Transfusion-related acute lung injury under general anesthesia successfully treated with extracorporeal membrane oxygenation: A case report

INTRODUCTION: Tourette’s syndrome is a neurodevelopmental disorder commonly presenting in young males below 18 years of age and persisting for more than one year with multiple motor and vocal tics [1]. Tics are sudden, rapid, recurrent, and non-rhythmic motor movements or vocalizations commonly preceded by an urge [2]. Most cases of Tourette syndrome show significant improvement or resolve entirely by adulthood [3]. Patients whose tics persist into adulthood suffer from higher anxiety, low self-esteem, socioeconomic status, and poor quality of life [4]. Tourette syndrome is frequently associated with other common childhood disorders such as attention deficit hyperactivity disorder (ADHD) (60-80%), obsessive compulsive disorder (OCD) (11-80%), anxiety, depression (13-76%), migraine (25%) and self-injurious behaviour [5,6].According to the American Academy of Neurology’s practice guidelines, Tourette syndrome can be managed with behavioural, pharmacological, and surgical modalities [7]. Behavioural therapy includes exposure and response prevention therapy (ERP), habit reversal therapy (HRT), and comprehensive behavioural intervention for tics (CBiT), which is considered the safest and first line of treatment [4,7].CBiT is typically a behavioural intervention that includes psycho-education, HRT, functional analysis, and relaxation training and improves the patient’s recognition of the initial urge by providing a competing response or motor movement incompatible with the corresponding tic [8,9].

A document by Adam Kisling. Click on the document to view its contents.

Timing and magnitude of potassium supply determines the location of potassium deficiency symptoms

Ubiquitin proteasome system (UPS) is the major avenues approach of protein degradation, which is responsible for 80% protein degradation in eukaryotic cells. Recently, UPS is involved in a variety of disease processes and plays a significant role in DNA repair, transcription regulation, autophagy and protein transport. Pulmonary arterial hypertension (PAH) is a disease mainly caused by pulmonary artery endothelial cell (PAEC) dysfunction and pulmonary artery smooth muscle cell (PASMC) excessive proliferation and abnormal apoptosis. These increased pulmonary vascular resistance, vascular remodeling, and finally leading to the failure of right heart. The alteration of pulmonary artery protein ubiquitination occurs at the initial stage of PAH and participates in several cell pathways, such as vasoconstriction, tissue remodeling/angiogenesis, cell migration and calcium signaling. In this review, we mainly introduce the functional changes of UPS in PAH, especially specific E3 ubiquitin ligases with related endoplasmic reticulum stress (ERS), proteolysis-targeting chimeras (PROTACs) and proteasome inhibitors mediated degradation mechanism, providing new ideas for the precise diagnosis and treatment of PAH.

Background: The purpose of this article is armed to provide some experience and insight for the clinical treatment of primary mediastinal yolk sac tumor (PMYST) basing on our case report and relevant literature review. Case report and literature review: A 15-year-old boy was diagnosed as PMYST with the volume about 13*12*8cm. The

Postpartum anestrus (PPA) condition or long PPA interval (PPAI) (>90 days) is a reproductive problem in buffaloes. Both genetic and non-genetic factors contribute to the variation in PPAI. Identifying the genetic markers associated with PPA will help in the marker-based selection of buffaloes against PPA, thereby PPA incidence can be reduced. However, such genetic markers associated with PPA are scanty. Therefore, the present study was targeted to identify the association of SNPs in the gonadotropin inhibitory hormone (GnIH/NPVF) gene with PPAI in Indian Murrah buffaloes. GnIH/NPVF is a neuropeptide that inhibits gonadotropin-releasing hormone (GnRH) and gonadotropin secretion. Sequencing of the GnIH/NPVF gene amplified from a pooled DNA sample of 10 PPA and 10 healthy postpartum cyclic controls revealed 8 SNPs in the putative promoter and 5’-UTR regions. Transcription factor binding analysis identified that the allele A of the SNP (c.-1001A>G) at the 5’UTR region could promote the binding of FoxO_CS transcription factor, an inhibitor of gonadotropin release. Association analysis between the genotypes of this SNP and PPAI of 66 extreme PPA buffaloes and 83 extreme controls (PPA< 90 days) identified its significant (P<0.0093) association with PPAI in this selected buffalo population sample. Particularly, the G-allele of this SNP appeared to reduce 30.33±11.51 PPAI days in Murrah buffaloes. In conclusion, the SNP c.-1001A>G in the GnIH/NPVF gene could be a potential genetic marker associated with PPA in Murrah buffaloes, and this association needs further validation in large population samples before its consideration for marker-assisted selection programs against PPA in buffaloes.

