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Al-Fadhly A, Alosaimi M, Alqurashi W, Aldawsari A, Alhawiti M, Alharthi A, Alzahrani KT. Assessment of antenatal care knowledge and awareness among women living in Saudi Arabia. MS 2022. [DOI: 10.54905/disssi/v26i127/ms381e2443] [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: 11/07/2022]
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Alosaimy R, Almaghrabi M, Basahal A, Alharthi A, Khawandanah B, Zamil G, Alansari R, Alotiby A. A questionnaire-based survey to assess knowledge and attitude regarding food allergy among public and food allergic patients in Makkah region, Saudi Arabia: A comparison study. disssi 2022. [DOI: 10.54905/disssi/v26i124/ms212e2235] [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: 11/05/2022]
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Alotiby A, Almaghrabi M, Alosaimy R, Alharthi A, Khawandanah B, Alansari R, Basahal A, Zamil G. Learning Environment Quality for Medical Students at Umm Al-Qura University: A Comprehensive Study on Stressors, Sources, and Solutions After Introduction of a New Bachelor of Medicine and Bachelor of Surgery (MBBS) Curriculum. Adv Med Educ Pract 2021; 12:1487-1497. [PMID: 34992487 PMCID: PMC8709795 DOI: 10.2147/amep.s343792] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Due to introduction of a new curriculum and the related stressors that medical students might encounter, we aimed to assess the quality of the students' learning environment across academic years at Umm Al-Qura University (UQU), by evaluating stress levels, their sources, and impacts on students, to help improve the quality of learning environment and protect students from personal and academic burnout. METHODS We conducted a descriptive cross-sectional study in August and September of 2020 on 572 students enrolled in the new Bachelor of Medicine and Bachelor of Surgery (MBBS) curriculum at UQU. All statistical analyses were performed using SPSS software and two-tailed tests. RESULTS In total, 46.5% of participants encountered severe stress levels during their studies at UQU. In term of stressor sources, the highest prevalence of severe stress was found among students who lacked learning resources (68.8%), followed by those who complained of ambiguity in teaching, learning, and assessment strategies (64.1%). Self-study strategy issues (58.4%) and difficulty in reading textbooks (58.2%) also ranked high. Anxiety was often reported by the students as an impact of stress (62.9%), followed by mood swings (60%). Severe stress levels showed a statistically significant relationship to gender, being highest among females (P = 0.001). For a solution to manage the stress, 79% of the students suggested a supportive learning environment and identification of students' struggles at early stages. CONCLUSION Almost half the medical students were severely stressed after the new curriculum was introduced. Therefore, professors and universities should look out for potential stressors and help students overcome them. Universities can also help by offering counseling services to students, improving the student tutoring system, providing appropriate learning environment and resources, and including stress management courses as a part of the overall curriculum.
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Affiliation(s)
- Amna Alotiby
- Department of Hematology and Immunology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Murouj Almaghrabi
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Rawan Alosaimy
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Amjad Alharthi
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Bashaer Khawandanah
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ruba Alansari
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ahaad Basahal
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ghofran Zamil
- Department of Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
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Vailati-Riboni M, Coleman DN, Lopreiato V, Alharthi A, Bucktrout RE, Abdel-Hamied E, Martinez-Cortes I, Liang Y, Trevisi E, Yoon I, Loor JJ. Feeding a Saccharomyces cerevisiae fermentation product improves udder health and immune response to a Streptococcus uberis mastitis challenge in mid-lactation dairy cows. J Anim Sci Biotechnol 2021; 12:62. [PMID: 33827684 PMCID: PMC8028142 DOI: 10.1186/s40104-021-00560-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/18/2021] [Indexed: 11/10/2022] Open
Abstract
Background We aimed to characterize the protective effects and the molecular mechanisms of action of a Saccharomyces cerevisiae fermentation product (NTK) in response to a mastitis challenge. Eighteen mid-lactation multiparous Holstein cows (n = 9/group) were fed the control diet (CON) or CON supplemented with 19 g/d NTK for 45 d (phase 1, P1) and then infected in the right rear quarter with 2500 CFU of Streptococcus uberis (phase 2, P2). After 36-h, mammary gland and liver biopsies were collected and antibiotic treatment started until the end of P2 (9 d post challenge). Cows were then followed until day 75 (phase 3, P3). Milk yield (MY) and dry matter intake (DMI) were recorded daily. Milk samples for somatic cell score were collected, and rectal and udder temperature, heart and respiration rate were recorded during the challenge period (P2) together with blood samples for metabolite and immune function analyses. Data were analyzed by phase using the PROC MIXED procedure in SAS. Biopsies were used for transcriptomic analysis via RNA-sequencing, followed by pathway analysis. Results DMI and MY were not affected by diet in P1, but an interaction with time was recorded in P2 indicating a better recovery from the challenge in NTK compared with CON. NTK reduced rectal temperature, somatic cell score, and temperature of the infected quarter during the challenge. Transcriptome data supported these findings, as NTK supplementation upregulated mammary genes related to immune cell antibacterial function (e.g., CATHL4, NOS2), epithelial tissue protection (e.g. IL17C), and anti-inflammatory activity (e.g., ATF3, BAG3, IER3, G-CSF, GRO1, ZFAND2A). Pathway analysis indicated upregulation of tumor necrosis factor α, heat shock protein response, and p21 related pathways in the response to mastitis in NTK cows. Other pathways for detoxification and cytoprotection functions along with the tight junction pathway were also upregulated in NTK-fed cows. Conclusions Overall, results highlighted molecular networks involved in the protective effect of NTK prophylactic supplementation on udder health during a subclinical mastitic event. Supplementary Information The online version contains supplementary material available at 10.1186/s40104-021-00560-8.
