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Kornelius E, Lo SC, Huang CN, Wang CC, Wang YH, Yang YS. Assessing herpes zoster vaccine efficacy in patients with diabetes: A community-based cohort study. J Med Virol 2024; 96:e29667. [PMID: 38738524 DOI: 10.1002/jmv.29667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/06/2024] [Accepted: 05/02/2024] [Indexed: 05/14/2024]
Abstract
The effectiveness of herpes zoster (HZ) vaccines in patients with diabetes over the age of 50 remains an active area of research. Utilizing a real-world database from the US community, this study spanning from 2006 to 2023, aimed to evaluate the impact of HZ vaccination on newly diagnosed diabetes patients who received an HZ vaccination within 1 year of diagnosis. Exclusion criteria were established to omit patients with immune deficiencies. The cohort consisted of 53 885 patients, with an average age of 63.5 years, including 43% females and 58% whites. After implementing 1:1 propensity score matching for age, sex, race, comorbidities, diabetes medication, and hemoglobin A1c to ensure comparability, the study population was further stratified into four groups: N1 comparing any HZ vaccination to non-HZ vaccination (53 882 matched pairs), N2 for Shingrix versus non-HZ vaccination (16 665 matched pairs), N3 for Zostavax versus non-HZ vaccination (12 058 matched pairs), and N4 for Shingrix versus Zostavax (11 721 matched pairs). Cox proportional hazards regression analysis revealed a hazard ratio (HR) for HZ incidence post any HZ vaccination of 0.92 (95% confidence interval [CI]: 0.83-1.01). Additional analyses yielded HRs of 1.12 (95% CI: 0.93-1.34) for Shingrix versus non-HZ vaccine, 1.02 (95% CI: 0.86-1.20) for Zostavax versus non-HZ vaccine, and 1.06 (95% CI: 0.87-1.29) for Shingrix versus Zostavax. Subgroup analyses across age, sex, and follow-up duration also showed no significant differences. These findings underscore the lack of a significant benefit from HZ vaccination in newly diagnosed diabetes patients aged over 50, highlighting the necessity for further prospective research.
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Affiliation(s)
- Edy Kornelius
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shih-Chang Lo
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chien-Ning Huang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chi-Chih Wang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yu-Hsun Wang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yi-Sun Yang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
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Silvestri F, Tromba V, Mazzotta I, Costantino F. How does diabetes type 1 affects immune response to hepatitis B virus vaccine in pediatric population? Evaluation of a booster dose in unresponsive subjects with type 1 diabetes. Minerva Pediatr (Torino) 2023; 75:822-827. [PMID: 31729208 DOI: 10.23736/s2724-5276.19.05678-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
BACKGROUND Hepatitis B virus (HBV) vaccine reduced the incidence of Hepatitis B worldwide. Genetic variability, by the presence of specific haplotypes of HLA system (HLA-DR3, HLA-DR4), influences the response to the vaccination. Subjects affected by type 1 diabetes (T1D), contrary to non-diabetics, have a high prevalence of Hepatitis B. METHODS The objective of the study was to evaluate anti-HBs antigen (anti-HBsAg) antibody (Ab) in a group of 201 children (age range: 2-18 years), regularly vaccinated against HBV according to the national vaccination schedule. Patients with anti-HBs Ab≥10 mIU/mL have been defined "responders" and those with anti-HBs Ab<10mIU/mL have been defined "non-responders." The possible association between the T1D and a low immune response to the vaccine has been subsequently valued. Besides the presence of T1D, other possible influential variables have been studied: sex, age, presence of celiac disease and Hashimoto's thyroiditis, intervening years from the diagnosis of diabetes and presence/absence of diabetic ketoacidosis at time of diagnosis. RESULTS Among the 201 subjects with T1D, 90 (44.8%) were responders, while 111 (55.2%) were non-responders; among the 145 subjects without T1D, 86 (59.3%) were responders and 59 (40.7%) non-responders. We invited "Subjects with T1D non-responders" to undergo a booster dose of the same vaccine. Of these, 21 refused the booster, reducing the sample to 90 patients. After 4 weeks from the booster dose 81 patients showed seroconversion ("false non-responders"), and 9 did not ("true non-responders"). CONCLUSIONS After the booster dose, immune response in our cross-section has been similar to general population. Given the high frequency of "false non-responders" anti-HBsAg Ab should be tested in T1D patients and a booster dose should be administrated in non-responders.
