In the emergency rescue and disposal of social public emergencies, supply transportation effectively provides a strong supply foundation and realistic conditions. The trajectory tracking control of emergency supplies transportation robot is the key technology to ensure the timeliness of transportation. In this paper, the emergency supplies transportation robot is taken as the research object, based on Koopman operator theory, combined with radial basis function (RBF) neural network disturbance observer and adaptive prediction horizon event-triggered model predictive control (APET-MPC) algorithm to investigate the purely data-driven trajectory tracking control problem of emergency supplies transportation robot when the model parameters and models are unknown. Firstly, the Koopman operator is used to establish a high-dimensional linear model of the robot. Secondly, the RBF neural network disturbance observer is designed to estimate the disturbance during the robot operation and compensate it to the controller. Thirdly, APET-MPC is used to optimize the trajectory tracking control of the emergency supplies transportation robot to reduce computational complexity. Finally, the performance of the proposed trajectory tracking controller is verified by Carsim/ Simulink joint simulation. The simulation results show that the model established by Koopman operator theory can achieve the high accuracy approximation of the robot. Compared with the MPC trajectory tracking controller, the APET-MPC trajectory tracking controller based on RBF neural network disturbance observer (RBF-APET-MPC) improves the tracking accuracy of the robot and reduces the total triggering times of the system by more than 50%.

The velocity structure and turbulent characteristics of vegetated open channel flow were studied computationally using the computational fluid dynamics (CFD) code FLUENT to find logical distribution of vegetation in the flow to minimize flood disaster. A three-dimensional Reynolds stress turbulence model was first validated with the experimental data and then used for investigating properties of flow through vertically double-layered and discontinuous vegetation patches that occupy both sides of an open channel with different patch patterns— linear and staggered. Results indicate that the flow velocities within the gap zones are reduced by the sheltering effect of vegetation patches, which is observed to be significantly higher for the flow through staggered patch pattern than that through linear pattern. Flow velocities in non-vegetated main channel increased by 29 % and 36 % compared to that in vegetation sides of the channel—canopy and gap—for linear and staggered pattern, respectively. The findings indicate that the higher flow resistance on the channel’s vegetation sides in staggered pattern is balanced by the faster flow in the main channel, which could be utilized effectively during higher flows like floods over the floodplains. Moreover, velocity magnitude as well as fluctuations and turbulent kinetic energy (TKE) in vegetation sides are lower in flow through staggered pattern than that in linear pattern, which satisfies a better feature for aquatic life in staggered pattern. Thus, this arrangement of staggered vegetation patches can be used as an effective measure for flood mitigation as well as providing positive feedback for aquatic life and sediment deposition.

The process of integrating information from different sensory channels, known as multisensory integration (MSI) was assessed in two disorders, Autism Spectrum Disorder (ASD) and Schizophrenia (SCZ). 32 healthy controls (HC), 35 SCZ patients, and 23 ASD patients performed a synchronous target detection task using auditory (A), visual (V), and audiovisual (AV) stimuli, while reaction times (RT) and scalp recorded electrophysiological (EEG) activity were measured. MSI in the AV condition resulted in faster and less variable RTs compared to the unimodal conditions. Using a novel method to identify MSI gain in RT at the level of the individual subject, MSI gain was observed in 78% of HC, 26% of ASD, and 48% of SCZ patients. At the neural level, MSI in the AV condition resulted in larger amplitude of sensory evoked responses (N1 and P2 compared to the A condition, P1 and N2 compared to the V condition) and cognitive P3 response (compared to both unimodal conditions). These neural effects of MSI were not related to the behavioural MSI gain identified at the individual level. Furthermore, they could not explain the deficits in behavioural MSI of patient groups. In conclusion, a robust MSI gain deficit in RT was observed in both patient groups that was not reflected in early perceptual and cognitive electro-cortical responses, suggesting that behavioural MSI deficits in ASD and SCZ may arise at late processing stages such as response selection.

