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Najeeb MI, Ahmad MD, Anjum AA, Maqbool A, Ali MA, Nawaz M, Ali T, Manzoor R. Distribution, screening and biochemical characterization of indigenous microalgae for bio-mass and bio-energy production potential from three districts of Pakistan. BRAZ J BIOL 2024; 84:e261698. [DOI: 10.1590/1519-6984.261698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Abstract Trend of biofuel production from microalgal triacylglycerols is enhancing, because this substrate is a good sustainable and advantageous alternative to oil and gas fuel. In the present study, indigenous micro algal isolates were screened from water (n=30) and soil (n=30) samples collected from three districts of Punjab, Pakistan to evaluate their biofuel production potential. The samples were inoculated on BG – 11 agar medium plates by incubating at room temperature of 25°C providing 1000 lux for 16h light cycle followed by 8h of dark cycle for 15 d. Water samples were found to be rich in microalgae and 65.33% microalgae (49 isolates) were isolated from Faisalabad district. On the basis of microscopic morphology microalgal isolates (n=180) were selected and subjected to lipid detection by Nile red staining assay. Nile red positive isolates (n=23) were processed for biochemical (lipid, protein and carbohydrates) characterization. AIN63 isolate showed higher lipids (17.4%) content as detected by micro vanillin assay. Algal isolate AIN128 showed best protein contents (42.91%) detected by Bradford assay and AIN172 isolate showed higher carbohydrate contents (73.83%) as detected by anthrone assay. The selected algal isolates were also analyzed by Fourier transform infrared (FTIR) spectroscopy for confirmation of carbohydrate, protein and lipid analysis. These indigenous algae have the potential for in-vitro biofuel production from agricultural waste.
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Affiliation(s)
- M. I. Najeeb
- University of Veterinary and Animal Sciences, Pakistan
| | - M.-D. Ahmad
- University of Veterinary and Animal Sciences, Pakistan
| | - A. A. Anjum
- University of Veterinary and Animal Sciences, Pakistan
| | - A. Maqbool
- University of Veterinary and Animal Sciences, Pakistan
| | - M. A. Ali
- University of Veterinary and Animal Sciences, Pakistan
| | - M. Nawaz
- University of Veterinary and Animal Sciences, Pakistan
| | - T. Ali
- University of Veterinary and Animal Sciences, Pakistan
| | - R. Manzoor
- University of Veterinary and Animal Sciences, Pakistan
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Zhang L, Sahar AM, Li C, Chaudhary A, Yousaf I, Saeedah MA, Mubarak A, Haris M, Nawaz M, Reem MA, Ramadan FA, Mostafa AAM, Feng W, Hameed Y. A detailed multi-omics analysis of GNB2 gene in human cancers. BRAZ J BIOL 2024; 84:e260169. [DOI: 10.1590/1519-6984.260169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/07/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract The Guanine-nucleotide binding protein 2 (GNB2) encodes for β2 subunit (Gβ2) of the G-protein complex. Keeping in view the increased demand of reliable biomarkers in cancer, the current study was planned to extensively explored GNB2 expression variation and its roles in different cancers using online available databases and diverse methodology. In view of our results, the GNB2 was notably up-regulated relative to corresponding controls in twenty three cancer types. As well, the elevated expression of GNB2 was found to be associated with the reduced overall survival (OS) of the Liver Hepatocellular Carcinoma (LIHC) and Rectum Adenocarcinoma (READ) only out of all analyzed cancer types. This implies GNB2 plays vital role in the tumorigenesis of LIHC and READ. Several additional analysis also explored six critical pathways and few important correlations related to GNB2 expression and different other parameters such as promoter methylation, tumor purity, CD8+ T immune cells infiltration, and genetic alteration, and chemotherapeutic drugs. In conclusion, GNB2 gene has been identified in this study as a shared potential biomarker (diagnostic and prognostic) of LIHC and READ.
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Affiliation(s)
| | | | - C. Li
- Sichuan University, PR China
| | | | - I. Yousaf
- Government College University Faisalabad, Pakistan
| | | | | | - M. Haris
- Nowshera Medical College, Pakistan
| | | | | | | | | | - W. Feng
- Sichuan University, PR China
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Gautam D, Dolma KG, Khandelwal B, Mitsuwan W, Mahboob T, Pereira ML, Nawaz M, Wiart C, Ardebili A, Siyadatpanah A, Ehtesham H, Patra JK, Kwanhian W, Nissapatorn V. Acinetobacter baumannii: An overview of emerging multidrug-resistant pathogen. Med J Malaysia 2022; 77:357-370. [PMID: 35638493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The emergence of infections caused by Acinetobacter baumannii, a multidrug-resistant bacterium, has been a concern worldwide. This bacterium is an important hospitalacquired pathogen that causes several diseases including ventilator-associated pneumonia, bloodstream infections, and meningitis. This study aimed to determine antibioticresistant mechanisms in the pathogenesis of A. baumannii and the alternative treatment strategies against it. The combined actions of outer membrane protein A, formation of a biofilm on biotic and abiotic surfaces, phospholipases C and D, metal homeostatic system, lipopolysaccharides, and verotoxins are relevant for virulence and pathogenesis. A. baumannii resists the broad-spectrum antibiotics by its mechanisms of resistance, such as β-lactamases, efflux pump, aminoglycoside modifying enzymes, permeability changes, and alternation of targets. In an attempt to overcome the resistance mechanisms, plant-derived compounds and a combination of the antibiotics and the plant phytocompounds have been focused. Nanoparticles synthesised with the plant extract have been studied extensively. Furthermore, we projected modern methods, including multi-omics analysis, to study insight into mechanisms of actions of antibiotics. The information suggested that the potential antibiotic mechanisms of A. baumannii could lead to an alternative treatment against A. baumannii infections.