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Affiliation(s)
| | - Valeria Tromba
- Department of Pediatrics, Sapienza University, Rome, Italy
| | - Ines Mazzotta
- Department of Pediatrics, Sapienza University, Rome, Italy
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Hassnine AA, Saber MA, Fouad YM, Sarhan H, Elsayed MM, Zaki ZM, Abdelraheem EM, Abdelhalim SM, Elsayed AM. Clinical study on the efficacy of hepatitis B vaccination in hepatitis C virus related chronic liver diseases in Egypt. Virus Res 2023; 323:198953. [PMID: 36209916 PMCID: PMC10194353 DOI: 10.1016/j.virusres.2022.198953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/28/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Chronic hepatitis B (HBV) and C virus (HCV) infections represent significant public health issues internationally. HBV vaccination has high sero-conversion rates in patients with mild to moderate chronic liver disease but has reduced efficacy in advanced stages. AIM to evaluate the efficacy of hepatitis B vaccination in HCV-related chronic liver disease and identify possible factors that may contribute to hypo-responsiveness in those patients. METHODS Our study was a retrospective observational clinical study carried out at the tropical medicine department. It was conducted on 500 individuals (400 chronic HCV patients and 100 healthy controls). Individuals were divided into 5 groups: A (control group), B (cirrhotic patient not receiving treatment), C (chronic hepatitis patients receiving treatment), D (cirrhotic patients receiving treatment), and E (HCC patients receiving treatment). All individuals were subjected for comprehensive history taking, clinical examination, laboratory investigations, and assessment of anti-HBs titer. RESULTS There is an inverse relationship between the level of anti-HBs Abs and the duration of vaccine. Diabetes and presence of cirrhosis have statistically significant relationship with serum anti-HBs Abs titer (P = 0.007). Oral DAAs therapy is associated with reduced response to HBV vaccine (only 31.75% of the patients were protected). CONCLUSION HCV infection and its complications significantly impair HBV vaccine response. Levels of anti-HBs Abs decline progressively with increasing duration from the last dose in immunization schedule of HBV vaccine. Diabetes and presence of cirrhosis being the main risk factors for vaccine hypo-responsiveness, also oral DAAs therapy is associated with reduced response to HBV vaccine.
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Affiliation(s)
- Alshymaa A Hassnine
- Department of Gastroenterology Hepatology and Tropical Medicine, Faculty of medicine, Minia University, Minia, Egypt.
| | - Mona A Saber
- Department of pharmaceutics and Clinical Pharmacy, Faculty of pharmacy, Minia University, Minia, Egypt
| | - Yasser M Fouad
- Department of Gastroenterology Hepatology and Tropical Medicine, Faculty of medicine, Minia University, Minia, Egypt
| | - Hatem Sarhan
- Department of pharmaceutics and Clinical Pharmacy, Faculty of pharmacy, Minia University, Minia, Egypt
| | - Mahmoud Ma Elsayed
- Department of pharmaceutics and Clinical Pharmacy, Faculty of pharmacy, Sohag University, Sohag, Egypt
| | - Zaki M Zaki
- Department of Clinical pathology, Faculty of medicine, Minia University, Minia, Egypt
| | - Ehab M Abdelraheem
- Department of Gastroenterology Hepatology and Tropical Medicine, Faculty of medicine, Minia University, Minia, Egypt
| | - Safaa M Abdelhalim
- Department of Gastroenterology Hepatology and Tropical Medicine, Faculty of medicine, Minia University, Minia, Egypt
| | - Amr M Elsayed
- Department of Gastroenterology Hepatology and Tropical Medicine, Faculty of medicine, Minia University, Minia, Egypt
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Esposito S, Mariotti Zani E, Torelli L, Scavone S, Petraroli M, Patianna V, Predieri B, Iughetti L, Principi N. Childhood Vaccinations and Type 1 Diabetes. Front Immunol 2021; 12:667889. [PMID: 34512622 PMCID: PMC8427438 DOI: 10.3389/fimmu.2021.667889] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 08/12/2021] [Indexed: 12/17/2022] Open
Abstract
Type 1 diabetes (T1D) is the most common paediatric endocrine disease, and its frequency has been found to increase worldwide. Similar to all conditions associated with poorly regulated glucose metabolism, T1D carries an increased risk of infection. Consequently, careful compliance by T1D children with schedules officially approved for child immunization is strongly recommended. However, because patients with T1D show persistent and profound limitations in immune function, vaccines may evoke a less efficient immune response, with corresponding lower protection. Moreover, T1D is an autoimmune condition that develops in genetically susceptible individuals and some data regarding T1D triggering factors appear to indicate that infections, mainly those due to viruses, play a major role. Accordingly, the use of viral live attenuated vaccines is being debated. In this narrative review, we discussed the most effective and safe use of vaccines in patients at risk of or with overt T1D. Literature analysis showed that several problems related to the use of vaccines in children with T1D have not been completely resolved. There are few studies regarding the immunogenicity and efficacy of vaccines in T1D children, and the need for different immunization schedules has not been precisely established. Fortunately, the previous presumed relationship between vaccine administration and T1D appears to have been debunked, though some doubts regarding rotavirus vaccines remain. Further studies are needed to completely resolve the problems related to vaccine administration in T1D patients. In the meantime, the use of vaccines remains extensively recommended in children with this disease.