Background: Microbiome-targeted treatments have been investigated in atopic dermatitis (AD). We aimed to investigate the use of probiotic Lactococcus lactis lysate cream in AD. Methods: 13 patients with mild-to-moderate AD were treated with differently concentrated probiotic creams (3%, 10% and 30%) or placebo cream for 4 weeks. Disease severity (EASI, IGA), epidermal barrier function (TEWL) and patient-reported impact (DLQI, POEM, ADCT, pruritus and sleep disturbance VAS) were measured at baseline, 4 and 8 weeks. Comprehensive clinical data and laboratory values (blood eosinophil count, total serum IgE-levels and specific IgEs to aeroallergens) were obtained. Results: Comparison of the treatment groups showed no clear differences regarding AD severity (EASI, p=0.76, CI: 0.65-1.00), epidermal barrier dysfunction (TEWL, p=0.37, CI: 0.19-0.73) or patient-reported impact (DLQI, p=0.76, CI: 0.65-1.00; POEM, p=0.76, CI: 0.35-0.88; ADCT, p=0.72, CI: 0.65-1.00; pruritus VAS 0.67, CI: 0.55-1.00; sleep disturbance VAS, p=1.00, CI: 0.79-1.00) between different probiotic lysate concentrations and placebo. The probiotic lysate cream was well tolerated and there were no significant adverse effects. Limitations were a small and heterogenous patient groups and a relatively short follow-up with no evaluation of long-term effects. Conclusions: Topical probiotic L. lactis lysate cream showed no clear differences between the tratment groups in mild-to-moderate AD. Although topical probiotics have been reported effective in a limited number of studies, more placebo-controlled clinical studies are needed to explore their potential role in the treatment of AD.

A growing number of studies implicate functional brain networks in intelligence, but it is unclear if network nodal structure relates to intelligence. Using MRI, we studied the relationship of the general intelligence factor (g) with cortical thickness (CT), local gyrification index (LGI) and voxel-based morphometry in the nodes of the Default Mode Network (DMN) and Task-Positive Network (TPN) in a cohort of 44 young, healthy adults. Employing a novel strategy, we performed repeated analyses with multiple sets of g estimates to remove false positives. CT and LGI in medial and temporal nodes of the DMN were reliably correlated with g (P<0.05; r: 0.31-0.41). A linear regression model developed with these parameters (adj. R2: 0.15-0.40) could estimate individual g scores. Cortical thickness and gyrification in key nodes of the Default Mode Network correlate with intelligence and can estimate g in individual subjects.

A document by Juan Carlos Villarreal A.. Click on the document to view its contents.

Introduction: Gastrointestinal (GI) symptoms are common in individuals with Cystic Fibrosis (CF). International research has highlighted that GI care for this group of patients is lacking. Gastroenterology services to CF clinics across Australasia are yet to be examined. This study aimed to describe the current service delivery model and to identify areas for improvement that may lead to positive patient outcomes. Methods: CF clinicians (dietitians, clinical nurse consultants, respiratory consultants), gastroenterologists (GE), and patients or their carers from Australia and New Zealand (NZ) were surveyed online to gather their opinions on CF gastroenterology services provided in their region. Data were analysed using descriptive statistics (frequencies and percentages). Likert scale questions were analysed by grouping responses 1-5 and 6-10, presented alongside the median and interquartile range (IQR). Mann-Whitney U and chi-square tests were used to look at differences between stakeholder groups. Results: One hundred and fifty-seven health professionals and 172 patients or their carers completed the survey. Results showed that the current GI model of care is predominantly a publicly funded service delivered outside of CF clinic time. GE are largely not integrated into the CF team and report a lack of training opportunities. There is a higher level of dissatisfaction with the current service model in NZ than Australia. Discussion: No stakeholder group deemed the current CF gastroenterology service model as adequate, leaving opportunity for transformations in this field. Ideally the data from this study will invigorate the need for promotion and integration of GI services that would ultimately benefit the whole CF community.

The emergence of COVID-19 as a global pandemic has had far-reaching effects on the health of individuals worldwide. Although there has been a decrease in the severity of the disease, there is a growing concern about the long-term impact of COVID-19 on the health of individuals, particularly cardiovascular complications, known as Long-COVID, which can significantly increase morbidity and mortality rates in people recovering from COVID-19 in the recent past. The severity of COVID-19 has been linked to various factors, including the role of neutrophils and neutrophil extracellular traps (NET). These extracellular webs, composed of chromatin, microbicidal proteins, and oxidant enzymes, are released by neutrophils to fight infections. However, if not properly regulated, NETs can lead to thrombo-inflammatory states and microangiopathy in the body, resulting in complications such as sepsis, thrombosis, and respiratory failure. Understanding the detailed pathophysiology and association of NETs with the prognosis of COVID-19 infection is crucial for future implications and management. The purpose of this review is to analyze the potential contribution of NETosis in the pathophysiology of COVID-19 and its subsequent complications apart from its beneficial effect. This may provide insight into potential therapeutic interventions for COVID-19 patients.

