qadir R, Magray JA, Wani BA, Nawchoo IA, and Gulzar S
- Subjects
- Altitude, Phytochemicals pharmacology, Phytochemicals analysis, Ecosystem, Solvents, Antioxidants pharmacology, Antioxidants analysis, Plant Extracts pharmacology, Plant Extracts analysis
- Abstract
Phytochemicals have become significantly important for scientific research since these possess incredibly remarkable health benefits, especially antioxidant potential to scavenge free radicals and combat the harmful effects of oxidative stress caused by adverse environmental factors. The efficacy and quantity of these phytochemicals relies upon numerous factors including the extraction method, solvent polarity and the habitat features in which the plant is growing. In this study we emphasized on phytochemical analysis and antioxidant activity of Bistorta amplexicaulis , an important medicinal plant species from Kashmir Himalaya. We evaluated antioxidant activity using different assays from all the selected sites to enumerate the impact of habitat. The sites were selected based on varying habitat features and altitude. Our results revealed that Ethyl acetate is the potent solvent for the extraction of phytochemicals. Below ground parts exhibited better scavenging activity than the above ground parts. Amongst the sites, we found the maximum antioxidant potential at Site I. A positive correlation was found between antioxidant activity and altitude while soil attributes (OC, OM, N, P, and K) and most of the morphological traits showed a negative correlation. Overall, our study identified the elite populations that could be utilized for mass propagation and harness the ultimate antioxidant potential of B. amplexicaulis .
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- 2024
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29. Biosorption Potential of Arachis hypogaea -Derived Biochar for Cd and Ni, as Evidenced through Kinetic, Isothermal, and Thermodynamics Modeling.
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Batool F, Qadir R, Adeeb F, Kanwal S, Abdelrahman EA, Noreen S, Albalawi BFA, Mustaqeem M, Imtiaz M, Ditta A, and Gondal HY
- Abstract
Biochar derived from plant biomass has great potential for the decontamination of aqueous media. It is the need of the hour to test biochar derived from economical, easily available, and novel materials. In this regard, the present study provides insight into the sorption of two heavy metals, i.e., cadmium (Cd) and nickel (Ni), using native Arachis hypogaea and its biochar prepared through pyrolysis. The effect of different factors, including interaction time, initial concentration of adsorbate, and temperature, as well as sorbent dosage, was studied on the sorption of Cd and Ni through a batch experiment. Characterization of the native biowaste and prepared biochar for its surface morphology and functional group identification was executed using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). Results revealed the presence of different functional groups such as -OH on the surface of the adsorbent, which plays an important role in metal attachment. SEM reveals the irregular surface morphology of the adsorbent, which makes it easy for metal attachment. Thermogravimetric analysis shows the stability of A. hypogaea biochar up to 380 °C as compared with native adsorbent. The adsorption efficacy of A. hypogaea was found to be higher than that of native A. hypogaea for both metals. The best adsorption of Cd (94.5%) on biochar was observed at a concentration of 40 ppm, an adsorbent dosage of 2 g, a contact time of 100 min, and a temperature of 50 °C. While the optimum conditions for adsorption of Ni on biochar (97.2% adsorption) were reported at a contact time of 100 min, adsorbent dosage of 2.5 g, initial concentration of 60 ppm, and temperature of 50 °C. Results revealed that biochar offers better adsorption of metal ions as compared with raw samples at low concentrations. Isothermal studies show the adsorption mechanism as physical adsorption, and the negative value of Gibb's free energy confirms the spontaneous nature of the adsorption reaction. An increase in entropy value favors the adsorption process. Results revealed that the sorbent was a decent alternative to eliminate metal ions from the solution instead of costly adsorbents., Competing Interests: The authors declare no competing financial interest., (© 2023 The Authors. Published by American Chemical Society.)
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- 2023
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30. Fentanyl Versus Ondansetron for Shivering Prevention in Cesarean Section: A Comparative Study.
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Hasan SH, Haji Qadir R, and Mohammed HN
- Abstract
Background and Purpose: The incidence of postoperative shivering (PS) following intrathecal anesthesia is a common complication, with potential negative impacts on patient outcomes. This study aims to evaluate the effectiveness of intrathecal fentanyl versus intravenous ondansetron in preventing post-spinal anesthesia shivering in cesarean section patients., Experimental Approach: A randomized controlled trial was conducted from July 2021 to April 2023, involving pregnant women scheduled for cesarean section under intrathecal anesthesia. The participants were divided into three groups: group F received intrathecal fentanyl (15 μg) with spinal anesthesia, while group O received intravenous ondansetron (8 mg) added to the usual saline solution. The control group (group C) received only intravenous fluid before spinal anesthesia and intrathecal bupivacaine without fentanyl. Shivering occurrences were observed and recorded during the procedure., Key Results: The incidence of shivering was significantly lower in the fentanyl and ondansetron groups compared to the control group (p=0.0123). Both intrathecal fentanyl and intravenous ondansetron administration showed effectiveness in reducing shivering during spinal anesthesia., Conclusion: The administration of intrathecal fentanyl and intravenous ondansetron significantly reduced the occurrence of shivering during spinal anesthesia in cesarean section patients. This study contributes to advancing knowledge in the field by providing evidence of the preventative effects of these medications on post-spinal anesthesia shivering., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Hasan et al.)
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- 2023
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31. Response Surface Methodology-Based Optimized Ultrasonic-Assisted Extraction and Characterization of Selected High-Value Components from Gemlik Olive Fruit.
