Effects of HSP70 chaperones Ssa1 and Ssa2 on Ste5 scaffold and the mating mitogen-activated protein kinase (MAPK) pathway in Saccharomyces cerevisiae.

Ste5 is a prototype of scaffold proteins that regulate activation of mitogen-activated protein kinase (MAPK) cascades in all eukaryotes. Ste5 associates with many proteins including Gβγ (Ste4), Ste11 MAPKKK, Ste7 MAPKK, Fus3 and Kss1 MAPKs, Bem1, Cdc24. Here we show that Ste5 also associates with heat shock protein 70 chaperone (Hsp70) Ssa1 and that Ssa1 and its ortholog Ssa2 are together important for Ste5 function and efficient mating responses.

Supporting the utilization of community-based primary health care implementation research in Ghana.

Ever since the 1990s, implementation research in Ghana has guided the development of policies and practices that are essential to establishing community-based primary health care. In response to evidence emerging from this research, the Community-based Health Planning and Services (CHPS) policy was promulgated in 1999 to scale-up results. However, during the first decade of CHPS operation, national monitoring showed that its pace of coverage expansion was unacceptably slow.

Accountability strategies for sexual and reproductive health and reproductive rights in humanitarian settings: a scoping review.

Background: Many of the 35 million women and girls aged 15-49 requiring humanitarian assistance have inadequate access to the sexual and reproductive health (SRH) services to which they are entitled. Ensuring accountability is critical to realizing their SRH and reproductive rights (RR).

Objectives: This scoping review examines the extent and nature of existing evidence on accountability strategies for SRH in humanitarian settings in different geographical scopes/contexts, and contextualizes these findings in the larger thematic literature.

Evaluating health service coverage in Ghana's Volta Region using a modified Tanahashi model.

: The United Nations 2030 Sustainable Development Goals have reaffirmed the international community's commitment to maternal, newborn, and child health, with further investments in achieving quality essential service coverage and financial protection for all.: Using a modified version of the 1978 Tanahashi model as an analytical framework for measuring and assessing health service coverage, this paper aims to examine the system of care at the community level in Ghana's Volta Region to highlight the continued reforms needed to achieve Universal Health Coverage.: The Tanahashi model evaluates health system coverage through five key measures that reflect different stages along the service provision continuum: availability of services; accessibility; initial contact with the health system; continued utilization; and quality coverage.

The impact of adding community-based distribution of oral contraceptives and condoms to a cluster randomized primary health care intervention in rural Tanzania.

Background: Efforts to expand access to family planning in rural Africa often focus on the deployment of community health agents (CHAs).

Methods: This paper reports on results of the impact of a randomized cluster trial of CHA deployment on contraceptive uptake among 3078 baseline and 2551 endline women of reproductive age residing in 50 intervention and 51 comparison villages in Tanzania. Qualitative data were collected to broaden understanding of method preference, reasons for choice, and factors that explain non-use.

Does the provision of community health services offset the effects of poverty and low maternal educational attainment on childhood mortality? An analysis of the equity effect of the Navrongo experiment in Northern Ghana.

The Government of Ghana has instituted a National Poverty Reduction Program with an initiative known as the Community-based Health Planning and Services (CHPS) as its core health development strategy. CHPS was derived from a plausibility trial of the Navrongo Health Research Centre testing four contrasting primary health care strategies: i) Training unpaid volunteers to promote health in communities, ii) placing nurses in communities with training and supplies for treating childhood illnesses, iii) combining the nurse and volunteer approaches, and iv) sustaining a comparison condition whereby clinic services were provided without community resident workers. This paper presents an age-conditional proportional hazard analysis of the long term impact of community health worker exposure among 94,599 children who were ever under age five over the January 1, 1995 to December 2010 period, adjusting for age conditional effects of shifts in exposure type as CHPS was scaled up in Navrongo project area over the 1995-2000 period.

What do you do with success? The science of scaling up a health systems strengthening intervention in Ghana.

Background: The completion of an implementation research project typically signals the end of research. In contrast, the Ghana Health Service has embraced a continuous process of evidence-based programming, wherein each research episode is followed by action and a new program of research that monitors and guides the utilization of lessons learned. This paper reviews the objectives and design of the most recent phase in this process, known as a National Program for Strengthening the Implementation of the Community-based Health Planning and Services (CHPS) Initiative in Ghana (CHPS+).

