Complete Rupture of Testis After Blunt Trauma.

Testicular trauma can be classified aetiologically as blunt or penetrative. Bicycles and motorbikes are considered high risk for road traffic accidents accounting for 9-17% % of all blunt trauma. We present a case of assessment and management of isolated blunt testicular trauma in a tertiary care hospital. A 36-year-old gentleman presented to the accident and emergency department with testicular pain after a road traffic accident while riding a motorcycle. On arrival, he was fully conscious and denied any other injuries. On examination, he had bruising and gross swelling of the right hemiscrotum. Ultrasound of the scrotum revealed testicular rupture and emergency exploration was undertaken which confirmed the diagnosis. Testis was non-salvageable therefore orchidectomy was done. The patient had unremarkable post-operative recovery. A majority of testicular ruptures are secondary to blunt trauma mainly caused by sport-related injuries and road traffic accidents. Ultrasonography remains a non-invasive modality to investigate testicular injuries with a sensitivity of 100%. When not available in an emergency setting, scrotal exploration should be undertaken for both diagnostic and therapeutic purposes. Surgical repair done within 72 hours yields a 90% salvage rate after which the salvage rate is reduced significantly. Tumor markers should be checked in patients managed conservatively. Early assessment and diagnosis are crucial in the management of acute testicular rupture. Early intervention can salvage injured testes and an orchidectomy can be avoided.

Hepatitis C virus/Hepatitis B virus coinfection: Current prospectives.

In endemic areas, hepatitis C virus (HCV)/hepatitis B virus (HBV) coinfection is common, and patients with coinfection have a higher risk of developing liver disease such as hepatocellular carcinoma, liver fibrosis and cirrhosis. In such cases, HCV predominates, and HBV replication is suppressed by HCV. HCV core proteins and interferons that are activated by HCV are responsible for the suppression of HBV. Immunosuppression is also seen in patients with HCV and HBV coinfections. A decrease in HCV-neutralizing antibody response and circulation of Th1-like Tfh cells is observed in patients with HCV and HBV coinfection. Both viruses interacted in the liver, and treatment of HCV/HBV coinfection is genotype-based and complex due to the interaction of both viruses. In HCV-dominant cases, direct-acting antiviral drugs and peg interferon plus ribavirin are used for the treatment, with continuous monitoring of AST and ALT. HBV-dominant cases are less common and are treated with peg interferon and nucleoside nucleotide analogues with monitoring of AST and ALT. The SVR rate in HCV-HBV coinfection is higher than that in monoinfection when treated with direct-acting antiviral drugs. But there is a risk of reactivation of HBV during and after therapy. The rate of reactivation is lower in patients treated with direct-acting antiviral drugs as compared to those treated with peg interferon plus ribavirin. Biomarkers of HBV such as HBcrAg, HBV DNA and HBVpg RNA are not effective in the prediction of HBV reactivation; only the hepatitis B surface antigen titre can be used as a biomarker for HBV reactivation. HCV can also be reactive, but this is found in very rare cases in which HBV is present and is treated first.

Combinatorial Therapeutic Potential of Stem Cells and Benzimidazol Derivatives for the Reduction of Liver Fibrosis.

(1) Background: Liver fibrosis is currently one of the top ten causes of death worldwide. Stem cells transplantation using mesenchymal stem cells (MSCs) is an alternative therapy which is used in the place of organ transplant, due to the incapacity of stem cells to endure oxidative stress in the damage site, thus affecting the healing process. The present study aimed to enhance the therapeutic potential of MSCs using combined therapy, along with the novel synthetic compounds of benzimidazol derivatives. (2) Methods: Eighteen compound series (benzimidazol derivatives) were screened against liver fibrosis using an in vitro CCl4-induced injury model on cultured hepatocytes. IC50 values were calculated on the bases of LDH assay and cell viability assay. (3) Results: Among the eighteen compounds, compounds (10), (14) and (18) were selected on the basis of IC50 value, and compound (10) was the most potent and had the lowest IC50 value in the LDH assay (8.399 ± 0.23 uM) and cell viability assay (4.73 ± 0.37 uM). Next, these compounds were combined with MSCs using an in vitro hepatocytes injury culture and in vivo rat fibrotic model. The effect of the MSCs + compounds treatment on injured hepatocytes was evaluated using LDH assay, cell viability assay, GSH assay and real-time PCR analysis and immuno-staining for caspase-3. Significant reductions in LDH level, caspase-3 and apoptotic marker genes were noted in MSCs + compounds-treated injured hepatocytes. In vivo data also showed the increased homing of the MSCs, along with compounds after transplantation. Real-time PCR analysis and TUNEL assay results also support our study. (4) Conclusions: It was concluded that compounds (10), (14) and (18) can be used in combination with MSCs to reduce liver fibrosis.

Mixed [Formula: see text]-synthesis tracking control and disturbance rejection in a robotic digit of an impaired human hand for anthropomorphic coordination.

