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1.
Cancer Causes Control ; 35(4): 727-737, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38123742

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.


Subject(s)
Stomach Neoplasms , Male , Humans , Female , Stomach Neoplasms/epidemiology , Stomach Neoplasms/etiology , Risk Factors , Premenopause , Incidence
2.
J Obstet Gynaecol ; 43(1): 2171779, 2023 Dec.
Article in English | MEDLINE | ID: mdl-36772932

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.


Subject(s)
Endometrial Neoplasms , Estrogen Replacement Therapy , Humans , Female , Estrogen Replacement Therapy/adverse effects , Estrogen Replacement Therapy/methods , East Asian People , Menopause , Surveys and Questionnaires , Hormone Replacement Therapy/adverse effects , Hormone Replacement Therapy/methods
3.
Medicina (Kaunas) ; 58(5)2022 Apr 28.
Article in English | MEDLINE | ID: mdl-35630033

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.


Subject(s)
Functional Laterality , Isoflavones , Attention , Brain , Female , Humans , Isoflavones/pharmacology , Isoflavones/therapeutic use , Menopause
4.
Clin Endocrinol (Oxf) ; 95(3): 390-397, 2021 09.
Article in English | MEDLINE | ID: mdl-33752259

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.


Subject(s)
Adenoma , Colorectal Neoplasms , Colorectal Neoplasms/prevention & control , Estrogen Replacement Therapy/adverse effects , Female , Hormone Replacement Therapy/adverse effects , Humans , Menopause , Risk
5.
Ann Clin Microbiol Antimicrob ; 20(1): 76, 2021 Nov 03.
Article in English | MEDLINE | ID: mdl-34732199

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.


Subject(s)
Anti-Bacterial Agents/pharmacology , Cross Infection/microbiology , Pseudomonas aeruginosa/drug effects , Pseudomonas aeruginosa/genetics , beta-Lactamases/genetics , Drug Resistance, Multiple, Bacterial , Ertapenem/pharmacology , Humans , Imipenem/pharmacology , Inpatients , Iran/epidemiology , Microbial Sensitivity Tests , Molecular Typing , Polymerase Chain Reaction , Pseudomonas aeruginosa/isolation & purification
6.
J Obstet Gynaecol Res ; 47(1): 208-215, 2021 Jan.
Article in English | MEDLINE | ID: mdl-33078538

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.


Subject(s)
Breast Neoplasms , Estrogen Replacement Therapy , Breast Neoplasms/epidemiology , Female , Humans , Menopause , Middle Aged , Retrospective Studies , Thailand
7.
Acta Endocrinol (Buchar) ; 17(1): 90-100, 2021.
Article in English | MEDLINE | ID: mdl-34539915

ABSTRACT

OBJECTIVES: The present paper aims to investigate the effects of both progesterone and progestin treatment mainly related to the occurrence of breast cancer in women. MATERIALS AND METHODS: Extensive systematic bibliographic review of Greek and International articles was conducted through the electronic databases Pubmed, Cinahl, Uptodate, and Google Scholar for the identification of articles related to progesterone, progestins and breast cancer treatment. RESULTS: Hormone therapy with the use of estrogen alone presents a small increased risk or does not present at all an increased risk of breast cancer. With ORs in some studies below 1.0 in current users for 3 plus years and safe option until 7 years, while in other studies the risk was increased with the ORs 1.29. However, the use of estrogen in combination with progestogens, depending on the type of progestogens, shows an increased risk of breast cancer, with the ORs to vary between 1.14- 2.38 from 3 to 5 years and is inversely proportional to the time of its use. This risk varies depending on the combination of the preparations. Other factors that are associated with breast cancer risk when receiving hormone therapy are the years that hormone therapy is taken, directly proportional to the risk. At higher risk are older women, women with low body mass index in menopause (BMI <25kg/m2) and women with increased mammographic breast density. Continued use of hormone therapy is associated with an increased risk for breast cancer compared to sequential. The risk became visible sooner to women who used in the past hormone therapy and were using it again. Starting hormone therapy in the immediate postmenopausal period also increased the risk for breast cancer. Hormone therapy was associated with tumors with positive estrogen and progesterone receptors, and also the lobular histological type was associated with its use. Tibolone use was associated with an increased risk.

