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Conduction system disease in cardiac amyloidosis. Trends Cardiovasc Med 2024; 34:250-253. [PMID: 36804858 DOI: 10.1016/j.tcm.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023]
Abstract
Cardiac amyloidosis (CA) has diverse and deleterious effects on the conductive system. Atrial fibrillation is by far the most common electrophysiological manifestation of CA and is associated with more mortality, morbidity, and hospitalizations. While AF increases the risk of thrombosis regardless of the CHA2DS2-VASc score, the risk of thromboembolism seems to be high even in CA patients without AF. AV Nodal disease is prevalent and may precede the diagnosis of CA. The incidence of ventricular arrhythmias remains disputed, and the role of implantable cardioverter defibrillator devices in CA patients is controversial. Newer therapies targeted against specific types of CA have been developed, but their effects on conductive system disease are not well studied.
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Routine postoperative laboratory tests are not required in patients undergoing elective total shoulder arthroplasty. Ann R Coll Surg Engl 2021; 103:757-761. [PMID: 34719952 DOI: 10.1308/rcsann.2020.7111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Routine blood tests following total shoulder arthroplasty (TSA) cost the British national health system over £65,000 in 2018 without definite evidence of their impact on patients' outcomes. This study aimed to ascertain whether routine laboratory tests are necessary after elective TSA. METHODS A retrospective review of electronic records was completed for 274 patients that underwent TSA in the past six years. In total, 216 patients were eligible for analysis. The primary outcome was intervention rate for abnormal postoperative blood tests. Secondary outcomes were hospital length of stay (LOS), and readmissions at 30 and 90 days. RESULTS In total, 193 patients underwent 216 TSAs; 72% were female, and the mean cohort age was 78 ± 7.2 years. Overall, 136 patients (63%) had an abnormal postoperative blood test, however; only 8 (3.7%) required intervention. The average postoperative drop in haemoglobin (Hb) was 19g/l. In four patients (1.8%) Hb levels dropped to < 80g/l; however, only two (0.9%) were symptomatic and received a red blood cell transfusion. Six patients (2.8%) developed acute kidney injury and did not require haemofiltration. The mean LOS was 3.2 ± 2.9 days. Five patients (2.3%) were readmitted within 30 days and six patients (2.8%) within 90 days. Univariate analysis only showed association between patients with abnormal creatinine and LOS (p < 0.05), and all of these patients had raised preoperative creatinine levels. CONCLUSIONS Routine postoperative blood tests are not required as they did not change the clinical outcome in this cohort or the readmission rate, causing unnecessary costs. It is recommended to request postoperative blood tests for patients with raised preoperative creatinine levels.
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Factors of loss to follow-up during tuberculosis treatment in a low-incidence region. Med Mal Infect 2019; 50:28-35. [PMID: 30890281 DOI: 10.1016/j.medmal.2019.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/03/2018] [Accepted: 02/22/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The proportion of successfully treated tuberculosis (TB) patients remains below the WHO target in France, because of a high proportion of loss to follow-up. We aimed to identify factors associated with loss to follow-up in northern France, a low-incidence area. METHODS Between 1997 and 2017, all consecutive patients diagnosed with TB at the Tourcoing Hospital, except those infected with multidrug-resistant or extensively drug-resistant strains, were included in a retrospective cohort study. A logistic regression analysis was performed to determine factors associated with loss to follow-up. RESULTS One hundred and ninety patients were included. Previous TB treatment was reported in 32 patients (17%), extrapulmonary TB in 107 (56%), and HIV infection in 44 (23%). The proportion of loss to follow-up was 15%. In multivariate analysis, the risk of loss to follow-up decreased in case of first TB treatment (OR 0.36; 95% CI: 0.14-0.92, P=0.03) and increased in non-HIV-infected patients (OR 7.67; 95% CI: 1.00-59.0, p=0.05). Support for compliance was more frequent in HIV-infected patients (23% vs. 7%, p=0.005). CONCLUSION The proportion of loss to follow-up was high. HIV infection was associated with a lower risk of loss to follow-up, likely to be due to more frequent support for compliance.