In a partially impaired anthropomorphic hand, maintaining the movement coordination of the robotic digits with the central nervous system (CNS) and natural digits is crucial for robust performance. A challenge in the control perspective of movement coordination of a human hand is finding methods robust to the disturbances in a well-posed control problem of a biomechanical model. We use visco-elastic dynamics in the human palm frame of reference to explore the biomechanics of movement coordination to solve this control problem. Our biomechanical model incorporates the time delay due to actuation force, parametric uncertainty, exogenous disturbances, and sensory noise to constitute a 21-degree of freedom model. A mixed [Formula: see text]-synthesis controller, considering the real parametric uncertainty, represents the CNS in the control paradigm. We consider the robotic finger's flexion movement when perturbed from the initial equilibrium. The controller provides feedback force at the joints to regulate the robotic finger movement. The index finger follows a reference trajectory of the joint angular position profile and stabilizes at a flexion angle of 1 rad/s at a time of 1 s. The main control objective is to keep the angular displacement of the finger joint constant when a disturbance force acts. We simulate the modeling scheme in MATLAB/ Simulink. The results demonstrate that our controller scheme is robust against the worst-case disturbance and achieves the desired performance value. Developing a biologically inspired neurophysiological controller with robust performance has many applications, including assistive rehabilitation devices, hand movement disorder diagnosis, and robotic manipulators.

A Winning New Combination? Toward Clinical Application in Oncology.

Immunotherapy has substantial attention in oncology due to the success of CTLA-4 and PD-1 inhibitors in the treatment of melanoma, lung cancer, head and neck cancer, renal cell carcinoma, and Hodgkin's lymphoma. A deeper understanding of interaction of tumor with its environment and the immune system provides best guide for oncology research. Recent studies in oncology have explained how a tumor alters antigen presentation, avoids detection, and activation of the host immune system to live and develop. Understanding the connections between the tumor and the immune system has resulted in several innovative therapy options. The extensive field of gene therapy has provided a number of cutting-edge medicines that are expected to play an important role in lowering cancer-related mortality. This article explains the history, important breakthroughs, and future prospects for three separate gene therapy treatment modalities: immunotherapy, oncolytic virotherapy, and gene transfer. Immunotherapies have completely changed how cancer is treated, especially for individuals whose condition was previously thought to be incurable. Examples include ACT (adoptive cell therapy) and ICB (immune checkpoint blockade). This review article will discuss the relationship between the immune response to cancer and the mechanisms of immunotherapy resistance. It will cover combination drugs authorized by the US Food and Drug Administration and provide a thorough overview of how these drugs are doing clinically right now. Cytokines, vaccines, and other soluble immunoregulatory agents, innate immune modifiers, ACT, virotherapy, and other treatment modalities will all be covered in detail.

Solitary Retroperitoneal Neurofibroma Associated With Deep Vein Thrombosis in a 40-Year-Old Male.

A neurofibroma is a benign, non-encapsulated neoplasm of the peripheral nerve sheath. These tumors are a notorious manifestation of the autosomal dominant condition known as neurofibromatosis type 1, where they present as multiple, cutaneous masses with high malignant potential. On the contrary, benign solitary retroperitoneal neurofibromas (SRN) occur without any associated conditions and have rarely been documented. Our case is of a 40-year-old male who presented with a three-month history of painful calf swelling, refractory to over-the-counter painkillers which was later diagnosed as deep vein thrombosis (DVT). A computed tomography (CT) angiogram was done which revealed a mass in the retroperitoneum impinging on the inferior vena cava (IVC). Approximately one month later, the whole mass was surgically excised and histopathology confirmed the diagnosis of a neurofibroma. This case presentation proved to be novel as it highlights the evaluation and management of a rare SRN which resulted in extensive DVT.

Developing the outcomes of a baccalaureate of dental surgery programme.

BACKGROUND: Curriculum broadly falls into two categories, prescriptive and outcome-based. In the prescriptive curricula emphasis is placed on teaching with generally little integration between subjects and across disciplines. Currently, universities in Pakistan are undergoing a cultural change in the curricular design in order to apply an outcome-based learning instead of prescriptive teaching. Regionally, the need for change was recognised on account of the vast body of evidence available internationally. In order to bring about a shift towards an outcome based curriculum in the 4-year BDS programme, we first need to specify the outcomes/traits that the dental health professionals should be able to demonstrate upon leaving the programme. This paper describes the process and outcome of arriving at the desired consensus through a series of workshops involving all stakeholders including students, community members, teaching faculty, programme directors and representatives of the dental health industry. METHODS: A series of workshops were conducted between September 2009 to February 2010 in all of the 18 disciplines of basic and dental sciences individually and then collectively. A questionnaire sought responses from the participants regarding their perception about the status of the current BDS curriculum and their understanding of an outcome-based integrated curriculum, as well as whether such an integrated curriculum should be adopted or not? In the second half of the workshop through brainstorming and Delphi technique, the outcomes in terms of measurable traits that should be possessed by a graduate dental health professional entering community service were enlisted. The pre- and post-workshop questionnaire scores were entered into SPSS-16 and paired sample t-test as well as chi-square test were applied. Cron back alpha value of < 0.05 was taken as statistically significant. Secondly, the outcomes developed in each workshop were entered into Ethnograph and common outcomes of the 4-year BDS programme were extracted. RESULTS: In total, 234 participants attended the workshop over a period of five months in 18 discipline-wise workshops and four integrated workshops involving faculty members of all disciplines. Results indicate clearly that the workshop resulted in an attitude shift of the participants and their perception of the current curriculum and the need and rationale for a move towards an outcome-based curriculum. The 30 outcomes identified were grouped under two categories namely 'clinical skills' and 'professional behaviours'. CONCLUSION: Defining the final programme outcomes is only the initial step in developing an outcome-based, objective, integrated curriculum which will require considerable work in the future.