1
|
Dautovich ND, Dzierzewski J, Sabet S, Soto P, Donovan E, Kleva C. 0313 Is Healthy Sleep Possible for Professional Firefighters? A Comparison of “On-Duty” and “Off-Duty” Sleep Quantity and Quality. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Healthy sleep is vital for firefighter safety, health, wellness, and for public well-being. However, professional firefighters experience disturbed sleep at disproportionately high rates. The current study investigated whether firefighters can obtain healthy sleep by identifying (1) differences in sleep while “on-duty” and “off-duty” and (2) risk factors for poor sleep.
Methods
Professional firefighters in Richmond, Virginia’s Department of Fire and Emergency Services (N=268), reported their sleep using the Pittsburgh Sleep Quality Index (PSQI) both on- and off-duty. Good and poor sleepers were identified using the PSQI global score cutoff of 5. Demographic and STOP-BANG questionnaires were also completed.
Results
Using a repeated measures MANOVA, on-duty sleep was significantly worse compared to off-duty sleep across PSQI component and global scores F(7, 253)=45.24 p<.001, η²=.56. On-duty, 76.1% of firefighters were classified as poor sleepers compared to 42.9% off-duty. 34.7% were reclassified as good sleepers or stayed good sleepers (22.4%) when off-duty. A sizeable minority experienced consistently poor sleep while on- and off-duty (41.4%), and a small number reported worse sleep when off-duty (1.5%). More night calls and poorer self-rated mental health predicted worse on-duty sleep (p<.001) and poorer self-rated mental health predicted worse off-duty sleep (p<.001).
Conclusion
Healthy sleep is possible for professional firefighters. Almost a quarter of the sample was classified as “good sleepers” on-duty and over half were classified as “good sleepers” off-duty. Nonetheless, sleep on-duty was significantly worse overall, with over a third of the sample experiencing consistently poor sleep. When working a 24-hour variable shift schedule, it appears that poor sleep may “carryover” from on-duty to off-duty. Poorer self-rated mental health and more night calls were identified as risk factors. Further research is needed to probe risk and protective factors within this population.
Support
N/A
Collapse
Affiliation(s)
| | | | - S Sabet
- Virginia Commonwealth University, Richmond, VA
| | - P Soto
- Virginia Commonwealth University, Richmond, VA
| | - E Donovan
- Virginia Commonwealth University, Richmond, VA
| | - C Kleva
- Virginia Commonwealth University, Richmond, VA
| |
Collapse
|
2
|
Hejr S, Karimi MH, Sabet S, Mohammadi B, Nikeghbalian S, Geramizadeh B, Yaghobi R. Polymorphism of the IL-18 and CD40 genes and Liver Transplant Outcome in Iranian Patients. Int J Organ Transplant Med 2014; 5:149-54. [PMID: 25426283 PMCID: PMC4243046] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND Cytokines and co-stimulatory molecules are important factors determining the outcome of transplantation. OBJECTIVE To investigate the effect of IL-18 and CD40 gene polymorphisms on the outcome of liver transplantation. METHODS 150 liver transplant recipients were included in this study. Alleles and genotypes frequencies for IL-18 (rs1946519) and CD40 (rs1883832) were determined in 28 acutely rejected (AR group) and 122 non-acutely rejected (non-AR group) liver transplant recipients. IL-18 and CD40 gene polymorphisms were evaluated by PCR-RFLP methods. RESULTS There were no significant associations between IL-18 and CD40 polymorphism with acute rejection in liver transplant patients. IL-18TT and TG genotypes had a significant association with rejection in women compared to men. After grouping the liver recipients according to living vs cadaver donors, a significant association was found between CC genotype of CD40 and rejection in male living donor recipients. IL-18 TG genotype had a significant association with rejection in female cadaver donor recipients. CONCLUSION There is no correlation between all genotype and alleles of IL-80 and CD40 polymorphism and the outcome of liver transplantation. However, gender and type of donor affect the correlation between all genotype and alleles of IL-18 and CD40, and the outcome of liver transplantation.
Collapse
Affiliation(s)
| | - M. H. Karimi
- Correspondence: Mohammad Hossein Karimi, Associate Professor of Immunology, Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran ,Fax: +98-71-3647-4331, E-mail:
| | | | | | | | | | | |
Collapse
|
3
|
Li L, Schülzgen A, Temyanko VL, Li H, Sabet S, Morrell MM, Mafi A, Moloney JV, Peyghambarian N. Investigation of modal properties of microstructured optical fibers with large depressed-index cores. Opt Lett 2005; 30:3275-7. [PMID: 16389803 DOI: 10.1364/ol.30.003275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We present what is, to the best of our knowledge, the first systematic study on how negative core-cladding index difference influences microstructured optical fiber's modal behavior. Single-mode lasing has been realized for short-length cladding-pumped phosphate glass microstructured fibers with large depressed-index Er(3+)-Yb(3+)-codoped cores.
