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26,740 blood donors and persons of high risk groups with respect to HBV infection, residing in different regions of Belarus, were examined for the presence of HBsAg in 1983-1997. Of these, 1372 persons (5.1%) were found to have HBsAg, and out of 1081 HBsAg-positive persons anti-HDV antibodies (Ab) were detected in 96 persons (8.9%). In spite of a decrease in acute virus hepatitis B morbidity and in HBsAg carriership, the occurrence of anti-HBV Ab remained stable during the period of 16 years and was equal, on the average, about 4% among asymptomatic HBsAg carriers. Patients having tuberculosis, rheumatoid arthritis, diabetes mellitus, hematological diseases, chronic hepatitides and cirrhosis of the liver were an important reservoir of HBV and HDV infections for regions with the low level of the spread of HBV. A decrease in the detection rate of anti-HDV Ab in patients with cirrhosis of the liver from 47.6% to 15.4% was noted. In 1991-1997 a decrease in the detection rate of anti-HDV Ab in patients with chronic hepatic lesions in comparison with 1983-1990 was observed, and in the age group older than 50 years this decrease was from 33.3% to 8.3%. This difference was particularly pronounces in patients with cirrhosis of the liver: 53.9% and 7.7% respectively.
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PMID:[Viral hepatitis delta in the republic of Belarus]. 994 9

The health background, management and outcomes of 25 pregnancies in 18 women with transfusion dependent beta thalassaemia are described with particular consideration of appropriate preconceptual guidance for such women. This is an observation study of women attending three collaborating London hospitals. Nine of the pregnancies required induction of ovulation. Two pregnancies were complicated by diabetes and three by hepatitis C. One patient was hepatitis B positive. Two pregnancies were in women with cardiac problems, one of whom died of cardiac failure nine months after delivery of a live child. Two of the pregnancies miscarried and three were terminated, with the others resulting in 21 live children (including one set of twins). 14 of the pregnancies were delivered by caesarean section. After pregnancy five women developed secondary amenorrhoea, two developed cardiac problems and two developed diabetes.
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PMID:Pregnancy management and outcomes in women with thalassaemia major. 1009 Nov 66

Many different circumstances influence Asian and Latino immigration to the United States, including poverty, war, educational opportunities, and protection of financial assets. Such varying circumstances point clearly to a different set of expected health problems. Immigrants often lack resources necessary to acquire quality health care. These resources involve language skills, knowledge of US health care and social services, and insurance. Risk factors to which immigrants may have been exposed include poor nutrition, lack of immunizations and vaccinations, inadequate or inappropriate treatment, and inadequate or inaccurate beliefs about illness and treatment. Frequent health problems among Latino and Asian immigrants are tuberculosis, hepatitis B, sexually transmitted diseases, cancer, diabetes, and substance abuse. The nursing care of immigrants involves not only attention to reducing risk and treating illness, but also attention to the provision of resources. Nurses face several ethical dilemmas in the health care of immigrants including a public anti-immigrant sentiment, and political attempts to limit health care and education to immigrants.
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PMID:Health problems of Asian and Latino immigrants. 1031 29

The clinical outcome of long-term renal allograft recipients in the Chinese population has not been reported previously. We analysed patients from the pre-cyclosporin era who had grafts that functioned for > 10 years. Forty-five patients (31 men, 14 women; mean age 30, follow-up duration 13.3 years), representing a 10-year graft survival of 53%, were included. Thirty-six patients (80%) received living-related allografts and 9 (20%) received cadaveric or living-unrelated renal transplantation. The mean serum creatinine at last follow-up was 1.36 mg/dl (range, 0.83-4.08). Major posttransplantation complications included: hypertension in 25 (56%), infection in 16 (36%), acute rejection in 15 (33%), lipid disorder in 13 (29%), liver disease in 7 (16%), osteonecrosis in 5 (11%), malignancy in 4 (9%), coronary artery disease in 3 (7%), and diabetes mellitus in 3 (7%). Five grafts were lost: 3 to chronic rejection, and 2 to patients with stable function who died of non-renal causes. Proteinuria correlated strongly with graft function and survival, and marginally with hypertension. In hepatitis B carriers, serum alpha-feto protein is useful in the early detection of hepatocellular carcinoma. We conclude that while patients in the pre-cyclosporin era can survive with excellent graft function beyond the first decade, the risk of complications leading to significant morbidity still remains even when patients are receiving minimal doses of immunosuppression in the second decade.
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PMID:Long-term renal allograft recipients from South-east Asia in the pre-cyclosporin era. 1035 40

