High Prevalence Research Articles

HIV drug resistance: analysis of viral genotypes and mutation loci in people living with HIV in Chongqing, China (2016–2023)

BackgroundLarge-scale HIV genotype drug resistance study has not been conducted in Chongqing.MethodsA retrospective study was conducted on people living with HIV(PLWH) who received HIV-1 genotype resistance testing at Chongqing Public Health Medical Center from May 2016 to June 2023. The HIV-1pol gene was amplified through RT-PCR and analyzed in terms of genotypic drug resistance.ResultsOf the 3015 PLWH tested for HIV-1 drug resistance, 1405 (46.6%) were resistant to at least one antiviral drug. Among non-nucleoside reverse transcriptase inhibitors (NNRTIs), 43.8% were resistant, compared to 29.5% for nucleoside reverse transcriptase inhibitors (NRTIs) and 3.4% for protease inhibitors (PIs). V179D/E and K103N/S were identified as the common mutation sites in the NNRTIs class of drugs, M184V/I and K65R/N were reported as the most common mutation sites in NRTIs, while thymidine analogue mutation (TAM) group was identified in 373 samples. L10FIV was the most common mutation in PIs. The dominant HIV-1 subtype was CRF07_BC.ConclusionsThe high prevalence of HIV-1 drug resistance in Chongqing underscores the imperative for rigorous surveillance of the local HIV epidemic. Furthermore, TAMs are associated with HIV-1 multidrug resistance, and timely detection of drug resistance is helpful to reduce the emergence and spread of such drug-resistant strains.

Evaluation of Risk Factors, Clinical Spectrum and Management of New Onset Seizure

A seizure is a brief deviation from the brain's regular electrical activity that alters awareness and behavior. Seizures are brief burst so fun controllable movement that can affect either a piece of the body (partial) or the full body (generalized) and are frequently followed by a loss of awareness and control over bowel or bladder function. Epilepsy is distinguished by recurring seizures. Epilepsy is a neurological disorder marked by sudden recurrent episodes of sensory disturbance, loss of consciousness, associated with abnormal electrical activity in the brain. The goal of the study is to find out risk factors and prescribing pattern of antiseizure drugs in different types of seizure disorder. An educational observational study was carried out among 42 samples in the In-patient Department of General Medicine, ESI MC- PGIMSR, and Rajajinagar. The data was collected using self-designed data collection form. All information’s were processed and analyzed by using Microsoft excel. It was observed that a majority of the subjects involved in the study was prescribed with Levetiracetam (69.81%). A high prevalence of New onset seizure with risk factor of CVS causes (36.92%) and Alcohol withdrawal (20%) was observed. In CVS cause, stroke was prominent. From this study, generalized tonic clonic seizure was most commonly observed type of seizure and Levetiracetam was most frequently prescribed drug to them. Majority of patients were given mono therapy to achieve seizure control.

Small striatal huntingtin inclusions in patients with motor neuron disease with reduced penetrance and intermediate HTT gene expansions.

Short tandem repeat expansions in the human genome are overrepresented in a variety of neurological disorders. It was recently shown that huntingtin (HTT) repeat expansions with full penetrance, i.e. 40 or more CAG repeats, which normally cause Huntington's disease (HD), are overrepresented in patients with amyotrophic lateral sclerosis (ALS). Whether patients carrying HTT repeat expansions with reduced penetrance, (36-39 CAG repeats), or alleles with intermediate penetrance, (27-35 CAG repeats), have an increased risk of ALS has not yet been investigated. Here, we examined the role of HTT repeat expansions in a motor neuron disease (MND) cohort, searched for expanded HTT alleles, and investigated correlations with phenotype and neuropathology. MND patients harboring C9ORF72 hexanucleotide repeat expansions (HREs) were included, to investigate whether HTT repeat expansions were more common in this group. We found a high prevalence of intermediate (range 5.63%-6.61%) and reduced penetrance (range 0.57%-0.66%) HTT gene expansions in this cohort compared to other populations of European ancestry, but no differences between the MND cohort and the control cohort were observed, regardless of C9ORF72HRE status. Upon autopsy of three patients with intermediate or reduced penetrance HTT alleles, huntingtin inclusions were observed in the caudate nucleus and frontal lobe, but no significant somatic mosaicism was detected in different parts of the nervous system. Thus, we demonstrate, for the first time, huntingtin inclusions in individuals with MND and intermediate and reduced penetrance HTT repeat expansions but more clinicopathological investigations are needed to further understand the impact of HTT gene expansion-related pleiotropy.