Collapse
Affiliation(s)
- L Li
- College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Sabet S, Hakemi M, Nadjafi I, Ganji MR, Argani H, Broumand B. Impact of hepatitis C virus infection on short-term outcome in renal transplantation: a single-center study. Transplant Proc 2003; 35:2699-700. [PMID: 14612080 DOI: 10.1016/j.transproceed.2003.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- S Sabet
- Nephrology Research Center, Shariati Hospital, Tehran University of Medical Science, Tehran, Iran.
| | | | | | | | | | | |
Collapse
|
5
|
Silva JA, White CJ, Ramee SR, Collins TJ, Jenkins JS, Sabet S, Shamaileh Q, Vivekananthan K. Percutaneous profundaplasty in the treatment of lower extremity ischemia: results of long-term surveillance. J Endovasc Ther 2001; 8:75-82. [PMID: 11220474 DOI: 10.1177/152660280100800113] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/15/2022]
Abstract
PURPOSE To assess the procedural and long-term clinical outcomes of balloon angioplasty of the profunda femoris artery in patients with severe limb ischemia. METHODS Thirty-one consecutive patients were evaluated for severe ischemia in 32 limbs: 13 (41%) were categorized Fontaine class 2B, and 19 (59%) were class 3 or 4. The superficial femoral artery was occluded in 20 (62%) limbs; an additional vessel was treated in 22 (69%) limbs. RESULTS Procedural success was achieved in 91% (31/32) of limbs. The ankle-brachial index increased from 0.5 +/- 0.2 at baseline to 0.7 +/- 0.2 after intervention (p < 0.01). In-hospital limb salvage was 94% (30/32), and in-hospital event-free survival was 90% (28/31). At a mean follow-up of 34 +/- 20 months, no additional amputations were necessary; 3 patients required repeat revascularization, and 5 patients died. Freedom from revascularization was 88% in the 25 survivors. At follow-up, 88% of the patients had Fontaine class 1 or 2A symptoms, and only 12% had Fontaine class 2B or higher (p < 0.001 compared with baseline). CONCLUSIONS These data suggest that percutaneous profundaplasty is safe, effective, and may be considered as an alternative to surgical therapy in patients with anatomically suitable lesions.
Collapse
Affiliation(s)
- J A Silva
- Department of Cardiology, Ochsner Clinic, and the Alton Ochsner Medical Foundation, New Orleans, Louisiana 70121, USA
| | | | | | | | | | | | | | | |
Collapse
|
6
|
Ochoa MT, Stenger S, Sieling PA, Thoma-Uszynski S, Sabet S, Cho S, Krensky AM, Rollinghoff M, Nunes Sarno E, Burdick AE, Rea TH, Modlin RL. T-cell release of granulysin contributes to host defense in leprosy. Nat Med 2001; 7:174-9. [PMID: 11175847 DOI: 10.1038/84620] [Citation(s) in RCA: 140] [Impact Index Per Article: 6.1] [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: 01/11/2023]
Abstract
A novel mechanism by which T cells contribute to host defense against microbial pathogens is release of the antimicrobial protein granulysin. We investigated the role of granulysin in human infectious disease using leprosy as a model. Granulysin-expressing T cells were detected in cutaneous leprosy lesions at a six-fold greater frequency in patients with the localized tuberculoid as compared with the disseminated lepromatous form of the disease. In contrast, perforin, a cytolytic molecule that colocalizes with granulysin in cytotoxic granules, was expressed at similar levels across the spectrum of disease. Within leprosy lesions, granulysin colocalized in CD4+ T cells and was expressed in CD4+ T-cell lines derived from skin lesions. These CD4+ T-cell lines lysed targets by the granule exocytosis pathway and reduced the viability of mycobacteria in infected targets. Given the broad antimicrobial spectrum of granulysin, these data provide evidence that T-cell release of granulysin contributes to host defense in human infectious disease.
