Tag: Jason

Predictors for Developing Severe Myalgic Encephalomyelitis/Chronic Fatigue Syndrome following Infectious Mononucleosis

Abstract:

Background: About 10% of individuals who contract infectious mononucleosis (IM) have symptoms 6 months later that meet criteria for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).  Our study for the first time examined whether it is possible to predict who will develop ME/CFS following IM.

Methods: We have reported on a prospectively recruited cohort of 4,501 college students, of which 238 (5.3%) developed IM.  Those who developed IM were followed-up at six months to determine whether they recovered or met criteria for ME/CFS. The present study focuses on 48 students who after six months had a diagnosis of ME/CFS, and a matched control group of 58 students who had no further symptoms after their IM. All of these 106 students  had data at baseline (at least 6 weeks prior to the development of IM), when experiencing IM, and 6 months following IM. Of those who did not recover from IM, there were two groups: 30 were classified as ME/CFS and 18 were classified as severe ME/CFS. We measured the results of 7 questionnaires, physical examination findings, the severity of mononucleosis and cytokine analyses at baseline (pre-illness) and at the time of IM.  We examined predictors (e.g., pre-illness variables as well as variables at onset of IM) of  those who developed ME/CFS and severe ME/CFS following IM.

Results: From analyses using receiver operating characteristic statistics, the students who had had severe gastrointestinal symptoms of stomach pain, bloating, and an irritable bowel at baseline  and who also had abnormally low levels of the immune markers IL-13 and/or IL-5 at baseline, as well as severe gastrointestinal symptoms when then contracted IM,  were found to have a nearly 80% chance of having severe ME/CFS persisting six months following IM.

Conclusions: Our findings are consistent with emerging literature that gastrointestinal distress and autonomic symptoms, along with several immune markers, may be implicated in the development of severe ME/CFS.

Source: Jason, Leonard & Cotler, Joseph & Islam, Mohammed & Furst, Jacob & Katz, Ben. (2022). Predictors for Developing Severe Myalgic Encephalomyelitis/Chronic Fatigue Syndrome following Infectious Mononucleosis. Journal of Rehabilitation Therapy. 4. 1-5. 10.29245/2767-5122/2021/1.1129. https://www.rehabiljournal.com/articles/predictors-for-developing-severe-myalgic-encephalomyelitischronic-fatigue-syndrome-following-infectious-mononucleosis.html  (Full text)

Evaluating case diagnostic criteria for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): toward an empirical case definition

Abstract:

Purpose: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is an illness characterized by a variety of symptoms including post-exertional malaise, unrefreshing sleep, and cognitive impairment. A variety of case definitions (e.g., the Canadian Consensus Criteria (CCC), the Myalgic Encephalomyelitis International Consensus Criteria (ME-ICC), and the Institute of Medicine (IOM) criteria) have been used to diagnose patients. However, these case definitions are consensus-based rather than empirical.

Materials and methods: The aim of the current study was to evaluate the validity of the aforementioned case definitions by factor analyzing a large, international sample (N = 2308) of ME/CFS symptom data. We performed primary and secondary exploratory factor analyses on the DePaul Symptom Questionnaire’s 54-item symptom inventory. These results were compared to the CCC, the ME-ICC, and the IOM criteria.

Results: We identified seven symptom domains, including post-exertional malaise, cognitive dysfunction, and sleep dysfunction. Contrary to many existing case criteria, our analyses did not identify pain as an independent factor.

Conclusions: Although our results implicate a factor solution that best supports the CCC, revisions to the criteria are recommended. Implications for rehabilitation: ME/CFS is a chronic illness with no consensus regarding case diagnostic criteria, which creates difficulty for patients seeking assistance and disability benefits. The current study compared three commonly used case definitions for ME/CFS by factor analyzing symptomological data from an international sample of patients. Our results suggest three primary and four secondary symptom domains which differed from all three case definitions. These findings could help reduce barriers to care for those disabled with ME/CFS by guiding the development of an empirically-based case definition.

Source: Conroy KE, Islam MF, Jason LA. Evaluating case diagnostic criteria for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): toward an empirical case definition. Disabil Rehabil. 2022 Mar 2:1-8. doi: 10.1080/09638288.2022.2043462. Epub ahead of print. PMID: 35236205. https://pubmed.ncbi.nlm.nih.gov/35236205/

Saliva Fatigue Biomarker Index As a Marker for Severe Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in a Community Based Sample

Abstract:

Objective: The prevalence of pediatric Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) has been estimated from an ethnically and sociodemographically diverse community-based random sample of 10,119 youth aged 5-17. A team of physicians made a final diagnosis of ME/CFS if the participants met criteria for up to three selected case definitions following medical and psychiatric evaluations. We assessed whether a salivary biomarker of fatigue could identify youth with ME/CFS.

Study design: We examined the ratio of the concentrations of 2 peptide fragments in saliva, referred to as the Fatigue Biomarker Index (FBI), in participants from our study diagnosed with ME/CFS (n=59) and matched controls (n=39).

Results: Significant overall differences were found in the FBI between those participants with severe ME/CFS and those with ME/CFS and the controls.

