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Usman S, Anjum A, Usman M, Imran MS, Ali M, Moustafa M, Rehman MS, Hussain T, Sarwar F, Azad A, Hussain I, Naseer J, Tiwana U, Hafeez S. Antibiotic resistance pattern and pathological features of avian pathogenic Escherichia coli O78:K80 in chickens. BRAZ J BIOL 2024; 84:e257179. [DOI: 10.1590/1519-6984.257179] [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: 10/11/2021] [Accepted: 05/06/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Avian pathogenic Escherichia coli (APEC) induces colibacillosis, an acute and systemic disease, resulting in substantial economic losses in the poultry sector. This study aimed to investigate the antibiotic resistance pattern associated with frequent virulence gene distribution in APEC O78:K80 that may cause pathological alterations in chickens. The antibiogram profile showed high resistance to erythromycin, chloramphenicol, tetracycline, ampicillin, and co-trimoxazole, followed by intermediate resistance to ciprofloxacin, levofloxacin, enrofloxacin, norfloxacin, nitrofurantoin, and doxycycline hydrochloride, and sensitive to amikacin, streptomycin, gentamicin, and colistin. Virulence gene distribution identifies eight (irp-2, iutA, ompT, iss, iucD, astA, hlyF, iroN) genes through a conventional polymerase chain reaction. APEC O78:K80 caused significantly high liver enzyme concentrations, serum interleukin-6 and tumor necrosis factor-alpha levels in experimental birds. Also, infected birds have hypoproteinemia, hypoalbuminemia, and hyperglobulinemia. Necropsy examination revealed fibrinous perihepatitis and pericarditis, congested lungs, intestinal ecchymotic hemorrhages and necrotizing granulomatosis of the spleen. Histopathological examination depicted hepatocellular degeneration, myocardial necrosis, interstitial nephritis, intestinal hemorrhages and lymphopenia in the spleen. This study is the first evidence to assess the antibiotic resistance profile linked with virulence genes and clinicopathological potential of APEC O78:K80 in chickens in Pakistan, which could be a useful and rapid approach to prevent and control the disease by developing the control strategies.
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Affiliation(s)
- S. Usman
- University of Veterinary and Animal Sciences, Pakistan
| | - A. Anjum
- Muhammad Nawaz Shareef University of Agriculture Multan, Pakistan
| | - M. Usman
- University of Veterinary and Animal Sciences, Pakistan
| | - M. S. Imran
- University of Veterinary and Animal Sciences, Pakistan
| | - M. Ali
- BZU Bahadur sub campus Layyah, Pakistan
| | - M. Moustafa
- King Khalid University; South Valley University, Egypt
| | | | - T. Hussain
- The Islamia University of Bahawalpur, Pakistan
| | - F. Sarwar
- Poultry Research Institute, Pakistan
| | - A. Azad
- Poultry Research Institute, Pakistan
| | | | - J. Naseer
- The Islamia University of Bahawalpur, Pakistan
| | - U. Tiwana
- Range Land Research Institute, Pakistan
| | - S. Hafeez
- University of Agriculture Faisalabad, Pakistan
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Imbabi T, Hassan A, Ahmed-Farid O, El-Garhy O, Sabeq I, Moustafa M, Mohammadein A, Hassan N, Osman A, Sitohy M. Corrigendum to "Supplementing rabbit diets with butylated hydroxyanisole affects oxidative stress, growth performance, and meat quality" [Animal 15(9) (2021) 100339]. Animal 2023; 17:100859. [PMID: 37451744 DOI: 10.1016/j.animal.2023.100859] [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: 07/18/2023] Open
Affiliation(s)
- T Imbabi
- Animal Production Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - A Hassan
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - O Ahmed-Farid
- Department of Physiology, National Organization for Drug Control and Research, Giza 12553, Egypt
| | - O El-Garhy
- Animal Production Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - I Sabeq
- Department of Food Hygiene, Faculty of Veterinary Medicine, Benha University, Moshtohor 13736, Egypt
| | - M Moustafa
- Genetics and Genetic Engineering Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt(1)
| | - A Mohammadein
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - N Hassan
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - A Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - M Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
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Imbabi T, El-Garhy O, Moustafa M, Sabeq I, Osman A, Sitohy M, Refaat M, Samir A, Abdel Moneim U, El-Badawy M, Abbass A. Author reply to the expression of concern on "Supplementing rabbit diets with butylated hydroxyanisole affects oxidative stress, growth performance, and meat quality" [Animal 16(9) (2021) 100339]. Animal 2023:100868. [PMID: 37357091 DOI: 10.1016/j.animal.2023.100868] [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: 06/27/2023] Open
Affiliation(s)
- T Imbabi
- Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - O El-Garhy
- Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - M Moustafa
- Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - I Sabeq
- Faculty of Veterinary Medicine, Benha University, Moshtohor 13736, Egypt
| | - A Osman
- Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - M Sitohy
- Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - M Refaat
- Vice-Dean for Postgraduate and Research Affairs & Ethics Committees, Benha University, Moshtohor 13736, Egypt
| | - A Samir
- Vice-Dean for Postgraduate and Research Affairs, Benha University, Moshtohor 13736, Egypt
| | - U Abdel Moneim
- Dean of Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - M El-Badawy
- Dean of Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - A Abbass
- Dean of Faculty of Veterinary Medicine, Benha University, Moshtohor 13736, Egypt
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Weber U, Tinganelli W, Sokol O, Quartieri M, Puspitasari A, Dokic I, Abdollahi A, Durante M, Haberer T, Debus J, Boscolo D, Voss B, Brons S, Moustafa M, Schuy C, Baack L, Horst F, Zink K, Simeonov Y. FLASH Modalities Track (Oral Presentations) ULTRA-HIGH DOSE RATE (FLASH) CARBON ION IRRADIATION: FIRST IN VITRO AND IN VIVO RESULTS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01510-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abouhaswa AS, Badr MH, Nasr MH, Elkholy MM, El-Deen LMS, Turky GM, Moustafa M, EL-Hamalawy AA. Investigation of Crystal Structure, Electrical and Magnetic Properties of Spinel Mn-Cd Ferrite Nanoparticles. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02116-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Imbabi T, Hassan A, Ahmed-Farid O, El-Garhy O, Sabeq I, Moustafa M, Mohammadein A, Hassan N, Osman A, Sitohy M. Supplementing rabbit diets with butylated hydroxyanisole affects oxidative stress, growth performance, and meat quality. Animal 2021; 15:100339. [PMID: 34425485 DOI: 10.1016/j.animal.2021.100339] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/18/2021] [Accepted: 07/22/2021] [Indexed: 11/19/2022] Open
Abstract
