A survey of ACCase inhibitor resistant wild oat in a high risk township in Manitoba

1997 ◽  
Vol 77 (4) ◽  
pp. 703-708 ◽  
Author(s):  
Luc Bourgeois ◽  
Ian N. Morrison

A survey was conducted in a township near Treherne, Manitoba to determine the frequency of Group 1 resistant wild oat in 30 randomly selected cereal fields. On average, 61% of the 30 fields were sprayed annually with ACCase inhibitor (Group 1) herbicides from 1983 to 1993. Wild oat were sampled at 80-m intervals on a predefined grid pattern across whole fields. Wild oat densities were recorded and seeds were collected from 0.25 m−2 quadrats. Seeds were also collected from conspicuous wild oat patches occurring outside the spaced quadrats. Plants were determined to be susceptible or resistant to fenoxaprop-P and/or sethoxydim using a seed bioassay procedure. Results from the structured survey indicated that resistant wild oat occurred in nine fields. Densities in quadrats containing resistant wild oat were generally higher than in quadrats with susceptible wild oat. By combining the results of the structured survey with the patch collection, resistance was detected in 20 out of the 30 fields. While resistant weeds generally occurred in small patches, in two of the fields, resistant plants occurred over much larger areas. The evidence suggests that as many as two fields in three may harbour Group 1 resistant wild oat in high risk townships in Manitoba. Key words: Weed survey, resistance assessment, wild oat, ACCase inhibitors

1997 ◽  
Vol 77 (4) ◽  
pp. 709-715 ◽  
Author(s):  
Luc Bourgeois ◽  
Ian N. Morrison ◽  
David Kelner

In a previous study, 729 townships in Manitoba were differentiated as being at low, medium, or high risk of evolving wild oat resistant to Group 1 herbicides based on herbicide use histories from 1981 to 1993. In the present study, 16 townships representing the three risk categories were surveyed in 1994 in order to determine the percentage of resistant wild oat patches. As well, a questionnaire was mailed to farmers in these townships requesting information on practices and attitudes relating to herbicide resistance. The wild oat survey consisted of sampling seed from conspicuous wild oat patches visible from north-south roads in each township. A total of 533 samples were collected and screened with fenoxaprop-P and sethoxydim using a bioassay. An average of eight resistant wild oat patches was found in the high risk townships. This was significantly higher than in low and medium risk townships where an average of less than one resistant wild oat patch per township was detected. The attitude of producers towards herbicide resistance was similar in all risk categories. However, the number of respondents suspecting Group 1 resistance on their farms was related to risk categories with producers in high risk areas suspecting the most cases of resistance. Key words: Weed survey, resistance assessment, wild oat, ACCase inhibitors


1997 ◽  
Vol 77 (1) ◽  
pp. 173-179 ◽  
Author(s):  
Luc Bourgeois ◽  
Ian N. Morrison

Since 1976, seven acetyl coenzyme-A carboxylase (ACCase) inhibitors (referred to as Group 1 herbicides) have been registered in western Canada for wild oat (Avena fatua L.) and green foxtail (Setaria viridis L.) control. In 1990, Group 1 resistant wild oat populations were identified from fields in Manitoba which had been repeatedly sprayed with these products during the previous 10 yr. Since the occurrence of resistance is directly related to the frequency of herbicide use, the purpose of this study was to compile herbicide use histories on a province-wide basis using data included in the Manitoba Crop Insurance Corporation (MCIC) database. The database was used to determine the relative importance of Group 1 herbicide use in major crops compared with other products, and to identify individual townships at low, medium and high risk for developing Group 1 resistance. Low, medium and high risk townships were arbitrarily defined as those in which Group 1 products were used on less than 30%, on 30 to 50% and on more than 50% of the sprayed fields, respectively. From 1981 to 1993, Group 1 herbicide use increased from 15 to 50% of the sprayed area, and since 1990, these products have been used on one out of two sprayed fields on an annual basis, with the most intensive use in flax. In the early 1980s, fewer than 5% of the townships were at high risk. These were located near the towns of Swan River, Dauphin and Treherne, and the city of Winnipeg, which were the locations where Group 1 resistant wild oat and green foxtail were first identified. Between 1989 and 1993, more than 40% of the townships were considered to be at high risk. Should the trend toward increased use of Group 1 herbicides continue through the 1990s, the resistance problem will inevitably worsen. Key words: Herbicide use, selection, herbicide rotation