Since wearing a mask creates respiratory difficulties, different ways of using masks have also emerged. Based on the problem of determining whether the mask is worn correctly, the study aims to determine four different mask-wearing status with machine learning models. A dataset was created, with four-class, that are “masked”, “unmasked”, “masked but under the chin”, and “masked but under the nose”. The dataset includes a total of 2000 images, with 500 images in each class. In order to classify the images, the first step is to extract their features. Within the scope of the study, feature extraction processes were performed through trained convolutional neural network (trained-CNN) models. These models are SqueezeNet, InceptionV3, VGG16 and VGG19. 16 different hybrid models have been proposed in order to perform classification processes with Artificial Neural Network, Logistic Regression, Support Vector Machine models created by using the features obtained from the above-mentioned models and the Stacking Model created by using these models. Out of the hybrid models, the InceptionV3 + ANN model achieved the highest classification accuracy of 91.1%. As a result of the study, a decision support system was proposed to determine the mask-wearing status.

Infectious diseases continue to pose a serious threat to human health as a result of the spread of antibiotic resistance, underscoring the urgent need for new and focused therapeutic approaches. Due to their regenerative and immunomodulatory capabilities, stem cells have emerged as a potential source for the development of antimicrobial therapies. This paper reviews the potential of stem cells as a targeted strategy for combating infections, focusing on their ability to differentiate into specific cell types that can directly target and eliminate microorganisms, as well as their capacity to modulate the immune response and enhance host defenses. The article discusses the challenges and opportunities associated with the clinical implementation of antimicrobial therapies derived from stem cells. Among these obstacles are the need for uniform protocols for cell isolation, expansion, and delivery, as well as the significance of rigorous evaluations of safety and efficacy. Given all relevant factors, it is our belief that the application of stem cells as a targeted antimicrobial approach holds significant potential for the development of effective and enduring therapeutic interventions for infectious diseases.

Among-individual variation in predator traits is ubiquitous in nature. However, the role of intraspecific trait variation in trophic dynamics has been seldom considered in community ecology. This has left unexplored a) to what degree does among-individual variation in predator traits regulate prey populations and b) to what degree do these effects vary spatially. We address these questions by examining how predator among-individual variation in functional traits shapes communities across habitats of varying structural complexity, in field conditions for the first time. We manipulated Chinese mantis (Tenodera sinensis) density and trait variability in experimental patches of old fields with varying habitat complexity and quantified the impacts on lower trophic levels, specifically prey and plant biomass. Our mantis groups thus contrasted in density (six or twelve individuals) and levels of variation in a key behavioral trait, activity level (movement on an open field). Our metric of habitat complexity was the density of plant material. In complex habitats and at high mantis densities, behaviorally variable groups decreased prey biomass by 35.1%, while at low densities, low levels of behavioral trait variability decreased arthropod biomass by 27.1%. Behavioral variability also changed prey community composition. Our results are among the first to demonstrate that among-individual trait variation can shape open species-rich prey communities. Further, these effects depend on both predator density and habitat complexity. Incorporating this important facet of ecological diversity revealed normally unnoticed effects of functional traits on the structure and function of food webs.

Top-down proteomics (TDP) directly analyzes intact proteins and thus provides more comprehensive qualitative and quantitative proteoform-level information than conventional bottom-up proteomics that relies on digested peptides and protein inference. While significant advancements have been made in TDP in sample preparation, separation, instrumentation, and data analysis, reliable and reproducible data analysis still remains one of the major bottlenecks in TDP. A key step for robust data analysis is the establishment of an objective estimation of proteoform-level false discovery rate (FDR) in proteoform identification. The most widely used FDR estimation scheme is based on the target-decoy approach (TDA), which has primarily been established for bottom-up proteomics. We present evidence that the TDA-based FDR estimation may not work at the proteoform-level due to an overlooked factor, namely the erroneous deconvolution of precursor masses, which leads to incorrect FDR estimation. We argue that the conventional TDA-based FDR in proteoform identification is in fact protein-level FDR rather than proteoform-level FDR unless precursor deconvolution error rate is taken into account. To address this issue, we propose a formula to correct for proteoform-level FDR bias by combining TDA-based FDR and precursor deconvolution error rate.