Afforestation is the primary ecosystem measure to address the issue of ecosystem degradation in in the Horqin sandy region of northern China. However , It is yet unclear how afforestation may affect the recovery of sandy grassland. This study took the ecological stoichiometry as indicators, and conducted a field investigation and indoor analysis to assess the afforestation strategies of three indigenous tree species for the restoration of sandy grassland , three restoration strategies were: (1) grasslands were enclosed via a Populus × beijingensis shelterbelt (FG); (2) Pinussylvestris var. mongolica was used for the afforestation of small, well-distributed grassland patches (MG); (3) Ulmus pumila was used for the afforestation of small, well-distributed patches (UG). Our result showed that the C, N, and P contents as well as the C: N: P ratio in plants, litters, and soils varied significantly between FG, MG, and UG. All three treatments were found to significantly impact the soil ratios of C:N, N:P, and C:P relative to CK treatment after more than 20 years of recovery. The results of N : P in different tissues showed that FG , MG and UG vegetation restorations were N-limited. N and P homeostasis was present in trees, especially Ulmus pumila, while the degree of homeostasis was significantly impacted by afforestation species and plant tissues. The N:P results suggested that lower N deficiency stress may have been experienced by three experimental plants. We concluded that UG was better suited to the dry climate in Horqin Sandy Land.

This paper studies the problem of optimal control with state constraints for mean-field type stochastic systems, which is governed by fully coupled forward-backward stochastic differential equations(FBSDE) with Teugels martingales. In this system, the coefficients contain not only the state processes but also its marginal distribution, and the cost function is of mean-field type as well. We use an equivalent backward formulation to deal with the terminal state constraint, and then we obtain a stochastic maximum principle by Ekeland’s variational principle. In addition, we discuss a stochastic LQ control problem with state constraints.

Iopromide is one of the latest generations of non-ionic monomers (NIM) iodinated contrast media (CM). Its use is generally considered to be safe but can occasionally results in adverse events. The frequency of late adverse reactions to non-ionic monomers is between 0.52 and 23%. Delayed adverse reactions mainly manifest as skin reactions such as erythema, maculopapular exanthema and exceptionally as fixed drug eruption (FDE). To the best of our knowledge this is an exceptional case of bullous FDE diagnosed after administration of iopromide. This case was notified to the Tunisian Center of Pharmacovigilance on December 2020 and registered under the number 1925/2020. A 75-year-old woman, with a history of breast carcinoma underwent a chest CT scan with injection of contrast product (ultravist® iopromide) in November 2020. The same day, she developed four, 2 cm in diameter, well limited and oval shaped slightly erythematous itchy plaques on the trunk and right lower limb with a burning sensation. The next day, some of these lesions developed to bullae and erosions. There was not any pathological finding in the physical examination. Biopsy findings were in line with the clinical diagnosis of FDE. The skin lesions were treated with topical corticoids and showed complete resolution one month later with residual hyperpigmentation. Although very uncommon, bullous FDE induced by CM does exist and should be known by radiologists. In this case, we emphasize the importance of a thorough pharmacovigilance investigation with a detailed history and a careful examination of physical and histopathological findings, since patch tests expose the patient to the risk of reactivation and more severe reactions.

Pulmonary arterial hypertension (PAH) is a life-threatening disease characterized by elevated pulmonary pressure, right ventricular failure (RVF) and ultimately death. Aggressive treatment of RVF is considered the most important therapeutic strategy. In this study, betaine injection was prepared and characterized by various techniques. The therapeutic efficacy of gavage (I.G.), nebulized inhalation (Inh.) and intravenous (I.V.) injections was evaluated comprehensively in terms of pharmacokinetics, tissue distribution and pharmacodynamics using three different methods of administration. The results of pharmacokinetic demonstrated that Inh. betaine injection significantly prolonged the half-life of the drug, increased its internal circulation time and increased Inh. administration significantly improved the pharmacokinetics of betaine compared to I.G. and I.V. administration. Combined with biodistribution experiments verified that betaine formulation could accumulate in lung tissue via Inh. The results of pharmacodynamic further confirmed that right ventricular systolic pressure (RVSP), mean pulmonary artery pressure (mPAP) and right ventricular hypertrophy index (RVHI) were increased in the model group and that betaine prepared by Inh. was able to suppress this increase to levels similar to those observed in the control group. Consequently, Inh. administration would be a promising strategy for the treatment of PAH-induced RVF.

