IgG4-related disease (IgG4-RD) is a chronic inflammatory mediated by an immune response characterized by dense lymphoplasmacytic infiltrate, IgG4 positive plasmocytes in the affected tissue. In this case, we describe a patient who presented pericarditis with hemodynamic instability. Reporting of atypical presentations is necessary for broadening clinical recognition of similar cases.

Objectives: Short-term outcomes for those with a prolonged length of stay (LOS) in intensive care (ITU) following cardiac surgery are poor, with higher rates of in-hospital mortality and morbidity. Consequently, discharge from hospital has been considered the key measure of success. However, there has been a shift towards long-term outcomes, functional recovery and quality of life (QoL) as measures of surgical quality. The aim of this review is to compare and critique the findings of multiple studies in order to determine the long-term effects of prolonged ITU stay post-cardiac surgery. Methods: A computerised literature search of CINAHL, EMBASE and Google Scholar databases, based on keywords ‘long-term effects’; ‘prolonged ITU stay’; ‘cardiac surgery’, with rigorous CASP critique, was undertaken. Results: The search yielded 12 papers meeting the inclusion criteria, with eight retrospective and four prospective studies. Eight of these 12 papers identified inferior long-term survival or higher mortality rates for those who had prolonged LOS in ITU in comparison to ‘normal’ LOS or a control. The greatest burden of mortality was six months to one year post-discharge. Three papers found that quality of life was adversely affected or worse for those who had experienced prolonged LOS in ITU. Conclusions: Further research is required to provide better quality evidence into QoL, following prolonged stay in ICU post cardiac surgery. The evidence reviewed suggests that the risk of mortality in this demographic of patients is higher, especially within the first year and, therefore, more frequent medical surveillance of these patients is recommended.

A 31 year old man with a past medical history of hyperthyroidism presented to the hospital in thyroid storm and cardiogenic shock. He was found to be in severe biventricular failure and with the use of biventricular impella support had a full recovery without significant comorbidity.

Photosynthesis is especially sensitive to environmental conditions and the composition of the photosynthetic apparatus can be modulated in response to environmental change, a process termed photosynthetic acclimation. Previously, we identified a role for a cytosolic fumarase, FUM2 in acclimation to low temperature in Arabidopsis thaliana. Mutant lines lacking FUM2 were unable to acclimate their photosynthetic apparatus to cold. Here, using gas exchange measurements and metabolite assays of acclimating and non-acclimating plants, we show that acclimation to low temperature results in a change in the distribution of photosynthetically fixed carbon to different storage pools during the day. Proteomic analysis of wild-type Col-0 Arabidopsis and of a fum2 mutant which was unable to acclimate to cold indicates that extensive changes occurring in response to cold are affected in the mutant. Metabolic and proteomic data were used to parameterise metabolic models. Using an approach called flux sampling, we show how the relative export of triose phosphate and 3-phsphoglycerate provides a signal of the chloroplast redox state that could underly photosynthetic acclimation to cold.

We present the extremely rare case of a circumflex artery aneurysm with an arteriovenous fistula to the coronary venous sinus in a 20-year-old male patient, requiring surgical management due to the clinical presentation of this unusual condition.

To investigate the epidemic profile and genetic diversity of porcine bocavirus (PBoV), 281 clinical samples including 236 intestinal tissue samples and 45 fecal samples were collected from diarrheal piglets in 37 different pig farms of central China, and two SYBR Green I-based quantitative PCR assays were developed to detect PBoV1/2 and PBoV3/4/5 respectively. The results showed the detection limits of two assays were 1.66 × 101 genome copies/μl of PBoV1/2 and 3.3 × 101 copies/µL of PBoV 3/4/5. 148 (52.67%) of the 281 clinical samples were positive for PBoV1/2, 117 (41.63%) were positive for PBoV3/4/5, 55 (19.57%) were positive for both PBoV1/2 and PBoV3/4/5, and 86.49% (32/37) of the pig farms were positive for PBoV. Subsequently, complete genomic sequences of two PBoV strains (designated CH/HNZM and PBoV-TY) from two different farms were sequenced. The phylogenetic analysis demonstrated that the two PBoV strains obtained in this study belonged to the PBoV2 group and had a close relationship with other 12 PBoV2 strains, but differed genetically from PBoV1, PBoV3/4/5 and 7 other bocaviruses. CH/HNZM and PBoV-TY were closely related to the PBoV strain GD18 (KJ755666) which may be derived from PBoV strains 0912/2012 (MH558677) and 57AT-HU (KF206160) through the recombination analysis. Compared with reference strain ZJD (HM053694)-China, a higher amino acid variation was found in the NS1 protein of CH/HNZM and PBoV-TY. These results extend our understanding of the molecular epidemiology and evolution of PBoV.

