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Kamp K, Li N, Lachance DM, Saad K, Tolentino E, Yoo L, Heitkemper MM, Clark-Snustad K, Lee SD, Dey N. Interpersonal Variability in Gut Microbial Calprotectin Metabolism. Gastro Hep Adv 2022; 1:853-856. [PMID: 36160305 PMCID: PMC9494624 DOI: 10.1016/j.gastha.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Kamp
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - N Li
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - D M Lachance
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - K Saad
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - E Tolentino
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - L Yoo
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - M M Heitkemper
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, Washington
| | - K Clark-Snustad
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - S D Lee
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
| | - N Dey
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, Washington
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
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Krautmann M, Walters R, Cole P, Tena J, Bergeron LM, Messamore J, Mwangi D, Rai S, Dominowski P, Saad K, Zhu Y, Guillot M, Chouinard L. Laboratory safety evaluation of bedinvetmab, a canine anti-nerve growth factor monoclonal antibody, in dogs. Vet J 2021; 276:105733. [PMID: 34391918 DOI: 10.1016/j.tvjl.2021.105733] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/30/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022]
Abstract
Nerve growth factor (NGF), a critical mediator of nociception, is a novel analgesic therapeutic target. Bedinvetmab, a canine monoclonal antibody (mAb), binds NGF and inhibits its interaction with tropomyosin receptor kinase A (trkA) and p75 neurotrophin receptor (p75NTR) receptors. The objective of three integrated laboratory studies was to demonstrate the safety of bedinvetmab in adult laboratory Beagle dogs. Daily health, veterinary, clinical pathology, systemic exposure, and anti-drug antibody evaluations were performed. Study 1 additionally included electrocardiography, neurologic, and ophthalmic assessments, and radiographic monitoring of joints of the appendicular skeleton. Study 2 evaluated T-lymphocyte-dependent immune function. Study 3 evaluated the safety of short-term concurrent administration of carprofen, a nonsteroidal anti-inflammatory drug (NSAID), with bedinvetmab. Studies 1 and 3 included terminal pathology and histopathology evaluations. Study designs and procedures included directed complementary morphologic and functional evaluations of a literature- and in vitro-based list of potential safety issues related to the NGF signaling pathway and characteristics engineered into this mAb. Screening-level general procedures evaluated effects associated with mAbs that target and inhibit soluble agonist cytokines. There were no treatment-related adverse changes in clinical evaluations, clinical neurological and ophthalmic examinations, joints, immune morphology or function, and no effects of short-term concurrent NSAID usage. Treatment-emergent immunogenicity was not observed. Bedinvetmab (1 mg/kg SC monthly; 3× and 10× dose multiples) was well tolerated in normal laboratory Beagle dogs for 6 months and with 2 weeks' concurrent NSAID administration.
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Affiliation(s)
- M Krautmann
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA.
| | - R Walters
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - P Cole
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - J Tena
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - L M Bergeron
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - J Messamore
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - D Mwangi
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - S Rai
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - P Dominowski
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - K Saad
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - Y Zhu
- Zoetis Inc, 333 Portage Street, Kalamazoo, MI 49007, USA
| | - M Guillot
- Charles River Laboratories Montreal, ULC, Senneville, Quebec, Canada
| | - L Chouinard
- Charles River Laboratories Montreal, ULC, Senneville, Quebec, Canada
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Rare Tumors GI Group, Farhat F, Farsi AA, Mohieldin A, Bahrani BA, Sbaity E, Jaffar H, Kattan J, Rasul K, Saad K, Assi T, Morsi WE, Abood RA. Comprehensive review into the challenges of gastrointestinal tumors in the Gulf and Levant countries. World J Clin Cases 2020; 8:487-503. [PMID: 32110658 PMCID: PMC7031830 DOI: 10.12998/wjcc.v8.i3.487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/13/2019] [Accepted: 01/01/2020] [Indexed: 02/05/2023] Open
Abstract
Although gastrointestinal stromal tumors (GISTs) are rare, with an incidence of 1/100000 per year, they are the most common sarcomas in the peritoneal cavity. Despite considerable progress in the diagnosis and treatment of GIST, about half of all patients are estimated to experience recurrence. With only two drugs, sunitinib and regorafenib, approved by the Food and Drug Administration, selecting treatment options after imatinib failure and coordinating multidisciplinary care remain challenging. In addition, physicians across the Middle East face some additional and unique challenges such as lack of published local data from clinical trials, national disease registries and regional scientific research, limited access to treatment, lack of standardization of care, and limited access to mutational analysis. Although global guidelines set a framework for the management of GIST, there are no standard local guidelines to guide clinical practice in a resource-limited environment. Therefore, a group of 11 experienced medical oncologists from across the Gulf and Levant region, part of the Rare Tumors Gastrointestinal Group, met over a period of one year to conduct a narrative review of the management of GIST and to describe regional challenges and gaps in patient management as an essential step to proposing local clinical practice recommendations.