Collapse
Affiliation(s)
- M T Ochoa
- Division of Dermatology, University of California at Los Angeles School of Medicine, Los Angeles, California, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Ochoa MT, Thoma-Uszynski S, Sieling PA, Sabet S, Cho S, Krensky AM, Burdick A, Rea TH, Modlin RL. Role of granulysin in immunity to leprosy. LEPROSY REV 2000; 71 Suppl:S115; discussion S115-6. [PMID: 11201866 DOI: 10.5935/0305-7518.20000081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- M T Ochoa
- Division of Dermatology, University of California, Los Angeles School of Medicine, Los Angeles, California, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Sieling PA, Ochoa MT, Jullien D, Leslie DS, Sabet S, Rosat JP, Burdick AE, Rea TH, Brenner MB, Porcelli SA, Modlin RL. Evidence for human CD4+ T cells in the CD1-restricted repertoire: derivation of mycobacteria-reactive T cells from leprosy lesions. J Immunol 2000; 164:4790-6. [PMID: 10779786 DOI: 10.4049/jimmunol.164.9.4790] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Both the CD4-CD8- (double negative) and CD4-CD8+ T cell lineages have been shown to contain T cells which recognize microbial lipid and glycolipid Ags in the context of human CD1 molecules. To determine whether T cells expressing the CD4 coreceptor could recognize Ag in the context of CD1, we derived CD4+ T cell lines from the lesions of leprosy patients. We identified three CD4+ Mycobacterium leprae-reactive, CD1-restricted T cell lines: two CD1b restricted and one CD1c restricted. These T cell lines recognize mycobacterial Ags, one of which has not been previously described for CD1-restricted T cells. The response of CD4+ CD1-restricted T cells, unlike MHC class II-restricted T cells, was not inhibited by anti-CD4 mAb, suggesting that the CD4 coreceptor does not impact positive or negative selection of CD1-restricted T cells. The CD4+ CD1-restricted T cell lines produced IFN-gamma and GM-CSF, the Th1 pattern of cytokines required for cell-mediated immunity against intracellular pathogens, but no detectable IL-4. The existence of CD4+ CD1-restricted T cells that produce a Th1 cytokine pattern suggests a contributory role in immunity to mycobacterial infection.
Collapse
Affiliation(s)
- P A Sieling
- Division of Dermatology, University of California, Los Angeles, School of Medicine, Los Angeles, CA 90095, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Elias JM, Fromowitz F, Golightly M, Lane B, Sabet S. Leukemia derived from intermediately differentiated lymphocytic lymphoma. Pathol Res Pract 1988; 183:54-64. [PMID: 3283712 DOI: 10.1016/s0344-0338(88)80159-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The availability of monoclonal antibodies has facilitated the immunophenotypic characterization of malignant lymphocytes from patients with lymphoma and leukemia. The chronic lymphocytic leukemias are diseases of both clinical and morphological diversity and the application of monoclonal antibodies can prove helpful in their classification. Enzyme cytochemistry, surface markers, mouse rosetting, and electron microscopy were used to determine the phenotype of cells from an atypical case of B-CLL. The use of monoclonals Leu-1, CALLA and BA-2 on bone marrow and peripheral blood provided the opportunity to diagnose this patient's disease as intermediately differentiated lymphoma. Leu-1 was found to be a useful alternative to mouse rosetting, a technique not easily performed in a routine setting. Ultrastructural studies helped to prove the prolymphocytic component of this patient's disease. It was concluded that phenotypic characterization of lymphoid cells using monoclonal antibodies directed against membrane antigens facilitated the assessment of this patient's disease.
Collapse
MESH Headings
- Antigens, Surface/analysis
- B-Lymphocytes
- Cell Differentiation
- Cell Transformation, Neoplastic
- Histocytochemistry
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/complications
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphoid/enzymology
- Leukemia, Lymphoid/etiology
- Leukemia, Lymphoid/pathology
- Lymphoid Tissue/pathology
- Lymphoid Tissue/ultrastructure
- Male
- Middle Aged
- Phenotype
Collapse
Affiliation(s)
- J M Elias
- Department of Pathology, School of Medicine, State University of New York at Stony Brook
| | | | | | | | | |
Collapse
|
10
|
Mikhail EG, Sabet S, el-Boulaqi HA, Zaki IE, Gaber A. Treatment of hepatic coccidiosis in rabbits by tinidazole. J Egypt Soc Parasitol 1981; 11:389-97. [PMID: 7299175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
11
|
Mikhail EG, Sabet S, Mahran SG, Gaber AA, Soliman AA, Zaki IE, Tadros MB. Oxamniquine treatment in experimental schistosomiasis mansoni. Biological, morphological and pathological changes induced by divided doses. J Egypt Soc Parasitol 1981; 11:33-49. [PMID: 7299160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
12
|
Sabet S, Milad M. Teratogenic effects of hypervitaminosis A: an experimental study. J Egypt Public Health Assoc 1980; 55:97-103. [PMID: 7341729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
13
|
Abstract
In the west of Scotland the incidence of dialysis encephalopathy has been confined to three geographical areas where the concentration of aluminium in the water supply is greatly increased owing to the addition of aluminium sulphate. Eight patients with encephalopathy who dialysed at home in these areas had greatly increased serum aluminium concentrations, and a significant correlation was found between serum aluminium concentrations and the concentrations of aluminium in the water supply. This study provides further evidence that the dialysis encephalopathy syndrome is due to aluminium intoxication, the major source of aluminium being the water supply from which dialysis fluid prepared.
Collapse
|