Each seed phenotypic trait may be influenced by its metabolite composition which varies during seed development and -maturation. Therefore, the metabolic components of dry seeds may represent the maternal environment under which seeds developed and matured. The natural variation of seed metabolite composition has been previously studied and several QTLs were detected regulating this variation. Here a generalized genetical genomics (GGG) approach was used for the metabolic analysis of a recombinant inbred (RIL) population obtained from a cross between two tomato species: Solanum lycopersicum and Solanum pimpinellifolium. The RILs and parental lines were grown in two maternal environments: high phosphate and low nitrate nutrition. A correlation analysis of metabolite composition and seed phenotypic traits indicated several relations between metabolite contents and seed quality traits such as seed size, seed weight and seed germination percentage. Seed size and -weight exhibited a positive correlation with several amino acids and some intermediates of the TCA cycle, such as succinate, citrate and malate. By performing metabolic correlation analysis and also generating metabolite networks and combining these with QTL analysis, several relevant mQTLs were identified. We showed that dry seed metabolites and QTLs regulating them are modulated by genetic factors, maternal environment and their interaction.

Experimentally (G. Mlostoń et al., J. Fluor. Chem. 190 (2016) 56–60), it has been found that the type of the obtained cycloadduct of the [3+2] cycloaddition (32CA) reaction of thiocarbonyl S-methanides with α,β-unsaturated ketones depends strongly on the location of the trifluoromethyl group. In the case of enones containing the CF3CH=CH moiety, the 32CA reaction occurs chemo- and regioselectively onto the C=C double bond giving trifluoromethylated tetrahydrothiophene derivatives. On the other hand, enones containing the CF3–C=O fragment react as carbonyl heteroethylenes leading to trifluoromethylated 1,3-oxathiolanes also in a chemo- and regioselective manner. Our aim in the present work is to perform a theoretical study of the all chemo-, regio-, and stereo-isomeric reaction paths of these 32CA reactions within the Molecular Electron Density Theory. Activation Gibbs free energies, calculated at the B3LYP/6-311G(d,p) level in tetrahydrofurane at -40°C, show that the ortho/endo reaction path giving the trifluoromethylated tetrahydrothiophene is more favoured, while the meta/endo reaction path leading to trifluoromethylated 1,3-oxathiolanes is more preferred in total agreement with experimental findings. The low activation barriers in combination of the Electron Localization Function topological analysis of the most relevant points along the Intrinsic Reaction Coordinate reveals the pseudomonoradical character of the studied 32CA reactions.

Tweetable abstractPrenatal WES has the potential to improve the clinical management of pregnancies and provide risk of recurrence in future pregnancies.Keywords : whole exome sequencing, prenatal diagnosis, fetal structural anomaly, genetic variants

Harvesting of microalgae is essentially the most energy intensive process in commercial algal culture ventures. Developing innovative, cost effective harvesting systems is of paramount need for commercial algal culture ventures. The study thus aimed at investigating the use of eco-friendly Solar Powered Electroflocculation (SPEF) coupled with battery for harvesting marine microalgae using aluminium electrodes. Optimization of various operating parameters like initial algal density, time of operation (5, 10, 15 and 30 min), (initial biomass concentration 0.1, 0.5 and 1.0 gL-1) and electrode distance (35, 55, 75 and 95 cms) were done using direct current (D.C). Best flocculation efficiency (91.31 ± 2.91 %) was obtained using a current density of 37.2 Acm-2, a voltage of 24 V for 15 min at an electrode distance of 95 cm and pH 8.0. The quality of the harvested biomass was ascertained in-terms of biochemical components using Fourier Transform Infrared spectroscopy, total lipid and pigment profile. Due to the low resistance of seawater the energy required for electroflocculation was as low as 0.223 kWh/ton. The energy requirement for the electroflocculation system with or without solar power was also predicted. The results revealed SPEF can be developed as a potential alternative marine microalgal harvesting system for nutraceutical coupled biodiesel production.

