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Kusma S, Maharjan A, Acharya M, Lee D, Kim S, Hwang C, Kim K, Kim H, Heo Y, Kim C. Oral subacute polypropylene microplastics administration effect on potential immunotoxicity in ICR mice. J Toxicol Environ Health A 2024; 87:371-380. [PMID: 38440899 DOI: 10.1080/15287394.2024.2324473] [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] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Exposure to microplastics may be associated with damage of immune system. Polypropylene microplastics (PP-MPs) with a wide range of beneficial applications have not been extensively studied with respect to the immune system. The aim of this investigation is to examine the influence of two different sizes of PP-MPs (5.2 and 23.9 μm diameter) on immune system components in ICR mice. PP-MPs were administered orally to female and male mice at 0 (corn oil vehicle), 500, 1000, or 2000 mg/kg/d for single and daily for 4-week repeated toxicity test, respectively. No significant differences were observed in number of thymic CD4+, CD8+, CD4+CD8+ T lymphocytes, splenic helper T cells, cytotoxic T cells, and B cells. The ratio of interferon-γ to interleukin-4 in culture supernatants from activated splenocytes ex vivo (48 hr) was lower in females which were repeatedly administered with PP-MPs compared to vehicle irrespective of PP-MPs size and dose. In contrast, the opposite trend was observed in males. Production of tumor necrosis factor-α was upregulated in females that were repeatedly exposed to PP-MPs. The serum IgG2a/IgG1 ratio was lowered in female receiving large-size PP-MPs. Data suggest that immune disturbances resulting in predominant type-2 helper T cell reactivity may occur in mice, especially in females, when repeatedly exposed to PP-MPs. Further investigations with longer exposure periods are necessary to determine the immunotoxicities attributed to PP-MPs.
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Affiliation(s)
- Sarina Kusma
- Department of Toxicology, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - Anju Maharjan
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - SoYeon Kim
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
| | - ChaeWon Hwang
- Department of Toxicology, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - KilSoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Heo
- Department of Toxicology, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
- Department of Health and Safety, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
| | - ChangYul Kim
- Department of Toxicology, Daegu Catholic University Graduate School, Gyeongsan, Republic of Korea
- Department of Toxicity Assessment, Daegu Catholic University Graduate School of Medical Health and Science, Gyeongsan, Republic of Korea
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Acharya M, Gautam R, Yang S, Jo J, Maharjan A, Lee D, Ghimire NP, Min B, Kim C, Kim H, Heo Y. Evaluation of Artemisia dubia folium extract-mediated immune efficacy through developing a murine model for acute and chronic stages of atopic dermatitis. Lab Anim Res 2024; 40:13. [PMID: 38582857 PMCID: PMC10999079 DOI: 10.1186/s42826-024-00201-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/26/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024] Open
Abstract
BACKGROUND Atopic dermatitis (AD) is a biphasic type of skin inflammation characterized by a predominance of type-2 (TH2) and type-1 (TH1) helper T cell-biased immune responses at the acute and persistent chronic phases, respectively. The present study was aimed to evaluate the efficacy of Artemisia dubia folium extract (ADFE) on AD-like skin lesions through developing a murine model for acute and chronic stages of AD. To induce acute phase AD, the dorsal skin of BALB/c mice was sensitized twice a week with 1% 2, 4-dinitrochlorobenzene (DNCB), followed by challenge (twice) in the following week with 0.2% DNCB. To induce persistent chronic AD, some mice were challenged twice a week for 4 more weeks. After the second challenge, the dorsal skin was exposed to 3% ADFE (five times per week) for 2 weeks (acute phase) or 4 weeks (persistent chronic phase). RESULTS The paradigm of TH2 or TH1 predominance at the acute and chronic phase, respectively, was observed in this mouse model. During the acute phase, we observed an increased IL-4/IFN-γ ratio in splenic culture supernatants, an increased IgG1/IgG2a ratio in serum, and elevated serum IgE levels; however, the skew toward TH2 responses was diminished during the chronic stage. Compared with vehicle controls, ADFE reduced the IL-4/IFN-γ and IgG1/IgG2a ratios in acute AD, but both ratios increased during the chronic stage. CONCLUSIONS Our results suggest that ADFE concomitantly suppresses the TH2 predominant response in acute AD, as well as the TH1 predominant response in chronic AD. Thus, ADFE is a candidate therapeutic for AD.
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Affiliation(s)
- Manju Acharya
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - Ravi Gautam
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - SuJeong Yang
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - JiHun Jo
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - Anju Maharjan
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - DaEun Lee
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | | | - ByeongSun Min
- College of Pharmacy, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - ChangYul Kim
- Department of Toxicology, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Yong Heo
- Department of Health and Safety, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea.
- Department of Toxicology, Graduate School, Daegu Catholic University, Gyeongsan-Si, Gyeongbuk Province, 38430, Republic of Korea.
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Jelsma J, Acharya M. Recurrent implant fractures in total hip arthroplasty: a yes-you-yan case report. Acta Orthop Belg 2024; 90:135-138. [PMID: 38669663 DOI: 10.52628/90.1.12399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
This case report describes a single patient with recurrent implant fractures of his left total hip replacement. According to our knowledge this is the first patient in literature with recurrent implant fractures. This is a rare phenomenon as reason for revision. Risk factors for implant failure of total hip replacement include a lack of proximal support, a distally well fixed stem with proximal debonding, malalignment of the stem and raised BMI.
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K C PB, Maharjan A, Acharya M, Lee D, Kusma S, Gautam R, Kwon JT, Kim C, Kim K, Kim H, Heo Y. Polytetrafluorethylene microplastic particles mediated oxidative stress, inflammation, and intracellular signaling pathway alteration in human derived cell lines. Sci Total Environ 2023; 897:165295. [PMID: 37419366 DOI: 10.1016/j.scitotenv.2023.165295] [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] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/09/2023]
Abstract
Microplastics (MPs) are now widely distributed across the aerial, terrestrial, and aquatic environments. Thus, exposure to MPs via the oral, inhalation, or dermal routes is inevitable. Polytetrafluoroethylene (PTFE)-MPs is mainly used for manufacturing nonstick cookware, semiconductors, and medical devices; however, their toxicity has been rarely studied. In the present study, six different human cell lines, which are representative of tissues and cells that directly or indirectly come into contact with MPs, were exposed to two different sizes of irregular shape PTFE-MPs (with an average diameter of 6.0 or 31.7 μm). PTFE-MPs-mediated cytotoxicity, oxidative stress, and changes in proinflammatory cytokine production were then evaluated. We found that the PTFE-MPs did not induce cytotoxicity under any of the experimental conditions. However, PTFE-MPs (especially average diameter of 6.0 μm) induced nitric oxide and reactive oxygen species production in all the cell lines tested. Moreover, both sizes of PTFE-MPs increased the secretion of tumor necrosis factor alpha and interleukin-6 from the U937 macrophage cell line and the A549 lung epithelial cell line, respectively. In addition, PTFE-MPs activated the MAPK signaling pathways, especially the ERK pathway, in A549 and U937 cells, and in the THP-1 dendritic cell line. We also found that the expression of the NLRP3 inflammasome was reduced in the U937 and THP-1 cell lines following treatment with the PTFE-MPs sized 31.7 μm average diameter. Furthermore, expression of the apoptosis regulator, BCL2, was markedly increased in the A549 and U937 cell lines. Thus, although PTFE-MPs exert different effects on different cell types, our findings suggest that PTFE-MPs-associated toxicity may be specifically linked to the activation of the ERK pathway, which ultimately induces oxidative stress and inflammation.
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Affiliation(s)
- Pramod Bahadur K C
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Sarina Kusma
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Jung-Taek Kwon
- Environmental Health Research Department, National Institute of Environmental Research, 22689 Incheon, Republic of Korea.
| | - ChangYul Kim
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea.
| | - KilSoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Center, 41061 Daegu, Republic of Korea; College of Veterinary Medicine, Kyungpook National University, 41566 Daegu, Republic of Korea.
| | - HyoungAh Kim
- College of Medicine, Department of Preventive Medicine, The Catholic University of Korea, 06591 Seoul, Republic of Korea.
| | - Yong Heo
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea; Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea.
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Maharjan A, Gautam R, Acharya M, Jo J, Lee D, K C PB, Lee YA, Kwon JT, Kim H, Kim K, Kim C, Kim H, Heo Y. Association of immunotoxicological indices with lung cancer biomarkers in poultry, grape, and rose farming workers. Toxicol Res 2023; 39:739-747. [PMID: 37779584 PMCID: PMC10541357 DOI: 10.1007/s43188-023-00199-9] [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: 03/23/2023] [Revised: 06/08/2023] [Accepted: 06/18/2023] [Indexed: 10/03/2023] Open
Abstract
Exposure to occupational hazards like dust, pesticides, diesel emission particles, or physical hazards in the agricultural sector is known to cause adverse health effects on farm workers. Our study aimed at addressing the association of immunomodulatory status with plasma levels of lung cancer biomarkers in farming population, attempting to recognition of vulnerable farming group. Blood samples from apparently healthy 51 chicken husbandry, 19 grape orchard, and 21 rose greenhouse workers were subjected to evaluate plasma levels of two representative lung cancer biomarkers, pro-gastrin releasing peptide (Pro-GRP) and cytokeratin fragment 19 (CYFRA 21-1). Peripheral blood mononuclear cells obtained from farmers were used for natural killer (NK) cell phenotyping and cytokines (interferon-gamma, IFN-γ and interleukin-13, IL-13) profiling in the culture supernatant. Compared to the rose greenhouse farmers, the grape orchard and chicken husbandry workers revealed a significantly upregulated plasma Pro-GRP and CYFRA 21-1 level. A low proportion of NK cells was observed among the female grape orchard workers and a lowered IFN- γ:IL-13 ratio was seen in the grape and chicken husbandry workers than the rose workers. Our findings imply that grape orchard and chicken husbandry workers have more disturbed immune homeostasis implicated with augmentation in the levels of lung cancer biomarkers than the rose greenhouse workers.