Salt dilution is a well-established streamflow measurement method in creeks, which works particularly well downstream of turbulent flow sections as mixing of the salt tracer is enhanced. Usually salt dilution measurements are performed manually, which considerably limits the observations of rare peak flow events. However, these events are particularly important for constructing robust rating curves and avoiding large uncertainties in the extrapolation of river discharge values. An additional challenge is the variability of the river cross-section, especially after larger discharge events, leading to non-stationary rating curves. Therefore, discharge measurements well distributed over time are needed to both construct a reliable streamflow-water level relationship and to detect changes caused by erosion and deposition processes. To overcome these two issues, we used an automated streamflow measuring systems at three different sites in the Alps for event-based discharge measurements. This system allowed us to measure close to the highest peak flows at all three sites in the observation period (2020-2021) and to detect abrupt changes in the rating curve. Based on a very large data set of almost 300 measurements, we were able to evaluate the reliability of the system and to identify the main sources of uncertainty in the experimental setup. One key aspect was the site selection for the downstream electrical conductivity sensors as measurement location strongly controls the signal-to-noise ratio (SNR) in the recorded breakthrough curves.

In the group of arthropods, several organisms like spiders, scorpions, bees, wasps and centipedes employ venom as a biological weapon to capture prey or for self-defense. Many enzymatic proteins, non-enzymatic proteins, and other non-peptidic components compose the venom of these animals. Components of centipede venom have shown a great potential as an antiproliferative and antitumoral agent; with a high affinity to tumoral cells. In the present study, Scolopendra polymorpha whole venom was evaluated on the viability of HPV16-transformed epithelial cells (BMK-16 myc) by MTT assay. Additionally, it was analyzed the gene expression of pro and anti-inflammatory cytokines to assess the immune stimulatory effect of whole venom in BMK-16/myc cells by Real-time RT-PCR. Results indicate that the venom reduced around 50% of cell viability compared to untreated cells; showing its major effect at the concentration of 50 and 70 μg/mL. On the other hand, the venom induces a significant upregulation of expression of IL-1, IFN-γ and IL-10 cytokines (<0.05), and a significant downregulation of the expression of IL-2 (<0.05). These findings indicate that Scolopendra polymorpha venom has a cytotoxic and immunomodulatory effect in tumor cell HPV-16 positives and maybe a good candidate for therapy for cervical cancer.

The stereoselective preparation of fullerene bis-adducts through nontethered methods remains difficult due to the significant amount of regioisomers produced. The trans-4 aziridino[60]fullerenes, C60(NC6H4R)n (n = 1 or 2, R = OMe, OEt, OBu), were selectively synthesized even without a catalyst by reacting octabromofullerene with the corresponding aniline. Nuclear magnetic resonance spectroscopy, UV-vis spectroscopy, and X-ray structural analysis provided convincing characterization of the compounds. A possible reaction process was proposed to clarify the synthesis of highly regioselective trans-4-bisaziridino[60]fullerenes. The possible use of these aziridino[60]fullerene derivatives as propellant stabilizers was also explored.

This paper introduces a new design for a H ∞ filter for nonlinear singular systems with bounded disturbance in the time domain, the frequency domain based on both time and frequency domain.In addition, we present results comparison between three filter design methods. The main objective of such a design is the estimation of the state vector. The proposed filter design is verified when using coupled multimodel architecture. In this note, we propose to adopt the Lyapunov–Krasovskii theory to ensure the filter stability by using a Lyapunov functional added to a H ∞ criterion to minimize the disturbance effect.Furthermore, polynomial approach using MFD tools is employed to describe the filter dynamic in the frequency domain. A numerical example is given to demonstrate the effectiveness of the proposed design.

Objective: To understand the extent to which adolescent awareness of and attitudes about anaemia and anaemia prevention can be changed by nutrition messages received at school. Design: Mixed-methods pre–post intervention study Setting: Three Government schools in Bagalkot, Belagavi and Raichur districts of Karnataka, India Population or Sample: Students of grade six and seven and teachers involved in implementing the intervention. Methods: An education intervention was co-developed by school teachers and nutrition experts using locally adapted resource materials that consisted of lectures, role play and practical demonstrations. Seven half-hour educational sessions were delivered by school teachers over seven weeks to 455 students. Pre- and post-intervention tests measured changes in adolescents’ knowledge about anaemia. In-depth interviews with teachers and focus groups with students explored reactions to the intervention. Main outcome measures: Knowledge score related to anaemia Results: The percentage of children with correct scores increased by 7.3 - 49.0 percentage points for the tested questions after implementation of the intervention. The mean knowledge score increased by 3.67±0.17(p<0.01). During interviews, teachers and students highlighted high acceptance of the intervention and materials, an increase in awareness, a positive attitude towards changing behaviour around diet, an increase in the demand for iron folic acid supplements and improved sharing of messages learned with peers and families. Challenges expressed included need for further training, time limitations and hesitancy in teaching about menstruation and pregnancy. Conclusions: Educational interventions carried out for adolescents by teachers in schools are effective in improving awareness and attitude related to anaemia.

A document by zeynep.dasikan. Click on the document to view its contents.

