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Khandait H, Hanif M, Ramadan A, Attia AM, Endurance E, Siddiq A, Iqbal U, Song D, Chaudhuri D. A meta-analysis of outcomes of aspiration thrombectomy for high and intermediate-risk pulmonary embolism. Curr Probl Cardiol 2024; 49:102420. [PMID: 38290623 DOI: 10.1016/j.cpcardiol.2024.102420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND Aspiration thrombectomy has gained popularity in patients with massive and sub-massive pulmonary embolism (PE) and having contraindications to thrombolysis. METHODS A meta-analysis was conducted including studies on aspiration thrombectomy in patients with high-risk and intermediate-risk PE. The pooled odds ratio for efficacy parameters, including change in heart rate, blood pressure and right ventricle/left ventricle (RV/LV) ratio, and safety parameters including major bleeding and stroke, was calculated using a random effects model. RESULTS The meta-analysis of 24 selected studies revealed that intermediate and high-risk pulmonary embolism (PE) patients demonstrated significant improvements: modified Miller score odds ratio of 10.60, mean pulmonary artery pressure reduction by 0.04 mm Hg, and an overall all-cause mortality odds ratio of 0.10. Considerable heterogeneity was observed in various outcomes. CONCLUSION Aspiration thrombectomy has success rates in both high-risk and intermediate-risk PE, however, procedural risks, including bleeding, must be anticipated.
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Affiliation(s)
| | - Muhammad Hanif
- Department of Internal Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Alaa Ramadan
- Faculty of Medicine, South Valley University, Qena, Egypt
| | | | | | | | - Unzela Iqbal
- Trinitas Regional Medical Center/RWJ Barnabas Health, NJ, USA
| | - David Song
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai Elmhurst Hospital Center, Queens NY, USA
| | - Debanik Chaudhuri
- Department of Internal Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
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Jaiswal V, Hameed M, Naz S, Roy P, Deb N, Ukrani J, Krishna Mohan GV, Taha AM, Huang H, Kumar V, Vachhani B, Attia AM, Nath SD, Solimn MA, Mukherjee D. Efficacy of lenvatinib versus sorafenib in the primary treatment of advanced hepatocellular carcinoma: A meta-analysis. JGH Open 2023; 7:832-840. [PMID: 38162860 PMCID: PMC10757498 DOI: 10.1002/jgh3.12999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/28/2023] [Accepted: 10/25/2023] [Indexed: 01/03/2024]
Abstract
Background and Aim Molecular-targeted agents such as lenvatinib and sorafenib have been approved to treat hepatocellular carcinoma (HCC). However, the choice between these two agents in the primary treatment for advanced HCC is still under debate with conflicting results. We sought to evaluate the efficacy of lenvatinib and sorafenib in patients with HCC. Methods We performed a systematic literature search using PubMed, Embase, and Scopus for relevant articles from inception until February 10, 2023. The primary outcome of this meta-analysis was overall survival (OS). The secondary outcomes were progression-free survival (PFS), time to progression, objective response rate (ORR), and disease control rate (DCR). Results A total of 13 studies with 3705 patients (1635 on lenvatinib and 2070 on sorafenib) were included in our analysis. The mean age of the patients in both groups was comparable (66.81 vs 65.9 years). Pooled analysis of primary outcomes showed that, compared with sorafenib, lenvatinib was associated with significantly better OS in patients treated with these drugs (HR 0.82, 95% CI: 0.69-0.97, P = 0.02). Pooled analysis also showed that PFS (HR 0.67, 95% CI: 0.57-0.78, P < 0.00001) and time to progression (HR 0.49, 95% CI: 0.31-0.79; P = 0.004) were significantly better in the lenvatinib group compared to the sorafenib group. It also showed that the lenvatinib group had significantly better ORR (odds ratio [OR] 5.43, 95% CI: 3.71-7.97; P < 0.00001) and DCR (OR 2.35, 95% CI: 1.75-3.16; P < 00001) than the sorafenib group. Conclusion Our study shows that lenvatinib is superior to sorafenib regarding OS and PFS in patients with advanced HCC.
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Affiliation(s)
- Vikash Jaiswal
- Department of ResearchLarkin Community HospitalSouth MiamiFloridaUSA
| | - Maha Hameed
- Department of Internal MedicineFlorida State University, Sarasota Memorial HospitalSarasotaFloridaUSA
| | - Sidra Naz
- Department of GastroenterologyThe University of Texas, MD Anderson Cancer CenterHoustonTexasUSA
| | - Poulami Roy
- North Bengal Medical College and HospitalWest BengalIndia
| | - Novonil Deb
- North Bengal Medical College and HospitalWest BengalIndia
| | - Janta Ukrani
- Department of Internal MedicineMather Hospital, Northwell HealthPort JeffersonaNew YorkUSA
| | | | | | - Helen Huang
- Royal College of Surgeons in IrelandUniversity of Medicine and Health ScienceDublinIreland
| | - Vikash Kumar
- Department of Internal MedicineThe Brooklyn Hospital CenterNew YorkNew YorkUSA
| | | | | | - Supti D Nath
- Department of MedicineJohns Hopkins UniversityBaltimoreMarylandUSA
| | | | - Dattatreya Mukherjee
- Department of MedicineRaiganj Government Medical College and HospitalWest BengalIndia
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Abdelnaby R, Elgenidy A, Heckelmann J, Bedewy MM, Shabib AS, Ebrahim MA, Elmenawi KA, Maallem I, Youssef MW, Attia AM, Moawad MH, Mohamed KA, Gaballa A. The role of creatine kinase in distinguishing generalized tonic-clonic seizures from psychogenic non-epileptic seizures (PNES) and syncope: a retrospective study and meta-analysis of 1300 patients. Neurol Res Pract 2023; 5:56. [PMID: 37821955 PMCID: PMC10568853 DOI: 10.1186/s42466-023-00286-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND/AIM As the clinical differentiation between epileptic seizures, psychogenic non-epileptic seizures (PNES), and syncope depends mainly on a detailed report of the event, which may not be available, an objective assessment of a potential biochemical analysis is needed. We aimed to investigate whether serum creatine kinase (CK) could be used to differentiate epileptic seizure from PNES and syncope and to assess the strength of evidence present. METHODS We directed a retrospective cohort study coupled with a systematic review and meta-analysis of studies that measured CK in patients with epilepsy, PNES, syncope, and healthy controls. RESULTS The cohort study, which traced 202 patients, showed that the CK level was significantly higher 48 h after the event in the epilepsy group versus patients with syncope (p < 0.01) Along with 1086 patients obtained through a database search for meta-analysis, CK level compared to different types of seizures from PNES was higher in epileptic seizure patients with a mean difference of 568.966 mIU/ml (95% CI 166.864, 971.067). The subgroup analysis of CK showed that it was higher in GTCS compared to syncope with a mean difference of 125.39 mIU/ml (95% CI 45.25, 205.52). DISCUSSION Increased serum levels of CK have been associated mainly with epileptic seizures in relation to non-epileptic events. However, further studies would try to explore the variation in measurements and any other potential diagnostic marker. CONCLUSION The cohort study shows that the CK level in epilepsy seizures is higher after 48 h from the event compared to syncope. Moreover, the meta-analysis results show the present diagnostic utility of CK and its importance to be used in accordance with a detailed report of the event.
