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Paschou SA, Athanasiadou KI, Papanas N. Menopausal Hormone Therapy in Women with Type 2 Diabetes Mellitus: An Updated Review. Diabetes Ther 2024; 15:741-748. [PMID: 38363540 PMCID: PMC10951155 DOI: 10.1007/s13300-024-01546-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 01/31/2024] [Indexed: 02/17/2024] Open
Abstract
Menopause is accompanied by several metabolic adaptations, which are related to insulin resistance, increased total body fat mass, and central abdominal fat accumulation, predisposing women to type 2 diabetes mellitus (T2DM) development. Metabolic syndrome has a high prevalence in postmenopausal women, indicating the loss of estrogen protection on metabolic and cardiovascular health. Moreover, earlier age at menopause has been related to increased risk of T2DM. Menopausal hormone therapy (MHT) has favorable results in glucose metabolism. Indeed, it reduces the risk of T2DM in women without this condition and improves glycemic control in women with T2DM. Before MHT initiation in women with clinical indications, it is imperative to assess their cardiovascular disease (CVD) risk, using official electronic algorithms for score calculation. The latter will determine regimen, dose, and administration route of MHT. Oral estrogens are preferable in women with low CVD risk, while transdermal administration is indicated in those with moderate and high CVD risk, as the risk of stroke and venous thromboembolism (VTE) is increased with oral administration. Oral 17β-estradiol is usually preferred in women with T2DM, as this route has more beneficial effects on glucose metabolism. Oral estrogens are also suggested in perimenopausal or recently postmenopausal women with low CVD risk. Although oral estrogens have favorable effects when indicated, the risk of VTE or stroke should always be considered. Micronized progesterone, dydrogesterone, and transdermal norethisterone are the progestogens used in postmenopausal women with T2DM and intact uterus. MHT should not be initiated in women > 60 years or > 10 years in menopause, as there is an increased thromboembolic risk in women with established atherosclerosis and no additional cardiovascular benefit in women without atherosclerosis. In conclusion, MHT administration in postmenopausal women with T2DM can be safe and effective as long as the therapeutic regimen has been properly selected according to their cardiovascular, metabolic, and fracture risk.
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Affiliation(s)
- Stavroula A Paschou
- Endocrine Unit and Diabetes Centre, Department of Clinical Therapeutics, School of Medicine, Alexandra Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Kleoniki I Athanasiadou
- Endocrine Unit and Diabetes Centre, Department of Clinical Therapeutics, School of Medicine, Alexandra Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Papanas
- Diabetes Centre, Second Department of Internal Medicine, Medical School, University Hospital of Alexandroupolis, Democritus University of Thrace, G. Kondyli 22, 68132, Alexandroupolis, Greece.
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Song M, Jayasekara H, Pelucchi C, Rabkin CS, Johnson KC, Hu J, Palli D, Ferraroni M, Liao LM, Bonzi R, Zaridze D, Maximovitch D, Aragonés N, Martin V, Castaño-Vinyals G, Guevara M, Tsugane S, Hamada GS, Hidaka A, Negri E, Ward MH, Sinha R, Lagiou A, Lagiou P, Boffetta P, Curado MP, Lunet N, Vioque J, Zhang ZF, La Vecchia C, Camargo MC. Reproductive factors, hormonal interventions, and gastric cancer risk in the Stomach cancer Pooling (StoP) Project. Cancer Causes Control 2024; 35:727-737. [PMID: 38123742 DOI: 10.1007/s10552-023-01829-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/10/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Gastric cancer incidence is higher in men, and a protective hormone-related effect in women is postulated. We aimed to investigate and quantify the relationship in the Stomach cancer Pooling (StoP) Project consortium. METHODS A total of 2,084 cases and 7,102 controls from 11 studies in seven countries were included. Summary odds ratios (ORs) and 95% confidence intervals (CIs) assessing associations of key reproductive factors and menopausal hormone therapy (MHT) with gastric cancer were estimated by pooling study-specific ORs using random-effects meta-analysis. RESULTS A duration of fertility of ≥ 40 years (vs. < 20), was associated with a 25% lower risk of gastric cancer (OR = 0.75; 95% CI: 0.58-0.96). Compared with never use, ever, 5-9 years and ≥ 10 years use of MHT in postmenopausal women, showed ORs of 0.73 (95% CI: 0.58-0.92), 0.53 (95% CI: 0.34-0.84) and 0.71 (95% CI: 0.50-1.00), respectively. The associations were generally similar for anatomical and histologic subtypes. CONCLUSION Our results support the hypothesis that reproductive factors and MHT use may lower the risk of gastric cancer in women, regardless of anatomical or histologic subtypes. Given the variation in hormones over the lifespan, studies should address their effects in premenopausal and postmenopausal women. Furthermore, mechanistic studies may inform potential biological processes.
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Affiliation(s)
- Minkyo Song
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Harindra Jayasekara
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC, Australia
- School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Claudio Pelucchi
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Charles S Rabkin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Kenneth C Johnson
- School of Epidemiology and Public Health, Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Jinfu Hu
- Harbin Medical University, Harbin, China
| | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network, ISPRO, Florence, Italy
| | - Monica Ferraroni
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Linda M Liao
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Rossella Bonzi
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - David Zaridze
- Department of Clinical Epidemiology, N.N. Blokhin National Medical Research Center for Oncology, Moscow, Russia
| | - Dmitry Maximovitch
- Department of Clinical Epidemiology, N.N. Blokhin National Medical Research Center for Oncology, Moscow, Russia
| | - Nuria Aragonés
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Cancer Registration and Surveillance Unit, Public Health Division, Department of Health of Madrid, Madrid, Spain
| | - Vicente Martin
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Biomedicina (IBIOMED), Universidad de León, León, Spain
| | - Gemma Castaño-Vinyals
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Barcelona Institute for Global Health-ISGlobal, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Marcela Guevara
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Salud Pública y Laboral de Navarra, 31003, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), 31008, Pamplona, Spain
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | | | - Akihisa Hidaka
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Eva Negri
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Mary H Ward
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Rashmi Sinha
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Areti Lagiou
- Department of Public and Community Health, School of Public Health, University of West Attica, Athens, Greece
| | - Pagona Lagiou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Paolo Boffetta
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
| | - Maria Paula Curado
- Centro Internacional de Pesquisa, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Nuno Lunet
- EPIUnit - Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
- Laboratório Para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Jesus Vioque
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante, Universidad Miguel Hernandez (ISABIAL-UMH), Alicante, Spain
| | - Zuo-Feng Zhang
- Department of Epidemiology, UCLA Fielding School of Public Health and Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Carlo La Vecchia
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - M Constanza Camargo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
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Elbeltagi S, Saeedi AM, Eldin ZE, Alfassam HE, Alharbi HM, Madkhali N, Shakor ABA, El-Aal MA. Biosynthesis, characterization, magnetic hyperthermia, and in vitro toxicity evaluation of quercetin-loaded magnetoliposome lipid bilayer hybrid system on MCF-7 breast cancer. Biochim Biophys Acta Gen Subj 2024; 1868:130543. [PMID: 38103758 DOI: 10.1016/j.bbagen.2023.130543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/18/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Novel biocompatible and effective hyperthermia (HT) treatment materials for breast cancer therapeutic have recently attracting researchers, because of their effective ablation of cancer cells and negligible damage to healthy cells. Magnetoliposome (MLs) have numerous possibilities for utilize in cancer treatment, including smart drug delivery (SDD) mediated through alternating magnetic fields (AMF). In this work, magnesium ferrite (MgFe2O4) encapsulated with liposomes lipid bilayer (MLs), Quercetin (Q)-loaded MgFe2O4@Liposomes (Q-MLs) nano-hybrid system were successfully synthesized for magnetic hyperthermia (MHT) and SDD applications. The hybrid system was well-investigated by different techniques using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), Energy dispersive X-ray (EDX), Vibrating sample magnetometer (VSM), Transmission electron microscope (TEM), and Zeta Potential (ZP). The characterization results confirmed the improving quercetin-loading on the MLs surface. TEM analysis indicated the synthesized MgFe2O4, MLs, and Q-MLs were spherical with an average size of 23.7, 35.5, and 329.5 nm, respectively. The VSM results revealed that the MgFe2O4 exhibit excellent and effective saturation magnetization (MS) (40.5 emu/g). Quercetin drug loading and entrapment efficiency were found to be equal to 2.1 ± 0.1% and 42.3 ± 2.2%, respectively. The in-vitro Q release from Q-loaded MLs was found 40.2% at pH 5.1 and 69.87% at pH 7.4, verifying the Q-loading pH sensitivity. The MLs and Q-MLs hybrid system as MHT agents exhibit specific absorption rate (SAR) values of 197 and 205 W/g, correspondingly. Furthermore, the Q-MLs cytotoxicity was studied on the MCF-7 breast cancer cell line, and the obtained data demonstrated that the Q-MLs have a high cytotoxicity effect compared to MLs and free Q.