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Affiliation(s)
| | - Fadi Farhat
- Hammoud Hospital UMC, Saida PO Box 652, Lebanon
| | | | - Ahmed Mohieldin
- Medical Oncology Department, Kuwait Cancer Control Center, Kuwait PO Box 42262, Kuwait
| | - Bassim Al Bahrani
- Medical Oncology Department, Royal Hospital, Muscat PO Box 1331, Oman
| | - Eman Sbaity
- Division of General Surgery, American University of Beirut, Beirut 1107 2180, Lebanon
| | - Hassan Jaffar
- Oncology Department, Tawam Hospital, Al Ain PO Box 15258, United Arab Emirates
| | - Joseph Kattan
- Hemato-oncology Department, Hotel Dieu de France, Beirut, Lebanon
| | - Kakil Rasul
- Hemato-oncology Department, National Center for Cancer Care and Research, Doha, Qatar
| | - Khairallah Saad
- Pathology Department, Institute National de Pathologic, Beirut, Lebanon
| | - Tarek Assi
- Oncology Department, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Waleed El Morsi
- Pfizer Oncology-Emerging Markets, Dubai Media City, Dubai, United Arab Emirates
| | - Rafid A Abood
- Oncology Department, Basra College of Medicine, Basra, Iraq
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Saad K, Abdel-Rahman A, Elserogy Y, Al-Atram A, El-Houfey A, Othman H, Bjørklund G, Jia F, Urbina M, Abo-Elela M, Ahmad F, Abd El-Baseer A, Ahmed A, Abdel-Salam A. Retraction: Randomized controlled trial of vitamin D supplementation in children with autism spectrum disorder. J Child Psychol Psychiatry 2019; 60:711. [PMID: 31087556 DOI: 10.1111/jcpp.13076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The above article, published in print in the Jan 2018 issue of the Journal of Child Psychology & Psychiatry and online in Wiley Online Library (wileyonlinelibrary.com), has been retracted by the JCPP Editor-in-Chief, Edmund Sonuga-Barke, and John Wiley & Sons. Following a series of communications from readers highlighting concerns about the paper (now published on the journal website), the journal editors requested that the authors send them the raw data from the trial. In response the authors informed the editors that; (i) the electronic data base had been lost following a computer outage and (ii) that they could send only 95 out of 120 hard-copy participant data sheets as one site had closed and was no longer contactable. The substantial data loss in and of itself posed a serious difficulty in verifying the correctness of the data presented in the paper. The JCPP then analysed the data from the 95 cases itself. A number of significant discrepancies emerged between the re-analysis and the findings reported in the paper both in terms of means and standard deviations of key outcome variables across the trial. These involved very substantial differences that we judged to be extremely unlikely to have arisen due to variations in composition of the original and re-analysed samples. We also discovered previously unidentified/reported problems with missing data and recording irregularities regarding changes in treatment regimen and subject identifiers. As a result of these issues the Editors no longer have confidence in the findings reported in the original paper. Based on all these matters combined and following published guidance from the Committee on Publishing Ethics (COPE) and Wiley's Best Practice Guidelines on Publishing Ethics, we have decided that the only course of action available to us is to retract the paper.