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Affiliation(s)
- Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
| | - DaEun Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
| | - Pramod Bahadur K C
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, 38430 Republic of Korea
| | - Young-A Lee
- Department of Food Science and Nutrition, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Jung-Taek Kwon
- Environmental Health Research Department, National Institute of Environmental Research, Incheon, 22689 Republic of Korea
| | - HyoCher Kim
- Rural Development Administration, National Institute of Agricultural Sciences, Jeonju, 54875 Republic of Korea
| | - KyungRan Kim
- Rural Development Administration, National Institute of Agricultural Sciences, Jeonju, 54875 Republic of Korea
| | - ChangYul Kim
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, 38430 Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591 Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 13-13, Hayang-Ro, Gyeongsan-Si, Gyeongsan, 38430 Republic of Korea
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, 38430 Republic of Korea
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Jo J, Acharya M, K C PB, Maharjan A, Lee D, Gautam R, Kwon JT, Kim K, Kim C, Heo Y, Kim H. Immunodysregulatory potentials of polyethylene or polytetrafluorethylene microplastics to mice subacutely exposed via intragastric intubation. Toxicol Res 2023; 39:419-427. [PMID: 37398562 PMCID: PMC10313636 DOI: 10.1007/s43188-023-00172-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 07/04/2023] Open
Abstract
Microplastics (MPs) have been recently recognized as posing a risk to human health. The adverse health effects of MP exposure have been recently reported, especially via the oral exposure route. The present study investigated whether subacute (4 week) exposure to polyethylene (PE) or polytetrafluorethylene (PTFE) MPs via gastric intubation caused immunotoxicity. Two different sizes of PE MPs (6.2 or 27.2 μm) and PTFE MPs (6.0 or 30.5 μm) were administered to 6-week-old mice of both sexes at 0 (corn oil vehicle control), 500, 1000, or 2000 mg/kg/day (n = 4/group). No significant differences were observed between groups in the major thymic or splenic immune cell populations, including thymic CD4+, CD8+, CD4+/CD8+ T lymphocytes, and splenic helper T cells, cytotoxic T cells, and B cells. The ratio of interferon-gamma (IFNγ) to interleukin-4 (IL-4) in culture supernatants from polyclonally activated splenic mononuclear cells ex vivo (48 h) was dose-dependently decreased in female mice that received small- and large-size PTFE MPs. The IFNγ/IL-4 ratio was also decreased in the female mice dosed with large-size PE MPs. The serum IgG2a/IgG1 ratio was dose-dependently increased in male and female animals dosed with small-size PE MPs, in female animals dosed with large-size PTFE MPs, and in male animals dosed with small-size PTFE MPs. The present study implies that immune functions could be affected in animals exposed to MPs via gastric intubation. These effects are dependent on MP size, MP dose, MP polymer type, and mouse sex. Further investigations with longer exposure periods could be necessary to more clearly define the immunotoxic effects of MPs. Supplementary Information The online version contains supplementary material available at 10.1007/s43188-023-00172-6.
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Affiliation(s)
- JiHun Jo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Pramod Bahadur K C
- Department of Toxicology, Graduate School of Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Jung-Taek Kwon
- Environmental Health Research Department, National Institute of Environmental Research, Incheon, Republic of Korea
| | - KilSoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - ChangYul Kim
- Department of Toxicology, Graduate School of Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
- Department of Toxicology, Graduate School of Daegu Catholic University, Gyeongsan, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
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Manjunath V, Thenral SG, Lakshmi BR, Nalini A, Bassi A, Karthikeyan KP, Piyusha K, Menon R, Malhotra A, Praveena LS, Anjanappa RM, Murugan SMS, Polavarapu K, Bardhan M, Preethish-Kumar V, Vengalil S, Nashi S, Sanga S, Acharya M, Raju R, Pai VR, Ramprasad VL, Gupta R. Large Region of Homozygous (ROH) Identified in Indian Patients with Autosomal Recessive Limb-Girdle Muscular Dystrophy with p.Thr182Pro Variant in SGCB Gene. Hum Mutat 2023. [DOI: 10.1155/2023/4362273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
The sarcoglycanopathies are autosomal recessive limb-girdle muscular dystrophies (LGMDs) caused by the mutations in genes encoding the α, β, γ, and δ proteins which stabilizes the sarcolemma of muscle cells. The clinical phenotype is characterized by progressive proximal muscle weakness with childhood onset. Muscle biopsy findings are diagnostic in confirming dystrophic changes and deficiency of one or more sarcoglycan proteins. In this study, we summarized 1,046 LGMD patients for which a precise diagnosis was identified using targeted sequencing. The most frequent phenotypes identified in the patients are LGMDR1 (19.7%), LGMDR4 (19.0%), LGMDR2 (17.5%), and MMD1 (14.5%). Among the reported genes, each of CAPN3, SGCB, and DYSF variants was reported in more than 10% of our study cohort. The most common variant SGCB p.Thr182Pro was identified in 146 (12.5%) of the LGMD patients, and in 97.9% of these patients, the variant was found to be homozygous. To understand the genetic structure of the patients carrying SGCB p.Thr182Pro, we genotyped 68 LGMD patients using a whole genome microarray. Analysis of the array data identified a large ~1 Mb region of homozygosity (ROH) (chr4:51817441-528499552) suggestive of a shared genomic region overlapping the recurrent missense variant and shared across all 68 patients. Haplotype analysis identified 133 marker haplotypes that were present in ~85.3% of the probands as a double allele and absent in all random controls. We also identified 5 markers (rs1910739, rs6852236, rs13122418, rs13353646, and rs6554360) which were present in a significantly higher proportion in the patients compared to random control set (
) and the population database. Of note, admixture analysis was suggestive of greater proportion of West Eurasian/European ancestry as compared to random controls. Haplotype analysis and frequency in the population database indicate a probable event of founder effect. Further systematic study is needed to identify the communities and regions where the SGCB p.Thr182Pro variant is observed in higher proportions. After identifying these communities and//or region, a screening program is needed to identify carriers and provide them counselling.
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Gautam R, Jo J, Acharya M, Maharjan A, Lee D, K C PB, Kim C, Kim K, Kim H, Heo Y. Evaluation of potential toxicity of polyethylene microplastics on human derived cell lines. Sci Total Environ 2022; 838:156089. [PMID: 35605862 DOI: 10.1016/j.scitotenv.2022.156089] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 05/14/2023]
Abstract
Microplastics bare of major concern for environmental conservation and animal welfare in recent years as its use has increased tremendously. Polyethylene microplastics (PE-MPs) are the most common microplastics and could get exposed to humans via different routes with oral>inhalation>dermal. Internalization of MPs through epithelial tissue could expose MPs to various cells such as dendritic cells, macrophages/monocytes, and/or T cells. In this study, we aimed at identifying the effects of two different sized (30.5 ± 10.5 and 6.2 ± 2.0 μm) PE-MPs on different human cell lines representing different tissues or cells that get exposed to MPs directly or indirectly. Six cell lines were cultured with different concentrations of PE-MPs and cell viability, intracellular reactive oxygen species (ROS), nitric oxide (NO), and cytokines were measured. PE-MPs did not substantially lower the cell viability of cells however highest concentration (1000 μg/mL) of both sized MPs slightly reduced cell viability in intestinal epithelial Caco-2 and lung epithelial A549 cells. Both sized PE-MPs induced higher NO in all the cell lines and upregulation of ROS generation was demonstrated at THP-1, Jurkat, and U937 immune cell lines. A pro-inflammatory cytokine response was seen in HaCaT keratinocyte cells when cultured with PE-MPs whereas the opposite effect was observed in THP-1 and U937 cells except with THP-1 cells cultured with larger-sized MPs. We found that the PE-MPs do not have the same effects on all kinds of cells and tissues exposed and the immune modulation is not necessarily inflammatory. Thus, this study gives insight into why more detailed studies focused on exposure routes and organ-specific effects of different MPs need to be carried out.
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Affiliation(s)
- Ravi Gautam
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea.
| | - JiHun Jo
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Manju Acharya
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Anju Maharjan
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - DaEun Lee
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Pramod Bahadur K C
- Graduate School Department of Toxicology, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - ChangYul Kim
- Graduate School Department of Toxicology, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea.
| | - KilSoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Center, 41061 Daegu, Republic of Korea; College of Veterinary Medicine, Kyungpook National University, 41566 Daegu, Republic of Korea.
| | - HyoungAh Kim
- College of Medicine, Department of Preventive Medicine, The Catholic University of Korea, 06591 Seoul, Republic of Korea.
| | - Yong Heo
- Department of occupational health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan 38430, Republic of Korea; Graduate School Department of Toxicology, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea.
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KC P, Acharya M, Maharjan A, Lee D, Kusma S, Adhikari M, Kim S, Kim S, Kim D, Kim D, Choi Y, Kim C, Kim H, Heo Y. P10-05 No apparent cellular immunotoxicity in mice subchronically exposed to polyethylene or polytetrafluorethylene microplastics through gastric intubation. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.436] [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: 11/12/2022]
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Acharya M, Lee D, Maharjan A, Yang S, Seo S, Kang H, Sin J, Lee G, Yu Y, Park J, Lee G, Kim C, Kim H, Heo Y. P10-04 Development of alternative test method for immunotoxicity prediction on chemical substances through profiling of cytokines production from THP-1 cell line. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.435] [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: 11/28/2022]
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Maharjan A, Acharya M, Lee D, C PK, Kusma S, Adhikari M, Lee J, Kim J, Kim M, Park K, Park H, Hwang S, Kim C, Kim H, Heo Y. P13-06 Comparison of overall immunity levels among workers at grape or pear orchards, rose greenhouse, and open-field onion farms. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.545] [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: 11/24/2022]
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12
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Varma J, Foxall-Smith M, Donovan R, Whitehouse M, Rogers C, Acharya M. 850 Surgical Versus Non-Surgical Treatment of Unstable Lateral Compression Injuries of the Pelvis with Complete Sacral Fractures (LC1) in Non-Fragility Fracture Patients: A Systematic Review. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Background
Lateral compression type 1 (LC1) injuries comprise two-thirds of pelvic fractures. Approximately one third of LC1 fractures are unstable and may benefit from surgical fixation to improve stability but it is not clear if this leads to better clinical or cost-effectiveness outcomes.