2016 ◽  
pp. 33-38
Author(s):  
Thi Ngoc Dung Thai ◽  
Thi Tan Nguyen

Background: Low back pain by osteoarthristis is one of the most common diseases in the world as well as in Vietnam, estimated 70-85% people in the world have low back pain sometime in their lives. Obiectives: To evaluate the effects of embedding therapy and electronic acupuncture combined with “Doc hoat tang ky sinh” remedy in the treatment of low back pain by spondylosis. Materials and methods: 72 patients diagnosed of low back pain by spondylosis, were examined and treated at Phu Yen Traditional Medicine Hospital, divided equally into 2 groups (group 1 and group 2). Results: In group 1: Effective treatment at good and fair good level accounted for 41.7% and 41.7%. In group 2: Good level occupied 33.3% and fair good level occupied 55.6%. Conclusion: The ratios of good and fair good in 2 groups were equal (p >0.05) Key words: Low back pain, spondylosis, embedding therapy, electronic acupuncture


1984 ◽  
Vol 64 (1) ◽  
pp. 39-43 ◽  
Author(s):  
L. E. JEREMIAH ◽  
G. M. WEISS

A total of 130 barrows and 113 gilts were slaughtered over a range of liveweights from 65.6 to 143.9 kg. These animals were randomly assigned to six different liveweight groups (group 1, less than 79.5 kg; group 2, 79.5 through 93.1 kg; group 3, 93.2 through 106.7 kg; group 4, 106.8 through 120.4 kg; group 5, 120.5 through 134.0 kg; and group 6, 134.1 kg and over) and utilized to evaluate the effects of slaughter weight and sex on palatability and cooking properties. The composite results indicated that the slaughter weight of both barrows and gilts can, from a practical standpoint, be increased to take advantage of potential economic advantages without meaningfully altering cooking losses or palatability attributes. Key words: Pork, slaughter weight, sex, palatability, cooking losses


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Chan-Hyuk Lee ◽  
Hyunjin Ryu ◽  
Curie Ahn ◽  
Hyun-Seung Kang ◽  
Seul-Ki Jeong ◽  
...  

Background: Autosomal dominant polycystic kidney disease (ADPKD) is an autosomal dominant genetic disorder in which cysts of various sizes invade the renal parenchyma. Intracranial aneurysms occur in 8-12% of ADPKD patients, which is approximately 3-4 times the rate of the healthy population. However, research on factors related to aneurysm incidence and rupture in patients with ADPKD is insufficient. Objective: We analyzed the factors associated with risk of aneurysm incidence and phenotype in ADPKD patients. Methods: From the ADPKD registry in the tertiary hospital, we screened patients with cerebral angiography enrolled between January 2007 and May 2017. Then, 926 enrolled patients were classified into three groups according to the intracranial aneurysm incidence and phenotype (multiplicity, size, location): no intracranial aneurysm (Group 1); low-risk intracranial aneurysm (Group 2); high-risk intracranial aneurysm (Group 3). We analyzed the difference of patients’ demographic factors, cardiovascular risk factors, laboratory data, echocardiographic data, and imaging data between groups. Results: The prevalence [C1] of intracranial aneurysm in ADPKD patients was 16.0%. Aneury[C2] sm-positive group (Group 2 and 3, n=148) was significantly older (p<0.001) and had a greater proportion of females (p<0.001) than patients in the aneurysm-negative group (Group 1, n=778). Compared to Group 1, Group 3 was significantly associated with age (odds ratio (OR) 1.027, p=0.007), female sex (OR 3.184, p<0.001), dyslipidemia (OR 0.460, P=0.001), basilar artery dolichoectasia (OR 8.443, p=0.016), and mitral inflow deceleration time (OR 1.005, p=0.039). Conclusion: Factors associated with a high-risk aneurysms were age, sex, dolichoectasia, dyslipidemia, and mitral inflow deceleration time in ADPKD patients. Identification of these factors would help detect high risk aneurysms and manage the aneurysms in ADPKD patients.