Butylated hydroxyanisole (BHA) is a synthetic antioxidant analogous of vitamin E. It is used as a preservative to prevent free radical-mediated oxidation in high-fat foods, and this study's objective was to investigate the effects of BHA on oxidative stress and apoptosis in addition to delineating its efficacy as a growth-promoting feed additive. 60 weaned male rabbits (V-line) were randomly divided into four equal groups: BHA0.0 (control), BHA50, BHA100, and BHA150, administered basal diets with 0.0, 50, 100, and 150 mg BHA/kg of feed for 60 days. Animals were examined for growth performance, markers of oxidative stress and apoptosis, and meat characteristics. Compared to the control group, rabbits receiving BHA-supplemented diets exhibited increases in BW and average daily gain (P < 0.01), where BHA50 and BHA100 groups showed increased muscle content of methionine aspartic acid, serine, and glutamine (P < 0.05). These two groups also exhibited elevated catalase and superoxide dismutase activities and diminished malondialdehyde levels in the liver. Butylated hydroxyanisole upregulated fatty acid synthase gene (FASN), especially in BHA100 animals. Bcl-2-associated X/B-celllymphoma-2 (Bax/Bcl-2) ratio significantly increased in animals receiving higher doses of BHA, and the weight of the liver significantly increased following BHA treatment. Supplementing growing rabbits with lower doses of dietary BHA may promote growth performance and meat quality via maintaining the redox balance. Hence, the 50-100 mg/kg may be recommended as a safe and still effective feed additive as well as an oxidative stress attenuator.
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Affiliation(s)
- T Imbabi
- Animal Production Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - A Hassan
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - O Ahmed-Farid
- Department of Physiology, National Organization for Drug Control and Research, Giza 12553, Egypt
| | - O El-Garhy
- Animal Production Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - I Sabeq
- Department of Food Hygiene, Faculty of Veterinary Medicine, Benha University, Moshtohor 13736, Egypt
| | - M Moustafa
- Genetics and Genetic Engineering Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt(1)
| | - A Mohammadein
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - N Hassan
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - A Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - M Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
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Moustafa M, Wally MA, Abdou AA, Abd El Wahed AH. Effect of different irrigation levels on growth, yield and pods quality of green bean (Phaseolus vulgaris L.) under greenhouse conditions. Al-Azhar Journal of Agricultural Research 2021; 46:43-53. [DOI: 10.21608/ajar.2021.218200] [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: 09/02/2023]
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Klein C, Schlegel J, Knoll M, Dokic I, Moustafa M, Mairani A, Brons S, Zimmermann A, Zenke F, Blaukat A, Debus J, Abdollahi A. Trimodal Therapy Consisting of DNA-PK Inhibition, PD-L1 Immune Checkpoint Blockade and Radiotherapy with Carbon Ions. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.916] [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: 11/17/2022]
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Furkel J, Hasheminasab S, Moustafa M, Kriegsmann K, Schlegel J, Zhou C, Kriegsmann M, Debus J, Knoll M, Abdollahi A. Single Cell Transcriptomics Based Deconvolution Of Radiation Induced Lung Fibrosis (RILF) Model. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moustafa M, Lipson K, Akbarpour M, Fouse S, Kriegsmann M, Zhou C, Kriegsmann K, Weichert W, Seeley T, Kouchakji E, Debus J, Abdollahi A. Late Intervention with Radiation-Induced Lung Fibrosis - Comparing Pamrevlumab Anti-CTGF Therapy vs. Pirfenidone vs. Nintedanib as Mono-, Dual- and Triple-therapy Combinations. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2222] [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: 11/26/2022]
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Dokic I, Klein C, Moustafa M, Meister S, Mein S, Kopp B, Tessonnier T, Hasheminasab S, Wei Q, Schlegel J, Nowrouzi A, Schwager C, Mairani A, Zimmermann A, Zenke F, Blaukat A, Debus J, Abdollahi A. Efficient Eradication of NSCLC by Combined DNAPK Inhibition and Carbon Ion Radiotherapy via Modulation of Tumor Invasion and Microenvironment - Beyond Direct Radiosensitization. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li J, Moustafa M, Meiners J, Stüben O, Izbicki J, Heumann A. ASO Author Reflections: Optimizing the Oncological Outcome for Locally Advanced Intrahepatic Cholangiocarcinoma. Ann Surg Oncol 2020; 27:1385-1386. [PMID: 32124123 PMCID: PMC7138768 DOI: 10.1245/s10434-020-08274-3] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Indexed: 11/18/2022]
Affiliation(s)
- Jun Li
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - M Moustafa
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - J Meiners
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - O Stüben
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - J Izbicki
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - A Heumann
- Department of General, Visceral and Thorax Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
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Moustafa M, Fasolo E, Bassi D, D'amico FE, Gringeri E, Pawlik TM, Cillo U. The impact of liver resection on survival for locally advanced intrahepatic cholangiocarcinoma tumors: A propensity score analysis. Eur J Surg Oncol 2019; 46:632-637. [PMID: 31812289 DOI: 10.1016/j.ejso.2019.11.502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 11/11/2019] [Accepted: 11/15/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Aim of work was to investigate the prognostic impact of liver resection (LR) on locally advanced Intrahepatic Cholangiocarcinoma (IC) in comparison to alternative palliative chemotherapy (CTx). METHOD A retrospective cohort study performed utilizing Surveillance, Epidemiology, and End Results (SEER) database to identify Locally advanced IC patients. Based on the American Joint Committee on Cancer (AJCC) Staging System, locally advanced IC was defined as: Stage III and IVa - 7th edition (7th-ed) or stage III - 8th edition (8th-ed). Study population were sub-classified into: LR group and a propensity score (PS) matched CTx group. RESULTS In 7th-ed module, the median survival for LR group (n = 154) was 35 months, and the 3-year survival rate was 40.8%. In PS matched CTx group (n = 154); the median survival was 14 months and the 3-year survival rate was 5.5% (P = 0.007). Survival rates were superior for LR group over PS matched CTx group in 8th-ed module as well. Worse prognosis has been reported in LR patients above 65 years old (HR 2.618, P = 001) and in multifocal lesions (HR 1.890, P = 0.025). CONCLUSION Hepatic resection was associated with a favorable impact on prognosis over chemotherapy for IC stage III and IVa of the 7th edition and for stage IIIb of 8th edition of AJCC staging system. Worse outcome has been observed in LR patients >65 years and with multifocal lesions. Randomized control studies are recommended to confirm the role of surgical resection in the management for advanced cases of IC, and to clarify the related prognostic factors.
