Range and Frequency of Congenital Malformations Among Children With Cleft Lip and/or Palate.

To assess the range and frequency of additional congenital malformations identified among children born alive with CL/P.Analysis of patient-level data from a national registry of cleft births linked to national administrative data of hospital admissions.National Health Service, England.Children born between 2000 and 2012 receiving cleft care in English NHS hospitals.The proportion of children with ICD-10 codes for additional congenital malformations, according to cleft type.The study included 9403 children. Of these 2114 (22.5%) had CL±A, 4509 (48.0%) had CP, 1896 (20.2%) had UCLP, and 884 (9.4%) had BCLP. A total of 3653 (38.8%) children had additional congenital malformations documented in their hospital admission records. The prevalence of additional congenital malformations was greatest among children with CP (53.0%), followed by those with BCLP (33.5%), UCLP (26.3%), and then CL±A (22.2%) (P < .001). Among those with UCLP, children with right-sided clefts were more likely to have additional malformations than those with left-sided clefts (31.6% vs 23.0%, P < .001). Malformations of the skeletal system and circulatory system were most common, affecting 10.5% and 10.2% of the included children, respectively. A total of 16.8% of children had additional congenital malformations affecting 2 or more structural systems.Congenital malformations are common among children born alive with a cleft, affecting over half of some cleft subgroups. Given the frequency of certain structural malformations, clinicians should consider standardized screening for these children. Establishing good links with pediatric and genetic services is recommended.

The prevalence of faecal incontinence in myotonic dystrophy type 1.

Faecal incontinence is recognised as a feature of myotonic dystrophy along with other symptoms of bowel dysfunction, but its prevalence is poorly defined. We have surveyed 152 unselected myotonic dystrophy patients. We identified issues with bowel control in 104 (68% of the study population). Forty-eight (32%) reported faecal incontinence in the 4 weeks prior to completion of the questionnaire. Fifty-six patients (37%) reported having to change their lifestyle because of incontinence issues at some point in the prior 4 weeks. This study shows a high frequency of life-changing symptoms in a large unselected, cohort of patients with myotonic dystrophy type 1, and highlights lower gastrointestinal symptoms as an important issue for further research.

Maraviroc decreases CCL8-mediated migration of CCR5(+) regulatory T cells and reduces metastatic tumor growth in the lungs.

Regulatory T cells (Tregs) play a crucial physiological role in the regulation of immune homeostasis, although recent data suggest Tregs can contribute to primary tumor growth by suppressing antitumor immune responses. Tregs may also influence the development of tumor metastases, although there is a paucity of information regarding the phenotype and function of Tregs in metastatic target organs. Herein, we demonstrate that orthotopically implanted metastatic mammary tumors induce significant Treg accumulation in the lungs, which is a site of mammary tumor metastasis. Tregs in the primary tumor and metastatic lungs express high levels of C-C chemokine receptor type 5 (CCR5) relative to Tregs in the mammary fat pad and lungs of tumor-free mice, and Tregs in the metastatic lungs are enriched for CCR5 expression in comparison to other immune cell populations. We also identify that C-C chemokine ligand 8 (CCL8), an endogenous ligand of CCR5, is produced by F4/80(+) macrophages in the lungs of mice with metastatic primary tumors. Migration of Tregs toward CCL8 ex vivo is reduced in the presence of the CCR5 inhibitor Maraviroc. Importantly, treatment of mice with Maraviroc (MVC) reduces the level of CCR5(+) Tregs and metastatic tumor burden in the lungs. This work provides evidence of a CCL8/CCR5 signaling axis driving Treg recruitment to the lungs of mice bearing metastatic primary tumors, representing a potential therapeutic target to decrease Treg accumulation and metastatic tumor growth.

Mediators of antiretroviral adherence: a multisite international study.

