Allicin stimulates lymphocytes and elicits an antitumor effect: a possible role of p21ras

Allicin, the main organic allyl sulfur component in garlic, exhibits immune-stimulatory and antitumor properties. Allicin stimulated [(3)H]thymidine incorporation in mouse splenocytes and enhanced cell-mediated cytotoxicity in human peripheral mononuclear cells. Multiple administration (i.p.) of allicin elicited a marked antitumor effect in mice inoculated with B-16 melanoma and MCA-105 fibrosarcoma. The immune-stimulatory and antitumor effects of allicin are characterized by a bell-shaped curve, i.e. allicin at high, supra-optimal concentrations is less effective or inhibitory. Allicin induced activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) in human peripheral mononuclear cells, and also in wild-type Jurkat T-cells. Allicin failed to activate ERK1/2 in Jurkat T cells that express p21(ras), in which Cys118 was replaced by Ser. These cells are not susceptible to redox-stress modification and activation. We postulate that the immune stimulatory effect of allicin is mediated by redox-sensitive signaling such as activation of p21(ras). It is suggested that the antitumor effect of allicin is related to its immune-stimulatory properties.     

Perceived feasibility of an occupation-based telerehabilitation intervention for older adults with chronic health conditions in Israel

AimsOur study explored the perceived feasibility of using a home-based telerehabilitation service for older adults with chronic health conditions in Israel.MethodThis mixed-methods study included two focus groups of registered occupational therapists (n = 10) working in rehabilitation wards in Israel. Participants completed an open-ended questionnaire and Likert scale items so that data could be gathered on their perspectives regarding using an in-home telerehabilitation service for older adults after discharge from rehabilitation units. Thematic analysis with an a priori coding approach was applied to the data.ResultsPerceived advantages included transfer to the natural environment and the overcoming of geographical distance. Caregiver support and patient motivation were recognized as enabling factors. Perceived barriers included lack of hands-on contact and the concern that safety could be impeded by technological challenges and the patients’ cognitive status.ConclusionsFindings from this study can potentially contribute to facilitating the implementation of a home-based telerehabilitation service as a practical alternative for elderly patients after discharge from rehabilitation units in Israel.     

General Anesthesia for Surgery Influences Melatonin and Cortisol Levels

The purpose of this study was to investigate the effect of general anesthesia and surgery on melatonin production, and to assess the relationship between melatonin secretion and cortisol levels. Twenty (9 males and 11 females) consecutive otherwise healthy patients aged 27 to 52 years were included in this study. The patients underwent laparoscopic cholecystectomy or laparoscopic hernioplasty. All patients had general anesthesia with the same anesthetic drugs. Serum cortisol levels were measured at several time periods. Urine collections for melatonin were performed from 18:00 to 7:00 the day prior to surgery, on the operation day, and on the first postoperative day. Baseline melatonin metabolites were measured the night prior to surgery, and the level was found to be 1979 ± 1.76 ng. The value decreased to 1802 ± 1.82 ng (NS) on the night of surgery, and it became a significantly higher, reaching 2981 ± 1.55 ng the night after surgery (p = .003). The baseline daytime cortisol level was significantly lower than the baseline night cortisol level (6.87 ± 1.51 μg/dl, 14.89 ± 1.66 micrograms/dl, respectively, p < 0.0001). Surgery induced a significant increase in both day and night cortisol levels. Daytime cortisol levels increased from 6.89 ± 1.51μg/dl to 16.90 ± 1.27μg/dl (p < 0.0001), whereas right levels increased from 14.89 ± 1.66 μg/dl to 29.20 ± 1.24 μg/dl (p <0.0001). The morning after surgery, cortisol levels decreased to 10.16 ± 1.40 μg/dl, lower than the value obtained on the day of surgery (p < 0.0001). As was true of melatonin, cortisol levels did not reach the pre operative level (p < 0.005). The finding of the current study is that melatonin and cortisol levels show an inverse correlation after surgery.     

Joint ESCMID,FEMS, IDSA,ISID and SSI position paper on the fair handling of career breaks among physicians and scientists when assessing eligibility for early-career awards

BackgroundThough women increasingly make up the majority of medical-school and other science graduates, they remain a minority in academic biomedical settings, where they are less likely to hold leadership positions or be awarded research funding. A major factor is the career breaks that women disproportionately take to see to familial duties. They experience a related, but overlooked, hurdle upon their return: they are often too old to be eligible for ‘early-career researcher’ grants and ‘career-development’ awards, which are stepping stones to leadership positions in many institutions and which determine the demographics of their hierarchies for decades to come. Though age limits are imposed to protect young applicants from more experienced seniors, they have an unintended side effect of excluding returning workers, still disproportionately women, from the running.MethodsIn this joint effort by the European Society of Clinical Microbiology and Infectious Diseases, the Federation of European Microbiological Societies, the Infectious Disease Society of America, the International Society for Infectious Diseases and the Swiss Society for Infectious Diseases, we invited all European Congress of Clinical Microbiology and Infectious Diseases-affiliated medical societies and funding bodies to participate in a survey on current ‘early-career’ application restrictions and measures taken to provide protections for career breaks.RecommendationsThe following simple consensus recommendations are geared to funding bodies, academic societies and other organizations for the fair handling of eligibility for early-career awards: 1. Apply a professional, not physiological, age limit to applicants. 2. State clearly in the award announcement that career breaks will be factored into applicants' evaluations such that: ? Time absent is time extended: for every full-time equivalent of career break taken, the same full-time equivalent will be extended to the professional age limit. ? Opportunity costs will also be taken into account: people who take career breaks risk additional opportunity costs, with work that they did before the career break often being forgotten or poorly documented, particularly in bibliometric accounting. Although there is no standardized metric to measure additional opportunity costs, organizations should (a) keep in mind their existence when judging applicants' submissions, and (b) note clearly in the award announcement that opportunity costs of career breaks are also taken into account. 3. State clearly that further considerations can be undertaken, using more individualized criteria that are specific to the applicant population and the award in question.The working group welcomes feedback so that these recommendations can be improved and updated as needed.