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Saad K. Autism and Vitamin D. Open J Pediatr Child Health 2017. [DOI: 10.17352/pjpt.000013] [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: 02/05/2023]
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El Gatit A, Abdul Razeq M, El Snaini F, Saad K, Zaiton A. Reversible Cortical Blindness Following Successful Surgical Repair Of Two Stab Wounds In The Heart. Libyan J Med 2016. [DOI: 10.3402/ljm.v3i1.4752] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A. El Gatit
- Departments of Surgery, Cardiothoracic & Vascular Surgery Unit
| | | | | | - K. Saad
- Department of Medicine, Al Batnan Medical Centre, Faculty of Medicine, Omar Al Mokhtar University, Tobruk, Libya
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Saad K. Improving Pediatric Care for Epileptic Children - What Does the Pediatrician Needs to Know about Antiepileptic Drugs? Open J Pediatr Child Health 2015. [DOI: 10.17352/pjpt.000003] [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: 02/05/2023]
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El Gatit A, Abdul Razeq M, El Snaini F, Saad K, Zaiton A. Reversible cortical blindness following successful surgical repair of two stab wounds in the heart. Libyan J Med 2008; 3:52-3. [PMID: 21516165 PMCID: PMC3074331 DOI: 10.4176/071108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
This report describes a case of cortical blindness that followed successful surgical repair of two stab wounds in the heart in a 29-year old Libyan man. The patient presented in a state of pre cardiac arrest (shock and low cardiac output status), following multiple chest stab wounds. Chest tube was immediately inserted. Surgery was urgently performed suturing the two wounds; in the root of the aorta and in the left ventricle, and haemostasis was secured. Cardiac arrest was successfully prevented. The patient recovered smoothly, but 24 hours later he declared total blindness. Ophtalmic and neurological examinations and investigations that included fundoscopy, Electroencephalograms (EEGs) and Computed Tomography Scans revealed no abnormalities, apart from absence of alpha waves in the EEGs. We diagnosed the case as cortical blindness and continued caring for the patient conservatively. Three days later, the patient regained his vision gradually and was discharged on the 7th postoperative day without any remarks.
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Affiliation(s)
- A El Gatit
- Departments of Surgery, Cardiothoracic & Vascular Surgery Unit
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El Imam M, Omran M, Nugud F, Elsabiq M, Saad K, Taha O. Obstructive uropathy in Sudanese patients. Saudi J Kidney Dis Transpl 2006; 17:415-9. [PMID: 16970266] [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: 05/11/2023] Open
Abstract
In this paper we describe the causes, patterns of presentation, and management of obstructive uropathy in Sudanese patients in a retrospective multi-center audit. All patients who presented with obstructive uropathy during 2005 were included in this study. All of the patients were subjected to serial investigations including imaging and tests of renal function. Diversion, stenting, and/or definitive surgery were performed in order to relieve the obstruction. Five hundred twenty patients were diagnosed with obstructive uropathy during this period; 345 (66%) patients presented with chronic obstruction and 175 (34%) with acute obstruction. Of the study patients, 210 (40%) presented with significant renal impairment; 50 (23%) of them required emergent dialysis. The patterns of clinical presentation of the obstructed patients included pain at the site of obstruction in 48%, lower urinary tract symptoms in 42%, urine retention in 36.5%, mass effect in 22%, and anuria in 4%. Patients in the pediatric age group constituted 4% of the total. The common causative factors of obstruction included congenital urethral valves, pelvi-ureteral junction obstruction, urolithiasis, and iatrogenic trauma, especially in the obstetric practice. Renal function was completely recovered with early management in 100% of patients with acute obstruction and was stabilized in 90% of patients with chronic obstruction. Four patients were diagnosed with end-stage renal failure; two of them were transplanted. The mortality rate in this study was less than 0.3%.