8.
Nano Lett ; 19(6): 3618-3626, 2019 06 12.
Article in English | MEDLINE | ID: mdl-31074627

ABSTRACT

Two major technical challenges of magnetic hyperthermia are quantitative assessment of agent distribution during and following administration and achieving uniform heating of the tumor at the desired temperature without damaging the surrounding tissues. In this study, we developed a multimodal MRI/MPI theranostic agent with active biological targeting for improved magnetic hyperthermia therapy (MHT). First, by systematically elucidating the magnetic nanoparticle magnetic characteristics and the magnetic resonance imaging (MRI) and magnetic particle imaging (MPI) signal enhancement effects, which are based on the magnetic anisotropy, size, and type of nanoparticles, we found that 18 nm iron oxide NPs (IOs) could be used as superior nanocrystallines for high performance of MRI/MPI contrast agents in vitro. To improve the delivery uniformity, we then targeted tumors with the 18 nm IOs using a tumor targeting peptide, CREKA. Both MRI and MPI signals showed that the targeting agent improves the intratumoral delivery uniformity of nanoparticles in a 4T1 orthotopic mouse breast cancer model. Lastly, the in vivo antitumor MHT effect was evaluated, and the data showed that the improved targeting and delivery uniformity enables more effective magnetic hyperthermia cancer ablation than otherwise identical, nontargeting IOs. This preclinical study of image-guided MHT using cancer-targeting IOs and a novel MPI system paves the way for new MHT strategies.


Subject(s)
Ferric Compounds/therapeutic use , Magnetite Nanoparticles/therapeutic use , Neoplasms/diagnostic imaging , Neoplasms/therapy , Animals , Cell Line, Tumor , Ferric Compounds/analysis , Hyperthermia, Induced/methods , Magnetic Field Therapy/methods , Magnetic Resonance Imaging/methods , Magnetite Nanoparticles/analysis , Mice , Theranostic Nanomedicine/methods
9.
J Pak Med Assoc ; 70(12(B)): 2481-2483, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33475570

ABSTRACT

We propose the use of the term 'menopause distress,' and share a conceptual definition. Menopause distress is defined as an emotional response characterised by significant, persistent apprehension, discomfort or dejection, due to a perceived inability to cope with the biomedical and psychosocial demands and challenges of living with menopause. This review discusses menopause distress, its definition, etiology, clinical features, and management. It calls for differentiation of menopause distress from other psychiatric conditions such as major depressive disorders and anxiety neurosis.


Subject(s)
Depressive Disorder, Major , Adaptation, Psychological , Anxiety , Estrogen Replacement Therapy , Female , Humans , Menopause
10.
Epilepsy Behav ; 100(Pt A): 106496, 2019 11.
Article in English | MEDLINE | ID: mdl-31654940

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.


Subject(s)
Epilepsy, Temporal Lobe/surgery , Hippocampus/surgery , Memory Disorders/prevention & control , Neurosurgical Procedures/methods , Psychosurgery/methods , Hemispherectomy/adverse effects , Humans , Memory Disorders/etiology , Neurosurgical Procedures/adverse effects , Postoperative Complications/prevention & control , Psychosurgery/adverse effects , Seizures/surgery , Verbal Learning
11.
Climacteric ; 21(5): 454-461, 2018 10.
Article in English | MEDLINE | ID: mdl-29526116

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.


Subject(s)
Endometrial Hyperplasia/prevention & control , Hormone Replacement Therapy/trends , Menopause/drug effects , Venous Thromboembolism/prevention & control , Administration, Cutaneous , Administration, Oral , Endometrial Hyperplasia/chemically induced , Estrogens/administration & dosage , Female , Hormone Replacement Therapy/adverse effects , Humans , Intrauterine Devices, Medicated , Levonorgestrel/administration & dosage , Progesterone/administration & dosage , Progestins/administration & dosage , Venous Thromboembolism/chemically induced
12.
Neurosurg Focus ; 44(4): E5, 2018 04.
Article in English | MEDLINE | ID: mdl-29606046

ABSTRACT

Skull base meningiomas are technically challenging tumors to treat because of their deep vascular supply that can preclude early devascularization during resection. Preoperative embolization of these arterial feeders is thought to decrease blood loss and facilitate resection; however, given the complex and varied anatomy of these skull base lesions, preoperative embolization is not without risk. It is essential for both endovascular and skull base neurosurgeons to understand these risks in light of the potential benefits. The authors review the vascular anatomy of skull base meningiomas, indications for preoperative devascularization, endovascular techniques, and published results regarding embolization of these lesions.


Subject(s)
Embolization, Therapeutic , Meningeal Neoplasms/surgery , Meningioma/surgery , Skull Base Neoplasms/surgery , Embolization, Therapeutic/methods , Endovascular Procedures , Humans , Skull Base/surgery
13.
Sensors (Basel) ; 18(5)2018 May 08.
Article in English | MEDLINE | ID: mdl-29738520

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.

14.
Pharm Biol ; 56(1): 580-593, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30415587

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.