Mental distress and nutrition of family physicians, a European based cross-sectional study.

Family physicians are a pillar of the primary healthcare system, and their own mental well-being is integral to their performance. However, many studies have suggested a high prevalence of mental distress. The contributing factors include the emotional demands of the profession, work overload, budgetary constraints, loss of autonomy, and erosion of professional values. Outbreaks such as the COVID-19 pandemic exacerbate distress due to a greater risk of exposure to the virus, increased working hours, and fear of infecting families. Thus, it is crucial to assess risks and provide preventive measures. This study aimed to evaluate the association between the dietary patterns of family physicians and their mood. This study used a cross-sectional descriptive method and a validated Food-Mood Questionnaire (FMQ), shared via social networks across 10 European countries, to collect data from family physicians. Permission to use the FMQ was obtained. The breakfast-pattern subscale had the highest mean score (14.670 ± 4.305). The other subscale mean scores were as follows: health pattern (13.317 ± 5.388), mental distress pattern (11.184 ± 3.824), and western diet pattern (9.827 ± 3.604). According to Pearson correlation test there was a positive correlation between breakfast and Western diet patterns and between breakfast and health patterns. There was a negative correlation between health and mental distress pattern. Evidence suggests that mental distress may arise from different dietary deficiencies. Physicians' nutritional patterns have an impact on health indicators and are distributed in relation to sociodemographic factors, especially the regions they live in. Diet assessment is becoming a vital modifiable risk factor for mental health, but further research in this field is needed.

Housing instability patterns among low-income, urban Black young adults in California and associations with mental health outcomes: baseline data from a randomized waitlist-controlled trial

BackgroundDeep-rooted racial residential segregation and housing discrimination have given rise to housing disparities among low-income Black young adults in the US. Most studies have focused on single dimensions of housing instability, and thus provide a partial view of how Black young adults experience multiple, and perhaps overlapping, experiences of housing instability including homelessness, frequent moves, unaffordability, or evictions. We aimed to illuminate the multiple forms of housing instability that Black young adults contend with and examine relationships between housing instability and mental health outcomes.MethodsUsing baseline data from the Black Economic Equity Movement (BEEM) guaranteed income trial with 300 urban low-income Black young adults (aged 18–24), we conducted a three-stage latent class analysis using nine housing instability indicators. We identified distinct patterns by using fit indices and theory to determine the optimal number of latent classes. We then used multinomial logistic regression to identify subpopulations disproportionately represented within unstable housing patterns. Finally, we estimated associations between housing experience patterns and mental health outcomes: depression, anxiety, and hope.ResultsWe found high prevalence of housing instability with 27.3% of participants reporting experiences of homelessness in the prior year and 39.0% of participants reporting multiple measures of housing instability. We found the 4-class solution to be the best fitting model for the data based on fit indices and theory. Latent classes were characterized as four housing experience patterns: 1) more stably housed, 2) unaffordable and overcrowded housing, 3) mainly unhoused, and 4) multiple dimensions of housing instability. Those experiencing unaffordable and overcrowded housing and being mainly unhoused were more than four times as likely to have symptoms of depression (Unaffordable: aOR = 4.57, 95% CI: 1.64, 12.72; Unhoused: aOR = 4.67, 95% CI:1.18, 18.48) and more than twice as likely to report anxiety (Unaffordable: aOR = 2.28, 95% CI: 1.03, 5.04; Unhoused: aOR = 3.36, 95% CI: 1.12, 10.05) compared to the more stably housed pattern. We found that hope scores were similarly high across patterns.ConclusionsHigh prevalence of housing instability and mental health challenges among low-income Black young adults demands tailored interventions to reduce instability, given widening racial disparities and implications for future well-being into adulthood.

Portrayal of Sexually Transmitted Infections in Popular Films.