Benefits and Limitations of a Community-Engaged Emergency Referral System in a Remote, Impoverished Setting of Northern Ghana.

Although Ghana has a well-organized primary health care system, it lacks policies and guidelines for developing or providing emergency referral services. In 2012, an emergency referral pilot-the Sustainable Emergency Referral Care (SERC) initiative-was launched by the Ghana Health Service in collaboration with community stakeholders and health workers in one subdistrict of the Upper East Region where approximately 20,000 people reside. The pilot program was scaled up in 2013 to a 3-district (12-subdistrict) plausibility trial that served a population of approximately 184,000 over 2 years from 2013 to 2015.

The Astronomy of Africa's Health Systems Literature During the MDG Era: Where Are the Systems Clusters?

Growing international concern about the need for improved health systems in Africa has catalyzed an expansion of the health systems literature. This review applies a bibliometric procedure to analyze the acceleration of scientific writing on this theme. We focus on research published during the Millennium Development Goal (MDG) era between 1990 and 2014, reporting findings from a systematic review of a database comprised of 17,655 articles about health systems themes from sub-Saharan African countries or subregions.

A comparative qualitative study of misconceptions associated with contraceptive use in southern and northern ghana.

Evidence from Ghana consistently shows that unmet need for contraception is pervasive with many possible causes, yet how these may differ by cultural zone remains poorly understood. This qualitative study was designed to elicit information on the nature and form of misconceptions associated with contraceptive use among northern and southern Ghanaians. Twenty-two focus group discussions (FGDs) with married community members were carried out.

Occupational injury among migrant workers in China: a systematic review.

Objectives: This review considers the state of occupational injury surveillance and prevention among migrant workers in China and suggests areas of focus for future research on the topic.

Methods: Bibliographic databases were searched for qualitative and quantitative studies on surveillance of and interventions to prevent occupational injury among migrant workers in mainland China. Additional abstracts were identified from the citations of relevant articles from the database search.

Ste11p MEKK signals through HOG, mating, calcineurin and PKC pathways to regulate the FKS2 gene.

Background: The S. cerevisiae MAPKKK Ste11p, a homologue of mammalian MEKK1, regulates three MAPK cascades for mating, invasive growth and osmotic stress and provides functions that are additive with the cell wall integrity pathway. Cell wall integrity requires the FKS2 gene that encodes a stress-induced alternative subunit of beta-1, 3 glucan synthase that is the target of echinocandin 1,3- beta glucan synthase inhibitors.

Counteractive control of polarized morphogenesis during mating by mitogen-activated protein kinase Fus3 and G1 cyclin-dependent kinase.

Cell polarization in response to external cues is critical to many eukaryotic cells. During pheromone-induced mating in Saccharomyces cerevisiae, the mitogen-activated protein kinase (MAPK) Fus3 induces polarization of the actin cytoskeleton toward a landmark generated by the pheromone receptor. Here, we analyze the role of Fus3 activation and cell cycle arrest in mating morphogenesis.

Apoptosis in gingival overgrowth tissues.

Variations in the balance between cell proliferation and apoptosis could contribute to the etiology of gingival overgrowth. The aim of this study was to test the hypothesis that, in fibrotic gingival lesions, fibroblast proliferation is stimulated and apoptosis is decreased. Apoptotic index, caspase 3 expression, the proliferative index, FOXO1 expression, and histological inflammation were measured in situ.

Intracellular protein interaction mapping with FRET hybrids.

A quantitative methodology was developed to identify protein interactions in a broad range of cell types by using FRET between fluorescent proteins. Genetic fusions of a target receptor to a FRET acceptor and a large library of candidate peptide ligands to a FRET donor enabled high-throughput optical screening for optimal interaction partners in the cytoplasm of Escherichia coli. Flow cytometric screening identified a panel of peptide ligands capable of recognizing the target receptors in the intracellular environment.

Epithelial and connective tissue cell CTGF/CCN2 expression in gingival fibrosis.