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Affiliation(s)
- M El Imam
- Department of Surgery, Gezira University, P.O. Box 20, Medani, Sudan.
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Taylor LA, Carthy CM, Yang D, Saad K, Wong D, Schreiner G, Stanton LW, McManus BM. Host gene regulation during coxsackievirus B3 infection in mice: assessment by microarrays. Circ Res 2000; 87:328-34. [PMID: 10948068 DOI: 10.1161/01.res.87.4.328] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [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: 11/16/2022]
Abstract
Host genetic responses that characterize enteroviral myocarditis have not yet been determined. The injurious and inflammatory process in heart muscle may reflect host responses of benefit to the virus and ultimately result in congestive heart failure and dilated cardiomyopathy. On the other hand, host responses within the myocardium may secure the host against acute or protracted damage. To investigate the nature of modified gene expression in comparison with normal tissue, mRNA species were assessed in myocardium using cDNA microarray technology at days 3, 9, and 30 after infection. Of 7000 clones initially screened, 169 known genes had a level of expression significantly different at 1 or more postinfection time points as compared with baseline. The known regulated genes were sorted according to their functional groups and normalized expression patterns and, subsequently, interpreted in the context of viremic, inflammatory, and healing phases of the myocarditic process.
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Affiliation(s)
- L A Taylor
- Department of Pathology and Laboratory Medicine, University of British Columbia, St. Paul's Hospital, Vancouver, Canada
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Abstract
A case of larva migrans or serpiginous linear dermatitis on the scalp of a teenager is reported. An ancylostomid larva was found within a sebaceous gland acinus. The unusual skin site for larva migrans as well as the penetration through the sebaceous gland are highlighted. The probable mechanism by which the parasite reached the skin adnexa is discussed.
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Affiliation(s)
- L C Guimarães
- Faculdade de Medicina do Triângulo Mineiro, Hospital Hélio Angotti (Associação de Combate ao Câncer do Brasil Central), Universidade de Uberaba, MG
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Graham C, Ballard C, Saad K. Variables which distinguish patients fulfilling clinical criteria for dementia with Lewy bodies from those with Alzheimer's disease. Int J Geriatr Psychiatry 1997; 12:314-8. [PMID: 9152714] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To compare patients fulfilling clinical criteria for Lewy body dementia with those meeting clinical criteria for Alzheimer's disease. DESIGN Prospective cohort study. SETTING Psychiatric services and a memory clinic. SAMPLE 124 patients with DSM-III-R dementia. MEASURES The assessment included the GMS/HAS/SDS package, the CAMCOG, the Cornell Depression scale and the Burns Symptom Checklist. Dementia was diagnosed according to DSM-III-R, NINCDS ADRDA, McKeith, Byrne, Hachinski and HAS AGECAT criteria. RESULTS Patients meeting McKeith et al. criteria for senile dementia of Lewy body type were significantly more likely to have clouding of consciousness, significant Parkinsonian symptoms and less severely impaired recent memory than patients with NINCDS ADRDA Alzheimer's disease. Each of these variables also distinguished patients meeting Byrne et al.'s criteria for dementia with Lewy bodies from those with a diagnosis of Alzheimer's disease. CONCLUSIONS It is suggested that one set of criteria could encompass those overlapping groups of patients. Work is needed to further develop the diagnostic criteria for Lewy body dementia.
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Affiliation(s)
- C Graham
- Institute of Psychiatry, London, UK
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Abstract
One hundred and nine of 125 patients from consecutive referrals to a clinical service had an informal carer in contact at least once a week. Thirty-two of the carers had major or minor depression. The active management strategy 'being firm in directing behaviour' was significantly inversely associated with depression amongst carers living with the dementia sufferers, whilst carers who prioritized their daily routines were significantly more likely to be depressed. The active psychological coping strategy 'constructing a larger sense of the illness' was also significantly inversely associated with depression amongst carers living with the patients and 'reduction of expectations' showed a trend in the same direction. There were no significant differences between the coping strategies used by men and women. The type of coping strategy used by carers has an important relationship with depression. Active practical and psychological strategies were of benefit to carers and this has important treatment implications.
