scholarly journals Plumage Response of Young Turkeys to Diets with Increased Methionine to Lysine Ratios at Three Dietary Arginine Levels

Animals ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 172
Author(s):  
Emilia Mróz ◽  
Jan Jankowski ◽  
Marek Skowroński ◽  
Dariusz Mikulski

A 2 × 3 factorial experiment was conducted to evaluate the effects of two dietary methionine levels (Met; 30% and 45% of Lys content) and three arginine levels (Arg; 90%, 100%, and 110% of Lys content) on plumage development in 4- and 16-week-old female turkeys. One-day-old turkey poults were assigned to six groups (eight replicate pens per group and 18 birds per pen) and fed experimental diets containing 1.6%, 1.5%, 1.3%, and 1.0% of Lys in four successive four-week periods. After weeks 4 and 16 of feeding, eight turkeys per group were selected for plumage evaluation. Feathers were collected from the outer side of one thigh and from an area of 4 cm2 in the interscapular region. Plumage was evaluated based on an established pattern of five feather development stages in turkeys, from stage I (pinfeathers covered in sheaths) to stage V (mature feathers). An increase in the Met inclusion rate to 45% of Lys content had no significant effect on feather growth in 4-week-old turkeys, but it accelerated the development of feathers in 16-week-old birds. A lower percentage of stage II (p = 0.035), stage III (p = 0.019), and stage IV (p = 0.003) immature feathers, and a higher percentage of stage V (mature) feathers (p = 0.001) were observed. Methionine exerted a greater effect on the development of thigh feathers (p = 0.001) than interscapular feathers (p = 0.074). Unlike Met, different Arg concentrations had no influence on plumage development in turkeys. Overall, the present results indicate that supplemental Met has a potential for accelerating feather development in 16-week-old turkeys via an increased supply of total sulfur amino acids.

2020 ◽  
Vol 185 (11-12) ◽  
pp. e2044-e2048
Author(s):  
Joel A Nations ◽  
Derek W Brown ◽  
Stephanie Shao ◽  
Craig D Shriver ◽  
Kangmin Zhu

Abstract Introduction We compared the stage at diagnosis for non-small cell lung cancer (NSCLC) patients in the military healthcare system (MHS) and the general public to assess differences between these two groups as well as to assess the trends in stage at diagnosis in the recent past. Method This study was based on the non-identifiable data from the U.S. Department of Defense Automated Central Tumor Registry (ACTUR) and the Surveillance, Epidemiology, and End Results (SEER) program of the National Cancer Institute. Patients diagnosed with NSCLC between 1989 and 2012 were included. The distributions of tumor stage at diagnosis and trends in tumor stage were compared between the two populations. Results The cohorts were predominately male in both ACTUR (65.3%) and SEER (55.1%) and white patients accounted for greater than 80% of patients in both ACTUR and SEER. Among 21,031 patients in ACTUR and 773,356 patients in SEER, stage IV lung cancers predominated (ACTUR 33.6%, SEER 40.5%) followed by stage III (ACTUR 26.1%, SEER 26.4%) and stage I (ACTUR 24.7%, SEER 20.6%). Notable differences between the two populations were the higher percentage of stage I and lower percentage of stage IV, along with a lower rate of unknown stage patients after 2004, in ACTUR than SEER. Between 1989 and 2012, the percentage of stage IV disease increased in ACTUR and SEER coincident with a decrease in unknown stage disease. Conclusions The majority of NSCLC patients in the MHS and general population are diagnosed with stage IV NSCLC and the percentage is increasing. Compared to the general population, NSCLC patients in the MHS have a higher percentage of stage I, a lower percentage of stage IV, and of unknown stage cancer. Universal care along with more rigorous staging across the MHS may play a role in these findings.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 6039-6039
Author(s):  
Fulvia Pedani ◽  
Mario Airoldi ◽  
Massimiliano Garzaro ◽  
Riccardo Torta ◽  
Luca Raimondo ◽  
...  

6039 Background: The treatment of oropharyngeal squamous cell carcinomas (OSCC) may heavily affect patient’s quality of life (QoL). Aim of our study was the evaluation of the impact of different treatments on physical and psychological functioning and on QoL of patients affected by stage III-IV disease. Methods: The enrolled sample was composed by 94 OSCC patients divided into 3 subgroups based on treatment modalities: surgery + adjuvant radiotherapy (S + RT: 30 patients), exclusive concomitant chemo-radiotherapy (CT + RT: 30 patients) and exclusive chemotherapy (CT) in 34 patients not suitable for surgery and/or radiotherapy. Psycho-oncological assessment included: Hospital Anxiety Depression Scale (HADS), Montgomery-Asberg Depression Scale (MADRS), Mini-Mental Adjustment to Cancer scale (MINI-MAC), EORTC QLQ C-30 questionnaire with the specific module Head and Neck 35 (H&N35). Results: The 60 patients primarily treated with S + RT or CT + RT presented superimposeable clinical and tumour characteristics while those treated with exclusive CT were affected by stage IV disease and in the 90% of cases underwent to previous treatment exclusive or combined treatment such as surgery, radiotherapy and chemotherapy. In the following table, data about physical and psychological functioning and on QoL of the 3 subgroups of patients are summarized. Conclusions: In stage III-IV OSCC treatments have a strong influence on QoL and coping styles. Patients treated with CT + RT were characterized by a lower percentage of self-reported anxiety and depression and higher EORTC Global QoL score. More than one third of patients treated with S + RT had overt symptoms of anxiety and depression. Stage IV patients treated with palliative CT had elevated level of anxiety, depression and low quality of life. Auto-evaluation is less effective in depression assessment. The role of concomitant psychological supportive care should be evaluated in these patients treated with different approaches. [Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e18674-e18674
Author(s):  
Natalia Vidal ◽  
Juan Gomez ◽  
Isabel Galante ◽  
Jose Luis Senovilla ◽  
Jose-Luis Gonzalez-Larriba ◽  
...  