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Conforti A, Marci R, Moustafa M, Tsibanakos I, Krishnamurthy G, Alviggi C, Pagano T, Staiano S, Mollo A, De Placido G, Magos A. Surgery and out-patient data collection and reporting using Filemaker Pro. Eur Rev Med Pharmacol Sci 2019; 22:2918-2922. [PMID: 29863232 DOI: 10.26355/eurrev_201805_15045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The application of an electronic database in clinical practice is used widespread in every field of medicine. The aim of the present study is to illustrate our experience to use a database software for documentation of two of our clinical activities, outpatient hysteroscopy and inpatient gynaecological surgery. PATIENTS AND METHODS In 2004, we designed two databases, the first one to document surgical procedures in the operating theatre, the second to document outpatient hysteroscopy procedures using FileMaker v.8.5. The data entry interface contains free text fields for patient demographic data and the description of the surgical procedure, supplemented by drop-down lists for items such as clinical findings, procedures, instrumentation, technique, and complications. Copies were filed in the main hospital notes, sent to General Practitioners, and also given to our patients. RESULTS Since August 2004, we have used our two databases to document 2766 gynaecological operations and 3777 outpatient hysteroscopies. All users particularly liked the dropdown lists as their use greatly reduced the time taken to enter each patient's data. The databases were regularly used to select patients for audit projects and research data collection for prospective studies. CONCLUSIONS FileMaker is an user-friendly and easily configured software, extremely valuable in everyday clinical work.
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Affiliation(s)
- A Conforti
- Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, Naples, Italy.
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Karimian N, Moustafa M, Mata J, Al-Saffar AK, Hellström PM, Feldman LS, Carli F. The effects of added whey protein to a pre-operative carbohydrate drink on glucose and insulin response. Acta Anaesthesiol Scand 2018; 62:620-627. [PMID: 29377065 DOI: 10.1111/aas.13069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/29/2017] [Accepted: 12/12/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND Pre-operative complex carbohydrate (CHO) drinks are recommended to attenuate post-operative insulin resistance. However, many institutions use simple CHO drinks, which while convenient, may have less metabolic effects. Whey protein may enhance insulin release when added to complex CHO. The aim of this study was to compare the insulin response to simple CHO vs. simple CHO supplemented with whey protein. METHODS Twelve healthy volunteers participated in this double-blinded, within subject, cross-over design study investigating insulin response to simple CHO drink vs. simple CHO + whey (CHO + W) drink. The primary outcome was the accumulated insulin response during 180 min after ingestion of the drinks (Area under the curve, AUC). Secondary outcomes included plasma glucose and ghrelin levels, and gastric emptying rate estimated by acetaminophen absorption technique. Data presented as mean (SD). RESULTS There was no differences in accumulated insulin response after the CHO or CHO + W drinks [AUC: 15 (8) vs. 20 (14) nmol/l, P = 0.27]. Insulin and glucose levels peaked between 30 and 60 min and reached 215 (95) pmol/l and 7 (1) mmol/l after the CHO drink and to 264 (232) pmol/l and 6.5 (1) mmol/l after the CHO + W drink. There were no differences in glucose or ghrelin levels or gastric emptying with the addition of whey. CONCLUSION The addition of whey protein to a simple CHO drink did not change the insulin response in healthy individuals. The peak insulin responses to simple CHO with or without whey protein were lower than that previously reported with complex CHO drinks. The impact of simple carbohydrate drinks with lower insulin response on peri-operative insulin sensitivity requires further study.
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Affiliation(s)
- N. Karimian
- Experimental Surgery; McGill University; Montreal QC Canada
| | - M. Moustafa
- Department of Anesthesia; McGill University; Montreal QC Canada
| | - J. Mata
- Department of Surgery; McGill University; Montreal QC Canada
| | - A. K. Al-Saffar
- Department of Medical Sciences; Gastroenterology and Hepatology Unit; Uppsala University; Uppsala Sweden
| | - P. M. Hellström
- Department of Medical Sciences; Gastroenterology and Hepatology Unit; Uppsala University; Uppsala Sweden
| | - L. S. Feldman
- Department of Surgery; McGill University; Montreal QC Canada
| | - F. Carli
- Department of Anesthesia; McGill University; Montreal QC Canada
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Moustafa M, Tarek T, Elnouby M, El-Deeb N, Hamad G, Abu-Saied M, Alrumman S. Potential detoxification of aflatoxin B2 using Kluyveromyces lactis and Saccharomyces cerevisiae integrated nanofibers. BIOCELL 2018. [DOI: 10.32604/biocell.2017.00067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Moustafa M, Taha T, Elnouby M, Abu-Saied Aied M, Shati A, Al-Kahtani M, Alrummani. S. Feasible design for electricity generation from Chlorella vulgaris using convenient photosynthetic conditions. BIOCELL 2018. [DOI: 10.32604/biocell.2018.07002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Al-Aamri I, Derzi SH, Moore A, Elgueta MF, Moustafa M, Schricker T, Tran DQ. Reliability of pressure waveform analysis to determine correct epidural needle placement in labouring women. Anaesthesia 2017; 72:840-844. [PMID: 28419420 DOI: 10.1111/anae.13872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2017] [Indexed: 11/30/2022]
Abstract
Pressure waveform analysis provides a reliable confirmatory adjunct to the loss-of-resistance technique to identify the epidural space during thoracic epidural anaesthesia, but its role remains controversial in lumbar epidural analgesia during labour. We performed an observational study in 100 labouring women of the sensitivity and specificity of waveform analysis to determine the correct location of the epidural needle. After obtaining loss-of-resistance, the anaesthetist injected 5 ml saline through the epidural needle (accounting for the volume already used in the loss-of-resistance). Sterile extension tubing, connected to a pressure transducer, was attached to the needle. An investigator determined the presence or absence of a pulsatile waveform, synchronised with the heart rate, on a monitor screen that was not in the view of the anaesthetist or the parturient. A bolus of 4 ml lidocaine 2% with adrenaline 5 μg.ml-1 was administered, and the epidural block was assessed after 15 min. Three women displayed no sensory block at 15 min. The results showed: epidural block present, epidural waveform present 93; epidural block absent, epidural waveform absent 2; epidural block present, epidural waveform absent 4; epidural block absent, epidural waveform present 1. Compared with the use of a local anaesthetic bolus to ascertain the epidural space, the sensitivity, specificity, positive and negative predictive values of waveform analysis were 95.9%, 66.7%, 98.9% and 33.3%, respectively. Epidural waveform analysis provides a simple adjunct to loss-of-resistance for confirming needle placement during performance of obstetric epidurals, however, further studies are required before its routine implementation in clinical practice.