The purpose of this study was to investigate the effects of stressful life events (SLE) on medication adherence (3 days, 30 days) as mediated by sense of coherence (SOC), self-compassion (SCS), and engagement with the healthcare provider (eHCP) and whether this differed by international site. Data were obtained from a cross-sectional sample of 2082 HIV positive adults between September 2009 and January 2011 from sites in Canada, China, Namibia, Puerto Rico, Thailand, and US. Statistical tests to explore the effects of stressful life events on antiretroviral medication adherence included descriptive statistics, multivariate analysis of variance, analysis of variance with Bonferroni post-hoc analysis, and path analysis. An examination by international site of the relationships between SLE, SCS, SOC, and eHCP with adherence (3 days and 30 days) indicated these combined variables were related to adherence whether 3 days or 30 days to different degrees at the various sites. SLE, SCS, SOC, and eHCP were significant predictors of adherence past 3 days for the United States (p = < 0.001), Canada (p = 0.006), and Namibia (p = 0.019). The combined independent variables were significant predictors of adherence past 30 days only in the United States and Canada. Engagement with the provider was a significant correlate for antiretroviral adherence in most, but not all, of these countries. Thus, the importance of eHCP cannot be overstated. Nonetheless, our findings need to be accompanied by the caveat that research on variables of interest, while enriched by a sample obtained from international sites, may not have the same relationships in each country.

Questionnaire-based assessment of owner concerns and doctor responsiveness: 107 canine chemotherapy patients.

OBJECTIVE: To quantify owner concerns regarding clinical signs in canine patients receiving chemotherapy and to assess degree of concordance between client and veterinarian concerns regarding patient quality of life. METHODS: Retrospective analysis of owner-reported concerns during chemotherapy treatment. Owner-reported adverse events were recorded sequentially for each patient through a partially open design questionnaire and correlated with veterinary patient summaries for each visit. Canine patients treated for transitional cell carcinoma, haemangiosarcoma, malignant melanoma or osteosarcoma were eligible for inclusion. Minimum treatment eligibility was two chemotherapy treatments given in 21-day protocol cycles, with a maximum of six treatment cycles recorded. RESULTS: A total of 553 evaluable visits, seen by 18 oncology clinicians, were assessed. Owners expressed concern before chemotherapy in 48% of visits. Owner concerns at the first visit did not differ significantly from those expressed at the sixth visit. Remission status was a significant factor in owners' rate of reporting concerns. Diarrhoea grade was associated with owners' concerns. Clinician gender was not associated with responsiveness to owners' concerns. CLINICAL SIGNIFICANCE: Questionnaire-based surveys appear to be an effective tool for communicating dog owners' concerns regarding chemotherapy and potentially for monitoring a clinician's attentiveness. Owners expressed concerns at approximately half of chemotherapy appointments.

Prevalence, correlates, and self-management of HIV-related depressive symptoms.

Depressive symptoms are highly prevalent yet undertreated in people living with HIV/AIDS (PLHAs). As part of a larger study of symptom self-management (N=1217), this study examined the prevalence, correlates, and characteristics (intensity, distress, and impact) of depressive symptoms, and the self-care strategies used to manage those symptoms in PLHAs in five countries. The proportion of respondents from each country in the total sample reporting depressive symptoms in the past week varied and included Colombia (44%), Norway (66%), Puerto Rico (57%), Taiwan (35%), and the USA (56%). Fifty-four percent (n=655) of the total sample reported experiencing depressive symptoms in the past week, with a mean of 4.1 (SD 2.1) days of depression. Mean depression intensity 5.4 (SD 2.7), distressfulness 5.5 (SD 2.86), and impact 5.5 (SD 3.0) were rated on a 1-10 scale. The mean Center for Epidemiologic Studies Depression Scale score for those reporting depressive symptoms was 27 (SD 11; range 3-58), and varied significantly by country. Respondents identified 19 self-care behaviors for depressive symptoms, which fell into six categories: complementary therapies, talking to others, distraction techniques, physical activity, medications, and denial/avoidant coping. The most frequently used strategies varied by country. In the US sample, 33% of the variance in depressive symptoms was predicted by the combination of education, HIV symptoms, psychological and social support, and perceived consequences of HIV disease.

Development of monoclonal antibodies to detect bovine FOXP3 in PBMCs exposed to a staphylococcal superantigen.

