Evaluation of BR1 and BI30 AAVs for Brain Endothelial Tropism.

Brain endothelial cells are critical for homeostasis of the central nervous system. Novel adeno-associated viruses (AAV) with brain endothelial cell tropism have been developed and are beginning to be employed in mechanistic and therapeutic research. Studies using AAVs can be involved in terms of cost, time and personnel, and many groups, including our own, are not experts on the technology.

Loss of Endothelial Dysregulates Neural Function In Vivo.

Background: We recently found that loss of endothelial cell disrupts neurovascular and synaptic function. However, whether endothelial is detrimental or protective for neural function under physiological conditions is unknown. Therefore, the goal of this study was to determine the role of endothelial cell in regulating brain function in vivo.

Endothelial Cell Regulates Neurovascular, Neuronal, and Behavioral Function.

Background: Specialized brain endothelial cells and human are independently important for neurovascular function, yet whether expression by endothelial cells contributes to brain function is currently unknown. In the present study, we determined whether the loss of endothelial cell impacts brain vascular and neural function.

Methods: We developed /Cdh5(PAC)-CreERT2 () and /Cdh5(PAC)-CreERT2 (, control) mice and induced endothelial cell knockdown with tamoxifen at ≈4 to 5 weeks of age.

Nonalcoholic Fatty Liver Disease in Living Donor Liver Transplant Recipients: A Histology-Based Study.

Background: Recurrent or de novo nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) are common after liver transplantation (LT) and may be associated with rapid progression to fibrosis; however, there is limited data in this regard after living donor liver transplantation (LDLT).

Material And Methods: This is a retrospective study at a high volume LDLT center of all liver biopsies performed in patients with post-transplant NAFLD diagnosed on ultrasound of the abdomen. Liver biopsy was indicated for raised transaminases and/or high liver stiffness on TE.

Delayed Graft Dysfunction due to Invasive Hepatic Mucormycosis After Living Donor Liver Transplantation.

Mucormycosis is a rare but emerging fungal infection complicating solid organ transplantation. It is associated with a high mortality rate. We describe an unusual case of hepatic mucormycosis in a living donor liver transplant recipient presenting as delayed graft dysfunction, which was successfully treated with combination of liposomal amphotericin B and oral posaconazole therapy, without surgical resection.

Incorporating Tumor Biology to Predict Hepatocellular Carcinoma Recurrence in Patients Undergoing Living Donor Liver Transplantation Using Expanded Selection Criteria.

Conventional selection criteria for liver transplantation (LT) in patients with hepatocellular carcinoma (HCC) are based on tumour size/number only, and do not consider vital surrogates of tumor biology such as alpha-fetoprotein (AFP) and tumor [ F]fluorodeoxyglucose positron emission tomography ([ F]FDG PET) avidity. We analyzed survival outcomes, and predictors of HCC recurrence in 405 patients with cirrhosis and HCC (HCC-cirr) who underwent living donor LT (LDLT) using our expanded selection criteria: no extrahepatic disease or major vascular invasion, irrespective of tumor size/number. Fifty-one percent patients had tumours beyond Milan, and 43% beyond the University of California San Francisco [UCSF] criteria.

Restructuring Living-Donor Liver Transplantation at a High-Volume Center During the COVID-19 Pandemic.

Background: Coronavirus disease 2019 (COVID-19) pandemic has led to deferral of elective transplants and proactive pretransplant testing of the donor/recipient. The impact of these on living-donor liver transplantation (LDLT) activity and outcome is not known. We performed LDLT only for sick patients or patients with advanced hepatocellular carcinoma in this period, with special COVID protocols.

Comparative Microbiological Evaluation after Caries Removal by Various Burs.

Aim: The aim of the study was to compare the caries removal efficacy in terms of bacteriology and efficiency in terms of time taken by conventional and smart burs.

Materials And Methods: A total of 40 extracted permanent molars with occlusal caries were selected for this study. These teeth were split at the center of carious lesion buccolingually, in order to obtain two similar halves.

Survey of preoperative management protocol for perihilar cholangiocarcinoma at 10 Japanese high-volume centers with a combined experience of 2,778 cases.

Background: In Japan, strategies for preoperative management of perihilar cholangiocarcinoma (PHC) have evolved over the last decade; the operative mortality has significantly reduced to <5%.

Methods: A questionnaire was sent to 10 institutions based on their case volume. Questionnaire was based on: (1) preoperative biliary drainage, (2) bile replacement, (3) role of synbiotics, (4) remnant liver volume enhancement, (5) predicted remnant liver function, (6) imaging, (7) nutrition, and (8) role of Inchinkoto.

A Worldwide Survey of Live Liver Donor Selection Policies at 24 Centers With a Combined Experience of 19 009 Adult Living Donor Liver Transplants.

Background: Although surgical technique in living donor liver transplantation (LDLT) has evolved with a focus on donor safety and recipient challenges, the donor selection criteria remain considerably disparate.

Methods: A questionnaire on donor selection was sent to 41 centers worldwide. 24 centers with a combined experience of 19 009 LDLTs responded.

ENBD is Associated with Decreased Tumor Dissemination Compared to PTBD in Perihilar Cholangiocarcinoma.

Background: Little is known regarding the risk of tumor dissemination when percutaneous biliary drainage is used before surgical resection of perihilar cholangiocarcinoma (PHC). We aimed to compare the incidence of tumor dissemination after preoperative endoscopic nasobiliary drainage (ENBD) with that after percutaneous transhepatic biliary drainage (PTBD) for PHC.

Methods: Data from 208 consecutive patients who underwent PHC resection between 2000 and 2013 were retrospectively analyzed.

Robotic-assisted right hepatectomy via anterior approach for intrahepatic cholangiocarcinoma.

Major hepatic resection, especially right hepatectomy, has been successfully performed by specialized hepatobiliary centers using the robotic platform with low morbidity, conversion rates and outcomes comparable to laparoscopic and open surgery. The authors report a case of robotic-assisted right hepatectomy done for intrahepatic cholangiocarcinoma using anterior approach, after right portal vein embolisation for future liver remnant volume enhancement.

Parosteal lipoma of humerus-A rare case.

Introduction: Parosteal lipoma is an extremely rare benign tumor composed mainly of mature adipose tissue with a bony component.

Presentation Of Case: This study reports the case of a 65-year old woman with a big mass on the posteromedial aspect of the right upper arm since 1 year. The swelling was a slow growing, painless, nontender, immobile mass which was not fixed to skin.