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Affiliation(s)
- I Al-Aamri
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - S H Derzi
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - A Moore
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - M F Elgueta
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - M Moustafa
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - T Schricker
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
| | - D Q Tran
- Department of Anaesthesia, Montreal General Hospital, McGill University Health Centre, Montreal, Canada
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Moustafa M, Chiblak S, Lipson K, Wei Q, Brons S, Haberer T, Weichert W, Debus J, Abdollahi A. Combined Inhibition of CTGF-Signaling and Radiation Therapy in Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pinto RM, Michos G, Papageorgiou G, Halmos G, Moustafa M, Magos A. Incidence of unplanned oophorectomy at laparoscopic ovarian cystectomy for clinically benign cysts. J OBSTET GYNAECOL 2014; 34:718-20. [PMID: 24922340 DOI: 10.3109/01443615.2014.925432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 11/13/2022]
Abstract
Laparoscopic surgery is the preferred approach in women with ovarian cysts and a low risk of malignancy, and the aim in young women should be to preserve the ovary. We are not aware of any data on the success of conservative surgery in preserving the affected ovary and this is the reason why we decided to investigate the incidence of unplanned oophorectomy, when a woman is originally scheduled for laparoscopic ovarian cystectomy for clinically benign cysts. We reviewed the medical notes of the 123 women who underwent surgery for clinically benign ovarian cysts between November 2004 and May 2012. The operative procedures performed were ovarian cystectomies (n = 119), salpingo-oophorectomy (n = 2) and fenestration (n = 2). In total, 61 women underwent a concomitant procedure. In our study, we found that planned laparoscopic cystectomy was mostly successful, with only 1.6% of patients in our series requiring unplanned oophorectomy.
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Affiliation(s)
- R M Pinto
- University Department of Obstetrics and Gynaecology, Royal Free Hospital , London , UK
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Mehrez, A, Moustafa M, Shamiah S, Abd El Raouf N. IN VITRO AND IN VIVO OVULATORY RESPONSE OF RABBIT DOES TREATED WITH GnRH OR PMSG. Journal of Animal and Poultry Production 2014; 5:279-291. [DOI: 10.21608/jappmu.2014.69557] [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: 09/02/2023]
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22
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Moustafa M, Demircioglu F, Melzig C, Chiblak S, Combs S, Debus J, Abdollahi A. Comparison of Photon Versus Carbon Irradiation in Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1832] [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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Dacco' MD, Serranito A, Petrakis P, Mohamed M, Moustafa M, Tsimpanakos I, Magos A. A new technique to biopsy both horns in a septate or bicornuate uterus. J OBSTET GYNAECOL 2011; 32:100-1. [PMID: 22185551 DOI: 10.3109/01443615.2011.621559] [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: 11/13/2022]
Affiliation(s)
- M D Dacco'
- Minimally Invasive Therapy Unit and Endoscopy Training Centre, University Department of Obstetrics and Gynaecology, The Royal Free Hospital, London, UK.
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Affiliation(s)
- I Tsimpanakos
- Minimally Invasive Therapy Unit and Endoscopy Training Centre, University Department of Obstetrics and Gynaecology, Royal Free Hospital, London, UK.
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Magos A, Al-Shabibi N, Korkontzelos I, Gkioulekas N, Tsibanakos I, Gkoutzioulis A, Moustafa M. Ovarian artery clamp: Initial experience with a new clamp to reduce bleeding at open myomectomy. J OBSTET GYNAECOL 2011; 31:73-6. [DOI: 10.3109/01443615.2010.529964] [Citation(s) in RCA: 6] [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: 11/13/2022]
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Tsimpanakos I, Gkoutzioulis A, Moustafa M, Mohamed M, Magos A. Vaginoscopic approach to outpatient hysteroscopy: a systematic review of the effect on pain. BJOG 2010; 117:1163-4; author reply 1164. [DOI: 10.1111/j.1471-0528.2010.02615.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Raggi P, Chertow G, Block G, Urena P, Csiky B, Naso A, Nossuli K, Moustafa M, Goodman W, Lopez N, Downey G, Dehmel B, Floege J. 242: A Randomized Controlled Trial to Evaluate the Effects of Cinacalcet Plus Low-Dose Vitamin D on Vascular Calcification in Hemodialysis Patients. Am J Kidney Dis 2010. [DOI: 10.1053/j.ajkd.2010.02.249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Floege J, Raggi P, Block GA, Torres PU, Csiky B, Naso A, Nossuli K, Moustafa M, Goodman WG, Lopez N, Downey G, Dehmel B, Chertow GM. Study design and subject baseline characteristics in the ADVANCE Study: effects of cinacalcet on vascular calcification in haemodialysis patients. Nephrol Dial Transplant 2010; 25:1916-23. [DOI: 10.1093/ndt/gfp762] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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29
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Hofmann W, Morawska L, Winkler-Heil R, Moustafa M. Deposition of combustion aerosols in the human respiratory tract: comparison of theoretical predictions with experimental data considering nonspherical shape. Inhal Toxicol 2010; 21:1154-64. [PMID: 19827973 DOI: 10.3109/08958370902806696] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Total deposition of petrol and diesel combustion aerosols and environmental tobacco smoke (ETS) particles in the human respiratory tract for nasal breathing conditions was computed for 14 nonsmoking volunteers, considering the specific pulmonary function parameters of each volunteer and the specific size distribution for each inhalation experiment. Theoretical predictions were 34.6% for petrol smoke, 24.0% for diesel smoke, and 18.5% for ETS particles. Compared to the experimental results, predicted deposition values were consistently smaller than the measured data (41.4% for petrol smoke, 29.6% for diesel smoke, and 36.2% for ETS particles). The apparent discrepancy between experimental data on total deposition and modeling results may be reconciled by considering the nonspherical shape of the test aerosols by diameter-dependent dynamic shape factors to account for differences between mobility-equivalent and volume-equivalent or thermodynamic diameters. While the application of dynamic shape factors is able to explain the observed differences for petrol and diesel combustion particles, additional mechanisms may be required for ETS particle deposition, such as the size reduction upon inspiration by evaporation of volatile compounds and/or condensation-induced restructuring, and, possibly, electrical charge effects.