2018 ◽  
Vol 26 (4) ◽  
pp. 411-419 ◽  
Author(s):  
Victoria Tea ◽  
Marc Bonaca ◽  
Chekrallah Chamandi ◽  
Marie-Christine Iliou ◽  
Thibaut Lhermusier ◽  
...  

Background Full secondary prevention medication regimen is often under-prescribed after acute myocardial infarction. Design The purpose of this study was to analyse the relationship between prescription of appropriate secondary prevention treatment at discharge and long-term clinical outcomes according to risk level defined by the Thrombolysis In Myocardial Infarction (TIMI) Risk Score for Secondary Prevention (TRS-2P) after acute myocardial infarction. Methods We used data from the 2010 French Registry of Acute ST-Elevation or non-ST-elevation Myocardial Infarction (FAST-MI) registry, including 4169 consecutive acute myocardial infarction patients admitted to cardiac intensive care units in France. Level of risk was stratified in three groups using the TRS-2P score: group 1 (low-risk; TRS-2P=0/1); group 2 (intermediate-risk; TRS-2P=2); and group 3 (high-risk; TRS-2P≥3). Appropriate secondary prevention treatment was defined according to the latest guidelines (dual antiplatelet therapy and moderate/high dose statins for all; new-P2Y12 inhibitors, angiotensin-converting-enzyme inhibitor/angiotensin-receptor-blockers and beta-blockers as indicated). Results Prevalence of groups 1, 2 and 3 was 46%, 25% and 29% respectively. Appropriate secondary prevention treatment at discharge was used in 39.5%, 37% and 28% of each group, respectively. After multivariate adjustment, evidence-based treatments at discharge were associated with lower rates of major adverse cardiovascular events (death, re-myocardial infarction or stroke) at five years especially in high-risk patients: hazard ratio = 0.82 (95% confidence interval: 0.59–1.12, p = 0.21) in group 1, 0.74 (0.54–1.01; p = 0.06) in group 2, and 0.64 (0.52–0.79, p < 0.001) in group 3. Conclusions Use of appropriate secondary prevention treatment at discharge was inversely correlated with patient risk. The increased hazard related to lack of prescription of recommended medications was much larger in high-risk patients. Specific efforts should be directed at better prescription of recommended treatment, particularly in high-risk patients.


2019 ◽  
Vol 6 (7) ◽  
pp. 2300
Author(s):  
Hosam F. Abdelhameed ◽  
Samir A. Abdelmageed

Background: One of the major morbidity after abdominal surgery is incisional hernia. In high risk patients its incidence reaches 11-20% despite various optimal closure techniques for midline laparotomy. Our aim is to evaluate the efficacy of onlay mesh placement in reducing the incidence of incisional hernia in those high risk patients.Methods: A total of 65 high risk patients suspected to develop post-operative incisional hernia underwent midline abdominal laparotomies. Patients were divided into two groups; group1 (30 patients) for whom the incision was closed by conventional method and group2 (35 patients) for whom the incision was closed with reinforcement by onlay polypropylene mesh. The primary end point was the occurrence of incisional hernia while the secondary end point was post-operative complications including subcutaneous seroma, chronic wound pain, and surgical site infection (SSI). Patients were followed up for two years.Results: The base line characteristics of the two groups were similar. The incidence of incisional hernia is significantly reduced 1/35 (2.8%) in group 2 while it was 6/30 (20%) in group 1. As regard seroma and chronic wound pain they increased in (group2) 6/35 (17.14%) and 5/35(14.28%) respectively compared to (group 1) which was 4/30 (13.33%) and 2/30 (6.66%). SSI occurred in 1/35 (2.85%) in group 2 and in 1/30 (3.33%) in group 1.Conclusions: Prophylactic onlay mesh reinforcement of the midline laparotomy for high risk patients can be used safely and markedly reduces the incidence of incisional hernia with little morbidity.