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Évaluation de la tolérance et des concentrations sériques du céfépime utilisé par voie sous-cutanée (SC) dans le cadre de la prise en charge d’infections ostéoarticulaires. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Facteurs prédictifs de perte de vue des cas de tuberculose maladie. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Potential of Raman Spectroscopy To Monitor Arsenic Toxicity on Bacteria: Insights toward Multiparametric Bioassays. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:12324-12332. [PMID: 26398864 DOI: 10.1021/acs.est.5b03013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the field of toxicological bioassays, the latest progress in Raman spectroscopy opens new research perspectives on a fast method of observing metabolic responses against toxic agents. This technique offers a multiparametric approach, providing an overview of the physiological changes that are caused by pollutants. However, physiological spectral fingerprints require complex chemometric methods for proper analysis. In this study, particular attention has been given to the elaboration of an "aberrant spectra" detection strategy to highlight the effects of arsenic on the bacteria Escherichia coli. This strategy significantly improved spectra classification, consistent with a dose-response effect of the four tested concentrations of the metal. Indeed, the correct classification score of the spectra increased from 88 to more than 99%. The exposure time effect has also been investigated. The fine analysis of Raman spectroscopy fingerprints enabled the design of different "spectral signatures", highlighting early and late effects of arsenic on bacteria. The observed variations are in agreement with the expected toxicity and encourage the use of Raman spectroscopy for toxic element detection.
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Computer-Guided Implant Surgery in Fresh Extraction Sockets and Immediate Loading of a Full Arch Restoration: A 2-Year Follow-Up Study of 14 Consecutively Treated Patients. Int J Dent 2015; 2015:824127. [PMID: 26064119 PMCID: PMC4443938 DOI: 10.1155/2015/824127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/27/2015] [Accepted: 04/27/2015] [Indexed: 12/03/2022] Open
Abstract
Statement of Problem. Low scientific evidence is identified in the literature for combining implant placement in fresh extraction sockets with immediate function. Moreover, the few studies available on immediate implants in postextraction sites supporting immediate full-arch rehabilitation clearly lack comprehensive protocols. Purpose. The purpose of this study is to report outcomes of a comprehensive protocol using CAD-CAM technology for surgical planning and fabrication of a surgical template and to demonstrate that immediate function can be easily performed with immediate implants in postextraction sites supporting full-arch rehabilitation. Material and Methods. 14 subjects were consecutively rehabilitated (13 maxillae and 1 mandible) with 99 implants supporting full-arch fixed prostheses followed between 6 and 24 months (mean of 16 months). Outcome measures were prosthesis and implant success, biologic and prosthetic complications, pain, oedema evaluation, and radiographic marginal bone levels at surgery and then at 6, 12, 18, and 24 months. Data were analyzed with descriptive statistics. Results. The overall cumulative implant survival rate at mean follow-up time of 16 months was 97.97%. The average marginal bone loss was 0,9 mm. Conclusions. Within the limitations of this study, the results validate this treatment modality for full-arch rehabilitations with predictable outcomes and high survival rate after 2 years.