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Affiliation(s)
- W Hofmann
- Division of Physics and Biophysics, Department of Materials Engineering and Physics, University of Salzburg, 5020 Salzburg, Austria.
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Eissa AE, Moustafa M, El-Husseiny IN, Saeid S, Saleh O, Borhan T. Identification of some skeletal deformities in freshwater teleosts raised in Egyptian aquaculture. Chemosphere 2009; 77:419-425. [PMID: 19647852 DOI: 10.1016/j.chemosphere.2009.06.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 06/17/2009] [Accepted: 06/22/2009] [Indexed: 05/28/2023]
Abstract
This study examines different forms of skeletal deformities detected in fish species collected from two Egyptian aquaculture facilities during two harvest seasons in 2008. Various patterns of skeletal deformities were observed in 19 of 959 fish collected. Deformities were diagnosed using a number of techniques including clinical, radiographic, sonographic and histopathological evaluations. Observed deformities included: lordosis and kyphosis in African catfish (Clarius gariepenius); lateral projection of the mandible, parrot-like head, scoliosis, kyphosis, lordosis and fusion of dorsal with anal fins in Nile tilapia (Oreochromis niloticus); and stump body, scoliosis and mandibular joint deformity in common carp (Cyprinus carpio). Relative incidences of deformities in fish from a facility located in the Sharkia province were 5.12%, 2.66% and 2.85% among catfish, Nile tilapia and common carp, respectively. At a second fish farm located in the Kafr Elsheikh province, the incidences of deformities were 1.02%, 1.55% and 0% among catfish, Nile tilapia and common carp, respectively. Some of the deformities were confirmed using both sonographic and histopathological evaluations. The reasons for the observed deformities could not be definitively determined, but possible aetiologies are discussed.
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Affiliation(s)
- A E Eissa
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Cairo University, Giza 11221, Egypt.
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Abstract
This randomised prospective study in 53 women having vaginal hysterectomy for benign conditions compared a closed vault technique with an open technique. Twenty-seven had the vault closed (group A) whereas 26 patients had an open vault (group B). The primary outcomes include, vault haematoma (as detected by ultrasound on day 3) and fever. Secondary outcomes are haemorrhage, urinary tract infection, urinary retention and vault granulation tissue. The study did not show any statistical difference between either group. Prolapse of the fallopian tube was recorded in one case in the open vault group. A randomised controlled study on a larger scale is recommended.
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Affiliation(s)
- M Moustafa
- Department of Obstetrics and Gynaecology, Frimley Park Hospital, Frimley, UK.
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Moustafa M. Two intrauterine contraceptive devices. J OBSTET GYNAECOL 2008; 28:112-3. [PMID: 18259920 DOI: 10.1080/01443610701844283] [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: 10/22/2022]
Affiliation(s)
- M Moustafa
- Frimley Park Hospital, Camberley, Surrey, UK
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33
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Bouguila J, Zairi I, Jablaoui Y, Haddad S, Hellali M, Azzouz E, Moustafa M, Adouani A. [Primary malignant melanoma of the nasal cavity presenting as a large tumor of the cheek]. ACTA ACUST UNITED AC 2007; 107:474-6. [PMID: 17195003 DOI: 10.1016/s0035-1768(06)77091-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Malignant melanoma of the nasal cavity is a rare tumor usually causing unilateral nasal obstruction and nasal bleeding. Diagnosis is achieved with immunohistochemistry analysis. Surgery is proposed for curative treatment. CASE REPORT We report the case of a 60-year-old man with a malignant melanoma of the nasal cavity revealed by an important tumor of the cheek. Epistaxis and nasal obstructive syndrome occurred later. Because of the tumor stage, palliative chemotherapy was performed but the patient died 4 months after the diagnosis. DISCUSSION This clinical presentation of malignant melanoma of the nasal cavity, related to local spreading, is exceptional. CT scan and MRI are essential for tumor staging and therapeutic decision-making. Prognosis remains poor.
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Affiliation(s)
- J Bouguila
- Service de Chirurgie Maxillo-faciale et Plastique de la Face, Hôpital Charles Nicolle, Tunis, Tunisie.
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34
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Moustafa M, Borai M. Evaluation of two sedation techniques in a casualty department. Crit Care 2007. [PMCID: PMC4095475 DOI: 10.1186/cc5582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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35
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Jarvis AP, Moustafa M, Orme PHA, Younger PL. Effective remediation of grossly polluted acidic, and metal-rich, spoil heap drainage using a novel, low-cost, permeable reactive barrier in Northumberland, UK. Environ Pollut 2006; 143:261-8. [PMID: 16443312 DOI: 10.1016/j.envpol.2005.11.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2005] [Revised: 11/09/2005] [Accepted: 11/25/2005] [Indexed: 05/06/2023]
Abstract
A permeable reactive barrier (PRB) for remediation of coal spoil heap drainage in Northumberland, UK, is described. The drainage has typical chemical characteristics of pH<4, [acidity]>1400 mg/L as CaCO3, [Fe]>300 mg/L, [Mn]>165 mg/L, [Al]>100mg/L and [SO4]>6500 mg/L. During 2 years of operation the PRB has typically removed 50% of the iron and 40% of the sulphate from this subsurface spoil drainage. Bacterial sulphate reduction appears to be a key process of this remediation. Treatment of the effluent from the PRB results in further attenuation; overall reductions in iron and sulphate concentrations are 95% and 67% respectively, and acidity concentration is reduced by an order of magnitude. The mechanisms of attenuation of these, and other, contaminants in the drainage are discussed. Future research and operational objectives for this novel, low-cost, treatment system are also outlined.