Method
We performed a systematic review to determine whether surgical or non-surgical treatment yielded better clinical and cost-effectiveness for the treatment of unstable LC1 pelvic injuries with complete sacral fracture, excluding fragility fractures. We searched Medline, Embase and Cochrane databases from inception to June 2021, as well as clinical trials registries.
Results
Five observational studies met the inclusion criteria. 183 patients were treated surgically, and 314 patients treated non-surgically. Patients treated surgically had lower pain levels (Visual Analogue Scale) and fewer days to mobilisation. Quality of life (EQ-5D and SF-36 questionnaires) was better in the surgical group, but not statistically significant. No statistical differences in length of hospital stay or complication rates were found. Formal meta-analysis was not possible due to available study designs and heterogeneity.
Conclusions
This review highlights the low quantity and quality of existing data on patients with unstable LC1 pelvic fractures and the need for a definitive randomised controlled trial to determine whether surgical or non-surgical care should be the preferred treatment in terms of clinical and cost-effective care.
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Affiliation(s)
- J Varma
- North Bristol NHS Trust , Bristol , United Kingdom
| | | | - R Donovan
- Musculoskeletal Research Unit, Translational Health Sciences, University of Bristol, Learning & Research Building (Level 1) , Bristol , United Kingdom
| | - M Whitehouse
- Musculoskeletal Research Unit, Translational Health Sciences, University of Bristol, Learning & Research Building (Level 1) , Bristol , United Kingdom
| | - C Rogers
- Musculoskeletal Research Unit, Translational Health Sciences, University of Bristol, Learning & Research Building (Level 1) , Bristol , United Kingdom
| | - M Acharya
- North Bristol NHS Trust , Bristol , United Kingdom
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13
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Jiang Y, Parsonnet E, Qualls A, Zhao W, Susarla S, Pesquera D, Dasgupta A, Acharya M, Zhang H, Gosavi T, Lin CC, Nikonov DE, Li H, Young IA, Ramesh R, Martin LW. Enabling ultra-low-voltage switching in BaTiO 3. Nat Mater 2022; 21:779-785. [PMID: 35618823 DOI: 10.1038/s41563-022-01266-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Single crystals of BaTiO3 exhibit small switching fields and energies, but thin-film performance is considerably worse, thus precluding their use in next-generation devices. Here, we demonstrate high-quality BaTiO3 thin films with nearly bulk-like properties. Thickness scaling provides access to the coercive voltages (<100 mV) and fields (<10 kV cm-1) required for future applications and results in a switching energy of <2 J cm-3 (corresponding to <2 aJ per bit in a 10 × 10 × 10 nm3 device). While reduction in film thickness reduces coercive voltage, it does so at the expense of remanent polarization. Depolarization fields impact polar state stability in thicker films but fortunately suppress the coercive field, thus driving a deviation from Janovec-Kay-Dunn scaling and enabling a constant coercive field for films <150 nm in thickness. Switching studies reveal fast speeds (switching times of ~2 ns for 25-nm-thick films with 5-µm-diameter capacitors) and a pathway to subnanosecond switching. Finally, integration of BaTiO3 thin films onto silicon substrates is shown. We also discuss what remains to be demonstrated to enable the use of these materials for next-generation devices.
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Affiliation(s)
- Y Jiang
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - E Parsonnet
- Department of Physics, University of California, Berkeley, CA, USA
| | - A Qualls
- Department of Physics, University of California, Berkeley, CA, USA
| | - W Zhao
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - S Susarla
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - D Pesquera
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Catalan Institute of Nanoscience and Nanotechnology, CSIC and BIST, Barcelona, Spain
| | - A Dasgupta
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - M Acharya
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - H Zhang
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - T Gosavi
- Components Research, Intel Corporation, Hillsboro, OR, USA
| | - C-C Lin
- Components Research, Intel Corporation, Hillsboro, OR, USA
| | - D E Nikonov
- Components Research, Intel Corporation, Hillsboro, OR, USA
| | - H Li
- Components Research, Intel Corporation, Hillsboro, OR, USA
| | - I A Young
- Components Research, Intel Corporation, Hillsboro, OR, USA
| | - R Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Physics, University of California, Berkeley, CA, USA
| | - L W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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14
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Khalil M, Acharya M, Kamel M, Davis R, Machado B, Raheem O. Perioperative Morbidity of Penile Prosthesis Placement with Concurrent Surgery: Analysis of the National Surgical Quality Improvement Program Database. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Shin K, Lim G, Hong YS, Kim S, Hwang S, Lee J, Sin S, Cho A, Kim Y, Gautam R, Jo J, Acharya M, Maharjan A, Lee D, K C PB, Kim C, Heo Y, Kim HA. Exposure to lead on expression levels of brain immunoglobulins, inflammatory cytokines, and brain-derived neurotropic factor in fetal and postnatal mice with autism-like characteristics. J Toxicol Environ Health A 2021; 84:891-900. [PMID: 34187350 DOI: 10.1080/15287394.2021.1945985] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Autism spectrum disorders (ASD) are neurodevelopmental disorders, and their incidence is increasing worldwide. Increased exposure to environmental metal lead (Pb) has been proposed as a risk factor associated with ASD. In the present study, BTBR T+ tf/J (BTBR) mice with ASD-like behavioral characteristics and control FVB mice were exposed gestationally and/or neonatally to Pb, and compared with highly social FVB mice to investigate neuroimmunological abnormalities. IgG1 and IgG2a levels in fetal brains from BTBR dams exposed to Pb (BTBR-Pb) were significantly higher than those of BTBR-controls (BTBR-C). However, this change did not occur in FVB mice exposed to Pb. The IgG1:IgG2a ratio was higher in both fetal and postnatal brains of BTBR mice compared to FVB animals regardless of Pb exposure. The IL-4:IFN-γ ratio was elevated in BTBR-Pb relative to BTBR-C mice, but this ratio was not markedly affected following Pb exposure in FVB animals. These findings suggest the potential for a Pb-driven predominant TH2-like reactivity profile in brain microenvironment present in BTBR mice. Brain-derived neurotrophic factor was decreased in fetal and postnatal BTBR-Pb brains relative to BTBR-C brains but not in FVB-Pb relative to FVB-C mice. Taken together, data demonstrate that Pb exposure might contribute to developmental brain abnormalities associated with ASD, particularly in individuals with genetic susceptibility to ASD.
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Affiliation(s)
- KyeongMin Shin
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - GyeongDong Lim
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Young-Seoub Hong
- Department of Preventive Medicine, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - SoNam Kim
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - SoRyeon Hwang
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - JaeHee Lee
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - SoJung Sin
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - AhRang Cho
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - YeonGyeong Kim
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Ravi Gautam
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - JiHun Jo
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Anju Maharjan
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Pramod B K C
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - ChangYul Kim
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Yong Heo
- Department Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, Republic of Korea
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan, Republic of Korea
| | - Hyoung-Ah Kim
- Department of Preventive Medicine, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
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16
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Van Der Heijden M, Cutie C, Hampras S, Indoria C, Stewart R, Acharya M, Stromberg K, Li X, Beeharry N, Maffeo J, Jacob J, Tsiatas M. SunRISe-1: phase 2b study of TAR-200 plus cetrelimab, TAR-200 alone, or cetrelimab alone in participants with high-risk non-muscle-invasive bladder cancer unresponsive to bacillus Calmette–Guérin who are ineligible for or decline radical cystectomy. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03209-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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17
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Williams S, Cutie C, Keegan K, Raybold B, Stewart R, Acharya M, Zhu W, Li X, O’Dondi L, Beeharry N, Spratt D, Tsiatas M. SunRISe-2: a phase 3, multicenter, randomized study evaluating the efficacy of TAR-200 in combination with cetrelimab versus concurrent chemoradiotherapy in participants with muscle-invasive urothelial carcinoma of the bladder. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03201-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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18
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Pandey A, Seam R, Pandey L, Malik D, Mahajan R, Srinivasavittal Rao Sumithra B, Inampudi P, Acharya M, Chaparala S, Patel F. 879P Adaptive radiotherapy in head and neck cancer: A prospective dosimetric and volumetric study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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19
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Gautam R, Yang S, Maharjan A, Jo J, Acharya M, Heo Y, Kim C. Prediction of Skin Sensitization Potential of Silver and Zinc Oxide Nanoparticles Through the Human Cell Line Activation Test. Front Toxicol 2021; 3:649666. [PMID: 35295130 PMCID: PMC8915822 DOI: 10.3389/ftox.2021.649666] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/26/2021] [Indexed: 11/23/2022] Open
Abstract
The development of nanotechnology has propagated the use of nanoparticles (NPs) in various fields including industry, agriculture, engineering, cosmetics, or medicine. The use of nanoparticles in cosmetics and dermal-based products is increasing owing to their higher surface area and unique physiochemical properties. Silver (Ag) NPs' excellent broad-spectrum antibacterial property and zinc oxide (ZnO) NPs' ability to confer better ultraviolet (UV) protection has led to their maximal use in cosmetics and dermal products. While the consideration for use of nanoparticles is increasing, concerns have been raised regarding their potential negative impacts. Although used in various dermal products, Ag and ZnO NPs' skin sensitization (SS) potential has not been well-investigated using in vitro alternative test methods. The human Cell Line Activation Test (h-CLAT) that evaluates the ability of chemicals to upregulate the expression of CD86 and CD54 in THP-1 cell line was used to assess the skin sensitizing potential of these NPs. The h-CLAT assay was conducted following OECD TG 442E. NPs inducing relative fluorescence intensity of CD86 ≥ 150% and/or CD54 ≥ 200% in at least two out of three independent runs were predicted to be positive. Thus, Ag (20, 50, and 80 nm) NPs and ZnO NPs were all predicted to be positive in terms of SS possibility using the h-CLAT prediction model. Although further confirmatory tests addressing other key events (KEs) of SS adverse outcome pathway (AOP) should be carried out, this study gave an insight into the need for cautious use of Ag and ZnO NPs based skincare or dermal products owing to their probable skin sensitizing potency.