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Affiliation(s)
- Ramy Abdelnaby
- Department of Neurology, RWTH Aachen University, Aachen, Germany.
| | | | - Jan Heckelmann
- Department of Neurology, RWTH Aachen University, Aachen, Germany
| | | | | | | | | | - Imene Maallem
- Faculté de Pharmacie, 23 Avenue Maquis du Grésivaudan, 38700, La Tronche, Grenoble, France
| | | | | | - Mostafa Hossam Moawad
- Faculty of Pharmacy, Clinical Department, Alexandria University, Alexandria, Egypt
- Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | | | - Ahmed Gaballa
- Department of Epileptology (Krankenhaus Mara), Medical School, Bielefeld University, Campus Bielefeld- Bethel, Bielefeld, Germany
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Jaiswal A, Jaiswal V, Ang SP, Hanif M, Vadhera A, Agrawal V, Kumar T, Nair AM, Borra V, Garimella V, Ishak A, Wajid Z, Song D, Attia AM, Huang H, Aguilera Alvarez VH, Shrestha AB, Biswas M. SGLT2 inhibitors among patients with heart failure with preserved ejection fraction: A meta-analysis of randomised controlled trials. Medicine (Baltimore) 2023; 102:e34693. [PMID: 37773799 PMCID: PMC10545009 DOI: 10.1097/md.0000000000034693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 07/20/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Sodium-glucose co-transporter 2 (SGLT2) inhibitors have been recommended in the practice guidelines for the treatment of patients with heart failure with reduced ejection fraction; however, their effects among patients with preserved ejection fraction have been debatable. OBJECTIVE We aim to evaluate the SGLT2 inhibitor effect among patients with heart failure with reduced ejection fraction, including DELIVER and EMPEROR-Preserved trials. METHODS We performed a systematic literature search using the PubMed, Embase, Scopus, and Cochrane libraries for relevant articles from inception until August 30th, 2022. Statistical analysis was performed by calculating hazard ratio (HR) using the random effect model with a 95% confidence interval (CI) and probability value (P). Statistical significance was met if 95% CI does not cross numeric "1" and P < .05. RESULTS Six studies with a total of 15,989 total patients were included in the final analysis. The mean age of patients enrolled in SGLT2 inhibitors and placebo was 69.13 and 69.37 years, respectively. The median follow-up duration was 2.24 years. SGLT2 inhibitors reduced composite cardiovascular mortality or first hospitalization for heart failure (HR, 0.80 [95% CI: 0.74-0.87], P < .001, I2 = 0%), heart failure hospitalization (HR, 0.74 [95% CI: 0.67-0.82], P < .001, I2 = 0%) compared with placebo. However, all-cause mortality (HR, 0.97 [95% CI: 0.89-1.06], P = .54, I2 = 0%) and cardiovascular mortality (HR, 0.96 [95% CI: 0.82-1.13), P = .66, I2 = 35.09%] were comparable between both groups. CONCLUSION Our study finding shows that SGLT2 inhibitors significantly reduced the risk of first HF hospitalization or cardiovascular death and HF hospitalization; however, all-cause mortality was comparable between the groups.
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Affiliation(s)
- Akash Jaiswal
- Department of Geriatric Medicine, All India Institute of Medical Science, New Delhi, India
| | - Vikash Jaiswal
- Department of Cardiovascular Research, Larkin Community Hospital, South Miami, FL
| | - Song Peng Ang
- Department of Internal Medicine, Rutgers Health/Community Medical Center, NJ
| | - Muhammad Hanif
- Department of Internal Medicine, SUNY Upstate Medical University
| | | | | | - Tushar Kumar
- Department of Radiology, Sikkim Manipal Institute of Medical Science, Sikkim, India
| | | | | | | | - Angela Ishak
- Department of Geriatric Medicine, All India Institute of Medical Science, New Delhi, India
| | - Zarghoona Wajid
- Department of Internal Medicine, Wayne State University School of Medicine, MI
| | - David Song
- Department of Internal Medicine, Ichan School of Medicine at Mount Sinai, NY
| | | | - Helen Huang
- Royal College of Surgeons in Ireland, University of Medicine and Health Science, Dublin, Ireland
| | | | | | - Monodeep Biswas
- Division of Cardiology, The University of Maryland, Baltimore, MD
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Shrateh ON, Thalji M, Jobran AW, Brakat AM, Attia AM, Abunejma FM. Genotype Mutations in Palestinian Children with Familial Mediterranean Fever: Clinical Profile, and Response to Colchicine Treatment: A Retrospective Cohort Study. Mediterr J Rheumatol 2023; 34:332-341. [PMID: 37941861 PMCID: PMC10628868 DOI: 10.31138/mjr.20230912.stm] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 11/10/2023] Open
Abstract
Background Familial Mediterranean fever is a hereditary autoinflammatory disease affecting mainly Arabs, Turks, Armenians, and Jews with genotype-phenotype heterogeneity, presenting as recurrent episodes of fever along with polyserositis and rash. To date, more than 370 mutations in the MEFV gene have been recognized to cause the disease. Methods We conducted a retrospective cohort study involving 124 patients in Hebron, Palestine, diagnosed with FMF at the Al-Ahli, and Palestinian Red Crescent Society (PRCS) Hospitals. Results The median age of diagnosis was five years, presenting as abdominal pain (76.6%), fever (67.7%), joint pain and arthritis. Regarding MEFV gene mutations, we had 62 patients (50%) with heterozygous genotypes, 40 patients (32.3%) with homozygous phenotypes, 21 patients (16.9%) with compound heterozygous genotypes, and one was a missing state. Regarding variant frequencies, M694V was the most common one (43.4%), followed by E148Q (15.6%), V726A (5.7%), A744S (4.1%), and R202Q (4.1%). Positive family history was detected in 59 patients (54.6%), and there was no significant difference in zygosity regarding characteristics, consanguinity, and family history. Conclusions We affirm in this study of 124 children with FMF, abdominal pain, followed by fever, joint pain and arthritis were the main manifestations. Further, M694V, E148Q, V726A, A744S, and R202Q were the most frequent mutations, and carrying the M649V mutations is associated with a predisposition to other comorbidities. We believe that this study gives a pervasive overview of FMF in Palestinian patients. Looking forward, future studies on a larger number of patients could precisely highlight the genotype-phenotype association among FMF patients.
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Affiliation(s)
- Oadi N. Shrateh
- Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
| | - Mariam Thalji
- Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
| | | | - Aml M. Brakat
- Faculty of Medicine, Zagazig University, Ash Sharqia Governorate, Egypt
| | | | - Fawzy M. Abunejma
- Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
- Department of Paediatric Rheumatology, Palestinian Red Crescent Society Hospitals, Hebron, Palestine
- Department of Paediatric Rheumatology, Al Ahli Hospital, Hebron, Palestine
- Paediatric Department, Faculty of Medicine, Hebron University, Palestine
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Jaiswal V, Ang SP, Ishak A, Joshi A, Chia JE, Lnu K, Attia AM, Sharma P, Biswas M, Grubb KJ. Transcatheter versus Surgical Aortic Valve Replacement Outcomes among Solid Organ Transplant Patients: A Systematic Review and Meta-Analysis. Curr Probl Cardiol 2023; 48:101685. [PMID: 36931333 DOI: 10.1016/j.cpcardiol.2023.101685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/02/2023] [Indexed: 03/17/2023]
Abstract
BACKGROUND The safety and clinical outcomes of transcatheter aortic valve replacement (TAVR) compared to surgical aortic valve replacement (SAVR) among patients with solid organ transplants (SOT) is not well understood. OBJECTIVE This study aimed to evaluate the clinical outcomes of TAVR and SAVR among patients with a history of solid organ transplantation. METHOD We performed a systematic literature search of databases for relevant articles from inception until May 1st, 2022. Unadjusted odds ratios (OR) were pooled using a random-effect model, and a p-value of <0.05 was considered statistically significant. RESULT A total of 3240 studies were identified of which 3 studies with a total of 2960 patients were included in the final analysis. For SOT patients, the odds of in-hospital mortality (OR 0.37, 95% CI 0.20 to 0.71, p<0.001), 30-day mortality (OR 0.51, 95% CI 0.35 to 0.74, p<0.001), acute kidney injury (OR 0.45, 95% CI 0.35 to 0.59, p<0.001), and bleeding (OR 0.35, 95% CI 0.27 to 0.46, p<0.001) were significantly lower in patients undergoing TAVR compared to SAVR. In contrast, the odds of pacemaker implantation (OR 2.60, 95% CI 0.36 to 18.90, p=0.34), post-procedural stroke (OR 0.36, 95% CI 0.13 to 1.03, p=0.06) were similar between both groups of patients. Length of hospital stay was significantly lower in TAVR compared to SAVR patients (SMD -0.82, 95% CI -0.95 to -0.70, p<0.001). CONCLUSION In solid organ transplant patients, TAVR appeared to be a safe procedure with fewer post-procedure complications, shorter length of hospital stay, and lower in hospital mortality compared with SAVR.