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Ullah S, Anwar F, Fayyaz Ur Rehman M, Qadir R, and Safwan Akram M
- Subjects
- Fruit chemistry, Ultrasonics methods, Phenols chemistry, Ethanol, Water, Plant Extracts chemistry, Antioxidants chemistry, Olea
- Abstract
This article presents an optimized ultrasound-assisted ethanolic extraction (UAEE) and characterization of selected high-value components from Gemlik olive fruit (GOF) harvested from Potohar region of Pakistan. Response surface methodology (RSM), involving central composite design (CCD), was applied to optimize the extraction variables i. e., temperature (25-65 °C), extraction time (15-45 min) and aqueous ethanol concentration (60-90 %) for optimal recovery of bioactives extract, total phenolic contents (TPC) and DPPH free radical scavengers. Under the optimized set of conditions such as 43 °C temperature, 32 min extraction time and 80 % aqueous ethanol, the best extract yield (218.82 mg/g), TPC (19.87 mg GAE/g) and DPPH scavenging activity (63.04 %) were recorded. A quadratic polynomial model was found to be reasonably fitted to the observed results for extract yield (p<0.0001 and R
2 =0.9941), TPC (p<0.0001 and R2 =0.9891), and DPPH radical scavenging activity (p<0.0001 and R2 =0.9692). Potent phenolic compounds were identified by GC/MS in GOF extract and considerable amount of essential fatty acids were also detected. The current findings support the use of UAEE as an effective green route for optimized recovery of high-value components from GOF and hence its applications can be extended to functional food and nutra-pharmaceutical developments., (© 2023 The Authors. Chemistry & Biodiversity published by Wiley-VHCA AG, Zurich, Switzerland.)- Published
- 2023
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32. Physicochemical Attributes and Antioxidant Potential of Kernel Oils from Selected Mango Varieties.
- Author
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Zahoor S, Anwar F, Qadir R, Soufan W, and Sakran M
- Abstract
The current study appraises the variations in the yield and physicochemical and antioxidant attributes among kernel oils from the seven most widely consumed varieties of Pakistani mangoes, namely, Anwar Ratul, Dasehri, Fajri, Laal Badshah, Langra, Safed Chaunsa, and Sindhri. The yield of mango kernel oil (MKO) among the tested varieties of mangoes varied significantly ( p < 0.05), ranging from 6.33% (Sindhri) to 9.88% (Dasehri). Physicochemical properties, including the saponification value, refractive index, iodine no., P.V, % acid value, free fatty acids, and unsaponifiable matter, for MKOs were noted to be 143.00-207.10 mg KOH/g, 1.443-1.457, 28.00-36.00 g/100 g, 5.5-2.0 meq/kg, 1.00-7.7%, 0.5-3.9 mg/g, and 1.2-3.3%, respectively. The fatty acid composition determined by GC-TIC-MS revealed the presence of 15 different fatty acids with variable contributions of saturated (41.92-52.86%) and unsaturated (47.140-58.08%) fatty acids. Among unsaturated fatty acids, values of monounsaturated and polyunsaturated fatty acids ranged from 41.92 to 52.85 and 7.72 to 16.47%, respectively. Oleic acid (25.69-48.57%), stearic acid (24.71-38.53%), linoleic acid (7.72-16.47%), and palmitic acid (10.00-13.26%) were the prominent fatty acids. The total phenolic content (TPC) and DPPH radical scavenging (IC
50 ) capacity of MKOs varied from 7.03 to 11.00 mg GAE/g and 4.33 to 8.32 mg/mL, respectively. The results of most of the tested attributes varied significantly ( p < 0.05) among the varieties selected. It can be concluded from the findings of this research work that MKOs from the tested varieties are potential sources of valuable ingredients for the development of nutrapharmaceuticals due to their potent antioxidant properties and high oleic fatty acid profile., Competing Interests: The authors declare no competing financial interest., (© 2023 The Authors. Published by American Chemical Society.)- Published
- 2023
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33. Antioxidant, Hypoglycemic, Antilipidemic, and Protective Effect of Polyherbal Emulsion (F6-SMONSECCE) on Alloxan-Induced Diabetic Rats.
- Author
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Akhtar MT, Almas T, Safdar S, Saadia M, Qadir R, Batool S, Mustaqeem M, Ali Shaukat U, Kanwal F, and Cai R
- Abstract
The current study focused on the antioxidant potential, α-amylase inhibitory activity, and hypoglycemic, hypolipidemic, and histoprotective (pancreas and kidney) effects of polyherbal emulsion on the alloxan-induced diabetic rats. Polyherbal formulations were prepared from extracts and oils of Nigella sativa ( N. sativa ), Citrullus colocynthis ( C. colocynthis ), and Silybum marianum ( S. marianum ). Out of nine stable formulations, one formulation named F6-SMONSECCE was found to be the best after its evaluation using antioxidant and in vitro α-amylase inhibition assay. The prepared herbal formulations showed significant ( p < 0.05) antioxidant activity in terms of radical scavenging as 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric-reducing antioxidant power (FRAP) assays and also revealed the presence of a significant amount of total phenolic and flavonoid contents. "F6- SMONSECCE" (prepared with composition; Silybum marianum oil (SMO) + Nigella sativa extract (NSE) + Citrullus colocynthis extract CCE) was selected for an in vivo trial to ascertain its antidiabetic potential. The treatment dose was determined by using an acute toxicity trial on rats. Administration of alloxan (150 mg/kg b.w., i.p.) significantly ( P < 0.05) augmented the blood glucose levels and lipid contents as total cholesterol (TC), triglycerides (TG), low-density lipoproteins (LDL-c), and very-low-density lipoproteins (VLDL-c). However, the levels of insulin and high-density lipoproteins (HDL-c) were found to be decreased, and the histopathological alterations were also found in the pancreas and kidney. The administration of the polyherbal formulation (F6-SMONSECCE) significantly attenuated the blood glucose levels (22.94%), TC (29.10%), TG (38.15%), LDL-c (27.58%), and VLDL-c (71.52%), whereas on the other side, the insulin (-149.15%) and HDL-c levels (-22.22%) were significantly increased. A significant histopathological normalization was observed in the pancreas and kidney tissues of the F6-SMONSECCE-treated rats. The current findings proposed that the prepared polyherbal formulation "F6-SMONSECCE" exhibited significant antioxidant, antilipidemic, and hypoglycemic potential and hence might be suggested as a remedy against diabetes or as a coadjuvant to synthetic medicines to maintain normal physiology., Competing Interests: The authors declare no competing financial interest., (© 2023 The Authors. Published by American Chemical Society.)