Haemophilus influenzae, a gram-negative, facultative anaerobic coccobacillus, is a member of Pasteurellaceae family. It causes a variety of invasive and non-invasive bacterial infections known as H. influenzae infections. The rise in antibiotic resistance alarms for the identification of novel therapeutic targets for treating H. influenzae infections. The emerging trends in the field of Pharmacoinformatics have aided in the prediction of novel putative therapeutic targets. Subtractive Genomics is a simple yet powerful approach for the identification of novel therapeutic targets for a bacterial pathogen. The purpose of the current study is to identify novel putative therapeutic targets for the treatment of H. influenzae infections. In this study, the core proteome of 72 strains of H. influenzae was analysed, and 115 proteins were found to be unique and non-homologous to the human proteome. Further screening of these proteins led to identification of 25 proteins involved in the 29 unique metabolic pathways of bacteria. We have identified five novel putative therapeutic targets for H. influenzae bacteria that are unique, non-homologous to the human proteome, essential for the bacterial survival, and involved in the unique metabolic pathways of bacteria.

In this paper, the propagation rate of the cracks at different grain sizes with different grain boundary (GB) angles have been simulated. During loading, the crack tip (CT) emits dislocations, which are distributed on the slip plane (SP) in front of the crack, and may accumulate at the GB, during which the crack expands forward. If the conditions are met during unloading, the dislocations will rebound. Dislocation annihilation will occur when distance of dislocation emitting is less than the distance of dislocation rebound. The annihilation of the dislocations have an impact on the next loading. The calculation results show that the crack propagation rate (CPR) is related to both the grain size and the angle of the GB. The CPR increases in larger crystals and in larger angle GBs. And the number of annihilation dislocations and the number and distribution of existing dislocations will obviously affect the next loading step.

Protracted Complete Response After Limited Checkpoint Inhibitor Dosing: A Case ReportAuthors:Dr. Quinne Sember, MD Scripps HealthDr. Darren Sigal, MD Scripps HealthAcknowledgements: NoneManuscript has not been presentedNo disclaimers and no conflicts of interest.Consent statement:Written informed consent was obtained from the patient to publish this report in accordance with the journal’s patient consent policyCorresponding author:Quinne Sember, MD10710 North Torrey Pines Rd.La Jolla, CA 92037Phone: 716-574-6335Email: quinne@sember.netTwitter: @SemberQuinne

Ferulic acid, as a common polyphenol in Chinese herbal medicine, is widely found in rice, vegetables and fruits. It has important antioxidant effects and has an effect in a variety of diseases. However, the mechanism of its antioxidant function is very complex, including regulation of pro-inflammatory factors, scavenging free radicals and inhibition of lipid peroxidation. The signaling pathway of ferulic acid in exerting its antioxidant effect has not been fully found. Recent studies have found that ferulic acid has a very important potential application value in the treatment of ophthalmic diseases, including glaucoma, cataract, age-related macular degeneration, etc. This paper reviews the effects and referring signaling pathway of ferulic acid in eye diseases and conclude the potential signal pathways of ferulic acid in order to provide new ideas for traditional Chinese medicine in the treatment of eye diseases.

Acute chest syndrome (ACS) is a common lung complication associated with high morbidity and mortality in children with sickle cell disease. The role of fine particulate matter (PM 2.5) exposure in admissions for ACS is limited. We assessed residential level PM 2.5 exposure in a case-crossover study of 503 patients admitted to Texas Children’s Hospital between 2010 and 2019 in Houston, TX. We examined whether short-term PM 2.5 exposure is associated with increased odds of hospitalizations for ACS and found no association between PM 2.5 exposures in the week proceeding an ACS-related admission. However, larger studies are needed to confirm or refute this finding.