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Affiliation(s)
- Shehab Elbeltagi
- Department of Physics-Biophysics, Faculty of Science, New Valley University, New Valley 72511, Egypt.
| | - Ahmad M Saeedi
- Department of Physics, Faculty of Applied Science, Umm AL-Qura University, Makkah 24382, Saudi Arabia
| | - Zienab E Eldin
- Center for Material Science, Zewail City of Science and Technology, 6th of October, 12578 Giza, Egypt; Faculty of Postgraduate Studies for Advanced Sciences, Material Science and nanotechnology epartment, (PSAS), Beni-Suef University, Beni-Suef 62511, Egypt
| | - Haifa E Alfassam
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Hanan M Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Nawal Madkhali
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMISU), Riyadh 11623, Saudi Arabia
| | | | - Mohamed Abd El-Aal
- Chemistry Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt
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Zhu Y, Yang X, Wang Y, Zhu X. Assessment of knowledge, understanding and awareness of Chinese women clinical staff towards menopause hormone therapy: a survey study. J OBSTET GYNAECOL 2023; 43:2171779. [PMID: 36772932 DOI: 10.1080/01443615.2023.2171779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Menopausal Hormone Therapy (MHT) is recommended for climacteric peri- and postmenopausal symptoms. The rate of use of MHT in China is much lower than the western regions. Therefore, a survey was conducted for the understanding and utilization of MHT among clinical staff in various hospitals of China. A total of 3216 eligible questionnaires were included for the evaluation. According to 19.2% participant opinion, MHT could relieve menopausal symptoms, whereas the majority had no knowledge of the benefits and risks of MHT. The most common concern about MHT was the risk of cancer and about 430 (13.4%) and 176 (5.5%) participants were apprehensive that MHT could increase the risk of breast and endometrial cancer, respectively. This survey demonstrated that the knowledge of clinical staff was not comprehensive and they should be educated more about the use of MHT so that this knowledge can be imbibed into the general population.Impact StatementWhat is already known on this subject? Menopausal Hormone Therapy (MHT) is recommended for climacteric peri- and postmenopausal symptoms. The rate of use of MHT in China is much lower than the western regions.What do the results of this study add? Only 19.2% of the respondents were of the opinion that MHT could relieve menopausal symptoms. The most common concern about MHT was the risk of cancer and about 430 (13.4%) and 176 (5.5%) participants were apprehensive that MHT could increase the risk of breast and endometrial cancer.What are the implications of these findings for clinical practice and/or further research? The survey demonstrated that Chinese medical professionals had some understanding about MHT, but their knowledge was not comprehensive. Thus, it is necessary to educate these medical professionals which in turn will help them to imbibe this knowledge among the general population.
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Affiliation(s)
- Ye Zhu
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Xicheng District, Beijing, China
| | - Xin Yang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Xicheng District, Beijing, China
| | - Yanjie Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, China
| | - Xiaodong Zhu
- Department of Immunopharmacology, Mudanjiang Medical University, Mudanjiang, China
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Tahernejad S, Razeghi M, Abdoli-Eramaki M, Parsaei H, Seif M, Choobineh A. Recommended maximum holding time of common static sitting postures of office workers. Int J Occup Saf Ergon 2022; 29:847-854. [PMID: 35659501 DOI: 10.1080/10803548.2022.2085418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE A posture maintained for a long period can be harmful to the health of office workers. This study aimed to estimate the recommended ergonomic duration for maintaining different sitting postures. MATERIALS AND METHODS Forty healthy male and female students participated in this experiment designed to measure perceived discomfort caused by maintaining common static sitting postures of office workers in a simple ergonomic setup for four minutes. The Borg CR10 scale was given to the participants to assess the discomfort in different body parts, before and after each experiment. Based on the mean group discomfort level of 2, the recommended holding time of each posture was estimated. RESULTS The recommended holding time and its discomfort score for each studied posture were tabulated. The shortest holding time of a posture was obtained for the moderate neck flexion (1.61 minutes), and the longest holding time was obtained for legs posture with 90-degree knee flexion (6.45 minutes). CONCLUSIONS The recommended holding time in this study may help to assess the risk of Musculoskeletal Disorders in office workers and train the individuals involved in office tasks in proper sitting behavior.
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Affiliation(s)
- Somayeh Tahernejad
- PhD. Department of Occupational Health Engineering and Safety at Work, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohsen Razeghi
- PhD. Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Iran
| | | | - Hossein Parsaei
- PhD. Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mozhgan Seif
- PhD. Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Choobineh
- PhD. Research Center for Health Sciences, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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Digesu GA, Riemma G, Torella M, La Verde M, Schiattarella A, Munno GM, Fasulo DD, Celardo A, Vagnetti P, Annona S, Schettino MT, Guida M, De Franciscis P. Functional Brain Asymmetry and Menopausal Treatments: Is There a Link? Medicina (Kaunas) 2022; 58:medicina58050616. [PMID: 35630033 PMCID: PMC9146288 DOI: 10.3390/medicina58050616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/16/2022] [Accepted: 04/25/2022] [Indexed: 11/16/2022]
Abstract
Background and Objectives: The human brain presents a functional asymmetry for every cognitive function, and it is possible that sexual hormones could have an impact on it. Visual−spatial attention, one of the most lateralized functions and one that is mainly dependent on the right hemisphere, represents a sentinel for functional cerebral asymmetry (FCA). The aim of this study was to evaluate whether menopausal hormone therapy (MHT) or phytoestrogens could modulate FCA in postmenopausal women. Materials and Methods: We enrolled postmenopausal women who were taking MHT or soy isoflavones or receiving no therapy and asked them to perform the line bisection test at study enrollment and after 18 and 36 months. Results: Ninety women completed the follow-up. At zero time, women who had not been subjected to therapy showed a leftward deviation (F = −3.0), whereas, after 36 months, the test results showed a rightward deviation (F = 4.5; p < 0.01). Women taking MHT showed a leftward deviation at the start (F = −3.0) and a persistent leftward deviation after 36 months (F = −4.0; p = 0.08). Conversely, women taking soy isoflavones started with a leftward deviation (F = −3.0) that became rightward (F = 3.0), with a significant difference shown after 36 months (p < 0.01). Conclusions: Our data suggest that hormonal modulation improves the interplay between the two hemispheres and reduces FCA. We propose, therefore, that the functions of the right hemisphere are mainly affected by aging and that this could be one of the reasons why the right hemisphere is more susceptible to the effects of MHT.
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Affiliation(s)
| | - Gaetano Riemma
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Marco Torella
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Marco La Verde
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Antonio Schiattarella
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Gaetano Maria Munno
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Diego Domenico Fasulo
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Angela Celardo
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Primo Vagnetti
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Salvatore Annona
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Maria Teresa Schettino
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
| | - Maurizio Guida
- School of Medicine, Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples Federico II, 80131 Naples, Italy;
| | - Pasquale De Franciscis
- Obstetrics and Gynecology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (G.R.); (M.T.); (M.L.V.); (A.S.); (G.M.M.); (D.D.F.); (A.C.); (P.V.); (S.A.); (M.T.S.); (P.D.F.)
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Abstract
The efficacy of menopausal hormone therapy for bothersome menopausal symptoms is well established. However, there are a range of benign and malignant gynaecological conditions that pose a challenge in managing menopausal symptoms. Their hormone-dependent nature either raises concerns about symptom recurrence or malignant disease progression making decisions about menopausal hormone therapy complex for both clinicians and patients. It appears there is a small potential for symptom recurrence with menopausal hormone therapy use in menopausal women with a history of severe endometriosis. Malignant transformation of previous endometriotic lesions is likely to be rare but is not adequately understood. In this setting, combined hormone therapy is preferred, including in woman post-hysterectomy. Uterine fibroids are not a contraindication to menopausal hormone therapy use but women with large fibroids at menopause should have regular follow-up of their fibroids. Generally, menopausal hormone therapy is considered appropriate for women with cervical cancer and most ovarian cancers except for low grade serous tumours. Endometrial cancer requires an individualised discussion. The overall quality of data in this area is poor but suggests women with a low risk of recurrence may consider hormonal therapy, balancing symptom impact with prognosis.
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Abstract
Postmenopausal osteoporosis is a frequent clinical condition which affects nearly 1 in 3 women. Estrogen deficiency leads to rapid bone loss which is maximal within the first 2-3 years after the menopause transition and can be prevented by menopause hormone therapy (MHT). Not only, MHT prevents bone loss and the degradation of the bone microarchitecture but it significantly reduces the risk of fracture at all bone sites by 20-40%. It is the only anti-osteoporotic therapy that has a proven efficacy regardless of basal level of risk, even in low-risk women for fracture. Following the publication of the WHI results, use of MHT has considerably declined due to safety concerns which raise the question as to whether it might still be used in the prevention of osteoporosis. Over the last years, subsequent re-analyses of the WHI and further trials have challenged the initial conclusions of the WHI. It is now clearer that the individual benefit-risk balance of MHT is dependent on the individual risk profile in each woman as well as whether estrogen is opposed or unopposed, the type of estrogens and progestogens or doses and routes of administration. It must be also reminded that to date osteoporosis is a chronic disease that cannot be cured. The choice of the 1st treatment option should thus always be made in the context of a more comprehensive long-term strategy. This is particular true in early postmenopausal women found to be at low/moderate risk of fragility fracture over the first 10 years after menopause but who may have a much greater lifetime risk. In the absence of contraindication, use of MHT should be considered as a 1st option for the maintenance of bone health in those women where specific bone active medications are not warranted. Subsequent reassessment of the individual benefit-risk balance of MHT is thereafter recommended, with the possibility of switching to another osteoporosis treatment if the balance is not considered as favourable as at the beginning of the menopause for women still at high risk of fracture.
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Affiliation(s)
- Anna Gosset
- Centre de Ménopause et Maladies Osseuses Métaboliques, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, 31059, Toulouse, France
| | - Jean-Michel Pouillès
- Centre de Ménopause et Maladies Osseuses Métaboliques, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, 31059, Toulouse, France
| | - Florence Trémollieres
- Centre de Ménopause et Maladies Osseuses Métaboliques, Hôpital Paule de Viguier, 330 Avenue de Grande-Bretagne, TSA 70034, 31059, Toulouse, France; INSERM U1048-I2MC-Equipe 9, Université Toulouse III Paul Sabatier, 1 Avenue du Professeur Jean Poulhès, BP 84225, 31432, Toulouse Cedex 4, France.
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Shahin M, Ahmadi A. Molecular characterization of NDM-1-producing Pseudomonas aeruginosa isolates from hospitalized patients in Iran. Ann Clin Microbiol Antimicrob 2021; 20:76. [PMID: 34732199 PMCID: PMC8567709 DOI: 10.1186/s12941-021-00482-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 10/19/2021] [Indexed: 01/22/2023] Open
Abstract
Background The emergence of carbapenem-resistant Pseudomonas aeruginosa is one of the most important challenges in a healthcare setting. The aim of this study is double-locus sequence typing (DLST) typing of blaNDM-1 positive P. aeruginosa isolates. Methods Twenty-nine blaNDM-1 positive isolates were collected during three years of study from different cities in Iran. Modified hodge test (MHT), double-disk synergy test (DDST) and double-disk potentiation test (DDPT) was performed for detection of carbapenemase and metallo-beta-lactamase (MBL) producing blaNDM-1 positive P. aeruginosa isolates. The antibiotic resistance genes were considered by PCR method. Clonal relationship of blaNDM-1 positive was also characterized using DLST method. Results Antibiotic susceptibility pattern showed that all isolates were resistant to imipenem and ertapenem. DDST and DDPT revealed that 15/29 (51.8%) and 26 (89.7%) of blaNDM-1 positive isolates were MBL producing isolates, respectively. The presence of blaOXA-10,blaVIM-2, blaIMP-1 and blaSPM genes were detected in 86.2%, 41.4%, 34.5% and 3.5% isolates, respectively. DLST typing results revealed the main cluster were DLST 25-11 with 13 infected or colonized patients. Conclusions The presence of blaNDM-1 gene with other MBLs encoding genes in P. aeruginosa is a potential challenge in the treatment of microorganism infections. DLST showed partial diversity among 29 blaNDM-1 positive isolates.