The TT virus (TTV) is a recently discovered DNA virus which was first identified in patients with non-A to -G hepatitis following blood transfusion. In this study, we tested 150 attendees of two hemodialysis (HD) units of the public hospitals of Marseilles, France, for the presence of TTV genome by using a PCR-based methodology. The overall prevalence of TTV viremia was 28% (compared to 5.3% in blood donors from the same region). We demonstrated the existence of chronic infections and superinfections by strains belonging to different genotypes. The prevalence of infection was higher in patients originating from Africa, in patients with previous blood transfusion or organ transplantation, in patients with antibody to hepatitis B core antigen, and in those with diabetes mellitus. A high prevalence of TTV infection (50%) was also observed in a population of patients with diabetes mellitus but without renal disease. No significant relationship was found between TTV viremia and hepatitis C virus or GB virus C, transaminases, age, sex, and duration of HD treatment. The PCR amplification products (located in open reading frame 1 of the TTV genome) were sequenced. These genomic sequences were submitted to phylogenetic analysis by using the Jukes-Cantor algorithm for distance determination and the neighbor-joining method for tree building. In several instances, sequences from viruses isolated in a HD unit were grouped in the same phylogenetic cluster. These results together with the different distribution of cases in the two HD units suggest there is viral transmission within each.
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PMID:TT virus infection in French hemodialysis patients: study of prevalence and risk factors. 1040 97

Non-insulin-dependent diabetes mellitus (NIDDM) may be associated with chronic hepatitis C virus (HCV) infection. This was studied further in two parts. First, 1,151 patients with HCV-related cirrhosis and 181 patients with hepatitis B virus (HBV)-related cirrhosis, well matched for age, sex, and severity of cirrhosis, were reviewed retrospectively. The prevalence of diabetes mellitus was higher in HCV-related cirrhosis (23.6%) than in HBV-related cirrhosis (9.4%; odds ratio [OR], 2.78; 95% confidence interval [CI], 1.6-4.79; P =.0002). The prevalence of diabetes mellitus was associated closely with the Child-Pugh score (OR, 3.83; 95% CI, 2. 38-6.17; P <.0001) and increasing age (OR, 1.02; 95% CI, 1.00-1.03; P =.0117). Second, 235 patients with biopsy confirmed chronic HBV or HCV underwent an oral glucose tolerance test. Only 1 of 70 patients with chronic viral hepatitis without cirrhosis was diabetic. However, 31 of 127 patients with HCV-related cirrhosis (24.4%) were diabetic compared with 3 of 38 patients with HBV-related cirrhosis (7.9%, P =.0477). The major variables associated with NIDDM were cirrhosis (OR, 14.39; 95% CI, 1.91-108; P =.0096) and male sex (OR, 4.64; 95% CI, 1. 32-16.18; P =.0161). Fasting insulin levels in 30 patients with HCV-related cirrhosis and diabetes mellitus were elevated significantly, which was consistent with insulin resistance. However, acute insulin responsiveness was reduced in all patients with HCV infection and diabetes suggesting concomitant B-cell dysfunction. This study confirms an association between HCV and NIDDM.
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PMID:Further evidence for an association between non-insulin-dependent diabetes mellitus and chronic hepatitis C virus infection. 1049 60

These analyses of the UNOS Scientific Renal Transplant Registry data from 1994-1997 showed: 1. There was no significant difference in graft survival between en-bloc and solitary transplants from donors aged 3-4. 2. Double renal allografts should be considered as an alternative to discarding both kidneys when donors are regarded as unsuitable for single kidney transplantation. 3. Prolonged donor HTN had a statistically significant deleterious effect in the multivariate analysis (RR 1.2, p = 0.05 for duration > 10 yrs). 4. A donor history of diabetes, cigarette smoking, or cancer failed to show any significant deleterious effects on graft survival in the multivariate analysis. 5. Matching donors and recipients for HCV genotype may minimize the risk of superinfection when using kidneys from HCV-positive donors (RR 1.4, p = 0.02 for the D+/R- mismatch). 6. Hepatitis B core antibody-positive donors did not pose a significant risk in the multivariate analysis. 7. A high proportion of donors were CMV positive and transplanting kidneys from CMV-positive donors resulted in a significantly but not substantially poorer graft outcome. The highest risk (RR 1.2, p = 0.003) was observed in transplants to CMV-negative recipients. 8. Kidneys from NHBDs who died of trauma survived as well as those from conventional brain-dead donors. NHBDs promise to be an important source for expanding the cadaver donor pool.
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PMID:Expanded criteria donors. 1050 20

