Outbreak of gastroenteritis caused by Yersinia pestis in Afghanistan.

Plague, which is most often caused by the bite of Yersinia pestis-infected fleas, is a rapidly progressing, serious disease that can be fatal without prompt antibiotic treatment. In late December 2007, an outbreak of acute gastroenteritis occurred in Nimroz Province of southern Afghanistan. Of the 83 probable cases of illness, 17 died (case fatality 20·5%). Being a case was associated with consumption or handling of camel meat (adjusted odds ratio 4·4, 95% confidence interval 2·2-8·8, P<0·001). Molecular testing of patient clinical samples and of tissue from the camel using PCR/electrospray ionization-mass spectrometry revealed DNA signatures consistent with Yersinia pestis. Confirmatory testing using real-time PCR and immunological seroconversion of one of the patients confirmed that the outbreak was caused by plague, with a rare gastrointestinal presentation. The study highlights the challenges of identifying infectious agents in low-resource settings; it is the first reported occurrence of plague in Afghanistan

Incentives facing UK-listed companies to comply with the risk reporting provisions of the UK Corporate Governance Code

Recent changes made to the UK Corporate Governance Code require UK firms to report new or enhanced narrative information concerning their principal risks, their risk management processes and their future viability. This paper analyses whether the level and nature of voluntary compliance with these new requirements is consistent with alternative economic and political visibility incentives. We analyse relevant sections of financial reports produced by industry matched samples of large-, mid-and small-cap UK listed firms during the transitional 2013-14 financial reporting years. Both specific and generic readability attributes of the reports are measured. We find that virtually no firm in our sample has provided any viability statement. Empirical analysis of disclosures concerning principal risk assessment and review processes appear to be primarily motivated by political visibility reasons. Examples of particularly good and cases of poor corporate risk reporting practices are also discussed. Possible implications for the actuarial profession are discussed

Hyper-IgM and acquired C1q complement deficiency in a patient with de novo ATM mutation

Hyper-IgM syndrome (HIGM) is a rare immunodeficiency phenotype that is usually accompanied by serious infections. We present a curious case of the incidental detection of HIGM in a 45-year-old male with complement C1q deficiency. He had relatively mild sinopulmonary infections, recurrent skin infections and lipomas in his adulthood. Investigations revealed normal enumeration of total peripheral blood B cells and reduced expression of CD40L on his CD4+ T cells. C1q was noted to be absent, due to a peripheral inhibitor such as an autoantibody. Genomic sequencing of the patient and his parents revealed a novel, de novo heterozygous mutation in the ATM (ataxia telangiectasia mutated) gene although he displayed no clinical evidence of ataxia telangiectasia. This is a rare case of HIGM and acquired C1q deficiency. We present full phenotyping data that contributes to the growing understanding to these interesting immunodeficiencies

Formulation for the Targeted Delivery of a Vaccine Strain of Oncolytic Measles Virus (OMV) in Hyaluronic Acid Coated Thiolated Chitosan as a Green Nanoformulation for the Treatment of Prostate Cancer: A Viro-Immunotherapeutic Approach [Retraction]

Naseer F, Ahmad T, Kousar K, et al. Int J Nanomedicine. 2023;18:185&#x2013;205. We, the Editor and Publisher of the journal International Journal of Nanomedicine are retracting the published article. Following publication of the article, concerns were raised about the duplication of images from Figures 8, 10 and 13 with images from other unrelated articles. Specifically, The image for Figure 8A, blank NF temperatures, has been duplicated with the image for Figure 13C, SEM of lyophilized NF after 3 months storage. The image for Figure 8C, HA-coated OMV loaded TC, has been duplicated with the image for Figure 16C, lyophilized NFs after 3 months, from Kousar K, Naseer F, Abduh MS, Anjum S and Ahmad T. CD44 targeted delivery of oncolytic Newcastle disease virus encapsulated in thiolated chitosan for sustained release in cervical cancer: a targeted immunotherapy approach. Front. Immunol. 2023;14:1175535. https://doi.org/10.3389/fimmu.2023.1175535. The image for Figure 8D, HA-coated OMV loaded TCs, has been duplicated with the image for Figure 6B, CsA-loaded ThC-HA NF, from Abduh MS. Anticancer Analysis of CD44 Targeted Cyclosporine Loaded Thiolated Chitosan Nanoformulations for Sustained Release in Triple-Negative Breast Cancer. Int J Nanomedicine. 2023;18:5713-5732. https://doi.org/10.2147/IJN.S424932. The image for Figure 9D, HA-coated OMV-loaded TCs, has been duplicated with the image for Figure 10B, HA-ThCs-Cis NFs, from Kousar K, Naseer F, Abduh MS, et al. Green synthesis of hyaluronic acid coated, thiolated chitosan nanoparticles for CD44 targeted delivery and sustained release of Cisplatin in cervical carcinoma. Front. Pharmacol. 2023;13:1073004. https://doi.org/10.3389/fphar.2022.1073004. The entire Figure 10 has been duplicated with Figure 6 from Naseer F, Kousar K, Abduh MS, et al. Evaluation of the anticancer potential of CD44 targeted vincristine nanoformulation in prostate cancer xenograft model: a multi-dynamic approach for advanced pharmacokinetic evaluation. Cancer Nano. 2023;14:65. https://doi.org/10.1186/s12645-023-00218-2. The images for Figure 10, Pure MV 12h, 90&#x00B5;g/ml and OMV-loaded TCs 24h, 50&#x00B5;g/ml have been duplicated. The image for Figure 10, OMV-loaded TCs 24h, 90&#x00B5;g/ml has been duplicated with the image for Figure 10, MCF-10A, Pure CsA, 90&#x00B5;g/ml from Abduh MS, 2023. The image for Figure 10, Pure MV 12h, 50&#x00B5;g/ml has been duplicated with the image for Figure 10, MCF-10A, CsA-NF, 60&#x00B5;g/ml from Abduh MS, 2023. The images for Figure 13C, lyophilized NF after 3 months storage, has been duplicated with the image for Figure 7A, SEM image of spherical HA-ThCs-Cis loaded nanoparticles, from Kousar K, et al (2023). The corresponding author responded to our queries but was unable to provide a satisfactory explanation for how the images came to be duplicated and the editor no longer has confidence in the reported findings. As verifying the validity of published work is core to the integrity of the scholarly record, the Publisher and Editor requested to retract the article and the corresponding author does not agree with this decision. We have been informed in our decision-making by our editorial policies and COPE guidelines. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as &#x201C;Retracted&#x201D;