2017 ◽  
Vol 3 (2) ◽  
pp. 47
Author(s):  
Maria Magdalena Setyaningsih ◽  
Wisoedhanie Widi Anugrahanti

Delayed cord clamping leads to the increased level of haematocrite and victocytes which is high risk of hyperbilirubinemia . This study is to determine if there is an effect of timing of cord clamping relating to the incidence of hyperbilirubinemia on newborn, and to create formulating the standard procedures in maternal interventions related to the timing of cord clamping, another objective is  preventing  interventions of its occurrence when the clamping is performed immediately after birth. Crossectional study was applied design of the research. Population and samples included infants spontaneus by healthy primigravidas.Two trials were included, 20 participants of each received interventions of cord clamping more than equalivalent 1 minute and less than 1 minute followed by bilirubin assessment 48 hours after birth, and analysed by using Linier Regression. There is no significant effect of timing of cord clamping on newborn with regard to hiperbilirubinemia, because the effect of the clamping on bilirubin level reaches up to 68.2%, while the other 31.8% of the varying levels are affected by other factors. There is a need to conduct other relevant studies aimed to prevent hyperbilirubinemia starting from antenatal to postnatal stage.; Key Words: Jaundice, Newborn, Hyperbilirubinemia, Time of Clamping, Primigravidas


2021 ◽  
Vol 11 (8) ◽  
pp. 67-78
Author(s):  
Swathi. M. Somayaji

Diabetes mellitus is rising to an alarming epidemic level. Pre-diabetes (intermediate hyperglycemia) is a high-risk state for diabetes that is defined by glycemic variables that are higher than normal, but lower than diabetes thresholds. It stems up in persons who are physically inactive, obese, takes more kaphakara medokara abhishyandi ahara. Diabetes if not treated can cause a severe burden on society. The rising prevalence is closely associated with urbanization because of increasing obesity and inclination towards fast food. For pre-diabetic individuals, lifestyle modification is the cornerstone of diabetes prevention. Physical activity and decreased calorie intake can reduce the occurrence of Diabetes. So an attempt was made to find out the efficacy of Amalaki swarasa and haridra churna with madhu in pre-diabetes (borderline diabetes) Key words: Pre-Diabetes, Amalaki, Haridra, Madhu, Borderline Diabetes Mellitus.


Perfusion ◽  
2006 ◽  
Vol 21 (6) ◽  
pp. 329-342 ◽  
Author(s):  
Serdar Gunaydin ◽  
Kevin McCusker ◽  
Venkataramana Vijay ◽  
Selim Isbir ◽  
Tamer Sari ◽  
...  

Objectives: The relative benefits of strategic leukofiltration on polymer-coated and low-dose heparin protocol on heparin-coated circuits were studied across EuroSCORE patient risk strata for three different cohorts. Methods: In a prospective, randomized study, 270 patients undergoing coronary artery bypass grafting were allocated into three groups (n = 90): Group 1 -polymethoxyethylacrylate-coated circuits+leukocyte filters; Group 2 -polypeptide-based heparin-bonded circuits with reduced heparinization; and Group 3 -Control: uncoated circuits. Each group was further divided into three subgroups (n = 30), with respect to low- (EuroSCORE 0-2), medium- (3-5), and high- (6+) risk patients. Blood samples were collected at T1: following induction of anesthesia; T2: following heparin administration; T3: 15 min after CPB; T4: before cessation of CPB; T5: 15 min after protamine reversal; and T6: ICU. Results: In high-risk cohorts, leukocyte counts demonstrated significant differences at T4 and T5 in Group 1, and at T4 in Group 2. Platelet counts were preserved significantly better at T4 and T5 in both groups (p <0.05 versus control). Serum IL-2 and C3a levels were significantly lower at T3, T4 and T5 in Group 1, and T4 and T5 in Group 2 (p <0.05). Postoperative bleeding, respiratory support time and incidence of atrial fibrillation were lower in the study groups versus control. Cell counts on filter mesh and heparin-coated fibers/circuits were significantly higher in the high-risk cohorts versus uncoated fibers. Phagocytic capacity increased on filter mesh, especially in high-risk specimens. SEM evaluation demonstrated better preserved coated circuits. Conclusion: Leukofiltration and coating reduced platelet adhesion, protein adsorption, atrial fibrillation and reduced heparinization acted via modulation of systemic inflammatory response in high-risk groups.


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