Stigmatization of sexually transmitted infections (STIs) threatens provider-patient relationships and contributes to the underutilization of STI services. Media can shape public attitudes toward healthcare topics by perpetuating or reducing stigma. Given the high prevalence of STIs and the widespread consumption of media, it is essential for healthcare providers to be cognizant of factors influencing societal perceptions of STI symptoms, transmission, diagnosis, and treatment. This study is a scoping review of popular films depicting STIs. Full-length English-language narrative films featuring characters with confirmed or suspected STIs were included. Descriptive statistics were used to determine the proportion of characters accurately portrayed with STI symptoms, transmission, diagnosis, and treatment. The final analysis comprised 128 characters from 77 films, with human immunodeficiency virus (HIV) being the most frequently featured STI (42 films, 54.5%). The overall accuracy across all four clinical variables of symptoms, transmission, diagnosis, and treatment was 87.4%. Transmission was the most depicted clinical variable, represented in 74 characters (57.8%). All four clinical variables were simultaneously depicted in only four (3.1%) characters, with two characters portraying all four clinical variables accurately. Death occurred in 39 characters (30.5%), with HIV accounting for the majority (82.1%). Most films accurately portrayed STI clinical variables, including symptoms, transmission, diagnosis, and treatment. Rates of individual variable depiction were inconsistent, while death secondary to STIs was common. Understanding the portrayal of STIs in popular films can provide valuable insights for clinicians, enabling them to effectively address patient misconceptions and knowledge gaps.

Food Insecurity Prevalence and Risk Factors among Persons with HIV in a Southeastern US Clinical Care Setting.

Food insecurity (FI) is associated with adverse health outcomes for persons with HIV (PWH). Little is known about FI among PWH in southern or non-urban settings. We examined FI prevalence, risk factors, and access to services in a southeastern HIV clinic. Among PWH in the UNC CFAR HIV Clinical Cohort who were screened for FI as part of HIV care between 2021 and 2022, we estimated unadjusted prevalence ratios (PRs) comparing the probability of reporting FI by demographic and clinical characteristics. The 479 PWH screened for FI were 65% cisgender men, 62% non-Hispanic Black PWH, a median of 54 years old (IQR 41-62), and 93% with an HIV viral load (VL) < 200 copies/mL. FI prevalence was 36.3% (95% CI 32.3%-40.9%). Cisgender women and transgender adults were more likely to report FI than cisgender men (PRs 1.24 [95% CI 0.97-1.59] and 2.03 [1.32-3.12], respectively). Compared with White PWH, the PR was 1.71 (1.20-2.42) for Black and 2.44 (1.56-3.82) for Hispanic PWH. The PR was 1.42 (0.98-2.05) for PWH with VL ≥ 200 versus < 200 copies/mL. Having no or public versus private health insurance was also associated with FI. PWH with FI had a high prevalence of comorbidities including hypercholesterolemia (49%) and hypertension (48%), though these were not associated with FI. Almost half of PWH with FI were not accessing a food pantry or nutrition assistance program. Identifying FI in PWH is critical as FI is common and may contribute to viral non-suppression, poor comorbidity control, and gender and racial/ethnic health disparities in PWH.

Prevalence of undiagnosed hypertension and associated factors in Ndera sector, Gasabo district of Rwanda: a cross-sectional study