LETTER TO THE EDITOR

In this letter, In this letter, an n-level inverter possessing buck/boost capability is introduced wherein only five power electronic switches are employed for obtaining a multilevel waveform. In the proposed system, a dc source (obtained from a battery/PV source/fuel cell/rectifier) is bucked/boosted using a buck-boost dc-dc converter), thus having the advantage of both voltage step-up and step-down capabilities. The polarity reversal for step-up/step-down voltage is obtained using an H-bridge topology. MATLAB SIMULINK and a hardware prototype is used to validate the concept and results.

Objective: To describe a suggested version of the Clavien-Dindo morbidity classification specific to obstetrics and employ it to build a cumulative morbidity score which fully reflects the ‘patient experience’. To demonstrate the utility of this novel system in a cohort of women with Placenta Accreta Spectrum (PAS).   Design: Delphi consensus and retrospective application of the resulting scores to morbidity from PAS surgery.   Setting: UK Tertiary referral centre for PAS.   Population: Women who had caesarean hysterectomy for PAS.   Methods: The Clavien-Dindo classification was modified to reflect obstetric procedures and a quantitative morbidity measure, the Soleymani and Collins Obstetric Morbidity Score (SaCOMS), was developed based on this. Both were then validated using a Delphi consensus of experts in PAS and retrospectively applied to a cohort of 54 women with PAS.   Main Outcome measures: Delphi consensus of >80%, binary outcome of adverse event or not and quantitative values from the SaCOMS.   Results: Clinicians with expertise in PAS believe that the Modified Obstetric Clavien-Dindo classification system and the novel SaCOMS tool can improve assessment of maternal morbidity, and better reflect the ‘patient experience’. Application to the PAS cohort demonstrates that surgery by gynae-oncological surgeons may be associated with decreased incidence and cumulative morbidity outcomes for women with PAS, especially those with the most severe presentation.     Conclusions: This study presents a clinically useful obstetric-specific classification system for surgical morbidity. SaCOMS also provides a quantitative reflection of the full patient- journey experienced as a result of surgical complications enabling a more patient-centred representation of morbidity.

A document by Manish Kharel. Click on the document to view its contents.

Introduction: We aimed to evaluate cardiovascular risks and influencing factors by measuring aortic elasticity parameters and carotid intima thickness in children with cronic renal failure (CRF), and also evaluated the hydration status of patients with Bioimpedance spectroscopy (BIS) measurements and investigated the effect of hydration status on vascular functions. Metods: The study group consisted of 38 patients with CRF, their ages between 6 to 20 years (mean ± SD= 13.34 ± 3.74), of which 16 were girls and 22 were boys. The control group, which consisted of 31 healthy children between 7 and 16.5 years of age (mean ± SD= 12.1± 2.92), 16 girls and 15 boys). Left ventricular end-diastolic, end-systolic, left atrial diameters, interventricular septum, and left ventricular posterior wall thickness were measured. Systolic and diastolic diameters of the aortic annulus and aorta at each level were obtained; z-scores, aortic strain, distensibility, stiffness index were calculated. Carotid intima-media thickness and flow- mediated dilatation were studied. Bioimpedance spectroscopy was performed to all patients. Results: Interventricular septum and left atrial (p=0,002, p=0,013), sinus valsalva and sinotubular junction z scores (p=0,009, p=0,012) were found to be higher and distensibility and strain decreased, stiffness index increased in the abdominal aorta of patients with CRF (p=0,007, p=0,002, p=0,004). Patients with CRF had statistically significant over-hydration. Conclusion: Vascular wall changes that affect the elastic properties of the aortic wall begin to develop in childhood in patients with CRF. This is related to the severity of the disease and the patient’s hydration status.

Background The purpose of the study was to determine the association between vena contracta area (VCA) and secondary leaflet tethering among mitral valve prolapse (MVP) patients, and thus to further identify and characterize an MVP with pathological leaflet tethering (MVPt+) phenotype. Methods We prospectively evaluated 94 consecutive MVP patients with significant mitral regurgitation (MR) and 20 healthy controls. MVPt+ group was defined as tenting volume index (TVi) > 0.7 ml/m 2. The three-dimensional (3D) geometry of mitral valve apparatus and VCA was measured with dedicated quantification software. Results Of the 94 patients with MVP and significant MR, 31 patients showed a TVi > 0.7 ml/m 2 and entered the MVP with leaflet tethering (MVPt+) group. In stepwise multivariate analysis, only prolapse volume index and TVi was independently associated with 3D VCA. Apart from marked left ventricular and annular enlargement, MVPt+ group presented significantly higher frequency of leaflet flail, greater VCA, elevated plasma levels of NT-proBNP and sPAP. ROC curve revealed that occurrence of leaflet tethering is associated with a VCA ≥0.55 cm 2 in MVP patients. Conclusions Secondary leaflet tethering is a significant mechanism behind severe degenerative mitral regurgitation, resulting an MVPt+ phenotype featuring more advanced morphological and hemodynamical characteristics .