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Affiliation(s)
- Susanna Esposito
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Elena Mariotti Zani
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Lisa Torelli
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Sara Scavone
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Maddalena Petraroli
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Viviana Patianna
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
| | - Barbara Predieri
- Pediatric Unit, Department of Medical and Surgical Sciences of the Mothers, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Lorenzo Iughetti
- Pediatric Unit, Department of Medical and Surgical Sciences of the Mothers, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Nicola Principi
- Paediatric Clinic, Department of Medicine and Surgery, University Hospital, University of Parma, Parma, Italy
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Hung MH, Tien YC, Chiu YM. Risk factors for losing hepatitis B virus surface antibody in patients with HBV surface antigen negative/surface antibody positive serostatus receiving biologic disease-modifying anti-rheumatic drugs: a nested case-control study. Adv Rheumatol 2021; 61:22. [PMID: 33832541 DOI: 10.1186/s42358-021-00173-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) reactivation consequent to immunosuppressive therapy is an increasingly prevalent problem with serious clinical implications. Treatment with biologic agents conduces to the loss of protective antibody to HBV surface antigen (anti-HBs), which significantly increases the risk of HBV reactivation. Hence, we investigated the risk factors for losing anti-HBs in patients with rheumatic diseases and HBV surface antigen negative/anti-HBs positive (HBsAg-/anti-HBs+) serostatus during treatment with biologic disease-modifying anti-rheumatic drugs (DMARDs). METHODS Using a nested case-control design, we prospectively enrolled patients with rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis/psoriasis, or juvenile idiopathic arthritis, who were treated with biologic DMARDs at Changhua Christian Hospital, Taiwan, from January 2013 to June 2019 and had HBsAg-/anti-HBs+ serostatus; the analytic sample excluded all patients with HBsAg+ or anti-HBs- serostatus. Anti-HBs titers were monitored 6-monthly and cases were defined as anti-HBs < 10 mIU/ml during follow-up. Cases were matched one-to-all with controls with anti-HBs ≥ 10 mIU/ml on the same ascertainment date and equivalent durations of biologic DMARDs treatment (control patients could be resampled and could also become cases during follow-up). Between-group characteristics were compared and risk factors for anti-HBs loss were investigated by conditional logistic regression analyses. RESULTS Among 294 eligible patients, 23 cases were matched with 311 controls. The incidence of anti-HBs loss was ~ 2.7%/person-year during biologic DMARDs treatment. Besides lower baseline anti-HBs titer (risk ratio 0.93, 95% CI 0.89-0.97), cases were significantly more likely than controls to have diabetes mellitus (risk ratio 4.76, 95% CI 1.48-15.30) and chronic kidney disease (risk ratio 14.00, 95% CI 2.22-88.23) in univariate analysis. Risk factors remaining significantly associated with anti-HBs loss in multivariate analysis were lower baseline anti-HBs titer (adjusted risk ratio 0.93, 95% CI 0.88-0.97) and chronic kidney disease (adjusted risk ratio 45.68, 95% CI 2.39-871.5). CONCLUSIONS Besides lower baseline anti-HBs titer, chronic kidney disease also strongly predicts future anti-HBs negativity in patients with HBsAg-/anti-HBs+ serostatus who receive biologic DMARDs to treat rheumatic diseases. Patients with low anti-HBs titer (≤ 100 mIU/ml) and/or chronic kidney disease should be monitored during biologic DMARDs therapy, to enable timely prophylaxis to preempt potential HBV reactivation.
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Affiliation(s)
- Ming-Hui Hung
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Changhua Christian Hospital, 135 Nanxiao St., Changhua City, 500-06, Taiwan
| | - Ya-Chih Tien
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Changhua Christian Hospital, 135 Nanxiao St., Changhua City, 500-06, Taiwan
| | - Ying-Ming Chiu
- Department of Allergy, Immunology, and Rheumatology, Tungs' Taichung MetroHarbor Hospital, 699, Sec. 8, Taiwan Blvd., Taichung City, 43503, Taiwan.
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Hanif FM, Mehmood N, Majid Z, Luck NH, Laeeq SM, Tasneem AA, ul Haque MM. Successful response of intradermal hepatitis B vaccine in nonresponders of intramuscular hepatitis B vaccine in general and hemodialysis population. Saudi J Gastroenterol 2020; 26:299496. [PMID: 33154204 PMCID: PMC8019137 DOI: 10.4103/sjg.sjg_300_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/04/2020] [Accepted: 08/05/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Hepatitis B infection is one of the most common infections worldwide, with its vaccination being an effective preventive measure. Nonresponse to hepatitis B vaccination increases population susceptibility to virus dissemination along with detrimental complications. Despite twice intramuscular vaccination series, 14.3% in the general population and 50% in hemodialysis patients fail to mount a response against hepatitis B. We aimed to evaluate the effectiveness of intradermal (ID) vaccination in the nonresponders amongst the general and hemodialysis population. METHODS A total of 5 doses of 10 μg of hepatitis B vaccine was given intradermally, 2 weeks apart, to both the study groups: patients who were on hemodialysis and the general population group who previously had failed to achieve satisfactory antibody titers with the IM administration of the vaccine. A hepatitis B surface antibody (HBsAb) titer of ≥10 IU/mL and ≥100 IU/mL were considered "responder" and "good responder," respectively. RESULTS Out of a total of 95 participants, 49 (51.6%) were hemodialysis-dependent. Most of the participants were females 49 (51.6%). The mean age of all the participants was 39.02 ± 13.5 years (range: 18-70 years). Overall, 75.8% of the participants responded to the ID vaccination with a mean HBsAb titer of 263.5 ± 350.1 IU/L. Almost similar vaccination response was observed in both the hemodialysis and general population i.e., 75.5% and 76.1%, respectively (P = 1.00). In the hemodialysis group, the absence of hypertension (P = 0.04) and age ≥36 years (P = 0.016) were associated with an ID vaccination response. CONCLUSION For those not responding to the conventional IM route of the hepatitis B vaccine, the ID route is an effective way of immunization in this group and this approach would lead to a decrease in infection rates in the vulnerable population such as those on hemodialysis.