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Affiliation(s)
- A P Jarvis
- Hydrogeochemical Engineering Research and Outreach Group, Institute for Research on Environment and Sustainability, Devonshire Building, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK.
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36
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Affiliation(s)
- M Moustafa
- Frimley Park Hospital, Frimley, Surrey, UK
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37
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Moustafa M, Verma K, Beynon DWG. Vulval carcinoma associated with myxoma of iliopsoas muscle. J OBSTET GYNAECOL 2005; 24:831-2. [PMID: 15763809 DOI: 10.1080/01443610400009691] [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: 10/26/2022]
Affiliation(s)
- M Moustafa
- Department of Obstetrics and Gynaecology, Frimley Park Hospital, Camberley, Surrey GU16 7UJ, UK
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38
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Moustafa M, Simpson C, Glover M, Dawson RA, Tesfaye S, Creagh FM, Haddow D, Short R, Heller S, MacNeil S. A new autologous keratinocyte dressing treatment for non-healing diabetic neuropathic foot ulcers. Diabet Med 2004; 21:786-9. [PMID: 15209775 DOI: 10.1111/j.1464-5491.2004.01166.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To evaluate the use of a new cell-tailored carrier surface (TranCell) for delivery of autologous keratinocytes to promote wound healing in patients with chronic neuropathic foot ulcers. METHODS TranCell is a sterile medical grade polymer coated with a plasma-polymerized functional surface containing 20% carboxylic acid which enables keratinocytes to attach and proliferate. Six diabetic patients with neuropathic ulcers resistant to conventional therapy were treated with weekly applications of autologous keratinocytes delivered on TranCell. A split-thickness skin biopsy was taken from each patient followed by isolation, expansion and freezing down of keratinocytes. Keratinocytes were thawed and seeded on TranCell 48 h prior to application. This procedure was repeated weekly in addition to conventional therapy until wound healing was achieved. RESULTS Complete healing was achieved in six out of nine ulcers in six patients, a reduction in ulcer size was achieved in one ulcer and no response was seen in one ulcer. Treatment was discontinued in one patient due to development of Methicillin-Resistant Staphylococcus aureus (MRSA) after only three applications of TranCell. Wound healing took 6-17 applications over 6-20 weeks. There were no recurrences in the healed ulcers after a follow-up of 6 months. CONCLUSIONS TranCell delivery of autologous cells is a promising treatment for chronic diabetic foot ulcers with no side-effects and no recurrence in the healed ulcers.
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Affiliation(s)
- M Moustafa
- Section of Human Metabolism, Division of Clinical Sciences (North), Northern General Hospital, Sheffield S5 7AU, UK
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40
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Smith-Thomas L, Moustafa M, Spada CS, Shi L, Dawson RA, Wagner M, Balafa C, Kedzie KM, Reagan JW, Krauss AHP, Woodward DF, MacNeil S. Latanoprost-induced pigmentation in human iridial melanocytes is fibroblast dependent. Exp Eye Res 2004; 78:973-85. [PMID: 15051478 DOI: 10.1016/j.exer.2003.12.003] [Citation(s) in RCA: 10] [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] [Received: 04/25/2003] [Accepted: 12/12/2003] [Indexed: 10/26/2022]
Abstract
The prostaglandin F2alpha derivative, latanoprost (LT), used in glaucoma treatment, can induce pigmentation in irises of patients with hazel or heterochromatic eye colour. The mechanism by which LT induces pigmentation in the iris is not yet established, although it does not appear to induce proliferation of iridial melanocytes. The purpose of this study was to develop an in vitro model in which to investigate this mechanism. The pigmentary responses to LT and prostaglandin F(2alpha) (PGF(2alpha)) were examined in human iridial melanocytes alone or in co-culture with epithelial cells (non-ocular human epidermal keratinocytes and iris pigment epithelial cells) or mesenchymal cells (non-ocular dermal fibroblasts or iridial fibroblasts). Melanogenesis was assessed after 4 days culture with prostanoids, using dopa oxidase activity. Prostaglandin FP expression on human iridial fibroblasts and melanocytes was investigated using an immunofluorescent technique employing antibody to PGF(2alpha) receptor and RT-PCR. Iridial melanocytes did not show a convincing increase in dopa oxidase when cultured alone but in the presence of fibroblasts (ocular or non-ocular) there was a significant increase (25-30%) in dopa oxidase activity in response to 10(-7)-10(-5)m LT and PGF(2alpha). Co-culture of melanocytes with epithelial cells, while leading to increased dopa oxidase activity, did not lead to any melanogenic response to LT or PGF(2alpha). FP receptor expression was detected on fibroblasts but not iridial melanocytes by immunocytochemistry and RT-PCR. The melanocyte/fibroblast co-culture model developed in this study also showed that LT and PGF(2alpha) increased dopa oxidase activity in melanocytes from donors with brown but not blue eyes. These results suggest that LT may be inducing pigmentation in the human iris indirectly through the FP receptor on adjacent fibroblasts.
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Affiliation(s)
- L Smith-Thomas
- Division of Clinical Sciences (North), University Section of Human Metabolism, Northern General Hospital, Sheffield S5 7AU, UK.