BackgroundHypertension remains a major global health challenge, including in low- and middle-income countries. In Rwanda, a lack of adequate information and healthcare services impacts healthcare-seeking behaviors, contributing to undiagnosed hypertension in rural areas. Therefore, the need to determine its prevalence and associated factors.MethodsA cross-sectional study was conducted with 393 adults in the Ndera Sector, of Rwanda’s Gasabo District, through a multistage sampling technique. Data was gathered using the WHO STEP-wise approach to non-communicable disease risk factor surveillance (STEPS) questionnaire; physical examination was done to determine blood pressure and body-mass index (BMI), after which the data collected was analyzed using SPSS. Newly diagnosed hypertension was determined when on two different intervals, systolic blood pressure readings was > 140 mmHg, and/or the diastolic blood pressure readings was > 90 mmHg, in the absence of previous hypertension diagnosis.ResultsThe overall prevalence of hypertension among patients at Ndera sector was 15%, all of which were newly diagnosed. The mean (SD) age of the participants was 37 (13.7) years and half (53%) were women. The mean systolic blood pressure for men was 124.3 mmHg compared to 120.9 mmHg for women (p = 0.043, 95%CI: 0.12–6.74). Women had a significantly higher mean BMI (26.0) compared to men (22.8) (p < 0.001, 95%CI: -4.18 - -2.31). Age (χ² = 37.400, p < 0.001), residence (χ² = 10.200, p < 0.001), BMI (χ² = 22.1, p < 0.001), and lack of knowledge about hypertension (χ² = 25.1, p < 0.001) were the factors with significantly undiagnosed hypertension.ConclusionsThe high prevalence of undiagnosed hypertension in Ndera Sector is linked to gender, older age, higher BMI, location, and lack of hypertension knowledge. These findings call for multifaceted approaches, combining educational initiatives, geographical targeting, lifestyle modifications, and policy implementations, all aimed at mitigating the burden of undiagnosed hypertension and enhancing community health within the Ndera Sector.

Overcoming Osimertinib Resistance with AKT Inhibition in EGFRm-Driven Non-Small Cell Lung Cancer with PIK3CA/PTEN Alterations.

Osimertinib is an EGFR tyrosine kinase inhibitor indicated for the treatment of EGFR-mutated (EGFRm)-driven lung adenocarcinomas. Osimertinib significantly improves progression-free survival in first-line-treated patients with EGFRm advanced non-small cell lung cancer (NSCLC). Despite the durable disease control, the majority of patients receiving osimertinib eventually develop disease progression. ctDNA profiling analysis of on-progression plasma samples from patients treated with osimertinib in both first- (phase III, FLAURA trial) and second-line trials (phase III, AURA3 trial) revealed a high prevalence of PIK3CA/AKT/PTEN alterations. In vitro and in vivo evidence using CRISPR-engineered NSCLC cell lines and patient-derived xenograft (PDX) models supports a functional role for PIK3CA and PTEN mutations in the development of osimertinib resistance. These alterations are functionally relevant as EGFRm NSCLC cells with engineered PIK3CA/AKT/PTEN alterations develop resistance to osimertinib and can be resensitized by treatment with the combination of osimertinib and the AKT inhibitor capivasertib. Moreover, xenograft and PDX in vivo models with PIK3CA/AKT/PTEN alterations display limited sensitivity to osimertinib relative to models without alterations, and in these double-mutant models, capivasertib and osimertinib combination elicits an improved antitumor effect versus osimertinib alone. Together, this approach offers a potential treatment strategy for patients with EGFRm-driven NSCLC who have a suboptimal response or develop resistance to osimertinib through PIK3CA/AKT/PTEN alterations. See related commentary by Vokes et al., p. 3968.

Evaluating cochlear implant outcomes in DFNA9 subjects: a comprehensive study on cerebral white matter lesions and vestibular abnormalities.

This study assessed whether the Fazekas score could account for the variability in cochlear implantation (CI) outcomes among individuals with DFNA9 and evaluated signal loss in the semicircular canals (SCCs) on magnetic resonance imaging (MRI) among individuals with DFNA9. This retrospective cross-sectional study included CI recipients with DFNA9. Pre-implantation MRI-scans were reviewed to determine the Fazekas score, localizing and grading cerebral white matter lesions (WML), and identify abnormalities in the SCCs. CI performance was assessed by evaluating phoneme scores one year post-implantation. The function of the SCCs was evaluated using rotatory chair testing with electronystagmography (ENG) and the video Head Impulse Test (vHIT). Forty-five subjects (49 ears) were enrolled. The phoneme scores significantly improved from 35% (IQR 11-50) pre-implantation to 84% (IQR 76-90) one year post-implantation. No correlation was observed between the Fazekas score and the one-year post-implantation phoneme score (rsp=0.003, p = 0.986). Signal loss in at least one SCCs was detected in 97.7% of subjects and 77.8% of ears. There was no correlation between vestibular test results and fluid signal loss in the SCCs on MRI. Most individuals with DFNA9 show improved speech recognition with CI. The observed variability in CI outcomes was not linked to the Fazekas score. Additionally, our study confirms a high prevalence of focal sclerosis in DFNA9. Recognizing the limitations of this study, further research is needed to explore the predictive role of the Fazekas score on CI outcomes and its relationship with vestibular function.