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Affiliation(s)
- K Saad
- West Midlands Rotational Training Scheme
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Abstract
OBJECTIVE To examine the associations of depression in the carers of dementia sufferers, diagnosed on the basis of a semistructured interview. DESIGN Case control study. SETTING Referrals to clinical services. SUBJECTS The informal carers of 109 dementia sufferers, 32 with depression and 77 without. MEASURES Carers were interviewed using the Geriatric Mental State Schedule. The diagnosis of depression was made according to Research Diagnostic Criteria. Instruments used to assess associations included Carers' Stress Scale, Marital Intimacy Scale, Cornell Depression Scale and CAMCOG Schedule. RESULTS Only increasing age was significantly associated with depression in the overall group of carers. The severity of cognitive impairment was significantly associated with depression in carers who lived with a dementia sufferer and a low level of premorbid marital intimacy was significantly associated with depression amongst carers who were marital partners. CONCLUSION Few factors are clearly associated with depression in the carers of dementia sufferers. The pattern of associations was, however, different for carers in different situations.
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Affiliation(s)
- C G Ballard
- University of Birmingham, Queen Elizabeth Psychiatric Hospital, UK
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Dewberry RG, Lipsey JR, Saad K, Moran TH, Robinson RG. Lateralized response to cortical injury in the rat: interhemispheric interaction. Behav Neurosci 1986. [PMID: 3741606 DOI: 10.1037//0735-7044.100.4.556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This study was conducted to investigate the role of interhemispheric interaction in the production of spontaneous hyperactivity following right but not left frontal cortical suction lesions in the rat. Bilateral lesions, either simultaneous or left followed 1 week later by right, led to spontaneous hyperactivity and bilateral depletions of cortical norepinephrine concentrations. Rats given corpus callosum sectioning as neonates and frontal cortical suction lesions as adults developed spontaneous hyperactivity only when the right hemisphere was injured. These data suggest that lateralized spontaneous hyperactivity as elicited by small suction lesions of the right hemisphere does not depend on interhemispheric release or interaction and that at least the cortical mechanism is in the right hemisphere itself.
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Abstract
This study was conducted to investigate the role of interhemispheric interaction in the production of spontaneous hyperactivity following right but not left frontal cortical suction lesions in the rat. Bilateral lesions, either simultaneous or left followed 1 week later by right, led to spontaneous hyperactivity and bilateral depletions of cortical norepinephrine concentrations. Rats given corpus callosum sectioning as neonates and frontal cortical suction lesions as adults developed spontaneous hyperactivity only when the right hemisphere was injured. These data suggest that lateralized spontaneous hyperactivity as elicited by small suction lesions of the right hemisphere does not depend on interhemispheric release or interaction and that at least the cortical mechanism is in the right hemisphere itself.
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Hafez M, Aref GH, Mehareb SW, Kassem AS, El-Tahhan H, Rizk Z, Mahfouz R, Saad K. Antibody production and complement system in protein energy malnutrition. J Trop Med Hyg 1977; 80:36-9. [PMID: 194050] [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: 12/13/2022]
Abstract
Antibody production in kwashiorkor and marasmic infants was studied by dividing them into three groups and giving the first group a single dose of trivalent live attenuated polio virus, the second group live attenuated measles virus and the third group diphtheriatoxoid. The production of antibodies was found to be deficient in PEM as compared to normals and diminished more in kwashiorkor than in marasmus cases. The individuals of the complement system were significantly lower in kwashiorkor than in normal controls. However, C3 was the only fraction which is significantly diminished in marasmic infants. The results are discussed and as a conclusion it is suggested that deficient production of antibodies and diminution in the complement system in PEM may explain the susceptibility of such infants to repeated attacks of infection.
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