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Affiliation(s)
- D Gautam
- Walailak University, School of Allied Health Sciences and Research Excellence Centre for Innovation and Health Products (RECIHP), Nakhon Si Thammarat, Thailand
| | - K G Dolma
- Sikkim Manipal University, Sikkim Manipal Institute of Medical Sciences (SMIMS), Department of Microbiology, Sikkim, India.
| | - B Khandelwal
- Sikkim Manipal University, Sikkim Manipal Institute of Medical Sciences (SMIMS), Department of Medicine, Sikkim, India
| | - W Mitsuwan
- Walailak University, School of Allied Health Sciences and Research Excellence Centre for Innovation and Health Products (RECIHP), Nakhon Si Thammarat, Thailand
| | - T Mahboob
- University of Malaya, Faculty of Medicine, Department of Medical Microbiology, Kuala Lumpur, Malaysia
| | - M L Pereira
- University of Aveiro, Department of Medical Sciences and CICECO-Aveiro Institute of Materials, Aveiro, Portugal
| | - M Nawaz
- Imam Abdulrahman Bin Faisal University, Institute for Research and Medical Consultations (IRMC), Department of Nano-Medicine Research, Dammam, Saudi Arabia
| | - C Wiart
- Nottingham University Malaysia Campus, School of Pharmacy, Selangor, Malaysia
| | - A Ardebili
- Golestan University of Medical Sciences, Laboratory Sciences Research Center, Gorgan, Iran
| | - A Siyadatpanah
- Birjand University of Medical Sciences, Ferdows School of Paramedical and Health, Birjand, Iran
| | - H Ehtesham
- Birjand University of Medical Sciences, Ferdows School of Paramedical and Health, Birjand, Iran
| | - J K Patra
- Research Institute of Integrative Life Sciences, Dongguk University-Seoul, Goyang-Si, Republic of Korea
| | - W Kwanhian
- Walailak University, School of Allied Health Sciences and Research Excellence Centre for Innovation and Health Products (RECIHP), Nakhon Si Thammarat, Thailand
| | - V Nissapatorn
- Walailak University, School of Allied Health Sciences and Research Excellence Centre for Innovation and Health Products (RECIHP), Nakhon Si Thammarat, Thailand
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Waris A, Din M, Iqbal N, Yar L, Khalid A, Nawaz M, Baset A, Ali M. Evaluation of serum procalcitonin level as a biomarker for disease severity in COVID-19 patients. New Microbes New Infect 2021; 43:100922. [PMID: 34336223 PMCID: PMC8302477 DOI: 10.1016/j.nmni.2021.100922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Indexed: 01/11/2023] Open
Abstract
The pandemic of coronavirus disease 2019 (COVID-19) has infected millions of individuals around the globe. Forecasting the COVID-19 severity is essential, and various biomarkers could be used to evaluate it. The current study was therefore aimed to evaluate the serum pro-calcitonin (PCT) level as a biomarker for bacterial co-infection and disease severity in COVID-19 patients. A total of 430 COVID-19 positive individuals were examined, in which 332 (77.2%) were male individuals while 98 (22.8%) were female individuals. Among the examined samples, 281 were classified as moderate (PCT value 0.07 ± 0.06 ng/mL), 95 were severe (PCT value 0.5 ± 0.4 ng/mL), and 54 were classified as critical (PCT value > 1 ng/mL) individuals. The increase in the total serum level of PCT was observed with the severity of the disease (p < 0.05). The statistical analysis represented no association of PCT value with gender (p 0.9650) while revealed a significant association (p < 0.001) with the age and PCT value in COVID-19 patients. It can be concluded that the serial PCT measurement could determine the prognosis of the disease and the presence of bacterial co-infection in COVID-19 patients. Further exploration of the topic is needed to evaluate the effect of different therapies on the PCT level and to prescribe specific treatment options for coinfection.
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Affiliation(s)
- A. Waris
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - M. Din
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - N. Iqbal
- Department of Statistics, Quaid-i-Azam University, Islamabad, Pakistan
| | - L. Yar
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - A. Khalid
- Sahiwal Medical College, University of Health Sciences, Lahore, Pakistan
| | - M. Nawaz
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - A. Baset
- Department of Zoology, Bacha Khan University, Charsadda, Pakistan
| | - M. Ali
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
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Lashari M, Anjum H, Hassan W, Mubeen S, Azhar M, Farooq U, Anam M, Sial N, Gulshan A, Nawaz M, Masood S, Naeem M, Khan M. Study on prevalence and liver function test enzymes of differently plumaged peafowls (Pavo cristatus) infected with Toxoplasma gondii in captivity. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-11721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - H. Anjum
- Virtual University of Pakistan, Pakistan
| | | | | | | | - U. Farooq
- The Islamia University of Bahawalpur, Pakistan
| | - M. Anam
- The Islamia University of Bahawalpur, Pakistan
| | - N. Sial
- The Islamia University of Bahawalpur, Pakistan
| | | | | | | | | | - M.I. Khan
- Xi’an Jiaotong University, PR. China
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Uzma Arif, Nawaz M, Rana S, Qureshi IH, Elmasry Y, Hussain S. Influence of Chemical Reaction on Mass Transport in Yield Stress Exhibiting Flow Regime. Theor Found Chem Eng 2021. [DOI: 10.1134/s0040579520060123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yaseen M, Saleem M, Nawaz M, Ahmad N, Riaz A. 55 Donor age has the least influence on recovery, quality, and in vitro developmental competence of ovum pickup–based Holstein Friesian oocytes under subtropical conditions. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab55] [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: 11/23/2022] Open
Abstract
The use of oocytes obtained from younger donors for invitro fertilization followed by embryo transfer represents an opportunity to accelerate genetic gain by reducing generation interval. The present study was designed to evaluate the effect of age of donor on the follicular population, recovery, quality and invitro developmental competence of ovum pickup based Holstein Friesian oocytes under subtropical conditions. A total of eight (n=8) Holstein Friesian (with proper oestrus cyclicity) were selected for the study and divided into 2 groups based on animal age: (1) heifers (n=4), 1.5 to 2 years of age, and (2) adults (n=4), 5 to 6 years of age. The study was conducted near Lahore (31°33′ N, 74°19′ E), Punjab, Pakistan, from November 2019 to February 2020. The animals were wave synchronized using the physiological method of wave synchronization. After 4 days of second dominant follicle puncture, the first ovum pickup was carried out and a total of nine (n=9) OPU sessions were held for each group. The COCs from the follicles were aspirated using a transvaginal ultrasound–guided needle. Following searching and grading, COCs of grade A, B and C were processed for IVM in 100-µL droplets of BO-IVM under mineral oil at 37°C, 5% CO2, and 95% humidity for 24h. The frozen semen of a high-pedigree bull was thawed at 37°C and observed for post-thaw sperm motility. The semen samples of the same bull having motility >50% were processed using the sperm swim-up method throughout the study. The IVF was carried out by placing the COCs and required amount of sperm in 100-µL droplets of BO-IVF at similar conditions for a maximum of 18h. The presumptive zygotes were denuded by gentle pipetting and cultured for a period of 7 days after placing in 100-µL drops of BO-IVC at 37°C, 5% CO2, 5% O2, and maximum humidity. The presumptive zygotes were observed for cleavage rate and blastocyst rate on Days 2 and 7 following COCs-sperm co-incubation. Data on the follicular population, oocytes recovered, and viable oocytes were analysed by the PROC GLIMMIX of SAS (SAS Institute Inc.), and proportional data were analysed by the Chi-squared method using SAS 9.1. COCs of grade AB (35.2 vs. 25.4%) were higher (P>0.05) in the adult group than in the heifer group, respectively. Similarly, COCs with grade CD (57.5 vs. 71.9%) were lower (P<0.05) in the adult group compared with the heifer group, respectively. However, the total follicles (6.55±0.42 vs. 6.39±0.39), number of COCs recovered (3.33±0.32 vs. 3.17±0.41), viable oocytes (3.08±0.29 vs. 3.08±0.39), cleavage rate (60.3 vs. 68.7%), and blastocyst rate (38.7 vs. 48.8%) did not differ (P>0.05) between the groups. To conclude, donor age up to third lactation, under subtropical conditions, does not affect invitro embryo production in Holstein Friesian undergoing repeated OPU.