Quality assessment of common anti-malarial medicines marketed in Gambella, National Regional State, South Western-Ethiopia

BackgroundOver the past years, there has been a growing concern that a considerable amount of anti-malarial supply in the underdeveloped world particularly in the private sector, is of poor quality. The World Health Organization (WHO) has received about 1500 reports that mentions instances of substandard and falsified products since 2013. The majority of the reports concerned antibiotics and anti-malarials. The majority of reports (42%) originate from the WHO African region.ObjectiveThis study intends to assess the quality of the most widely used anti-malarial medications [artemether-lumefantrine tablets, chloroquine phosphate tablets, primaquine phosphate tablets, artesunate, and artemether injections] in Gambella, South-West, Ethiopia.MethodsA total of 52 samples were collected on June 2022 from Gambella National Regional State, Ethiopia. Half of the districts (six) located in the four zones of the region were chosen using simple random sampling technique. All drug retail outlets available in the selected districts (locally known as woredas) were included. The samples were subjected to visual inspection with a tool adopted from the joint WHO/FIP/ USP checklist. The pharmacopeial tests for identification, uniformity of dosage forms, assay, thickness, diameter, hardness, friability, disintegration test, dissolution, and sterility tests were carried out according to the USP 44-NF 39 and International Pharmacopoeia 11th edition, 2022 monographs.Results and DiscussionOnly 25% of the samples were registered on the Ethiopian Food and Drug Authority (EFDA’s) electronic regulatory/ registration system (ERIS). Besides, 88.8% of artemether injection products were presented in clear glass ampoules. This might expose the products to photochemical degradation that leads to in loss of anti-plasmodial activity. In addition, 50% of the artemether products assessed were not bioequivalent with the comparator product in the in vitro dissolution comparison tests. Overall, the study findings reveal a high prevalence (58.3%) of substandard anti-malarial drugs in the region. The stated percent of the samples had failed in one or more of the quality test parameters assessed in this study.ConclusionThe study findings reveal a high prevalence (58.3%) of substandard anti-malarial drugs in the region. Only a quarter were registered and 38% of the unregistered products failed the quality tests. Hence, the national, regional medicine regulatory bodies and other stake holders should perform the required roles to circumvent presence of Substandard and Falsified (SF) anti-malarial drugs in the study sites.

Prevalence of stress urinary incontinence symptoms and their impact on the quality of life of Palestinian women: the first large cross-sectional study among the general population

BackgroundLittle studies were conducted to assess the prevalence of stress urinary incontinence among Palestinian women. This study was conducted to determine the prevalence of stress urinary incontinence symptoms, their impact on the quality of life, and the risk factors that were associated with stress incontinence symptoms among Palestinian women.MethodsThis study was conducted in a cross-sectional design from 2023 to 2024. The data were collected through an interviewer-administered questionnaire. The questionnaire collected the demographic and health characteristics of the women. Additionally, the questionnaire also contained the PRAFAB questionnaire (PRAFAB-Q). Moreover, the questionnaire included the Assessment of Quality of Life (AQoL)-8D scale.ResultsData were collected from 386 Palestinian women (response rate = 85.8%). The mean age of women in this study was 37.1 ± 14.7 years. In this study, 104 (26.9%) reported stress urinary incontinence symptoms. Of the women, 102 (26.4%) reported urinary leakage during coughing, 100 (25.9%) reported urinary leakage during sneezing, and 94 (24.4%) reported urinary leakage during laughing. The women who had a family history of stress incontinence were 2.5-fold (95% CI: 1.2–5.2) more likely to have stress incontinence symptoms compared to the women who did not have a family history of stress incontinence. Similarly, the women who were overweight/obese were 2.0-fold (95% CI: 1.1–3.7) more likely to have stress incontinence symptoms compared to the women who were underweight or had a normal weight. PRAFAB-Q scores were predicted by place of residence, family history of stress incontinence, and being recruited from a hospital.ConclusionThe study reported a high prevalence of stress urinary incontinence and identified the risk factors that were associated with stress incontinence symptoms among Palestinian women. The findings showed that the intensity of stress urinary incontinence symptoms was associated with deteriorated quality of life of the affected women. These findings could be used by urologists, gynecologists, obstetricians, and other healthcare providers caring for women to design ways to reduce the burden of stress urinary incontinence among Palestinian women and improve their quality of life.