The role of regulatory T cells (Tregs) is well documented in immune homeostasis and protection against autoimmune disease. Forkhead box protein 3 (FOXP3) has been shown to be essential for the development and function of T(reg). Due to the lack of tools for FOXP3 detection in certain species, understanding the role of Treg in a variety of ruminant diseases has been hampered. In this study, we developed monoclonal antibodies (mAbs) against bovine FOXP3 using recombinant bovine FOXP3 lacking the forkhead domain as an immunogen. The specificity of the mAbs was confirmed by immunoblot and mass spectrometry. Expression of FOXP3 was induced in bovine PBMCs after 6 d of exposure to staphylococcal enterotoxin type C1 (SEC1) in vitro. Similar to findings in mice and humans, expression of FOXP3 was restricted to CD4+ CD25+ T cells. Transcriptional analysis of bovine TCR variable regions of the beta chain (boVbeta) showed that transcription of boVbeta sequences reactive with SEC1 increased for 6 d, and then boVbeta sequences non-reactive with SEC1 rapidly increased in the cultures. This indicates that induction of FOXP3+ CD4+ CD25+ Tregs by SEC1 is not Vbeta restricted. The FOXP3 mAbs developed in this study will be useful in the further investigation of the role of Treg in staphylococcal pathogenesis in bovine mastitis and other ruminant diseases.

HIV illness representation as a predictor of self-care management and health outcomes: a multi-site, cross-cultural study.

Research has shown that the perceptions that form the cognitive representation of an illness (illness representation) are fundamental to how persons cope with illness. This study examined the relationship of illness representation of HIV with self-care behavior and health outcomes. Data were collected at 16 sites in the United States, Taiwan, Norway, Puerto Rico and Colombia via survey. HIV seropositive participants (n = 1,217, 31% female, 38% African-American/Black, 10% Asian/Pacific Islander and 26% White/Anglo) completed measures of illness representation based on the commonly accepted five-component structure: identity, time-line, consequences, cause, and cure/controllability (Weinman et al. 1996, Psychology and Health, 11, 431-445). Linear regression analyses were conducted to investigate relationships among illness representation, self-care behaviors and quality-of-life outcomes. Components of illness representation were associated with self-care and health outcomes, indicating that the cognitive representation of HIV has consequences for effective illness management. For example, perception that there is little that can be done to control HIV was significantly associated with fewer and less effective self-care activities (F = 12.86, P < .001) and poorer health function in the domain of quality-of-life (F = 13.89, P < .001). The concept of illness representation provides a useful framework for understanding HIV symptom management and may be useful in directing development of effective patient-centered interventions.

Unhealthy behaviours for self-management of HIV-related peripheral neuropathy.

The prevalence of peripheral neuropathy is frequent in HIV disease and is often associated with antiretroviral therapy. Unhealthy behaviours, particularly substance-use behaviours, are utilized by many HIV-positive individuals to manage neuropathic symptoms. As part of a larger study on self-care for symptoms in HIV disease, this study analyzed the prevalence and characteristics of unhealthy behaviours to self-manage peripheral neuropathy in HIV disease. Sociodemographic and disease-related correlates and unhealthy behaviours were examined in a convenience sample of 1,217 respondents who were recruited from data collection sites in several US cities, Puerto Rico, Colombia, and Taiwan. Results of the study indicated that respondents with peripheral neuropathy (n=450) identified a variety of unhealthy self-care behaviours including injection drug use, oral drug use, smoking cigarettes and alcohol ingestion. Specific unhealthy behaviours that participants reported to alleviate peripheral neuropathy included use of marijuana (n=67), smoking cigarettes (n=139), drinking alcohol (n=81) and street drugs (n=30). A subset of those individuals (n=160), who identified high levels of neuropathy (greater than five on a scale of 1-10), indicated significantly higher use of amphetamines and injection drug use in addition to alcohol use and cigarette smoking. For participants from Norway, substance use (using alcohol: 56%) was one of the most frequent self-management strategies. Implications for clinical practice include assessment and education of persons with HIV for self-care management of the complex symptom of peripheral neuropathy.

