Browsing by Subject "Alcohols"

Now showing 1 - 4 of 4
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    Open Access
    The enclathration of alcohols by cholic acid
    (1989) Jones, Elizabeth Louise; Nassimbeni, Luigi R
    A series of crystalline Cholic acid inclusion compounds were studied with a view to understanding the role of guest molecules in inducing and stabilizing a particular Cholic acid (host) lattice structure. Alcohols in the series CH₃(CH₂nOH (n= 0 to 3 and 2-propanol) were employed as guest molecules and enclathrated in the host lattice of Cholic acid during crystallization. Single crystal structure analyses were performed by X-ray diffraction. Two types of molecular packing were identified. Cholic acid inclusion compounds with methanol, ethanol and 1-propanol are characterized by a 3-D host and guest molecule network stabilized by hydrogen bonds with symmetry of P2₁2₁2₁ space group. The guest molecules 2- propanol and 1-butanol, by nature of their size, induce a molecular packing with a larger guest cavity than that in the P2₁2₁2₁ space structures. Symmetrically defined by the P6₅22 space group, the crystal lattice is characterized by a helix of Cholic acid molecules generated by the six-fold screw axis through the origin and parallel to the c axis. The lattice is stabilized by an intricate hydrogen bonding scheme. The conformation of Cholic acid (particularly that of the flexible side-chain) in the two types of molecular packing was studied. The size and shape of the guest cavities created by the host lattices were examined. Thermal analyses (Thermogravimetric analysis and Differential Scanning Calorimetry) were performed on these compounds to examine the guest content and the strength of host-guest interactions. ₁₂₃₅
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    Open Access
    Prevention of diseases after menopause
    (2014) Lobo, R A; Davis, S R; de Villiers, T J; Gompel, A; Henderson, V W; Hodis, H N; Lumsden, M A; Mack, W J; Shapiro, S; Baber, R J
    AbstractWomen may expect to spend more than a third of their lives after menopause. Beginning in the sixth decade, many chronic diseases will begin to emerge, which will affect both the quality and quantity of a woman's life. Thus, the onset of menopause heralds an opportunity for prevention strategies to improve the quality of life and enhance longevity. Obesity, metabolic syndrome and diabetes, cardiovascular disease, osteoporosis and osteoarthritis, cognitive decline, dementia and depression, and cancer are the major diseases of concern. Prevention strategies at menopause have to begin with screening and careful assessment for risk factors, which should also include molecular and genetic diagnostics, as these become available. Identification of certain risks will then allow directed therapy. Evidence-based prevention for the diseases noted above include lifestyle management, cessation of smoking, curtailing excessive alcohol consumption, a healthy diet and moderate exercise, as well as mentally stimula...
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    Toward a global view of alcohol, tobacco, cannabis, and cocaine use: findings from the WHO World Mental Health Surveys
    (Public Library of Science, 2008) Degenhardt, Louisa; Chiu, Wai-Tat; Sampson, Nancy; Kessler, Ronald C; Anthony, James C; Angermeyer, Matthias; Bruffaerts, Ronny; Girolamo, Giovanni de; Gureje, Oye; Huang, Yueqin
    Louisa Degenhardt and colleagues report an international survey of 17 countries that finds clear differences in drug use across different regions of the world.
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    Treatment Contact Coverage for Probable Depressive and Probable Alcohol Use Disorders in Four Low- and Middle-Income Country Districts: The PRIME Cross-Sectional Community Surveys
    (Public Library of Science, 2016) Rathod, Sujit D; De Silva, Mary J; Ssebunnya, Joshua; Breuer, Erica; Murhar, Vaibhav; Luitel, Nagendra P; Medhin, Girmay; Kigozi, Fred; Shidhaye, Rahul; Fekadu, Abebaw; Jordans, Mark; Patel, Vikram; Tomlinson, Mark; Lund, Crick
    Context A robust evidence base is now emerging that indicates that treatment for depression and alcohol use disorders (AUD) delivered in low and middle-income countries (LMIC) can be effective. However, the coverage of services for these conditions in most LMIC settings remains unknown. Objective To describe the methods of a repeat cross-sectional survey to determine changes in treatment contact coverage for probable depression and for probable AUD in four LMIC districts, and to present the baseline findings regarding treatment contact coverage. METHODS: Population-based cross-sectional surveys with structured questionnaires, which included validated screening tools to identify probable cases. We defined contact coverage as being the proportion of cases who sought professional help in the past 12 months. Setting Sodo District, Ethiopia; Sehore District, India; Chitwan District, Nepal; and Kamuli District, Uganda Participants 8036 adults residing in these districts between May 2013 and May 2014 Main Outcome Measures Treatment contact coverage was defined as having sought care from a specialist, generalist, or other health care provider for symptoms related to depression or AUD. RESULTS: The proportion of adults who screened positive for depression over the past 12 months ranged from 11.2% in Nepal to 29.7% in India and treatment contact coverage over the past 12 months ranged between 8.1% in Nepal to 23.5% in India. In Ethiopia, lifetime contact coverage for probable depression was 23.7%. The proportion of adults who screened positive for AUD over the past 12 months ranged from 1.7% in Uganda to 13.9% in Ethiopia and treatment contact coverage over the past 12 months ranged from 2.8% in India to 5.1% in Nepal. In Ethiopia, lifetime contact coverage for probable AUD was 13.1%. CONCLUSIONS: Our findings are consistent with and contribute to the limited evidence base which indicates low treatment contact coverage for depression and for AUD in LMIC. The planned follow up surveys will be used to estimate the change in contact coverage coinciding with the implementation of district-level mental health care plans.