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Affiliation(s)
- Vikash Jaiswal
- Department of Cardiovascular Research, Larkin Community Hospital, South Miami, Fl, USA.
| | - Song Peng Ang
- Department of Internal Medicine, Rutgers Health/Community Medical Center, New Jersey, USA
| | - Angela Ishak
- Department of Research and Academic affairs, Larkin Community Hospital, South Miami, Fl, USA
| | - Amey Joshi
- Department of Cardiovascular Research, Larkin Community Hospital, South Miami, Fl, USA
| | - Jia Ee Chia
- Department of Medicine, International Medical University, Malaysia
| | - Kriti Lnu
- Department of Cardiology, Medstar Washington Hospital Center, WD, USA
| | | | - Prachi Sharma
- Department of Cardiology, King George's Medical University, Lucknow, India
| | - Monodeep Biswas
- General Cardiology & Advanced Heart Failure, Wellspan Cardiology, Lancaster, Pennsylvania, USA & University of Maryland Medical Center, Baltimore
| | - Kendra J Grubb
- Division of Cardiothoracic Surgery, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, USA.
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Joshi A, Bhambhani A, Barure R, Gonuguntla S, Sarathi V, Attia AM, Shrestha AB, Jaiswal V. Neutrophil-lymphocyte ratio and platelet-lymphocyte ratio as markers of stable ischemic heart disease in diabetic patients: An observational study. Medicine (Baltimore) 2023; 102:e32735. [PMID: 36749238 PMCID: PMC9902008 DOI: 10.1097/md.0000000000032735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Ischemic heart disease (IHD) is a pressing public health concern with high prevalence, mortality, and morbidity. Although the value of neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) as markers of the acute coronary syndrome are well recognized, there is a paucity of data deciphering their role in screening for stable ischemic heart disease (SIHD) in the presence of type 2 diabetes mellitus (T2DM). The present study investigates the value of NLR and PLR as markers of SIHD in T2DM. We evaluated the predictive value of NLR and PLR for SIHD by comparing T2DM patients having angiographically proven SIHD to T2DM patients without IHD at different cutoff levels by evaluating the area under the curve (AUC) obtained from receiver-operating-characteristic analysis. Raised NLR and PLR were significantly associated with SIHD ( P < .001 for each). On performing AUC-receiver-operating-characteristic analysis, NLR of > 2.39 and PLR of > 68.80 were associated with the highest prevalence of SIHD (NLR, AUC: 0.652 [0.605-0.699]; CI: 95%; P < .001, PLR, AUC: 0.623 [0.575-0.671] CI: 95%; P < .001). The sensitivities and specificities for these cutoff values were 50% and 73% for NLR and 73% and 46% for PLR, respectively. NLR and PLR were significantly higher in SIHD compared to those without; however, these markers had limited predictive potential in the setting of T2DM.
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Affiliation(s)
- Amey Joshi
- Department of Cardiology, Vydehi Institute of Medical Sciences and Research Center, Whitefield, Bangalore, Karnataka, India
| | - Anupam Bhambhani
- Department of Cardiology, Vydehi Institute of Medical Sciences and Research Center, Whitefield, Bangalore, Karnataka, India
| | - Ramdas Barure
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Center, Whitefield, Bangalore, Karnataka, India
| | - Samhitha Gonuguntla
- Department of Cardiology, Vydehi Institute of Medical Sciences and Research Center, Whitefield, Bangalore, Karnataka, India
| | - Vijaya Sarathi
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Center, Whitefield, Bangalore, Karnataka, India
| | | | - Abhigan Babu Shrestha
- Department of Medicine, M Abdur Rahim Medical College, Dinajpur, Bangladesh
- * Correspondence: Abhigan Babu Shrestha, Department of Medicine, M Abdur Rahim Medical College, Dinajpur 5200, Bangladesh (e-mail: )
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8
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Jaiswal V, Khan N, Jaiswal A, Dagar M, Joshi A, Huang H, Naz H, Attia AM, Ghanim M, Baburaj A, Song D. Early surgery vs conservative management among asymptomatic aortic stenosis: A systematic review and meta-analysis. IJC Heart & Vasculature 2022; 43:101125. [PMID: 36176308 PMCID: PMC9513172 DOI: 10.1016/j.ijcha.2022.101125] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/31/2022] [Accepted: 09/17/2022] [Indexed: 11/20/2022]
Abstract
Aortic valve replacement remains the definitive choice of treatment for AS. All-cause mortality and adverse events are lower with early surgical valve repair. In high-risk AS patients, early surgery is safer than conservative management. Early intervention is crucial to prevent irreversible damage of AS.
Introduction Although aortic valve replacement in severe symptomatic Aortic Stenosis (AS) are clearly outlined, the role of surgical intervention in asymptomatic severe AS remains unclear with limited evidence. The aim of our meta-analysis is to evaluate the efficacy and safety of early surgical aortic valve repair compared to conservative management. Methods A systematic literature search was performed in PubMed, Scopus, Embase and Cochrane databases for studies comparing the early surgery versus conservative management among asymptomatic aortic stenosis patients. Unadjusted odds ratios (OR) were pooled using a random-effect model, and a p-value of < 0.05 was considered statistically significant. Results A total of 5 articles (3 observational studies and 2 randomized controlled trials) were included. At a median followup of 4.1 years, here were significantly lower odds of all-cause mortality [OR = 0.30 (95 %CI:0.17–0.53), p < 0.0001], cardiovascular mortality [OR = 0.35 (95 %CI:(0.17–0.72), p = 0.005], and sudden cardiac death (OR = 0.36 (95 %CI: 0.15–0.89), p = 0.03) among early surgery group compared with conservative care. There was no significant difference between incidence of major bleeding, clinical thromboembolic events, hospitalization due to heart failure, stroke and myocardial infarction between the conservative care groups and early surgery. Conclusion Among asymptomatic patients with AS, early surgery shows better outcomes in reducing all-cause mortality and cardiovascular mortality compared with conservative management approaches.
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Affiliation(s)
- Vikash Jaiswal
- Department of Cardiovascular Research, Larkin Community Hospital, FL, USA
| | - Nida Khan
- Jinnah Sindh Medical University, Karachi, Pakistan
| | - Akash Jaiswal
- Department of Geriatric Medicine, All India Institute of Medical Science, New Delhi, India
| | - Mehak Dagar
- Himalayan Institute of Medical Science, Dehradun, India
| | - Amey Joshi
- Department of Cardiovascular Research, Larkin Community Hospital, FL, USA
| | - Helen Huang
- University of Medicine and Health Science, Royal College of Surgeons in Ireland, Dublin, Ireland
- Corresponding author: University of Medicine and Health Science, Royal College of Surgeons in Ireland, 123 St, Stephen Green, Dublin D02 YN77, Ireland.