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Affiliation(s)
- Mojtaba Shahin
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.,Department of Medical Laboratory Sciences, Faculty of Medical Sciences, Arak Branch, Islamic Azad University, Arak, Iran
| | - Ali Ahmadi
- Department of Medical Laboratory Sciences, Faculty of Medical Sciences, Arak Branch, Islamic Azad University, Arak, Iran.
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Pyakurel S, Ansari M, Kattel S, Rai G, Shrestha P, Rai KR, Sah AK, Rai SK. Prevalence of carbapenemase-producing Klebsiella pneumoniae at a tertiary care hospital in Kathmandu, Nepal. Trop Med Health 2021; 49:78. [PMID: 34565485 DOI: 10.1186/s41182-021-00368-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/10/2021] [Indexed: 11/29/2022] Open
Abstract
Aim Although carbapenem is the last-resort drug for treating drug-resistant Gram-negative bacterial infections, prevalence of carbapenem-resistant bacteria has substantially increased worldwide owing to irrational use of antibiotics particularly in developing countries like Nepal. Therefore, this study was aimed to determine the prevalence of carbapenemase-producing K. pneumoniae and to detect the carbapenemase genes (blaNDM-2 and blaOXA-48) in at a tertiary care hospital in Nepal. Materials and methods A hospital-based cross-sectional study was carried out from June 2018 to January 2019 at the Microbiology Laboratory of Annapurna Neurological Institute and Allied Sciences, Kathmandu, Nepal. Different clinical samples were collected and cultured in appropriate growth media. Biochemical tests were performed for the identification of K. pneumoniae. Antibiotic susceptibility testing (AST) was performed by the Kirby–Bauer disc diffusion method. The modified Hodge test (MHT) was performed to detect carbapenemase producers. The plasmid was extracted by the modified alkaline hydrolysis method. Carbapenemase-producing K. pneumoniae were further confirmed by detecting blaNDM-2 and blaOXA-48 genes by PCR using specific forward and reverse primers followed by gel electrophoresis. Results Out of the total 720 samples, 38.9% (280/720) were culture positive. K. pneumoniae was the most predominant isolate 31.4% (88/280). Of 88 K. pneumoniae isolates, 56.8% (50/88) were multi-drug resistant (MDR), and 51.1% (45/88) were MHT positive. Colistin showed the highest sensitivity (100%; 88/88), followed by tigecycline (86.4%; 76/88). blaNDM-2 and blaOXA-48 genes were detected in 24.4% (11/45) and 15.5% (7/45) of carbapenemase-producing K. pneumoniae isolates, respectively. Conclusion The rate of MDR and carbapenemase production was high in the K. pneumoniae isolates. Colistin and tigecycline could be the drug of choice for the empirical treatments of MDR and carbapenemase-producing K. pneumoniae. Our study provides a better understanding of antibiotic resistance threat and enables physicians to select the most appropriate antibiotics. Supplementary Information The online version contains supplementary material available at 10.1186/s41182-021-00368-2.
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Nakhostin L, Stadler A, Stute P. Impact of menopausal hormone therapy on colorectal cancer risk-A systematic review. Clin Endocrinol (Oxf) 2021; 95:390-397. [PMID: 33752259 DOI: 10.1111/cen.14469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/14/2021] [Accepted: 03/14/2021] [Indexed: 12/01/2022]
Abstract
Colorectal cancer (CRC) is the second most frequently diagnosed cancer in females worldwide. Menopausal hormone therapy (MHT) has been proposed as a potential protective factor for the development of CRC. Yet, the available evidence is controversial. Thus, we aimed at summarizing the current evidence on the effect of MHT on CRC through a systematic review. A systematic literature search identified 1001 potentially relevant articles, out of which 57 original studies and nine meta-analyses were deemed eligible for the final synthesis. The evidence synthesis showed the following: (1) MHT showed a heterogeneity in findings for CRC risk with a slight tendency to a neutral or protective effect; (2) MHT effect was either neutral or protective on colorectal adenoma; (3) MHT had no impact on tumour grade, subsite and histologic types; (4) MHT was not associated with CRC mortality; and (5) MHT showed heterogeneous effects on CRC stage and invasiveness, respectively. In summary, despite some evidence pointing towards a protective effect of MHT on CRC, MHT is currently not recommended for primary CRC prevention by international guidelines due to several important, potentially harmful effects.
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Affiliation(s)
- Livia Nakhostin
- Department of Obstetrics and Gynecology, University Clinic Inselspital Bern, Bern, Switzerland
| | - Aurelia Stadler
- Department of Obstetrics and Gynecology, University Clinic Inselspital Bern, Bern, Switzerland
| | - Petra Stute
- Department of Obstetrics and Gynecology, University Clinic Inselspital Bern, Bern, Switzerland
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Pouillès JM, Gosset A, Trémollieres F. [Menopause, menopause hormone therapy and osteoporosis. Postmenopausal women management: CNGOF and GEMVi clinical practice guidelines]. Gynecol Obstet Fertil Senol 2021; 49:420-437. [PMID: 33753297 DOI: 10.1016/j.gofs.2021.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Postmenopausal osteoporosis is a frequent clinical condition, which affects nearly 1 in 3 women. Estrogen deficiency leads to rapid bone loss, which is maximal within the first years after the menopause transition and can be prevented by menopause hormone therapy (MHT). Assessment of the individual risk of osteoporosis is primarily based on the measurement of bone mineral density (BMD) at the spine and femur by DXA. Clinical risk factors (CRFs) for fractures taken either alone or in combination in the FRAX score were shown not to reliably predict fractures and/or osteoporosis (as defined by a T-score<-2.5) in early postmenopausal women. If DXA measurement is indicated in all women with CRFs for fractures, it can be proposed on a case-by-case basis, when knowledge of BMD is likely to condition the management of women at the beginning of menopause, particularly the benefit-risk balance of MHT. MHT prevents both bone loss and degradation of the bone microarchitecture in early menopause. It significantly reduces the risk of fracture at all bone sites by 20 to 40% regardless of basal level of risk with an estrogen-dependent dose-effect. Given the inter-individual variability in bone response, individual monitoring of the bone effect of MHT is warranted when prescribed for the prevention of osteoporosis. This monitoring is based on repeated measurement of lumbar and femoral BMD (on the same DXA measurement system) after 2years of MHT, the response criterion being no significant bone loss. Discontinuation of treatment is associated with a resumption of transient bone loss although there is a large variability in the rate of bone loss among women. Basically, there is a return to the level of fracture risk comparable to that of in untreated woman of the same age within 2 to 5years. Therefore, when MHT is prescribed for the prevention of osteoporosis in women with an increased risk at the beginning of menopause, measurement of BMD is recommended when MHT is stopped in order to consider further management of the risk of fracture whenever necessary (with possibly another anti-osteoporotic treatment).
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Affiliation(s)
- J-M Pouillès
- Centre de ménopause et maladies osseuses métaboliques, hôpital Paule-de-Viguier, CHU Toulouse, 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse, France
| | - A Gosset
- Centre de ménopause et maladies osseuses métaboliques, hôpital Paule-de-Viguier, CHU Toulouse, 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse, France
| | - F Trémollieres
- Centre de ménopause et maladies osseuses métaboliques, hôpital Paule-de-Viguier, CHU Toulouse, 330, avenue de Grande-Bretagne, TSA 70034, 31059 Toulouse, France; INSERM U1048, I2MC, équipe 9, université Toulouse III Paul-Sabatier, 1, avenue du Professeur-Jean-Poulhès, BP 84225, 31432 Toulouse cedex 4, France.
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André G. [Menopause hormone therapy and cognition. Postmenopausal women management: CNGOF and GEMVi clinical practice guidelines]. Gynecol Obstet Fertil Senol 2021; 49:448-454. [PMID: 33757928 DOI: 10.1016/j.gofs.2021.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The results of the WHI, which reported a doubling of the risk of Alzheimer's disease (AD) and a decline in cognitive function in women who were given menopause hormone therapy (MHT), have raised concerns on the deleterious impact of MHT on the central nervous system. Such as for the cardiovascular system, the very late age of initiation of treatment and the nature of the molecules have led to conclusions that cannot be extended to women in their fifties, at the onset of their menopause which is the usual age of MHT initiation. The molecules, which are used in France, 17-beta estradiol and natural progesterone (or its isomer, dydrogesterone) are very different from the equine conjugated estrogens and medroxyprogesterone acetate used in the WHI. It can now be stated that if MHT is started within the window of opportunity (i.e. before the age of 60 or within the first 10years after the beginning of menopause) no deleterious effect on cognition is observed. Moreover, cognition remains relatively stable at the beginning of menopause since the cognitive reserve as well as the different compensation circuits allow compensation for estrogen deficiency. This does not in any way prejudge a possible positive effect of MHT on AD, which is very difficult to demonstrate, as the age of onset of this dementia is very late, 20 or 30years after the initiation of treatment.
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Affiliation(s)
- G André
- 15, boulevard Ohmacht, 67000 Strasbourg, France.
