Recovery of ectomycorrhizal fungi after exposure to subfreezing temperatures

1979 ◽  
Vol 57 (17) ◽  
pp. 1845-1848 ◽  
Author(s):  
R. C. France ◽  
M. L. Cline ◽  
C. P. P. Reid
Keyword(s):  
Growth Rate ◽  
Ectomycorrhizal Fungi ◽  
Recovery Time ◽  
Growth Form ◽  
Rapid Recovery ◽  
Active Growth ◽  
Growth Recovery ◽  
Recovery Times

Seventy-three isolates of eighteen ectomycorrhizal fungi were examined for their growth recovery after a 48-h exposure to −10 °C. Survival of all isolates was 97%. Recovery time to active growth varied between species and within species. Of surviving isolates, 72% initiated growth in less than 2 weeks after thawing. Growth rate was not affected for isolates exhibiting rapid recovery but was significantly lowered for isolates with recovery times of more than 5 weeks. Variation in growth form occurred with some species of Suillus and Xerocomus.

Using Acute Performance on a Comprehensive Neurocognitive, Vestibular, and Ocular Motor Assessment Battery to Predict Recovery Duration After Sport-Related Concussions

2017 ◽  
Vol 45 (5) ◽  
pp. 1187-1194 ◽  
Author(s):  
Alicia M. Sufrinko ◽  
Gregory F. Marchetti ◽  
Paul E. Cohen ◽  
R.J. Elbin ◽  
Valentina Re ◽  
...  
Keyword(s):  
Recovery Time ◽  
Symptom Assessment ◽  
Cognitive Testing ◽  
Ocular Motor ◽  
Motor Speed ◽  
Multinomial Regression ◽  
Symptom Scale ◽  
Level Of Evidence ◽  
Recovery Times ◽  
Visual Motor

Background: A sport-related concussion (SRC) is a heterogeneous injury that requires a multifaceted and comprehensive approach for diagnosis and management, including symptom reports, vestibular/ocular motor assessments, and neurocognitive testing. Purpose: To determine which acute (eg, within 7 days) vestibular, ocular motor, neurocognitive, and symptom impairments predict the duration of recovery after an SRC. Study Design: Cohort study (prognosis); Level of evidence, 2. Methods: Sixty-nine patients with a mean age of 15.3 ± 1.9 years completed a neurocognitive, vestibular/ocular motor, and symptom assessment within 7 days of a diagnosed concussion. Patients were grouped by recovery time: ≤14 days (n = 27, 39.1%), 15-29 days (n = 25, 36.2%), and 30-90 days (n = 17, 24.6%). Multinomial regression was used to identify the best subset of predictors associated with prolonged recovery relative to ≤14 days. Results: Acute visual motor speed and cognitive-migraine-fatigue symptoms were associated with an increased likelihood of recovery times of 30-90 days and 15-29 days relative to a recovery time of ≤14 days. A model with visual motor speed and cognitive-migraine-fatigue symptoms within the first 7 days of an SRC was 87% accurate at identifying patients with a recovery time of 30-90 days. Conclusion: The current study identified cognitive-migraine-fatigue symptoms and visual motor speed as the most robust predictors of protracted recovery after an SRC according to the Post-concussion Symptom Scale, Immediate Post-concussion Assessment and Cognitive Testing, and Vestibular/Ocular Motor Screening (VOMS). While VOMS components were sensitive in identifying a concussion, they were not robust predictors for recovery. Clinicians may consider particular patterns of performance on clinical measures when providing treatment recommendations and discussing anticipated recovery with patients.

scholarly journals THE RELATIONSHIP BETWEEN MENTAL HEALTH HISTORY AND SYMPTOMS, SEX, AND RECOVERY TIME IN A CONCUSSED PEDIATRIC POPULATION

