Recent advances in the bcr-abl negative chronic myeloproliferative diseases

The chronic myeloproliferative disorders are clonal hematopoietic stem cell disorders of unknown etiology. In one of these (chronic myeloid leukemia), there is an associated pathognomonic chromosomal abnormality known as the Philadelphia chromosome. This leads to constitutive tyrosine kinase activity which is responsible for the disease and is used as a target for effective therapy. This review concentrates on the search in the other conditions (polycythemia vera, essential thrombocythemia and idiopathic mylofibrosis) for a similar biological marker with therapeutic potential. There is no obvious chromosomal marker in these conditions and yet evidence of clonality can be obtained in females by the use of X-inactivation patterns. PRV-1mRNA over expression, raised vitamin B(12 )levels and raised neutrophil alkaline phosphatase scores are evidence that cells in these conditions have received excessive signals for proliferation, maturation and reduced apoptosis. The ability of erythroid colonies to grow spontaneously without added external erythropoietin in some cases, provided a useful marker and a clue to this abnormal signaling. In the past year several important discoveries have been made which go a long way in elucidating the involved pathways. The recently discovered JAK2 V617F mutation which occurs in the majority of cases of polycythemia vera and in about half of the cases with the two other conditions, enables constitutive tyrosine kinase activity without the need for ligand binding to hematopoietic receptors. This mutation has become the biological marker for these conditions and has spurred the development of a specific therapy to neutralize its effects. The realization that inherited mutations in the thrombopoietin receptor (c-Mpl) can cause a phenotype of thrombocytosis such as in Mpl Baltimore (K39N) and in a Japanese family with S505A, has prompted the search for acquired mutations in this receptor in chronic myeloproliferative disease. Recently, two mutations have been found; W515L and W515K. These mutations have been evident in patients with essential thrombocythemia and idiopathic myelofibrosis but not in polycythemia vera. They presumably act by causing constitutional, activating conformational changes in the receptor. The discovery of JAK2 and Mpl mutations is leading to rapid advancements in understanding the pathophysiology and in the treatment of these diseases

Benefits and Barriers to Teaching Medical Students in an Ob-Gyn Clinic

Introduction: As the US health-care system has evolved over the past decade, access to obstetric care in rural communities has declined, and there has been a challenge in retaining obstetrics and gynecology (OB-GYN) providers to train the next generation of physicians. The current pilot study sought to identify the factors that influence faculty who train medical students within the field of OB-GYN with the hope of influencing recruitment and retention of providers for the future. Methods: Clinical OB-GYN faculty within the University of Washington School of Medicine regional medical education program were surveyed about practice patterns and beliefs regarding medical student training as part of a pilot study on provider recruitment and retention. Results: Fifty-seven eligible respondents completed the survey. Most (88.9%) reported their hospitals encourage student participation in patient care. Students in their practices participate in many aspects of patient care, including conducting exams (96.2%) and participating in the operating room (94.3%). The majority found the rewarding aspects of teaching medical students to be intellectual stimulation (90.9%), continuing the tradition of medical teaching (87.5%), and the intrinsic satisfaction of teaching (83.6%). Challenging aspects of teaching included reduced reimbursement (40%) and the student/workload (63.6%). Discussion: Medical student education continues to rely on a generation’s medical professionals to impart their knowledge to the next. We hope that with a better understanding of the benefits of participation and minimization of the challenges, we can perpetuate this tradition despite the uncertainty in our health-care system

New Partner Recruitment to Rural Versus Urban Ob-Gyn Practices

Purpose: The purpose of this pilot study was to investigate the recruitment efforts of practicing obstetrics and gynecology (ob-gyns) from rural and urban practices. Method: The authors surveyed practicing ob-gyns from 5 states in the Pacific Northwest in 2016 about their background, practice setting, practice profile, partner recruitment, and retention. Results: Seventy-three patients completed the study (53.2% response rate). Thirty-seven percent of respondents work in an urban practice and 43% have a rural practice, with the remainder in a suburban setting. A majority of the respondents attempted to recruit a new partner in the past 5 years. Respondents were most interested in experience and diversity in new recruits. Urban respondents, however, were more interested in hiring those with specialized skills (χ 2 = 7.842, P = .02) than rural providers who were more interested in partners familiar with their community (χ 2 = 7.153, P = .03). Reasons most often cited to leave their practice were reimbursement, limited social/marital options, and workload, other than rural providers who more often also cited lack of access to specialty care (χ 2 = 13.256, P = .001). Rural providers were more likely to cite marital and family status as an advantage to recruitment, whereas urban and suburban providers were more often neutral. Conclusions: Reduced access to care has led to significant health disparities for women living in rural communities. Understanding which providers are most likely to be successful in these settings might help preserve access as our health-care systems evolves