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Based on the current literature, we hypothesise that transection of an intermediate branch of the dorsal spinal nerve supplying the m. longissimus is potentially the cause of the post-operative neurogenic atrophy. The lack of detailed knowledge of the neural anatomy of the equine back has resulted in the role of local anaesthesia in localising pain in the equine back being poorly understood. The wide variation in techniques used for localising back pain may explain why some horses suffering from poor performance or an abnormal gait because of back pain improve to local anaesthesia of the back while others do not. This review article highlights a lack of anatomical knowledge regarding the equine thoracolumbar region in the literature despite diagnostic local anaesthesia, medication, and surgery in this area being relatively common.

Dihydromyricetin (DMY) is a natural dihydroflavonol with many bioactive effects. However, the physicochemical properties of DMY related to its bioavailability, especially its stability, are unclear.

The effects of pH, temperature, metal ions and ascorbic acid (AA) on the stability of DMY were studied using high-performance liquid chromatography (HPLC). The bioavailability of DMY in the presence and absence of AA was compared. Dihydromyricetin was unstable in weak alkaline solutions, and the degradation was significantly accelerated in the presence of Cu

and Fe

. The degradation process followed the first-order kinetic model. The degradation rate constant (k) increased with increasing pH and temperature. The remaining DMY was only 49% of its initial concnentration after 4 h in simulated intestinal fluid (SIF) at 37 °C. However, by supplementing with AA, the degradation of DMY was rarely occured within 6 h. The solubility of DMY at pH 3-5 was about 750 μg mL

, slightly increasing to 853 μg mL

at pH 6. Pharmacokinetic studies showed that the bioavailability of DMY increased from 0.122% to 0.341% by supplementing with AA (10% of DMY).

The degradation of DMY is one reason for its poor bioavailability. The presence of AA could significantly improve the stability of DMY, and further improve its bioavailability in rats. © 2020 Society of Chemical Industry.

The degradation of DMY is one reason for its poor bioavailability. The presence of AA could significantly improve the stability of DMY, and further improve its bioavailability in rats. © 2020 Society of Chemical Industry.

Acute generalized exanthematous pustulosis (AGEP) is a rare, severe, cutaneous adverse reaction. Although most commonly caused by drugs, it can also be triggered by infections, especially in children.

This is a retrospective study involving children and adolescents aged 16years or younger, diagnosed with AGEP between January 2010 and March 2020 in our tertiary pediatric hospital. Information pertaining to the patient's demographics, clinical presentation and progress, biochemical, microbiological, and histopathological investigations, treatment, and outcomes was analyzed.

Eight patients were diagnosed with AGEP with mean age 8.2years (range 1.7-16.0years). None of the patients had a personal or family history of psoriasis. Almost all patients had fever (n=7, 87.5%). Although all 8 patients had intercurrent illness, 5 cases were attributed to infection, while the other 3 were likely precipitated by drugs. Abnormal hematological and biochemical parameters included a raised absolute neutrophil count (mean 11.5×10

/L, range 5.0-30.9×10

/L), C-reactive protein (mean 52.5mg/L, range 5.0-143.7mg/L), and erythrocyte sedimentation rate (mean 38.6mm/h, range 6-64mm/h). All patients developed post-pustular desquamation and subsequently recovered. The mean duration from onset to cessation of acute pustulation was 5.6days (range 3.0-10.0days). One patient developed a recurrent episode of AGEP.

AGEP is rare and may be more commonly caused by infections in children. The condition is self-limiting with overall good outcomes in this age-group. selleckchem In cases with concomitant infection and drug use, formal allergy testing should be arranged after resolution of the infection to confirm the underlying etiology.

AGEP is rare and may be more commonly caused by infections in children. The condition is self-limiting with overall good outcomes in this age-group. In cases with concomitant infection and drug use, formal allergy testing should be arranged after resolution of the infection to confirm the underlying etiology.

Use of quantitative fetal fibronectin (fFN) testing to predict spontaneous preterm birth (sPTB) is gaining attention owing to its absolute measurement of fFN concentration and increased positive predictive value compared with qualitative testing.

To assess the predictive values of quantitative fFN for sPTB in different predefined thresholds using systematic review and meta-analysis.

Five major databases (PubMed, ScienceDirect, Web of Science, Embase, Cochrane library) were searched for eligible studies.

Observational studies of the diagnostic accuracy of different quantitative fFN thresholds on delivery outcomes were included.

Articles were reviewed independently by two authors and data were extracted. Sensitivity, specificity, diagnostic odds ratio, and summary receiver operating characteristic curves were extracted and calculated.

Fifteen studies were included. To detect sPTB at less than 34weeks of gestation, pooled sensitivities for thresholds of 10, 50, 200, and 500ng/ml were 0.78, 0.56, 0.33, and 0.11, respectively. Pooled specificities were 0.63, 0.84, 0.96, and 0.99, respectively.

Based on the results of the meta-analysis, the threshold of 10ng/ml fFN may be a new choice for the prediction of sPTB. The improved diagnostic accuracy of quantitative testing over qualitative testing can provide additional discriminatory information for clinical practice.

Based on the results of the meta-analysis, the threshold of 10 ng/ml fFN may be a new choice for the prediction of sPTB. The improved diagnostic accuracy of quantitative testing over qualitative testing can provide additional discriminatory information for clinical practice.

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