Objective: To elucidate the correlation between sleep disturbances and blood pressure during pregnancy in women with no pre-existing hypertension. Design: Prospective cohort study. Setting: Outpatient specialist clinics at KK Women’s and Children’s Hospital, Singapore. Population: Women with viable singleton pregnancies confirmed by ultrasonography at less than 14 weeks of amenorrhea at first visit. Methods: 926 subjects were recruited for this study in the outpatient specialist clinics at KK Women’s and Children’s Hospital, Singapore, between September 1, 2010, and August 31, 2014. They were followed up throughout pregnancy with sleep quality, blood pressure and uterine artery doppler assessed at each visit. Main outcome measures: sleep quality, blood pressure and uterine artery doppler. Results: Sleep progressively worsened as pregnancy advances. Shorter sleep duration and poorer sleep efficiency were associated with higher blood pressure, especially in the first trimester. Mixed model analysis demonstrated overall positive correlation between sleep quality represented by Pittsburgh Sleep Quality Index (PSQI) score and diastolic blood pressure (DBP) (p<0.001) and mean arterial pressure (MAP) (p=0.005) during pregnancy after considering all trimesters. Sleep duration was found to be negatively correlated with both systolic blood pressure (SBP) (p=0.029) and DBP (p=0.002) while sleep efficiency is negatively correlated with DBP (p=0.002) only. Overall poor sleep during pregnancy was also found to be correlated to higher uterine artery pulsatility index. Conclusion: Our prospective study demonstrated that sleep quality is significantly correlated with blood pressure during pregnancy with most prominent effect in the first trimester.

Human linguatulosis is a considerable medical problem in endemic regions. The infection is caused by a cosmopolitanfood-borne zoonoticparasiteLinguatula serrata (L. serrata) belonging to class pentastomida.Adult parasitesreside in upper respiratory system, nasal airways and sinuses of carnivorous animals as their final hosts.Herbivorous and other ruminants as intermediate hosts reserve immatureform of parasite in mesenteric lymph nodes, liver, lungs and spleen. Human get infection with both adult and nymph stages of parasite.Halzoun syndrome(Marrara syndrome) is the most common form of human nasopharyngeal linguatulosis which is transmitted through ingestion of L. serrata nymphs (adult stage) found in intermediate host’s organs and resulting in nasopharyngeal linguatulosis with signs of pharyngitis, salivation, dysphagia, and cough.r. This review includes previous studies on L. serrata conducted in Iran and other countries from 1940 to 2019. A systematic search is undertaken on five English and five Persian databases for English or Persian publications describing human linguatulosiscases in the world .Totally, 30 papers reporting 62human linguatulosiscases from various regions of the world are included in this review.All included papers were from the English databases. The age of patients ranged from 8 to 79 years, and the mean age was 25.8 years. Of all the patients, 41(66.1%) were female and 21(33.9%)were male. The highest number of cases (n = 25) was reported from Sudan.The nasopharynxwas the most commonly reported anatomical location of human linguatulosis cases.As a result, we think that physicians should consider L. serratainfestation in patients attending to the health foundations with complaintssuch as pharyngitis, accompanied by pharyngeal pain,coughing, sneezing and vomiting.

Rotaviruses (RVs) are a major cause of viral gastroenteritis in both animals and humans worldwide. According to the molecular and serological properties of Viral Protein 6 (VP6), RVs are classified into nine species or groups (RVA-RVD and RVF-RVJ). RVA, RVB and RVC are well-recognized as etiological agents of enteric disease on swine farms and have been identified in all countries with a relevant pork production. Contrarily, RVH has only been identified on swine farms from Japan and more recently from Brazil, USA, South Africa and Vietnam but not yet in Europe. The occurrence of RVH was investigated in 103 Spanish pig herds. Nine farms were positive and the complete nucleotide sequences were achieved for four RVH isolates. Mean nucleotide identities with the RVH sequences available in GenBak ranged between 69.4 and 93.7 %. Phylogenetically, all genomic segments of Spanish RVH isolates clustered closely with other porcine RVH strains but were distantly related to human RVH as well as bat RVH strain. Moreover, based on the available tentative genotyping system for RVH, a new genotype for VP7 was proposed. To the best of our knowledge this is the first report of RVH on swine farms in Europe including its characterization by means of complete genome sequencing.