Gingival overgrowth is a side effect of certain medications and occurs in non-drug-induced forms either as inherited (human gingival fibromatosis) or idiopathic gingival overgrowth. The most fibrotic drug-induced lesions develop in response to therapy with phenytoin; the least fibrotic lesions are caused by cyclosporin A; and intermediate fibrosis occurs in nifedipine-induced gingival overgrowth. Connective tissue growth factor (CTGF/CCN2) expression is positively related to the degree of fibrosis in these tissues.

Optimized cassettes for fluorescent protein tagging in Saccharomyces cerevisiae.

Green fluorescent protein (GFP) has become an increasingly popular protein tag for determining protein localization and abundance. With the availability of GFP variants with altered fluorescence spectra, as well as GFP homologues from other organisms, multi-colour fluorescence with protein tags is now possible, as is measuring protein interactions using fluorescence resonance energy transfer (FRET). We have created a set of yeast tagging vectors containing codon-optimized variants of GFP, CFP (cyan), YFP (yellow), and Sapphire (a UV-excitable GFP).

Connective tissue growth factor in drug-induced gingival overgrowth.

Background: Drug-induced gingival overgrowth is a known side effect of certain chemotherapeutic agents used for the treatment of systemic disorders. The pathogenesis and mechanisms responsible for this condition are not fully understood. This study assesses for the presence and localization of connective tissue growth factor (CTGF) in drug-induced gingival overgrowth tissues.

Future caries susceptibility in children with early childhood caries following treatment under general anesthesia.

Purpose: The purpose of this study was to assess the susceptibility of children to the future development of caries following comprehensive treatment for early childhood caries (ECC) under general anesthesia.

Methods: The patients selected for this retrospective study were identified by analyzing dental records of children receiving treatment at the Franciscan Children's Hospital & Rehabilitation Center, Boston, MA (FCH & RC). In total, 4,143 records were reviewed.

Regulation of lysyl oxidase, collagen, and connective tissue growth factor by TGF-beta1 and detection in human gingiva.

Gingival overgrowth is characterized by excess extracellular matrix accumulation and elevated levels of cytokines, including transforming growth factor-beta1 (TGF-beta1). The functional relationships between altered cytokine levels and extracellular matrix accumulation have not been extensively investigated in gingival cells and tissues. Lysyl oxidase catalyzes the final known enzymatic step required for cross-linking collagen and elastin in the synthesis of a functional extracellular matrix.

Selective inhibition of sheep kidney 11 beta-hydroxysteroid dehydrogenase isoform 2 activity by 5 alpha-reduced (but not 5 beta) derivatives of adrenocorticosteroids.

We have previously reported that 5 alpha and 5 beta pathways of steroid metabolism are controlled in vivo by dietary Na+ and glycyrrhetinic acid, see Gorsline et al. 1988; Latif et al. 1990.

Kidney 11 beta-HSD2 is inhibited by glycyrrhetinic acid-like factors in human urine.

We have previously shown that human urine contains substances that, like glycyrrhetinic acid, inhibit 11 beta-HSD1. We have named these substances "glycyrrhetinic acid-like factors" or GALFs. We now have found that human urine contains measurable quantities of both 11 beta(HSD1)- and 11 beta(HSD2)-GALF inhibitory substances.

Inhibitors of 11 beta-hydroxysteroid dehydrogenase and 5 beta-steroid reductase in urine from patients with congestive heart failure.

Recently, the current authors reported the presence in normotensive male and female urines of reproducibly measurable levels of naturally occurring substances in partially purified extracts of urine with inhibitory activity like glycyrrhetic acid (GA) towards both 11 beta-hydroxysteroid dehydrogenase (11 beta-OHSD) and steroid 5 beta-reductase (5 beta-SR) in vitro. Since these substances mimic two known inhibitory activities of GA, they have been named 'Glycyrrhetic Acid-Like Factors', abbreviated as 'GALFs' or, more specifically 11 beta-GALF for substance(s) active against 11 beta-OHSD, and 5 beta-GALF for those inhibitory to 5 beta-SR. Administration of glycyrrhetic acid in man leads to cortisol-dependent mineralocorticoid hypertension, owing to impaired inactivation of cortisol by 11 beta-OHSD, and may be associated with increased sensitivity to mineralocorticoids owing to impaired 5 beta-SR.