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Techatraisak K, Angsuwathana S, Rattanachaiyanont M, Tanmahasumut P, Indhavivadhana S, Wongwananurak T, Leerasiri P, Jirakittidul P. Compliance and health consequences of menopausal hormonal therapy after surgical menopause: A retrospective study in Thailand. J Obstet Gynaecol Res 2020; 47:208-215. [PMID: 33078538 DOI: 10.1111/jog.14486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 07/01/2020] [Accepted: 08/26/2020] [Indexed: 11/27/2022]
Abstract
AIM To study compliance with menopausal hormonal therapy (MHT) until age ≥ 50 year and health consequences after surgical menopause. METHODS A retrospective cohort study of 1000 consecutive surgically menopausal patients who underwent premenopausal surgery before 50 years of age from benign indications during 1996-2012 was performed. Main outcomes were number in year of MHT compliance and health consequences: hypertension (HT), diabetes mellitus (DM), dyslipidemia (DLP), ischemic heart disease (IHD)/myocardial infarction (MI), venous thromboembolism (VTE), stoke, osteopenia/osteoporosis, cognitive impairment/dementia/Alzheimer's disease (AD) /Parkinsonism and breast/other cancers. The MHT nonuser subgroup served as the control. RESULTS Of the 1000 patients, 855 cases used MHT. The median overall follow-up time from surgery for 145 MHT nonuser patients, 435 MHT users until age <50 year and 420 MHT users until age ≥50 year was 12.0 years. Compliance until age ≥50 year was only 49.1%. For MHT users, the overall median age of stopping MHT was 47.0 year with a median MHT use of 6.0 year. After age adjustment at the time of follow-up of all subgroups by forward stepwise logistic regression analysis, the only significantly different health consequence was osteopenia (32.4%, 10.6% and 21.4% in the MHT nonusers, users until age <50 year and users until age ≥50 year, respectively [P < 0.001]). Prevalence of breast cancer, colon cancer and other cancers were not different among subgroups. CONCLUSION The majority of patients used MHT with low compliance until age ≥50 year. In addition, MHT initiation after surgery possibly prevented osteopenia compared with MHT nonusers.
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Affiliation(s)
- Kitirat Techatraisak
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Surasak Angsuwathana
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Manee Rattanachaiyanont
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Prasong Tanmahasumut
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Suchada Indhavivadhana
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Thanyarat Wongwananurak
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Preeyaporn Jirakittidul
- Department of Obstetrics-Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Gurung S, Kafle S, Dhungel B, Adhikari N, Thapa Shrestha U, Adhikari B, Banjara MR, Rijal KR, Ghimire P. Detection of OXA-48 Gene in Carbapenem-Resistant Escherichia coli and Klebsiella pneumoniae from Urine Samples. Infect Drug Resist 2020; 13:2311-2321. [PMID: 32765007 PMCID: PMC7369300 DOI: 10.2147/idr.s259967] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 06/24/2020] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Resistance to carbapenem in Gram-negative bacteria is attributable to their ability to produce carbapenemase enzymes. The main objective of this study was to detect the presence of blaOXA-48 genes in carbapenem-resistant uropathogenic Escherichia coli and Klebsiella pneumoniae isolated from urine samples from patients attending Alka Hospital, Jawalakhel, Lalitpur, Nepal. METHODS A total of 1013 mid-stream urine samples were collected from patients with suspected urinary tract infection (UTI) between April and September 2018. The identified isolates underwent antibiotic susceptibility testing using the modified Kirby-Bauer disc-diffusion method. Phenotypic carbapenemase production was confirmed by the modified Hodge test, and the blaOXA-48 gene was detected using conventional polymerase chain reaction. RESULTS Out of 1013 urine samples, 15.2% (154/1013) had bacterial growth. Among the isolates, 91.5% (141/154) were Gram-negative bacteria, and E. coli was the most common bacterial isolate (62.9%; 97/154), followed by K. pneumoniae 15.6% (24/154). Among 121 bacterial isolates (97 E. coli isolates and 24 K. pneumoniae isolates), 70.3% (52/121) were multidrug-resistant E. coli and 29.7% (22/121) were multidrug-resistant K. pneumoniae. In addition, 9.1% (11/121) were carbapenem resistant (both imipenem and meropenem resistant). Development of multidrug resistance and development of carbapenem resistance were significantly associated (p<0.05). Of the 11 carbapenem-resistant isolates, only seven were carbapenemase producers; of these, 28.6% (2/7) were E. coli, 72.4% (5/7) were K. pneumoniae and 42.8% (3/7) had the blaOXA-48 gene. Of the three bacterial isolates with the blaOXA-48 gene, 33.3% (1/3) were E. coli and 66.7% (2/3) were K. pneumoniae. CONCLUSION One in ten isolates of E. coli and K. pneumoniae were carbapenem resistant. Among carbapenem-resistant isolates, one-third of E. coli and two-thirds of K. pneumoniae had the blaOXA-48 gene. OXA-48 serves as a potential agent to map the distribution of resistance among clinical isolates.
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Affiliation(s)
- Sushma Gurung
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | | | - Binod Dhungel
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Nabaraj Adhikari
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | | | - Bipin Adhikari
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Megha Raj Banjara
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Komal Raj Rijal
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Prakash Ghimire
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
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Abstract
The aim of this article is to analyze and critically appraise the literature regarding optimal bone health care in women with breast cancer and, more specifically, to present (1) the causes of bone loss in breast cancer patients, (2) the appropriate screening for osteoporosis and fracture risk estimation, (3) optimal prevention and therapeutic strategies for osteoporosis and fractures, (4) the role of antiresorptive agents as adjuvant therapy for the prevention of bone metastases and increase of overall survival, and (5) current data on the possible use of menopausal hormone therapy (MHT) in these patients. The objective is to provide a sound pathophysiological background along with evidence-based and practical recommendations for physicians managing such women.
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Affiliation(s)
- Stavroula A Paschou
- Second Department of Obstetrics and Gynaecology, Aretaieio Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Areti Augoulea
- Second Department of Obstetrics and Gynaecology, Aretaieio Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Irene Lambrinoudaki
- Second Department of Obstetrics and Gynaecology, Aretaieio Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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El-Badawy MF, El-Far SW, Althobaiti SS, Abou-Elazm FI, Shohayeb MM. The First Egyptian Report Showing the Co-Existence of bla NDM-25, bla OXA-23, bla OXA-181, and bla GES-1 Among Carbapenem-Resistant K. pneumoniae Clinical Isolates Genotyped by BOX-PCR. Infect Drug Resist 2020; 13:1237-1250. [PMID: 32425561 PMCID: PMC7196799 DOI: 10.2147/idr.s244064] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/04/2020] [Indexed: 12/18/2022] Open
Abstract
Background and Objective The emergence of carbapenem-resistant K. pneumoniae (CRKP) continues to escalate and is alarming because of the emergence of pan drug-resistant strains. The objective of this study was to investigate the existence of 12 carbapenemase genes among CRKP clinical isolates. Methods Ninety-six Klebsiella spp. clinical isolates were collected. The isolates were identified phenotypically and genotypically. These isolates were screened for susceptibility to 24 different antibiotics. The modified Hodge test (MHT) and the Carba Nordmann/Poirel (NP) test were used to phenotypically screen carbapenem-resistant strains for carbapenemase production. Phenotypic characterization of carbapenemases was performed using the combined disk synergy test (CDST). Additionally, the presence of 12 carbapenemase genes in CRKP isolates was investigated. The DNA sequence of bla NDM and bla GES genes was determined. The BOX-PCR technique was used to determine the clonal relationship between CRKP isolates. Results All carbapenem-resistant isolates were related to K. pneumoniae. Susceptibility testing showed that 19.79% (19/96) of the collected isolates were carbapenem-resistant. Of the CRKP isolates, 68.42% (13/19) tested positive for the MHT and Carba NP test. CDST showed that 42.11% (8/19), 63.16% (12/19), 47.37% (9/19), and 73.68% (14/19) of the CRKP isolates tested positive for the inhibitory effect of clavulanic acid, sulbactam, phenylboronic acid, and tazobactam, respectively, while 84.21% (16/19) and 68.42% (13/16) tested positive for the inhibitory effect of EDTA and mercaptopropionic acid, respectively. It was found that 10.53% (2/19) of the isolates tested positive for the inhibitory effect of sodium chloride. Molecular investigation of carbapenemases showed that 26.32% (5/19), 73.68% (14/19), 21.05% (4/19), 10.53% (2/19), and 5.26% (1/19) of the isolates tested positive for bla NDM, bla OXA-48, bla OXA-181, bla OXA-51, and bla OXA-23, respectively. None of the isolates tested positive for bla OXA-40 and bla OXA-58. Two allelic variants of bla NDM (bla NDM-1 and bla NDM-25) were detected. BOX-PCR revealed high clonal relatedness between CRKP isolates. Conclusion MHT was more sensitive than Carba NP test for evaluating carbapenemase production and class D carbapenemase genes were the most prevalent of the 12 carbapenemase genes that were evaluated.
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Affiliation(s)
- Mohamed F El-Badawy
- Division of Pharmaceutical Microbiology, Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, Taif, Kingdom of Saudi Arabia.,Department of Microbiology and Immunology, Faculty of Pharmacy, Misr University for Science and Technology, 6th of October City, Egypt
| | - Shaymaa W El-Far
- Division of Pharmaceutical Microbiology, Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, Taif, Kingdom of Saudi Arabia
| | | | - Fatma I Abou-Elazm
- Department of Microbiology and Immunology, Faculty of Pharmacy, Misr University for Science and Technology, 6th of October City, Egypt
| | - Mohamed M Shohayeb
- Department of Microbiology and Biotechnology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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Warsi N, Thiong'o GM, Zuccato J, Ibrahim GM. Multiple hippocampal transections: Post-operative Memory Outcomes and Seizure Control. Epilepsy Behav 2019; 100:106496. [PMID: 31654940 DOI: 10.1016/j.yebeh.2019.106496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/11/2019] [Accepted: 08/14/2019] [Indexed: 11/30/2022]
Abstract
OBJECT Temporal lobectomy with amygdalohippocampectomy is the standard surgical treatment for appropriate candidates with medically-intractable temporal lobe epilepsy. More recently, because of the risk of postoperative language/memory decline in a subset of patients with intact memory, a multiple hippocampal transection (MHT) approach has been proposed to preserve function. METHODS Studies of MHT reporting both Engel and verbal memory outcome measures were included in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for reporting of systematic reviews. Data were extracted on verbal memory function pre- and postoperatively, seizure outcome, and demographic factors. A random effects model was used to determine overall verbal memory function after MHT, and a meta-regression model was applied to identify factors associated with outcome. RESULTS A total of 114 patients across five studies were included. Engel class I seizure outcome across all studies ranged from 64.7% to 94.7%, with 84 of the 114 patients achieving this outcome. Preoperative verbal memory score was most strongly associated with postoperative verbal memory preservation (p = 0.003). Of 59 patients with full verbal memory outcome scores, 86.8% (95% CI [confidence interval]: 77.6%-96%) had complete preservation of verbal memory relative to preoperative functional baseline. CONCLUSION Multiple hippocampal transection is an evolving surgical technique. Although the present data are limited, the current systematic review suggests that this approach is effective at preserving verbal memory in patients with good baseline function. Although reasonable seizure outcomes have been reported with MHT, comparison to a well-established procedure such as temporal lobectomy and amydalohippocampectomy must be guided by further evidence.