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Affiliation(s)
- Farina M. Hanif
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - Nasir Mehmood
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - Zain Majid
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - Nasir H. Luck
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - S. Mudassir Laeeq
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - Abbas A. Tasneem
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
| | - Muhammad Manzoor ul Haque
- Department of Hepatogastroenterology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
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Hetta HF, Elsherbiny NM, Eloseily EM, Taha SF, Gad EF, Soliman MM, Mohamed GA, Salama RH, Elfadl AA. Evaluation of the immune memory response to routine HBV vaccine in Egyptian patients with Type 1 diabetes. Future Virol 2020. [DOI: 10.2217/fvl-2019-0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We aimed to evaluate the immune memory response to HBV vaccine in diabetic patients who had received the full HBV vaccination during infancy and to assess the need for booster doses. Blood samples were collected from children (93 diabetics and 105 controls) and university students (22 diabetics and 20 controls). Anti-HBs titer in serum and after in vitro stimulation of peripheral blood mononuclear cells with HBV vaccine was measured by ELISA. Diabetic groups had significantly lower anti-HBs levels after 10 years of the last HBV vaccine dose. The percentage of diabetic patients having protective anti-HBs titers was significantly lower than controls. In conclusion, diabetic patients had lower immune response to HBV vaccine over time, emphasizing the need for a booster dose.
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Affiliation(s)
- Helal F Hetta
- Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0595, USA
- Department of Medical Microbiology & Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Nahla M Elsherbiny
- Department of Medical Microbiology & Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Esraa M Eloseily
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Samaher F Taha
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Eman Fathalla Gad
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Mona M Soliman
- Department of Internal Medicine, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Ghada A Mohamed
- Department of Internal Medicine, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Ragaa H Salama
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Azza Abo Elfadl
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
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Abstract
There is substantial variation between individuals in the immune response to vaccination. In this review, we provide an overview of the plethora of studies that have investigated factors that influence humoral and cellular vaccine responses in humans. These include intrinsic host factors (such as age, sex, genetics, and comorbidities), perinatal factors (such as gestational age, birth weight, feeding method, and maternal factors), and extrinsic factors (such as preexisting immunity, microbiota, infections, and antibiotics). Further, environmental factors (such as geographic location, season, family size, and toxins), behavioral factors (such as smoking, alcohol consumption, exercise, and sleep), and nutritional factors (such as body mass index, micronutrients, and enteropathy) also influence how individuals respond to vaccines. Moreover, vaccine factors (such as vaccine type, product, adjuvant, and dose) and administration factors (schedule, site, route, time of vaccination, and coadministered vaccines and other drugs) are also important. An understanding of all these factors and their impacts in the design of vaccine studies and decisions on vaccination schedules offers ways to improve vaccine immunogenicity and efficacy.
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van den Ende C, Marano C, van Ahee A, Bunge EM, De Moerlooze L. The immunogenicity of GSK’s recombinant hepatitis B vaccine in children: a systematic review of 30 years of experience. Expert Rev Vaccines 2017; 16:789-809. [DOI: 10.1080/14760584.2017.1338569] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Ayla van Ahee
- Pallas Health Research and Consultancy, Rotterdam, The Netherlands
| | - Eveline M. Bunge
- Pallas Health Research and Consultancy, Rotterdam, The Netherlands
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Mormile R. Hepatitis B vaccine non response: A predictor of latent autoimmunity? Med Hypotheses 2017; 104:45-47. [PMID: 28673589 DOI: 10.1016/j.mehy.2017.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/26/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023]
Abstract
Unresponsiveness to Hepatitis B virus (HBV) vaccine has been associated with interleukins involved with Th1 functioning including Interleukin-8 (IL-18) and Interferon-γ (IFN-γ). IL-18 and IFN-γ have also been implicated in the onset of different types of immune-mediate inflammatory conditions such as Type 1 Diabetes (T1D), Celiac disease (CD), rheumatoid arthritis (RA), obesity and systemic lupus erythematosus (SLE). Taking into account that HBV vaccination is provided in the 1st year of life worldwide, I propose that all babies should be tested for anti-HBs response after completion of the vaccine series. And I suggest that children with undetectable anti-HBs titers after recommended immunization schedule as well as the additional booster doses should be followed up over time because they may be at risk of developing a number of autoimmune disorders. In this light, the non-responsiveness to HBV vaccine might be a predictor of latent autoimmunity. For that reason, research studies are needed in order to verify the existence of potential IL-18 and IFN-γ gene polymorphisms to utilize as biomarkers of latent autoimmunity. As a final point, administration of neutralizing antibodies against IFN-γ and/or IL-18 might represent a future target for immune-modulatory therapeutic approach to halt or even reverse autoimmune phenomena.