2020 ◽  
Vol 8 (4_suppl3) ◽  
pp. 2325967120S0023
Author(s):  
Richard Cameron Allred ◽  
Sara Stremlau ◽  
Richard Gerkin ◽  
Steven Erickson ◽  
Jamie Pardini
Keyword(s):  
Mental Health ◽  
Mental Illness ◽  
Recovery Time ◽  
Pediatric Population ◽  
Return To Play ◽  
Depression Symptoms ◽  
Health History ◽  
Mental Health History ◽  
Recovery Times ◽  
History Of

Background: The Generalized Anxiety Disorder scale (GAD-7) and Patient Health Questionnaire (PHQ-9) are mental health screening instruments that assess symptoms of depression and anxiety. Studies of patients with concussion suggest that history of mental illness is associated with prolonged recovery; however, little research has examined the value of these tools in a concussed pediatric population (Iverson et al., 2017). Hypothesis/Purpose: The purpose of this study was to explore the relation between anxiety and depression symptoms, mental illness history, sex, and time to recover in a concussed pediatric population. We hypothesized that mental health symptoms and history, and female sex would predict longer recoveries in the pediatric population. Methods: IRB-approved retrospective chart review was used for data collection. Demographics, self-reported mental health history, GAD-7, and PHQ-9 scores were acquired for 250 adolescents ages 12-18 (45.2% female) who presented to an outpatient concussion clinic for their initial visit. Days to recover was imputed for all patients who had been discharged by clinic physicians based on international return to play standards. Results: Mann-Whitney U tests were used for analysis of this nonnormally distributed data. Males were found to recover more quickly than females (female median = 15 days, IQR 7-27; male median = 12 days, IQR 6-23; p=.013). No significant differences were observed in days to clearance based on reported history of mental health disorder (p=.066). Individuals who scored above cutoff (see Kroenke et al., 2001; Spitzer et al., 2006) on the GAD-7 (below cutoff median = 12.00 days; above cutoff median = 21.00 days) and PHQ-9 (below cutoff median = 23.5 days; above cutoff median = 57.00 days) required longer recovery times (p <.001). Conclusion: We found longer recovery times in females versus males, and in those whose scores fell above cutoff for the PHQ-9 and GAD-7 at their initial clinic visit. Although a trend existed, there were no significant differences in recovery time for those who reported a mental health history compared to those who did not. Results suggest that the GAD-7 and PHQ-9 may be useful screening measures in a concussion clinic and may provide additional insight into potential recovery times for pediatric patients.

scholarly journals Comparing Acute Symptoms and Recovery Time Following Sports-Related Concussion Across School Age Groups

2019 ◽  
Vol 34 (5) ◽  
pp. 774-774
Author(s):  
T Tarkenton ◽  
C Presley ◽  
N Didehbani ◽  
C H Silver ◽  
C M Cullum
Keyword(s):  
High School ◽  
Recovery Time ◽  
Age Groups ◽  
School Age ◽  
Early Elementary ◽  
General Anxiety Disorder ◽  
General Anxiety ◽  
The North ◽  
Severity Scores ◽  
Recovery Times

Abstract Purpose Despite considerable research on pediatric sports-related concussion (SRC), few studies have analyzed groups from school-age through young adulthood. This study aimed to examine acute symptoms (i.e., emotional, physical, and cognitive) and recovery times across this age range. Methods Participants age 5–25 with SRC (n=611) presented to concussion clinics in the North Texas Concussion Registry within 2 weeks of injury. Subjects were stratified into 4 age groups: early elementary (age 5-9; n=19), late elementary (10–13; n=181), high school (14-17; n=384), and college (18-25; n=39). The Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 Item Scale (GAD-7), and concussion symptom log (Sx log), were administered. ANOVA was used to compare symptom scores and recovery times across groups. Results Differences were found on PHQ-9 scores (p=.05), with the early elementary and high school groups reporting significantly higher levels of depressive symptoms than the late elementary and college groups. No differences were seen on GAD-7 scores. Differences in Sx log severity scores were nonsignificant (p=.09), although scores increased with age (early: M=21.4, late=25.7, high school=30.0, college=35.5). Lastly, recovery time differed across groups (p=.008), with early elementary participants having the longest recovery (M=8.3 days) and the college group having the shortest (M=5.1 days). Conclusion Older age groups reported higher levels of acute post-concussion symptoms and more rapid recovery compared to younger age groups, suggesting that symptomatology and recovery time vary developmentally and the effects of age warrant consideration in young athletes.

