Radiolabeled Rhein as Small-Molecule Necrosis Avid Agents for Imaging of Necrotic Myocardium.

A rapid and accurate identification of necrotic myocardium is of great importance for diagnosis, risk stratification, clinical decision-making, and prognosis evaluation of myocardial infarction. Here, we explored technetium-99m labeled rhein derivatives for rapid imaging of the necrotic myocardium. Three hydrazinonicotinic acid-linker-rhein (HYNIC-linker-rhein) derivatives were synthesized, and then, these synthetic compounds were labeled with technetium-99m using ethylenediaminediacetic acid (EDDA) and tricine as coligands [99mTc(EDDA)-HYNIC-linker-rhein]. The necrosis avidity of the three 99mTc-labeled rhein derivatives was tested in a mouse model of ethanol-induced muscular necrosis by gamma counting, histochemical staining, and autoradiography. A lead tracer for visualization of necrotic myocardium was assessed by single photon emission computed tomography/computed tomography (SPECT/CT) imaging in a rat model with reperfused myocardial infarction. The necrosis avidity mechanism of the tracer was explored by DNA binding studies in vitro and blocking experiments in vivo. Results showed that the uptake in necrotic muscles of the three 99mTc-compounds was higher than that in viable muscles (P < 0.001). Autoradiography and histochemical staining results were consistent with selective uptake of the radiotracer in the necrotic regions. Among the these tracers, 99mTc(EDDA)-HYNIC-ethylenediamine-rhein [99mTc(EDDA)-HYNIC-2C-rhein] displayed the best distribution profiles for imaging. The necrotic myocardium lesions were clearly visualized by SPECT/CT using 99mTc(EDDA)-HYNIC-2C-rhein at 1 h after injection. The necrotic-to-viable myocardium and necrotic myocardium-to-blood uptake ratios of 99mTc(EDDA)-HYNIC-2C-rhein were 4.79 and 3.02 at 1 h after injection. DNA binding studies suggested HYNIC-linker-rhein bound to DNA through intercalation. The uptake of 99mTc(EDDA)-HYNIC-2C-rhein in necrotic muscle was significantly blocked by excessive unlabeled rhein, with 77.61% decline at 1 h after coinjection. These findings suggested 99mTc(EDDA)-HYNIC-2C-rhein emerged as a "hot spot" imaging probe that has a potential for rapid imaging of necrotic myocardium. The necrosis avidity mechanism of 99mTc(EDDA)-HYNIC-linker-rhein may be due to its interaction with exposed DNA in necrotic tissues.

Inpatient glycemic management in internal medicine: an observational multicenter study in Nanjing, China.

AIMS: To evaluate the prevalence of hyperglycemia among inpatients in internal medicine, and specifically, to assess the glycemic management of inpatients in non-endocrinology departments in three large urban hospitals in China. METHODS: A multicenter observational study was conducted using electronic health records, and a survey of 1939 patients who were admitted to internal medicine units and followed until discharge. Those with previously diagnosed diabetes, newly diagnosed diabetes, or impaired fasting glucose were included. Aspects of glycemic management examined were (a) hyperglycemia, (b) endocrinology consultation for hyperglycemia and (c) hypoglycemia. RESULTS: The prevalence of hyperglycemia in internal medicine was 45.7% (886 out of 1939). A total of 741 (83.6%) patients were treated by non-endocrinology departments; of those, 230 (31.1%) were in poor glycemic control and needed an endocrinology consultation. Yet only 57 (24.8%) received one. In 4 cases, the physician did not follow the consultants' advice. Among the remaining 53 consulted patients, 35 (66.1%) were still in poor glycemic control, yet only about half received a second consultation. Finally, among patients treated in non-endocrinology departments, 58 (7.8%) had hypoglycemia; less than half retested their blood glucose after treatment. CONCLUSIONS: The majority of patients with hyperglycemia were in non-endocrinology departments. Their glycemic management was poor; the endocrinology consultation rate was low and the result was suboptimal. Also, the management of hypoglycemia was not ideal. Therefore, improving glycemic management is urgently needed in Chinese hospitals.

Frequency, severity, and risk factors related to sexual dysfunction in Chinese women with T2D.

BACKGROUND: The aim of the present study was to assess the frequency and severity of female sexual dysfunction (FSD) in those with T2D (T2D) compared with non-diabetic controls. In addition, risk factors for FSD were analyzed. METHODS: Sexual dysfunction, measured using the Female Sexual Function Index (FSFI), was evaluated using a questionnaire in 184 women with T2D and 146 non-diabetic controls at three study sites in China. In the T2D group, FSD was examined by education level, correlations between FSD and other variables were analyzed, and risk factors were studied. RESULTS: The frequency of FSD in the T2D group was 75.0%, much higher than in the control group (56.2%; P = 0.001). The severity of FSD in the T2D group was 17.84 ± 8.47 (mean ± SD), significantly lower than in the control group (21.14 ± 8.08; P = 0.001). In patients with T2D, being older (P = 0.001), taking oral antidiabetic medications (P = 0.013), and having diabetic neuropathy (P = 0.036) were risk factors for FSD. CONCLUSIONS: The rate of FSD is high in China and, as seen in the literature, more severe in diabetics than non-diabetics. Being older, taking oral antidiabetic medications, and diabetic neuropathy are risk factors for FSD.