Symptom management and self-care for peripheral neuropathy in HIV/AIDS.

Peripheral neuropathy is the most common neurological complication in HIV and is often associated with antiretroviral therapy. As part of a larger study on self-care for symptoms in HIV disease, this study analyzed the prevalence and characteristics of peripheral neuropathy in HIV disease, sociodemographic and disease-related correlates and self-care strategies. A convenience sample of 1,217 respondents was recruited from data collection sites in several US cities, Puerto Rico, Colombia and Taiwan. Results of the study indicated that respondents with peripheral neuropathy (n=450) identified 20 self-care behaviors including complementary therapies, use of medications, exercise and rest and/or elevation of extremities. Ratings of frequency and effectiveness were also included. An activities checklist summarized into five categories of self-care behaviors including activities/thoughts, exercise, medications, complementary therapies and substance was used to determine self-care behaviors. Taking a hot bath was the most frequent strategy used by those with peripheral neuropathy (n=292) and received the highest overall rating of effectiveness of any self-management strategies included in this study at 8.1 (scale 1-10). Other self-care strategies to manage this symptom included: staying off the feet (n=258), rubbing the feet with cream (n=177), elevating the feet (n=236), walking (n=262), prescribed anti-epileptic agent (n=80), prescribed analgesics (n=84), over-the-counter medications (n=123), vitamin B (n=122), calcium supplements (n=72), magnesium (n=48), massage (n=156), acupuncture (n=43), reflexology (n=23) and meditation (n=80). Several behaviors that are often deemed unhealthy were included among the strategies reported to alleviate peripheral neuropathy including use of marijuana (n=67), cigarette smoking (n=139), drinking alcohol (n=81) and street drugs (n=30).

Immunohistochemical study of experimental malignant catarrhal fever in rabbits.

Malignant catarrhal fever (MCF) is an often-fatal lymphoproliferative disease of a variety of ungulates that occurs worldwide. It is caused by either of the highly related but distinct gammaherpesviruses alcelaphine herpesvirus-1 (AlHV-1, wildebeest reservoir) or ovine herpesvirus-2 (OvHV-2, sheep reservoir). MCF in rabbits is an excellent model as it closely resembles the disease in susceptible ungulates that include cattle, deer and bison. In this study, newly available and previously characterized monoclonal antibodies specific for rabbit leucocyte differentiation molecules were used to perform a detailed immunohistochemical examination of both AlHV-1 MCF and OvHV-2 MCF in rabbits. Differences in the MCF caused by the two viruses included: less tissue necrosis and more lymphoid cell accumulations in AlHV-1 MCF compared with OvHV-2 MCF, and in particular marked tissue necrosis in the mesenteric lymph node, appendix and liver of OvHV-2-infected animals when compared with either other tissues in OvHV-2 MCF or AlHV-1 MCF lesions in any tissue. In both AlHV-1 MCF and OvHV-2 MCF, lymphoid cell accumulations in lymphoid and non-lymphoid tissues consisted mainly of T-cells with a corresponding absence of B-cells. CD8(+) T-cells accounted for a proportion of these in the non-lymphoid tissues, but there was evidence for the accumulation of an unidentified T-cell subset/subsets as well. This study extends our understanding of the mechanisms of immuno-pathogenesis of MCF.

The development and characterization of an HEK293-derived cell line for use in an intratumoral cytokine delivery system.

As part of ongoing work to develop a method of cytokine delivery for use as an intratumoral depot, we noted that HEK293 cells, encapsulated in alginate, died within 24-48 h after in vivo, intratumoral implantation. We hypothesized that the highly hypoxic and acidic conditions found inside the tumor was the cause of the cells' premature demise. Therefore, we set out to develop a cell line, derived from HEK293, that would survive these hostile conditions. The HEK293 line was selected in 0.3-0.5% oxygen conditions over several weeks, followed by a further 6-week period of culture in alternating hypoxic and normoxic conditions. The most rapidly growing clones were selected and grown in normoxic conditions for several weeks to ensure their stability. The clones were then compared to the original line in terms of cell proliferation in normoxia and hypoxia, colony-forming efficiency, and morphological characteristics. The resulting line was able to proliferate in the harshest of conditions and continues to release its biological payload after alginate microencapsulation.