scholarly journals 4278 Recovery Time is Exaggerated in Individuals with Degenerative Cervical Myelopathy Following Standing Lateral Waist Pulls

2020 ◽  
Vol 4 (s1) ◽  
pp. 101-101
Author(s):  
Timothy Boerger ◽  
Learon McGinn ◽  
Marisa Clare ◽  
Marjorie Wang ◽  
Brian D Schmit ◽  
...  
Keyword(s):  
Cervical Myelopathy ◽  
Repeated Measures ◽  
Recovery Time ◽  
Center Of Pressure ◽  
Significant Group ◽  
Absolute Value ◽  
Recovery Times ◽  
Study Population ◽  
Degenerative Cervical Myelopathy ◽  
Response Timing

OBJECTIVES/GOALS: The aim of this study was to quantify balance impairments in stance in individuals with degenerative cervical myelopathy (IwDCM) in response to external perturbations. IwDCM have damage to their spinal cord due to degeneration of the cervical vertebral column, but little is known about balance. METHODS/STUDY POPULATION: Recovery time following a perturbation may be an important measure of balance. Changes in recovery time were measured in 7 IwDCM (2m, 58.59±15.00y) and 6 controls without DCM (2m, 56.91±11.04y) as they stood on an instrumented treadmill and received cued (predictable) and uncued (unpredictable) lateral pulls to the waist at 12% (high) and 6% (low) pull magnitudes. Individuals stood with feet together, shoulder width, and wide. Recovery time was defined as the time following pull onset when the absolute value of the center of pressure velocity returned to <1x baseline standard deviation. Repeated measures ANOVA was performed on recovery time. RESULTS/ANTICIPATED RESULTS: We anticipate that feet together standing, unpredictable, higher magnitude perturbations will be most challenging evidenced by longer recovery times. For waist pull recovery time, there was a trend for a Group x Predictability x Magnitude x Stance Width interaction (p = 0.1) which we anticipate being greater with additional participants. There were significant Group x Predictability x Stance Width (p = 0.01) and Group x Magnitude x Predictability (p = 0.01) interactions. IwDCM had exaggerated recovery times in narrow and wide stances with unpredictable pulls. IwDCM recovered more slowly in response to unpredictable higher magnitude pulls. DISCUSSION/SIGNIFICANCE OF IMPACT: Balance responses in IwDCM are most impaired in narrow stances and when perturbations are unpredictable. Rehabilitation should focus on shortening latency of response timing and increasing power utilization during balance response to promote quicker recovery.

Functional origin of rate-induced changes in atrioventricular nodal conduction time of premature beats in the rabbit

1987 ◽  
Vol 65 (11) ◽  
pp. 2329-2337 ◽  
Author(s):  
Jacques Billette ◽  
Marie St-Vincent
Keyword(s):  
Recovery Time ◽  
Rabbit Heart ◽  
Inhibitory Effect ◽  
Facilitatory Effect ◽  
Conduction Time ◽  
Recovery Times ◽  
Atrioventricular Nodal Conduction ◽  
Premature Beats ◽  
Induced Changes ◽  
Nodal Properties