Background: Surgical management of deep endometriosis infiltrating pelvic nerves may allow an overall improvement in pain and neurologic disorders. Objective: To assess 1-year postoperative outcomes of surgery for deep endometriosis involving sacral roots and the sciatic nerve. Study Design: Retrospective study including 52 women undergoing surgery for deep endometriosis involving sacral roots and the sciatic nerve. We assessed 1-year postoperative outcomes. Results: Deep endometriosis involved sacral roots in 49 women (94.2%) and the sciatic nerve in 3 cases (5.8%). Sciatic pain was recorded in 43 women (82.7%), pudendal neuralgia in 11 women (21.2%) and leg motor weakness in 14 cases (27%). Surgical procedures carried out on pelvic nerves included complete releasing and decompression (92.3%), excision of epineurium (5.8%) and intraneural excision (1.9%). Additional procedures involved the digestive tract in 82.7% of cases and the urinary tract in 46.2%. Rectovaginal fistula occurred in 13.5% of cases. Self-catheterisation was required in 14 cases (27%) at 3 weeks after surgery, and in only 3 women (5.8%) 12 months later. One-year follow up showed significant improvement in quality of life using SF36 and standardised gastrointestinal scores. De novo hypoesthesia, hyperaesthesia or allodynia were recorded in 9 women (17.2%). The cumulative pregnancy rate was 77.2% following natural conception in 47%. Conclusions: Laparoscopic management of deep endometriosis involving sacral roots and the sciatic nerve improves patient symptoms and overall quality of life. Although pain reduction may be rapid following surgery, other sensory or motor complaints including bladder dysfunction may be recorded over months or years.

Objective: To evaluate the prevalence of dysmenorrhea in adolescents and its impact on daily living. Design: A cross-sectional, questionnaire-based study Setting: Multicenter study in eight randomly selected high schools in France. Population: Randomly selected post-menarche girl pupils 15 –19 years Methods: Each girl was asked to complete a 50-item questionnaire. Main Outcome Measures: Dysmenorrhea severity was assessed with the Numerical Rating Scale (NRS) and Verbal Multidimensional Scoring System Scale (VMSS). Results: Questionnaires from 953 girls were analyzed (mean age: 16.9 years). The prevalence of dysmenorrhea was 92.9 % with 8.9 % describing their pain as severe. Impact on quality of life was significant: 43.3% of the girls reported school absences because of dysmenorrhea, 74.9% difficulties in attending classes and 77.2% difficulties in sports activities. Risk factors of severe dysmenorrhea (VMSS grade 3) in multivariate analysis were heavy menstrual bleeding (OR 2.02, 95%CI [1.12 ; 3.63] p=0.0192), early menarche (OR 0.68, 95%CI [0.57 ; 0.81] p<0.0001), chronic pelvic pain (OR 2.60, 95%CI [1.10 ; 6.11] p=0.0274), BMI (BMI<18, OR 1.94, 95%CI [1.03 ; 3.66] p=0.0335). Of the 50.4% who had consulted a physician, 45.4% had seen a general practitioner. Among the girls who had not consulted a physician, 55.1% reported that menstruation was a “woman’s burden”. Conclusion: Dysmenorrhea is highly prevalent in adolescents in France and has a real impact on daily life activities. As such, it should be treated as a public health problem with educational and information campaigns targeting the girls themselves, their families and healthcare professionals.

Abstract Objectives This study aimed to investigate the characteristics of obstetrics and gynecology (OG) core outcome sets (COSs) and assess the report and design standards of OG COSs, and exploring how to improve baseline standards for obstetrics and gynecology COSs development. Study Design and Setting We conducted a comprehensive search of COMET database on December 20, 2019. Two reviewers independently evaluated whether the OG COS met the reporting requirement as stipulated in the Core Outcome Set-STAndards for Reporting (COS-STAR) statement checklist and the minimum design recommendations using the Core Outcome Set-STAndards for Development (COS-STAD) checklist. Results Forty-four OG COSs focused on 26 topics. None met all the 25 standards of COS-STAR statement representing 18 items considered essential for transparent and complete reporting in all COS studies (range: 6.0-24.0, median: 14.0 ). The compliance rates for the 16 standards of methods and result sections ranged from 27.3% - 68.2%. Total COS-STAR compliance items of OG COSs with the prior protocol was significantly higher than without prior protocol (MD= 3.846, 95% CI: 0.835 - 6.858, P= 0.012). None of the OG COSs met all the 12 criteria of COS-STAD minimum standards (range: 3.0-11.0, median: 5.0). The compliance rates for all three standards of stakeholders involved and all four standards of the consensus process were lower than 60%. Conclusion Methodological and reporting standards of OG COSs should be further improved.