Effect of case management on glycemic control and behavioral outcomes for chinese people with type 2 diabetes: A 2-year study.

OBJECTIVE: To examine the effect of case management on glycemic control and behavioral outcomes in adults with Type 2 diabetes in China. METHODS: Participants were randomly assigned to a 1-year case management (CM) group (n=60) or control group (n=60). Monthly case management visits included identifying individuals' diabetes-related problems, setting goals, planning self-care, and evaluating progress. During a 1-year follow-up, all participants attended visits every 3 months without intervention. RESULTS: In the CM vs. the control group, HbA1c was reduced at 6 months compared to baseline (P=0.034), with trends at 12 and 24 months, and empowerment ability improved (P<0.05). Also in the CM vs. controls, total self-care behaviors, the frequency of exercise, blood glucose testing, and foot care were higher (P<0.001) at 12 months, and the percentage of individuals with HbA1c ≤7.0% was higher (P=0.035) at 24 months. CONCLUSION: The case management intervention in China was effective at 6 months and, based on trends in HbA1c at 12 and 24 months and results for behavioral outcomes, the intervention shows promise and warrants more research. PRACTICE IMPLICATIONS: A case management approach can enhance behavior change and glycemic control in Chinese with diabetes.

The clinical nurse specialist as resuscitation process manager.

PURPOSE/OBJECTIVES: The purpose of this article was to describe the history and leadership dimensions of the role of resuscitation process manager and provide specific examples of how this role is implemented at a Midwest medical center. BACKGROUND: In 1992, a medical center in the Midwest needed a nurse to manage resuscitation care. RATIONALE: This role designation meant that this nurse became central to all quality improvement efforts in resuscitation care. The role expanded as clinical resuscitation guidelines were updated and as the medical center grew. The role became known as the critical care clinical nurse specialist as resuscitation process manager. This clinical care nurse specialist was called a manager, but she had no direct line authority, so she accomplished her objectives by forming a multitude of collaborative networks. DESCRIPTION: Based on a framework by Finkelman, the manager role incorporated specific leadership abilities in quality improvement: (1) coordination of medical center-wide resuscitation, (2) use of interprofessional teams, (3) integration of evidence into practice, and (4) staff coaching to develop leadership. OUTCOME: The manager coordinates resuscitation care with the goals of prevention of arrests if possible, efficient and effective implementation of resuscitation protocols, high quality of patient and family support during and after the resuscitation event, and creation or revision of resuscitation policies for in-hospital and for ambulatory care areas. The manager designs a comprehensive set of meaningful and measurable process and outcome indicators with input from interprofessional teams. The manager engages staff in learning, reflecting on care given, and using the evidence base for resuscitation care. Finally, the manager role is a balance between leading quality improvement efforts and coaching staff to implement and sustain these quality improvement initiatives. CONCLUSION: Revisions to clinical guidelines for resuscitation care since the 1990s have resulted in medical centers developing improved resuscitation processes that require management. The manager enhances collaborative quality improvement efforts that are in line with Institute of Medicine recommendations. IMPLICATIONS: The role of resuscitation process manager may be of interest to medical centers striving for excellence in evidence-based resuscitation care.

Wellness in community living adults: the Weigh to Life program.

OBJECTIVE: To examine physiological and health-related quality of life (HRQOL) outcomes in community living adults attending a 12-week combined lifestyle wellness program. METHODS: A sample of overweight and obese adults (n=319) and a subgroup who also had diabetes (n=46 of 319) were studied. The program focuses on dietary, physical activity, and behavioral strategies to promote cardiovascular health. Baseline and 12-week measures were obtained. RESULTS: In the total sample, all physiological and HRQOL outcomes improved (p<.05), except HDL. High attendance was associated with the highest weight loss. In the diabetic subgroup, weight, steps/day, low density lipoprotein, and most aspects of HRQOL improved significantly. CONCLUSION: Physiological and HRQOL benefits can be gained from a 12-week combined lifestyle program; greater benefits were obtained with higher attendance. Although the diabetic subgroup was not large, positive outcomes were realized. PRACTICE IMPLICATIONS: The 12-week combined lifestyle program shows promise for improving outcomes in community living overweight and obese adults who may also be diabetic. By attending class, participants are reminded about strategies they are to apply during the 12-week program and, by program end, they are equipped with a tool kit of strategies for use in everyday life.