Lymphoid Polyposis in an Adult Male- A Case Report

Benign lymphoid polyposis is a rare histologic entity and should not be confused with malignant disease of the colon and rectum. We present a case of lymphoid polyposis in the intestine in a 26 years old male patient who was admitted for the treatment of faecal fistula. He had history of appendectomy, followed by ileostomy four years back. Physical examination revealed multiple faecal fistulae in the right lower abdomen. Right-sided hemicolectomy was done. Gross examination showed multiple polyps through out the specimen; the junction between caecum and ascending colon was found partially stenosed. Microscopy revealed polypoid structures consisting of multiple lymphoid follicles with prominent germinal centers. A stenosed area represented probable fistulous tract within the fibrosis. The final diagnosis was lymphoid polyposis based on clinical, gross and microscopic features. Keywords: Lymphoid polyposis; Faecal fistula. DOI: http://dx.doi.org/10.3329/bsmmuj.v4i2.8643 BSMMU J 2011; 4(2):119-12

Molecular detection and antibiogram of Salmonella spp. from apparently healthy Japanese quails of three different quail farms in Mymensingh

Objective: The present study was carried out for the isolation, identification and antibiogram study of Salmonella spp. from apparently healthy Japanese quails (Coturnix japonica) at three different quail farms in Mymensingh, Bangladesh. Materials and methods: A total of 75 cloacal swab samples were randomly collected from apparently healthy Japanese quails from three different farms at Mymensingh, Bangladesh. The samples were subjected to a series of cultural and biochemical examination for the isolation of Salmonella followed by molecular detection by polymerase chain reaction (PCR). Motility of the Salmonella was performed by motility test and amplification of speF gene. The antibiogram profile of the isolates was also evaluated against commonly used antimicrobials by disc diffusion method. Results: The overall prevalence of Salmonella spp. in quails was found to be 13.33%(n=10/75). Out of the 10 isolates, seven were found to be motile. Farmwise, the prevalence of Salmonella spp. were 10%(n=3/30), 24%(n=6/25) and 5%(n=1/20) at the quail farms of Bangladesh Agricultural University (BAU), Shikarikanda and Akua, respectively. The antibiogram study revealed that all the isolates were resistant to both Erythromycin and Tetracycline. On the other hand, 100% isolates were sensitive to both Ciprofloxacin and Imipenem. Ninety percent isolates of Salmonella were resistant to Colistin sulphate. Neomycin was found to be sensitive to 80% Salmonella isolates. All the Salmonella isolates were found to be multidrug resistant (MDR). Conclusion: The presence of MDR Salmonella spp. in quails signifies public health importance of the organisms, which may be associated with food-borne illness. [J Adv Vet Anim Res 2018; 5(1.000): 60-66

Effects of gamma radiation sterilization on the structural and biological properties of decellularized corneal xenografts

To address the shortcomings associated with corneal transplants, substantial efforts have been focused on developing new modalities such as xenotransplantion. Xenogeneic corneas are anatomically and biomechanically similar to the human cornea, yet their applications require prior decellularization to remove the antigenic components to avoid rejection. In the context of bringing decellularized corneas into clinical use, sterilization is a crucial step that determines the success of the transplantation. Well-standardized sterilization methods, such as gamma irradiation (GI), have been applied to decellularized porcine corneas (DPC) to avoid graft-associated infections in human recipients. However, little is known about the effect of GI on decellularized corneal xenografts. Here, we evaluated the radiation effect on the ultrastructure, optical, mechanical and biological properties of DPC. Transmission electron microscopy revealed that gamma irradiated decellularized porcine cornea (G-DPC) preserved its structural integrity. Moreover, the radiation did not reduce the optical properties of the tissue. Neither DPC nor G-DPC led to further activation of complement system compared to native porcine cornea when exposed to plasma. Although, DPC were mechanically comparable to the native tissue, GI increased the mechanical strength, tissue hydrophobicity and resistance to enzymatic degradation. Despite these changes, human corneal epithelial, stromal, endothelial and hybrid neuroblastoma cells grew and differentiated on DPC and G-DPC. Thus, GI may achieve effective tissue sterilization without affecting critical properties that are essential for corneal transplant survival

Effects of gamma radiation sterilization on the structural and biological properties of decellularized corneal xenografts

© 2019 Acta Materialia Inc. To address the shortcomings associated with corneal transplants, substantial efforts have been focused on developing new modalities such as xenotransplantion. Xenogeneic corneas are anatomically and biomechanically similar to the human cornea, yet their applications require prior decellularization to remove the antigenic components to avoid rejection. In the context of bringing decellularized corneas into clinical use, sterilization is a crucial step that determines the success of the transplantation. Well-standardized sterilization methods, such as gamma irradiation (GI), have been applied to decellularized porcine corneas (DPC) to avoid graft-associated infections in human recipients. However, little is known about the effect of GI on decellularized corneal xenografts. Here, we evaluated the radiation effect on the ultrastructure, optical, mechanical and biological properties of DPC. Transmission electron microscopy revealed that gamma irradiated decellularized porcine cornea (G-DPC) preserved its structural integrity. Moreover, the radiation did not reduce the optical properties of the tissue. Neither DPC nor G-DPC led to further activation of complement system compared to native porcine cornea when exposed to plasma. Although, DPC were mechanically comparable to the native tissue, GI increased the mechanical strength, tissue hydrophobicity and resistance to enzymatic degradation. Despite these changes, human corneal epithelial, stromal, endothelial and hybrid neuroblastoma cells grew and differentiated on DPC and G-DPC. Thus, GI may achieve effective tissue sterilization without affecting critical properties that are essential for corneal transplant survival

Newborn signal functions in Bangladesh: identification through expert consultation and assessment of readiness among public health facilities—study protocol using Delphi technique

Introduction There is a set of globally accepted and nationally adapted signal functions for categorising health facilities for maternal services. Newborn resuscitation is the only newborn intervention which is included in the WHO recommended list of emergency obstetric care signal functions. This is not enough to comprehensively assess the readiness of a health facility for providing newborn services. In order to address the major causes of newborn death, the Government of Bangladesh has prioritised a set of newborn interventions for national scale-up, the majority of which are facility-based. Effective delivery of these interventions depends on a core set of functions (skills and services). However, there is no standardised and approved set of newborn signal functions (NSFs) based on which the service availability and readiness of a health facility can be assessed for providing newborn services. Thus, this study will be the first of its kind to identify such NSFs. These NSFs can categorise health facilities and assist policymakers and health managers to appropriately plan and adequately monitor the progress and performance of health facilities delivering newborn healthcare.Methods and analysis We will adopt the Delphi technique of consensus building for identification of NSFs and 1–2 indicator for each function while employing expert consultation from relevant experts in Bangladesh. Based on the identified NSFs and signal function indicators, the existing health facility assessment (HFA) tools will be updated, and an HFA survey will be conducted to assess service availability and readiness of public health facilities in relation to the new NSFs. Descriptive statistics (proportion) with a 95% CI will be used to report the level of service availability and readiness of public facilities regarding NSFs.Ethics and dissemination Ethical approval was obtained from Research Review and Ethical Review Committee of icddr, b (PR-17089). Results will be disseminated through meetings, seminars, conference presentations and international peer-review journal articles