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Saleem M, Nawaz M, Yaseen M, Yousuf MR, Bajwa AG, Riaz A. 54 Effect of clinical endometritis on the follicle growth dynamics, oocyte recovery, oocyte quality, and invitro developmental competence of oocytes using ovum pickup in Sahiwal cattle. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab54] [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: 11/23/2022] Open
Abstract
Sahiwal cattle is the premium quality milk breed of cattle in Pakistan. Uterine infections often lead to culling of valuable animals from a herd, resulting in genetic drain. The genetic potential of problematic females could be reaped by invitro embryo production. The objective of the present study was to evaluate the effect of clinical endometritis on follicle growth dynamics, recovery, quality, and invitro developmental competence of oocytes using ovum pickup (OPU) in Sahiwal cattle. The animals, 5–7 years of age, third or fourth parity, and 160 to 170 days in milk (DIM), were inspected for any discharge at the vulva or inside the vagina. Then, B-mode ultrasonography was performed to measure the diameter of cervix and to examine the uterus for the presence of pus. The animals (n=12) were divided into 2 groups: (1) healthy (n=6), and (2) clinical endometritis (n=6), based on the presence or absence of pus at the vulva or in the vagina. The first OPU was performed after 7 days of dominant follicle puncture and subsequently repeated OPUs (54 and 50), after every 7 days over 9 OPU sessions, were performed in the healthy group and clinical endometritis group, respectively. Follicles were aspirated using transvaginal ultrasound–guided needle. Viable COCs were considered for further processing only and were placed in the 100-µL droplets of BO-IVM medium and incubated at 37°C, 5% CO2, and 95% humidity for 24h. Nuclear maturation was estimated by staining the oocytes with Hoechst 33342. Frozen semen from the same Sahiwal bull was thawed and processed for IVF throughout the study. Sperm were prepared using swim-up protocol. Sperm and COCs were co-incubated in 100-µL droplets of BO-IVF for 18h. Finally, presumptive zygotes were cultured in 100-µL drops of BO-IVC medium at 37°C, 5% CO2, 5% O2, and 95% humidity for a period of 7 days. Cleavage rate and blastocyst rate were recorded on Day 2 and 7 following IVF, respectively. The data were analysed using the GLIMMIX procedure of SAS (SAS Institute Inc.). The results revealed that the number of medium-sized follicle (1.32±0.11 vs. 0.56±0.11) and total follicles (9.14±0.70 vs. 6.58±0.72) were higher (P<0.05) in the healthy group than in the clinical endometritis group, respectively. Similarly, the number of oocytes recovered (5.05±0.39 vs. 2.78±0.41), viable oocytes (2.87±0.25 vs. 1.46±0.26), COCs with grade AB, having minimum of 2 cumulus cell layers and homogeneous cytoplasm, (33 vs. 20%) and nuclear maturation (68 vs. 55%) were also higher (P<0.05) in the healthy group than in the clinical endometritis group, respectively. However, cleavage rate (55 vs. 46%) and blastocyst rate (29 vs. 26%) did not differ (P>0.05) between the groups. In conclusion, clinical endometritis has a negative effect on follicle growth dynamics, oocyte recovery, oocyte quality, and nuclear maturation; however, the developmental competence of COCs is not compromised by it.
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Jahangir M, Nawaz M, Nanjiani D, Siddiqui MS. Clinical manifestations and outcomes of COVID-19 in the paediatric population: a systematic review. Hong Kong Med J 2020; 27:35-45. [PMID: 32994372 DOI: 10.12809/hkmj208646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE Coronavirus disease 2019 (COVID-19), the respiratory illness caused by severe acute respiratory syndrome coronavirus 2, has affected hundreds of thousands of people. We aim to report the distribution of cases, prevalence, and clinical, radiological, and laboratory signs and outcomes of COVID-19 in paediatric patients. Moreover, we intend to evaluate neonatal clinical outcomes. Hence, our age range of interest is 0 to 19 years. METHODS A systematic literature review was conducted using the Medline database to identify papers published between 1 December 2019 and 9 April 2020 on COVID-19. RESULTS The search identified 27 relevant scientific papers and letters. The review showed that the prevalence of COVID-19 in the paediatric population accounts for a small percentage of patients, whose clinical signs and symptoms are often milder than those of adults. Despite better prognosis and low mortality in children, the disease can progress to severe pneumonia in some cases, especially in the presence of co-morbidities. Children are likely to become a hidden source of infection because of their atypical presentation, and they may play a role in community transmission, leading to unfavourable outcomes. There is little evidence about intrauterine vertical transmission. As no vaccine or specific antiviral is currently available, management plans include supportive treatment. CONCLUSION As compared with that in adults, the presentation of COVID-19 in children is mild and has a better prognosis. Sufficient evidence regarding the probability of intrauterine vertical transmission could not be found, and further studies need to be conducted to establish this relationship.