This investigation proposes a dynamic event-triggered-based anti-disturbance control technique for the uncertain linear parameter varying (LPV) systems subject to multiple disturbances. The disturbances are comprised of two parts including the unavailable modeled disturbances and the available unmodeled disturbances. First, an observer is constructed to capture the unavailable modeled disturbances. Then, a dynamic event-triggered-based feedback controller is proposed. Further, under the developed event-triggered controller, sufficient conditions are presented for the uncertain LPV systems to achieve the multiple disturbances suppression and communication transmission resources saving. In the end, the reasonability of the raised dynamic event-triggered based anti-disturbance control scheme is verified by an example of a turbofan.

Mapping fluvial hydromorphology is an important part of defining river habitat. Mapping via field sampling or hydraulic modelling is however time consuming, and mapping hydromorphology directly from remote sensing data may offer an efficient solution. Here we present a system for automated classification of fluvial hydromorphology based on a deep learning classification scheme applied to aerial orthophotos. Using selected rivers in Norway, we show how surface flow patterns (smooth or rippled surfaces versus standing waves) can be classified in imagery using a trained convolutional neural network. We show how integration of these classified surface flow patterns with information on channel gradient, obtained from airborne topographic LiDAR data, can be used to compartmentalize the rivers into hydromorphological units that represent the dominant flow features. Automated classifications were consistent with those produced manually. They were found to be discharge-dependent, showing the temporally dynamic aspect of hydromorphology. The proposed system is quick, flexible, generalizable, and free from researcher-subjectivity. The deep learning approach used here can be customized to provide more detailed information on flow features, such as delineating between standing waves and advective diffusion of air bubbles/foam, to provide a more refined classification of surface flow patterns, and the classification approach can be further advanced by inclusion of additional remote sensing methods that provide further information on hydromorphological features.

A Ka-band low noise amplifier (LNA) is presented that improves the traditional source-degeneration LNA by utilizing broadband transformer matching and gate-drain feedback technology. The proposed LNA achieves an ultra-wideband LNA while maintaining the advantages of high integration and low power consumption of the traditional source-degeneration LNA. In addition, cascade technology is adopted to further improve peak gain. The proposed LNA is implemented in 55nm CMOS process. The simulated results show that the LNA achieves stable gain response in the 21.7-36.5 GHz frequency band, with a peak power gain of 20.8 dB. The minimum noise coefficient is 4.4 dB, and the DC power consumption is 15 mW. The LNA achieves a compact chip area of 0.33 mm 2.

Background Cyclin D has been shown to play an essential role in acute lymphoblastic leukemia (ALL) initiation and progression, providing rationale for targeting the CDK4/6-cyclin D complex that regulates cell cycle progression. Procedure The Children’s Oncology Group AINV18P1 phase 1 trial evaluated the CDK4/6 inhibitor, palbociclib, in combination with standard four-drug reinduction chemotherapy in children and young adults with relapsed/refractory B- and T-cell lymphoblastic leukemia (ALL) and lymphoma. Palbociclib (50 mg/m 2/dose) was administered orally once daily for 21 consecutive days, first as a single agent (days 1-3) and subsequently combined with reinduction chemotherapy. This two-part study was designed to determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) followed by an expansion pharmacokinetic (PK) cohort. Results Twelve heavily pretreated patients enrolled, all of whom were evaluable for toxicity. One dose-limiting hematologic toxicity (DLT) occurred at the starting dose of 50 mg/m 2/dose orally for 21 days. No additional DLTs were observed in the dose determination or PK expansion cohorts and overall rates of grade 3/4 non-hematologic toxicities were comparable to those observed with the chemotherapy platform alone. Five complete responses were observed, two among four patients with T-ALL and three among seven patients with B-ALL. Pharmacokinetic studies showed similar profiles with both liquid and capsule formulations of palbociclib. Conclusions Palbociclib in combination with reinduction chemotherapy was well tolerated with a RP2D of 50 mg/m 2/day for 21 days. Complete responses were observed among heavily pretreated patients.

A coupled inductor based on dual switches buck-boost converter is proposed in the article, which can be used in renewable energy applications. Wide conversion ratio can be realized by regulating turns ratio of the coupled inductor and the duty cycle. The topology has a quadratic- like voltage gain, and the low voltage stress and current stress. Combing the passive clamping circuit to recover leakage energy, the voltage spikes of power switches are suppressed, improving the efficiency. Moreover, it has the merits of continuous input current and common ground. To demonstrate the superior performances of the presented converter, the principle of operation and steady-state analysis are presented in detail. At last, a 100 W experimental prototype was designed to verify the correctness of the theoretical analysis, with a maximum efficiency of 95.7% in step-up mode and 96.8 % in step-down mode.

Severe fetal anaemia resulting from a widely metastatic antenatal choriocarcinoma

A document by Anup Dandapat. Click on the document to view its contents.