Knee Surg Sports Traumatol Arthrosc
December 2016
Purpose: The goal of the study was to evaluate the repair of chondral lesions treated with combined autologous adult/allogenic juvenile cartilage fragments, compared with isolated adult and isolated juvenile cartilage fragments.
Methods: Fifty-eight adult (>16 week old) and five juvenile (<6 week old) New Zealand White female rabbits were used. A large osteochondral defect was created in the center of the femoral trochlea of adult rabbits.
Despite the therapeutic efficacy of ibrutinib in chronic lymphocytic leukemia (CLL), complete responses are infrequent, and acquired resistance to Bruton agammaglobulinemia tyrosine kinase (BTK) inhibition is being observed in an increasing number of patients. Combination regimens that increase frequency of complete remissions, accelerate time to remission, and overcome single agent resistance are of considerable interest. We previously showed that the XPO1 inhibitor selinexor is proapoptotic in CLL cells and disrupts B-cell receptor signaling via BTK depletion.
View Article and Find Full Text PDFMultiple studies show that chronic lymphocytic leukemia (CLL) cells are heavily dependent on their microenvironment for survival. Communication between CLL cells and the microenvironment is mediated through direct cell contact, soluble factors, and extracellular vesicles. Exosomes are small particles enclosed with lipids, proteins, and small RNAs that can convey biological materials to surrounding cells.
View Article and Find Full Text PDFObjective: Menopause is a risk factor for fracture; thus, menopause age may affect bone mass and fracture rates. We compared bone mineral density (BMD) and fracture rates among healthy postmenopausal women with varying ages at self-reported nonsurgical menopause.
Methods: We compared hazard ratios for fractures and differences in BMD among 21,711 postmenopausal women from the Women's Health Initiative Observational Study cohort who had no prior hysterectomy, oophorectomy, or hormone therapy and had varying self-reported ages at menopause (<40, 40-49, or ≥50 y).
Cancer Causes Control
April 2015
Purpose: To evaluate the association between statins and breast cancer stage and mortality in the Women's Health Initiative.
Methods: The study population included 128,675 postmenopausal women aged 50-79 years, out of which there were 7,883 newly diagnosed cases of in situ (19%), local (61%)-, regional (19%)- and distant (1%)-stage breast cancer and 401 deaths due to breast cancer after an average of 11.5 (SD = 3.
Flavopiridol is a small molecule inhibitor of cyclin-dependent kinases (CDK) known to impair global transcription via inactivation of positive transcription elongation factor b. It has been demonstrated to have significant activity predominantly in chronic lymphocytic leukemia and acute myeloid leukemia in phase I/II clinical trials while other similar CDK inhibitors are vigorously being pursued in pre-clinical and clinical studies. Although flavopiridol is a potent therapeutic agent against blood diseases, some patients still have primary or acquired resistance throughout their clinical course.
View Article and Find Full Text PDFBackground: Pulmonary hypertension (PH) is a comorbidity associated with idiopathic pulmonary fibrosis (IPF). There is limited research regarding the effect on survival after lung transplantation (LTx).
Methods: To assess the effect of PH on survival in patients with IPF who received LTx, the United Network for Organ Sharing was queried for eligible patients with recorded mean (PAmean) and systolic (PAsystolic) pulmonary artery pressure.
Objective: This study aims to estimate the effects of bilateral salpingo-oophorectomy (BSO) at the time of hysterectomy and estrogen therapy on vaginal prolapse.
Methods: A retrospective analysis of the Women's Health Initiative estrogen-alone trial was performed. Women who retained their ovaries were compared with women who had BSO at the time of hysterectomy for the presence of cystocele or rectocele at entry into the study.