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Affiliation(s)
- Raffaella Mormile
- Division of Pediatrics and Neonatology, Moscati Hospital, Aversa, Italy.
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Onal Z, Ersen A, Bayramoglu E, Yaroglu Kazancı S, Onal H, Adal E. Seroprotection status of hepatitis B and measles vaccines in children with type 1 diabetes mellitus. J Pediatr Endocrinol Metab 2016; 29:1013-7. [PMID: 27658137 DOI: 10.1515/jpem-2015-0211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 07/18/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND Type 1 diabetes mellitus (T1DM) is speculated to have an impaired immunological response to vaccines. This paper aimed to investigate the presence of specific antibodies against hepatitis B virus (HBV) and measles in diabetic children who had been immunized according to the standard national calendar of immunization. METHODS Two hundred and one diabetic children and 140 healthy controls were prospectively evaluated. Antibodies against hepatitis B (anti-HBs) and measles were detected in all individuals who completed the vaccination schedule. We noted onset of T1DM, duration of the disease, diabetes-related autoantibodies and mean HbA1c levels. RESULTS Some 72.6% of diabetics and 82.1% of controls had anti-HBs (+) (p=0.04). We found a reduced efficacy of measles vaccination in anti-HBs (-) diabetic children (p=0.009), even though there was no significant difference between the study and control groups. Onset of the disease was earlier in anti-HBs (-) diabetics than in controls (p=0.038). No difference with respect to other parameters was found. CONCLUSIONS Our data showed a reduced seroprotection rate for HBV vaccination in diabetic children and for measles with anti-HBs (-) diabetics. Larger studies should be encouraged to confirm the vaccine efficacy in diabetic children and to elucidate possible pathogenic mechanisms.
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Abstract
The strategies employed in vaccinology have improved since the seminal work of Edward Jenner in the eighteenth century. Stimulated by failure to develop vaccines for cancers and chronic infectious diseases as well as an emergence of a multitude of new technologies not available earlier, vaccinology has moved from a largely experimental art to a new phase of innovation. Currently, immune reactions can be predicted and modeled before they occur and formulations can be optimized in advance for genetic background, age, sex, lifestyle, environmental factors, and microbiome. A multitude of scientific insights and technological advancements have led us to this current status, yet possibly none of the recent developments is individually more promising to achieve these goals than the interdisciplinary science of systems vaccinology. This review summarizes current trends and applications of systems vaccinology, including technically tangible areas of vaccine and immunology research which allow the transformative process into a truly broad understanding of vaccines, thereby effectively modeling interaction of vaccines with health and disease. It is becoming clear that a multitude of factors have to be considered to understand inter-patient variability of vaccine responses including those characterized from the interfaces between the immune system, microbiome, metabolome, and the nervous system.
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Kalchiem-Dekel O, Grupel D, Bouchnik L, Sikuler E, Ben-Yakov G. Efficacy and long-term durability of intradermal recombinant hepatitis B virus vaccine among intramuscular vaccine nonresponders: A prospective study in healthcare personnel. J Gastroenterol Hepatol 2015; 30:1782-7. [PMID: 26101816 DOI: 10.1111/jgh.13022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 06/01/2015] [Accepted: 06/02/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Data on efficacy, safety, and durability of intradermal vaccine administration in persons who have not responded appropriately to intramuscular administration of hepatitis B virus (HBV) vaccine are relatively scarce. METHODS We designed a prospective case series in an urban tertiary care hospital in Israel. The medical records of 4007 healthcare personnel who had worked in the hospital between 1996 and 2006 were examined and those with an unsatisfactory level (<10 mIU/ml) of hepatitis B surface antibody (HBsAb) following two courses of a three-dose intramuscular HBV vaccine ("nonresponders") were identified. Nonresponders were vaccinated with three doses of 5 µg of intradermal recombinant hepatitis B surface antigen-based vaccine at weeks 0, 2, and 4. Level of HBsAb was determined 4 weeks after the last dose, and an additional dose was administered as needed. HBsAb level was again determined 24 weeks after the final vaccine dose to assess late immune reactivity and long-term durability of the vaccine. Vaccine safety was assessed at each vaccination and testing session. RESULTS Twenty-seven subjects were included in the study, and 21 completed the study. The proportion of subjects with satisfactory HBsAb level at 4 weeks after the last administered dose was 70.3% (19/27). The proportion of subjects with sustained immune response at 24 weeks was 62.9% (17/27) according to intention-to-treat analysis and 80.9% (17/21) according to per protocol analysis. There were no reports of adverse events in response to the administration of the vaccine. CONCLUSIONS Intradermal administration of HBV vaccine offers an efficient, safe, and durable option for intramuscular vaccine nonresponders and represents a means to optimize utilization of the widespread HBs antigen-based vaccine formulation.