| | - Hira Naz
- Fatima Jinnah Medical University, Pakistan
| | | | | | - Abiram Baburaj
- Center for Public Health, Queen’s University Belfast, UK
| | - David Song
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai – Elmhurst Hospital Center, NY, USA
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Kobeissi H, Attia AM, Elgazzar TA, Shah J, Bajaber A, Almustanyir S, Alsaeed R, Khalifa RO, Azzam AY, Hafida S, Ghozy S, Islam SMS. Changes in physical activity during COVID‐19 pandemic among Saudi Arabians: Results from a cross‐sectional study. Health Sci Rep 2022; 5:e822. [PMID: 36110347 PMCID: PMC9466003 DOI: 10.1002/hsr2.822] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 01/19/2023] Open
Affiliation(s)
- Hassan Kobeissi
- College of Medicine Central Michigan University Mount Pleasant Michigan USA
| | | | | | - Jaffer Shah
- New York State Department of Health New York USA
| | | | - Sami Almustanyir
- Department of Internal Medicine Ministry of Health Riyadh Saudi Arabia
| | - Ruaa Alsaeed
- Alfaisal University College of Medicine Riyadh Saudi Arabia
| | | | | | - Samar Hafida
- Beth Israel Deaconess Medical Center Harvard Medical School Boston Massachusetts USA
| | - Sherief Ghozy
- Department of Neuroradiology Mayo Clinic Rochester Minnesota USA
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Mohamed Hussein AAR, Galal I, Amin MT, Moshnib AA, Makhlouf NA, Makhlouf HA, Abd-Elaal HK, Kholief KMS, Abdel Tawab DA, Kamal Eldin KA, Attia AM, Othman AEA, Shah J, Aiash H. Prevalence of vitamin D deficiency among patients attending Post COVID-19 follow-up clinic: a cross-sectional study. Eur Rev Med Pharmacol Sci 2022; 26:3038-3045. [PMID: 35503606 DOI: 10.26355/eurrev_202204_28635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Post-COVID-19 syndrome appears to be a multi-organ illness with a broad spectrum of manifestations, occurring after even mild acute illness. Limited data currently available has suggested that vitamin D deficiency may play a role in COVID-19 cases. However, to our knowledge, no study has examined the frequency of vitamin D deficiency in post-COVID-19 cases and its effect on the symptom severity. The aim of this study is to both screen the frequency of vitamin D deficiency in post-COVID-19 syndrome patients and to study its relation to persistent symptoms. PATIENTS AND METHODS A cross-sectional, single-center study was conducted involving all cases attending post-COVID-19 follow-up clinic from November 2020 to May 2021. Complete history, clinical examination, and laboratory analysis [kidney functions, serum calcium, C-reactive protein, serum ferritin, Serum 25-(OH) vitamin D] was done as well as HRCT chest. RESULTS The study included 219 post-COVID-19 cases, 84% had deficient vitamin D levels (< 20 ng/dL); 11.4% had insufficient level (20-30 ng/dL) and only 4.9 % reported normal level. There was no link between levels of vitamin D with either the acute or post-COVID-19 symptoms in the studied groups. CONCLUSIONS Despite the prevalence of vitamin D deficiency among the study population, no association was observed between the levels of vitamin D and post-COVID-19 symptoms. It appears that post-COVID-19 syndrome pathophysiology involves a more complex interaction with the immune system. Dedicated clinical trials are advised to better study vitamin D levels and the related disease severity in COVID-19 patients.
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Eid RA, Attia AM, Hassan M, Shaker MA, Kamal MA. Demographic, clinical, and laboratory characteristics of patients with COVID-19 during the second and third waves of the pandemic in Egypt. J Infect Public Health 2021; 14:1358-1366. [PMID: 34511379 PMCID: PMC8364141 DOI: 10.1016/j.jiph.2021.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel virus that belongs to the coronaviruses and causes coronavirus disease 2019 (COVID-19). In this study, we explored the demographic details, clinical features, and routinely conducted laboratory investigations of patients with COVID-19 during the second and third waves of the pandemic to understand their possible diagnostic and prognostic values in Egypt. METHODS In this retrospective cohort study, the demographic characteristics, detailed medical history, laboratory findings, and symptoms of all enrolled patients with SARS-CoV-2 were collected from the medical records of Beni Suef University Hospitals between December 15, 2020, and April 15, 2021. RESULTS This retrospective study included 473 patients, almost all of whom were elderly. The median age of the patients was 48 years, and those with moderate and severe disease were older than those with mild infections. The proportion of females was higher (63.4%) than males (36.6%). Diabetes mellitus (DM) was the most common comorbidity (17.3%), and fever was the most typical manifestation of COVID-19 (62.6%). Those with severe disease showed a higher C-reactive protein level (CRP) than those with moderate (p-value 0.009) or mild (p-value 0.01) diseases. Serum ferritin levels were significantly higher in patients with severe disease than in those with moderate disease (p-value 0.018). In contrast, d-dimer and serum creatinine were normal and showed no significant difference in all comparisons (p-value overall 0.21). CONCLUSION This study observed several variations in COVID-19 patients' characteristics. The new manifestations included skin rash, bone and low back pains, and rigors. In contrast to females, most males had moderate-to-severe illness. Old age and higher body mass index was associated with increasing severity. d-dimer and complete blood count were normal and could not identify potential COVID-19 patients. Patients who had mild illness were still at risk of developing post-COVID complications.
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Affiliation(s)
- Ragaey A Eid
- Department of Tropical Medicine, Faculty of Medicine, Beni-Suef University, Egypt.
| | | | - Mahmoud Hassan
- Lecturer of Internal Medicine, Department of Internal Medicine, Faculty of Medicine, Beni-Suef University, Egypt
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Ammar AM, Attia AM, Abd El-Hamid MI, El-Shorbagy IM, Abd El-Kader SA. Genetic basis of resistance waves among methicillin resistant Staphylococcus aureus isolates recovered from milk and meat products in Egypt. Cell Mol Biol (Noisy-le-grand) 2016; 62:7-15. [PMID: 27609468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
Antimicrobial resistance of methicillin-resistant Staphylococcus aureus (MRSA) poses a serious problem for clinicians worldwide. The present study attempted to evaluate the susceptibility patterns of MRSA to various antimicrobials and the prevalence of inducible clindamycin resistance as well as the relevant antibiotic and antiseptic resistance genes among these isolates. Totally, 40 MRSA isolates were recovered from examined milk and meat product samples (18.60%). Multi-drug resistance (MDR) was remarkably observed among 85% of these isolates. There was a good correlation between phenotypic determination of methicillin, amoxicillin/clavulinic acid and tetracycline resistances and PCR detections of mecA, blaZ and tet(K) genes, respectively, but norA gene was not detected in the four ciprofloxacin resistant isolates. Although, 55% of MRSA expressed resistance to benzalkonium chloride (BC), neither qacA/B nor smr gene was detected. Of 20 isolates exhibiting erythromycin- clindamycin discordant resistance pattern, 8 displayed positive double disk diffusion (D-zone) test denoting inducible macrolide-lincosamide-streptogramin B (MLSB) resistance phenotype with the inducibly expressed erm(A) and erm(C) genes in 87.5% of these isolates. Besides, the remaining 12 isolates showed MS phenotype (resistant to macrolides and type B streptogramins only) with a variety of erm(A), mph(C), msr(A) or a combination of these genes including erm(C). Finally, the constitutive MLSB phenotype with the constitutive expression of erm(A), erm(B) and erm(C) genes was comprised in 2 isolates with higher minimum inhibitory concentration (MIC) values for erythromycin (512 and 1024 µg/ml) and clindamycin (16 and 32 µg/ml). These findings suggested the importance of monitoring the evolution of MRSA resistance.
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Affiliation(s)
- A M Ammar
- Zagazig University Department of Microbiology, Faculty of Veterinary Medicine Sharkia Egypt
| | - A M Attia
- Zagazig University Department of Microbiology, Faculty of Veterinary Medicine Sharkia Egypt
| | - M I Abd El-Hamid
- Zagazig University Department of Microbiology, Faculty of Veterinary Medicine Sharkia Egypt
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13
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Abstract
Xanthoma disseminatum (XD) is a rare, benign, non-Langerhans cell histiocytic disorder. The pathogenesis is not clear. It manifests with multiple, grouped, red-brown to yellow papules and nodules involving the skin, mucous membranes, and internal organs. We present a case of progressive XD in a 10-year-old male child. The patient presented with progressive, bilateral and symmetrical, reddish-brown, coalescent papules on the neck, around both eyes and all over his trunk and extremities. Skin lesions were accompanied by blurred vision and hoarseness of voice. Examination revealed xanthomatous infiltration of cornea, oral, pharyngeal, and laryngeal mucosae. The patient had diabetes insipidus that was diagnosed 2 years before the appearance of skin lesions. Medical treatment with corticosteroids (20 mg/day) and azathioprine (2 mg/kg/day) did not stop the disease progression.