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- 2023
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34. Chemical Characterization, Antioxidant, Antimicrobial, Cytotoxicity and in Silico Studies of Hexane Extract and Essential Oils from Citrus limon Leaves.
- Author
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Riaz M, Qadir R, Tahir Akhtar M, Misbah Ur Rehman M, Anwar F, Eman R, Fayyaz Ur Rehman M, and Safwan Akram M
- Subjects
- Antioxidants chemistry, DNA Gyrase, Escherichia coli, Hexanes, Plant Leaves, Staphylococcus aureus, Anti-Infective Agents chemistry, Citrus chemistry, Oils, Volatile chemistry
- Abstract
The present study investigates the chemical composition, antioxidant and antimicrobial bioactivities of essential oil and hexane extract from Citrus limon leaves. The isolation of essential oil was carried out using the Clevenger apparatus. The percentage yield of essential oil and hexane extract from Citrus limon leaves was 0.59 and 0.50 %, respectively. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) scavenging assay highlighted that Citrus limon leaves essential oil (CLEO) and hexane extract exhibited the significant antioxidant potential of 69.64 and 67.55 %, respectively, compared to the BHT standard. Similarly, a significant inhibition in linoleic acid peroxidation was recorded in both CLEO (81.93 %) and hexane extract (50.34 %). Characterization of chemical constituents in CLEO and extract was executed using GC/MS, where Limonene was detected as a major compound in CLEO (60.52 %) and hexane extract (73.62 %). The haemolytic activity ranged from 2.46 to 5.75 % revealing negligible cytotoxicity of CLEO and hexane extract. In silico studies agree with the in vitro antimicrobial studies, where vinimalol, taraxasterol, and moretenol present in CLEO showed strong interactions/inhibition against dihydroorotase and DNA gyrase from E. coli, and the tyrosyl-tRNA synthetase and DNA gyrase from S. aureus. Based on the current data, it may be concluded that both CLEO and hexane extract possessed significant bioactivities, such as antimicrobial and antioxidant activity, with minimal cytotoxicity., (© 2022 The Authors. Chemistry & Biodiversity published by Wiley-VHCA AG, Zurich, Switzerland.)
- Published
- 2023
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35. Biological and Hypoglycemic Effects of a Polyherbal Extract on Alloxanized Diabetic Rats.
- Author
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Gardezi SNH, Akhtar MT, Qadir R, Mustaqeem M, Batool S, Siddique AB, Alhumade H, Tahir MH, and Saadia M
- Abstract
The current study investigates the antioxidant, antidiabetic, hepatoprotective, and nephroprotective potentials of a polyherbal mixture containing the methanolic extracts of seeds from Nigella sativa , Cicer arietinum , Silybum marianum , and Citrullus colocynthis and the rhizome of Zingiber officinale . The polyherbal extract (PHE) showed significant total phenolic contents (187.17 GAE/g), ferric reducing power (28%), and radical-scavenging activity (86.16%). The PHE also showed a substantial hypoglycemic effect in alloxan-induced diabetic rats by reducing the blood glucose level of the PHE-treated rats (-48.64%) and increasing the insulin level (107.5%) as compared with the diabetic control group. Likewise, an increase in high-density lipoprotein (HDL) contents (22.95%) with an associated decrease in low-density lipoprotein (LDL) levels (-43.93%) was also noted. A significant decrease in serum levels of liver marker enzymes, e.g. , SGPT (-36%), SGOT (-31%), and serum ALP (-12%), was also observed as compared with the standard drug-treated group. Based on the findings of the study, it may be suggested that PHE helps ameliorate the severity of diabetes as a herbal remedy and might be employed in nutra-pharmaceuticals, replacing synthetic antidiabetic compounds., Competing Interests: The authors declare no competing financial interest., (© 2022 The Authors. Published by American Chemical Society.)
- Published
- 2022
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36. Comparative study of hypoglycaemic and antioxidant potential of methanolic seed extract and oil of Nigella sativa on alloxanized diabetic rabbits.