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Affiliation(s)
- Or Kalchiem-Dekel
- Department of Medicine B, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Daniel Grupel
- Department of Medicine B, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Lea Bouchnik
- Infection Control Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Emanuel Sikuler
- Department of Medicine B, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Gil Ben-Yakov
- Department of Medicine B, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Institute of Gastroenterology and Hepatology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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14
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Leonardi S, Filippelli M, Manti S, Cuppari C, Salpietro C. Extending the Debate on Poor Response to Hepatitis B Virus Vaccination in Children With Celiac Disease: Which Question Remains? HEPATITIS MONTHLY 2015; 15:e30888. [PMID: 26587037 PMCID: PMC4644565 DOI: 10.5812/hepatmon.30888] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 07/29/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Salvatore Leonardi
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
- Corresponding Author: Salvatore Leonardi, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy. Tel: +39-0953782764, Fax: +39-0953782385, E-mail:
| | - Martina Filippelli
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Sara Manti
- Department of Pediatrics, Unit of Pediatric Genetics and Immunology, University of Messina, Messina, Italy
| | - Caterina Cuppari
- Department of Pediatrics, Unit of Pediatric Genetics and Immunology, University of Messina, Messina, Italy
| | - Carmelo Salpietro
- Department of Pediatrics, Unit of Pediatric Genetics and Immunology, University of Messina, Messina, Italy
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15
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Elrashidy H, El-Didamony G, Elbahrawy A, Hashim A, Alashker A, Morsy MH, Elwassief A, Elmestikawy A, Abdallah AM, Mohammad AGS, Mostafa M, George NM, Abdelhafeez H. Absence of occult hepatitis B virus infection in sera of diabetic children and adolescents following hepatitis B vaccination. Hum Vaccin Immunother 2015; 10:2336-41. [PMID: 25424940 DOI: 10.4161/hv.29521] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The prevalence of occult hepatitis B (HB) infection (OBI) in HB-vaccinated diabetic children has not yet been tested. Here, we aimed to determine the prevalence of OBI among HB-vaccinated children and adolescents with insulin-dependent diabetes mellitus (IDDM). RESULTS Eighty-seven (51.2%) children had a titer for antibodies to HB surface antigen (anti-HBs) of <10 IU/L. These included 44 (70%) IDDM children and 43 (40.2%) healthy children. Eighty-three (48.8%) children had an anti-HBs titer of ≥10 IU/L; they included 19 (30%) with IDDM and 64 (59.8%) healthy children. None of the enrolled children (n = 170) were reactive for total antibody to HB core antigen (anti-HBc) as determined by enzyme-linked immunosorbent assay. HB virus DNA was not detected in HB-vaccinated IDDM or healthy children and adolescents. METHOD An amount of 170 HBsAg-negative sera samples from HB-vaccinated children and adolescents was included. They were classified into the IDDM group (n = 63) and the healthy control group (n = 107). HBsAg, anti-HBc, and anti-HBs were tested by enzyme-linked immunosorbent assay, and HB virus DNA was tested by nested polymerase chain reaction using 3 pairs of surface, core, and X genes. IN CONCLUSION Primary HB vaccination confers long-term protection against OBI in Egyptian diabetic children and adolescents. However, the number of cases tested in this study was relatively low, and further studies and long-term follow-up of large populations are needed to draw solid and convincing conclusions.