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Affiliation(s)
- Nebras Warsi
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Grace M Thiong'o
- Division of Neurosurgery, The Hospital for Sick Children, Department of Surgery, University of Toronto, Toronto, Canada
| | - Jeff Zuccato
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - George M Ibrahim
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
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Khadilkar SS. Post-reproductive Health: Window of Opportunity for Preventing Comorbidities. J Obstet Gynaecol India 2019; 69:1-5. [PMID: 30814803 DOI: 10.1007/s13224-019-01202-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 01/12/2019] [Indexed: 10/27/2022] Open
Abstract
Post-reproductive health is a challenging issue as it is surrounded by many controversies. Menopausal hormone therapy (MHT) has witnessed a rise and fall over last several years. We do understand that comorbidities incidence rises beyond menopause and we need to prevent them. When MHT was used universally, the risk-benefit ratio became unfavorable. Hence, the use of MHT dropped drastically. But newer studies have introduced the concept of window of opportunity, wherein MHT does not have harmful effects, but in fact it will prevent comorbidities associated with menopause. This editorial focuses on the prevention of menopause- and MHT-related comorbidities.
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Abstract
Rapid advance in oncology leads to increasing survival of oncologic patients. More and more of them live long enough to reach either the natural age of menopause or, as a side effect of their oncotherapy, experience the cessation of gonadal function, leading to premature ovarian insufficiency, with disturbing vasomotor symtoms and long-term negative cardiovascular and skeletal effects. Thus, an ever increasing number of cancer survivors search endocrinologic help in the form of hormone replacement therapy (HRT). The misinterpretation of the WHI (Women's Health Initiative) Study has lead to an irrational fear of female hormone replacement, both by the general population and medical professionals. It has seemed the logical and safe conclusion to many physicians to avoid HRT, supposing that this attitude definitely causes no harm, whereas the decision of prescribing estrogen alone or with progestins might bear oncologic and thromboembolic risks and may even lead to litigation in case of a potentially related complication. However, it was known even before the WHI results that premature menopause and hypogonadism decreases the life expectancy of women by years through its skeletal and cardiovascular effects, and this negative effect correlates with the length of the hypoestrogenaemic period. Therefore, the denial of HRT also needs to be supported by evidence and should be weighed againts the risks of HRT. Yet, the oncologic risk of HRT is extremely difficult to assess. In this work we review the latest evidence from in vitro experiments to clinical studies, regarding HRT in survivors of gynecologic and non-gynecologic cancers. Based on our literature research, we group tumours regarding the oncologic risk of properly chosen female hormone replacement therapy in cancer survivors as follows: ’HRT is advanageous’ (e.g. endometrial cancer type I, cervical adenocarcinoma, haematologic malignancies, local cutaneous malignant melanoma, colorectal cancer, hepatocellular cancer); ’HRT is neutral’ (e.g. BRCA 1/2 mutation carriers without cancer, endometrial cancer type II, uterinal carcinosarcoma and adenosarcoma, certain types of ovarian cancer, cervical, vaginal and vulvar squamous cell carcinoma, prolactinoma, kidney cancer, pancreatic cancer, thyroid cancer); ’HRT is relatively contraindicated’ for various reasons (e.g. leiomyosarcoma, certain types of ovarian tumours, brain tumours, advanced metastatic malignant melanoma, lung cancer, gastric cancer, bladder cancer); ’HRT is diasadvantageous and thus contraindicated’ (e.g. breast cancer, endometrial stroma sarcoma, meningioma, glioma, hormone receptor positive gastric and bladder cancer).
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Affiliation(s)
- Tamás Deli
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - Mónika Orosz
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Jakab
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Othman HB, Halim RMA, Abdul-Wahab HEEA, Atta HA, Shaaban O. Pseudomonas aeruginosa - Modified Hodge Test (PAE- MHT) and ChromID Carba Agar for Detection of Carbapenemase Producing Pseudomonas Aeruginosa Recovered from Clinical Specimens. Open Access Maced J Med Sci 2018; 6:2283-2289. [PMID: 30607177 PMCID: PMC6311476 DOI: 10.3889/oamjms.2018.414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/08/2018] [Accepted: 10/09/2018] [Indexed: 11/21/2022] Open
Abstract
AIMS: This study aims to evaluate the ability of ChromID Carba agar, and Pseudomonas aeruginosa modified Hodge test (PAE-MHT) for detection of carbapenemase-producing P. aeruginosa and to determine the associated carbapenemase gene classes by PCR. METHODS: One hundred Carbapenem-resistant P. aeruginosa (CRPA) isolates were tested for: i) carbapenemases production by ChromID carba agar, Modified Hodge test (MHT) and (PAE-MHT) and ii) detection of some carbapenemase genes by PCR. RESULTS: All (100%) of the isolates showed growth on ChromID Carba agar with 100% sensitivity. Using MHT, 54% of isolates were positive, 3% were indeterminate, and 43% were negative, demonstrating 58.9% sensitivity and 80% specificity. On performing PAE-MHT, 91% of the strains were positive, 3% were intermediate, and 6% were negative, demonstrating 97.9% sensitivity and 80% specificity. The most prevalent gene was blaKPC (81%), followed by blaVIM (74%); blaIMP was detected in only one isolate, and blaOXA-48 in 34% of the isolates. CONCLUSIONS: We conclude that PAE-MHT and ChromID Carba are sensitive, specific, simple and cost-effective screening tests for detection of CRPA isolates compared to the traditional MHT.
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Affiliation(s)
- Hala B Othman
- Clinical Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | | | | | - Hossam Abol Atta
- Plastic and Reconstructive Surgery Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Omyma Shaaban
- Clinical Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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22
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Abstract
CONTEXT Ma Huang Tang (MHT) has been used to treat influenza, fever, bronchial asthma, etc. as a traditional Chinese medication. However, the anti-inflammation mechanism of MHT remains unclear. OBJECTIVE The study identifies the possible mechanisms of MHT on ovalbumin (OVA)-induced acute bronchial asthma in mice. MATERIALS AND METHODS First, an asthma-related protein-protein interaction (PPI) network was constructed. And then, the acute bronchial asthma mice models were established by exposing to aerosolized 1% ovalbumin for 30 min/day for 1 week, and the mice were administered 2.0, 4.0, or 8.0 g/kg of MHT daily. To evaluate therapeutic effect, sensitization time, abdominal breathing time, eosinophils in bronchoalveolar lavage fluid, and tissue and trachea pathology were examined. Related genes were measured using RNA sequencing (RNA-seq). The expression levels of TLR9 in lung and trachea tissues were determined by immunohistochemical staining. RESULTS MHT had a LD50 = 19.2 g/kg against asthma, while MHT at high doses (8 g/kg) effectively extended the sensitization time and abdominal breathing time and alleviated OVA-induced eosinophilic airway inflammation and mitigated pathological changes. The RNA-seq assay showed that the high-dose MHT resulted in a significant decrease in the levels of TLR9, TRAF6, TAB2, etc. in the lung tissue. Immunohistochemical assay confirmed the down-regulated of TLR9. Molecular docking revealed that six MHT compounds potentially mediated the TLR9 signaling pathway. DISCUSSION AND CONCLUSIONS MHT could mitigate the pathological changes of acute asthma-like syndrome through inhibition of the TLR9 pathway. Results of this study may provide a reference for the development of a novel therapy for patients with allergic asthma.
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Affiliation(s)
- Jiayuan Jiao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- Pharmaceutical Research Laboratory, Shenyang Research Institute of Chemical Industry Co., Ltd, Shenyang, China
| | - Jiming Wu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- School of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin, China
| | - Jiali Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Yaping Guo
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Le Gao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Honggang Liang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Jian Huang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- Department of Medicinal Chemistry and Natural Medicine Chemistry (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, P. R. China
- CONTACT Jian Huang School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jinhui Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- Department of Medicinal Chemistry and Natural Medicine Chemistry (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, P. R. China
- Jinhui Wang Department of Medicinal Chemistry and Natural Medicine Chemistry State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, P. R. China
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Uddin F, McHugh TD, Roulston K, Platt G, Khan TA, Sohail M. Detection of carbapenemases, AmpC and ESBL genes in Acinetobacter isolates from ICUs by DNA microarray. J Microbiol Methods 2018; 155:19-23. [PMID: 30423363 DOI: 10.1016/j.mimet.2018.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/04/2018] [Accepted: 11/09/2018] [Indexed: 10/27/2022]
Abstract
The accumulation of multiple inherent and acquired resistance mechanisms in Acinetobacter spp. results in emergence of "pandrug resistant" strains which is one of the major concerns in healthcare sectors worldwide. Surveillance of the carbapenemase/ extended-spectrum β-lactamases (ESBLs) genes in A. baumannii by phenotypic methods is challenging especially in developing countries, like Pakistan. In this context, a novel microarray (CT 103XL Check-MDR) assay was used for simultaneous detection of genes encoding clinically important carbapenemases and ESBLs. The results were compared with the phenotypic methods including MHT, Rapidec Carba NP, EDTA+DDST and Rosco (KPC/MBL). The results of the microarray were also confirmed by PCR. All of the strains of A. baumannii (47) were resistant to imipenem and meropenem. Microarray and PCR results showed presence of OXA-23 in all the isolates of A. baumannii while 36.17% also harbored PER. Rosco kit test showed 100% sensitivity to detect carbapenemases but exhibited low specificity to classify them. Rapidec Carba NP test has 100% sensitivity and specificity to detect the carbapenemases when compared with microarray. Sensitivity and specificity of microarray assay were 100% for bla-genes in comparison to PCR. This reveals that Check-MDR CT103 XL assay is an accurate method for the identification of ESBLs and carbapenemase genes in A. baumannii in comparison to the other methods.