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Affiliation(s)
- Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
| | - SuJeong Yang
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongsan, South Korea
- Department of Toxicity Assessment, The Graduate School of Medical and Health Industry, Daegu Catholic University, Gyeongsan, South Korea
| | - ChangYul Kim
- Department of Toxicity Assessment, The Graduate School of Medical and Health Industry, Daegu Catholic University, Gyeongsan, South Korea
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20
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Saul D, Hünicke P, Böker KO, Spering C, Maheshwari AK, Acharya M, Lehmann W. Predicting the disaster - The role of CRP in acetabular surgery. Clin Biochem 2021; 94:48-55. [PMID: 33895126 DOI: 10.1016/j.clinbiochem.2021.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Acetabular fractures represent a complex surgical challenge. Given the heterogenous fracture pattern, the patient characteristics and spectrum of complications demand individual solutions. Surgical site infections (SSI) threaten osteosynthesis, and early detection of them and treatment remain crucial. What is the value of postoperative C-reactive protein (CRP) in this group of patients as well as its normal course? DESIGN & METHODS 115 patients with isolated fractures of the acetabulum were retrospectively evaluated. CRP, white blood cell count (WBC) and fracture patterns as well as patient characteristics were assessed for 20 days following operative fixation of the acetabular fracture (n = 71) and in fractures that were managed conservatively (n = 44). RESULTS Twelve patients suffered an infectious complication. With a one-phase decay, 70.55% of the variance of postoperative CRP kinetics was predicted. To anticipate maximum CRP as well as an infection, the preoperative CRP represented the best prognostic parameter. To predict an infection, the single variable "peak CRP value above 100 mg/l" resulted in a sensitivity and specificity of 91.67% and 36.21%, respectively. Combining a second peak of CRP with maximum CRP and day 5 CRP value for receiver-operating characteristic (ROC) analysis resulted in 83.3% and 88.1%, respectively. CONCLUSIONS Predicting surgical site infections after an acetabular fracture is most predictive when analyzing the maximum overall CRP, the second peak and the CRP after day 5. With a combination of these parameters, a sensitivity and specificity of 83.3% and 88.1% to detect an infection was achieved.
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Affiliation(s)
- D Saul
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, Germany; Kogod Center on Aging and Division of Endocrinology, Mayo Clinic, Rochester, MN 55905, USA.
| | - P Hünicke
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, Germany
| | - K O Böker
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, Germany
| | - C Spering
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, Germany
| | - A K Maheshwari
- Kogod Center on Aging and Division of Endocrinology, Mayo Clinic, Rochester, MN 55905, USA
| | - M Acharya
- Trauma & Orthopaedics, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | - W Lehmann
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Goettingen, Germany
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21
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Kim H, Song E, Lee J, Gautam R, Shin S, Cho A, Kim Y, Yang S, Jo J, Acharya M, Maharjan A, Kim C, Heo Y, Kim H. Dysregulation of murine immune functions on inhalational exposure to ammonia, dimethyl disulfide, 3-methylindole, or propionic acid. Toxicol Ind Health 2021; 37:219-228. [PMID: 33663293 DOI: 10.1177/0748233721996559] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Animal husbandry workers are exposed to various malodorous compounds in the workplace. Although these compounds cause severe nuisance, no systemic investigation of their effects on the immune system has been conducted. To address this issue, we evaluated the effects of inhalational exposure to ammonia, dimethyl disulfide, 3-methylindole (3-MI), and propionic acid (PA), representing four major groups of malodorous compounds, on humoral and cellular immunity in mice. Mice were exposed to the substances (low dose: 10 µL and high dose: 200 µL) for 10 min/day for 4 weeks in a modified standard mouse cage. Neutrophil% and splenic cytotoxic T cell% were significantly lower in the high-dose ammonia group than in the vehicle control. Exposure to ammonia and 3-MI increased immature thymic T lymphocyte% relative to control and concomitantly decreased both mature helper and cytotoxic T-cell populations in the thymus. In the ammonia exposure group, levels of serum immunoglobulin E and immunoglobulin A were elevated, and the IgG2a:IgG1 ratio in the serum was reduced in a dose-dependent manner. Splenic natural killer cell activity was significantly less in the PA exposure group than in the control. Overall, our findings suggest that inhalational exposure to these malodorous substances disturbs immune homeostasis in vivo.
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Affiliation(s)
- HyeonJi Kim
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - EunSeob Song
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JaeHee Lee
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SoJung Shin
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - AhRang Cho
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - YeonGyeong Kim
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SuJeong Yang
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - ChangYul Kim
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio-Medical Sciences, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea.,Department of Toxicity Assessment, Graduate School of Medical Health and Science, 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, 37128College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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22
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Benson C, Khalil M, Acharya M, Payakachat N, Eltahawy E, Davis R, Raheem O. 138 Perioperative Morbidity of Gender Affirming Surgery: Analysis of the National Surgical Quality Improvement Program (NSQIP) Database. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.157] [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: 11/27/2022]
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23
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Yang S, Heo Y, Gautam R, Lee J, Maharjan A, Jo J, Acharya M, Kim C, Kim H. Prediction of the skin sensitization potential of polyhexamethylene guanidine and triclosan and mixtures of these compounds with the excipient propylene glycol through the human Cell Line Activation Test. Toxicol Ind Health 2020; 37:1-8. [PMID: 33295265 DOI: 10.1177/0748233720974131] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Household products often contain an antimicrobial agent such as biocides, polyhexamethylene guanidine (PHMG), triclosan (TCS), and propylene glycol (PG) as an excipient to dissolve the active ingredients. The skin sensitization (SS) potentials of each of these substances or mixtures of PHMG or TCS with PG have not been investigated through in vitro alternative test methods. The in vitro alternative assay called human Cell Line Activation Test (h-CLAT) served to address these issues. The h-CLAT assay was conducted in accordance with OECD TG 442E. On three independent runs, all the three substances were predicted to be sensitizers according to the SS positivity with relative fluorescence intensity of CD86 ≥ 150% and/or CD54 ≥ 200% at any tested concentrations. Mixtures of PHMG or TCS with PG at ratios of 9:1, 4:1, or 1:4 weight/volume were all positive in terms of SS potential. Since humans can be occupationally or environmentally exposed to mixtures of excipients with active ingredients of biocides, the present study may give insights into further investigations of the SS potentials of various chemical mixtures.
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Affiliation(s)
- SuJeong Yang
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea.,Department of Toxicology, Graduate School of 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JaeHee Lee
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - ChangYul Kim
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea.,Department of Toxicology, Graduate School of 37981Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The 37128Catholic University of Korea, Seoul, Republic of Korea
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24
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Ioannides P, Limoli C, Benoit P, Warn M, Kramar E, Wood M, Leavitt R, Ollivier J, Smith S, Allen B, Acharya M, Baulch J, Vozenin M. Stem Cell-Derived Extracellular Vesicles For The Treatment Of Radiation-Induced Normal Tissue Toxicity In The Brain And Lung. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Pease F, Ward AJ, Stevenson AJ, Cunningham JL, Sabri O, Acharya M, Chesser T. Posterior wall acetabular fracture fixation: A mechanical analysis of fixation methods. J Orthop Surg (Hong Kong) 2020; 27:2309499019859838. [PMID: 31311424 DOI: 10.1177/2309499019859838] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Stable, anatomical fixation of acetabular fractures gives the best chance of successful outcome, while penetration of the acetabular articular surface with screws is associated with poor outcomes. Spring plates are an alternative to interfragmentary lag screws when penetration is a concern. A mechanical study comparing fracture stability and construct stiffness of three fixation methods for posterior wall acetabular fractures with transverse comminutions was performed. The three fixation methods tested were a posterior wall rim plate, a posterior wall buttress plate with separate lag screws and a posterior wall plate with two spring plates. Nine samples were tested, three for each fixation method. Two-dimensional motion analysis was used to measure fracture fragment displacement and construct stiffness. After two 6000 cycle-loading protocols, to a maximum 1.5 kN, the mean fracture displacement was 0.154 mm for the rim plate model, 0.326 mm for the buttress plate and 0.254 mm for the spring plate model. Mean maximum displacement was significantly less for the rim plate fixation than the buttress plate (p = 0.015) and spring plate fixation (p = 0.02). The rim plate was the stiffest construct 10,962 N/mm, followed by the spring plate model 5637 N/mm and the buttress plate model 4882 N/mm. Based on data obtained in this study, where possible a rim plate with interfragmentary lag screws should be used for isolated posterior wall fractures as this is the stiffest and most stable construct. When this method is not possible, spring plate fixation is a safe and a superior alternative to a posterior buttress plate method.
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Affiliation(s)
- F Pease
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - A J Ward
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - A J Stevenson
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - J L Cunningham
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - O Sabri
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - M Acharya
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - Tjs Chesser
- Pelvic and Acetabular Reconstruction Unit, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
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Joo SJ, Gautam R, Lee J, Kim H, Yang S, Jo J, Acharya M, Maharjan A, Kim Y, Lim YM, Kim C, Kim H, Heo Y. Prediction of the skin sensitization potential of polyhexamethylene guanidine phosphate, oligo(2-(2-ethoxy)ethoxyethyl) guanidinium chloride, triclosan, and mixtures of these compounds with the excipient propylene glycol through the local lymph node assay: BrdU-FCM. Toxicol Ind Health 2019; 35:638-646. [DOI: 10.1177/0748233719884853] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The guanidine family of antimicrobial agents, which includes polyhexamethylene guanidine phosphate (PHMG) and oligo(2-(2-ethoxy)ethoxyethyl) guanidinium chloride (PGH), and chlorophenol biocidal chemicals such as 2,4,4′-trichloro-2′-hydroxydiphenyl ether (triclosan) are used in various occupational and environmental biocidal applications. The excipient propylene glycol (PG) is used to dissolve the active ingredients. The skin sensitization (SS) potential of these substances has not been systemically investigated and is still debated. Moreover, mixtures of PHMG, PGH, or triclosan with PG have not been evaluated for SS potency. An in vivo assay known as the local lymph node assay: 5-bromo-2-deoxyuridine-flow cytometry method (LLNA: BrdU-FCM) was recently adopted as an alternative testing method and was used to address these issues. Via the LLNA: BrdU-FCM, PHMG, PGH, and triclosan were predicted to be sensitizers, while PG was predicted to be a nonsensitizer. In addition, d-limonene, which is used as a flavoring in various consumer products, was also predicted to be a sensitizer, although no unanimous conclusion has been reached regarding its SS potential. Mixtures of PHMG, PGH, triclosan, or d-limonene with PG at ratios of 9:1, 4:1, and 1:4 (w/w) were all positive in terms of SS potential, indicating that the PG excipient does not influence the SS predictions of these chemicals. Since humans can be occupationally and environmentally exposed to mixtures of excipients with active ingredients, the present study may give insight into further investigations of the SS potentials of various chemical mixtures.