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Affiliation(s)
- Heba Elrashidy
- a Department of Microbiology and Botany; Faculty of Science; Al-Zakazik University; Al-Zakazik, Egypt
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16
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Nashibi R, Alavi SM, Yousefi F, Salmanzadeh S, Moogahi S, Ahmadi F, Farashahinejad M. Post-vaccination Immunity Against Hepatitis B Virus and Predictors for Non-responders Among Medical Staff. Jundishapur J Microbiol 2015; 8:e19579. [PMID: 25861435 PMCID: PMC4385250 DOI: 10.5812/jjm.19579] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/27/2014] [Accepted: 09/21/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) is a major cause of chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma (HCC). HB vaccination is an essential step in the prevention of the disease and its consequent complications. OBJECTIVES Immune status of medical personnel in teaching hospitals of Khuzestan is not well known. Since these personnel are usually at risk of needle stick and other high-risk events, some challenges exist in infection control committee with regard to managing these events. This study was conducted to assess post-vaccination immunity status and non-response to HBV vaccine as well as its predictors among medical staff in a teaching hospital affiliated to Ahvaz Jundishapur University of Medical Sciences (AJUMS) in Ahvaz, southwest Iran. PATIENTS AND METHODS In this retrospective cross-sectional study, the medical staff of a teaching hospital was evaluated for their immune response against HBV and factors affecting it. The study conducted in Razi Hospital, Ahvaz City, southwest of Iran, in 2013. Demographical, clinical, and laboratory data registered in medical files of hospital staff were analyzed by SPSS software version 16 using chi-square and Fisher exact tests. Differences with P value < 0.05 were considered significant. To identify predictors for non-responders, we used odds ratio (OR) with 95% confidence interval (CI). RESULTS Out of 239 participants, 43 (18 %) were men and 196 (82%) were women. Their mean age was 31.9 ± 18.1 years (range of 20 - 55 years). Fourteen (5.9%) participants were non-responders, 37 (15.5%) were poor responders, and 188 (78.6%) were good responders. The non-responders were older (> 50 years) than the responders (P = 0.0001), while the body mass index (BMI) was not significantly different (P = 0.37) between them. Diabetes mellitus (DM) (OR: 7.3, 95% CI, 1.3 - 41.7, P = 0.05), and using immunosuppressive drugs (ISD) (OR: 3.2, 95% CI, 1.1 - 11.5, P = 0.03) were two variables in association with non-response to HB vaccine. CONCLUSIONS Non-response rate to HB vaccine in our study was approximately 6%. Age over 50 years, DM, and receiving immunosuppressive drugs may be considered as predictors for non-response to HB vaccine in medical staff.
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Affiliation(s)
- Roohangiz Nashibi
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Seyed Mohammad Alavi
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Corresponding author: Seyed Mohammad Alavi, Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran. Tel: +98-6133387724, Fax: +98-6133335396, E-mail:
| | - Farid Yousefi
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Shokrolah Salmanzadeh
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Sassan Moogahi
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Fatemeh Ahmadi
- Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Mehdi Farashahinejad
- Department of Infectious Diseases, Razi Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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Zanoni G, Contreas G, Valletta E, Gabrielli O, Mengoli C, Veneri D. Normal or defective immune response to Hepatitis B vaccine in patients with diabetes and celiac disease. Hum Vaccin Immunother 2014; 11:58-62. [PMID: 25483516 DOI: 10.4161/hv.34309] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A defective production of protective levels of antibodies to Hepatitis B (HB) vaccine is reported to occur in 4-10% of healthy subjects and a correlation with the presence of specific human leukocyte antigen (HLA) molecules, including DQ2, which also confers genetic predisposition to celiac disease (CD) and type I diabetes mellitus (T1DM), has been suggested. The aim of this study was to analyze the serological response to HB vaccine and measles-containing vaccines in 69 diabetic patients (T1DM), 42 patients with celiac disease (CD) and 79 healthy control subjects (CT). The median interval between the third dose of HB vaccine and serum collection was 6.8, 3.5, and 4.7 years for T1DM, CD and CT groups, respectively. 50/69 (72%) T1DM patients, 32/42 (76%) CD patients and 61/79 (77%) CT subjects showed protective anti-HBs antibodies after vaccination, with no statistically significant difference. On the contrary, a lower statistically significant difference was found in the mean HBsAb level of T1DM subjects when compared with the other two groups. No correlation between HLA DQ2 expression in T1DM and vaccine response was detected. The comparison of serological response to measles after vaccination also showed no statistically significant differences in the three groups. Contrasting results between these data and those reported in the literature might be due to differences in the time intervals between vaccination and testing. Prospective studies in pathological and healthy groups with the same age at HBV vaccination and with the same time interval for blood sample collection to determine antibody titers are necessary in order to provide more conclusive data.
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Affiliation(s)
- Giovanna Zanoni
- a Department of Pathology and Diagnostics; Section of Immunology; University of Verona; Italy
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18
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Filippelli M, Lionetti E, Gennaro A, Lanzafame A, Arrigo T, Salpietro C, La Rosa M, Leonardi S. Hepatitis B vaccine by intradermal route in non responder patients: An update. World J Gastroenterol 2014; 20:10383-10394. [PMID: 25132754 PMCID: PMC4130845 DOI: 10.3748/wjg.v20.i30.10383] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 03/12/2014] [Accepted: 04/29/2014] [Indexed: 02/06/2023] Open
Abstract
Vaccination is the main prophylactic measure to reduce the mortality caused by hepatitis B virus (HBV) infection in healthy subjects since the immune response to hepatitis B recombinant vaccination occurs in over 90% of general population. Individuals who develop an anti-HBs titer less than 10 mIU/mL after primary vaccination cycle are defined “no responders”. Many factors could cause a non response to the HBV vaccination, such as administration of the vaccine in buttocks, impaired vaccine storage conditions, drug abuse, smoking, infections and obesity. Moreover there are some diseases, like chronic kidney disease, human immunodeficiency virus infection, chronic liver disease, celiac disease, thalassaemia, type I diabetes mellitus, down’s syndrome and other forms of mental retardation that are characterized by a poorer response to HBV vaccination than healthy subjects. To date it is still unclear how to treat this group of patients at high risk of hepatitis B infection. Recent studies seem to indicate that the administration of HBV recombinant vaccine by the intradermal route is very effective and could represent a more useful strategy than intramuscular route. This review focuses on the use of anti hepatitis B vaccine by intradermal route as alternative to conventional intramuscular vaccine in all non responder patients. A comprehensive review of the literature using PubMed database, with appropriate terms, was undertaken for articles in English published since 1983. The literature search was undertaken in September 2013.