e18674 Background: In 2019, we used the American Society of Clinical Oncology (ASCO) Quality Training Program (QTP) as an instrument to improve the inclusion rate in clinical trials (CTs) for bladder cancer patients from 24% in 2018 to 43,75% in 2019. CTs play an important role in developing new treatments, expanding or refining treatments that are already available, and/or identifying behavioral changes that can prolong or improve the lives of subjects. Therefore, we believe it is important for patients and for society to maintain the inclusion rate in clinical trials despite COVID-19 pandemic. Methods: We collected the number of bladder cancer patients evaluated for the first time in the Oncology department, the number of patients who were offered a clinical trial, the screen failures and the number of patients enrolled in CTs. Results: In 2019, we were able to increase the enrollment rate in CTs for bladder cancer patients to from 24% to 43,75% thanks to the ASCO-QTP. With this program we created a list of measures and identified the ones that would have a greater impact. The one that seems to have had the highest impact is the diffusion of CTs in the Investigation Unit and the Genitourinary (GU) board. In 2020, thanks to this measure and despite the COVID-19 pandemic, we were able to maintain a 40,81% enrollment rate. When analyzing the patients evaluated for the first time in the Oncology department, 48 in 2019 and 49 in 2020, there were some interesting differences. In 2020, 42,86% had stage IV disease with respect to 39,6% in 2019, and only 22,44% had non-muscle invasive disease (NMIBC) versus 33,33% in 2019. However, thanks to the diffusion of CTs in the Investigation Unit and in the GU-board, which translates in an early derivation of patients to Medical Oncology and an increase in the number of available CTs, we were able to offer a CT to 73,5% of patients in 2020 against 60,4% in 2019. Although there was an increase of screen failures in 2020 (32,65% vs. 16,66%), 50% of them were due to the absence of a biomarker in a biomarker driven CT, with respect to 25% in 2019. Conclusions: Using ASCO-QTP as an instrument, we identified the importance of the diffusion of CTs and the close collaboration between departments. Maintaining these measures, we were able to uphold the inclusion rate in CTs for bladder cancer patients in 40,81% despite the later diagnosis of patients due to COVID-19 pandemic.


Author(s):  
R. C. Moretz ◽  
D. F. Parsons

Short lifetime or total absence of electron diffraction of ordered biological specimens is an indication that the specimen undergoes extensive molecular structural damage in the electron microscope. The specimen damage is due to the interaction of the electron beam (40-100 kV) with the specimen and the total removal of water from the structure by vacuum drying. The lower percentage of inelastic scattering at 1 MeV makes it possible to minimize the beam damage to the specimen. The elimination of vacuum drying by modification of the electron microscope is expected to allow more meaningful investigations of biological specimens at 100 kV until 1 MeV electron microscopes become more readily available. One modification, two-film microchambers, has been explored for both biological and non-biological studies.


2006 ◽  
Vol 37 (5) ◽  
pp. 1-8
Author(s):  
JANE SALODOF MACNEIL
Keyword(s):  

2011 ◽  
Vol 44 (10) ◽  
pp. 45
Author(s):  
DR. SEEMA KHAN ◽  
DR. BLAKE CADY

2018 ◽  
Vol 32 (1) ◽  
pp. 30-42 ◽  
Author(s):  
Claudia Traunmüller ◽  
Kerstin Gaisbachgrabner ◽  
Helmut Karl Lackner ◽  
Andreas R. Schwerdtfeger

Abstract. In the present paper we investigate whether patients with a clinical diagnosis of burnout show physiological signs of burden across multiple physiological systems referred to as allostatic load (AL). Measures of the sympathetic-adrenergic-medullary (SAM) axis and the hypothalamic-pituitary-adrenal (HPA) axis were assessed. We examined patients who had been diagnosed with burnout by their physicians (n = 32) and were also identified as burnout patients based on their score in the Maslach Burnout Inventory-General Survey (MBI-GS) and compared them with a nonclinical control group (n = 19) with regard to indicators of allostatic load (i.e., ambulatory ECG, nocturnal urinary catecholamines, salivary morning cortisol secretion, blood pressure, and waist-to-hip ratio [WHR]). Contrary to expectations, a higher AL index suggesting elevated load in several of the parameters of the HPA and SAM axes was found in the control group but not in the burnout group. The control group showed higher norepinephrine values, higher blood pressure, higher WHR, higher sympathovagal balance, and lower percentage of cortisol increase within the first hour after awakening as compared to the patient group. Burnout was not associated with AL. Results seem to indicate a discrepancy between self-reported burnout symptoms and psychobiological load.


Sign in / Sign up

Export Citation Format

Share Document