- Author
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Tahir Akhtar M, Faisal Ilyas H, Ali Shaukat U, Qadir R, Masood S, Batool S, Zahoor S, and Saadia M
- Subjects
- Rabbits, Animals, Rats, Hypoglycemic Agents pharmacology, Antioxidants pharmacology, Catalase, Ascorbic Acid pharmacology, Vitamins, Bilirubin, Methanol, Plant Extracts pharmacology, Nigella sativa, Diabetes Mellitus
- Abstract
The present study was aimed to investigate the comparative antidiabetic potential of Nigella sativa seed extract and oil in an in vivo trial using rat animal model. The levels of antioxidants analysed in this study included catalase, vitamin C and bilirubin. NS methanolic extract and its oil were tested for their hypoglycemic effect against alloxanized diabetic rabbits (120mg/kg). The crude methanolic extract and the oil (2.5ml/kg/day) were given orally for 24 days that resulted in a significant reduction in glycaemia, particularly during the first 12 days of treatment (reductions of 58.09% and 73.27%, respectively), whereas the oil treated group normalised the levels of catalase (-69.23%), vitamin C (27.30%) and bilirubin (-51.48%) and the extract treated group normalised the levels of catalase (-65.38), vitamin C (24.15%) and bilirubin (-26.19%) at the end of the trial. The results have shown that the seed oil more significantly normalized the levels of serum catalase, serum ascorbic acid and total serum bilirubin as compared to the methanolic extract of Nigella sativa, so Nigella sativa seed oil (NSO) may be used as part of antidiabetic remedies against diabetes and utilized as a nutraceutical.
- Published
- 2022
37. Enzyme-Assisted Extraction of Phenolics from Capparis spinosa Fruit: Modeling and Optimization of the Process by RSM and ANN.
- Author
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Qadir R, Anwar F, Naseem K, Tahir MH, and Alhumade H
- Abstract
The current study intends to appraise the effect of enzyme complexes on the recovery of phenolics from Capparis spinosa fruit extract using the response surface methodology (RSM) and artificial neural networking (ANN). Enzymatic treatment of C. spinosa fruit extract was optimized under a set of conditions (enzyme concentration, pH, temperature, and time) against each enzyme formulation such as Kemzyme Plus Dry, Natuzyme, and Zympex-014. The extract yield observed for Kemzyme Plus Dry (42.00%) was noted to be higher than those for Zympex-014 (39.80%) and Natuzyme (38.50%). Based on the higher results, the values of Kemzyme Plus Dry-based extract were further employed in different parameters of RSM. The F -value (16.03) and p -values (<0.05) implied that the selected model is significant. Similarly, the higher values for the coefficient of determination ( R
2 ) at 0.9740 and adjusted R2 (adj. R2 ) at 0.9132 indicated that the model is significant in relation to given experimental parameters. ANN-predicted values were very close to the experimental values, which demonstrated the applicability of the ANN model. Antioxidant activities also exhibited profound results in terms of total phenolic content values (24.76 mg GAE/g), total flavonoid content values (24.56 mg CE/g), and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay (IC50 ) (5.12 mg/mL). Scanning electron microscopy revealed that after enzymatic hydrolysis, the cell walls were broken as compared with nonhydrolyzed materials. Five phenolics, namely, quercetin, m -coumaric acid, sinapic acid, kaempferol, and p -coumaric acid, were identified from C. spinosa extract by gas chromatography-mass spectrometry (GC/MS). The results of this study reveal that the proposed optimization techniques, using Kemzyme Plus Dry among others, had a positive effect on the recovery of phenolic bioactive compounds and thus increased the antioxidant potential of C. spinosa fruit extract., Competing Interests: The authors declare no competing financial interest., (© 2022 The Authors. Published by American Chemical Society.)- Published
- 2022
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38. Current challenges for researchers during the process of submission and publication.
- Author
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Kichloo A, Albosta M, Koul H, Aljadah M, Wani F, and Qadir R
- Subjects
- Humans, Research Personnel, Publishing, Peer Review, Research
- Published
- 2022
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39. Synthesis and evaluation of 2-phenylamino-1,4-naphthoquinones derivatives as potential hypoglycaemic agents.
- Author
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Razaque R, Raza AR, Irshad M, Rubab SL, Batool S, Nisar B, Akram Z, Akhtar MT, Qadir R, Siddique AB, Siddique F, and Saadia M
- Subjects
- Animals, Antioxidants chemistry, Antioxidants pharmacology, Oxidation-Reduction, Rats, Spectroscopy, Fourier Transform Infrared, Hypoglycemic Agents pharmacology, Naphthoquinones pharmacology
- Abstract
Due to the severe side effects revealed by most of the currently used antidiabetic medicines, search for finding new and safe drugs to manage diabetes is continued. Naphthoquinones possessing strong antioxidant properties have been employed as candidates for diabetes therapy. Present study is aimed at finding the antioxidant and hypoglycaemic potential of some novel derivatives of 2-phenylamino-1,4-naphthoquinones (PAN) including chloro, nitro, methyl and bromo (5a-d) derivatives synthesized by single pot experiment. Product crystals were purified by TLC and characterized by FT-IR. The antioxidant potential of the compounds was assayed through DPPH radical scavenging and reducing power activities noted as UV-vis. absorbance. The DPPH assay has showed the powerful antioxidant activity of nitro and bromo derivatives, while the nitro derivative showed the significant reduction potential towards FRAP assay. Hypoglycaemic potential of the compounds was studied in rat animal model. All synthesized compounds revealed better hypoglycaemic activity; however, the chloro-derivative exhibited the more potent hypoglycaemic activity showing about 43% reduction in the mean blood glucose levels of the treated animals. As the bioreduction of naphthoquinones may be influenced by changing its redox properties, it has been noticed that the e-donating resonance effect (+R) of 'chloro' group has shown the significant effects on biological activity through stabalization of its imine form which limits the potential of generation of free radicals during bioreduction of quinones and thus has been proposed as the reason of its hypoglycaemic activity. Future studies employing the properties of e-donating groups of PAN may optimize the drug-receptor interaction for better drug designing and drug development strategies against diabetes and also for the clinical trials.
- Published
- 2022
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40. In Response.