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Affiliation(s)
- Su-Jeong Joo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JaeHee Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyeonJi Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SuJeong Yang
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JiHun Jo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - YeonGyeong Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Yeon-Mi Lim
- Risk Assessment Division, Environmental Health Research Department, Institute of Environmental Research, Incheon, Republic of Korea
| | - ChangYul Kim
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
- DragonImmuno Inc., Gyeongsan-si, Gyeongbuk, Republic of Korea
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Lee J, Cho A, Gautam R, Kim Y, Shin S, Song E, Kim H, Yang S, Acharya M, Jo J, Maharjan A, Shim I, Kim HM, Kim P, Kim T, Lee J, Kang M, Jeong T, Kim C, Kim H, Heo Y. Prediction of the skin sensitization potential of didecyldimethylammonium chloride and 3,7-dimethyl-2,6-octadienal and mixtures of these compounds with the excipient ethylene glycol through the human Cell Line Activation Test and the Direct Peptide Reactivity Assay. Toxicol Ind Health 2019; 35:507-519. [DOI: 10.1177/0748233719869514] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In commercial products such as household deodorants or biocides, didecyldimethylammonium chloride (DDAC) often serves as an antimicrobial agent, citral serves as a fragrance agent, and the excipient ethylene glycol (EG) is used to dissolve the active ingredients. The skin sensitization (SS) potentials of each of these substances are still being debated. Moreover, mixtures of DDAC or citral with EG have not been evaluated for SS potency. The in vitro alternative assay called human Cell Line Activation Test (h-CLAT) and Direct Peptide Reactivity Assay (DPRA) served to address these issues. On three independent runs of h-CLAT, DDAC and citral were predicted to be sensitizers while EG was predicted to be a non-sensitizer and also by the DPRA. Mixtures of DDAC or citral with EG at ratios of 7:3 and 1:4 w/v were all positive by the h-CLAT in terms of SS potential but SS potency was mitigated as the proportion of EG increased. Citral and its EG mixtures were all positive but DDAC and its EG mixtures were all negative by the DPRA, indicating that the DPRA method is not suitable for chemicals with pro-hapten characteristics. Since humans can be occupationally or environmentally exposed to mixtures of excipients with active ingredients, the present study may give insights into further investigations of the SS potentials of various chemical mixtures.
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Affiliation(s)
- JaeHee Lee
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - AhRang Cho
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - YeonGyeong Kim
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SoJung Shin
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - EunSeob Song
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyeonJi Kim
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - SuJeong Yang
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - JiHoon Jo
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - IlSeob Shim
- Risk Assessment Division, National Institute of Environmental Research, Incheon, Republic of Korea
| | - Hyun-Mi Kim
- Risk Assessment Division, National Institute of Environmental Research, Incheon, Republic of Korea
| | - PilJe Kim
- Risk Assessment Division, National Institute of Environmental Research, Incheon, Republic of Korea
| | - TaeSung Kim
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, MFDS, Chungbuk, Republic of Korea
| | - JongKwon Lee
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, MFDS, Chungbuk, Republic of Korea
| | - MiJeong Kang
- College of Pharmacy, Yeungnam University, Gyeongbuk, Republic of Korea
| | - TaeCheon Jeong
- College of Pharmacy, Yeungnam University, Gyeongbuk, Republic of Korea
| | - ChangYul Kim
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
| | - HyoungAh Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Heo
- Department of Occupational Health, College of Bio-Medical Sciences, Daegu Catholic University, Gyeongbuk, Republic of Korea
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Hossain MA, Vaidya S, Acharya M, Joshi D, Sunny SA, Khan OS. Atypical Location of an Atrial Myxoma: A Case Report. Mymensingh Med J 2019; 28:705-707. [PMID: 31391449] [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: 06/10/2023]
Abstract
Here, we report a case of a right atrial myxoma attached to the lateral wall, which is seen in only 10% cases, impinging upon the tricuspid valve. A 57 year old male normotensive, non-diabetic, nonsmoker patient was presented to us on 5th of August 2018 with the complaints of cough, dyspnea and orthopnea for the last two years. This type of presentation is very rare. After excision of myxoma, there was a significant improvement in the signs and symptoms of the patient. In this report, we emphasize the rarity of myxoma in the Right Atrium, and its difficulty in diagnosis because of its uncommon location and atypical presentation, surgical management has shown to quickly alleviate the majority of symptom and expectant sequeale.
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Affiliation(s)
- M A Hossain
- Dr Md Aslam Hossain, Associate Professor, Department of Cardio Vascular and Thoracic Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Limoli C, Vozenin M, Acharya M. OC-0056 Multiple strategies for resolving radiation- induced neurocognitive dysfunction. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30476-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shin SJ, Song ES, Kim JW, Lee JH, Gautam R, Kim HJ, Kim YG, Cho AR, Yang SJ, Acharya M, Kim CY, Lee BC, Kim CH, Oh HG, Kwag JH, Yoon DH, Kim HA, Heo Y. Major environmental characteristics of swine husbandry that affect exposure to dust and airborne endotoxins. J Toxicol Environ Health A 2019; 82:233-243. [PMID: 30821635 DOI: 10.1080/15287394.2019.1584596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inhalation of organic dust or endotoxin in the dust is considered a major risk factor for occupational respiratory illnesses. Eighteen environmental characteristics associated with animal husbandry were surveyed at 36 swine farms in seven provinces throughout South Korea. Association of these factors with levels of indoor inhalable or respirable dust or endotoxin in each type of dust was analyzed using backward stepwise multiple linear regression models. Mean levels of inhalable and respirable dust were 0.5 ± 0.35 and 0.13 ± 0.12 mg/m3 air, respectively, and mean endotoxin levels were 676 ± 463 and 48.4 ± 68.2 EU/m3, respectively, in each dust. Factors negatively associated with inhalable dust levels included pig age, indoor farm temperature, number of pigs in the building, hr/week of indoor farm work, and partly slatted floor. Factors positively associated with inhalable dust levels included floor cleaning by manual scraping and slurry deposit duration. Factors negatively associated with the level of endotoxin in inhalable dust included pig age, temperature, number of pigs, hr/week of indoor farm work, and partly slatted floor. Factors negatively associated with respirable dust level included area of the confinement building, whereas factors positively associated with respirable dust level included the number of pigs and stocking density. Endotoxin levels in respirable dust were negatively associated with h/week of indoor farm work and partly slatted floor. Overall, data suggest that husbandry variables may be adjusted to control dust and airborne endotoxin levels in swine farms.
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Affiliation(s)
- So-Jung Shin
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Eun-Seob Song
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Jae-Won Kim
- b Institute of Health & Environment, Graduate School of Public Health , Seoul National University , Seoul , Republic of Korea
| | - Jae-Hee Lee
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Ravi Gautam
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Hyeon-Ji Kim
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Yeon-Gyeong Kim
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Ah-Rang Cho
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Su-Jeong Yang
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Manju Acharya
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Chang-Yul Kim
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
| | - Byung-Chul Lee
- c Technology Services Division , National Institute of Animal Science , Wanju , Republic of Korea
| | - Chang-Han Kim
- c Technology Services Division , National Institute of Animal Science , Wanju , Republic of Korea
| | - Hyeong-Geu Oh
- c Technology Services Division , National Institute of Animal Science , Wanju , Republic of Korea
| | - Jung-Hoon Kwag
- d Animal Environment Division , National Institute of Animal Science , Wanju , Republic of Korea
| | - Dae-Hoon Yoon
- e Technology Services Department , Gyeonggi Agricultural Research Extension Services , Hwaseong , Republic of Korea
| | - Hyoung-Ah Kim
- f Department of Preventive Medicine, College of Medicine , The Catholic University of Korea , Seoul , Republic of Korea
| | - Yong Heo
- a Department of Occupational Health, College of Bio-Medical Sciences , Daegu Catholic University , Daegu , Republic of Korea
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Burke JM, Pickett AT, Howell BS, Wood EL, Acharya M, Miller JE. 134 Examining Relationships between Production and Gastrointestinal Nematode (GIN) Measures in Organic and Conventionally Reared Katahdin Lambs. J Anim Sci 2018. [DOI: 10.1093/jas/sky027.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - A T Pickett
- USDA, ARS, Booneville, AR
- Southern Arkansas University, Magnolia, AR
| | - B S Howell
- University of Arkansas, Fayetteville, AR
- Oakridge Institute for Science and Education, Oakridge, TN
| | | | - M Acharya
- University of Arkansas, Fayetteville, AR
| | - J E Miller
- Louisiana State University, Baton Rouge, LA
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Shah SK, Acharya M, Alam SI, Hossain MA, Aftabuddin M. Right Atrial Myxoma: An Uncommon Presentation. Mymensingh Med J 2017; 26:694-697. [PMID: 28919631] [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: 06/07/2023]
Abstract
There are two types of tumors found in the cardiac chamber. These are divided into primary intra-cardiac tumors and secondary intra-cardiac tumors. Primary intra cardiac tumors are rare and among them 29% are myxomas. Majority of them are found in the left atrium. Here, we report a case of a myxoma in the right atrium with hepatomegaly and Hepatitis B virus infection. The coexistence of all these conditions is very rare. A 52 years old patient presented with history of shortness of breath on exertion along with fever and generalized weakness for 6 months which aggravated lately for last 2 months. He was then taken for better medical care and hospitalization. On cardiac evaluation he had soft S1 and S2 over the tricuspid region on the right lower parasternal region. He had bilateral mild pitting pedal edema. On further examination, it was revealed that he had mild tender hepatomegaly with jaundice. His blood analysis for HBsAg was positive. Echocardiogram showed right atrial myxoma of 14.3cm² almost completely occupying the right atrium and even protruding into the Inferior Venacava however not fully obstructing it. The inferior vena cava size was mildly dilated (22mm). Abdominal ultrasound report showed hepatomegaly (17.6cm) with coarse hepatic parenchyma. In this report, we emphasize the rarity of myxoma in the Right Atrium, its difficult diagnosis because of the location and the atypical presentation in the echocardiograph.