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Affiliation(s)
- M Jahangir
- Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - M Nawaz
- Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - D Nanjiani
- Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan
| | - M S Siddiqui
- Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan
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Rana S, Iqbal MZ, Nawaz M, Khan HZI, Alebraheem J, Elmoasry A. Influence of Chemical Reaction on Heat and Mass Transfer in MHD Radiative Flow due to Non-Coaxial Rotations of Disk and Fluid at Infinity. Theor Found Chem Eng 2020. [DOI: 10.1134/s0040579520040247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lashari M, Farooq U, Mubeen S, Hassan W, Azhar M, Shahida S, Khan M, Aslam S, Masood S, Anam M, Wajid A, Pervez M, Akhtar M, Farooq A, Zafar S, Nawaz M, Gulshan A. Seroprevalence of Toxoplasma gondii and associated hematological alterations in small ruminants of D.G. Khan district of Southern Punjab, Pakistan. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The present study was carried out to evaluate the prevalence and hematological effects of Toxoplasma gondii in sheep and goat in district Dera Ghazi Khan. Blood samples (n=204) were collected comprise goats (n=101) and sheep (n=103) alongwith age, gender and breeds of animals. Samples were collected randomly from 25 flocks of 7 different union council Viz. Vehova, Tibbi Qaisrani, Lakhani, Kohar, Tuman Qaisrani, Nutkani and Kot Qaisrani of Tehsil Taunsa Sharif at least 4 animals from each flock. All ruminants divide into three groups based on age, breed and gender. The prevalence was detected through two different kits Viz. LAT and ELISA kit. The overall prevalence suspected in goats through LAT and ELISA kit was (35.64%), (32.67%) and in sheep was (25.24%), (23.30%) respectively. The Toxoplasma gondii had a significant effect on goats in age groups and non-significant all other groups of goats and sheep. Toxoplasma gondii had a significant effect on all hematological parameters like Hemoglobin, total leukocyte cells, granulocytes, lymphocytes, platelets, and red blood cells, except monocytes. In conclusion of the current study, toxoplasmosis is prevalent among ruminants, reveals the possibility of transmission to humans on the use of host animals as protein source.
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Affiliation(s)
| | - U. Farooq
- The Islamia University of Bahawalpur, Pakistan
| | | | - W. Hassan
- The Women University of Multan, Pakistan
| | | | | | | | - S. Aslam
- Virtual University of Pakistan, Pakistan
| | - S. Masood
- Bahauddin Zakariya University, Pakistan
| | - M. Anam
- The Islamia University of Bahawalpur, Pakistan
| | - A. Wajid
- Virtual University of Pakistan, Pakistan
| | | | | | | | - S. Zafar
- The Government Sadiq College Women University, Pakistan
| | - M. Nawaz
- Bahauddin Zakariya University, Pakistan
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Almessiere M, Slimani Y, Gungunes H, Sertkol M, Nawaz M, Algarou N, Baykal A, Ercan I. Tb3+ substituted strontium hexaferrites: Structural, magnetic and optical investigation and cation distribution. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Almessiere M, Slimani Y, Guner S, Nawaz M, Baykal A, Aldakheel F, Sadaqat A, Ercan I. Effect of Nb substitution on magneto-optical properties of Co0.5Mn0.5Fe2O4 nanoparticles. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.075] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Slimani Y, Almessiere MA, Sertkol M, Shirsath SE, Baykal A, Nawaz M, Akhtar S, Ozcelik B, Ercan I. Structural, magnetic, optical properties and cation distribution of nanosized Ni 0.3Cu 0.3Zn 0.4Tm xFe 2-xO 4 (0.0 ≤ x ≤ 0.10) spinel ferrites synthesized by ultrasound irradiation. Ultrason Sonochem 2019; 57:203-211. [PMID: 31085087 DOI: 10.1016/j.ultsonch.2019.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 05/27/2023]
Abstract
In this study, Tm3+ ion substituted NiCuZn nanospinel ferrites, Ni0.3Cu0.3Zn0.4TmxFe2-xO4 (0.0 ≤ x ≤ 0.10), have been synthesized sonochemically. The structural, spectroscopic, morphological, optic and magnetic investigation of the samples were done by X-ray powder diffractometry (XRD), Fourier transform infrared spectrophotometry (FT-IR), UV-Vis diffused reflectance (%DR) spectrophotometry, transmission and scanning electron microscopies (TEM and SEM) along with EDX, Vibrating sample magnetometry (VSM), respectively. The purity of prepared products were confirmed via XRD, FT-IR, EDX and elemental mapping analyses. The analyses of magnetization versus M(H) (applied magnetic field) were performed at 300 and 10 K. The following magnetic parameters like Ms (saturation magnetization), SQR = Mr/Ms (squareness ratio), nB(magnetic moment), Hc (coercivity) and Mr (remanence) have been discussed. M(H) loops revealed superparamagnetic property at RT and soft ferromagnetic nature at 10 K. It is showed that the Tm3+ substitutions significantly affect the magnetizations data. A decreasing trend in the Ms, Hc, Mr, and nB values was detected with Tm3+ substitution.
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Affiliation(s)
- Y Slimani
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia.
| | - M A Almessiere
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - M Sertkol
- Deanship of Preparatory Year, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - Sagar E Shirsath
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW 2052, Australia
| | - A Baykal
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - M Nawaz
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - S Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - B Ozcelik
- Department of Physics, Faculty of Science and Letters, Cukurova University, 01330 Balcali-Adana, Turkey
| | - I Ercan
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
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Nawaz M, Almessiere MA, Almofty SA, Gungunes CD, Slimani Y, Baykal A. Exploration of catalytic and cytotoxicity activities of Ca xMg xNi 1-2xFe 2O 4 nanoparticles. J Photochem Photobiol B 2019; 196:111506. [PMID: 31129509 DOI: 10.1016/j.jphotobiol.2019.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 12/31/2022]
Abstract
The CaxMgxNi1-2xFe2O4 (x ≤ 0.05) nanoparticles (NPs) have been synthesized hydrothermally. The XRD analyses confirmed the purity of all products and their spherical morphology and compositions were explained by SEM, TEM, EDX and Elemental mapping analyses. Results confirmed the composition of CaxMgxNi1-2xFe2O4. The surface area of them was determined by BET analysis. Results indicated that when x is increased surface area of CaxMgxNi1-2xFe2O4 is decreased as compare with x = 0.0, however, at high composition (x = 0.05), surface area is increased. Catalytic activity of CaxMgxNi1-2xFe2O4 (x ≤ 0.05) NPs was studied for the reduction of 4-nitrophenol as a model compound. Reaction was monitored by UV-spectrophotometer at room temperature and at different times. Among different compositions of CaxMgxNi1-2xFe2O4, it was noticed that x = 0.04 exhibited more activity for the reduction of 4-nitrophenol and x = 0.03 was observed least active. Results suggested that CaxMgxNi1-2xFe2O4 could be useful material for catalytic applications. Cytotoxicity activity of CaxMgxNi1-2xFe2O4 (x ≤ 0.05) NPs against HCT116 (Human colon cancer cell line) cell line and MCF-7 (breast cancer cell line) was evaluated by using MTT assay. It was observed that CaxMgxNi1-2xFe2O4 (x ≤ 0.05) NPs exhibited less cytotoxicity. Due to less cytotoxicity, CaxMgxNi1-2xFe2O4 may also be useful in the field of biomedical applications.