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41
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Affiliation(s)
- M Moustafa
- Department of Obstetrics and Gynaecology, Frimley Park Hospital, Camberley, UK
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42
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Trudgill NJ, Hussain FN, Moustafa M, Ajjan R, D'Amato M, Riley SA. The effect of cholecystokinin antagonism on postprandial lower oesophageal sphincter function in asymptomatic volunteers and patients with reflux disease. Aliment Pharmacol Ther 2001; 15:1357-64. [PMID: 11552906 DOI: 10.1046/j.1365-2036.2001.01045.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Postprandial acid reflux is thought to be mediated by the increase in transient lower oesophageal sphincter relaxations (TLOSR) frequency and fall in lower oesophageal sphincter (LOS) pressure seen after ingestion of a meal. Studies in animals and healthy volunteers suggest that cholecystokinin (CCK) may play a role. AIM To study the role of CCK in postprandial LOS function using the CCK antagonist loxiglumide. SUBJECTS 10 asymptomatic volunteers (7 male, 20-29 years) and 9 patients with symptomatic gastro-oesophageal reflux (4 male, 33-66 years). METHODS Oesophageal, LOS and gastric pressure and oesophageal pH readings were recorded for 1 h before and 2 h after intragastric infusion of a 200 kCal, 300 mL long chain triglyceride meal. Each subject underwent two studies and received intravenous loxiglumide or placebo infusion in randomized order. RESULTS During placebo infusion, postprandial LOS pressure fell [volunteers: 17 (9-31) to 7 (1-19) mmHg (P < 0.01), patients: 15 (6-26) to 9 (2-21) mmHg (P=0.02)] and TLOSR frequency increased [volunteers: 0 (0-1) to 2 (0-7) per hour (P=0.01), patients: 0 (0-3) to 2 (0-10) per hour (P=0.03)]. Loxiglumide infusion attenuated the postprandial fall in LOS pressure and the postprandial increase in TLOSR frequency [volunteers: 0 (0-3) per hour (P=0.04 vs. placebo), patients: 0 (0-2) per hour (P=0.03 vs. placebo)], but it had only modest effects on postprandial acid exposure [volunteers: placebo 45 (0-1725) vs. loxiglumide 0 (0-443) seconds (N.S.), patients: placebo 60 (0-3442) seconds vs. loxiglumide 31 (0-1472) seconds (N.S.)]. CONCLUSIONS Loxiglumide inhibits TLOSR and attenuates the fall in LOS pressure following a meal, but has only modest effects on postprandial gastro-oesophageal acid reflux.
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Affiliation(s)
- N J Trudgill
- Department of Gastroenterology, Northern General Hospital, Sheffield, United Kingdom
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43
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Smith-Thomas LC, Moustafa M, Dawson RA, Wagner M, Balafa C, Haycock JW, Krauss AH, Woodward DF, MacNeil S. Cellular and hormonal regulation of pigmentation in human ocular melanocytes. Pigment Cell Res 2001; 14:298-309. [PMID: 11549114 DOI: 10.1034/j.1600-0749.2001.140411.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to examine some of the factors that may be relevant to regulating pigmentation in the human eye, specifically whether choroidal and iridial melanocytes are sensitive to regulation by epithelial and stromal cells and alpha-melanocyte stimulating hormone (alpha-MSH). Human choroidal and iridial melanocytes were established in culture and co-cultured with epithelial cells and stromal cells derived both from skin and from eye in order to determine their influence on choroidal and iridial melanocyte dopa oxidase activity. In all cases, co-culture of melanocytes with either epithelial cells or fibroblasts led to an increase in dopa oxidase activity during 5 days of co-culture. The extent of the increase ranged from 60% (non-significant) to as much as 185% when both fibroblasts and keratinocytes were present. The optimal ratio of fibroblasts to melanocytes was 1:10 (for dermal fibroblasts) or 1:2 (for iridial fibroblasts) and 1:1 for all epithelial cells to melanocytes. Both choroidal (three out of three cultures) and iridial (two out of three cultures) melanocytes showed increases in dopa oxidase activity to alpha-MSH when cultured in Green's media but the same cells cultured in MCDB153 were unresponsive to alpha-MSH. These in vitro studies suggest that ocular melanocytes have the capacity to be influenced by adjacent epithelial and stromal cells with respect to pigmentation.
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Affiliation(s)
- L C Smith-Thomas
- Section of Medicine, Clinical Sciences Centre, Northern General Hospital, Sheffield, United Kingdom.
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Hussain FN, Ajjan RA, Kapur K, Moustafa M, Riley SA. Once versus divided daily dosing with delayed-release mesalazine: a study of tissue drug concentrations and standard pharmacokinetic parameters. Aliment Pharmacol Ther 2001; 15:53-62. [PMID: 11136278 DOI: 10.1046/j.1365-2036.2001.00891.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Delayed-release mesalazine is traditionally taken as three divided doses. However, it is well-recognized that dosing frequency has a significant impact on compliance and that once daily dosing is preferable. METHODS We measured serum, urinary, faecal and rectal tissue concentrations of 5-aminosalicylic acid and N-acetyl 5-aminosalicylic acid in 24 healthy volunteers following dosing with delayed-release mesalazine, 1.2 g or 2.4 g daily, given as either a single daily dose at 08:00 hours or in three divided doses at 08:00, 13:00 and 18:00 hours. RESULTS Urinary and faecal excretion and rectal tissue concentrations of 5-aminosalicylic acid and N-acetyl 5-aminosalicylic acid were similar following single or divided daily dosing, at both doses studied. Peak serum concentrations were found at 06:00-09:00 following divided dosing and at 17:00-20:00 following once daily dosing. However, peak and trough serum levels and serum area under curve values (AUC) were similar with both regimens and at both doses. CONCLUSIONS Urinary, faecal and rectal tissue concentrations are similar following single or divided daily dosing. Minor differences in serum levels were apparent but maximum, minimum and AUC values were similar. Clinical trials should examine the efficacy and toxicity of once daily dosing in patients with ulcerative colitis.
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Affiliation(s)
- F N Hussain
- Department of Gastroenterology, Northern General Hospital, Sheffield, UK
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Abstract
Insertion of foreign bodies into the urethram to obtain sexual pleasure may be complicated by their passage into the urinary bladder along with an inability for the patient to recover the foreign body. We present such a case, review the relevant literature, and discuss Emergency Department (ED) diagnosis and management.