Performance of the Vetscan Imagyst in point-of-care detection of Giardia duodenalis in canine fecal samples.

Giardia duodenalis is a common parasite of the gastrointestinal tract of dogs, with an especially high prevalence in dogs <1-y-old. Methods for detecting G. duodenalis are point-of-care (POC) tests such as lateral-flow tests or fecal flotation. The Vetscan Imagyst (Zoetis) is a new POC device for the detection of G. duodenalis in fecal samples using zinc sulfate flotation, automated slide scanning, and image recognition with artificial intelligence. Vetscan results are the number of Giardia cysts per coverslip. We compared the performance of the Vetscan and another POC test (SNAP Giardia test; Idexx) with a direct immunofluorescence assay (IFA) performed in a specialized parasitology laboratory as the reference test. We included 164 dogs <19-mo-old. We used pooled fecal samples from 3 defecations gained within 2-3 d and tested the repeatability of the Vetscan by triplicate measurement. Compared to IFA, Vetscan had a diagnostic sensitivity of 88.4% and specificity of 98.1%; SNAP had a diagnostic sensitivity of 74.4% and specificity of 98.1%. A variation coefficient of 67.0% was determined for the Vetscan results. The performance of the Vetscan is acceptable for the qualitative evaluation of fecal samples (Giardia positive or negative), and the device can be used by untrained personnel. Given its high variation coefficient, we do not recommend the Vetscan for monitoring the number of cysts.

High prevalence and genetic heterogeneity of adenoviruses at a psittacine breeding facility.

A polymerase chain reaction (PCR) survey was performed at an amateur parrot breeding facility in Italy to investigate the presence and molecular characteristics of adenoviruses. Eighty psittacine birds, belonging to seven parrot species, were sampled by cloacal swabs; in addition, 15 livers were collected from specimens that were found dead. Seventy-two out of 95 samples collected were positive for adenoviruses, with a prevalence rate of 75.8%. All seven psittacine species tested positive for at least one genus of the family Adenoviridae; notably, adenoviral infection was found for the first time in the hooded parrot (Psephotellus dissimilis). Based on the sequences and phylogenetic analysis, 57 sequences were psittacine adenovirus 2, seven sequences were duck adenovirus 1 and two sequences were identified as psittacine adenovirus 5. The six remaining sequences showed low nucleotide and amino acid identity with the reference strains of accepted species or types, revealing the presence of novel adenoviruses belonging to the genera Aviadenovirus, Barthadenovirus and Siadenovirus. There were identical adenovirus sequences in both apparently healthy and dead birds suggesting that further investigation into the role and impact of these viruses on the health of psittacine birds is warranted.

A - 145 Cognitive Disengagement Syndrome in ALL Survivor

Abstract Objective Cognitive disengagement syndrome (CDS), previously known as sluggish cognitive tempo (SCT), presents with symptoms like mind-wandering, hypoactivity, and mental fogginess. There is a relatively high prevalence (23.7%) of CDS in survivors of acute lymphoblastic leukemia (ALL), although the neuropathology remains poorly understood, potentially involving autonomic nervous system dysfunction. Cognitive late effects, including slowed speed, inattention and executive dysfunction can occur post-cancer treatment. This case highlights the need for regular assessment of CDS, particularly in the pediatric cancer population. Given the symptom overlap it is important to discuss onset, duration, and variability of symptom presentation to rule-in/out the role of cognitive late effects. Method “Alex,” a 14-year-old, B cell ALL survivor, was struggling academically nine years post-treatment. She and parents reported slowness, fatigue, trouble concentrating, and social withdrawal, despite medical stability. She received two years of psychotherapy for anxiety and depression without improvement. Results Alex had average intellectual and cognitive functioning, with mild executive dysfunction. Despite reported slowness in daily activities, processing speed was average. Parent and self-report forms indicated significant problems with executive functioning, somatic symptoms, and inattention. Parents indicated significant symptoms on the SCT scale. Alex’s cognitive profile suggested ADHD-I with features consistent with CDS. Conclusions Discrepancies between testing scores and daily life challenges were inconsistent with cognitive late effects. Her physical symptoms (e.g., fatigue, social withdrawal) did not improve with mood as expected with depression. Identifying these discrepancies and symptom timeline was crucial in diagnosing CDS and guiding interventions, leading to a sense of relief and direction for Alex and her family.