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Affiliation(s)
- Fakhur Uddin
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan
| | | | - Kerry Roulston
- Centre for Clinical Microbiology, University College London, UK
| | - Gareth Platt
- Centre for Clinical Microbiology, University College London, UK
| | - Taseer Ahmed Khan
- Department of Physiology, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan.
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Jafari Z, Harati AA, Haeili M, Kardan-Yamchi J, Jafari S, Jabalameli F, Meysamie A, Abdollahi A, Feizabadi MM. Molecular Epidemiology and Drug Resistance Pattern of Carbapenem-Resistant Klebsiella pneumoniae Isolates from Iran. Microb Drug Resist 2018; 25:336-343. [PMID: 30351186 DOI: 10.1089/mdr.2017.0404] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The emergence and dissemination of carbapenem-resistant Klebsiella pneumoniae (CRKP) isolates and their involvement in several nosocomial outbreaks are of high concern. This study was conducted to investigate the genetic relatedness and molecular determinants of carbapenem resistance in 100 CRKP isolates. Susceptibility to carbapenems as well as other antibiotics was determined by using disk diffusion method. The Modified Hodge test was performed for detection of carbapenemase production. The minimum inhibitory concentrations of selected antibiotics were determined by broth microdilution method. The presence of blaOXA-48, blaKPC, blaNDM, and blaVIM carbapenemase genes was examined by PCR, and clonal relatedness of CRKP isolates was investigated by pulsed-field gel electrophoresis (PFGE) analysis. blaOXA-48 was the most frequent carbapenemase gene (72%), followed by blaNDM (31%). None of the isolates harbored blaKPC and blaVIM genes. PFGE separated the majority of isolates into 10 clusters, including the major clusters A and B, carrying blaOXA-48, and clusters C and D, carrying blaNDM, and 4 isolates had a unique PFGE pattern. An increased rate of colistin resistance (50%) was detected among the isolates. Tigecycline was found to be the most active agent against CRKP isolates. Our results revealed that high prevalence of blaOXA-48 and blaNDM carbapenamses and resistance to colistin are alarming threats, necessitating an immediate action to prevent the spread of carbapenem-colistin-resistant K. pneumoniae isolates in Iran.
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Affiliation(s)
- Zeinab Jafari
- 1 Department of Microbiology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran .,2 Pediatric Infectious Disease Research Center, Tehran University of Medical Sciences , Tehran, Iran
| | - Ahad Ali Harati
- 1 Department of Microbiology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Mehri Haeili
- 3 Department of Biology, Faculty of Natural Sciences, University of Tabriz , Tabriz, Iran
| | - Jalil Kardan-Yamchi
- 4 Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran
| | - Sirous Jafari
- 5 Department of Infectious Diseases, Imam Khomeini Hospital, Tehran University of Medical Sciences , Tehran, Iran
| | - Fereshteh Jabalameli
- 1 Department of Microbiology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Alipasha Meysamie
- 6 Department of Community Medicine, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Alireza Abdollahi
- 7 Department of Pathology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran
| | - Mohammad Mehdi Feizabadi
- 1 Department of Microbiology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran .,8 Thorax Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences , Tehran, Iran
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Shin H, Ku B, Nelson JK, Ko H. Robust Target Tracking with Multi-Static Sensors under Insufficient TDOA Information. Sensors (Basel) 2018; 18:s18051481. [PMID: 29738520 PMCID: PMC5982645 DOI: 10.3390/s18051481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/27/2018] [Accepted: 04/28/2018] [Indexed: 11/16/2022]
Abstract
This paper focuses on underwater target tracking based on a multi-static sonar network composed of passive sonobuoys and an active ping. In the multi-static sonar network, the location of the target can be estimated using TDOA (Time Difference of Arrival) measurements. However, since the sensor network may obtain insufficient and inaccurate TDOA measurements due to ambient noise and other harsh underwater conditions, target tracking performance can be significantly degraded. We propose a robust target tracking algorithm designed to operate in such a scenario. First, track management with track splitting is applied to reduce performance degradation caused by insufficient measurements. Second, a target location is estimated by a fusion of multiple TDOA measurements using a Gaussian Mixture Model (GMM). In addition, the target trajectory is refined by conducting a stack-based data association method based on multiple-frames measurements in order to more accurately estimate target trajectory. The effectiveness of the proposed method is verified through simulations.
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Affiliation(s)
- Hyunhak Shin
- Department of Electrical Engineering, Korea University, Seoul 02841, Korea.
| | - Bonhwa Ku
- Department of Electrical Engineering, Korea University, Seoul 02841, Korea.
| | - Jill K Nelson
- Department of Electrical and Computer Engineering, George Mason University, Fairfax, VA 22030, USA.
| | - Hanseok Ko
- Department of Electrical Engineering, Korea University, Seoul 02841, Korea.
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Abstract
Major advances in menopause hormone therapy (MHT) hold promise in the future of better and safer care for women at and after the menopause. The principal advances are: (1) the critical window or 'window of opportunity' in the 10 years or so after the menopause, during which the benefits of MHT in healthy women exceed any risks; (2) use of transdermal instead of oral administration of estrogen to reduce the risk of venous thromboembolism; (c) investigation of the use of oral micronized progesterone (MP) and vaginal MP to prevent endometrial hyperplasia and carcinoma without any increased risk of breast cancer and venous thromboembolism in postmenopausal women receiving estrogens; vaginal MP prevents endometrial proliferation in the short term but the long-term effects in MHT remain to be established; (4) investigation into the use of intrauterine levonorgestrel-releasing devices (LNG-IUDs), which are an attractive form of MHT in perimenopausal women, providing contraception and reducing uterine bleeding, although the risk of breast cancer with LNG-IUDs requires clarification. Women in the future can look forward to a symptom-free menopause and to safer and more beneficial MHT.
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Affiliation(s)
- D A Davey
- a Faculty of Health Sciences , University of Cape Town , Western Cape , South Africa
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VAN Dorssen CF, Gordon CA, Li Y, Williams GM, Wang Y, Luo Z, Gobert GN, You H, McManus DP, Gray DJ. Rodents, goats and dogs - their potential roles in the transmission of schistosomiasis in China. Parasitology 2017; 144:1633-42. [PMID: 28637527 DOI: 10.1017/S0031182017000907] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Schistosomiasis in China has been substantially reduced due to an effective control programme employing various measures including bovine and human chemotherapy, and the removal of bovines from endemic areas. To fulfil elimination targets, it will be necessary to identify other possible reservoir hosts for Schistosoma japonicum and include them in future control efforts. This study determined the infection prevalence of S. japonicum in rodents (0-9·21%), dogs (0-18·37%) and goats (6·9-46·4%) from the Dongting Lake area of Hunan province, using a combination of traditional coproparasitological techniques (miracidial hatching technique and Kato-Katz thick smear technique) and molecular methods [quantitative real-time PCR (qPCR) and droplet digital PCR (ddPCR)]. We found a much higher prevalence in goats than previously recorded in this setting. Cattle and water buffalo were also examined using the same procedures and all were found to be infected, emphasising the occurrence of active transmission. qPCR and ddPCR were much more sensitive than the coproparasitological procedures with both KK and MHT considerably underestimating the true prevalence in all animals surveyed. The high level of S. japonicum prevalence in goats indicates that they are likely important reservoirs in schistosomiasis transmission, necessitating their inclusion as targets of control, if the goal of elimination is to be achieved in China.
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Saseedharan S, Sahu M, Pathrose EJ, Shivdas S. Act Fast as Time Is Less: High Faecal Carriage of Carbapenem-Resistant Enterobacteriaceae in Critical Care Patients. J Clin Diagn Res 2016; 10:DC01-DC05. [PMID: 27790429 DOI: 10.7860/jcdr/2016/17638.8400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 05/19/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Carbapenem-resistant Enterobacteriaceae (CRE) are drug-resistant Gram-negative bacteria that are present in the community as well as in hospitals. Their infection and colonisation puts critically ill patients at high risk due to the drug-resistant nature of the strains and possible spreading of these organisms, even in a hospital environment. AIM To examine the presence and types of Enterobacteriaceae species in patients admitted directly from the community. MATERIALS AND METHODS The present study was a one-month pilot conducted in the ICU of a tertiary care hospital in Mumbai, India in 2015. Faecal samples of patients admitted from the community directly to the ICU were analysed using tests like MHT (Modified Hodge) and EDTA for the presence of IMP (action on Imipenem) and KPC (Klebsiella Test Pneumoniae Carbapenemase) producing strains of Enterobacteriaceae. Polymerase Chain Reaction (PCR) was performed to look for VIM, IMP, NDM1, OXA, and KPC genes. Antibiotic Sensitivity Test was carried out as per CLSI guidelines. RESULTS The results showed an alarming level of faecal carriage rates in adult ICU patients. Klebsiella pneumonia was the most common carbapenem-resistant isolate, closely followed by Escherichia coli. PCR results revealed nine strains were positive for bla(KPC) gene, from which 7 were Klebsiella pneumoniae and one each of Escherichia coli and Klebsiella oxytoca was observed. Antibiotic Sensitivity Test results showed that the isolates had maximum sensitivity to Colistin (100%) and Tigecycline (95%). CONCLUSION These levels indicate that in the absence of CRE screenings, proper isolation of carrier patients is not possible, leading to possible spreading of these resistant bacteria strains in ICUs. A longer period of study is required to obtain more substantial data to validate the results of this pilot.