Conclusions: If confirmed in other populations, the FBI could serve as an objective test to aid in the diagnosis of severe ME/CFS.

Source: Jason LA, Kalns J, Richarte A, Katz BZ, Torres C. Saliva Fatigue Biomarker Index As a Marker for Severe Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in a Community Based Sample. Fatigue. 2021;9(4):189-195. doi: 10.1080/21641846.2021.1994222. Epub 2021 Oct 27. PMID: 35186443; PMCID: PMC8855987.  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8855987/ (Full text)

Missteps in Creating a Long Haul COVID Case Definition

Excerpt:

Millions of individuals who have not recovered from the COVID virus are now dealing with a host of symptoms that are challenging our health care system. Many are experiencing significant problems in being recognized by health care workers as a real disorder, as for many of them, there are no biological markers of persistent illness. Just as with ME/CFS, we need to be sure that long haul COVID patients are not victimized first by the pandemic and then by the health care skepticism of their significant symptoms. We have the conceptual and theoretical grounding to develop clinical and research case definitions for those with persisting COVID symptoms. Patients must be instrumentally involved in all such efforts as failure to do so will only further delegitimize their condition.

Read the rest of this article HERE.

Source: Leonard Jason, Ph.D. and Vernita Perkins, PhD. Missteps in Creating a Long Haul COVID Case Definition. Psychology Today. Posted November 22, 2021

Cortical autonomic network connectivity predicts symptoms in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)

Abstract:

Myalgic encephalomyelitis and chronic fatigue syndrome (ME/CFS) represents a significant public health challenge given the presence of many unexplained patient symptoms. Research has shown that many features in ME/CFS may result from a dysfunctional autonomic nervous system (ANS). We explored the role of the cortical autonomic network (CAN) involved in higher-order control of ANS functioning in 34 patients with ME/CFS and 34 healthy controls under task-free conditions.

All participants underwent resting-state quantitative electroencephalographic (qEEG) scalp recordings during an eyes-closed condition. Source analysis was performed using exact low-resolution electromagnetic tomography (eLORETA), and lagged coherence was used to estimate intrinsic functional connectivity between each node across 7 frequency bands: delta (1-3 Hz), theta (4-7 Hz), alpha-1 (8-10 Hz), alpha-2 (10-12 Hz), beta-1 (13-18 Hz), beta-2 (19-21 Hz), and beta-3 (22-30 Hz). Symptom ratings were measured using the DePaul Symptom Questionnaire and the Short Form (SF-36) health survey. Graph theoretical analysis of weighted, undirected connections revealed significant group differences in baseline CAN organization.

Regression results showed that cognitive, affective, and somatomotor symptom cluster ratings were associated with alteration to CAN topology in patients, depending on the frequency band. These findings provide evidence for reduced higher-order homeostatic regulation and adaptability in ME/CFS. If confirmed, these findings address the CAN as a potential therapeutic target for managing patient symptoms.

Source: Zinn MA, Jason LA. Cortical autonomic network connectivity predicts symptoms in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Int J Psychophysiol. 2021 Oct 15:S0167-8760(21)00900-4. doi: 10.1016/j.ijpsycho.2021.10.004. Epub ahead of print. PMID: 34662673. https://pubmed.ncbi.nlm.nih.gov/34662673/

Patient perceptions of infectious illnesses preceding Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Abstract:

Objectives: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is often reported to be caused by an infectious agent. However, it is unclear whether one infectious agent might be the cause or whether there might be many different infectious agents. The objective of this study was to identify self-reported infectious illnesses associated with the onset of ME/CFS.

Methods: The present study involved data from multiple sites in several countries. 1773 individuals diagnosed with either ME, CFS or ME/CFS provided qualitative data concerning infectious triggers which were coded and classified for analysis.

Results: 60.3% of patients report a variety of infectious illnesses some time before onset of ME/CFS. The most frequently reported infectious illness was Mononucleosis, which occurred in 30% of infections. However, over 100 other infectious illnesses were mentioned.

Discussion: The findings suggest that many infectious agents might be associated with the onset of ME/CFS.

Source: Jason LA, Yoo S, Bhatia S. Patient perceptions of infectious illnesses preceding Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Chronic Illn. 2021 Sep 20:17423953211043106. doi: 10.1177/17423953211043106. Epub ahead of print. PMID: 34541918. https://pubmed.ncbi.nlm.nih.gov/34541918/

COVID-19 Symptoms Over Time: Comparing Long-Haulers to ME/CFS

Abstract:

Introduction: Our objective was to determine which symptoms among long-hauler COVID-19 patients change over time, and how their symptoms compare to another chronic illness group. 278 long-haulers completed two symptom questionnaires at one time point, with one recounting experiences from an average of 21.7 weeks prior.

Methods: We used a comparison group of 502 patients diagnosed with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Participants completed a standardized symptom questionnaire and a list of additional CDC COVID-19 symptoms.