Comparative genomic analysis of thermophilic fungi reveals convergent evolutionary adaptations and gene losses

Thermophily is a trait scattered across the fungal tree of life, with its highest prevalence within three fungal families (Chaetomiaceae, Thermoascaceae, and Trichocomaceae), as well as some members of the phylum Mucoromycota. We examined 37 thermophilic and thermotolerant species and 42 mesophilic species for this study and identified thermophily as the ancestral state of all three prominent families of thermophilic fungi. Thermophilic fungal genomes were found to encode various thermostable enzymes, including carbohydrate-active enzymes such as endoxylanases, which are useful for many industrial applications. At the same time, the overall gene counts, especially in gene families responsible for microbial defense such as secondary metabolism, are reduced in thermophiles compared to mesophiles. We also found a reduction in the core genome size of thermophiles in both the Chaetomiaceae family and the Eurotiomycetes class. The Gene Ontology terms lost in thermophilic fungi include primary metabolism, transporters, UV response, and O-methyltransferases. Comparative genomics analysis also revealed higher GC content in the third base of codons (GC3) and a lower effective number of codons in fungal thermophiles than in both thermotolerant and mesophilic fungi. Furthermore, using the Support Vector Machine classifier, we identified several Pfam domains capable of discriminating between genomes of thermophiles and mesophiles with 94% accuracy. Using AlphaFold2 to predict protein structures of endoxylanases (GH10), we built a similarity network based on the structures. We found that the number of disulfide bonds appears important for protein structure, and the network clusters based on protein structures correlate with the optimal activity temperature. Thus, comparative genomics offers new insights into the biology, adaptation, and evolutionary history of thermophilic fungi while providing a parts list for bioengineering applications.

Kikuchi-Fujimoto lymphadenitis in a patient with human immunodeficiency virus infection: The importance of precision pathology.

Kikuchi-Fujimoto lymphadenitis (or histiocytic necrotising lymphadenitis) is a rare disease that is usually benign and self-limiting. A higher prevalence is reported amongst East Asian populations. No clear etiology has been identified although it has been associated with some viruses, rarely the Human Immunodeficiency Virus (HIV) and autoimmune pathologies. To date, there has only been a handful of cases reported globally in association with HIV, and this association is even rarer in the Asian context. A 20-year-old Asian ethnic Malay male, with no past medical history, presented with daily fevers and chills for 2weeks associated with constitutional symptoms and bilateral non-tender cervical, axillary and inguinal lymphadenopathy. Full blood count showed lymphocytosis with large granular lymphocytes. HIV viral load returned positive at >10million copies/mL. His absolute CD4 T helper cell count was 375cells/uL (7%). The rest of the infective and autoimmune workup were negative. Excision biopsy of an enlarged left cervical lymph node revealed Kikuchi lymphadenitis in the proliferative phase, with no evidence of lymphoproliferative disease. He was started on anti-retroviral therapy with resolution of the lymphadenopathy in 3months. We present a case of Kikuchi lymphadenitis associated with HIV. This highlights that Kikuchi lymphadenitis may mimic sinister pathologies (such as tuberculosis and lymphoma) and that it needs to be considered in the differential diagnosis before empirical treatment for tuberculosis or invasive investigations for lymphoma are done.

Association of Estrogen Receptor-α and Aryl Hydrocarbon Receptor Gene Polymorphisms with Ischemic Stroke in an Egyptian Population: A Pilot Study.