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Affiliation(s)
- S K Shah
- Dr Sanjeet Kumar Shah, MS Resident (Phase-B), Department of Cardiac Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
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Rorie RW, Newberry HR, Lester TD, Acharya M, Hansen CR. 8 ANTI-MÜLLERIAN HORMONE AT WEANING AND BREEDING AS A PREDICTOR OF BEEF HEIFER FERTILITY. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study examined the relationship between serum anti-Müllerian hormone (AMH) concentration at weaning and breeding to determine if either or both measures could predict subsequent fertility of beef heifers. Blood was collected from 71 Angus based heifers at ~7 and 14 months of age and serum stored frozen (−20°C) until analysis for AMH, using bovine AMH ELISA kits (AL115; Ansh Laboratories, Webster, TX, USA). Before breeding, transrectal ultrasonography was used to determine cyclic status of heifers. Heifers received 25 mg of prostaglandin F2α (PGF) and those detected in oestrus were AI ~12 h after detected oestrus. Heifers not detected in oestrus after 7 days received a second PGF injection and oestrus detection and AI continued for 4 days. Ten days later, the heifers were exposed to fertile bulls for a 45-days breeding season. At 50 to 60 days after insemination, transrectal ultrasonography was used to identify pregnant heifers and to confirm conception date based on fetal size. At 60 days after bull removal, ultrasonography was performed to determine pregnancy in heifers conceiving during the breeding season and confirm continuing pregnancy in heifers previously identified as pregnant. Based on fetal size at ultrasonography, the oestrous cycle after initiation of breeding when conception occurred was estimated. For comparison, AI pregnancies were considered cycle 1, and pregnancies initiated during subsequent 21-day intervals of the breeding season were classified as cycles 2, 3, and 4, respectively. For analysis, frequency distribution was used to assign serum AMH concentration measured at weaning, breeding, and the change from weaning to breeding, into quartiles. Comparisons were then made via Chi-squared analysis for heifers in each quartile that were cyclic at synchronization, detected in oestrus, conceived after AI, pregnant at the end of the breeding season, and the estimated cycle that conception occurred. Comparison of heifers based on serum AMH quartiles at weaning failed (P ≥ 0.35) to detect any effect of AMH on subsequent heifer cyclicity at breeding, oestrous response after synchronization, AI conceptions, overall pregnancy rate, or estimated oestrous cycle of the breeding season when conception occurred. Based on AMH concentration at breeding, heifers in the lowest quartile (Q1) had a lower (10%; P = 0.02) AI conception rate than heifers in other quartiles (43 to 73%), and conceived at a later oestrous cycle (P = 0.03) in the breeding season. Comparison of heifers based on the change in AMH concentrations from weaning to breeding revealed that none of the heifers in the lowest quartile (Q1) conceived after AI, compared with 80% in the highest quartile (Q4; P < 0.001). Heifers in the lowest quartile also conceived at a later oestrous cycle in the breeding season than heifers in the other quartiles (P = 0.01). Results indicate that either AMH concentration at breeding or the change in AMH from weaning to breeding can identify beef heifers more likely to conceive to AI and to conceive early in the breeding season.
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Acharya M, Burke JM, Hansen C, Rorie RW. 21 EVALUATION OF SEMEN EXTENDERS FOR SHORT-TERM STORAGE OF RAM SEMEN AT 4°C. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Preliminary studies found that progressive motility of ram sperm declined ~75% when stored at 4°C for 24 h, and continued to decline over time when using extenders supplemented with 5% egg yolk. The current study evaluated the effects of different combinations of extenders, ethylene glycol (EG), egg yolk, and penicillamine, hypotaurine, and epinephrine on ram sperm progressive motility during storage. Semen collected from 3 Katahdin and 2 Suffolk rams by electroejaculation was distributed across treatment combinations consisting of either TRIS citrate or milk extender supplemented with 5 or 20% (v/v) egg yolk, ± 1% ethylene glycol (EG) and ± 20 µM penicillamine, 10 µM hypotaurine and 2 µM epinephrine (PHE). For each semen collection, TRIS citrate extender was prepared from a 4× solution so that the TRIS, citric acid and fructose concentration were constant at 300, 94.7, 27.8 mM, respectively, regardless of semen dilution factor. A 4× milk extender was also used so that the extender contained 10% (w/v) milk powder, regardless of semen dilution factor. Both extenders were supplemented with 50 µg mL−1 of gentamicin. Semen was diluted in extender to a final concentration of 300 million sperm/mL in 1.5-mL tubes, and cooled to 4°C over a 2- to 3-h period. Semen was evaluated initially and daily for 3 days, using computer-assisted sperm analysis. Repeated-measures data were analysed using the mixed model (JMP 12.0 software; SAS Institute Inc., Cary, NC, USA) for main effects of extender, supplements, and their interactions. Nonsignificant interactions were removed from the model before reanalysis. Data are presented as LSMeans ± standard errors. Initially, sperm progressive motility averaged 41 ± 6.2% across treatments. After an initial decline, overall progressive motility did not change (P > 0.05) significantly (mean of 22.3 ± 1.6 and 23.05 ± 1.3% at 48 and 72 h, respectively). Over time and across treatment combinations, mean progressive motility was maintained to a greater extent (P < 0.01) by milk than TRIS-based extender (28.2 ± 1.1 v. 18.9 ± 1.1%, respectively). Across extenders, progressive motility of sperm was similar (P = 0.50) for 5 and 20% egg yolk (22.2 ± 1.4 v. 24.4 ± 1.4). Addition of 1% EG increased (P < 0.01) progressive motility (25.8 ± 1.05 v. 21.3 ± 1.05). Addition of PHE also increased (P < 0.01) progressive motility from 20.9 ± 1.04 to 26.3 ± 1.04%. There was an interaction between EG and % egg yolk, primarily due to an effect on sperm stored in TRIS citrate extender. Addition of 1% EG to extender containing 5% egg yolk improved (P < 0.01) progressive motility from 18.5 ± 1.5 to 26.9 ± 1.5%). Addition of 1% EG to TRIS citrate extender also increased (P < 0.05) progressive motility, from 14.6 ± 1.5 to 23.2 ± 1.5%. Results indicate that milk extender supplemented with 1% EG, PHE, and either 5 or 20% egg yolk is capable of maintaining progressive motility of ram semen at ~60% of its initial value when stored at 4°C for up to 72 h. Additional studies are needed to evaluate pregnancy rate after insemination of ewes with stored semen.
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Acharya M, Burke JM, Rorie RW. 102 Affect of Ram Semen Extenders and Supplements on Computer Assisted Sperm Analysis Parameters. J Anim Sci 2016. [DOI: 10.2527/ssasas2017.0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Acharya M, Burke JM, Smyth E, Ngere L, Rorie RW. 1724 Serum anti-mullerian hormone as an indicator of fertility in Katahdin ewes. J Anim Sci 2016. [DOI: 10.2527/jam2016-1724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Acharya M, Burke JM, Coffey KP, Kegley EB, Miller JE, Smyth E, Welborn MG, Terrill TH, Mosjidis JA, Rosenkrans C. Changes in concentrations of trace minerals in lambs fed sericea lespedeza leaf meal pellets with or without dietary sodium molybdate12. J Anim Sci 2016; 94:1592-9. [DOI: 10.2527/jas.2015-9910] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Acharya
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - J. M. Burke
- USDA, ARS, Dale Bumpers Small Farms Research Center, Booneville, AR 72927
| | - K. P. Coffey
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - E. B. Kegley
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - J. E. Miller
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803
| | - E. Smyth
- Department of Animal Science, University of Arkansas, Fayetteville 72701
- USDA, ARS, Dale Bumpers Small Farms Research Center, Booneville, AR 72927
| | - M. G. Welborn
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803
| | - T. H. Terrill
- Agricultural Research Station, Fort Valley State University, Fort Valley, GA 31030
| | - J. A. Mosjidis
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn 36849
| | - C. Rosenkrans
- Department of Animal Science, University of Arkansas, Fayetteville 72701
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Acharya M, Burke JM, Smyth E, Davis A, Lester TD, Rorie RW. 107 Effect of semen extender and storage temperature on ram sperm motility over time. J Anim Sci 2016. [DOI: 10.2527/ssasas2015-107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Acharya M. Adapting Pharmaceutical Pricing and Reimbursement Strategies for Achieving Universal Health Coverage in Nepal: Lessons from Selected Low- And Lower-Middle-Income Countries. Indian J Pharm Sci 2016. [DOI: 10.4172/pharmaceutical-sciences.1000156] [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: 11/09/2022] Open
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Burke JM, Miller JE, Terrill TH, Smyth E, Acharya M. Examination of commercially available copper oxide wire particles in combination with albendazole for control of gastrointestinal nematodes in lambs. Vet Parasitol 2015; 215:1-4. [PMID: 26790729 DOI: 10.1016/j.vetpar.2015.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 10/14/2015] [Accepted: 11/03/2015] [Indexed: 10/22/2022]
Abstract
Control of gastrointestinal nematodes (GIN) remains a critical issue due to the prevalence of anthelmintic resistance. The objective of the experiment was to determine the efficacy of copper oxide wire particles (COWP) from three commercial sources and a combination of COWP and albendazole to control GIN and/or Haemonchus contortus in lambs. Naturally infected Katahdin lambs in early June 2014 and 2015 were randomly assigned to receive no COWP (CON; n=9 and 12) or 2g COWP in a gel capsule as Copasure(®) (COP; n=4 and 17; Animax Ltd.), copper oxide-wire form (AUS; n=7 in 2014 only; Pharmplex), Ultracruz™ (ULT; n=8 and 15; Santa Cruz Animal Health™), no COWP and albendazole (CON+alb; n=10 in 2015 only; 15mg/kg BW; Valbazen(®); Zoetis Animal Health), or COWP+alb (n=7 and 11; in 2014, lambs were administered alb on day 3). Lambs grazed grass pastures as a group and were supplemented with 227g/lamb daily of a commercial grain mix (15% crude protein) and the same amount of alfalfa pellets. Feces were collected on days 0 (day of COWP treatment), 7, and 14 for determination of fecal egg counts (FEC). Pooled (2014) or pooled treatment group feces were cultured on days 0, 7, and 14 (2015 only) to determine GIN genera. Data were analyzed using repeated measures in a mixed model, and FEC were log transformed. The predominant GIN on day 0 was H. contortus (87%) in 2014, and there was a mixed population in 2015. The mean FEC was reduced by day 7 in AUS and ULT lambs (treatment×day, P=0.001), and all of the COWP products were similar. By day 14, the AUS FEC were lower than the CON and COP groups. When examining the combination of COWP and synthetic anthelmintic, the FEC of COWP+alb were reduced to nearly 0eggs/g (back-transformed) and lower than the other groups (treatment×day, P=0.001). The percentage of H. contortus in cultured feces was reduced to a greater extent in the COWP than CON or CON+alb groups of lambs. In a mixed GIN population, the COWP products appeared to be similar in efficacy and using a combination of COWP+alb increased the efficacy not only against H. contortus, but all GIN genera present, offering options in the face of resistance to benzimidazoles.