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Affiliation(s)
- M Vailati-Riboni
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA
| | - D N Coleman
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA
| | - V Lopreiato
- Department of Animal Sciences, Food and Nutrition (DIANA), Università Cattolica del Sacro Cuore, 29122, Piacenza, Italy
| | - A Alharthi
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA.,Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - R E Bucktrout
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA
| | - E Abdel-Hamied
- Department of Animal Medicine, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - I Martinez-Cortes
- Agricultural and Animal Production Department, UAM-Xochimilco, 04960, Mexico City, Mexico
| | - Y Liang
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA
| | - E Trevisi
- Department of Animal Sciences, Food and Nutrition (DIANA), Università Cattolica del Sacro Cuore, 29122, Piacenza, Italy
| | - I Yoon
- Diamond V, Cedar Rapids, IA, USA
| | - J J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, Urbana, IL, 61801, USA.
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Coleman DN, Alharthi A, Lopreiato V, Trevisi E, Miura M, Pan YX, Loor JJ. Choline supply during negative nutrient balance alters hepatic cystathionine β-synthase, intermediates of the methionine cycle and transsulfuration pathway, and liver function in Holstein cows. J Dairy Sci 2019; 102:8319-8331. [PMID: 31056334 DOI: 10.3168/jds.2019-16406] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/18/2019] [Indexed: 12/14/2022]
Abstract
Although choline requirements for cows are unknown, enhanced postruminal supply may decrease liver triacylglycerol and increase flux through the Met cycle to improve immunometabolic status during a negative nutrient balance (NNB). Our objectives were to investigate the effects of postruminal choline supply during a feed restriction-induced NNB on (1) hepatic activity cystathionine β-synthase and transcription of enzymes in the transsulfuration pathway and Met cycle; (2) hepatic metabolites in the Met cycle and the transsulfuration pathway, bile acids, and energy metabolism; and 3) plasma biomarkers of liver function, inflammation, and oxidative stress. Ten primiparous rumen-cannulated Holstein cows (158 ± 24 d postpartum) were used in a replicated 5 × 5 Latin square design with 4-d treatment periods and 10 d of recovery (14 d/period). Treatments were unrestricted intake with abomasal infusion of water, restricted intake (R; 60% of net energy for lactation requirements) with abomasal infusion of water, or R plus abomasal infusion of 6.25, 12.5, or 25 g/d choline ion. Liver tissue was collected on d 5 after infusions ended, and blood was collected on d 1, 3, and 5. Statistical contrasts were A0 versus R0 (CONT1), R versus the average of choline doses (CONT2), and tests of linear and quadratic effects of choline dose. Activity of cystathionine β-synthase was lower with R (CONT1) and decreased linearly with choline. Hepatic glutathione was not different with R or choline, but taurine tended to be greater with choline (CONT2). Betaine and carnitine were greater with R (CONT1) and further increased with choline (CONT2). Concentrations of NAD+ were greater with choline (CONT2). Cholic and glycol-chenodeoxycholic acids were decreased by R and choline, while taurocholic and tauro-chenodeoxycholic acids were not altered. Plasma aspartate aminotransferase and bilirubin were greater with R (CONT1) but decreased with choline (CONT2). Paraoxonase was lower with R and increased with choline (CONT2). Data suggest that enhanced supply of choline during NNB decreases entry of homocysteine to the transsulfuration pathway, potentially favoring remethylation to Met by acquiring a methyl group from betaine. As such, Met may provide methyl groups for synthesis of carnitine. Along with production data indicating that 12.5 g/d choline ion improved milk yield and liver fatty acid metabolism during NNB, the changes in blood biomarkers also suggest a beneficial effect of choline supply on liver function and oxidative stress.
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Affiliation(s)
- D N Coleman
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - A Alharthi
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - V Lopreiato
- Department of Health Science, Interdepartmental Services Centre of Veterinary for Human and Animal Health, Magna Græcia University of Catanzaro, 88100 Catanzaro, Italy
| | - E Trevisi
- Istituto di Zootecnica, Facoltà di Agraria, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - M Miura
- Ajinomoto Co. Inc., 210-8681 Tokyo, Japan
| | - Y-X Pan
- Department of Food Science and Human Nutrition, University of Illinois, Urbana 61801; Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - J J Loor
- Department of Animal Sciences, University of Illinois, Urbana 61801; Division of Nutritional Sciences, University of Illinois, Urbana 61801.