Stroke is the second leading cause of death and a major contributor to disability worldwide, with the highest prevalence in developing countries. Ischemic stroke (IS) is a complex disease resulting from genetic and environmental interactions. The present work is a pilot study exploring the association of estrogen receptor-α (ESR1) and aryl hydrocarbon receptor (AHR) SNPs with IS in a small Egyptian population of IS patients. Sixty IS patients and 60 matched healthy controls were included in this case-control study. Genotyping of ESR1 PvuII (rs2234693), ESR1 XbaI (rs9340799), and AHR rs2066853 SNPs was performed using real-time PCR. ESR1 PvuII TC and CC genotypes were associated with IS (odds ratio (OR) = 2.821, 95% confidence interval (CI) = 1.204-6.609, p = 0.017, and OR = 9.455, 95% CI = 2.222-40.237, p = 0.002, respectively), and TC genotype in female IS (OR = 4.018, 95% CI = 1.117-14.455, p = 0.033). Additionally, ESR1 XbaI GA and GG genotypes were associated with IS (OR = 2.833, 95% CI = 1.190-6.749, p = 0.019, and OR = 34.000, 95% CI = 6.965-165.980, p < 0.001, respectively), and the AG and GG genotypes in male IS (OR = 3.378, 95% CI = 1.103-10.347, p = 0.033 and OR = 22.8, 95% CI = 2.580-201.488, p = 0.005, respectively) and the GG genotype in female IS (95% CI = 7.259-1115.914, p < 0.001). ESR1 PvuII and XbaI haplotypes C-A, T-G, and C-A increased the risk of ISin both genders, in male IS, and in female IS apart from C-A. The AG genotype of AHR rs2066853 was associated with male IS (OR = 6.900, 95% CI = 2.120-22.457 p = 0.001). ESR1 PvuII, ESR1 XbaI, and AHR rs2066853 SNPs are associated with IS in Egyptians. However, this is a small sample, and the findings should be replicated in a larger population.

Electroacupuncture versus solifenacin succinate for female overactive bladder: study protocol for a multicentre, randomised, controlled, double-dummy, non-inferiority trial

IntroductionOveractive bladder (OAB) affects approximately 500 million people worldwide, with a higher prevalence in women than in men, significantly impacting the quality of life of female patients. Treatment options for...

Longitudinal refractive errors over 36 months in Hispanic and Black children.

This study brings awareness of racial/ethnic difference of refractive error characteristics in clinics. This study aimed to assess longitudinal change in refractive errors over a 36-month period in Hispanic and Black children. Children (2.4 to 15 years old) were studied. Cycloplegic refraction was measured annually. Spherical equivalent was calculated. Astigmatism was evaluated by magnitude of cylinder and power vector (J0 and J45). Absolute value of interocular spherical equivalent difference was used to calculate anisometropia. Mixed-linear model was used to analyze longitudinal annual change in spherical equivalent, cylinder, J0, and J45 over 36 months. A total of 485 participants (310 Black, 175 Hispanic) met the criteria. At the baseline examination, prevalence of myopia, emmetropia, and hyperopia was 39% (n = 187), 31% (n = 150), and 30% (n = 148), respectively. Spherical equivalent of Black children was not significantly different from that in Hispanic children (0.10 ± 2.92 vs. -0.37 ± 2.05 D, p=0.06); however, the Hispanic children had a significantly higher cylinder compared with Black children (Hispanic: 1.46 ± 1.57 D vs. Black: 0.92 ± 1.07 D; p<0.001). Both J0 (p<0.001) and J45 (p=0.01) were significantly different between two groups; the Hispanic children had more with-the-rule astigmatism and oblique astigmatism than the Black children. Prevalence of anisometropia (≥1 D) was higher in Black children (14%) compared with Hispanic children (5%, p=0.006). Over 36 months, spherical equivalent significantly decreased an average of 0.69 D (0.23 D/y, p<0.001) for both groups; neither astigmatism nor anisometropia changed significantly (p>0.05). Astigmatism in the Hispanic children was significantly higher than in Black children. However, the Black children had a higher prevalence and degree of anisometropia than the Hispanic children.