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Affiliation(s)
- Sanjith Saseedharan
- Head, Department of Critical Care, S.L. Raheja Hospital (A Fortis Associate) , Mumbai, Maharashtra, India
| | - Manisa Sahu
- Head, Department of Microbiology, S.L. Raheja Hospital (A Fortis Associate) , Mumbai, Maharashtra, India
| | - Edwin Joseph Pathrose
- ICU Registrar, Critical Care Department, S.L. Raheja Hospital (A Fortis Associate) , Mumbai, Maharashtra, India
| | - Sarita Shivdas
- Research Scholar in Critical Microbiology, Department of Microbiology, S.L. Raheja Hospital (A Fortis Associate) , Mumbai, Maharashtra, India
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Pragasam AK, Sahni RD, Anandan S, Sharma A, Gopi R, Hadibasha N, Gunasekaran P, Veeraraghavan B. A Pilot Study on Carbapenemase Detection: Do We See the Same Level of Agreement as with the CLSI Observations. J Clin Diagn Res 2016; 10:DC09-13. [PMID: 27630840 DOI: 10.7860/jcdr/2016/16417.8152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 04/12/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Rapid identification of carbapenemase producing organisms is of great importance for timely detection, treatment and implementation of control measures to prevent the spread. The Modified Hodge Test (MHT) and Carba NP test is recommended by CLSI for the detection of carbapenemases in Enterobacteriaceae. However, MHT may give false positive results or fail to detect metallo β-lactamases (MBLs). In the US, MHT is the most widely used test for detection of carbapenemases and has been found to have a sensitivity and specificity of >90% for bla KPC producers. However, in India, the prevalence of bla NDM is higher than bla KPC producers. AIM To evaluate the usefulness of CarbaNP in an Indian setting. MATERIALS AND METHODS A total of 260 isolates of carbapenem resistant E.coli (n=57), Klebsiella spp. (n=85), Pseudomonas aeruginosa (n=60), and Acinetobacter baumannii (58) isolated from clinical specimens between 2012-2014 at the Christian Medical College, Vellore were included in the study. All the carbapenem resistant isolates were subjected to CarbaNP, MHT and multiplex PCR for detection of carbapenemase genes. RESULTS CarbaNP was found to be positive in 88% (n=50/57), 81% (n=69/51), 38% (n=23/60) and 81% (n=47/58) for E.coli, Klebsiella spp., P. aeruginosa, and A. baumannii respectively. While in MHT it showed, 89% (n=51/57) and 81 % (n=69/85) for E.coli and Klebsiella spp. respectively. In P.aeruginosa, synergy testing of imipenem plus cloxacillin showed that, 65% of CarbaNP negatives were ampC producers. Overall, the sensitivity and specificity of CarbaNP was found to be 94% and 100 for bla NDM; 77% and 100 % for bla OXA-48 like producers and 81% and 100% for CarbAcinetoNP respectively. CONCLUSION This observation was more than what was reported in CLSI guidelines. Therefore, it is advisable to evaluate an assay for better laboratory diagnosis at respective regions.
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Affiliation(s)
- Agila Kumari Pragasam
- Research Associate, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Rani Diana Sahni
- Professor, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Shalini Anandan
- Professor, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Archa Sharma
- Registrar, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Radha Gopi
- Research Associate, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Noorjahan Hadibasha
- Research Associate, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Priya Gunasekaran
- Research Associate, Department of Clinical Microbiology, Christian Medical College , Vellore, India
| | - Balaji Veeraraghavan
- Professor & Head, Department of Clinical Microbiology, Christian Medical College , Vellore, India
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Abidin NZZ, Sulong A, Alfizah H, Ding CH, Muttaqillah NAS, Rahman MM. Screening for New Delhi metallo-β-lactamase-1 in Enterobacteriaceae: Is there a role for the modified Hodge test? Pak J Med Sci 2016; 31:1340-3. [PMID: 26870093 PMCID: PMC4744278 DOI: 10.12669/pjms.316.8159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The New Delhi metallo-β-lactamase-1 (NDM-1) enzyme is a plasmid-encoded enzyme that inactivates carbapenem antibiotics. This study aims to ascertain if the modified Hodge test (MHT) has a role in screening for NDM-1 in Enterobacteriaceae with reduced carbapenem susceptibility. METHODS Over a period of one year, all Enterobacteriaceae isolates from all clinical specimens with reduced susceptibility to at least one carbapenem were subjected to MHT and conventional polymerase chain reaction (PCR) detection of the NDM-1 gene. RESULTS A total of 13,098 Enterobacteriaceae isolates were screened and 63 (0.48%) had reduced susceptibility to at least one carbapenem. Out of the 63 isolates, 45 (71.4%) were MHT-positive. The NDM-1 gene was detected in 18 of the 63 isolates (28.6%). All 18 PCR-positive isolates were also MHT-positive. Thus, the sensitivity and specificity of the MHT in detecting NDM-1 in Enterobacteriaceae with reduced carbapenem susceptibility are 100% and 40%, respectively. CONCLUSION The MHT is a useful test to screen for the presence of NDM-1 in Enterobacteriaceae with reduced carbapenem susceptibility. However, due to its rather low specificity, all MHT-positive isolates should be subjected to alternative tests (e.g. PCR) for confirmation, especially if other types of carbapenemases (e.g. KPC) are prevalent.
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Affiliation(s)
- Nor Zanariah Zainol Abidin
- Nor Zanariah Zainol Abidin, Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Anita Sulong
- Anita Sulong, Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Hanafiah Alfizah
- Hanafiah Alfizah, Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Chuan Hun Ding
- Chuan Hun Ding, Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Najihan Abdul Samat Muttaqillah
- Najihan Abdul Samat Muttaqillah, Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Md Mostafizur Rahman
- Md Mostafizur Rahman. Department of Medical Microbiology & Immunology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Cadeau C, Fournier A, Mesrine S, Clavel-Chapelon F, Fagherazzi G, Boutron-Ruault MC. Interaction between current vitamin D supplementation and menopausal hormone therapy use on breast cancer risk: evidence from the E3N cohort. Am J Clin Nutr 2015; 102:966-73. [PMID: 26354532 DOI: 10.3945/ajcn.114.104323] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 07/30/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Experimental studies suggest protective effects of vitamin D on breast carcinogenesis, particularly on estrogen receptor-positive tumors. Epidemiologic data are less conclusive. OBJECTIVE Our objective was to investigate the association between postmenopausal breast cancer risk and current or past vitamin D supplementation overall and according to the use of menopausal hormone therapy (MHT). DESIGN Between 1995 and 2008, 2482 invasive breast cancer cases were diagnosed among 57,403 postmenopausal women from the E3N prospective cohort during 581,085 person-years. Vitamin D supplementation was assessed from biennially self-administered questionnaires sent in 1995, 2000, 2002, and 2005 and from medico-administrative data on drug reimbursements since 2004. Multivariable HRs for primary invasive breast cancer and 95% CIs were estimated by using Cox models. RESULTS A decreased postmenopausal breast cancer risk was associated with current (HR: 0.82; 95% CI: 0.69, 0.97) but not past (HR: 1.10; 95% CI: 0.92, 1.31) vitamin D supplementation (P-homogeneity = 0.02). The association with current vitamin D supplementation differed according to MHT use: ever users (HR: 0.74; 95% CI: 0.60, 0.90) and never users (HR: 1.13; 95% CI: 0.89, 1.56); P-homogeneity = 0.02. CONCLUSIONS In this observational study, current vitamin D supplementation, mostly taken daily and combined with calcium, was associated with a decreased postmenopausal breast cancer risk in MHT users. These findings should be confirmed before considering vitamin D supplementation to partly balance the MHT-associated increased breast cancer risk.
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Affiliation(s)
- Claire Cadeau
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
| | - Agnès Fournier
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
| | - Sylvie Mesrine
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
| | - Françoise Clavel-Chapelon
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
| | - Guy Fagherazzi
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
| | - Marie-Christine Boutron-Ruault
- Inserm, Centre for Research in Epidemiology and Population Health, Nutrition, Hormones and Women's Health Team, Villejuif Cedex, France; Université Paris-Sud, Villejuif Cedex, France; and Gustave Roussy, Villejuif Cedex, France
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Bina M, Pournajaf A, Mirkalantari S, Talebi M, Irajian G. Detection of the Klebsiella pneumoniae carbapenemase (KPC) in K. pneumoniae Isolated from the Clinical Samples by the Phenotypic and Genotypic Methods. Iran J Pathol 2015; 10:199-205. [PMID: 26351485 PMCID: PMC4539771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 09/26/2014] [Indexed: 06/05/2023]
Abstract
BACKGROUND AND OBJECTIVE The production of carbapenemases especially Klebsiella pneumoniae carbapenemase (KPC) is the most important mechanism of enzymatic resistance in isolated Enterobacteriaceae such as K. pneumoniae . The purpose of this study was detected of the carbapenemase producer K. pneumoniae strains with phenotypic and genotypic methods. METHOD Out of 800 strains, 270 K. pneumoniae strains (33.7%), were obtained. Antibiotic susceptibility test was performed by disk diffusion method in accordance with CLSI guidelines. Carbapenem resistant strains were identified by the Modified Hodge Test based on CLSI instruction and PCR for surveying the presence of bla -KPC gene. RESULTS A total 270 K. pneumoniae strains were collected. Antibiotic susceptibility test results showed the highest and lowest resistance was related to piperacillin (60.6%) and carbapenems (14.6%) respectively. 80.5% (33 of 41) isolates were positive by MHT, but all of them (100%) were negative for amplification of the bla -KPC gene in the PCR method. CONCLUSION The MHT was an appropriate method for approving carbapenemase production. Moreover, a laboratory could accept the carbapenemase production with PCR method for the bla-KPC gene, which has the additional profit of validating which KPC is present.