- Author
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Carlini AR, Joshi M, Qadir R, Castillo RC, and O'Toole RV
- Abstract
Competing Interests: The authors report no conflict of interest.
- Published
- 2021
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41. The association between body mass index and the oral Firmicutes and Bacteroidetes profiles of healthy individuals.
- Author
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Mohamed Qadir R and Assafi MS
- Abstract
Introduction: Microbiome status is considered an important factor that contributes to obesity. Investigations have shown that the oral microbiome comprises a vast array of bacterial species that can influence human health., Objective: To determine the association between the presence of the bacterial phyla Firmicutes and Bacteroidetes and the body mass index (BMI) status of normal, overweight and obese subjects in Duhok, Iraq. Additionally, to investigate the composition of oral Firmicutes and Bacteroidetes profiles for individuals with different BMI statuses., Methods: A total of 155 saliva samples were collected from participants in Duhok, Iraq. Bacterial genomic DNA was then extracted from the collected saliva. The presence of Firmicutes and Bacteroidetes phyla was detected via polymerase chain reaction., Results: Firmicutes and Bacteroidetes were detected in 63.2 and 37.4% of the population, respectively. Differences in the carriage rates of oral Firmicutes in overweight (78%) and obese individuals (83%) were statistically significant when compared to normal weight individuals (36%) (P<0.0001). The percentage rates of Bacteroidetes in obese individuals (26.4%) was statistically significant when compared to normal weight individuals (50.8%) (P=0.0078). The Firmicutes/ Bacteroidetes ratios (obese=3.1, overweight= 2.5 and normal weight=0.7) were higher with increasing BMI., Conclusion: This study provides evidence of the Firmicutes/Bacteroidetes ratio growing with increasing BMI. High rates of Firmicutes could serve a role in the development of obesity. Further studies are required to clarify the exact relationship between oral bacteria and obesity, which could lead to a promising therapeutic method for improving the physical health of humans., (© Academy of Family Physicians of Malaysia.)
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- 2021
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42. Effectiveness of Resistance Training and Associated Program Characteristics in Patients at Risk for Type 2 Diabetes: a Systematic Review and Meta-analysis.
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Qadir R, Sculthorpe NF, Todd T, and Brown EC
- Abstract
Background: Resistance training (RT) is an effective intervention for glycemic control and cardiometabolic health in individuals with type 2 diabetes (T2D). However, the use of RT in individuals at risk for T2D to prevent or delay the onset of T2D, and RT program characteristics that are most effective are still unknown. The purpose of this review is to determine the effects of RT on cardiometabolic risk factors in those at risk for T2D and to examine RT program characteristics associated with intervention effectiveness., Methods: PubMed, Cochrane, Web of Science, and Embase databases were systematically searched for published controlled trials that compared cardiometabolic outcomes in adults with cardiometabolic risk for those that underwent an RT intervention with those that did not. A systematic review and meta-analysis was conducted to determine the effect of RT on glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), body fat percentage (BF%), total cholesterol (TC), high-density lipoprotein (HDL), low-density lipoprotein (LDL), and triglycerides (TG). Additional analyses examined effects of intervention duration and dietary intervention on FPG and TG., Results: Fourteen trials with 668 participants were included. For RT compared to controls, the standardized mean difference (SMD) was -1.064 for HbA1c (95% confidence interval [CI] -1.802 to -0.327; p=0.005), -0.99 for FPG (95% CI -1.798 to -0.183; p=0.016), -0.933 for TC (95% CI -1.66 to -0.206; p=0.012), -0.840 for BF% (95% CI -1.429 to -0.251; p=0.005), -0.693 for HDL (95% CI -1.230 to -0.156; p=0.011), -1.03 for LDL (95% CI -2.03 to -0.050; p=0.039), and -0.705 for TG (95% CI -1.132 to -0.279; p=0.001)., Conclusions: RT is beneficial for improving glycemic control, BF%, and blood lipids in those at risk for diabetes. The addition of a dietary component did not result in larger reductions in FPG and TG than RT alone., Prospero Registration Id: CRD42019122217.
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- 2021
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43. Further Observations on the Use of Pacemakers in Patients with Postural Orthostatic Tachycardia Syndrome with Demonstrated Asystole.
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Kanjwal K, Kichloo A, Qadir R, and Grubb BP
- Abstract
A subgroup of postural orthostatic tachycardia syndrome (POTS) patients may also have features of neurocardiogenic syncope (NCS). Syncope and presyncope are predominant clinical features in this subgroup of patients. Asystole has been reported as the cause of some recurrent syncopal episodes following evaluation with an implantable loop recorder (ILR). We present our experience of pacing in a group of patients with POTS and NCS, which resulted in the complete elimination of syncope. We reviewed the charts of 500 patients at the University of Toledo Medical Center from 2003 to 2013 and identified 40 patients who were eligible for inclusion in this study. Patients were included in this study if they had clinical features of POTS and unusually frequent episodes of syncope. All study participants subsequently underwent ILR implantation. Forty patients, including 32 (80%) women, aged 33 ± 13 years were included in this study. All patients demonstrated prolonged asystole (> 6 seconds) or severe bradycardia (heart rate < 30 bpm) during their syncope. Ten patients demonstrated an asystole of more than 10 seconds and also had prolonged and convulsive syncope. All patients had abrupt syncope without any warning signs. All 40 patients underwent dual-chamber pacemaker implantation. Syncope was eliminated in all 40 patients following pacemaker implantation; however, they continued to experience orthostatic tachycardia. Our findings support that dual-chamber pacing may help to eliminate syncope in a subgroup of POTS patients with recurrent syncope and prolonged asystole on ILR., Competing Interests: The authors report no conflicts of interest for the published content., (Copyright: © 2021 Innovations in Cardiac Rhythm Management.)