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Hussain FN, Ajjan RA, Moustafa M, Anderson JC, Riley SA. Simple method for the determination of 5-aminosalicylic and N-acetyl-5-aminosalicylic acid in rectal tissue biopsies. J Chromatogr B Biomed Sci Appl 1998; 716:257-66. [PMID: 9824239 DOI: 10.1016/s0378-4347(98)00323-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We describe a sensitive high-performance liquid chromatographic method for the determination of 5-aminosalicylic acid and N-acetyl-5-aminosalicylic acid in rectal tissue biopsies. Samples were derivatised using propionic anhydride and proteins were precipitated with methanol. A Supelcosil ABZ column (150x4.6 mm I.D., 5 microm silica particles) was used with a mobile phase comprising 0.1 M acetic acid, acetonitrile and triethylamine (1600:114:6, v/v/v). Fluorescence detection was employed and detection limits were 0.2 ng/mg tissue at a signal-to-noise ratio of three (measured concentration: 5-aminosalicylic acid, 0.254 (0.228-0.286) ng/mg, C.V. 10.7%; N-acetyl-5-aminosalicylic acid, 0.18 (0.154-0.198) ng/mg, C.V 9.8%). This assay was validated for use with serum, urine and faecal samples for which it proved to be both precise and accurate (C.V.<10%, measured concentration within 10%).
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Affiliation(s)
- F N Hussain
- Department of Gastroenterology, Northern General Hospital, Sheffield, UK
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Hussain FN, Ajjan RA, Moustafa M, Weir NW, Riley SA. Mesalazine release from a pH dependent formulation: effects of omeprazole and lactulose co-administration. Br J Clin Pharmacol 1998; 46:173-5. [PMID: 9723828 PMCID: PMC1873662 DOI: 10.1046/j.1365-2125.1998.00762.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AIMS Delayed-release formulations of mesalazine often rely on the gastrointestinal luminal pH profile to deliver 5-aminosalicylic acid (5ASA) to the colon. The aim of this study was to examine the influence of luminal pH on mesalazine release. METHODS We studied the effect of co-administration of omeprazole and lactulose on the steady-state pharmacokinetics of Eudragit S-coated mesalazine in healthy volunteers. RESULTS No significant changes in urinary or faecal levels of 5ASA or its main metabolite, N-acetyl 5ASA, were apparent. CONCLUSIONS This study suggests that co-administration of omeprazole and lactulose does not impair the release of delayed-release mesalazine.
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Affiliation(s)
- F N Hussain
- Department of Gastroenterology, Northern General Hospital, Sheffield
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Moustafa M, Ozörnek MH, Krüssel JS, Cupisti S, Bodden-Heidrich R, Koldovsky U, Bielfeld P. The effect of antigamete antibodies on the success of assisted reproduction. CLIN EXP OBSTET GYN 1997; 24:67-9. [PMID: 9342464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The aim of the study was to investigate the presence of antigamente antibodies in unexplained infertility patients and to prove the efficiency of IUI and IVF-ET treatments for these patients. The study includes 46 unexplained infertility patients and as controls, a group of 21 tubal infertility patients. Serum, follicular fluid and cervical mucus samples were collected from each patient and antibodies were measured with commercial ELISA kits. Twenty-two of the 46 unexplained infertility patients produced at least one of the antibodies against sperm or ovary. Fertilization rates were lower in immunological and unexplained infertility patients than in tubal infertility patients, being statistically significant. Pregnancy rates were lower in immunological and unexplained infertility patients than in tubal infertility patients after IVF-ET, but this was not statistically significant. Pregnancy rates after IUI treatment were equal in both immunological and unexplained infertility groups. AGA (antigamete antibodies) were found in 45% of unexplained infertility patients and therefore may be a possible cause of infertility. IUI and IVF-ET are successful choices for treatment of these patients.
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Affiliation(s)
- M Moustafa
- Department of Gynaecology and Obstetrics, Tanta University, Egypt
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Ozörnek MH, Bielfeld P, Krüssel JS, Moustafa M, Mikat-Drozdzynski B, Koldovsky U, Kuhn U. Interferon gamma and interleukin 10 levels in preimplantation embryo culture media. J Assist Reprod Genet 1995; 12:590-3. [PMID: 8580655 DOI: 10.1007/bf02212580] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
PURPOSE The aim of our study is to elucidate whether human oocytes/embryos secrete IFN gamma and/or IL-10 and whether the fertilization process depends on the balance between these cytokines. METHODS A total of 142 embryo culture media from 24 patients were collected and the cytokine levels were tested with ELISA. RESULTS IFN gamma and IL-10 were detectable in 40.1% and 29.6% of culture media respectively. The difference of IFN gamma and IL-10 levels in media from fertilized oocytes between day 1 and day 2 are significant (0.46 vs. 1.47 and 34.2 vs. 12.7, respectively). However there was no significant difference between the IFN gamma levels of the media from fertilized and nonfertilized oocytes 0.46 vs. 0.85 at day 1 and 1.47 vs 1.49 at day 2, as well as IL-10 levels 34.2 vs. 30.9 at day 1 and 12.7 vs. 9.58 at day 2 respectively. CONCLUSIONS Human preimplantation embryos secrete the cytokines IFN gamma and IL-10. No effect of these cytokines on fertilization process could be shown.
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Affiliation(s)
- M H Ozörnek
- Department of Obstetrics and Gynecology, Frauenklinik, Heinrich Heine Universitat, Düsseldorf, Germany
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Pritchard DI, Quinnell RJ, Moustafa M, McKean PG, Slater AF, Raiko A, Dale DD, Keymer AE. Hookworm (Necator americanus) infection and storage iron depletion. Trans R Soc Trop Med Hyg 1991; 85:235-8. [PMID: 1887481 DOI: 10.1016/0035-9203(91)90038-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [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: 12/29/2022] Open
Abstract
The relationship between iron status and the intensity of infection with hookworm was investigated in a rural population on Karkar Island, Mandang Province, Papua New Guinea. There was a significant negative correlation between plasma ferritin level and hookworm burden, which was strongest in males. In contrast, there was no correlation between plasma ferritin and hookworm egg count, and no consistent correlation between haemoglobin level or haematocrit and either measure of hookworm intensity. The results suggest that the role of hookworm in the aetiology of anaemia may be difficult to assess without the accurate measurement of hookworm burden.
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