Diminished Bone Formation During Diabetic Fracture Healing Is Related to the Premature Resorption of Cartilage Associated with Increased Osteoclast Activity

Histological and molecular analysis of fracture healing in normal and diabetic animals showed significantly enhanced removal of cartilage in diabetic animals. Increased cartilage turnover was associated with elevated osteoclast numbers, a higher expression of genes that promote osteoclastogenesis, and diminished primary bone formation. Introduction Diminished bone formation, an increased incidence of nonunions, and delayed fracture healing have been observed in animal models and in patients with diabetes. Fracture healing is characterized by the formation of a stabilizing callus in which cartilage is formed and then resorbed and replaced by bone. To gain insight into how diabetes affects fracture healing, studies were carried out focusing on the impact of diabetes on the transition from cartilage to bone. Materials and Methods A low-dose treatment protocol of streptozotocin in CD-1 mice was used to induce a type 1 diabetic condition. After mice were hyperglycemic for 3 weeks, controlled closed simple transverse fractures of the tibia were induced and fixed by intramedullary pins. Histomorphometric analysis of the tibias obtained 12, 16, and 22 days after fracture was performed across the fracture callus at 0.5 mm proximal and distal increments using computer-assisted image analysis. Another group of 16-day samples were examined by μCT. RNA was isolated from a separate set of animals, and the expression of genes that reflect the formation and removal of cartilage and bone was measured by real-time PCR. Results Molecular analysis of collagen types II and X mRNA expression showed that cartilage formation was the same during the initial period of callus formation. Histomorphometric analysis of day 12 fracture calluses showed that callus size and cartilage area were also similar in normoglycemic and diabetic mice. In contrast, on day 16, callus size, cartilage tissue, and new bone area were 2.0-, 4.4-, and 1.5-fold larger, respectively, in the normoglycemic compared with the diabetic group (p \u3c 0.05). Analysis of μCT images indicated that the bone volume in the normoglycemic animals was 38% larger than in diabetic animals. There were 78% more osteoclasts in the diabetic group compared with the normoglycemic group (p \u3c 0.05) on day 16, consistent with the reduction in cartilage. Real-time PCR showed significantly elevated levels of mRNA expression for TNF-α, macrophage-colony stimulating factor, RANKL, and vascular endothelial growth factor-A in the diabetic group. Similarly, the mRNA encoding ADAMTS 4 and 5, major aggrecanases that degrade cartilage, was also elevated in diabetic animals. Conclusions These results suggest that impaired fracture healing in diabetes is characterized by increased rates of cartilage resorption. This premature loss of cartilage leads to a reduction in callus size and contributes to decreased bone formation and mechanical strength frequently reported in diabetic fracture healing

Entropic effects on the Size Evolution of Cluster Structure

We show that the vibrational entropy can play a crucial role in determining the equilibrium structure of clusters by constructing structural phase diagrams showing how the structure depends upon both size and temperature. These phase diagrams are obtained for example rare gas and metal clusters.Comment: 5 pages, 3 figure

Securin (hPTTG1) expression is regulated by β-catenin/TCF in human colorectal carcinoma