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- 2021
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44. Phytochemical investigation and effective therapeutic potential of plants extracts against breast and ovarian cancer cell lines: compounds from zizyphus mauritiana and triticum aestivum.
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Tabassam Q, Ahmed S, Mehmood T, Iqbal M, Saeed S, Ahmad MM, Sultan A, Rehman MMU, Qadir R, Ullah A, and Abdul Rehman N
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- Alkaloids analysis, Alkaloids pharmacology, Antineoplastic Agents, Phytogenic analysis, Cell Line, Tumor, Cell Proliferation drug effects, Cell Survival drug effects, Female, Flavonoids analysis, Flavonoids pharmacology, Humans, Phenols analysis, Phenols pharmacology, Phytochemicals analysis, Plant Extracts analysis, Tannins analysis, Tannins pharmacology, Triticum chemistry, Ziziphus chemistry, Antineoplastic Agents, Phytogenic pharmacology, Breast Neoplasms pathology, Ovarian Neoplasms pathology, Phytochemicals pharmacology, Plant Extracts pharmacology
- Abstract
ancer is the leading cause of death, accounting for approximately one out of six people dying with this disease worldwide. Among all, the breast and ovarian cancers are top-ranked causes of women mortalities compared to other disorders. Although, there is advancement in technologies, but still, there are unresolved concerns to overcome the global disease burden. Currently, plants are being explored as a natural remedy to cure disorders. This research was planned to explore phytochemicals in methanolic extracts of Zizyphus mauritiana and Triticum aestivum, and their pharmacological activities were studied through Agrobacterium tumefaciens bacteria, in vitro breast cancer cell line and ovarian cancer cell line to find out novel candidates in disease control and prevention. Eleven different types of bioactive compounds were analysed in the tested extracts. The highest crude extracts percentage (75±0.02) was observed with Z. mauritiana. The extracts showed promising cell growth inhibition and tumor initiation inhibition in potato disc assay. MTT assay and Incucytes imaging analysis revealed that Z. mauritiana extract had a higher anticancer potential with 40 ± 0.92 cell viability against breast cancer cells (SKBR3) and 45 ±0.29 against ovarian cancer cells (SKOV3). In conclusion, these extracts could be used as chemotherapeutics owing to their cheapness, and easy availability. While detailed study is required for further purification and characterization of bioactives/target compounds and in-vivo activity confirmations.
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- 2021
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45. Evaluation of antidiabetic, antioxidant, and cytotoxic potential of maize (zea mays l.) husk leaf extracts.
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Riaz M, Nawaz S, Ilyas I, Rehman MMU, Qadir R, Mehmood T, Afzal M, Abdul Rehman N, and Ali A
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- Anti-Infective Agents chemistry, Anti-Infective Agents pharmacology, Antioxidants chemistry, Aspergillus niger drug effects, Aspergillus niger physiology, Bacillus subtilis drug effects, Bacillus subtilis physiology, Cell Survival drug effects, Drug Evaluation, Preclinical, Erythrocytes cytology, Erythrocytes drug effects, Escherichia coli drug effects, Escherichia coli physiology, Hemolysis drug effects, Humans, Hypoglycemic Agents chemistry, Microbial Sensitivity Tests methods, Plant Extracts chemistry, Plant Extracts pharmacology, Antioxidants pharmacology, Hypoglycemic Agents pharmacology, Plant Leaves chemistry, Zea mays chemistry
- Abstract
In current study, Maize (Zea mays L.) husk leave extracts were appraised for biological activities such as cytotoxicity, antidiabetic, antioxidant and antimicrobial. Maceration was performed to collect various fractions of husk leave extracts using a pool of solvents i.e., n-hexane, chloroform, ethyl acetate, butanol and methanol. Antioxidant potential was measured by 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging, reducing power and linoleic acid oxidation assay, using butylated hydroxy toluene (BHT) as a positive control. Total phenolic and flavonoid contents were found to be 18.47-425.11 mg/100 g GAE and 5.83-16.72 mg/100 g CE, respectively. The DPPH scavenging assay was exhibited in the range of 76.36 to 88.53%. The percentage inhibition in linoleic acid oxidation was found from 10.16 to 79.51%. Significant antimicrobial activity was demonstrated by husk leaf extracts against bacterial strains and fungal strains using disc diffusion and minimum inhibitory concentration (MIC) method. Amylase alpha assay was employed to analyze the antidiabetic activity which ranged between 9.52-24.81%. Cytotoxicity was evaluated by % age lysis (0.35-9.54%), while thrombolytic activity ranged between 7.67 to 31.27%. The results presented in this study revealed that maize (Zea mays L.) husk leaf extracts can be a valuable source of biologically active compounds and may be consumed as a source of potent herbal medicine in pharmaceuticals.
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- 2021
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46. Vancomycin Powder Use in Fractures at High Risk of Surgical Site Infection.
