Israel Medical Association Journal

Background: Matrix metalloproteinases are proteolytic enzymes that degrade extracellular matrix components. Numerous studies have demonstrated that individual MMPs[1] play a crucial role in tumor invasion and metastasis.

Objective: To examine the expression of MMPs and their inhibitor TIMP-2 in neoplastic and normal thyroid tissues.

Methods: We examined 33 cases of thyroid tumor (papillary, follicular and medullary carcinoma, follicular adenoma and multinodular goiter). MMP protein content and activity were measured by enzyme-linked immunosorbent assay and gel zymography. Immunohistochemistry was also performed.

Results: The thyroid tissues examined secreted MMP-2 and 9 as well as TIMP-2, but only MMP-2 was significantly higher in papillary carcinoma cases compared to the adjacent normal tissue or to the other tumor entities. Increased MMP-2 immunohistochemical staining was demonstrated in the neoplastic papillary epithelial component. No significant difference was seen between papillary carcinomas with lymph node metastases and those without.

Conclusions: Increased MMP-2 expression may be useful as a diagnostic marker to differentiate papillary carcinoma from other thyroid neoplasms, but it cannot serve as a useful prognostic marker.

Background: Factors influencing the oral flora of premature infants have not been adequately investigated.

Objective: To investigate the effects of gestational age and of anti-bacterial therapy on the oral flora of premature infants.

Methods: Oral cultures were obtained at age 1 day and age 10 days from 65 premature infants, divided into three groups: a) 24 neonates of 30-34 weeks gestation who did not receive ABT, b) 23 neonates of 30-34 weeks gestation who received ABT, and c) 18 neonates < 30 weeks gestation who received ABT.

Results: Oral bacterial colonization increased from day 1 to day 10 of life. In 24-34 week neonates, gestational age did not affect early bacteremia or oral colonization at birth. Neither gestational age nor ABT affected late bacteremia or oral colonization at day 10. In 30-34 week neonates with ABT, the oral flora consisted mainly of non-Escherichia coli gram-negative bacteria, whereas those who did not receive ABT grew mainly alpha-hemolytic streptococci, Klebsiella pneumoniae and E. coli in neonates < 30 weeks who received ABT the oral flora were mainly coagulase-negative staphylococci. Oral colonization with anearobes was zero and colonization with fungi was minimal.

Conclusions: Acquistion of oral bacteria rose from day 1 to day 10 of life, regardless of gestational life or ABT. On day 10 of life, the spectrum of oral bacterial flora changed following ABT and consisted mainly of coagulase-negative Staphylococcus and non E. coli garm-negative bacteria. Oral colonization showed few fungi but no anaerobes. These microbiologic observations merit attention when empirical anti-microbial therapy is considered in premature infants suspected or having late-onset sepsis.

Background: Familial Mediterranean fever is an autosomal recessive disease characterized by sporadic attacks of inflammation affecting the serosal spaces. The gene associated with FMF[1] (MEFV), mainly expressed in neutrophils, was recently found to be expressed also in primary cultures of serosal origin (peritoneal and synovial fibroblasts). A C5a inhibitor, previously detected in normal serosal fluids, was recently identified in serosal cultures as well, and was found to be deficient in serosal fluids and cultures obtained from FMF patients.

Objective: To investigate the effect of colchicine (the main therapeutic agent for FMF patients) and certain inflammatory cytokines (IL-1b, TNF-a, IFN-a, IFN-g) on MEFV expression and C5a inhibitor activity in neutrophils and primary peritoneal fibroblast cultures.

Methods: Human primary peritoneal fibroblast cultures and neutrophils were studied for MEFV expression and C5a inhibitor activity, using reverse transcription-polymerase chain reaction and C5a-induced myeloperoxidase assay, respectively, in the presence and absence of colchicine and cytokines.

Results: MEFV expression in neutrophils was high and could not be induced further. Its expression in the peritoneal fibroblasts was lower than in neutrophils and could be induced using colchicine and cytokines parallel with induction of C5a inhibitor activity. Semi-quantitative RT-PCR[2] assays enabled estimation of MEFV induction by the cytokines at 10–100-fold and could not be further increased by concomitant addition of colchicine.

Conclusion: Serosal tissues, which are afflicted in FMF, express colchicine and cytokine-inducible MEFV and contain inducible C5a inhibitor activity. The relation between colchicine ability to induce MEFV and C5a inhibitor activity, and its efficacy in FMF treatment, require further investigation.

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[1] RT-PCR = reverse transcription-polymerase chain reaction

[2] FMF = familial Mediterranean fever

Background: Alternative medicine use is increasing worldwide and the associated expenditures are significant. In Israel 19% of patients who consulted their family physician had also sought treatment by an alternative medicine practitioner.

Objectives: To explore the correlation between different modalities of healthcare utilization, health behavior, and health belief among adult members of a kibbutz. This unique study population enabled the use of a simplified quantitative model due to the minimal individual differences in cost and access.

Methods: Healthcare utilization data were obtained for 220 kibbutz members aged 15–70 years from patient medical files and self-administered questionnaires over a 45 month period. Patient visits to the family practitioner and other specialist physicians were tallied, and individuals reported alternative medicine consultations during the previous year. Multiple regression analysis was used to control for age, chronic disease, and other background characteristics.

Results: The mean number of patient FP visits was 3.6 per patient per year. Women and chronic disease sufferers visited the doctor more frequently. A patient’s number of FP visits and other specialist physician visits were closely correlated, with each specialist physician consult resulting in an additional 0.64 FP visit for a given individual (P=0.007). Our analysis indicated that self-reported alternative therapy utilization was positively associated with the number of FP visits; patients reporting alternative therapy use visited their primary care physician once additionally per year (P=0.03). Low self-rated health status was correlated with increased likelihood of alternative therapy use (borderline significance).