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Lopreiato V, Hosseini A, Rosa F, Zhou Z, Alharthi A, Trevisi E, Loor JJ. Dietary energy level affects adipose depot mass but does not impair in vitro subcutaneous adipose tissue response to short-term insulin and tumor necrosis factor-α challenge in nonlactating, nonpregnant Holstein cows. J Dairy Sci 2018; 101:10206-10219. [PMID: 30146294 DOI: 10.3168/jds.2018-14389] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 07/04/2018] [Indexed: 11/19/2022]
Abstract
We assessed effects of overfeeding energy to nonlactating and nonpregnant Holstein cows during a length of time similar to a typical dry period on body lipid storage and the abundance of genes related to insulin signaling, inflammation, and ubiquitination in subcutaneous adipose tissue (SAT) in vitro challenged with insulin and recombinant bovine tumor necrosis factor-α. Fourteen cows were randomly assigned to either a high-energy (OVE; net energy for lactation = 1.60 Mcal/kg of dry matter; n = 7) or control (CON; net energy for lactation = 1.30 Mcal/kg of dry matter; n = 7) diet for 6 wk. Immediately after slaughter, liver, kidneys, and mammary gland were separated and weighed. The adipose tissue mass in the omental, mesenteric, and perirenal depots was dissected and weighed. Subcutaneous adipose tissue was collected from the tail-head region and was used as follows: control, bovine insulin (INS) at 1 µmol/L, tumor necrosis factor-α at 5 ng/mL (TNF), and their combination. Despite a lack of difference in final body condition score, OVE cows had greater energy intake and were heavier than CON cows. Furthermore, overfeeding led to greater mass of mesenteric and perirenal adipose, liver, and mammary gland. Overall, SAT incubated with INS had an upregulation of insulin receptor (INSR), interleukin-10 (IL10), small ubiquitin-like modifier 3 (SUMO3), and ubiquitin conjugating enzyme E2I (UBC9), whereas TNF upregulated peroxisome proliferator-activated receptor gamma (PPARG), diacylglycerol O-acyltransferase 2 (DGAT2), interleukin-6 (IL6), nuclear factor kappa B subunit 1 (NFKB1), small ubiquitin-like modifier 2 (SUMO2), and UBC9. Regardless of in vitro treatment, feeding OVE upregulated PPARG, fatty acid synthase (FASN), and insulin induced gene 1 (INSIG1). Abundance of PPARG was greater in SAT of OVE cows cultured individually with INS and TNF. The interaction between diet and in vitro treatment revealed that sterol regulatory element binding transcription factor 1 (SREBF1) had greater abundance in SAT from the CON group in response to culture with INS, whereas SAT from OVE cows had greater SREBF1 abundance in response to culture with TNF. The mRNA abundance of IL6 and NFKB1 was greater in response to TNF treatment and overall in CON cows. Furthermore, SAT from these cows had greater IL10 abundance when cultured with INS and TNF. Overall, data highlighted that overfeeding energy increases adipose tissue mass in part by stimulating transcription of key genes associated with insulin signaling, adipogenesis, and lipogenesis. Because SAT thickness or mass was not measured, the lack of effect of overfeeding on body condition score limits its use to predict overall body lipid storage. An overt inflammatory response in SAT after a 6-wk period of over-consumption of energy could not be discerned.
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Affiliation(s)
- V Lopreiato
- Interdepartmental Services Centre of Veterinary for Human and Animal Health, Department of Health Science, Magna Græcia University, Catanzaro, 88100, Italy
| | - A Hosseini
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - F Rosa
- Dairy and Food Science Department, South Dakota State University, 1111 College Ave., 113H Alfred Dairy Science Hall, Brookings 57007
| | - Z Zhou
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - A Alharthi
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - E Trevisi
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, Via Emilia Parmense, 84, 29122 Piacenza, Italy
| | - J J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801.
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Arroyo J, Hosseini A, Zhou Z, Alharthi A, Trevisi E, Osorio J, Loor J. Reticulo-rumen mass, epithelium gene expression, and systemic biomarkers of metabolism and inflammation in Holstein dairy cows fed a high-energy diet. J Dairy Sci 2017; 100:9352-9360. [DOI: 10.3168/jds.2017-12866] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/03/2017] [Indexed: 01/04/2023]
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Abdelmegeid M, Vailati-Riboni M, Alharthi A, Batistel F, Loor J. Supplemental methionine, choline, or taurine alter in vitro gene network expression of polymorphonuclear leukocytes from neonatal Holstein calves. J Dairy Sci 2017; 100:3155-3165. [DOI: 10.3168/jds.2016-12025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/10/2016] [Indexed: 12/12/2022]
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