Overexpression of the transcriptional activator β-catenin, mostly owing to loss-of-function mutations of the adenomatous polyposis coli (APC) tumour suppressor gene, is crucial for the initiation and progression of human colorectal carcinogenesis. Securin is a regulator of chromosome separation and its overexpression has been shown to be involved in different tumour-promoting processes, like transformation, hyperproliferation and angiogenesis, and correlates with tumour cell invasion. However, the molecular mechanism leading to securin overexpression in human colorectal cancer is unknown. Here we show a correlated high expression of β-catenin and securin (hPTTG1) in colorectal adenomas and carcinomas and further demonstrate that securin is a target of β-catenin transcriptional activation. This implies that deregulation of the β-catenin/T-cell factor-signalling pathway leads to overexpression of securin in human colorectal cancer, which subsequently may contribute to tumour progression

The Effects of Different Concentrations and Combinations of Growth Regulators on the Callus Formation of Potato (Solanum tubrosum) Explants

Abstract: The main objective of the present study was to investigate the effects of different concentrations of plant growth regulators and their combinations on callus induction of potato (Solanum tuberosum L.). The explants of potato tuber were cultured on Modified Murashige and Skoog medium which was supplemented with different concentrations of 2,4-Dichlorophenoxy acetic acid (2,4-D), &quot;-naphthalene Acetic Acid (NAA), Benzyl Adenine (BA), 2,4-D in combinations with BA and NAA in combination with BA for callus induction. The Concentration of sucrose was 3% W/V level and the pH of the media was adjusted to 5.7 before the addition of agar 8% W/V. The explants were first dissected out aseptically and then inoculated to the media (with various levels of hormones), then incubated at 27±2ºC in the culture room. Among the treatments 2, 4-D at different concentrations produced different degree of callus but comparatively a massive amount of callus was formed on MS medium supplemented with 2, 4-D alone at 3.0 mg/L. Also NAA and BA with different concentrations produced considerable degrees of callus but the degree of callus was best at higher concentrations of NAA and BA. 2, 4-D in combination with BA at 2.0 mg/L both produced considerable amount of callus. In case of NAA in combination with BA the degree of callus formation was best at concentration 1.0 mg/L each. So according to the above findings it was concluded that 2, 4-D is the best option for induction of callus among the other hormones used in the study

Prevalence of type 2 diabetes in Nepal: a systematic review and meta-analysis from 2000 to 2014

Background: Understanding the prevalence of type 2 diabetes in Nepal can help in planning for health services and recognising risk factors. This review aims to systematically identify and collate studies describing the prevalence of type 2 diabetes, to summarise the findings, and to explore selected factors that may influence prevalence estimates. Design: This systematic review was conducted in adherence to the MOOSE Guidelines for Meta-Analysis and Systematic Reviews of Observational Studies. Medical Literature Analysis and Retrieval System (MEDLINE) database from 1 January 2000 to 31 December 2014 was searched for the prevalence of type 2 diabetes among Nepalese populations with a combination of search terms. We exploded the search terms to include all possible synonyms and spellings obtained in the search strategy. Additionally, we performed a manual search for other articles and references of published articles. Results: We found 65 articles; ten studies fulfilled the inclusion criteria and were included in the analyses. These ten studies comprised a total of 30,218 subjects. The sample size ranged from 489 to 14,009. All the studies used participants older than age 15, of whom 41.5% were male and 58.5% female. All the studies were cross-sectional and two were hospital-based. Prevalence of type 2 diabetes ranged from a minimum of 1.4% to a maximum of 19.0% and pooled prevalence of type 2 diabetes was 8.4% (95% CI: 6.2 10.5%). Prevalence of type 2 diabetes in urban and rural populations was 8.1% (95% CI: 7.3 8.9%) and 1.0% (95% CI: 0.7 1.3%), respectively. Conclusions: This is, to our knowledge, the first study to systematically evaluate the literature of prevalence of type 2 diabetes in Nepal. Results showed that type 2 diabetes is currently a high-burden disease in Nepal, suggesting a possible area to deliberately expand preventive interventions as well as efforts to control the disease

Fractured metallic tracheostomy tube in a child: a case report and review of the literature

<p>Abstract</p> <p>Introduction</p> <p>Tracheostomy is a common airway procedure for life support. The fracture of the tracheostomy tube is a rare complication. We report a case of a 14-year-old boy whose fractured stainless steel tracheostomy tube dislodged into the tracheobronchial tree. We include a literature review and proposed recommendations for tracheostomy care.</p> <p>Case presentation</p> <p>A 14-year-old Thai boy who had a stainless steel tracheostomy tube presented with a complaint of intermittent cough for 2 months. During tracheostomy tube cleaning, his parents found that the inner tube was missing. A chest X-ray revealed a metallic density foreign body in his right main bronchus. He underwent bronchoscopic removal of the inner tracheostomy tube and was discharged without further complications.</p> <p>Conclusion</p> <p>A fractured tracheostomy tube is a rare complication. Appropriate cleaning and scheduled replacement of the tracheostomy tube may prevent this complication.</p