Results: Over time, the long-haulers reported an overall reduction of most symptoms including unrefreshing sleep and post-exertional malaise, but an intensification of neurocognitive symptoms. When compared to ME/CFS, the COVID-19 sample was initially more symptomatic for the immune and orthostatic domains but over time, the long-haulers evidenced significantly less severe symptoms than those with ME/CFS, except in the orthostatic domain. Among the COVID-19 long haulers, several neurocognitive symptoms got worse over time, whereas improvements occurred in most other areas.

Conclusions: These types of differential patterns of symptoms over time might contribute to helping better understand the pathophysiology of those reporting prolonged illness following COVID-19.

Source: Jason LA, Islam M, Conroy K, Cotler J, Torres C, Johnson M, Mabie B. COVID-19 Symptoms Over Time: Comparing Long-Haulers to ME/CFS. Fatigue. 2021;9(2):59-68. doi: 10.1080/21641846.2021.1922140. Epub 2021 May 5. PMID: 34484973; PMCID: PMC8411893. https://pubmed.ncbi.nlm.nih.gov/34484973/

Causal attributions and perceived stigma for myalgic encephalomyelitis/chronic fatigue syndrome

Abstract:

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a chronic disease with the hallmark symptom of post-exertional malaise. Evidence for physiological causes is converging, however, currently no diagnostic test or biomarker is available. People with ME/CFS experience stigmatization, including the perception that the disease is psychosomatic.

In a sample of 499 participants with self-diagnosed ME/CFS, we investigated perceived stigma as a pathway through which perceived others’ causal attributions relate to lower satisfaction with social roles and activities and functional status. Higher perceived attributions by others to controllable and unstable causes predicted lower health-related and social outcomes via higher perceived stigma.

Source: Froehlich L, Hattesohl DB, Cotler J, Jason LA, Scheibenbogen C, Behrends U. Causal attributions and perceived stigma for myalgic encephalomyelitis/chronic fatigue syndrome. J Health Psychol. 2021 Jul 9:13591053211027631. doi: 10.1177/13591053211027631. Epub ahead of print. PMID: 34240650. https://journals.sagepub.com/doi/10.1177/13591053211027631#  (Full text)

Parent-child discrepancies in health-related quality of life of children and adolescents with myalgic encephalomyelitis/chronic fatigue syndrome

Abstract:

Purpose: Few studies have examined parent-child discrepancies on self-report measures of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) symptomatology and health-related quality of life (HRQOL). The aim of this study was to investigate parent-child reporting discrepancies between a pediatric sample of diagnosed patients with ME/CFS and controls to better understand the role of children and adolescent reporting.

Method: Data for this study were drawn from a community-based epidemiological study of pediatric ME/CFS in the Chicagoland area. A total of 147 parent-child dyads (75 pairs with ME/CFS and 72 control pairs) completed measures assessing HRQOL and ME/CFS symptomatology. At the individual level, agreement was assessed using intra-class correlation coefficient (ICC) scores. Agreement was measured at the group level by a comparison of means using paired-sample t-tests.

Results: Intra-class correlations revealed varied agreement in both parent-child pairs of children who met at least one case definition of ME/CFS and in parent-child pairs in the control group.

Conclusion: The current study provides support for the existence of discrepancies between parent-child reports of ME/CFS symptomatology and HRQOL measures. Limitations and future directions are discussed.

Source: Ekberg KM, Torres C, Jason LA. Parent-child discrepancies in health-related quality of life of children and adolescents with myalgic encephalomyelitis/chronic fatigue syndrome. Qual Life Res. 2021 Jun 30. doi: 10.1007/s11136-021-02919-w. Epub ahead of print. PMID: 34191221. https://pubmed.ncbi.nlm.nih.gov/34191221/

The Prevalence of Pediatric Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in a Community‑Based Sample

Abstract:

Background: Most pediatric prevalence studies of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) have been based upon data from tertiary care centers, a process known for systematic biases such as excluding youth of lower socioeconomic status and those less likely to have access to health care. In addition, most pediatric ME/CFS epidemiologic studies have not included a thorough medical and psychiatric examination. The purpose of this study was to determine the prevalence of pediatric ME/CFS from an ethnically and sociodemographically diverse community-based random sample.

Method: A sample of 10,119 youth aged 5-17 from 5622 households in the Chicagoland area were screened. Following evaluations, a team of physicians made final diagnoses. Youth were given a diagnosis of ME/CFS if they met criteria for three selected case definitions. A probabilistic, multi-stage formula was used for final prevalence calculations.

Results: The prevalence of pediatric ME/CFS was 0.75%, with a higher percentage being African American and Latinx than Caucasian. Of the youth diagnosed with ME/CFS, less than 5% had been previously diagnosed with the illness.

Conclusions: Many youth with the illness have not been previously diagnosed with ME/CFS. These findings point to the need for better ways to identify and diagnose youth with this illness.

Source: Jason LA, Katz BZ, Sunnquist M, Torres C, Cotler J, Bhatia S. The Prevalence of Pediatric Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in a Community‑Based Sample. Child Youth Care Forum. 2020 Aug;49(4):563-579. doi: 10.1007/s10566-019-09543-3. Epub 2020 Jan 23. PMID: 34113066; PMCID: PMC8186295. https://pubmed.ncbi.nlm.nih.gov/34113066/