Strategies for self-management of HIV-related anxiety.

This study examines the frequency and effectiveness of commonly used strategies for self management of anxiety in an international sample of 502 participants from Norway (n=42, 8%), Taiwan (n=35, 7%), and the US (n=426, 85%). An activities checklist summarized into five categories of self-care behaviours including activities/thoughts, exercise, medications, complementary therapies, and substance use determined self-care behaviours. Ratings of frequency and effectiveness for each self-care activity were also included. Praying received the highest overall rating of effectiveness of any self-management strategies included in this study at 8.10 (scale 1 to 10), followed by meditation (7.37), exercising (7.32), using relaxation techniques (7.22), cooking (6.98), and walking (6.90). An analysis of effectiveness scores for each self-care strategy by country reflected a wide variation. The three most effective anxiety self-care strategies reported by participants from Norway included exercise (7.31), walking (6.96), and reading (6.44). Highest ratings of effectiveness by participants from Taiwan included talking with others with HIV (6.0), attending support groups (6.0), and exercising (6.0). US participants allocated highest ratings of effectiveness to complementary/alternative therapies, including praying (8.10), meditating (7.43), and using relaxation techniques (7.35). Regardless of the country, watching television and talking with family and friends were the two most frequently reported strategies. These strategies for self-management of HIV-related anxiety are important for clinicians to be aware of in the care of persons with HIV/AIDS.

The Development and Characterization of an HEK293-Derived Cell Line for Use in an Intratumoral Cytokine Delivery System.

As part of ongoing work to develop a method of cytokine delivery for use as an intratumoral depot, we noted that HEK293 cells, encapsulated in alginate, died within 24-48 h after in vivo, intratumoral implantation. We hypothesized that the highly hypoxic and acidic conditions found inside the tumor was the cause of the cells' premature demise. Therefore, we set out to develop a cell line, derived from HEK293, that would survive these hostile conditions. The HEK293 line was selected in 0.3-0.5% oxygen conditions over several weeks, followed by a further 6-week period of culture in alternating hypoxic and normoxic conditions. The most rapidly growing clones were selected and grown in normoxic conditions for several weeks to ensure their stability. The clones were then compared to the original line in terms of cell proliferation in normoxia and hypoxia, colony-forming efficiency, and morphological characteristics. The resulting line was able to proliferate in the harshest of conditions and continues to release its biological payload after alginate microencapsulation.

Early induction of humoral and cellular immune responses during experimental Mycobacterium avium subsp. paratuberculosis infection of calves.

Johne's disease (paratuberculosis) of cattle is widespread and causes significant economic losses for producers due to decreased production and poor health of affected animals. The chronic nature of the disease and the lack of a reproducible model of infection hinder research efforts. In the present study, instillation of Mycobacterium avium subsp. paratuberculosis into the tonsillar crypts of neonatal calves resulted in peripheral colonization as detected by antemortem culture of feces and postmortem (320 days postchallenge) culture of intestinal tissues. Antigen-specific blastogenic, gamma interferon (IFN-gamma), and nitric oxide responses by blood mononuclear cells from infected calves exceeded prechallenge responses beginning 194 days postchallenge. Upon in vitro stimulation with paratuberculosis antigens, CD4(+) cells from infected calves proliferated, produced IFN-gamma, and increased expression of CD26 and CD45RO (indicative of an activated memory phenotype). Utilizing a lipoarabinomannan-based enzyme-linked immunosorbent assay, specific serum immunoglobulin was detected as early as 134 days postchallenge and generally increased after this time point. Two antigens of approximately 50 and approximately 60 kDa were particularly immunodominant early in infection, as shown by immunoblot with serum collected within 2 weeks postchallenge. Findings indicate that the intratonsillar inoculation route will prove useful as an experimental model for paratuberculosis infection. Additionally, this study confirms that mycobacteria-specific antibody is detectable early in the course of experimental Johne's disease, even preceding the development of specific cell-mediated responses.