Letter to the editor regarding the paper ”Rare tapeworm segments case report and review of literature”Michele CalatriUniversity of Cagliari – Faculty of Medicine mcalatri@gmail.comDear Editor,My initial enthusiasm was born from the premise of reading about an uncommon species of human parasite in the article “Rare tapeworm segments case report and review of literature” by Ahmed Ali Gaffer11Gaffer A. Rare tapeworm segments case report and review of literature. Clinical Case Reports . 2023;11(4). doi:https://doi.org/10.1002/ccr3.7167, which has given way first to confusion and then to a sincere disappointment, due to the many mistakes, inaccuracies, and misspellings which unfortunately result in a chaotic and inconclusive report.First, it should be noted that in most of his manuscript, the author makes incorrect use of the terms ”cestode” and ”trematode” as if they were interchangeable. As it is known, cestodes and trematodes belong to two different classes, Cestoda and Trematoda, within the phylum Platyhelminthes. These two groups of parasitic flatworms, while sharing some similarities (e.g. bilateral symmetry and the lack of a body cavity) by having a common ancestor, count many different morphological characteristics such that the two cannot be easily confused. In particular, the head or more properly ”scolex”, neck, and the ribbon-like segmented body (strobila) composed of segments called proglottids, in addition to the lack of a mouth and digestive tract, are all external peculiarities of adult cestodes, while adult trematodes typically have an anterior mouth, organs of attachment or ”suckers” and an unsegmented leaf-shaped body22Bogitsh BJ, Carter CE, Oeltmann TN. Human Parasitology . Academic Press, An Imprint Of Elsevier; 2019.. Having said that, it seems that the observed parasite would belong to Cestoda rather than Trematoda, assuming it is a parasite.The second major problem in the report is the total lack of the minimum morphological features that are usually required for the identification of a cestode. The image attached has a very poor resolution quality, the micrometer bar is absent and the author admits that eggs have not been detected in the observed specimen. The presumed scolex, an organ whose dimensions and morphologies often represent critical keys in classifying Cestoda genera and species33Khalil LF, Jones A, Rodney Alan Bray, C.A.B. International. Keys to the Cestode Parasites of Vertebrates . Cab International; 1994., lacks any useful detail. Inside each “triangular-shaped” segment it is honestly difficult to understand how it was possible to identify a uterus just from an amorphous central mass and consequently to count the individual ”uterine branches” of the hypothetical tapeworm. It should be remarked that this is an act that would usually require the injection of India ink through a lateral genital pore, another useful point of reference, not observed in the image provided44CDC. CDC - DPDx - Taeniasis. www.cdc.gov. Published January 22, 2019.https://www.cdc.gov/dpdx/taeniasis/index.html. Here the doubt is that the author has confused the uterine branches with the segments of the elements he observed, which - if it were a cestode - should instead be its proglottids (!).The scenario described so far becomes even more entangled in the final reflections when the author hypothesizes that we are dealing with an infective larval stage, expressing concern about the risk that the parasite “is ready to become adult worm”. In Cestoda, the larval forms, known as metacestodes, are quite different from the adult tapeworms, even because they lack of reproductive organs contained in the proglottids.To provide a minimum of clarity, perhaps it is necessary to briefly recall the biological cycle of a human cestode. In most cases, it involves two hosts: embryos develop into metacestodes in an intermediate host; metacestodes mature into adult worms in a definitive host. Humans can serve as both intermediate and definitive hosts.The intermediate host usually becomes infected after ingesting food or water contaminated with the parasite’s eggs. Once in the intestine, the eggs hatch releasing oncospheres that penetrate the intestinal walls, pass to the mesenteric capillaries, and from there to the bloodstream, through which they can reach various tissues (muscle, liver, lung, brain, bone), encyst and develop in metacestodes.The clinical spectrum of metacestode infections varies from asymptomatic to life-threatening conditions, essentially depending on the site of encystment. Given the parasitized sites, the