Proteomics is an emerging tool in food authentication that has not been optimised for honey analysis. In this study, we present a qualitative proteomic analysis of New Zealand mānuka (Leptospermum scoparium) honey. A total of fifty bee-derived proteins were identified in the honey, the most predominant being major royal jelly proteins (MRJPs). We also demonstrate for the first time the presence of unique nectar-derived proteins in mānuka honey. A total of 17 mānuka plant proteins were identified, a-third of which were putative pathogenesis-related proteins. Two proteins involved in drought tolerance were also identified. Twelve candidate peptides were selected as potential authentication markers based on their uniqueness to mānuka honey. Nectar analyses confirmed the origin and specificity of these peptides to L. scoparium nectar, thus presenting peptide profiling as a viable and novel approach for mānuka honey authentication. Raw data are available via ProteomeXchange with identifier PXD021730.We estimated HLA allele and haplotype frequencies of the Saudi Arabian population from a sample of 45,457 registered stem cell donors. The most frequent HLA alleles were A*0201g (18.5%), C*0602g (16.1%), B*5101g (14.1%), DRB1*0701g (16.2%), DQB1*0201g (30.5%), and DPB1*0401g (33.6%). The most frequent 5-locus haplotypes were A*0205g~C*0602g~B*5001g~DRB1*0701g~DQB1*0201g (1.73%), A*0201g~C*0602g~B*5001g~DRB1*0701g~DQB1*0201g (1.66%), and A*2601g~C*0702g~B*0801g~DRB1*0301g~DQB1*0201g (1.38%). Furthermore, we used the calculated haplotype frequencies to estimate stem cell donor matching probabilities for Saudi Arabian donor and patient populations under various matching requirements. These results are relevant for strategic donor registry planning in the Kingdom of Saudi Arabia.

Simulation models are increasingly important for skill acquisition during microsurgery training. Prosthetics, living and non-living biological models have been proposed in the literature in the optics of recreating real-life scenarios in a controlled environment. This study aims to validate and prove the reusability of a novel non-living biological model the porcine placenta.

A prospective comparative study was carried out to assess face and content validities of the proposed model, as well as the reusability and quality of the Thiel-embalming method. Participants were asked answer a questionnaire for each anastomosis they performed on porcine placental vessels of ≤2mm (small) and 2-4mm (large). Scores were classified according to different subgroups, either small or large vessels and first or second sessions. Reliability analysis of the questionnaire was carried out using Cronbach’s α, to ensure an α>0.7. Median scores for each question were analyzed using boxplots and compared amongst each subgroup using a non-parametric independent Mann-Whitney U test.

With nine participants, the Cronbach’s α for each category of question was 0.867, 0.778, 0.720 and 0.593. Statistical differences were found between responses of small and large vessels on 5/10 questions, where large vessels reported higher validity. No statistical differences were found between scores of the first and second sessions.

By evaluating face and content validity, the Thiel-embalmed porcine placenta has proven its suitability as a microsurgery model, especially for vessels of larger caliber. Qualities that distinguish this model is its reliable reusability, its low cost-effectiveness, and its ethical acceptability.

By evaluating face and content validity, the Thiel-embalmed porcine placenta has proven its suitability as a microsurgery model, especially for vessels of larger caliber. Qualities that distinguish this model is its reliable reusability, its low cost-effectiveness, and its ethical acceptability.

The human papilloma virus (HPV) type 16 and 18 causes nearly 70% of uterine cervical cancers. Oral administration of live Salmonella typhi Ty21a, expressing major capsid proteins (L1) of HPV 16 and 18 is a potential choice for immunization in adolescent girls under low resource settings. Present study aimed to assess the nonclinical safety of recombinant S. typhi expressing HPV 16 and 18 (rStHPV) proteins.

The acute toxicity of rStHPV was tested by intranasal single dose administration, of 10 and 50 folds higher than clinical prophylactic dose, in mice and rat followed by monitoring their survival for 14days. Sub-chronic toxicity was evaluated in rats and rabbits with prophylactic and 5 times (average) to clinical prophylactic dosages on scheduled days (1st, 3rd & 5th day) through oral and intranasal routes. The immune/allergic response of rStHPV was assessed in mice through intranasal and intra-peritoneal routes. Experimental animals were daily monitored for live phase, and clinical chemistry, haematPV specific IgG suggests the immunogenicity of vaccine. The innovative approach of current study is nonclinical toxicology evaluation of vaccine through intra-nasal route, an alternate route apart from stipulated regulatory guidelines.

The study results suggested ‘no observable adverse effects’ of rStHPV even at higher dosages (5, 10 & 50 folds) than intended clinical dose. A significant increase of anti-HPV specific IgG suggests the immunogenicity of vaccine. The innovative approach of current study is nonclinical toxicology evaluation of vaccine through intra-nasal route, an alternate route apart from stipulated regulatory guidelines.

To assess whether hospitalization and feeding strategy impact the risk of hypozincemia and associated risk factors.

In this case-control study, serum zinc levels were compared between inpatients fed oral nutrition (ON) (n=76) or enteral nutrition (EN) (n=191) with outpatient controls (n=1095).

Zinc levels were significantly lower in inpatients receiving EN compared with those receiving ON (P=0.001). Significant (P<0.001) β-values of-11.16 and-17.58 for serum zinc concentrations were found for inpatients receiving ON or EN, respectively, compared with the outpatients. selleck kinase inhibitor Hospitalization and old age were both independent predictors of zinc deficiency. More than 75% of patients >60 years of age fed EN had a zinc concentration <68.75μg/dL. Low hemoglobin levels increased the risk of low zinc levels for inpatients receiving EN (P=0.003) and ON (P=0.026). Age (P<0.001), noninvasive mechanical ventilatory support (P=0.016), and critical care (P=0.018) were risk factors for hypozincemia in patients receiving ON.