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Affiliation(s)
| | - O A Bakry
- Department of Dermatology, Andrology and Sexually Transmitted Diseases, Faculty of Medicine, Menoufiya University, Menoufiya, Egypt
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14
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Ammar AM, Attia AM, Abd El-Aziz NK, Abd El-Hamid MI, Aggour MG, El-Demerdash AS. Class 1 Integron-Associated Multidrug Resistance in Some Food Borne Pathogens. Zagazig Veterinary Journal 2014; 42:197-210. [DOI: 10.21608/zvjz.2014.59484] [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: 09/01/2023]
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Abstract
This study aimed to assess seminal plasma fibronectin in fertile and infertile males. Ninety infertile males were investigated; asthenozoospermia (n = 27), asthenoteratozoospermia (n = 30), oligoasthenoteratozoospermia (n = 33) compared with 20 healthy fertile controls. They were subjected to semen analysis, seminal plasma fibronectin estimation by radial immune diffusion, serum testosterone (T) and follicle stimulating hormone (FSH) estimation by ELISA. There was significant increase of seminal plasma fibronectin among different infertile groups compared with the controls. Significant negative correlation was elicited between seminal fibronectin and sperm count, sperm motility grades A, B, A + B, sperm velocity, linear velocity, linearity index, sperm normal forms and serum T. Seminal fibronectin showed significant positive correlation with grade D sperm motility and serum FSH. ROC curve analysis discriminating controls and other infertile groups demonstrated criteria value of < 674 mg l(-1) (sensitivity 100% and specificity 96.4%). It is concluded that increased seminal fibronectin is associated with decreased sperm count and sperm motility.
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Affiliation(s)
- A M Attia
- Department of Dermatology and Andrology, Faculty of Medicine, Minofiya University, Egypt
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16
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Ibrahim HK, Attia AM, Ghorab MM. Biopharmaceutical evaluation of formulated metformin/rosiglitazone tablets. Drug Discov Ther 2010; 4:100-108. [PMID: 22491167] [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: 05/31/2023]
Abstract
The study aimed to combine two antidiabetic agents with different mechanisms of action, namely, metformin HCl and rosiglitazone maleate, in a tablet to improve glycemic control in patients with type II diabetes. The preformulation study started with development and validation of an HPLC method for the determination of both drugs in the mixture. The results of visual inspection, TLC, DSC, and FT-IR verified the absence of any physical or chemical interaction between both compounds. Four compatible excipients were selected for the formulation of the tablets by wet granulation according to a 2(2) factorial design. The prepared tablet blends were acceptable in terms of the modal size of particle distribution, bulk density, Hausner's ratio, Carr's index, and flowability. All formulations fulfilled the pharmacopoeial specifications for weight variation, content uniformity, friability, and hardness. They released 100% of the drug during the first 45 min, displaying higher dissolution efficiency than commercially available Rosiplus tablets. The tablet formulation that passed the physical and chemical stability study for 24 months at ambient conditions was tested in vivo on healthy volunteers in a cross-over design. Statistical analysis proved that the prepared tablets were bioequivalent to the commercial ones in terms of both the rate and the extent of absorption.
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Affiliation(s)
- H K Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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17
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Abstract
BACKGROUND Male factor infertility accounts for 50% of all infertility. The treatment of idiopathic male infertility is empirical. Urinary, purified, and recombinant gonadotrophins have been used to improve sperm parameters in idiopathic male infertility with the goal of increasing pregnancy rates. Research addressing pregnancy rates in partners of men treated with gonadotrophins has had conflicting results and needs to be analysed. OBJECTIVES To determine the effectiveness of gonadotrophin administration in men with idiopathic subfertility in improving spontaneous pregnancy rate and in assisted reproductive technique cycles. SEARCH STRATEGY We searched the Cochrane Menstrual Disorders and Subfertility Group trials register (31 May 2007), the Cochrane Central Register of Controlled Trials (The Cochrane Library, issue 2, 2007), MEDLINE (1966 to May 2007), EMBASE and Biological Abstracts (1980 to Week 21 2007). Searches were not limited by language. The bibliographies of included, excluded trials and abstracts of major meetings were searched for additional trials. Authors and pharmaceutical companies were contacted for missing and unpublished data. SELECTION CRITERIA Truly randomised controlled trials where gonadotrophins were administered for the treatment of idiopathic male subfertility with reporting of pregnancy rates were included in the review. DATA COLLECTION AND ANALYSIS Two reviewers independently assessed trial quality and extracted data. Study authors were contacted for additional information. Adverse effects information was collected from the trials. We analysed data regarding pregnancy occurring within three months after gonadotrophin therapy. MAIN RESULTS Four RCTs with 278 participants were included in the analysis. None of the studies had an adequate sample size and they had variable follow-up periods. None of the studies reported live birth or miscarriage rates. Compared to placebo or no treatment, gonadotrophins showed a significantly higher pregnancy rate per couple randomized within three months of completing therapy ( OR 4.17, 95% CI 1.30 to 7.09). AUTHORS' CONCLUSIONS The number of trials and participants is insufficient to draw final conclusions. A large multicenter study with adequate power is needed.
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Affiliation(s)
- A M Attia
- Faculty Of Medicine, Cairo University, Obstetrics and Gynaecology, 18 El-Ghaith St., El-Agouza, Cairo, Egypt, 12311.
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Abstract
BACKGROUND Male factor infertility accounts for 50% of infertility. The treatment of idiopathic male infertility is empirical. Urinary, purified, and recombinant gonadotrophins have been used to improve sperm parameters in idiopathic male infertility with the goal of increasing pregnancy rates. Research addressing pregnancy rates in partners of men treated with gonadotrophins has had conflicting results and needs to be analysed. OBJECTIVES To determine the effectiveness of gonadotrophin administration to men with idiopathic subfertility on spontaneous pregnancy rate and in assisted reproductive techniques (ARTs). SEARCH STRATEGY We searched the Cochrane Menstrual Disorders and Subfertility Group trials register (19 November 2004), the Cochrane Central Register of Controlled Trials (The Cochrane Library, issue 4, 2004), MEDLINE (1966 to April 2005), EMBASE and Biological Abstracts (1980 to November 2004). Searches were not limited by language. The bibliographies of included, excluded trials and abstracts of major meetings were searched for additional trials. Authors and pharmaceutical companies were contacted for missing and unpublished data. SELECTION CRITERIA Truly randomised controlled trials where gonadotrophins were administered for the treatment of idiopathic male subfertility with reporting of pregnancy rates were included in the review. DATA COLLECTION AND ANALYSIS Two reviewers independently assessed trial quality and extracted data. Study authors were contacted for additional information. Adverse effects information was collected from the trials. We analysed data regarding pregnancy occurring within 3 months after gonadotrophin therapy. MAIN RESULTS Four RCTs with 278 participant were included in the analysis. None of the studies had an adequate sample size and they had variable follow-up periods. None of the studies reported live birth or miscarriage rates. Compared to placebo or no treatment, gonadotrophins showed a significantly higher pregnancy rate per couple randomized within 3 months of completing therapy (OR 3.03, 95% CI 1.30 to 7.09). Pregnancy rate was 13.4% (19/142) in the gonadotrophin group and 4.4% (6/136) in the control group. AUTHORS' CONCLUSIONS The number of trials and participants is insufficient to draw final conclusions. A large multicenter study with adequate power is needed.
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Affiliation(s)
- A M Attia
- Faculty Of Medicine, Cairo University, Obstetrics and Gynaecology, 18 El-Ghaith St., El-Agouza, Cairo, Egypt, 12311.
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19
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Attia AM, Al-Inany HG, Proctor ML. Gonadotrophins for male factor subfertility. Hippokratia 2005. [DOI: 10.1002/14651858.cd005071] [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: 11/08/2022]
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Elgemeie GE, Attia AM, Alkabai SS. Nucleic acid components and their analogues: new synthesis of bicyclic thiopyrimidine nucleosides. Nucleosides Nucleotides Nucleic Acids 2000; 19:723-33. [PMID: 10960031 DOI: 10.1080/15257770008035020] [Citation(s) in RCA: 20] [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: 10/23/2022]
Abstract
A novel synthesis of condensed bicyclic thiopyrimidine glycosides utilising 1H-cyclopentapyrimidine-2(3H)-thiones and alpha-bromoglucose or alpha-bromogalactose tetraacetate as starting components is described.