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Elrashidy H, Elbahrawy A, El-Didamony G, Mostafa M, George NM, Elwassief A, Saeid Mohamed AG, Elmestikawy A, Morsy MH, Hashim A, Abdelbasseer MA. Antibody levels against hepatitis B virus after hepatitis B vaccination in Egyptian diabetic children and adolescents. Hum Vaccin Immunother 2013; 9:2002-6. [PMID: 23787761 DOI: 10.4161/hv.25426] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The remarkable effectiveness of universal infantile hepatitis B (HB) vaccination is well documented in many countries. Nevertheless, the influence of insulin-dependent diabetes mellitus (IDDM) on the sero-protective level of antibody to hepatitis B surface antigen (anti-HBs) after HB vaccination has not been investigated in Egyptian children. The aim of this study was to investigate long-term anti-HBs sero-protective levels after infantile HB vaccination in Egyptian IDDM children. RESULTS The mean age of the healthy children was 10.86 ± 1.21 y (range, 5.5-15 y); 49 (45.8%) were boys and 58 (54.2%) were girls. The mean age of the IDDM children was 10.29 ± 3.04 y (range, 4-17 y); 32 (50.8%) were boys and 31 (49.2%) were girls. There were no significant differences between the healthy and IDDM children with respect to age and sex (p>0.05). Among the 107 healthy children, 43 (40%) did not have a protective anti-HBs level (anti-HBs<10 IU/L) and 64 (60%) had a protective level (anti-HBs ≥ 10 IU/L). In contrast, among the IDDM children, 44 (69.8%) and 19 (30.2%) did not and did have protective anti-HBs levels, respectively. This difference in anti-HBs concentration between healthy and diabetic children was highly significant (p<0.001). None of the vaccinated healthy or IDDM children was reactive to HBsAg or total anti-HBc. PATIENTS AND METHODS A total of 170 children (81 boys, 89 girls) who had been routinely vaccinated against HB were included. Their mean age was 10 ± 2.1 y. The enrolled children were divided into healthy (n = 107) and IDDM (n = 63) cohorts. Body Mass Index and levels of hepatitis B surface antigen (HBsAg), total antibody to hepatitis B core antigen (anti-HBc), and anti-HBs were evaluated in all children. In addition, the duration of diabetes mellitus (DM) and levels of glycated hemoglobin (HbA1c) were measured in IDDM children. CONCLUSION Our results are alarming. It appears that the majority of Egyptian diabetic children vaccinated against HB may not have sufficient anti-HBs levels to protect them from HB. Moreover, this study emphasizes the need for a population-based strategy for the management of patients without an anti-HBs protective level after HB vaccination and justifies the need to elucidate the heritability of those children.
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Affiliation(s)
- Heba Elrashidy
- Department of Microbiology and Botany; Faculty of Science; Al-Zakazik University; Al-Zakazik, Egypt
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20
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Vitaliti G, Praticò AD, Cimino C, Di Dio G, Lionetti E, La Rosa M, Leonardi S. Hepatitis B vaccine in celiac disease: Yesterday, today and tomorrow. World J Gastroenterol 2013; 19:838-45. [PMID: 23430309 PMCID: PMC3574880 DOI: 10.3748/wjg.v19.i6.838] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/12/2012] [Accepted: 10/16/2012] [Indexed: 02/06/2023] Open
Abstract
Some studies showed that in celiac patients the immunological response to vaccination is similar to that one found in general population except for vaccine against hepatitis B virus (HBV). The non-responsiveness to HBV vaccine has also been described in healthy people, nevertheless the number of non-responders has been demonstrated to be higher in celiac disease (CD) patients than in healthy controls. Several hypothesis explaining this higher rate of unresponsiveness to HBV vaccine in CD patients have been described, such as the genetic hypothesis, according with CD patients carrying the disease-specific haplotype HLA-B8, DR3, and DQ2, show a lower response to HBV vaccine both in clinical expressed CD patients and in healthy people carrying the same haplotype. On the other hand, it has been demonstrated that the gluten intake during the vaccination seems to influence the response to the same vaccine. Moreover, it has been demonstrated a possible genetic predisposition to hepatitis B vaccine non-responsiveness likely due to the presence of specific human leukocyte antigen haplotypes and specific single nucleotide polymorphism in genes of cytokine/cytokine receptors and toll like receptors, but the pathogenic mechanism responsible for this low responsiveness still remains unclear. The aim of this review is to focus on the possible pathogenic causes of unresponsiveness to HBV vaccine in CD patients and to propose an alternative vaccination schedule in order to improve the responsiveness to HBV vaccine in this at-risk patients.
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