The characteristics and origin of the rate-induced changes in atrioventricular nodal conduction time of premature beats (A2H2 intervals) were studied in isolated rabbit heart preparations. Increasing the basic driving rate during a periodic premature stimulation prolonged (a net inhibitory effect) and shortened (a net facilitatory effect) significantly (p < 0.01, n = 17) the A2H2 intervals associated with long and short recovery times (H1A2 intervals), respectively. The origin of these responses was sought for by analyzing interactions between facilitation and fatigue. When the fatigue developed at a fast basic rate was estimated from changes in conduction time of basic beats and subtracted from the corresponding A2H2 intervals, the calculated A2H2 intervals showed enhanced facilitation but no fatigue. When independently obtained fatigue and facilitation effects were added to the control A2H2 intervals for corresponding H1A2 intervals, resulting A2H2 intervals correlated strongly with the ones observed at the equivalent fast basic rate (r = 0.99, p < 0.001). Moreover, changes in the A2H2 intervals of premature beats tested with constant coupling intervals during 5-min fast rates were biphasic, confirming the overlapping and competition between facilitation and fatigue effects. Hence, rate-induced deviations of premature nodal conduction time from that predicted by changes in recovery time are consistent and result from the interaction between the overlapping effects produced by two independent, antagonist, and dynamically distinct nodal properties (facilitation and fatigue).

The Effect of Recovery Time on Strength Performance Following a High-Intensity Bench Press Workout in Males and Females

2010 ◽  
Vol 5 (2) ◽  
pp. 184-196 ◽  
Author(s):  
Lawrence W. Judge ◽  
Jeanmarie R. Burke
Keyword(s):  
Resistance Training ◽  
Training Program ◽  
Recovery Time ◽  
Bench Press ◽  
Recovery Period ◽  
Strength Development ◽  
Resistance Training Program ◽  
Strength Performance ◽  
Repetition Maximum ◽  
Recovery Times

Purpose:To determine the effects of training sessions, involving high-resistance, low-repetition bench press exercise, on strength recovery patterns, as a function of gender and training background.Methods:The subjects were 12 athletes (6 males and 6 females) and age-matched college students of both genders (4 males and 4 females). The subjects completed a 3-wk resistance training program involving a bench press exercise, 3 d/wk, to become familiar with the testing procedure. After the completion of the resistance training program, the subjects, on three consecutive weeks, participated in two testing sessions per week, baseline session and recovery session. During the testing sessions, subjects performed fve sets of the bench press exercise at 50% to 100% of perceived fve repetition maximum (5-RM). Following the weekly baseline sessions, subjects rested during a 4-, 24-, or 48-h recovery period. Strength measurements were estimates of one repetition maximum (1-RM), using equivalent percentages for the number of repetitions completed by the subject at the perceived 5-RM effort of the bench press exercise.Results:The full-factorial ANOVA model revealed a Gender by Recovery Period by Testing Session interaction effect, F(2, 32) = 10.65; P < .05. Among male subjects, decreases in estimated 1-RM were detected at the 4- and 24-h recovery times. There were no differences in muscle strength among the female subjects, regardless of recovery time.Conclusions:For bench press exercises, using different recovery times of 48 h for males and 4 h for females may optimize strength development as a function of gender.

Count Recovery in AML Patients Achieving a Complete Response.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 2062-2062 ◽  
Author(s):  
Steven Lawrence Rosinski ◽  
Farhad Ravandi ◽  
Stefan Faderl ◽  
Guillermo Garcia-Manero ◽  
Sherry Pierce ◽  
...  
Keyword(s):  
Recovery Time ◽  
De Novo ◽  
Conflicts Of Interest ◽  
Complete Response ◽  
Platelet Recovery ◽  
Neutrophil Recovery ◽  
Secondary Aml ◽  
Recovery Times ◽  
Md Anderson ◽  
Count Recovery