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EHMTI-0398. Long term safety of the ATI neurostimulation system for the treatment of cluster headache. J Headache Pain 2014. [PMCID: PMC4181991 DOI: 10.1186/1129-2377-15-s1-i4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Raman spectroscopy applied to the horizontal methods ISO 6579:2002 to identify Salmonella spp. in the food industry. Anal Bioanal Chem 2014; 406:4899-910. [PMID: 24908409 DOI: 10.1007/s00216-014-7909-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/09/2014] [Accepted: 05/17/2014] [Indexed: 10/25/2022]
Abstract
Food safety is a major concern for suppliers in the food chain to ensure the safety of their products. The identification procedure requested by norms is tedious, and it often requires systematic controls and qualified staff to perform the necessary analyses. Raman spectroscopy offers new opportunities to rapidly and efficiently ascertain the presence of pathogens in samples. Nevertheless, this technique requires a standardized procedure to be applied in the industrial context. Our study shows that the variability between spectral fingerprints is related to the physiological state of the microbial species and the growth phase of the bacteria plays a crucial role in its identification by Raman spectroscopy. To improve the discrimination between closely related bacterial species, a procedure based on the selection of bacterial spectra in the exponential growth phase was proposed. Different ways to introduce Raman spectroscopy in the ISO 6579:2002 standards are also proposed from the entire process to a shorter protocol. In the latter case, the identification of bacterial colonies after the selective enrichment step was proposed with the advantages of this path in terms of simplicity and rapidity (analysis time is reduced up to 50 h from the 100 h required by the standard). The protocol validated using six food categories from industrial partners have presented a good correlation by confirmation with other laboratory classical methods. In the future, this procedure could be introduced to the control system of the food production chain with a reliable database for various microorganisms encountered in this field.
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A simple method of surface functionalisation for immuno-specific immobilisation of proteins. Anal Bioanal Chem 2010; 398:1249-55. [PMID: 20683585 DOI: 10.1007/s00216-010-4032-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 07/07/2010] [Accepted: 07/13/2010] [Indexed: 11/25/2022]
Abstract
We present a new and advanced methodology, developed for surface functionalisation of gold and to study immobilisation of an immuno-specific system of proteins. A combination of electrochemical quartz crystal microbalance and Raman spectroscopy techniques allowed a complete understanding of the system starting from surface functionalisation and progressing to the functional structure analysis of immobilised proteins. A simple electrochemical procedure was formulated to prepare sulphonyl chloride terminated gold surfaces that form a strong sulphonamide bond with the receptor protein staphylococcal protein A (SpA). On the SpA grafted surfaces, the immobilisation of a human IgG and consecutive binding of an immuno-specific anti-human IgG was observed. The surface functional groups form a strong interaction with SpA without disturbing its functional properties. The native functional structure of SpA and also the IgGs was found to be retained in their immobilised state.
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Traumatic occipital meningoencephalocele presenting with homonymous hemianopia in a professional driver. Brain Inj 2010; 24:914-7. [PMID: 20377343 DOI: 10.3109/02699051003709615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND This study presents the case of a 32-year-old male who is a chronic headache sufferer. He is a professional driver who presented with homonymous hemianopia secondary to a traumatic occipital meningoencephalocele. This is the first time such an association has been reported. CONCLUSIONS The complete lack of previous visual symptoms supports the belief of late development of the hemianopia. However, the chronicity and the nature of the patients' headaches could have justified further investigations in the past.
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Abstract
PURPOSE The purpose of this work was to assess the feasibility of bimanual phacoemulsification in hard cataracts of N3+ using WhiteStar technology of Soveriegn (Advanced Medical Optics, Santa Ana, CA, USA). SETTING Ain-Shams University Hospitals, Ophthalmology Department, Cairo, Egypt. DESIGN A randomized prospective noncomparative study. METHODS A randomized prospective study of 33 consecutive cases (N3+ or more) was conducted, phacoemulsification using a bimanual microincision technique using the Sovereign with WhiteStar technology phacoemulsification machine. One phaco mode was used in all eyes. The ultrasound power was set at 30-25% according to the hardness of the nuclei, duty cycle of 33%, flow rate of 20-28 cm3/min, and vacuum of 240 mmHg. Occlusion mode was on. Nine eyes received rollable intraocular lenses (IOL) of ThinOptx, whereas 24 eyes had been implanted with hydrophobic acrylic foldable IOL (Sensar OptiEdge SA40e of AMO) through a third incision. Study parameters were effective phacotime (EPT), presence of wound burn, degree of immediate postoperative iritis, amount of infusion solution used, and total operating time. RESULTS The mean EPT was 4.3 s with an average ultrasound used of 5.7%. The mean operating time was 11 min and 20 s. Although the nuclear hardness was of grade 3 or above (in a scale of 5), there were no cases of thermal burn; P=0.005. Only three eyes suffered postoperative iritis 2+, which resolved within 1 week on topical steroids, statistically nonsignificant, P=0.2. The amount of infusion solution was less than that used in conventional coaxial phaco. This technique induced considerably less corneal astigmatism than surgery using conventional corneal incisions. CONCLUSIONS Hard cataracts of N3 or more could be safely removed through an incision of 1.4 mm incision using bimanual micro-phaco.