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Affiliation(s)
- J M Burke
- Dale Bumpers Small Farms Research Center, USDA, ARS, Booneville, AR 72927, USA.
| | - J E Miller
- Department of Pathobiological Sciences, School of Veterinary Medicine and Departments of Animal Science and Veterinary Science, Louisiana State University, Baton Rouge, LA 70803, USA
| | - T H Terrill
- Fort Valley State University, Fort Valley, GA 31030, USA
| | - E Smyth
- Dale Bumpers Small Farms Research Center, USDA, ARS, Booneville, AR 72927, USA
| | - M Acharya
- University of Arkansas, Fayetteville, AR 72702, USA
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Toomey D, Prattley S, Mohiyaddin S, Tahir Z, Acharya M. Can ccs and nyha and lung functions be an indicator of mortality in female coronary artery bypass grafting patients for risk stratification in cardiac surgery. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.124] [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: 11/25/2022]
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Hanna N, Acharya M, Limoli C. Radiation Therapy Versus Chemotherapy Impact on Mature and Immature Neural Spine Density, In Addition to Neuronal Architecture, in the Hippocampus. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1911] [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: 11/16/2022]
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Rocos B, Acharya M, Chesser TJS. The Pattern of Injury and Workload Associated with Managing Patients After Suicide Attempt by Jumping from a Height. Open Orthop J 2015; 9:395-8. [PMID: 26401162 PMCID: PMC4578128 DOI: 10.2174/1874325001509010395] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 04/19/2015] [Accepted: 05/18/2015] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The aim of this study is to examine the pattern of injuries sustained and the hospital workload generated by patients who deliberately jump from height. METHOD One regional trauma centre's admissions were scrutinized to find all patients who jumped, or were suspected of jumping from one storey or greater over a four year period. Patients who died prior to admission were excluded. RESULTS 41 patients were included. Each patient suffered a mean of 3 injuries. The probability of calcaneal fracture was 0.32, of ankle injury 0.2, tibial fracture 0.2, femoral fracture 0.17, pelvic fracture 0.34, spinal injury 0.51, upper limb injury 0.26, head injury 0.2 and trunk injury 0.32. The mean length of inpatient stay was 7.9 days, rising to 17.9 for the 11 patients requiring intensive care. The average number of operations per patient was 1.5. CONCLUSION Patients who jump from height generate large volumes of operative and inpatient workloads. Our data show that there may be a protective effect of limb trauma against lethal head, chest or pelvic injury. Injury to the upper limb is associated with a 4 times greater risk of head injury. The incidence of pelvic injury in this series is higher than in previous work. There was a high incidence of spinal fracture. Patients generated 64 surgical procedures and consumed a mean of 17.9 inpatient days, including prolonged stay in intensive care.
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Affiliation(s)
- B Rocos
- Department of Orthopaedics, Southmead Hospital, North Bristol NHS Trust, Bristol, BS10 5NB, UK
| | - M Acharya
- Department of Orthopaedics, Southmead Hospital, North Bristol NHS Trust, Bristol, BS10 5NB, UK
| | - T J S Chesser
- Department of Orthopaedics, Southmead Hospital, North Bristol NHS Trust, Bristol, BS10 5NB, UK
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Abstract
A survey was carried out to determine the population of street dogs and peoples opinion about their persistence in Pokhara Valley, Nepal. Information of street dog population was necessary to construct a future animal birth control (ABC) plans. For this, mark-resight survey method was used. Further, local residents were interviewed to know their opinion about the persistence of street dog population in that area. Among total 1767 dogs, 1072 (60.66%) were male, 641 (36.28%) were female and 54 (3.06%) were puppies. About 367 (57.25%) of the female street dogs were already spayed. A total of 371 local residents were interviewed to know their opinion about the causes of persistent street dogs in Pokhara Valley. Numerous reasons were put forward including unmanaged slaughter house (24.5%), abandoned due to disease (15.4%) and abandoned due to unmanageable estrus behavior (10.2%). Future ABC programs may need to consider these factors responsible for maintaining persistent street dog population, to enable control over street dog population in an efficient and sustainable manner.DOI: http://dx.doi.org/10.3329/bjvm.v13i1.23722Bangl. J. Vet. Med. (2015). 13 (1): 65-70
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Bouyoucef SE, Uusitalo V, Kamperidis V, De Graaf M, Maaniitty T, Stenstrom I, Broersen A, Scholte A, Saraste A, Bax J, Knuuti J, Furuhashi T, Moroi M, Awaya T, Masai H, Minakawa M, Kunimasa T, Fukuda H, Sugi K, Berezin A, Kremzer A, Clerc O, Kaufmann B, Possner M, Liga R, Vontobel J, Mikulicic F, Graeni C, Benz D, Kaufmann P, Buechel R, Ferreira M, Cunha M, Albuquerque A, Ramos D, Costa G, Lima J, Pego M, Peix A, Cisneros L, Cabrera L, Padron K, Rodriguez L, Heres F, Carrillo R, Mena E, Fernandez Y, Huizing E, Van Dijk J, Van Dalen J, Timmer J, Ottervanger J, Slump C, Jager P, Venuraju S, Jeevarethinam A, Yerramasu A, Atwal S, Mehta V, Lahiri A, Arjonilla Lopez A, Calero Rueda MJ, Gallardo G, Fernandez-Cuadrado J, Hernandez Aceituno D, Sanchez Hernandez J, Yoshida H, Mizukami A, Matsumura A, Smettei O, Abazid R, Sayed S, Mlynarska A, Mlynarski R, Golba K, Sosnowski M, Winther S, Svensson M, Jorgensen H, Bouchelouche K, Gormsen L, Holm N, Botker H, Ivarsen P, Bottcher M, Cortes CM, Aramayo G E, Daicz M, Casuscelli J, Alaguibe E, Neira Sepulveda A, Cerda M, Ganum G, Embon M, Vigne J, Enilorac B, Lebasnier A, Valancogne L, Peyronnet D, Manrique A, Agostini D, Menendez D, Rajpal S, Kocherla C, Acharya M, Reddy P, Sazonova I, Ilushenkova Y, Batalov R, Rogovskaya Y, Lishmanov Y, Popov S, Varlamova N, Prado Diaz S, Jimenez Rubio C, Gemma D, Refoyo Salicio E, Valbuena Lopez S, Moreno Yanguela M, Torres M, Fernandez-Velilla M, Lopez-Sendon J, Guzman Martinez G, Puente A, Rosales S, Martinez C, Cabada M, Melendez G, Ferreira R, Gonzaga A, Santos J, Vijayan S, Smith S, Smith M, Muthusamy R, Takeishi Y, Oikawa M, Goral JL, Napoli J, Montana O, Damico A, Quiroz M, Damico A, Forcada P, Schmidberg J, Zucchiatti N, Olivieri D, Jeevarethinam A, Venuraju S, Dumo A, Ruano S, Rakhit R, Davar J, Nair D, Cohen M, Darko D, Lahiri A, Yokota S, Ottervanger J, Maas A, Mouden M, Timmer J, Knollema S, Jager P, Sanja Mazic S, Lazovic B, Marina Djelic M, Jelena Suzic Lazic J, Tijana Acimovic T, Milica Deleva M, Vesnina Z, Zafrir N, Bental T, Mats I, Solodky A, Gutstein A, Hasid Y, Belzer D, Kornowski R, Ben Said R, Ben Mansour N, Ibn Haj Amor H, Chourabi C, Hagui A, Fehri W, Hawala H, Shugushev Z, Patrikeev A, Maximkin D, Chepurnoy A, Kallianpur V, Mambetov A, Dokshokov G, Teresinska A, Wozniak O, Maciag A, Wnuk J, Dabrowski A, Czerwiec A, Jezierski J, Biernacka K, Robinson J, Prosser J, Cheung G, Allan S, Mcmaster G, Reid S, Tarbuck A, Martin W, Queiroz R, Falcao A, Giorgi M, Imada R, Nogueira S, Chalela W, Kalil Filho R, Meneghetti W, Matveev V, Bubyenov A, Podzolkov V, Shugushev Z, Maximkin D, Chepurnoy A, Baranovich V, Faibushevich A, Kolzhecova Y, Volkova O, Kallianpur V, Peix A, Cabrera L, Padron K, Rodriguez L, Fernandez J, Lopez G, Mena E, Fernandez Y, Dondi M, Paez D, Butcher C, Reyes E, Al-Housni M, Green R, Santiago H, Ghiotto F, Hinton-Taylor S, Pottle A, Mason M, Underwood S, Casans Tormo I, Diaz-Exposito R, Plancha-Burguera E, Elsaban K, Alsakhri H, Yoshinaga K, Ochi N, Tomiyama Y, Katoh C, Inoue M, Nishida M, Suzuki E, Manabe O, Ito Y, Tamaki N, Tahilyani A, Jafary F, Ho Hee Hwa