Subject(s)
Asthma/drug therapy , Asthma/metabolism , Drugs, Chinese Herbal/pharmacology , Toll-Like Receptor 9/metabolism , Animals , Asthma/chemically induced , Asthma/pathology , Disease Models, Animal , Drugs, Chinese Herbal/chemistry , Eosinophils/drug effects , Female , Immunohistochemistry , Lung/drug effects , Lung/metabolism , Lung/pathology , Mice , Mice, Inbred BALB C , Molecular Docking Simulation , Trachea/drug effects , Trachea/metabolism , Trachea/pathology
15.
Parasitology ; 144(12): 1633-1642, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28637527

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.


Subject(s)
Buffaloes , Cattle Diseases/transmission , Dog Diseases/transmission , Goat Diseases/transmission , Rodent Diseases/transmission , Schistosomiasis/veterinary , Animals , Cattle , Cattle Diseases/epidemiology , China/epidemiology , Dog Diseases/epidemiology , Dogs , Feces/parasitology , Goat Diseases/epidemiology , Goats , Polymerase Chain Reaction , Prevalence , Rodent Diseases/epidemiology , Rodentia , Schistosomiasis/epidemiology , Schistosomiasis/transmission
16.
Pak J Med Sci ; 31(6): 1340-3, 2015.
Article in English | MEDLINE | ID: mdl-26870093

ABSTRACT

OBJECTIVE: The New Delhi metallo-ß-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.

17.
Climacteric ; 17 Suppl 2: 12-7, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25032478

ABSTRACT

With an increasing world population of postmenopausal women, providers of health care need to focus on improving the quality of life as well as the longevity of women. This review emphasizes the importance of health care for postmenopausal women, particularly the role of menopausal hormonal therapy (MHT), from the perspective of where we have been, where we are now, and where we can expect to be in the future. Use of MHT increased dramatically in the 1980s and then fell very abruptly in the early 2000s with the publications of various randomized hormonal trials, including the Women's Health Initiative (WHI). The recent publications from the WHI with 13 years of follow-up are different from the initial reports and do not show an increase in cardiovascular risk in any age group (with the exception of venous thrombosis). Breast cancer risk increased marginally with estrogen/progestogen therapy, related to duration of use, but with estrogen-alone therapy, breast cancer risk decreased significantly, as did mortality. For younger women receiving estrogen alone, there is great consistency between all randomized trials, including the WHI and observational data showing a coronary benefit and a decrease in all-cause mortality. Recent data also confirm the 'timing hypothesis', suggesting that younger women benefit from MHT, while older women do not exhibit this effect. In the future, we will have many more genetic and molecular tools to guide therapy and risk assessment, as we move into an era of personalized medicine. An important opportunity presents at the onset of menopause to prevent diseases which usually occur some 10 years later. Part of this preventative strategy may involve MHT.


Subject(s)
Estrogen Replacement Therapy/trends , Estrogens/therapeutic use , Postmenopause/drug effects , Cardiovascular Diseases/prevention & control , Estrogen Replacement Therapy/history , Estrogens/history , Female , History, 20th Century , History, 21st Century , Humans , Middle Aged , Osteoporosis, Postmenopausal/prevention & control , Progestins/therapeutic use , Quality of Life , Risk Assessment , Women's Health
18.
J Obstet Gynaecol India ; 74(3): 196-200, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38974746

ABSTRACT

There is an interest in menopause that demands answers and solutions. Menopause affects each women differently and hence it is unique and needs to be talked about. This focus has led to improvement in women's health bringing about better outcome in physical and mental health. Increase in life expectancy has led to menopausal health care, an important issue. Menopause is not disease but causes symptoms that can differ individually. Occasionally, surgery, radiation, and medications can cause menopause. Menopause hormone therapy (MHT), nonhormonal therapy, and lifestyle modifications under supervision can improve menopausal outcome. It also gives window of opportunity to evaluate and reduce risk of cardiovascular, bone, and urogenital health. Menopausal women should be provided with all options that are suitable and feasible for improvement in their life.

19.
Front Glob Womens Health ; 5: 1397123, 2024.
Article in English | MEDLINE | ID: mdl-38832110

ABSTRACT

Hormone replacement therapy (HRT), also known as menopausal hormone therapy (MHT), was looked upon as a fountain of youth that kept women young and reduced cardiovascular disease. This led to a large-scale study called the Women's Health Initiative (WHI) that was conducted to show the cardiovascular benefits of HRT. This study was suspended early because of adverse side effects. The USFDA responded by slapping a "black box" warning on all HRT products. USFDA-approved bioidentical HRT formulations are safe and effective. We propose that these formulations have the "black box" warning removed so that doctors feel more confident in prescribing these products for symptoms of menopause and chronic conditions such as cardiovascular health. We propose eliminating the sale of products containing medroxyprogesterone acetate (MPA) because of the increased risk of heart attacks and breast cancers associated with this medication.

20.
Diabetes Ther ; 15(4): 741-748, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38363540

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 17ß-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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