Abstract Abstract 2062 Poster Board II-39 AML is typically defined as “de novo” or “secondary”, the latter referring to patients diagnosed only after persistent blood count abnormalities (AHD) or after prior “chemotherapy” (PCT) for other illnesses. Patients with secondary AML may have a different bone marrow microenvironment leading to prolonged neutrophil and platelet recovery times following induction chemotherapy. Accordingly, we compared time from start of chemotherapy to neutrophil recovery (>1,000/μl) and platelet recovery (>100,000/μl) in 424 patients who achieved a complete response (CR) following treatment with ara-C-containing induction therapy at MD Anderson Hospital from 1995 to 2008. We divided the 424 patients as follows: (1) no AHD, no PCT (236 patients); (2) AHD, no PCT (131 patients); (3) PCT, no AHD (28 patients); and (4) AHD and PCT (29 patients). Because time to recovery may also be influenced by cytogenetics and age we subdivided patients in each of the four groups according to age (< vs. ≥ 60) and cytogenetics (normal vs. complex or -5/-7). Despite very differing CR rates, time to neutrophil recovery in patients achieving CR while statistically longer in PCT patients (p=0.05) was from a medical standpoint essentially uninfluenced by AHD and PCT status (table, median delays 2 days with PCT). Platelet recovery was affected by such status (p<0.001) being delayed by a median of 6-8 days in patients who had received PCT. Age had no effect on time to neutrophil (p=0.42) or platelet (p=0.23) recovery, while complex or -5/-7 cytogenetics had a statistically significant (p=0.002 neutrophils, 0.009 platelets) but medically insignificant (median delays of 2 days) effect on recovery time. There was no interaction between age or cytogenetics and AHD or PCT status. A similar analysis in patients who do not achieve CR would be of interest, but might be confounded by the difficulty in distinguishing between the effects of chemotherapy and those of residual AML on count recovery. Our data suggest that older patients, patients with complex or -5/-7 cytogenetics, and patients with secondary AML should not be excluded from clinical trials because of concern about prolonged time to count recovery. Group CRs CR Rate Median Days to > 1000 Neut Median Days to > 100,000 Plt No AHD no PCT 236 68% 27 28 AHD no PCT 131 50% 27 30 PCT no AHD 28 44% 29 34 AHD + PCT 29 35% 30 36 Age < 60 255 64% 28 29 Age ≥ 60 169 48% 26 30 Normal cyto 281 69% 27 29 Complex cyto or -5/-7 143 41% 29 31 Disclosures: No relevant conflicts of interest to declare.

scholarly journals Eugenol and Lippia Alba Essential Oils as Effective Anesthetics for the Amazonian Freshwater Stingray Potamotrygon Wallacei (Chondrichthyes, Potamotrygonidae)

2021 ◽  
Author(s):  
Cristiano Lopes de Lima ◽  
Ruben Dario Morales-Gamba ◽  
Thiago Santana Malcher Neto ◽  
José Fernando Marques Barcellos ◽  
Berta Maria Heinzmann ◽  
...  
Keyword(s):  
Recovery Time ◽  
Respiratory Physiology ◽  
Plasma Metabolites ◽  
Anesthetic Induction ◽  
Histological Changes ◽  
Lippia Alba ◽  
Freshwater Stingray ◽  
Recovery Times ◽  
Anesthetic Action ◽  
Potential Use

Abstract This study assessed the potential of eugenol and the essential oil of Lippia alba (EOLA) in providing suitable anesthetic induction and recovery times, and their consequent effects on the blood and respiratory physiology, as well as the gill architecture of an Amazonian freshwater stingray, Potamotrygon wallacei, at the onset of the anesthetic event and after 48 h of recovery. Juveniles of P. wallacei (n = 12) were exposed to increasing concentrations of eugenol (75, 100, 125 and 150 µL L− 1) and EOLA (150, 175, 200 and 225 µL L− 1) in an immersion bath. Anesthetic induction was found to be faster with the use of eugenol compared to EOLA. On the other hand, the stingrays anesthetized with eugenol displayed a longer recovery time than those exposed to EOLA. The highest concentrations of eugenol caused moderate to severe histological changes in the gills. No significant changes were found for hematocrit and plasma metabolites in the stingrays anesthetized with all concentrations of both eugenol and EOLA just after the onset of anesthetic action, when compared to those recovered after 48 hours. Investigations regarding the potential use of these natural anesthetics are unprecedented for freshwater stingray species and 200 µL L− 1 EOLA is recommended as the most suitable anesthetic for use in juveniles of P. wallacei.