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Affiliation(s)
- M Nawaz
- Department of Nano-Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.0. Box 1982, Dammam 31441, Saudi Arabia.
| | - M A Almessiere
- Department of Nano-Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.0. Box 1982, Dammam 31441, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - S A Almofty
- Department of Stem Cell Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.0. Box 1982, Dammam 31441, Saudi Arabia
| | - C D Gungunes
- Department of Nutrition and Dietetics, Faculty of Health Science, Hitit University, 19030 Cevre Yolu Bulvarı, Corum, Turkey
| | - Y Slimani
- Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia; Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
| | - A Baykal
- Department of Nano-Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.0. Box 1982, Dammam 31441, Saudi Arabia
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Eibes P, Francis E, Chaturvedi R, Nawaz M, Shyju S, Thulasidas D, Hellani A. Why Day 3 biopsy mosaicism is blamed for the lack of success of PGD-A? Reprod Biomed Online 2019. [DOI: 10.1016/j.rbmo.2019.03.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nawaz M, Rana S, Qureshi IH. Computational fluid dynamic simulations for dispersion of nanoparticles in a magnetohydrodynamic liquid: a Galerkin finite element method. RSC Adv 2018; 8:38324-38335. [PMID: 35559067 PMCID: PMC9089835 DOI: 10.1039/c8ra03825b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 11/06/2018] [Indexed: 11/21/2022] Open
Abstract
This investigation studies the effects of the thermo-physical properties of four types of nano-metallic particles on the thermo-physical properties of radiative fluid in the presence of buoyant forces and Joule heating (ohmic dissipation). The Galerkin finite element algorithm is used to perform computations and simulated results are displayed in order to analyze the behavior of velocity and temperature of copper, silver, titanium dioxide and aluminum oxide-nanofluids. All the simulations are performed with ηmax = 6 computational tolerance 10−6 for 200 elemental discretizations. Due to the dispersion of nano-sized particles in the base fluid, an increase in the thermal conduction is noticed. This study also predicts future improvements in the thermal systems. Due to magnetic field and fluid flow interaction, the electrical energy converts into heat. This is undesirable in many thermal systems. Therefore, control of Joule heating in the design of thermos systems is necessary. However, this dissipation of heat may be desirable in some biological fluid flows. An increase in energy losses is noted as magnetic intensity is increased. This investigation studies the effects of the thermo-physical properties of four types of nano-metallic particles on the thermo-physical properties of radiative fluid in the presence of buoyant forces and Joule heating (ohmic dissipation).![]()
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Affiliation(s)
- M. Nawaz
- Department of Applied Mathematics & Statistics
- Institute of Space Technology
- Islamabad
- Pakistan
| | - Shafia Rana
- Department of Applied Mathematics & Statistics
- Institute of Space Technology
- Islamabad
- Pakistan
| | - Imran Haider Qureshi
- Department of Applied Mathematics & Statistics
- Institute of Space Technology
- Islamabad
- Pakistan
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Jawad Ul Qamar M, Purmah Y, Nawaz M, Kirchhof P. P847Diagnostic yield of 7-day holter ECG monitoring for new AF and association with co-morbidities. Outcomes in an all-comer cohort from a large teaching trust. Europace 2017. [DOI: 10.1093/ehjci/eux151.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Asghar S, Arif M, Nawaz M, Muhammad K, Ali MA, Ahmad MD, Iqbal S, Anjum AA, Khan M, Nazir J. Selection, characterisation and evaluation of potential probiotic Lactobacillus spp. isolated from poultry droppings. Benef Microbes 2015; 7:35-44. [PMID: 26565086 DOI: 10.3920/bm2015.0020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Aim of the present study was to characterise and evaluate probiotic potential of lactobacilli isolated from indigenous poultry. Lactobacilli were isolated from poultry droppings and identified by genus specific polymerase chain reaction and 16S rRNA gene sequencing. Isolates were characterised in vitro by their ability to tolerate low pH and bile salts, phytase activity, antimicrobial activity, antibiotic susceptibility profile, and autoaggregation and coaggregation with poultry gut pathogens. In vivo evaluation of selected isolates was done by their effect on the body weight gain and immune response of broiler chicks. Total of 90, one-day old chicks, were randomly divided in 9 groups and given selected lactobacilli alone and in combinations (108 cfu/bird, daily) from day 7 to day 35. Body weight gain and humoral immune response to New Castle Disease Virus (NDV) vaccine were determined weekly. Three lactobacilli isolates (SMP52, SMP64 and SMP70) were selected as potentially probiotic bacteria on the basis of in vitro characterisation and identified as Lactobacillus crispatus, Lactobacillus casei and L. crispatus, respectively. Chicks supplemented with 'SMP52', 'SMP64', 'SMP70' and 'SMP64+SMP70' and a commercial probiotic product (Protexin) showed significantly higher mean weight gain per bird (1,584±35.2, 1,629±30.6, 1,668±34.7, 1,619±29.5 and 1,576±31.7 g/bird, respectively) as compared to negative control group (1,394±26.7 g/bird), on day 35. SMP 70 also showed significantly higher geometric mean titre against NDV vaccine at day 21 as compared to negative control. It is concluded that L. crispatus SMP52, L. casei SMP64 and L. crispatus SMP70 are potential probiotic candidates which alone or in different combinations may increase body weight of broilers.
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Affiliation(s)
- S Asghar
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - M Arif
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - M Nawaz
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - K Muhammad
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - M A Ali
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - M D Ahmad
- 2 Department of Epidemiology and Public Health, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - S Iqbal
- 3 Department of Food Science and Human Nutrition, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - A A Anjum
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - M Khan
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - J Nazir
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
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Awais M, Hayat T, Nawaz M, Alsaedi A. NEWTONIAN HEATING, THERMAL-DIFFUSION AND DIFFUSION-THERMO EFFECTS IN AN AXISYMMETRIC FLOW OF A JEFFERY FLUID OVER A STRETCHING SURFACE. Braz J Chem Eng 2015. [DOI: 10.1590/0104-6632.20150322s00001918] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- M. Awais
- COMSATS Institute of Information Technology, Pakistan
| | - T. Hayat
- Quaid-i-Azam University, Pakistan; King Abdulaziz University, Saudi Arabia
| | - M. Nawaz
- Institute of Space Technology, Pakistan
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Nawaz M, Ma C, Basra MAR, Wang J, Xu J. Amelioration of ovalbumin induced allergic symptoms in Balb/c mice by potentially probiotic strains of lactobacilli. Benef Microbes 2015; 6:669-78. [PMID: 25869278 DOI: 10.3920/bm2014.0141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To evaluate the antiallergic effect of newly characterised probiotic strains, Lactobacillus fermentum NWS29, Lactobacillus casei NWP08 and Lactobacillus rhamnosus NWP13, mice were divided into six experimental groups: control, ovalbumin (OVA), NWS29, NWP08, NWP13 and L. rhamnosus GG (LGG). Mice were immunised and probiotics were administered via oral gavage followed by challenge with OVA. After last challenge with OVA, inflammatory cells in bronchoalveolar lavage fluid (BALF), recruitment of inflammatory cells in airways and OVA-specific immunoglobulin E (IgE) in serum were determined by Giemsa, haematoxylin and eosin (HE) staining, and ELISA, respectively. Relative mRNA expression of interleukins (IL-4, IL-5, IL-10, IL-13 and IL-17), transforming growth factor-β (TGF-β) and interferon-γ (IFN-γ) in lung and spleen tissue was determined by real time RT-PCR. OVA-specific IgE levels, recruitment of eosinophils and mRNA expressions of inflammatory cytokines were remarkably increased in OVA-exposed mice compared with the control group. Administration of NWS29 and NWP13 suppressed inflammatory cell infiltration in airways and BALF, and level of OVA-specific IgE in serum of OVA-exposed mice. Furthermore, NWS29 and NWP13 also abrogated the mRNA expression of 1L-4, IL-5, IL-13 and TGF-β in mice immunised and exposed to OVA. Our findings suggest that NWS29 and NWP13 might be good candidates for the prevention of allergic airway inflammation.