H, Ozdemir S, Kirilmaz B, Barutcu A, Tan Y, Celik F, Sakgoz S, Cabada Gamboa M, Puente Barragan A, Morales Vitorino N, Medina Servin M, Hindorf C, Akil S, Hedeer F, Jogi J, Engblom H, Martire V, Pis Diez E, Martire M, Portillo D, Hoff C, Balche A, Majgaard J, Tolbod L, Harms H, Bouchelouche K, Soerensen J, Froekiaer J, Gormsen L, Nudi F, Neri G, Procaccini E, Pinto A, Vetere M, Biondi-Zoccai G, Falcao A, Chalela W, Giorgi M, Imada R, Soares J, Do Val R, Oliveira M, Kalil Filho R, Meneghetti J, Tekabe Y, Anthony T, Li Q, Schmidt A, Johnson L, Groenman M, Tarkia M, Kakela M, Halonen P, Kiviniemi T, Pietila M, Yla-Herttuala S, Knuuti J, Roivainen A, Saraste A, Nekolla S, Swirzek S, Higuchi T, Reder S, Schachoff S, Bschorner M, Laitinen I, Robinson S, Yousefi B, Schwaiger M, Kero T, Lindsjo L, Antoni G, Westermark P, Carlson K, Wikstrom G, Sorensen J, Lubberink M, Rouzet F, Cognet T, Guedj K, Morvan M, El Shoukr F, Louedec L, Choqueux C, Nicoletti A, Le Guludec D, Jimenez-Heffernan A, Munoz-Beamud F, Sanchez De Mora E, Borrachero C, Salgado C, Ramos-Font C, Lopez-Martin J, Hidalgo M, Lopez-Aguilar R, Soriano E, Okizaki A, Nakayama M, Ishitoya S, Sato J, Takahashi K, Burchert I, Caobelli F, Wollenweber T, Nierada M, Fulsche J, Dieckmann C, Bengel F, Shuaib S, Mahlum D, Port S, Gemma D, Refoyo E, Cuesta E, Guzman G, Lopez T, Valbuena S, Fernandez-Velilla M, Del Prado S, Moreno M, Lopez-Sendon J, Harbinson M, Donnelly L, Einstein AJ, Johnson LL, Deluca AJ, Kontak AC, Groves DW, Stant J, Pozniakoff T, Cheng B, Rabbani LE, Bokhari S, Caobelli F, Schuetze C, Nierada M, Fulsche J, Dieckmann C, Bengel F, Aguade-Bruix S, Pizzi M, Romero-Farina G, Terricabras M, Villasboas D, Castell-Conesa J, Candell-Riera J, Brunner S, Gross L, Todica A, Lehner S, Di Palo A, Niccoli Asabella A, Magarelli C, Notaristefano A, Ferrari C, Rubini G, Sellem A, Melki S, Elajmi W, Hammami H, Ziadi M, Montero J, Ameriso J, Villavicencio R, Benito Gonzalez TF, Mayorga Bajo A, Gutierrez Caro R, Rodriguez Santamarta M, Alvarez Roy L, Martinez Paz E, Barinaga Martin C, Martin Fernandez J, Alonso Rodriguez D, Iglesias Garriz I, Gemma D, Refoyo E, Cuesta E, Guzman G, Valbuena S, Rosillo S, Del Prado S, Torres M, Moreno M, Lopez-Sendon J, Taleb S, Cherkaoui Salhi G, Regbaoui Y, Ait Idir M, Guensi A, Puente A, Rosales S, Martinez C, Cabada M, Benito Gonzalez TF, Mayorga Bajo A, Gutierrez Caro R, Rodriguez Santamarta M, Alvarez Roy L, Martinez Paz E, Martin Lopez CE, Castano Ruiz M, Martin Fernandez J, Iglesias Garriz I. Poster Session 2: Monday 4 May 2015, 08:00-18:00 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Acharya M, Burke JM, Coffey KP, Kegley EB, Miller JE, Huff GR, Smyth E, Terrill TH, Mosjidis JA, Rosenkrans C. Changes in hematology, serum biochemistry, and gastrointestinal nematode infection in lambs fed sericea lespedeza with or without dietary sodium molybdate1,2. J Anim Sci 2015; 93:1952-61. [DOI: 10.2527/jas.2014-8584] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Acharya
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - J. M. Burke
- USDA, ARS, Dale Bumpers Small Farms Research Center, Booneville, AR 72927
| | - K. P. Coffey
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - E. B. Kegley
- Department of Animal Science, University of Arkansas, Fayetteville 72701
| | - J. E. Miller
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803
| | - G. R. Huff
- USDA, ARS, Poultry Production and Product Safety Research, Fayetteville, AR 72701
| | - E. Smyth
- Department of Animal Science, University of Arkansas, Fayetteville 72701
- USDA, ARS, Dale Bumpers Small Farms Research Center, Booneville, AR 72927
| | - T. H. Terrill
- Agricultural Research Station, Fort Valley State University, Fort Valley, GA 31030
| | - J. A. Mosjidis
- Department of Agronomy and Soils, Auburn University, Auburn, AL 36849
| | - C. Rosenkrans
- Department of Animal Science, University of Arkansas, Fayetteville 72701
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Raghunadharao D, Wilhelm FE, Acharya M, Advani SH, Achrekar SD, Doval DC. Phase 1 dose escalation study of rigosertib by 2-, 4-, or 8-hour infusion twice-weekly in patients with advanced cancer. Indian J Cancer 2014; 51:40-4. [DOI: 10.4103/0019-509x.134617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Burke J, Miller J, Terrill T, Orlik S, Acharya M, Garza J, Mosjidis J. Sericea lespdeza as an aid in the control of Emeria spp. in lambs. Vet Parasitol 2013; 193:39-46. [DOI: 10.1016/j.vetpar.2012.11.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 11/27/2012] [Accepted: 11/28/2012] [Indexed: 11/28/2022]
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Chi KN, Tolcher A, Lee P, Rosen PJ, Kollmannsberger CK, Papadopoulos KP, Patnaik A, Molina A, Jiao J, Pankras C, Kaiser B, Bernard A, Tran N, Acharya M. Effect of abiraterone acetate plus prednisone on the pharmacokinetics of dextromethorphan and theophylline in patients with metastatic castration-resistant prostate cancer. Cancer Chemother Pharmacol 2012; 71:237-44. [PMID: 23064959 DOI: 10.1007/s00280-012-2001-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 09/29/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE To assess the effect of abiraterone acetate plus prednisone on the pharmacokinetics of dextromethorphan HBr (CYP2D6 substrate) and theophylline (CYP1A2 substrate) in patients with metastatic castration-resistant prostate cancer (mCRPC). METHODS Men with progressive metastatic mCRPC who failed gonadotropin-releasing hormone therapy and ≥1 lines of chemotherapy were enrolled. Patients received two doses of dextromethorphan HBr-30 mg (n = 18; group A) or theophylline-100 mg (n = 16; group B) under fasting conditions; one dose on cycle 1, day -8, and the other dose on cycle 1, day 8. Only patients with extensive CYP2D6 metabolizing status were assigned to group A. All patients received continuous daily oral abiraterone acetate (1,000 mg) plus prednisone (10 mg) starting on cycle 1, day 1. RESULTS Coadministration of abiraterone acetate plus prednisone increased the systemic exposure of dextromethorphan by approximately 100%. Ratios of geometric means for maximum plasma concentration (C(max)) (275.36%) and area under plasma concentration-time curves from time 0 to 24 h (AUC(24h)) (268.14%) of dextromethorphan were outside the bioequivalence limit. The pharmacokinetics of theophylline was unaltered following coadministration of abiraterone acetate plus prednisone. Ratios of geometric means [C(max); 102.36% and AUC(24h); 108.03%] of theophylline exposure parameters were within the bioequivalence limit. The safety profile of abiraterone acetate was consistent with reported toxicities. CONCLUSION Abiraterone acetate plus prednisone increased the exposure of dextromethorphan, suggesting a need for caution when coadministrating with known CYP2D6 substrates. The pharmacokinetics of theophylline was unaffected when coadministered with abiraterone acetate plus prednisone.
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Affiliation(s)
- K N Chi
- British Columbia Cancer Agency, Vancouver, BC, Canada.
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Lin Y, Limoli C, Acharya M, Christie L, Bosch O, Kumar V, Hamamura M, Roa D. SU-E-T-271: Irradiating a Single Hippocampus in a Small Rodent Using VMAT- RapidArc SRS: Preliminary Data. Med Phys 2012; 39:3765-3766. [DOI: 10.1118/1.4735338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Y Lin
- University Of California, Irvine, Orange, CA
| | - C Limoli
- University Of California, Irvine, Orange, CA
| | - M Acharya
- University Of California, Irvine, Orange, CA
| | - L Christie
- University Of California, Irvine, Orange, CA
| | - O Bosch
- University Of California, Irvine, Orange, CA
| | - V Kumar
- University Of California, Irvine, Orange, CA
| | - M Hamamura
- University Of California, Irvine, Orange, CA
| | - D Roa
- University Of California, Irvine, Orange, CA
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