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Affiliation(s)
- Masoume Bina
- Dept of Microbiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abazar Pournajaf
- Dept of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shiva Mirkalantari
- Dept of Microbiology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Malihe Talebi
- Dept of Microbiology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Gholamreza Irajian
- Dept of Microbiology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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Vornicu N, Deselnicu V, Bibire C, Ivanov D, Doroftei F. Analytical techniques used for the characterization and authentification of six ancient religious manuscripts (XVIII-XIX centuries). Microsc Res Tech 2014; 78:70-84. [PMID: 25331722 DOI: 10.1002/jemt.22447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/28/2014] [Indexed: 11/12/2022]
Abstract
This article presents the experimental results of a research on six manuscripts (three of the XVIII century and three of XIX century) belonging collection of old religious books to the Moldovan Metropolitan Church of Romania. Non-invasive techniques (optical microscopy [OM], scanning electron microscopy/energy dispersive X-ray system, X-ray fluorescence analysis, shrinkage temperature, and Fourier transform infrared spectroscopy/attentuated total reflectance) provided information on the degree of degradation and identification of the leather bookbinding type. Moreover, visual assessment and OM revealed the extent of the surface degradation (wane, biological attack, change color, etc.). The degradation extent of the skin bindings was determined on the 12 samples. The insight on the mechanism of degradation was accomplished by analyzing the deterioration of collagen fibers in terms of shrinkage temperature and chemical modifications induced by oxidative and hydrolytic processes. Shrinkage temperature values were lower compared with the literature data for collagen, indicating that the leather bookbinding suffered intrinsic damage. Morphological analysis was accomplished by microscopy and allowed the identification of skin type and provided information about its processing technique. Mineral elements were identified for leather composition and contributed to the information regarding the origin and the extent of degradation of the leather bookbinding, of the studied manuscripts. The analyzed results were useful in determining the state of preservation and were able to provide an increased efficiency of further restoration. The correlation of the obtained data brought new contributions to the knowledge of the leather covers for the book technique in the XVIII and XIX centuries in monastic workshops of Eastern Europe.
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Affiliation(s)
- Nicoleta Vornicu
- Metropolitan Center of Research T.A.B.O.R, The Metropolitanate of Moldavia and Bukovina, Closca 9, Iasi, RO-700066, Romania
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Abstract
Carbapenem-resistant Enterobacteriaceae are increasingly reported worldwide and cause therapeutic problem in health care facilities. In this study 28 imipenem-resistant K. pneumoniae were examined for expression of carbapenemases by phenotypic and genotypic methods. Modified Hodge Test (MHT), CarbaNP test were used for phenotypic detection, and PCR using specific primers for the detection of blaOXA-48-, blaKPC-, blaNDM- and blaVIM-type carbapenemases with specific primers were performed. MHT and CarbaNP tests were positive for all of imipenem-resistant K. pneumoniae. The blaOXA-48 gene was detected in 27/28 isolates. One isolate was positive for the presence of the blaVIM-4 gene. According to our results NP test and MHT have high sensitivity and specificity for detection of those carbapenemases. This study reports the first cases of OXA-48-producing K. pneumoniae in Iran.
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Affiliation(s)
- Leila Azimi
- Antimicrobial Resistance Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Abdolaziz Rastegar Lari
- Antimicrobial Resistance Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Microbiology, Iran University of Medical Sciences, Tehran, Iran
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Lim S, Lee S, Han J, Park BW, Kim S, Park S, Kim JH, Choi HJ, Sohn J. Prolonged clinical benefit from the maintenance hormone therapy in patients with metastatic breast cancer. Breast 2013; 22:1205-9. [PMID: 24135766 DOI: 10.1016/j.breast.2013.08.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/18/2013] [Accepted: 08/30/2013] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE We investigated the efficacy of maintenance hormone therapy (MHT), which was given to hormone positive metastatic breast cancer (MBC) patients in non-progression status to the previous chemotherapy. METHODS This study retrospectively analyzed 76 MBC patients who had been treated with MHT from 2006 to 2010 at a single institute. RESULTS For the 76 patients reviewed, the median progression free survival (PFS) to MHT was 14.4 months (95% CI, 11.6-17.3). Prolonged PFS was associated with less previous palliative chemotherapy, fewer metastatic sites, and the absence of visceral metastasis in univariate analysis. Multivariate analysis showed that only the number of previous palliative chemotherapy (HR 1.73, 95% CI, 1.00-2.98; P = 0.04) remained as a significant variable. MHT was generally well tolerated. CONCLUSIONS MHT showed considerable efficacy and tolerability in this study. Further randomized prospective study is warranted.
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Affiliation(s)
- Seungtaek Lim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Morales L, Alvarez-Garriga C, Matta J, Ortiz C, Vergne Y, Vargas W, Acosta H, Ramírez J, Perez-Mayoral J, Bayona M. Factors associated with breast cancer in Puerto Rican women. J Epidemiol Glob Health 2013; 3:205-15. [PMID: 24206792 PMCID: PMC3872970 DOI: 10.1016/j.jegh.2013.08.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 07/12/2013] [Accepted: 08/20/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common cancer afflicting Puerto Rican women and accounts for more cancer-related deaths in this population than any other cancer. METHODS Demographic, anthropometric, family history, and lifestyle data, as well as DNA repair capacity (DRC), were compared in 465 BC cases and 661 controls. Crude and multiple logistic regression-derived adjusted odds ratios were used as indicators of the associations between BC and the variables under study. RESULTS A low DRC level, aging (>61years), family history of BC, and low education level had statistically significant associations with increased BC risk. Endometriosis, full-term pregnancy at an earlier age, higher parity, hysterectomy before age 50, multivitamin and calcium intake, and longer duration of breastfeeding significantly decreased BC risk. CONCLUSIONS This study discusses the major risk factors for BC in Puerto Rico (PR). Because many of these findings represent modifiable risk factors, they can translate into public health initiatives to lower BC risk. In addition, the possibility of using DRC as a simple screening tool for BC risk is explored.
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Affiliation(s)
- Luisa Morales
- Department of Physiology and Pharmacology, Ponce School of Medicine and Health Sciences, P.O. Box 7004-388, Ponce 00732-7004, Puerto Rico; Public Health Program, Ponce School of Medicine and Health Sciences, P.O. Box 7004-388, Ponce 00732-7004, Puerto Rico.
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Khalil RA. Estrogen, vascular estrogen receptor and hormone therapy in postmenopausal vascular disease. Biochem Pharmacol 2013; 86:1627-42. [PMID: 24099797 DOI: 10.1016/j.bcp.2013.09.024] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/25/2013] [Accepted: 09/25/2013] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) is less common in premenopausal women than men of the same age or postmenopausal women, suggesting vascular benefits of estrogen. Estrogen activates estrogen receptors ERα, ERβ and GPR30 in endothelium and vascular smooth muscle (VSM), which trigger downstream signaling pathways and lead to genomic and non-genomic vascular effects such as vasodilation, decreased VSM contraction and growth and reduced vascular remodeling. However, randomized clinical trials (RCTs), such as the Women's Health Initiative (WHI) and Heart and Estrogen/progestin Replacement Study (HERS), have shown little vascular benefits and even adverse events with menopausal hormone therapy (MHT), likely due to factors related to the MHT used, ER profile, and RCT design. Some MHT forms, dose, combinations or route of administration may have inadequate vascular effects. Age-related changes in ER amount, distribution, integrity and post-ER signaling could alter the vascular response to MHT. The subject's age, preexisting CVD, and hormone environment could also reduce the effects of MHT. Further evaluation of natural and synthetic estrogens, phytoestrogens, and selective estrogen-receptor modulators (SERMs), and the design of appropriate MHT combinations, dose, route and 'timing' could improve the effectiveness of conventional MHT and provide alternative therapies in the peri-menopausal period. Targeting ER using specific ER agonists, localized MHT delivery, and activation of specific post-ER signaling pathways could counter age-related changes in ER. Examination of the hormone environment and conditions associated with hormone imbalance such as polycystic ovary syndrome may reveal the causes of abnormal hormone-receptor interactions. Consideration of these factors in new RCTs such as the Kronos Early Estrogen Prevention Study (KEEPS) could enhance the vascular benefits of estrogen in postmenopausal CVD.
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Affiliation(s)
- Raouf A Khalil
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA.
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Abstract
The Women's Health Initiative (WHI) hormone trials are among the most influential and debated research studies in women's health in recent medical history. This year (2013) marked the 10th anniversary of the publication of the WHI results and this past decade has been nothing less than revolutionary. We have witnessed a transformative evolution in our understanding of, and in the practice of, menopause management and herein summarize the strides the field has traversed over the past 10 years.
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Affiliation(s)
- Sanaz Ghazal
- Yale University School of Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, 333 Cedar Street, New Haven, CT 06477, United States
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Grochans E, Grzywacz A, Jurczak A, Samochowiec A, Karakiewicz B, Brodowska A, Starczewski A, Samochowiec J. The 5HTT and MAO-A polymorphisms associate with depressive mood and climacteric symptoms in postmenopausal women. Prog Neuropsychopharmacol Biol Psychiatry 2013; 45:125-30. [PMID: 23707423 DOI: 10.1016/j.pnpbp.2013.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 05/15/2013] [Accepted: 05/15/2013] [Indexed: 11/21/2022]
Abstract
OBJECTIVE The aim of this study was to assess the influence of the 44-bp polymorphism in the 5HTTLPR (SLC 6A4) (serotonin-transporter-linked polymorphic region, solute carrier family 6 member 4) promoter region and the 30-bpVNTR (variable number of tandem repeats) polymorphism in the MAO-A (monoamine oxidase A) promoter region on the prevalence of depressive mood and the severity of climacteric symptoms in postmenopausal women. MATERIAL AND METHODS The study involved 630 women from northern Poland who had their last menstrual period at least one year before the study. The women did not abuse alcohol or cigarettes, had not been diagnosed as having endocrinological, cancerous or mental diseases, and had not received psychiatric treatment by the time. This survey-based study was performed using the following research instruments: the Beck Depression Inventory (BDI), to evaluate depressive symptoms, and the Blatt-Kupperman Menopausal Index, to measure the severity of climacteric symptoms. RESULTS The average age of the women was 57.5 ± 6.4 years. Depressive symptoms of different severity according to the BDI were diagnosed in 29.2% of the women (minor-18.6%, moderate-7.1%, severe-3.5%) and according to the Blatt-Kupperman Menopausal Index were diagnosed in 42% of the women (minor-24.1%, moderate-9.2%, severe-8.7%). Allele 'l' was significantly more common in the women without climacteric symptoms than those with minor, moderate or severe climacteric complaints (p ≤ 0.05). There was a significant correlation between the severity of climacteric and depressive symptoms (p ≤ 0.05). The women who had severe climacteric symptoms also had more severe depressive symptoms. CONCLUSIONS 1. The 5HTTLPR gene polymorphism contributes to climacteric symptoms in postmenopausal women. 2. The Blatt-Kupperman Menopausal Index is an instrument which can not only be used for the measurement of the severity of climacteric symptoms but also the early detection of perimenopausal women at the risk of developing depressive symptoms.
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