approach to these infections is usually represented by imaging techniques, serology, and molecular diagnostics, the optical microscopy is useful only when the parasite is observed in biopsy specimens for histological examination55Lynne Shore Garcia. Diagnostic Medical Parasitology . Washington Asm Press; 2016..Examples of human metacestodiasis are cysticercosis, echinococcosis, and sparganosis, caused – respectively - by metacestodes of Taenia solium, Echinococcus spp., and Spirometra spp.The definitive host becomes infected if it consumes raw (or undercooked) meat containing the larval forms. Inside the intestine of the new host the metacestodes evert their scoleces through which they tenaciously attach themselves to the intestinal wall and, in a few months, they develop in adult worms, with the production of proglottids, a process known as strobilation.Those caused by adult cestodes are among the most common intestinal infections worldwide, afflicting millions of people, especially in developing countries. The symptoms are usually mild and non-specific and they can be diagnosed by the identification of eggs or proglottids in stool, a few months after the infection.Examples of human cestodiases are taeniasis, dibothriocephaliasis, and hymenolepiasis, caused by the adult tapeworm of Taenia spp., Dibotriocephalus spp., and Hymenolepis spp.However, this whole premise would seem to have been ignored by the author who, all along the manuscript, describes what he considers to be a parasite as it would be an adult tapeworm but - inexplicably - he comes to the conclusion that it is a larval form(!).For all the reasons described above, any comparative work with already described cestode species is also particularly difficult, if not impossible.Cases of rare or uncommon cestodiasis in humans have sometimes been described, such as in the case of infections by adults anoplocephalids of the genera Mathevotaenia66Lamom C, Greer GJ. Human Infection with an Anoplocephalid Tapeworm of the Genus Mathevotaenia. The American Journal of Tropical Medicine and Hygiene . 1986;35(4):824-826. doi:https://doi.org/10.4269/ajtmh.1986.35.824, Bertiella, Inermicapsifer, and Moniezia, by davaineids of the genus Raillitiella and Metacestoides77Sapp SGH, Bradbury RS. The forgotten exotic tapeworms: a review of uncommon zoonotic Cyclophyllidea. Parasitology. 2020;147(5):533-558. doi:https://doi.org/10.1017/S003118202000013X, but none of the above have similar features to those reported by the author. Not even among non-cyclophyllid cestodes, such as diphyllobothrids, can morphological similarities be found with the proposed case. Some of the infections with juvenile aberrant cestodes have been described in the literature, but no similarities can be found with these either88Garin F, Maria Teresa Galán-Puchades, Moulignier A, et al. Human brain abscess due to a tetra-acetabulate plerocercoid metacestode (Cyclophyllidea). American Journal of Tropical Medicine and Hygiene. Published online May 1, 2005. doi:https://doi.org/10.4269/ajtmh.2005.72.513.So, ultimately, are the elements in the picture cestodes and did they cause this patient’s clinical manifestations?As I have tried to stress, while it is certainly possible to rule out the grounds that we are dealing with a ”rare tapeworm”, without more data or better images, it is not possible to comment further on the true nature of the elements found by the author, although similarities with the material of plant or fungal origin are certainly evident (spines? Trichomes? Spores?). Given the eating habits of the young patient, it is also possible that there is another type of parasite, not observed by the author, behind the reported symptoms or that another type of pathogen is responsible, maybe a virus or a bacteria.To finish, although new technologies, such as the genetic tests called upon to help by the author, can certainly make an important contribution to today’s parasitological diagnostics, it should be remembered that their role must be to accompany and integrate the morphological identification of parasites by optical microscopy and not to replace it. The risk, is that basic skills in morphological identification under the light microscope are lost, which would paradoxically lead, among other things, to failure to detect precisely those species that are rare or entirely new in human pathology99Bradbury RS, Sapp SGH, Potters I, et al. Where Have All the Diagnostic Morphological Parasitologists Gone? Humphries RM, ed. Journal of Clinical Microbiology. 2022;60(11). doi:https://doi.org/10.1128/jcm.00986-22.