Use of the mannan receptor to selectively target vaccine antigens for processing and antigen presentation through the MHC class I and class II pathways.

Extensive studies have shown that synthetic and recombinant vaccines developed against hemoparasites have not been as effective as whole parasites or crude membrane fractions in eliciting protective immunity. A possible reason is that synthetic vaccines are not being presented in a form that induces the appropriate immune response. We have developed a bovine model system to evaluate the ability of adjuvant compounds to induce an immune response to peptide antigens dominated by a cytokine profile with a Type 1 (cell-mediated) or Type 2 (humoral) bias. In the initial testing of this system, we found that mRNA expression of certain cytokines (interleukin [IL]-1beta, IL-6, IL-12, IL-15, GM-CSF, iNOS, and tumor necrosis factor [TNF]-alpha) is enhanced when monocyte-derived macrophages are stimulated with peptide antigen conjugated with mannan under oxidizing conditions compared to peptide conjugated with reduced mannan. The data suggest this model will be useful in identifying adjuvant systems that selectively modulate the cytokine profile of antigen presenting cells at the time of antigen presentation and the consequent downstream maturation of naive T cells to effector cells with Type 1 or Type 2 cytokine bias.

Scavenger receptor cysteine-rich domains 9 and 11 of WC1 are receptors for the WC1 counter receptor.

Workshop cluster 1 (WC1) is a member of the scavenger receptor cysteine-rich (SRCR) superfamily that includes CD5, CD6, CD163, and M160. Bovine WC1 consists of 11 SRCR domains, a unique domain 1, and two homologous 5 SRCR domain cassettes, WC1 domains 2-6 and 7-11. The porcine orthologue of WC1 contains five SRCR domains with a different domain arrangement. Although the function of WC1 is unknown, WC1 is proposed to be an accessory or homing molecule. Thus, identification of cells that express the counter receptor for WC1 (WC1-CR) is critical to understanding the function of WC1. For this reason, we constructed WC1-human immunoglobulin G1 fusion proteins to identify the binding domain of WC1 and cells that express the WC1-CR. Immunohistochemical analysis revealed WC1 domains 9 and 11 bind cells with macrophage and dendritic cell morphology and cells in ellipsoids in the spleen. These results and the finding of conserved signaling motifs in the cytoplasmic tail suggest WC1 may be an accessory molecule.

Cloning of bovine CD69.

CD69 is rapidly inducible on various hematopoietic cells upon stimulation and is detectable as an early activation antigen. Although CD69 is well characterized in human and mouse, no information is available on bovine CD69. We report here that, bovine CD69 was cloned from a cDNA expression library prepared from activated peripheral blood lymphocytes. The full-length cDNA contained an 80bp 5' untranslated region, followed by a 600bp coding region and AU-rich motifs in a 3' untranslated region (GenBank accession number AF272828). Comparison of the bovine CD69 coding sequence reveals 69.4 and 78.2% nucleotide sequence identities with mouse and human CD69, respectively. The predicted amino acid sequence of bovine CD69 shares 56.3 and 62.3% sequence identity when compared with mouse and human CD69, respectively. Bovine CD69 has the highly conserved amino acid sequences found in the C-type lectin family, suggesting that the conserved residues may be important for conformation and binding to the, as yet unidentified ligand. In addition, the cytoplasmic tail of bovine CD69 has two casein kinase-2 (CK-2) phosphorylation sites. These data suggest that bovine CD69 plays an important role in the activation of lymphocytes.

Identity of activation molecule 3 on superantigen-stimulated bovine cells is CD26.

Most CD8(+) T cells in cultures of bovine mononuclear cells stimulated with staphylococcal enterotoxin C1 develop an unusual phenotype characterized by expression of activation molecule 3 (ACT3). This superantigen-dependent phenotype may be relevant to immunopathogenesis mediated by certain microbial toxins. The size and N-terminal sequence of immunoprecipitated ACT3 indicate that ACT3 is the bovine orthologue of CD26.