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Affiliation(s)
- M Nawaz
- 1 Department of Microbiology, University of Veterinary and Animal Sciences, Out-Fall Road Lahore, 54000 Lahore, Pakistan
| | - C Ma
- 2 Center for Disease Control and Prevention of Xi'an, 710054 Xi'an, Shaanxi Province, China P.R
| | - M A R Basra
- 3 Department of Chemistry, University of the Punjab, 54590 Lahore, Pakistan
| | - J Wang
- 4 UCD Centre for Food Safety, School of Public Health, Physiotherapy and Population Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - J Xu
- 5 Department of Immunology and Pathogenic Biology, School of Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an, Shaanxi 710061, China P.R
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Haricharan RN, Nawaz M, Bettolli M, Ferretti E. Antenatal hemorrhage of a cervical lymphatic malformation presenting as a draining neck mass: An unusual presentation. J Neonatal Perinatal Med 2014; 7:81-4. [PMID: 24815710 DOI: 10.3233/npm-1474713] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lymphatic malformations in the neck can present as large fetal neck masses causing airway obstructions with potential perinatal demise and can pose a therapeutic challenge. We present a rare case of prenatally diagnosed large fetal neck mass with features of lymphatic malformation with intralesional hemorrhage of uncertain origin. Postnatal evaluation showed a complex cystic-solid lesion eroding through the skin with an open wound that made it clinically hard to differentiate from a teratoma. Given that malignancy could not be completely ruled out, surgery was favored. Final pathology showed a complex lymphatic malformation with intralesional hemorrhage, despite having no associated capillary, venous or arterial malformations.
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Affiliation(s)
- R N Haricharan
- Division of Pediatric Surgery, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
| | - M Nawaz
- Division of Neonatology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
| | - M Bettolli
- Division of Pediatric Surgery, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
| | - E Ferretti
- Division of Neonatology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
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Nawaz M, Hisaindee S, Graham J, Rauf M, Saleh N. Synthesis and spectroscopic properties of pyridones — Experimental and theoretical insight. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.12.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nawaz M, Arayne MS, Sultana N, Haider A, Hisaindee S. Simultaneous determination of fusidic acid and steroids from bulk drugs and human plasma by reversed phase HPLC. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Affiliation(s)
| | - M. Nawaz
- Institute of Space Technology, Pakistan
| | - T. Hayat
- Quaid-i-Azam University, Pakistan; King Abdulaziz University, Saudi Arabia
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Nawaz M, Han MY, Kim TI, Manzoor U, Amin MT. Silver disinfection of Pseudomonas aeruginosa and E. coli in rooftop harvested rainwater for potable purposes. Sci Total Environ 2012; 431:20-25. [PMID: 22664534 DOI: 10.1016/j.scitotenv.2012.05.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 04/30/2012] [Accepted: 05/07/2012] [Indexed: 06/01/2023]
Abstract
Rainwater harvesting being an alternate source in water scarce areas is becoming a common practice. Catchment contact, however, deteriorates the quality of rainwater making it unfit for potable purposes. To improve the quality of harvested rainwater, silver was used as antimicrobial agent in this study. Rainwater samples were taken from underground storage tank of a rooftop rainwater harvesting system installed in one of the buildings at Seoul National University, Seoul, South Korea. The target microorganisms (MOs) were Pseudomonas aeruginosa and Escherichia coli which were measured by using plate count method and standard MPN method, respectively. The efficiency of silver disinfection was evaluated at concentrations, ranging from 0.01 to 0.1 mg/l; the safe limit approved by WHO. The experiments were performed for 168 h with different time intervals to evaluate the parameters including inactivation rate, residual effect of silver and re-growth in both MOs at lower (i.e. 0.01-0.04 mg/l) as well as the higher concentrations of silver (i.e. 0.08-0.1 mg/l). Results showed the re-growth in both MOs was only in the case of lower concentrations of silver. The possible reason of re-growth at these concentrations of silver may be the halting of bacterial cell replication process for some time without permanent damage. The kinetics of this study suggest that higher inactivation and long term residual effect towards both MOs can be achieved with the application of silver at 0.08 mg/l or higher under safe limit.
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Affiliation(s)
- M Nawaz
- Alamoudi Water Chair, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
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Hussain B, Ahmed M, Nawaz M, Saleem M, Razzaq M, Aslam Zia M, Iqbal M. Simultaneous determination of thickness and refractive index based on time-of-flight measurements of terahertz pulse. Appl Opt 2012; 51:5326-5330. [PMID: 22858978 DOI: 10.1364/ao.51.005326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 06/20/2012] [Indexed: 06/01/2023]
Abstract
We present a simple technique for simultaneous determination of thickness and refractive index of plane-parallel samples in the terahertz radiation domain. The technique uses time-of-flight measurements of the terahertz pulse. It has been employed on nine different polymers and semiconductor materials, which are transparent for terahertz frequencies. Our results of thickness measurement are in good agreement with micrometer reading. The accuracy in the determination of refractive index is on the order of two decimal points.
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Affiliation(s)
- Babar Hussain
- National Institute of Lasers and Optronics, Nilore, Islamabad, Pakistan.