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Abstract
The presence of infectious spondylodiskitis and its complications may present protean clinical and imaging findings. The frequent use of multi-imaging modalities has led to a greater sensitivity and specificity in the diagnosis of this ubiquitous disease.
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Abstract
Fast MR imaging protocols pave the way for more widespread use of MR imaging to evaluate emergency room trauma patients. This article reviews technical developments and protocols facilitating rapid imaging, conventional applications of MR imaging to evaluate soft tissue injuries, and newer applications in which MR imaging is used to image both axial and appendicular fractures.
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R-105. Intracytoplasmic sperm injection using totally immotile spermatozoa. Hum Reprod 1999. [DOI: 10.1093/humrep/14.suppl_3.326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Value of postoperative treatment after cutting of a broad base intrauterine septum. Int J Gynaecol Obstet 1999; 64:315-6. [PMID: 10366058 DOI: 10.1016/s0020-7292(98)00215-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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TRP, a protein essential for inositide-mediated Ca2+ influx is localized adjacent to the calcium stores in Drosophila photoreceptors. J Neurosci 1995; 15:3747-60. [PMID: 7751943 PMCID: PMC6578220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The Drosophila transient receptor potential (trp) gene product (TRP) shows some structural similarity to vertebrate voltage-gated Ca2+ channels. It appears to function as a novel Ca2+ channel responsible for light stimulated, inositol trisphosphate (InsP3)-mediated Ca2+ entry in the fly retina. The subcellular localization of TRP protein was determined in this study using immunohistochemical staining with anti-TRP antibody (MAb83F6). TRP was localized to the base of the microvilli in a region adjacent to the presumed InsP3-sensitive Ca2+ stores. This specific localization was supported by measuring the magnitude of a TRP-dependent inward current that results from spontaneous activation of the light-sensitive channels during whole-cell recordings (the rundown current, RDC). We found that reduction of the microvilli area through genetic dissection with the opsin null mutant, ninaEora, was correlated with a pronounced enhancement of the TRP-dependent inward current relative to wild type, suggesting that the TRP-dependent current was not produced along the length of the microvilli. We suggest that the functional localization of the TRP protein is on the plasma membrane loop found along the base of the rhabdomeric microvillus. Thus, the TRP channel may function in concert with the InsP3-sensitive Ca2+ stores.
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Low density lipoprotein cholesterol and whole blood viscosity. ANNALS OF CLINICAL AND LABORATORY SCIENCE 1994; 24:533-41. [PMID: 7847781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Whole blood viscosity (WBV) was measured in a normal population and was analyzed in relation to packed cell volume, (hematocrit, PCV), fibrinogen, white blood cell count (WBC), platelet count, and plasma lipids, including total cholesterol, triglycerides, high density lipoprotein cholesterol (HDLc) and low density lipoprotein cholesterol (LDLc). Conventional assays were used for all blood and lipid measurements. Whole blood viscosity was measured under disaggregating conditions with a disposable, porous bed viscometer. As expected, the strongest correlation was seen between WBV and PCV (r = 0.78, p < 0.001). Significant positive correlations also were demonstrated between WBV and cholesterol (r = 0.22, p < 0.001), triglycerides (r = 0.14, p < 0.001) and LDLc (r = 0.21, p < 0.001). A significant negative correlation was found between HDLc and WBV (r = -0.20, p < 0.001). Correlation analysis by sex showed only the correlation of LDLc was significant for both men and women. A stepwise multiple regression analysis of WBV indicated that LDLc, fibrinogen (Fbg) and platelet (Plt) counts correlated independently of PCV to WBV. The equation derived from multiple regression and partial correlation analysis was: WBV (mPa.sec) = -9.317 + 0.0047 (LDLc) + 0.381 (PCV) + 0.00152 (Plt) + 0.0021 (Fbg). The calculated mean specific contribution of PCV was 90.8 percent, LDLc 3.5 percent, and fibrinogen 3.3 percent to observed mean WBV. This study shows that LDLc is the principal lipoprotein independently influencing whole blood viscosity and its effect is similar in magnitude to fibrinogen. Further studies to elucidate the mechanism and clinical significance of the effects of LDLc on WBV are indicated.