Treatment options for patients with Epstein-Barr Virus-driven lymphoproliferative diseases (EBV-LPD) are limited. Chemo-immunotherapeutic approaches often lead to immune suppression, risk of lethal infection and EBV reactivation, thus it is essential to identify agents that can deliver direct anti-tumor activity while preserving innate and adaptive host immune surveillance. Silvestrol possesses direct anti-tumor activity in multiple hematologic malignancies while causing minimal toxicity to normal mononuclear cells.
View Article and Find Full Text PDFPurpose: The purposes of this population management intervention were to identify patients with stage 3, 4, or 5 chronic kidney disease (CKD) and to improve care in a patient-centered medical home (PCMH). Objectives of the intervention were to (i) increase the identification of CKD, (ii) increase the use of aspirin and angiotensin-converting enzyme inhibitors (ACE-Is) or angiotensin II receptor blockers (ARBs) in patients with CKD, and (iii) ensure that all medications prescribed to patients with CKD were dosed appropriately based on renal function.
Setting: This intervention was completed at a National Committee for Quality Assurance tier 3 PCMH associated with a major, academic health system.
Aberrant regulation of endogenous survival pathways plays a major role in progression of chronic lymphocytic leukemia (CLL). Signaling via conjugation of surface receptors within the tumor environmental niche activates survival and proliferation pathways in CLL. Of these, the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway appears to be pivotal to support CLL pathogenesis, and pharmacologic inhibitors targeting this axis have shown clinical activity.
View Article and Find Full Text PDFBackground: Malaria is among the most common causes of death along Lake Tanganyika, a problem which many aid organizations have attempted to combat through the distribution of free mosquito bed nets to high-risk communities. The Lake Tanganyika Floating Health Clinic (LTFHC), a health-based non-governmental organization (NGO), has observed residents of the Lake Tanganyika basin using bed nets to fish small fry near the shoreline, despite a series of laws that prohibit bed net use and other fine-gauge nets for fishing, implemented to protect the near-shore fish ecology. The LTFHC sought to quantify the sources of bed nets and whether they were being used for fishing.
View Article and Find Full Text PDFIntroduction: The impact of induction immunosuppression on long-term survival in heart transplant recipients is unclear. Over the past three decades, practices have varied as induction agents have changed and experiences grew. We sought to evaluate the effect of contemporary induction immunosuppression agents in heart transplant recipients with the primary endpoint of survival, utilizing national registry data.
View Article and Find Full Text PDFChronic graft-versus-host disease (cGVHD) is a life-threatening impediment to allogeneic hematopoietic stem cell transplantation, and current therapies do not completely prevent and/or treat cGVHD. CD4+ T cells and B cells mediate cGVHD; therefore, targeting these populations may inhibit cGVHD pathogenesis. Ibrutinib is an FDA-approved irreversible inhibitor of Bruton's tyrosine kinase (BTK) and IL-2 inducible T cell kinase (ITK) that targets Th2 cells and B cells and produces durable remissions in B cell malignancies with minimal toxicity.
View Article and Find Full Text PDFChronic lymphocytic leukemia (CLL) displays constitutive phosphatidylinositol 3-kinase (PI3K) activation resulting from aberrant regulation of B-cell receptor (BCR) signaling. Previous studies have shown that an oral PI3K p110δ inhibitor idelalisib exhibits promising activity in CLL. Here, we demonstrate that a dual PI3K p110δ and p110γ inhibitor, IPI-145, antagonizes BCR crosslinking activated prosurvival signals in primary CLL cells.
View Article and Find Full Text PDFThe definition of tumor deposits (TDs) in colonic adenocarcinoma has been modified in different editions of the AJCC/TNM staging system. Studies have shown that the presence of TD is associated with advanced tumor growth and poor prognosis. Most of these data were obtained in patients with simultaneous lymph node (LN) metastases.
View Article and Find Full Text PDFThe retinoid X receptor (RXR) partners with numerous nuclear receptors, such as the peroxisome proliferator activated receptor (PPAR) family, liver X receptors (LXRs), and farnesoid X receptor (FXR). Although each heterodimer can be activated by specific ligands, a subset of these receptors, defined as permissive nuclear receptors, can also be activated by RXR agonists known as rexinoids. Many individual RXR heterodimers have beneficial effects in vascular smooth muscle cells (SMCs).