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Rauf M, Hisaindee S, Graham J, Nawaz M. Solvent effects on the absorption and fluorescence spectra of Cu(II)-phthalocyanine and DFT calculations. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.01.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Ullah I, Iram A, Iqbal MZ, Nawaz M, Hasni SM, Jamil S. Genetic diversity analysis of Bt cotton genotypes in Pakistan using simple sequence repeat markers. Genet Mol Res 2012; 11:597-605. [PMID: 22535395 DOI: 10.4238/2012.march.14.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The popularity of genetically modified insect resistant (Bt) cotton has promoted large scale monocultures, which is thought to worsen the problem of crop genetic homogeneity. Information on genetic diversity among Bt cotton varieties is lacking. We evaluated genetic divergence among 19 Bt cotton genotypes using simple sequence repeat (SSR) markers. Thirty-seven of 104 surveyed primers were found informative. Fifty-two primers selected on the basis of reported intra-hirsutum polymorphism in a cotton marker database showed a high degree of polymorphism, 56% compared to 13% for randomly selected primers. A total of 177 loci were amplified, with an average of 1.57 loci per primer, generating 38 markers. The amplicons ranged in size from 98 to 256 bp. The genetic similarities among the 19 genotypes ranged from 0.902 to 0.982, with an average of 0.947, revealing a lack of diversity. Similarities among genotypes from public sector organizations were higher than genotypes developed by private companies. Hybrids were found to be more distant compared to commercial cultivars and advanced breeding lines. Cluster analysis grouped the 19 Bt cotton genotypes into three major clusters and two independent entries. Cultivars IR-3701, Ali Akbar-802 and advanced breeding line VH-259 grouped in subcluster B2, with very narrow genetic distances despite dissimilar parentage. We found a very high level of similarity among Pakistani-bred Bt cotton varieties, which means that genetically diverse recurrent parents should be included to enhance genetic diversity. The intra-hirsutum polymorphic SSRs were found to be highly informative for molecular genetic diversity studies in these cotton varieties.
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Affiliation(s)
- I Ullah
- Agricultural Biotechnology Research Institute, Faisalabad, Pakistan.
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Zhou A, Nawaz M, Xue X, Karakousis PC, Yao Y, Xu J. Molecular genotyping of Mycobacterium tuberculosis in Xi'an, China, using MIRU-VNTR typing. Int J Tuberc Lung Dis 2011; 15:517-22. [PMID: 21396212 DOI: 10.5588/ijtld.10.0495] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The molecular genotyping of Mycobacterium tuberculosis is expected to lead to a better understanding of M. tuberculosis transmission in Xi'an, one of the largest cities in Western China. OBJECTIVE To characterize the population of M. tuberculosis strains circulating in Xi'an and to evaluate the feasibility of the mycobacterial interspersed repetitive units-variable number of tandem repeats (MIRU-VNTR) typing method. DESIGN A total of 195 M. tuberculosis clinical isolates from Xi'an were genotyped using spoligotyping and MIRU-VNTR. RESULTS Thirty-two different genotypes were identified by spoligotyping, with the Beijing family identified as the largest lineage (84.6%), followed by the T1 (3.08%), T2 (1.54%), H3 (1.03%) and U (1.03%) families. The Hunter-Gaston discriminatory index (HGDI) of spoligotyping is low (HGDI = 0.392). In contrast, 15-locus MIRU-VNTR shows a higher discriminatory power (HGDI = 0.998) than 12-locus MIRU-VNTR (HGDI = 0.948). By replacing the ETR C locus with the MIRU39 locus, the discriminatory power of 15-locus MIRU-VNTR is increased to 0.999. CONCLUSIONS The Beijing family accounts for the vast majority of M. tuberculosis isolates in Xi'an, China. The modified 15-locus MIRU-VNTR showed high HGDI and can be used as a first-line genotyping method in combination with spoligotyping in routine epidemiological investigations in Xi'an, China.
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Affiliation(s)
- A Zhou
- Department of Immunology and Pathogenic Biology, School of Medicine, Xi'an Jiao Tong University, Xi'an, China
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Nawaz M, Arayne MS, Sultana N. Simultaneous determination of cefpirome, cefaclor, ceftazidime, and cephradine in pharmaceutical formulations by reversed phase HPLC. ACTA CHROMATOGR 2011. [DOI: 10.1556/achrom.23.2011.2.2] [Citation(s) in RCA: 5] [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: 11/19/2022]
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Nawaz M. Pharmacokinetics and dosage of sulphanilamide in sheep. Zentralbl Veterinarmed A 2010; 28:552-8. [PMID: 6805167 DOI: 10.1111/j.1439-0442.1981.tb01226.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Abstract
The binding of digoxin to proteins in plasma and milk was about 20% lower after the addition of the drug to plasma and milk (in vitro) than its binding in plasma and milk from animals administered digoxin parenterally. The mammary excretion of digoxin was examined in the experiments on goats. The concentration of non-protein-bound digoxin in milk was slightly lower than the concentration of non-protein-bound in plasma suggesting a passive diffusion. The amount of digoxin excreted with the milk per day should be far below the dose usually recommended for a newborn child.
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Arayne MS, Sultana N, Nawaz M. Simultaneous quantification of cefpirome and cetirizine or levocetirizine in pharmaceutical formulations and human plasma by RP-HPLC. J Anal Chem 2008. [DOI: 10.1134/s1061934808090153] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Babar ME, Nawaz M, Nasim A, Abdullah M, Imran M, Jabeen R, Chatha SA, Haq AU, Nawaz A, Mustafa H, Nadeem A. Prion Protein Genotypes in Pakistani Goats. Asian Australas J Anim Sci 2008. [DOI: 10.5713/ajas.2008.70493] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Arayne MS, Sultana N, Nawaz M. A rp-HPLC method for the assay of cefpirome and its application in drug-metal interaction studies. Pak J Pharm Sci 2006; 19:39-44. [PMID: 16632451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
An accurate, sensitive and least time consuming RP-HPLC method for the estimation of cefpirome in the presence of essential and trace metal has been developed and validated. Cefpirome was eluted from a B144A, OD-5-100, C(18) (150 x 4.6 mm) column at room temperature with a mobile phase consisting of MeOH:H2O (15:85, % v/v) at a flow rate of 1 ml/minute, while UV detection was performed at 265 nm. The detection limit of cefpirome was 10 ng. Drug metal interaction studies were carried out at 37 degrees C to monitor the complexation of drug with metal ions. These studies were beneficial to determine the drug in therapeutic concentrations inside human body as well as its complexation with metal cations. The metals essential to human body like Mg(II), Ca(II), Cr(II), Mn(II), Fe (III), Co(II), Ni(II), Cu(II), Zn(II) & Cd(II) were in the form of chlorides. The carboxylic group of the dehydrothiazine ring has more binding capacity relative to other group that augments the drug complexes with essential and trace elements. The established HPLC method is rapid, accurate, and selective, because of its sensitivity and reproducibility. The order of complexation was ferric>chromium>copper>nickel>cadmium>zinc>magnesium>manganese>calcium>cobalt.