scholarly journals Adolescents With ADHD Do Not Take Longer to Recover From Concussion

2021 ◽  
Vol 8 ◽  
Author(s):  
Nathan E. Cook ◽  
Grant L. Iverson ◽  
Bruce Maxwell ◽  
Ross Zafonte ◽  
Paul D. Berkner
Keyword(s):  
Recovery Time ◽  
Return To Play ◽  
Return To School ◽  
Prior History ◽  
Return To Sports ◽  
Full Time ◽  
Recovery Times ◽  
Concussion History ◽  
Concussion Recovery ◽  
Medication Status

The objective of this study was to determine whether adolescents with attention-deficit/hyperactivity disorder (ADHD) have prolonged return to school and sports following concussion compared to those without ADHD and whether medication status or concussion history is associated with recovery time. We hypothesized that having ADHD would not be associated with longer recovery time. This prospective observational cohort study, conducted between 2014 and 2019, examined concussion recovery among school sponsored athletics throughout Maine, USA. The sample included 623 adolescents, aged 14–19 years (mean = 16.3, standard deviation = 1.3 years), 43.8% girls, and 90 (14.4%) reported having ADHD. Concussions were identified by certified athletic trainers. We computed days to return to school (full time without accommodations) and days to return to sports (completed return to play protocol) following concussion. Adolescents with ADHD [median days = 7, interquartile range (IQR) = 3–13, range = 0–45] did not take longer than those without ADHD (median days = 7, IQR = 3–13, range = 0–231) to return to school (U = 22,642.0, p = 0.81, r = 0.01; log rank: χ12 = 0.059, p = 0.81). Adolescents with ADHD (median days = 14, IQR = 10–20, range = 2–80) did not take longer than those without ADHD (median days = 15, IQR = 10–21, range = 1–210) to return to sports (U = 20,295.0, p = 0.38, r = 0.04; log rank: χ12 = 0.511, p = 0.48). Medication status and concussion history were not associated with longer recovery times. Adolescents with ADHD did not take longer to functionally recover following concussion. Recovery times did not differ based on whether adolescents with ADHD reported taking medication to treat their ADHD or whether they reported a prior history of concussion.

scholarly journals EFFECT OF SUPPLEMENTED SUCROSE AND INJECTED INSULIN UNDER DIFFERENT RECOVERY TIME ON GLUCOSE, FRUCTOSE AND RIBOSE MEAT LAMB

2020 ◽  
Vol 1 (1) ◽  
pp. 60-64
Author(s):  
Elis Dihansih ◽  
Eddie Gurnadi ◽  
C. Hanny Wijaya ◽  
Rudy Priyanto
Keyword(s):  
Body Weight ◽  
Recovery Time ◽  
Sugar Content ◽  
Insulin Injection ◽  
Flavor Quality ◽  
Raw Meat ◽  
The Third ◽  
Randomized Design ◽  
Recovery Times ◽  
Completely Randomized Design

An experiment was conducted in order to study the influence of supplemented sucrose and  injected insulin under  different recovery  times following  transportation on lamb flavor quality. For the purpose the study used fifty four female local lamb (10 to 12 months of  age)  with  weight  ranging  from  14  to  17  kg.  The  experimental lamb  were assigned into a completely randomized design with 2x3x3 factorial arrangement with 3 replications. The first factor was sucrose supplementation with 2 levels (0 and  6 g/kg body weight).  The second factor was insulin injection  after  transportation with 3 levels (0, 0,3 and 0,6 IU). The third factor was the duration of recovery  times with 3 levels (2, 4 and 6 h prior to slaughtering). Parameters measured were glucose, fructose, and ribose. Results showed that   feeding  sugar and  injecting  insulin to  lamb  following  transportation increased glucose, fructose, and  ribose content of raw  meat while recovery  time  was not  affect meat sugar content. Interaction was not occur  between treatment of Sugar, insulin, and recovery  time.

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