Conclusion: These results suggest that a patient who seeks treatment from one type of healthcare practitioner will seek out other practitioners as well. This study supports the notion that unconventional therapies are used in conjunction with, rather than instead of, mainstream medical care.

Background: Patients’ consent to being part of medical education is often taken for granted, both in primary and secondary care. Formal consent procedures are not used routinely during teaching and patients are not always aware of teaching activities.

Objective: To investigate patients’ attitudes and expectations on issues of consent regarding participation in teaching in general practice, and the influence of a student’s presence on the consultation.

Methods: The study took place in 46 teaching practices during the sixth year clinical internship in family medicine. Patients completed questionnaires at the end of 10 consecutive eligible consultations. The questionnaire contained data on the willingness to participate in teaching, the preferred consent procedure and the effects of the student’s presence. The doctors were asked to estimate the sociodemographic level in their clinic area.

Results: A total of 375 questionnaires were returned; the response rate was not affected by the clinic’s sociodemographic level. Overall, 67% of the patients had come into contact with students in the past; 3.2% of the participants objected to the presence of a student during the consultation; 15% would insist on advance notification of the presence of a student, and another 13.9% would request it; 4% stated that the presence of students had a detrimental influence on the physical examination and history; and 33.6% would refuse to be examined by a student without the doctor’s presence.

Conclusion: Most patients agreed to have a student present during the consultation; some would like prior notification; a minority refused the student’s presence. A large minority would refuse to be examined without the tutor’s presence. Our findings need to be taken into account when planning clinical clerkships.

Background: Migration leads to changes in almost all areas of life including health. But how far are health beliefs also preserved, and how far are they affected by the process of acculturation to the host society?

Objectives: To examine the difference between behavior and attitudes towards conventional and traditional medicine among elderly Yemenite immigrants.

Methods: A community-based study was conducted in the Yemenite neighborhoods in the city of Rehovot. All inhabitants of Yemenite origin over the age of 70 were identified from the population register, excluding those who were institutionalized or demented. Social work students interviewed them at home. The questionnaire inquired after health problems in the preceding month. For each of these problems, the respondent was asked whether any mode of treatment had been employed – Yemenite folk remedies, conventional medical care, or other. Their attitudes towards Yemenite folk medicine and conventional medicine were recorded. Socioeconomic data included their current age, age at immigration, year of immigration, marital status, gender, religiosity, and education.

Results: A total of 326 elderly people were identified who fulfilled the selection criteria, of whom 304 (93%) agreed to be interviewed. Of these, 276 (91%) reported at least one health problem in the preceding month, providing 515 problems of which 349 (68%) were reported to a conventional medical doctor while 144 (28%) were treated by popular folk remedies. Fifty-nine problems (11.5%) were treated by specifically Yemenite traditional remedies, mostly by the respondents themselves (38/59) rather than by a traditional healer. Immigrants who arrived in Israel over the age of 30 years, as compared to respondents who immigrated at an earlier age and grew up in Israel, were more likely to use traditional Yemenite remedies (24.4% vs. 8.2%, P<0.005).

Conclusion: Aged Yemenite Jews in Israel prefer modern medicine. The earlier the immigrant arrived in Israel, the more positive the attitude towards modern medicine and the less use made of traditional Yemenite healing.

Background: The recent influx of Ethiopian immigrants to Israel has created challenges for healthcare workers. Qualitative research methods have proven to be of value in providing useful data in cross-cultural medical settings.

Objective: To learn about parents' perception of the health of their children among a group of Ethiopian immigrants in Israel.

Methods: Ethiopian parents of children under age 3 registered with a family medicine clinic in Jerusalem were invited to participate in two focus groups. Transcripts of the group discussions were analyzed to reveal themes relating to children's health.

Results: Analysis of the transcripts revealed five themes relating to the health of children in two domains: the intra-familial and the extra-familial. Specific themes that emerged in the intra-familial domain were: the role of traditional medicine, gender-specific roles in child care, and decision-making in seeking extra-familial medical help. Themes in the extra-familial domain were recognition of illness and the meaning of symptoms, and notions of prevention and resistance to illness. The collected data found application in the daily clinical work of the researchers and enriched understanding of their patients.

Conclusions: Ethiopian immigrants to Israel share special perceptions of their children’s health that differ from prevailing beliefs in Israel. Focus groups provide health workers with a wealth of data on these beliefs that will enable them to offer more culturally sensitive care.
 

Background: Bloodletting is practiced in Ethiopia. Physicians in Israel engaging in transcultural encounters with Ethiopian immigrants are generally unaware of these ethnomedical beliefs and practices.

Objective: To assess the past and present use of bloodletting among Ethiopian immigrants in Israel.

Methods: We interviewed a sample of 50 adult patients of Ethiopian origin about present and past use of bloodletting. A second consecutive sample of 10 adult patients of Ethiopian origin who often asked their doctors to perform blood tests were identified and interviewed. Data analysis was performed by "immersion-crystallization" analysis.

Results: More than half of the interviewed patients reported the use of bloodletting. Scars were commonly present on their upper extremities. A qualitative analysis identified the different reasons for the use of bloodletting, the technique used and its appreciated efficacy. We also found an unexpected cultural synergy between traditional bloodletting and western medical blood sampling.

Conclusions: Some Ethiopian immigrants continue to perform traditional bloodletting in their new country of residency, a practice that local physicians may not be aware of. Bloodletting-type scars on the upper extremities may be common in these patients. Patients may ask for blood sampling as a culturally accepted way to perform bloodletting (synergy).