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Qadir R, Costales T, Coale M, Mulliken A, Zerhusen T Jr, Joshi M, Castillo RC, Carlini AR, and O'Toole RV
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- Anti-Bacterial Agents therapeutic use, Humans, Powders, Retrospective Studies, Surgical Wound Infection drug therapy, Surgical Wound Infection epidemiology, Surgical Wound Infection prevention & control, Tibial Fractures drug therapy, Tibial Fractures surgery, Vancomycin
- Abstract
Objectives: To determine if the use of intrawound vancomycin powder reduces surgical-site infection after open reduction and internal fixation of bicondylar tibial plateau, tibial pilon, and calcaneus fractures., Design: Retrospective analysis., Setting: Level I trauma center., Patients: All fractures operatively treated from January 2011 to February 2015 were reviewed; 583 high-risk fractures were included, of which 35 received topical vancomycin powder. A previously published prospectively collected cohort of 235 similar high-risk fractures treated at our center from 2007 through 2010 served as a second comparison group., Intervention: Topical vancomycin powder at wound closure., Main Outcome Measurements: Deep surgical-site infection. Analyses used both univariate comparison of all patients and 1:2 matching analysis using both nearest neighbor and propensity-based matching., Results: Compared with a control group of fractures treated during the same time period without vancomycin powder, the infection rate with vancomycin powder was significantly lower [0% (0/35) vs. 10.6% (58/548), P = 0.04]. Compared with our previously published historical infection rate of 13% for these injuries, vancomycin powder was also associated with significantly decreased deep surgical-site infection (0% vs. 13%, P = 0.02). These results agreed with the matched analyses, which also showed lower infection in the vancomycin powder group (0% vs. 11%-16%, P ≤ 0.05)., Conclusions: Vancomycin powder may play a role in lowering surgical-site infection rates after fracture fixation. A larger randomized controlled trial is needed to validate our findings., Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence., Competing Interests: R. Qadir and his institution received research support funding for this work from AO North America. No other outside source of funding was obtained for this study. R. V. O'Toole is a paid consultant for CoorsTek, Imagen, and Smith & Nephew, receives stock options from Imagen, and receives royalties from CoorsTek, unrelated to this study. He is currently the Principal Investigator on Department of Defense–funded randomized controlled trial on the same topic. M. Joshi has received payment for consultancy and development of educational presentations from Pfizer, Forest, and Atox. Her institution has current grants from Atox. The remaining authors report no conflict of interest., (Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2021
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47. Topical Vancomycin Powder Decreases the Proportion of Staphylococcus aureus Found in Culture of Surgical Site Infections in Operatively Treated Fractures.
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Qadir R, Costales T, Coale M, Zerhusen T Jr, Joshi M, and O'Toole RV
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- Anti-Bacterial Agents therapeutic use, Antibiotic Prophylaxis, Humans, Powders, Retrospective Studies, Staphylococcus aureus, Surgical Wound Infection diagnosis, Surgical Wound Infection epidemiology, Surgical Wound Infection prevention & control, Vancomycin, Methicillin-Resistant Staphylococcus aureus, Staphylococcal Infections diagnosis, Staphylococcal Infections drug therapy, Staphylococcal Infections epidemiology
- Abstract
Objectives: To determine whether patients with operatively treated fractures and surgical site infection after use of topical vancomycin powder have a lower proportion of Staphylococcus aureus infections than patients who did not receive topical vancomycin powder., Design: Retrospective cohort study., Setting: Level I trauma center., Patients: Treatment group: 10 of 133 patients (145 fractures) with surgical site infections who received intrawound vancomycin powder at the time of wound closure for fracture fixation. Control group: 175 patients who sustained deep surgical site infections during the same period but did not receive vancomycin powder., Intervention: Vancomycin powder or no vancomycin powder., Main Outcome Measurement: Proportion of patients' cultures positive for S. aureus., Results: The proportion of cultures positive for S. aureus was significantly lower in patients with surgical site infection who received vancomycin powder than in those who did not receive vancomycin powder (10% [1 of 10 patients in the treatment group] vs. 50% [87 of 175 patients in the control group]; P = 0.02). A trend was observed for a lower proportion of methicillin-resistant S. aureus (0% vs. 23%; P = 0.12)., Conclusions: Vancomycin powder might alter the bacteriology of surgical site infections and decrease the proportion in culture of the most common organism typically present after fracture surgery infection. These findings suggest that the application of vancomycin powder might change the bacteriology of surgical site infections when they occur, regardless of the effect on overall infection rates. Although our bacteriology results are clinically and statistically significant, these findings must be confirmed in larger randomized controlled trials., Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence., Competing Interests: The authors report no conflict of interest., (Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2021
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48. Diversity and recombination analysis of Cotton leaf curl Multan virus: a highly emerging begomovirus in northern India.