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Abstract
OBJECTIVE To study the histopathological effects of silicone rubber on the human fallopian tube. METHODS A prospective longitudinal study at Benha University Hospital and Boulak Eldakrour General Hospital, Egypt. Nine patients who were on the waiting list for hysterectomy and requested postponing of their operation for personal reasons. RESULTS Our results suggest that silicone rubber induces histopathological changes in the form of ciliary loss and intracellular changes. CONCLUSIONS These effects tend to increase with the increase of the duration of tubal plugging and are best seen by electron microscopy.
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A community education monitoring system: methods from the Stanford Five-City Project, the Minnesota Heart Health Program and the Pawtucket Heart Health Program. HEALTH EDUCATION RESEARCH 1993; 8:81-95. [PMID: 11067188 DOI: 10.1093/her/8.1.81] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Understanding the process of behavior change interventions is critical to achieving campaign effectiveness and successful program replication. The present article presents a community education monitoring system (CEMS) using data from the Stanford Five-City Project (FCP), the Minnesota Heart Health Program (MHHP) and the Pawtucket Heart Health Program (PHHP). CEMS records the number and type of intervention activities, outcome objectives, targets of change (individual, organizational or environmental), channel(s) of dissemination and proportion of programs funded by the community. These data illustrate (1) the application of theory for each project, (2) data-based program administration, (3) feedback for revising programs and (4) type of reach or 'dose' information obtained from intervention monitoring. Process evaluations such as CEMS provide critical links between field realities and evaluation outcomes. This type of evaluation develops standards for measuring program reach and allows comparisons with other programs. CEMS also illustrates how programs enact theory. Validation studies are critical to the continued successful use of CEMS. The first step, however, is to develop a uniform way of describing complex multichannel behavior change programs. CEMS in a refined form should prove invaluable to health promotion program planners whether in research or service settings.
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Abstract
During a 70-month period, CO2 hysteroscopy was carried out on 52 pregnant women wearing IUDs with retracted tails. Ultrasonography was done prior to hysteroscopy to determine the size of the gestational sac and the site of the device. Successful removal of the device occurred in 46 cases. The technique, the findings of the study, and the limitations of the procedure are described.
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Corticosteroids in the management of adnexal hemangiomas in infancy and childhood. ANNALS OF OPHTHALMOLOGY 1992; 24:12-8. [PMID: 1543320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Adnexal hemangiomas are common in infancy and childhood. They can be interesting to the ophthalmologist for two reasons: cosmetic and functional (the second, the more important). By their natural history, they can produce serious visual consequences by producing refractive or stimulus-deprivation amblyopia. The management of adnexal hemangiomas is a challenge. The accepted method is most instances is corticosteroid therapy. This is administered either by local, intralesional, or systemic routes; the first is preferred. Steroid therapy can cause systemic and local side effects. Furthermore, a rebound effect can occur with this type of therapy. We present the cases of 12 patients with adnexal hemangiomas treated with steroids. These patients are reviewed, with emphasis on their responses and the complications of steroid therapy.