View Article and Find Full Text PDFNotch signaling determines and reinforces cell fate in bilaterally symmetric multicellular eukaryotes. Despite the involvement of Notch in many key developmental systems, human mutations in Notch signaling components have mainly been described in disorders with vascular and bone effects. Here, we report five heterozygous NOTCH1 variants in unrelated individuals with Adams-Oliver syndrome (AOS), a rare disease with major features of aplasia cutis of the scalp and terminal transverse limb defects.
View Article and Find Full Text PDFAdams-Oliver syndrome (AOS) is a rare malformation syndrome characterized by the presence of two anomalies: aplasia cutis congenita of the scalp and transverse terminal limb defects. Many affected individuals also have additional malformations, including a variety of intracranial anomalies such as periventricular calcification in keeping with cerebrovascular microbleeds, impaired neuronal migration, epilepsy, and microcephaly. Cardiac malformations can be present, as can vascular dysfunction in the forms of cutis marmorata telangiectasia congenita, pulmonary vein stenoses, and abnormal hepatic microvasculature.
View Article and Find Full Text PDFTargeting B-cell receptor (BCR) signaling in chronic lymphocytic leukemia (CLL) has been successful with durable remissions observed with several targeted therapeutics. Protein kinase C-β (PKC-β) is immediately downstream of BCR and has been shown to be essential to CLL cell survival and proliferation in vivo. We therefore evaluated sotrastaurin (AEB071), an orally administered potent PKC inhibitor, on CLL cell survival both in vitro and in vivo.
View Article and Find Full Text PDFBackground: Despite resistant microbes, induction immunosuppression is used in patients with cystic fibrosis (CF) undergoing lung transplantation (LTx).
Methods: To evaluate the effect of induction immunosuppression on survival, the United Network for Organ Sharing (UNOS) was queried restricting analysis to transplant patients 6-55years old from 2001 to 2012, who received induction agents (INDUCED) or did not (NONE).
Results: A total of 1721 CF patients who underwent LTx were included in the analysis; of these 791 (46%) were INDUCED.
Unlabelled: Macrophage migration inhibitory factor (MIF) is a homotrimeric proinflammatory cytokine implicated in chronic inflammatory diseases and malignancies, including cutaneous squamous cell carcinomas (SCC). To determine whether MIF inhibition could reduce UVB light-induced inflammation and squamous carcinogenesis, a small-molecule MIF inhibitor (CPSI-1306) was utilized that disrupts homotrimerization. To examine the effect of CPSI-1306 on acute UVB-induced skin changes, Skh-1 hairless mice were systemically treated with CPSI-1306 for 5 days before UVB exposure.
View Article and Find Full Text PDFIntroduction: The impact of induction immunosuppression on long-term survival in lung transplant recipients remains unclear. We sought to evaluate the effect of contemporary induction immunosuppression agents in lung transplant recipients' survival, utilizing national registry data.
Methods: We queried the United Network for Organ Sharing registry from 2001 to 2012 for adult, deceased donor lung transplants who received no antibody-based induction (NONE) or the contemporary agents of basiliximab, alemtuzumab, thymoglobulin, antilymphocyte globulin, or antithymocyte globulin (INDUCED).
Arch Dis Child Fetal Neonatal Ed
July 2014
Introduction: Cleft lip with or without palate (CLP) can be diagnosed antenatally through ultrasound, and may be categorised as apparently isolated versus associated with other malformations. Limited data exist on the long-term outcomes following antenatal diagnosis of apparently isolated CLP.
Aim: This study examined the long-term post-natal outcomes of CLP when found in isolation antenatally, in order to determine the rates of unexpected additional anomalies, developmental delay or genetic syndromes.