Background: Anaphylaxis has been increasing in developed countries but there is very little published data on the burden of anaphylaxis and the pattern of adrenaline autoinjector (AAI) prescription from Asia. Objectives: We aim to determine the incidence rates of anaphylaxis and prescription rates of AAI over the past decade in Hong Kong. Methods: Using a centralized electronic database of Hong Kong’s sole public-funded healthcare provider, we obtained and analysed all patients between 2009 and 2019 with physician-reported diagnosis of anaphylaxis. Incidence rates were calculated using population statistics as the denominator. Patients’ prescriptions on discharge were collected to determine the AAI prescription rates. Results: The overall 10-year estimated incidence rate of anaphylaxis was 3.57 per 100,000 person-years. An increasing trend over time across both pediatric and adult populations from 2009 to 2019 was found which was more marked among the pediatric population. There was an overall increasing rates of AAI prescription for patients admitted for anaphylaxis, but the overall AAI prescription rate was less than 15% and was significantly less likely to be prescribed for the adult compared to pediatric patients (36.5% vs. 89.4%, p<0.001). Conclusions: An increasing trend of anaphylaxis incidence rates over the past decade is evident in Asian populations, with a discrepantly low rate of AAI prescription, particularly in the adult patients.

Typically, the Crack Tip Opening Displacement (CTOD) is used only to quantify the crack closure phenomenon. However, more information about crack tip phenomena can be extracted from the CTOD curves, which can be used for a better understanding of fatigue crack growth. The main objective here is the development of a numerical tool for the automatic analysis of CTOD plots, which can be obtained either numerically using the Finite Element Method (FEM) or experimentally using Digital Image Correlation (DIC). The parameters extracted are the elastic and plastic CTOD in loading and unloading regimes, the corresponding load ranges, the crack opening and closure levels and the dissipated energy. This tool is expected to promote a fast and efficient analysis of DIC and FEM results, facilitating the implementation of CTOD analysis in the fatigue community.

Background Due to profound morbidity and a high rate of mortality in patients with acute respiratory distress syndrome (ARDS), identification of potential biomarkers such as nitric oxide (NO) is important to determine prognosis and guide clinical decision‐making. Methods and results: In this study, we included twenty-nine patients admitted to the Medical Intensive Care Unit diagnosed with ARDS caused by influenza A (H1N1) whose serum samples were collected on day 1 for determination of NO levels by GRIESS method. Simplified Acute Physiology Score (SAPS II) and Acute Physiology and Chronic Health Evaluation II (APACHE II) scoring were performed on day 1 as well. The mortality in the observed patients was 55%. SAPS II and APACHE II scores were significantly higher (p < 0.05) in non-survivors as compared to survivors. There were no significant differences in gender, age, cigarette smoking and chronic pulmonary diseases between the survivors and non-survivors. As compared to non-survivors, the serum levels of NO were significantly higher in survivors (p < 0.05). Spearman’s rank correlation analysis indicated a significant positive correlation of SAPS II and APACHE II with NO. By using serum levels of NO, the receiver operating characteristic curve was plotted and the provided predictable accuracy of mortality (outcome) was 96%. Conclusion: The present study showed that measuring serum levels of NO in patients with ARDS (influenza A-H1N1) might be useful in predicting the clinical outcome.

As of 16 July 2020, globally about 13.4 million cases of coronavirus disease 2019 (COVID-19) have been confirmed with nearly 600000 deaths. One of the main concerns about COVID-19 is long-term complications. Viruses account for about one-fifth of human cancer cases [1, 2]. Herein, three possible mechanisms of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as an oncogenic virus in the lung have been discussed briefly.

Introduction Childhood cancer survivors (CSs) might face an increased lifelong risk of lung function impairment. The Lung Clearance Index (LCI) has been described as being more sensitive than spirometry in the early stages of some lung diseases. The aim of this study was to evaluate this index in a cohort of patients with a history of childhood cancer for the first time. Materials and Methods We evaluated 57 off-treatment CSs aged 0–18 years old and 50 healthy controls (HCs). We used the multiple breath washout (MBW) method to study LCI and spirometry. Results CSs did not show any differences from the controls in ventilation homogeneity (LCI 6.78 ± 1.35 vs. 6.32 ± 0.44, P: ns) or lung function (FEV1 99.9 ± 11.3% vs. 103.0 ± 5.9% of predicted, P: ns; FVC 98.2 ± 10.3% vs. 101.1 ± 3.3% of predicted). LCI significantly correlated with the number of years since the last chemotherapy (r = 0.35, P < 0.05). Conclusions Our study describes the trend of LCI in a cohort of CSs and compares it with the results obtained from healthy controls. The results show that patients maintain both good values of respiratory function and good homogeneity of ventilation during childhood. Moreover, the LCI identifies the tendency toward pulmonary fibrosis, which is typical of adult CSs, at an earlier time than spirometry.