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Affiliation(s)
- G E Elgemeie
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
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21
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Attia AM. Possible involvement of beta-adrenergic receptors in the enhancement of nocturnal pineal N-acetyltransferase activity due to parathion administration. Toxicology 2000; 142:79-86. [PMID: 10685507 DOI: 10.1016/s0300-483x(99)00106-7] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of the present study was to examine the effects of administration of sublethal doses of O,O-diethyl-O-p-nitrophenyl phosphorothioate (parathion) on serum epinephrine (EPI) and norepinephrine (NE), as well as on night-time rat pineal melatonin synthesis, both in the presence and absence of propranolol, a beta-adrenergic receptor antagonist. In the first experiment, two groups of adult albino rats were administered parathion orally (1.08 and 2.17 mg/kg/day; the total received by each animal was 6.5 and 13.0 mg/kg body weight over 6 days); another two groups received corn oil only. Animals were killed at 23:00 and 01:00 h by decapitation. Serum EPI was augmented at 01:00 h, but NE was increased at 01:00 and 23:00 h due to administration of the high dose of parathion (13 mg/kg). In the second experiment, two groups of adult male albino rats were administered parathion orally (13 mg/kg); another two groups received an intraperitoneal injection of propranolol (20 mg/kg body weight, 1 h before the lights were turned off). In addition, two groups were given a saline injection. Four hours after darkness onset, pineal N-acetyltransferase (NAT) activity as well as pineal and serum melatonin levels were measured. Parathion by itself significantly augmented nocturnal pineal NAT activity and serum melatonin levels in otherwise untreated rats; the insecticide was ineffective in reference to this enzyme when it was given in conjunction with the beta-adrenergic receptor antagonist propranolol. The augmentation of NAT activity by parathion also caused significant reduction in pineal serotonin (5-HT); again, this response was blocked by propranolol treatment. The results are consistent with the idea that parathion influences pineal 5-HT metabolism either at the level of the beta-adrenergic receptor or via the sympathetic innervation to the pineal gland.
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Affiliation(s)
- A M Attia
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria, Egypt
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22
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Abstract
A synthesis of 1-(beta-D-ribofuranosyl)-pyridin-2-thiones via reaction of 3-cyanopyridin-2(1H)-thiones with 2,3,5-tri-O-benzoyl-D-ribofuranosyl bromide under basic conditions, followed by hydrolysis with methanolic ammonia is reported.
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Affiliation(s)
- A M Attia
- Department of Chemistry, Faculty of Education, Tanta University, Kafr El- Sheikh, Egypt
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23
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Abstract
N3-beta-D-glucopyranosyl, galactopyranosyl and xylopyranosyl 6-methyl-2-methylthiouracil and their 5-bromo derivatives have been synthesized by coupling an alpha-acetobromosugar with the corresponding thiouracil. The new modified thiouridine analogues were evaluated for their inhibitory activity against Human Immunodeficiency Virus (HIV) replication in MT-4 cells as well as for their cytotoxicity.
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Affiliation(s)
- A M Attia
- Department of Chemistry, Faculty of Education, Tanta University, Kafr El- Sheikh, Egypt
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Attia AM, Elgemeie GH, Alnaimi IS. Synthesis of 1-(beta-D-glycopyranosyl)-3-deazapyrimidines from 2-hydroxy and 2-mercaptopyridines. Nucleosides Nucleotides 1998; 17:1355-63. [PMID: 9672701 DOI: 10.1080/07328319808003474] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The synthesis of new 4- and 5-substituted-3-cyanopyridine nucleosides has been performed by reacting the silylated pyridines and penta-omicron-acetyl-alpha -D-glycopyranose in dichloroethane in the presence of SnCl4. The free nucleosides were tested for their potential activity against HIV and different types of tumor.
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Affiliation(s)
- A M Attia
- Chemistry Department, Faculty of Science, Qatar University, Doha, Egypt
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25
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Elgemeie GE, Attia AM, Hussain BA. A synthetic strategy to a new class of cycloalkane ring-fused pyridine nucleosides as potential anti HIV agents. Nucleosides Nucleotides 1998; 17:855-68. [PMID: 9708328 DOI: 10.1080/07328319808003458] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Condensation of cyanothioacetamide or cyanoacetamide with sodium salts of 2-formyl-1-cycloalkanones afforded the corresponding cycloalkane ring fused pyridine-2(1H)-thiones and -2-pyridones. The latter compounds served as a key intermediates for the synthesis of a new class of cycloalkane ring fused pyridine glycosides.
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Affiliation(s)
- G E Elgemeie
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
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26
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Attia AM, Vaughan MK, Rodriguez C, Reiter RJ. Lindane and DDT-induced changes in rat harderian N-acetyltransferase activity, melatonin levels, and porphyrin concentration. Bull Environ Contam Toxicol 1995; 55:14-21. [PMID: 7545037 DOI: 10.1007/bf00212383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Affiliation(s)
- A M Attia
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762, USA
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Attia AM, Mostafa MH, Richardson BA, Reiter RJ. Changes in nocturnal pineal indoleamine metabolism in rats treated with parathion are prevented by beta-adrenergic antagonist administration. Toxicology 1995; 97:183-9. [PMID: 7716784 DOI: 10.1016/0300-483x(94)02947-s] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Parathion, an organophosphorous insecticide, was previously shown to enhance the nighttime rise in pineal N-acetyltransferase (NAT) activity and serum melatonin levels. The purpose of the present study was to test whether parathion acts on the pineal gland by means of a beta-adrenergic receptor mechanism. Whereas parathion (total dose 6.5 mg/kg body wt over 6 days) by itself significantly augmented nocturnal pineal NAT activity and serum melatonin levels in otherwise untreated rats, the insecticide was ineffective in reference to this enzyme when it was given in conjunction with the beta-adrenergic receptor antagonist propranolol (20 mg/kg body wt, 1 h before lights off). The augmentation of NAT activity by parathion also caused significant reductions in pineal serotonin (5-HT); again, this response was blocked by propranolol treatment. Neither pineal hydroxyindole-O-methyltransferase (HIOMT) activity nor pineal levels of 5-hydroxytryptophan or hydroxyindole acetic acid (5-HIAA) were significantly changed as a result of either parathion or propranolol treatment. The results are consistent with the idea that parathion influences pineal 5-HT metabolism either at the level of the beta-adrenergic receptor or via the sympathetic innervation to the pineal gland.
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Affiliation(s)
- A M Attia
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria, Egypt
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Attia AM, Mostafa MH, Richardson BA, Reiter RJ. Night-time rise in rat pineal N-acetyltransferase due to carbaryl administration is reduced by propranolol treatment. Biomed Environ Sci 1995; 8:45-53. [PMID: 7605599] [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: 05/21/2023]
Abstract
The purpose of the present study was to examine the effects of administration of sublethal doses of carbaryl on nighttime rat pineal melatonin synthesis in the presence and absence of propranolol, a beta-adrenergic receptor antagonist. Two groups of adult male albino rats were administered orally N-methyl-l-naphthylcarbamate (carbaryl) (8.33 mg/kg BW daily in corn oil) for six successive days; another two groups received corn oil only. On the last day of carbaryl treatment, half of the animals received an intraperitoneal injection of propranolol (20 mg/kg body weight, one hour before lights off). The other two groups were given a saline injection. Four hours after darkness onset, pineal N-acetyltransferase (NAT) and hydroxyindole-O-methyltransferase (HIOMT) activities as well as pineal concentrations of 5-hydroxytryptophan (5HTP), serotonin (5HT), 5-hydroxyindole acetic acid (5HIAA) and pineal and serum melatonin levels were measured. Nocturnal NAT activity was increased due to carbaryl administration but the pesticide was ineffective in stimulating NAT activity in rats treated with propranolol. Pineal 5HT was decreased due to carbaryl administration but 5HTP and 5HIAA levels were unaffected. Pineal and serum melatonin levels were decreased due to propranolol treatment. The results indicate that carbaryl may influence pineal NAT activity by a mechanism that involves beta-adrenergic neural transmission.