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Residents' corner. Answer to case of the month #7. Appearance of "reversal sign" in computed tomography scans as an indicator of changes in the brain caused by anoxia and ischemia. Can Assoc Radiol J 1991; 42:223-4. [PMID: 2054685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Abstract
During 20 months of study 29 patients in whom congenital uterine anomalies were previously diagnosed by hysterosalpingography, had a combined hysteroscopy/laparoscopy procedure. In 17 cases, an intrauterine septum was cut under vision using CO2 hysteroscopy and/or optical scissors. No electrocautery or vasoconstrictor agents were needed to minimize the possibility of bleeding as the septum is of fibrous nature. No estrogen therapy was given and no IUDs were inserted post operatively. A second look hysteroscopy done 2 months later showed no intrauterine adhesions. Laparoscopic monitoring during the hysteroscopic procedure allowed avoidance of uterine perforation, assessment of the condition of the tubes and the ovaries as well as differentiation between bicornuate and septate uterus.
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Hysteroscopic removal of copper-containing intrauterine devices with missing tails during pregnancy. ADVANCES IN CONTRACEPTION : THE OFFICIAL JOURNAL OF THE SOCIETY FOR THE ADVANCEMENT OF CONTRACEPTION 1988; 4:131-5. [PMID: 3213670 DOI: 10.1007/bf01849514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
During a 15-month period, CO2 hysteroscopy was carried out on 21 pregnant women wearing IUDs with retracted tails. Ultrasonography was done prior to hysteroscopy to determine the size of the gestational sac and the site of the device. Successful removal of the device occurred in 17 cases. The paper describes the technique, the findings of the study, and the limitations of the procedure.
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The Pawtucket Heart Health Program: I. An experiment in population-based disease prevention. RHODE ISLAND MEDICAL JOURNAL 1987; 70:533-8. [PMID: 3480549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Morphological study of the effects of an GnRH agonist on the canine testis after 4 months of treatment and recovery. ACTA ENDOCRINOLOGICA 1987; 116:413-7. [PMID: 3318261 DOI: 10.1530/acta.0.1160413] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
After 4 months of treatment of adult male dogs with the GnRH agonist (GnRH-A) [D-Trp6]GnRH ethylamide, the seminiferous tubules contained only type A and B spermatogonia, Sertoli cells, and rare primary spermatocytes, thus causing a 64% decrease in testis weight. At the electron microscope level, Sertoli cells showed an increase in phagosomes and lipid droplets. Leydig cells were markedly atrophied with the accumulation of lipid droplets and showed a predominance of mitochondria with lamellar instead of vesicular cristae. Four months after cessation of treatment with GnRH-A, a complete return to normal spermatogenesis and Leydig cell morphology was observed. The full reversibility of spermatogenesis in the dog after chronic GnRH-A treatment suggests that this well-tolerated peptide could be used as a reversible method of male contraception.
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Mass spectral identification of benzothiazole derivatives leached into injections by disposable syringes. BIOMEDICAL MASS SPECTROMETRY 1984; 11:450-4. [PMID: 6509153 DOI: 10.1002/bms.1200110903] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Five benzothiazole derivatives leached into injections by the rubber plunger-seals of disposable syringes were identified by electron impact (EI) and chemical ionization (CI) mass spectrometry. These are 2-hydroxybenzothiazole, 2-mercaptobenzothiazole, 2-(methylmercapto)benzothiazole, 2-(2-hydroxyethoxy)benzothiazole and 2-(2-hydroxyethylmercapto)benzothiazole. 2-Mercaptobenzothiazole is used as a vulcanization accelerator. The other four compounds are formed from the zinc derivative of 2-mercaptobenzothiazole during sterilization with ethylene oxide. Toxicological, technological and legal consequences of the leaching are discussed briefly.
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Inhibition of growth of primary and metastatic Lewis lung carcinoma cells by the phosphodiesterase inhibitor isobutylmethylxanthine. Cancer Res 1980; 40:1950-4. [PMID: 6154533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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