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Affiliation(s)
- M Saeed Arayne
- Department of Chemistry, University of Karachi, Karachi-75270, Pakistan.
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Nawaz M, Manzl C, Krumschnabel G. In vitro toxicity of copper, cadmium, and chromium to isolated hepatocytes from carp, Cyprinus carpio L. Bull Environ Contam Toxicol 2005; 75:652-61. [PMID: 16400544 DOI: 10.1007/s00128-005-0802-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2005] [Accepted: 08/02/2005] [Indexed: 05/06/2023]
Affiliation(s)
- M Nawaz
- Department of Zoology and Limnology, University of Innsbruck, and Center for Molecular Biosciences Innsbruck (CMBI), Technikerstrasse 25, A-6020, Innsbruck, Austria
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Salahudeen A, Nawaz M, Poovala V, Kanji V, Wang C, Morrow J, Roberts J. Cold storage induces time-dependent F2-isoprostane formation in renal tubular cells and rat kidneys. Kidney Int 1999; 55:1759-62. [PMID: 10231438 DOI: 10.1046/j.1523-1755.1999.00390.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Previous findings suggest a possible role for free radicals in cold-storage-associated tissue injury. Because free radical-induced lipid peroxidation catalyzes the cyclooxygenase-independent formation of vasoconstrictive F2-isoprostanes, the hypothesis that isoprostanes are produced during cold storage was tested in this study. METHODS Total isoprostanes (free and esterified) in renal tubular epithelial (LLC-PK1) cells or whole kidneys, subjected to cold storage, were quantitated employing the gas chromatographic-mass spectroscopic method. LLC-PK1 cells were stored at 4 degrees C in a University of Wisconsin (UW) solution for 0, 24, 48, and 72 hours or 48 hours with desferrioxamine (DFO) or the lazaroid compound 2-methyl aminochroman (2-MAC). In the rat model, kidneys were perfused and stored for 48 hours in the UW solution with or without added DFO or 2-MAC. RESULTS Isoprostanes in LLC-PK1 cells increased by fivefold following 24 hours of cold storage (36 +/- 2 pg/well to 185 +/- 6, mean +/- SE, following 24 hours of cold storage, P < 0.0001), and the levels continued to increase significantly at 48 and 72 hours. DFO and 2-MAC caused significant suppression of isoprostane formation. Cold storage of the kidneys in UW solution for 48 hours was accompanied by an eightfold increase in isoprostanes compared with control kidneys not subjected to cold storage (25.0 +/- 3.0 vs. 2.9 +/- 0.1 ng/g, P < 0.0001). The addition of 2-MAC or DFO to the UW solution was associated with a near complete suppression of 48-hour cold-induced isoprostane formation. CONCLUSION Our findings provide evidence for the formation of large quantities of antioxidant-suppressible isoprostanes in kidney cells and whole kidney during cold-preservation. Based on this, it is hypothesized that (a) isoprostanes, which are potent renal vasoconstrictors, may contribute to immediate post-transplant vasoconstriction and dysfunction in kidneys subjected to extended cold storage, and that (b) the addition of 2-MAC or DFO to a UW solution in such circumstances may attenuate these alterations partly by suppressing isoprostane formation.
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Affiliation(s)
- A Salahudeen
- Department of Medicine, University of Mississippi Medical Center, Jackson, USA.
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Nawaz M, Khan MA, Qureshi MA, Rasool E. Productive and Reproductive Performance of Kajli and Lohi Ewes. Asian Australas J Anim Sci 1999. [DOI: 10.5713/ajas.1999.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rasool E, Khan MF, Nawaz M, Rafiq M. Utilization of sunflower crop residues as feed in small ruminants. Asian Australas J Anim Sci 1998. [DOI: 10.5713/ajas.1998.272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Qureshi MA, Nawaz M, Khan MA. Lifetime production of Kajli ewes at Khushab and Khizerabad : Reproduction and lamb production as affected by ewe longevity. Asian Australas J Anim Sci 1997. [DOI: 10.5713/ajas.1997.408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nawaz M, Crook E, Bower J, Salahudeen A. Spinal abscess with cord compression complicating infected subclavian cannula. Nephrol Dial Transplant 1997; 12:842. [PMID: 9141033 DOI: 10.1093/ndt/12.4.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- M Nawaz
- University of Mississippi Medical Center, Jackson 39216-4505, USA
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Nawaz M, Anwar M, Mirza MA, Nawaz R. Study of comparative milk production and reproduction of jersey cattle under USA and Pakistan conditions. Asian Australas J Anim Sci 1993. [DOI: 10.5713/ajas.1993.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Malik IA, Bukhtiari N, Good MJ, Iqbal M, Azim S, Nawaz M, Ashraf L, Bhatty R, Ahmed A. Mothers' fear of child death due to acute diarrhoea: a study in urban and rural communities in northern Punjab, Pakistan. Soc Sci Med 1992; 35:1043-53. [PMID: 1411699 DOI: 10.1016/0277-9536(92)90244-k] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The investigation of cultural models of diarrhoeal illness which are employed by mothers and their emotional responses to children's illnesses is presented in a study of 595 households in urban and rural communities in Punjab, Pakistan. The household survey of mothers of children 0-36 months was complemented with in-depth interviews of a subsample of 70 mothers. Findings indicate that diarrhoea must be regarded not only as a disease but as a symptom belonging to several popular illness categories. Mothers' emotional responses to symptoms are in part shaped by the illness categories to which they assign a child's diarrhoea episode, and maternal fears that symptoms of diarrhoea may be life threatening are associated with previous experiences with death of children, with treatment choices and help-seeking. A significantly higher proportion of mothers who fear diarrhoea to be life threatening to their children than mothers with other concerns choose to use NIMKOL, the Pakistan ORS. The necessity of recognizing the complexity of interpretive and emotional processes which shape the care of children and the home treatment of childhood disease is emphasized.
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Affiliation(s)
- I A Malik
- Pakistan Medical Research Council and Army Medical College, Rawalpindi, Pakistan
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Nawaz M, Meyer HH, Jadoon JK, Naqvi MA. Results from adaptability trial of Rambouillet sheep and their crossbreeding with Kaghanis. Effects on ewe mating weight, wool production, litter size and lamb growth. Asian Australas J Anim Sci 1992. [DOI: 10.5713/ajas.1992.481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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