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Affiliation(s)
- A M Attia
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria, Egypt
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Abstract
The in vivo effect of melatonin on paraquat-induced oxidative damage in rat lung and liver was studied using two parameters: the concentration of malonaldehyde and 4-hydroxyalkenals as indices of lipid peroxidation; changes in total and oxidized glutathione. Melatonin (10 mg/kg) or an equal volume of saline were administered intraperitoneally (ip) to rats 30 min prior to an ip injection of paraquat (20 mg/kg or 70 mg/kg). After paraquat treatment, the animals received melatonin or saline ip injections every six hours for 24 hours. Rats were killed 24 hours after paraquat injection. In lung, both the low and high dose of paraquat, when administered with saline, augmented lipid peroxidation (100% and 18%, respectively) above levels found in control animals. Treatment with melatonin completely reversed this effect. In liver, paraquat (70 mg/kg) increased lipid peroxidation by 40% over the levels of control animals. The increase was completely abolished by treatment with melatonin. Paraquat at 20 mg/kg did not induce any significant change in liver lipid peroxidation. Paraquat treatment resulted in a significant decrease of total glutathione concentration and increased oxidized glutathione in both lung and liver. These effects were abolished by treatment with melatonin. The results suggest that melatonin confers marked protection against paraquat-induced oxidative toxicity in both the lung and liver.
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Affiliation(s)
- D Melchiorri
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio 78284-7762
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Shamy MY, el Gazzar RM, el Sayed MA, Attia AM. Study of some biochemical changes among workers occupationally exposed to phenol, alone or in combination with other organic solvents. Ind Health 1994; 32:207-214. [PMID: 7591850 DOI: 10.2486/indhealth.32.207] [Citation(s) in RCA: 4] [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] [Indexed: 05/21/2023]
Abstract
The present study was aimed for the effects of exposure to multiple organic solvent vapors in comparison with single exposure to phenol. It included 20 workers exposed to phenol alone and 32 workers of combined exposure to phenol, benzene, toluene and methyl ethyl ketone. A control group of 30 subjects was also included. The levels of transaminases, total proteins, prothrombin time, bleeding time, clotting time, fasting blood sugar, serum creatinine and some trace elements (copper, zinc, iron, magnesium, manganese and calcium) were determined in blood together with a complete blood picture. Urine samples were analyzed for phenol, hippuric acid and methyl ethyl ketone. The effects of combined exposure did not differ from that of exposure to phenol alone concerning the majority of the tested parameters. Only the levels of platelets count, prothrombin time, eosinophils, copper and iron have been affected by combined exposure in a probably additive manner.
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Affiliation(s)
- M Y Shamy
- High Institute of Public Health, Hadara, Alexandria, Egypt
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31
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al-Mogazy HM, al-Khadra S, Kenawy G, al-Zeftawy A, Mostafa T, Attia A, Attia AM. Correlation between human sperm hypo-osmotic swelling test and other semen parameters. J Clin Lab Anal 1993; 7:243-6. [PMID: 8360800 DOI: 10.1002/jcla.1860070410] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Ninety semen samples from male patients were studied. They were classified into 4 different groups; normospermic fertile, oligospermia, asthenospermia, and oligoasthenospermia. In addition to routine semen analysis, the hypo-osmotic swelling test was done for all these samples, measuring total protein and specific gravity. A significant positive correlation was observed between percent sperm swelling and its motility, its total protein, and specific gravity. Also a significant negative correlation was noticed between percent sperm swelling and its count. Although there were overlapping ranges, different groups showed significant relations of percent sperm swelling among themselves. It is postulated that the sperm quality and not its quantity is the cornerstone of the hypo-osmotic test and that the physico-chemical properties of the sperm influences its swelling.
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Attia AM, Richardson BA, Rodriguez C, Mostafa MH, Soliman SA, el-Sebae AH, Reiter RJ. Lindane may enhance nocturnal pineal N-acetyltransferase activity via beta-adrenergic receptors. Brain Res 1991; 554:253-6. [PMID: 1718548 DOI: 10.1016/0006-8993(91)90197-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 12/28/2022]
Abstract
Lindane, a chlorinated hydrocarbon pesticide, was previously shown to enhance the nighttime rise in pineal N-acetyltransferase (NAT) activity and melatonin as well as serum melatonin levels. The purpose of the present study was to test whether lindane acts on the pineal gland by means of a beta-adrenergic receptor mechanism. Whereas lindane (total dose 17.8 mg/kg b.wt. over 6 days) by itself significantly augmented the nocturnal levels of pineal NAT activity in otherwise untreated rats, the pesticide was ineffective in reference to this enzyme when it was given in conjunction with the beta-adrenergic receptor antagonist propranolol (20 mg/kg b.wt., one hour before lights off). The augmentation of NAT activity by lindane also caused significant reductions in pineal serotonin (5-HT) and 5-hydroxyindole acetic acid (5-HIAA); again, both these responses were blocked by propranolol treatment. Neither pineal 5-hydroxytryptophan nor pineal or serum melatonin levels were significantly changed as a result of either lindane or propranolol treatment. The results are consistent with the idea that lindane influences pineal 5-HT metabolism either at the level of the beta-adrenergic receptor or via the sympathetic innervation to the pineal gland.
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Affiliation(s)
- A M Attia
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762
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Attia AM, Reiter RJ, Stokkan KA, Mostafa MH, Soliman SA, el-Sebae AK. Parathion (O,O-dimethyl-O-p-nitrophenyl phosphorothioate) induces pineal melatonin synthesis at night. Brain Res Bull 1991; 26:553-7. [PMID: 1714339 DOI: 10.1016/0361-9230(91)90095-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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: 12/28/2022]
Abstract
The effects of parathion on male rat pineal N-acetyltransferase (NAT) activity, hydroxyindole-O-methyltransferase (HIOMT) activity and pineal and serum melatonin levels at the end of light period (2000 h) and at night (2300 h and 0100 h) were studied. Additionally, pineal levels of 5-hydroxytryptophan (5-HTP), serotonin (5-HT), and 5-hydroxyindole acetic acid (5-HIAA) were estimated. Parathion was administered intragastrically at total doses (over 6 days) of either 6.5 or 13 mg/kg. Control rats received vehicle (corn oil) only. During the study, the rats were exposed to light:dark cycles of 14:10 with light off at 2100 h. Pineal NAT activity was increased at 0100 h following parathion administration at both doses, but HIOMT activity was unaffected. Pineal and serum melatonin levels were increased at night (2300 h and 0100 h) after the 13 mg/kg dose of parathion while the lower dose increased pineal melatonin only at 0100 h. Also, both doses decreased 5-HTP at 2000 h while the lower dose increased it at 2300; 5-HT was significantly decreased at 2300 h and 5-HIAA levels were lower but only significantly so for the 13 mg/kg dose at 2000 h. The results indicate that parathion has significant effects on pineal melatonin synthesis by mechanisms which remain unknown.
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Affiliation(s)
- A M Attia
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762
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Attia AM, Reiter RJ, Nonaka KO, Mostafa MH, Soliman SA, el-Sebae AH. Carbaryl-induced changes in indoleamine synthesis in the pineal gland and its effects on nighttime serum melatonin concentrations. Toxicology 1991; 65:305-14. [PMID: 1704155 DOI: 10.1016/0300-483x(91)90089-j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 12/28/2022]
Abstract
The effects of different doses of chronically administered carbaryl on rat pineal N-acetyltransferase (NAT) activity, hydroxyindole-O-methyltransferase (HIOMT) activity and pineal and serum melatonin levels during darkness (2300 h and 0100 h) when pineal melatonin synthesis is high were studied. Additionally, pineal levels of 5-hydroxytryptophan (5-HTP), serotonin (5-HT) and 5-hydroxyindole acetic acid (5-HIAA) were estimated. Carbaryl was administered at total doses (over 6 days) of either 50, 125 or 250 mg/kg by gastric gavage. Control rats received vehicle (corn oil) only. During the study, the rats were exposed to light/dark cycles of 14:10 with lights off at 2100 h. Pineal NAT and HIOMT activities and pineal melatonin were increased at 0100 h following carbaryl administration at all three doses. Conversely, serum melatonin was increased at 2300 h after the 250 mg/kg dose of carbaryl while all three doses of the pesticide reduced serum melatonin levels at 0100 h. Pineal 5-HTP, 5-HT and 5-HIAA levels were usually increased at 2300 h but unaffected at 0100 h. The results indicate that carbaryl has significant effects on pineal melatonin synthesis and secretion.