The prevalence of hepatitis G virus (HGV) in liver disease of non-A, -B, -C viral hepatitis, hepatitis B and hepatitis C was determined. Two of 44 patients (4.5%) with liver injury without any hepatitis A, B or C marker were positive for HGV. One of five cases of hepatocellular carcinoma was positive for HGV. One of three cases with fulminant hepatitis was positive for HGV. This case was negative at the onset of fulminant hepatitis and became positive after plasmapheresis. No patient with acute (n=8) or chronic (n=5) hepatitis or liver cirrhosis (n=8) was positive for HGV in non-A, -B, -C liver disease. One of 30 patients with various HBV-positive liver diseases and nine (17.3) of 52 patients with type C liver disease were positive for HGV. In patients with hepatitis C, four (28.6%) of 14 HGV-co-infected patients were complicated with diabetes mellitus compared with four (10.5%) of 38 single hepatitis C virus (HCV)-infected patients (not significant). In 12 HGV-positive patients, eight of 10 (80%) had a history of blood transfusion. In HCV-positive patients, co-infection with HGV was not a risk factor in patients with diabetes mellitus as a complication. HGV appeared to cause non-A, -B, -C hepatitis rarely, and its main route of infection was blood transfusion.
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PMID:Prevalence of hepatitis G virus in liver disease. 1062 23

Vast changes are taking place in vaccinology consequent to the introduction of new technologies. Amongst the vaccines included in the Expanded Programme of Immunization (EPI), the pertussis vaccine has been replaced by acellular purified fractions devoid of side-effects. Non-pathogenic but immunogenic mutants of tetanus and diptheria toxins are likely to replace the toxoids. An effective vaccine against hepatitis B prepared by recombinant technology is in large-scale use. Conjugated vaccines against Haemophilus influenzae b, S. pneumococcus and meningococcus are now available, as also vaccines against mumps, rubella and measles. Combination vaccines have been devised to limit the number of injections. Vaccine delivery systems have been developed to deliver multiple doses of the vaccine at a single contact point. A genetically-engineered oral vaccine for typhoid imparts better and longer duration of immunity. Oral vaccines for cholera and other enteric infections are under clinical trials. The nose as a route for immunization is showing promise for mucosal immunity and for anti-inflammatory experimental vaccines against multiple sclerosis and insulin-dependent diabetes mellitus. The range of vaccines has expanded to include pathogens resident in the body such as Helicobacter pylori (duodenal ulcer), S. mutans (dental caries), and human papilloma virus (carcinoma of the cervix). An important progress is the recognition that DNA alone can constitute the vaccines, inducing both humoral and cell-mediated immune responses. A large number of DNA vaccines have been made and shown interesting results in experimental animals. Live recombinant vaccines against rabies and rinderpest have proven to be highly effective for controlling these infections in the field, and those for AIDS are under clinical trial. Potent adjuvants have added to the efficacy of the vaccines. New technologies have emerged to 'humanize' mouse monoclonals by genetic engineering and express these efficiently in plants. These recombinant antibodies are opening out an era of highly specific and safe therapeutic interventions. Human recombinant antibodies would be invaluable for treating patients with terminal tetanus and rabies. Antibodies are already in use for treatment of cancer, rheumatoid arthritis and allergies. An advantage of preformed antibodies directed at a defined target and given in adequate amounts is the certainty of efficacy in every recipient, in contrast to vaccines, where the quality and quantum of immune response varies from individual to individual.
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PMID:The impact of new technologies on vaccines. 1073 30

There is a growing disparity between the demand for and the supply of kidneys for transplantation. The demographics of the donor pool are also changing. The average potential cadaveric organ donor is now more likely to be older, at greater risk for co-morbid conditions such as hypertension or viral infections, and more likely to die from cerebrovascular disease. These factors have led to an expansion of the criteria that defines the suitable organ donor. Expanded criteria donors are defined as the following: (1) at the upper and lower extremes in age; (2) having a history of hypertension or diabetes; (3) hemodynamically unstable; (4) non-heartbeating (cardiopulmonary death rather than brain death); (5) seropositive for hepatitis B or C; (6) having systemic infections; (7) having displayed high-risk social behavior for HIV infection; (8) having a history of malignancy; (9) having abnormal organ function; or (10) with renal anatomic anomalies or injuries. Use of kidneys from these "expanded criteria donors" is a two-edged sword. While they provide more organs for transplantation, the risk of suboptimal recipient outcome is increased. A rational approach to the use of each of these types of kidneys and proper selection of recipients is essential to obtain acceptable results. The article reviews the factors that have contributed to the successful transplantation of kidneys procured from expanded criteria organ donors and how these organs can be allocated most efficaciously to the appropriate recipients.
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PMID:Expanded criteria donors: attempts to increase the renal transplant donor pool. 1078 30


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