Rickettsia are intracellular bacteria best known as the causative agents of human and animal diseases. Although these medically important Rickettsia are often transmitted via haematophagous arthropods, other Rickettsia, such as those in the Torix group, appear to reside exclusively in invertebrates and protists with no secondary vertebrate host. Importantly, little is known about the diversity or host range of Torix group Rickettsia. This study describes the serendipitous discovery of Rickettsia amplicons in the Barcode of Life Data System (BOLD), a sequence database specifically designed for the curation of mtDNA barcodes. Out of 184,585 barcode sequences analysed, Rickettsia is observed in approximately 0.41% of barcode submissions and is more likely to be found than Wolbachia (0.17%). The Torix group of Rickettsia are shown to account for 95% of all unintended amplifications from the genus, with a multilocus analysis of these strains revealing this symbiont commonly shifts between distantly related host taxa. A further targeted PCR screen of 1,612 individuals from 169 terrestrial and aquatic arthropod species identified mostly Torix strains (14/16) and supports the “aquatic hotspot” hypothesis for Torix infection. Furthermore, the analysis of Sequence Read Archive (SRA) deposits indicates Torix infections represent a significant proportion of all Rickettsia symbioses. This combination of methods reveals a broad host diversity associated with Torix Rickettsia including phloem-feeding bugs, parasitoid wasps, forest detritivores and vectors of disease. The unknown host effects and transmission strategies of these endosymbionts makes these newly discovered associations important to inform future directions of investigation involving the understudied Torix Rickettsia.

ABSTRACT: AcCHMO, a cyclohexanone monooxygenase from Acinetobacter calcoaceticus, is a typical Type I Baeyer-Villiger monooxygenase. AcCHMOM6 is a mutant of AcCHMO we obtained previously that could oxidase the omeprazole sulfide to chiral sulfoxide drug esomeprazole. Based on the structural characteristics of AcCHMO, focused mutagenesis strategy was adopted at the intersections of FAD binding domain, NADPH binding domain and α-helical domain. By the focused mutagenesis and subsequent global evolution, two key residues (55-Leu and 497-Pro) at the intersection of subdomains were identified, of which the L55Y mutagenesis accelerated the H- transfer from NADPH to FAD, while the P497S mutagenesis widened the bottleneck radius of the substrate tunnel and alleviated the substrate inhibition remarkably. By combination of the two mutagenesis, AcCHMOM7 (L55Y/P497S) increased its specific activity from 18.5 U/g to 108 U/g, and its Ki of the substrate sulfide was increased from 34 μM to 265 μM. These results indicated that the catalytic performance can be elevated by modification of the sensitive sites in the intersection of subdomains of AcCHMO, which also provided some insights for the engineering of other type I BVMOs or other multi-subdomain proteins.

Modern healthcare requires a proactive and individualized response to diseases, combining precision diagnosis and personalized treatment. Accordingly, the approach to patients with allergic diseases encompasses novel developments in the area of personalized medicine, disease phenotyping and endotyping and the development and application of reliable biomarkers. A detailed clinical history and physical examination followed by the detection of IgE immunoreactivity against specific allergens still represents the state of the art. However, nowadays, further emphasis focuses on the optimization of diagnostic and therapeutic standards and a large number of studies have been investigating the biomarkers of allergic diseases, including asthma, atopic dermatitis, allergic rhinitis, food allergy, urticaria and anaphylaxis. Various biomarkers have been developed by omics technologies, some of which lead to a better classification of the distinct phenotypes or endotypes. The introduction of biologicals to clinical practice increases the need for biomarkers for patient selection, prediction of outcomes and monitoring, to allow for an adequate choice of the duration of these costly and long-lasting therapies. Escalating healthcare costs together with questions on the efficacy of the current management of allergic diseases requires further development of a biomarker-driven approach. Here, we review biomarkers in diagnosis and treatment of asthma, atopic dermatitis, allergic rhinitis, viral infections, chronic rhinosinusitis, food allergy, drug hypersensitivity and allergen-immunotherapy with a special emphasis on specific IgE, microbiome and epithelial barrier. In addition, EAACI guidelines on biologicals are discussed within the perspective of biomarkers.