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Affiliation(s)
- A M Attia
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762
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Attia AM, Reiter RJ, Withyachumnarnkul B, Mostafa MH, Soliman SA, el-sebae AK. Chronic administration of sublethal doses of carbaryl increases pineal N-acetyltransferase and hydroxyindole-O-methyltransferase activities and serum melatonin levels. J Pineal Res 1991; 10:49-54. [PMID: 1711578 DOI: 10.1111/j.1600-079x.1991.tb00009.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The purpose of this study was to examine the effects of chronic administration of sublethal doses of carbaryl on pineal melatonin synthesis. N-methyl 1-naphthylcarbamate (carbaryl) (8.33 mg/kg B.W. daily) was administered orally to adult male albino rats for 6 successive days. Nocturnal (0100) N-acetyltransferase and hydroxyindole-O-methyltransferase activities were increased (roughly 75% and 60%, respectively) by carbaryl administration; likewise, carbaryl augmented serum melatonin levels at 2300. Pineal tryptophan. 5-hydroxytryptophan, serotonin, and 5-hydroxindole acetic acid levels were unaffected at all three time points. The results indicate that the carbamate pesticide, i.e., carbaryl, modifies pineal melatonin synthesis in vivo.
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Affiliation(s)
- A M Attia
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio 78284-7762
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Withyachumnarnkul B, Nonaka KO, Santana C, Attia AM, Reiter RJ. Interferon-gamma modulates melatonin production in rat pineal glands in organ culture. J Interferon Res 1990; 10:403-11. [PMID: 2121852 DOI: 10.1089/jir.1990.10.403] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The effect of interferon-gamma (IFN-gamma) on melatonin production was determined in rat pineal glands in organ culture. IFN-gamma enhanced the production of melatonin in the glands incubated with either 10 nM or 1,000 nM isoproterenol (ISO, a beta-adrenergic receptor agonist) but decreased the 100 nM ISO response. The enhanced melatonin production was accompanied by either unchanged or a lower level of N-acetyltransferase (NAT) activity, whereas the suppression was accompanied by a reduced NAT activity. IFN-gamma did not change the activity of the enzyme hydroxyindole-O-methyltransferase (HIOMT) in the ISO-stimulated pineal glands. The results indicate that IFN-gamma has a dual action on the pineal gland: One is to increase melatonin production through yet unknown mechanisms, and the other is to suppress NAT activity. These results also suggest that the pineal gland, under physiological stimulation, is modulated by IFN-gamma to increase melatonin production. A hypothetical model is proposed to explain the delicate regulation of pineal function by the immune system.
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Affiliation(s)
- B Withyachumnarnkul
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762
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Attia AM, Mostafa MH, Soliman SA, el-Sebae AH, Nonaka KO, Withyachumnarnkul B, Reiter RJ. The organochlorine insecticide 1,2,3,4,5,6-hexachlorocyclohexane (lindane) but not 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) augments the nocturnal increase in pineal N-acetyltransferase activity and pineal and serum melatonin levels. Neurochem Res 1990; 15:673-80. [PMID: 1697652 DOI: 10.1007/bf00973647] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [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: 12/28/2022]
Abstract
The effect of organochlorine insecticides lindane (1,2,3,4,5,6-hexachlorocyclohexane) and DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane) were studied in terms of their effects on the rat pineal N-acetyltransferase (NAT) activity, hydroxyindole-O-methyltransferase (HIOMT) activity and pineal and serum melatonin levels during the day (2000h) and at night (2300 and 0100h). Additionally, pineal levels of 5-hydroxytryptophan (5-HTP), serotonin (5-HT), and 5-hydroxyindole acetic acid (5-HIAA) were estimated. Nocturnal NAT activity was increased after lindane administration; likewise, lindane augmented pineal and serum melatonin levels at 2300h. Conversely, DDT was without a statistically significant effect on either NAT activity or on pineal or serum melatonin levels. Neither lindane nor DDT significantly influenced pineal HIOMT values either during the day or at night. Likewise, neither insecticide consistently influenced pineal levels of either 5-HTP, 5-HT or 5-HIAA. The results indicate that the organochlorine insecticide, lindane, modifies pineal melatonin synthesis in vivo.
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Affiliation(s)
- A M Attia
- Department of Environmental Science, Institute of Graduate Studies and Research, Alexandria, Egypt
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Abstract
The purpose of this study was to test the effects of recombinant rat interferon-gamma (IFN-gamma) on rat pineal function in organ culture. The glands were pre-incubated with IFN-gamma (50, 100, and 1,000 antiviral units/ml) for two hours, followed by a stimulation with isoproterenol (ISO, 10(-6) M) (in the presence of IFN-gamma) for an additional three hours. The effect of IFN-gamma alone on the pineal function was also tested by adding another group incubated with IFN-gamma (1,000 antiviral units/ml) without ISO stimulation. The following parameters were estimated at the end of the incubation: the activities of N-acetyltransferase (NAT) and hydroxyindole-O-methyltransferase (HIOMT), the levels of melatonin, 5-hydroxytryptophan (5HTP), 5-hydroxytryptamine (5HT), and 5-hydroxyindole acetic acid (5HIAA), and the 5HT/5HIAA ratio. IFN-gamma had no effect on either NAT or HIOMT activities in the pineal glands. At 50 units/ml, IFN-gamma increased the melatonin content over the ISO-stimulated level in the pineal but not in the media. IFN-gamma alone, at 1,000 units/ml, also increased the melatonin content significantly over the control level. The levels of 5HTP and 5HIAA were significantly suppressed by IFN-gamma, either alone or in combination with ISO. The level of 5HT was not altered by any of the treatments. The 5HT/5HIAA ratio was significantly increased by IFN-gamma, either when given alone or when given in combination with ISO. The results suggest that IFN-gamma enhances melatonin production in the pineal gland by suppressing the oxidative deamination of 5HT to 5HIAA and shunting the biosynthetic pathway toward melatonin production.
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Affiliation(s)
- B Withyachumnarnkul
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762
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Abstract
The effects of cigarette smoking on male reproduction were studied through measuring the serum estradiol (E2), prolactin (PRL), and total testosterone (T). Smoking men had higher levels of E2 and PRL but normal T compared to nonsmokers. Raised E2 and PRL may be among the mechanisms through which cigarette smoking impairs male reproduction.
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Affiliation(s)
- A M Attia
- Andrology and Dermatology Department, Monofeya University, Cairo, Egypt
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Aboutaleb AE, Attia AM, Habib FS. Effect of various disintegrants on the availability of directly compressed sulphadimidine tablets. Pharmazie 1983; 38:473-5. [PMID: 6634914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Sulphadimidine tablets were prepared using 50% w/w of the following vehicles, Celutab, anhydrous lactose and Avicel. Various disintegrants 5% w/w were also incorporated e.g. Primojel, Veegum F, Amberlite, STA-Rx, Meprogat and Alginate YZ. It was found that the disintegration time of the various tablets containing different disintegrants was considerably decreased. The disintegrants increased also the dissolution rate of the various tablet formulations containing sulphadimidine by different extent. The variations in the dissolution rate among the various tablet formulations may be due to the difference in the nature of the disintegrants and their mechanism of action and possibly their interactions with the drug or the vehicle.
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