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Qadir R, Khan ZA, Monga D, and Khan JA
- Subjects
- Begomovirus classification, Begomovirus isolation & purification, India, Phylogeny, Sequence Analysis, DNA, Begomovirus genetics, DNA, Satellite, Plant Diseases virology, Plant Leaves virology, Recombination, Genetic, Nicotiana virology
- Abstract
Background: Cotton leaf curl disease (CLCuD), caused by begomoviruses in association with satellite molecules, is a major threat to cotton production causing enormous losses to cotton crop in most of the cotton growing countries including Indian subcontinent. In this study, isolates of begomovirus and satellite molecules associated with CLCuD were collected from North India (Haryana, New Delhi). They were amplified employing rolling circle replication mechanism, cloned, sequenced and, their phylogenetic and recombination analysis was performed., Results: The five Cotton leaf curl Multan virus (CLCuMuV) isolates investigated in this study showed monopartite organization of the genome typical of Old World begomoviruses. Nucleotide sequence analyses assigned them as the strains of CLCuMuV and were designated as CLCuMuV-SR13, CLCuMuV-SR14, CLCuMuV-ND14, CLCuMuV-ND15 and CLCuMuV-SR15. The genome of CLCuMuV-SR13 shared a highest level of nucleotide sequence identity (98%) with CLCuMuV (JN678804), CLCuMuV-SR14 and CLCuMuV-SR15 exhibited 96% with CLCuMuV (KM096471), while isolates CLCuMuV-ND15 and CLCuMuV-SR15 revealed 96% sequence identity with CLCuMuV (AY765253). The four betasatellite molecules investigated in this study shared 95-99% nucleotide sequence identity with Cotton leaf curl Multan betasatellite (CLCuMB) from India. The betasatellite molecules were designated as CLCuMB-SR13, CLCuMB-SR14, CLCuMB-ND14 and CLCuMB-ND15. Alphasatellite molecules in this study, designated as GLCuA-SR14, GLCuA-ND14 and GLCuA-SR15, revealed 98% identity with Guar leaf curl alphasatellite (GLCuA) reported from Pakistan., Conclusion: The phylogenetic and recombination studies concluded that the isolates of CLCuMuV genomes undertaken in this study have a potential recombinant origin. Remarkably, significant recombination was detected in almost all the genes with contribution of Cotton leaf curl Kokhran Virus (CLCuKoV) in IR, V1, V2, C1, C4 and C5 regions and of CLCuMuV in C2 region of CLCuMuV-SR14. CLCuKoV also donated in C2, C3 regions of CLCuMuV-ND14; V1, V2, C2 and C3 regions of CLCuMuV-ND15 and C1 of CLCuMuV-SR15. Altogether, these observations signify the uniqueness in Indian CLCuMuV isolates showing contribution of CLCuKoV in all the genes. An interesting observation was frequent identification of GLCuA in CLCuD leaf samples.
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- 2019
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49. Role of implantable loop recorders in patients with postural orthostatic tachycardia syndrome.
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Kanjwal K, Qadir R, Ruzieh M, and Grubb BP
- Subjects
- Adult, Bradycardia physiopathology, Female, Heart Arrest physiopathology, Humans, Male, Middle Aged, Retrospective Studies, Electrocardiography, Ambulatory instrumentation, Pacemaker, Artificial, Postural Orthostatic Tachycardia Syndrome physiopathology, Syncope, Vasovagal physiopathology, Syncope, Vasovagal therapy
- Abstract
Introduction: We previously reported on a subgroup of postural orthostatic tachycardia syndrome (POTS) patients who may also have features of neurocardiogenic syncope as well. In this subgroup of patients, we found syncope and presyncope were predominant clinical features. To understand the mechanism of syncope in this subgroup, we identified 39 patients who underwent loop recorder insertion., Methods: We reviewed charts of 450 patients who had POTS and syncope seen at the University of Toledo Medical Center from 2003 to 2017. Thirty-nine patients had at least four episodes of syncope in the last 6 months and were included for this study. All of these patients had a prior evaluation with a Holter and an event monitor which were inconclusive., Results: Thirty-nine patients, 33 (85%) women, aged 20-46 years, were included in this study. All patients demonstrated prolonged asystole (>6 seconds) or severe bradycardia (heart rate < 30 beats/min) during their syncope on implantable loop recorder (IRL). Fifteen patients demonstrated an asystole of >10 seconds and also had prolonged and convulsive syncope. All patients had abrupt syncope without any warning sign. All patients underwent dual-chamber pacemaker implantation using a closed loop stimulation algorithm. Syncope were completely eliminated in all patients following pacemaker implantation; however, they continued to have orthostatic tachycardia., Conclusion: POTS patients with unusually frequent syncope should be considered for ILR implantation if other monitoring modalities like 48-hour Holter monitor or event recorder are inconclusive. ILR may identify a subgroup of POTS patients who may benefit from pacemaker implantations., (© 2018 Wiley Periodicals, Inc.)
- Published
- 2018
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50. Volar capsulodesis of the thumb metacarpophalangeal joint at the time of basal joint arthroplasty: a surgical technique using suture anchors.
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Qadir R, Duncan SF, Smith AA, Merritt MV, Ivy CC, and Iba K
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- Aged, Female, Humans, Male, Metacarpophalangeal Joint physiopathology, Middle Aged, Palmar Plate surgery, Pinch Strength, Range of Motion, Articular, Retrospective Studies, Thumb physiopathology, Arthritis surgery, Joint Capsule surgery, Metacarpophalangeal Joint surgery, Thumb surgery
- Abstract
Purpose: To document the long-term results of our volar metacarpophalangeal (MCP) joint capsulodesis technique that is completed concomitantly with basal joint arthroplasty and involves a suture anchor placement, short-term pinning, and a rigid hand therapy protocol., Methods: We conducted a retrospective chart review to examine results over a 30-month period of our volar capsulodesis technique. Follow-up results were recorded 26 to 48 months after surgery. The treatment regimen included suture anchors, joint pinning for 6 weeks, and a strict hand therapy protocol. Indications for surgery were thumb MCP joint hyperextension deformity of at least 30° and radiographic evidence of stage 3 (or greater) basal joint arthritis. We examined preoperative and postoperative range of motion, pain, pinch strength, and complications. Average patient age was 63 years (range, 55-77 y). We treated 14 thumbs in 14 patients., Results: After capsulodesis, average range of motion for the MCP joint of the thumb was 4° extension and 46° flexion. The last follow-up indicated no cases of hyperextension contracture. Complications included one superficial pin track infection (treated with oral antibiotics) and one patient's report of pain at the thumb MCP joint., Conclusions: When completed as described, thumb MCP joint capsulodesis performed concurrently with trapeziometacarpal arthroplasty can be a straightforward procedure that produces positive results., Type of Study/level of Evidence: Therapeutic IV., (Copyright © 2014 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.)
- Published
- 2014
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