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Chermon D, Birk R. Brain-derived neurotrophic factor gene rs925946 associates with Israeli females' obesity predisposition: An interaction between genetics, eating habits, and physical inactivity. Nutr Res 2024; 125:61-68. [PMID: 38503023 DOI: 10.1016/j.nutres.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
The global obesity pandemic presents a pressing health challenge, with an increasing prevalence shaped by an intricate interplay of genetics and environment. Brain-derived neurotrophic factor (BDNF) plays a pivotal role in regulating feeding behavior and energy expenditure. BDNF single nucleotide polymorphisms have been linked to obesity risk. We hypothesized that BDNF rs925946 is positively associated with obesity susceptibility in the Israeli population. We aimed to study BDNF rs925946 association with obesity susceptibility and its interaction with environmental factors, including eating habits, sugar-sweetened beverages, and physical activity. A data cohort of 4668 Israeli adults (≥18 years, Jewish) was analyzed. Participants' genotypic data for the BDNF rs925946 and lifestyle and eating behavior questionnaire data were analyzed for the association between obesity predisposition and gene-environment interactions. Female (n = 3259) BDNF rs925946 T-allele carriers had an elevated obesity odd (odds ratio [OR] = 1.2; 95% confidence interval [CI], 1.03-1.4, P = .02). BDNF rs925946 genotype interacted significantly with physical inactivity, sugar-sweetened beverage consumption, and eating habits score to enhance obesity odds (OR = 1.4; 95% CI, 1.14-1.7; OR = 1.54, 95% CI, 1.1-2.15; and OR = 1.4; 95% CI, 1.2-2.11, respectively). Our data demonstrated a significant association between BDNF rs925946 T-allele female carriers and a higher obesity predisposition, affected by modifiable lifestyle factors.
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Affiliation(s)
- Danyel Chermon
- Nutrition Department, Health Sciences Faculty, Ariel University, 407000, Israel
| | - Ruth Birk
- Nutrition Department, Health Sciences Faculty, Ariel University, 407000, Israel.
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Horwitz A, Levi-Carmel N, Shnaider O, Birk R. BBS genes are involved in accelerated proliferation and early differentiation of BBS-related tissues. Differentiation 2024; 135:100745. [PMID: 38215537 DOI: 10.1016/j.diff.2024.100745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/01/2024] [Accepted: 01/02/2024] [Indexed: 01/14/2024]
Abstract
Bardet-Biedl syndrome (BBS) is an inherited disorder primarily ciliopathy with pleiotropic multi-systemic phenotypic involvement, including adipose, nerve, retinal, kidney, Etc. Consequently, it is characterized by obesity, cognitive impairment and retinal, kidney and cutaneous abnormalities. Initial studies, including ours have shown that BBS genes play a role in the early developmental stages of adipocytes and β-cells. However, this role in other BBS-related tissues is unknown. We investigated BBS genes involvement in the proliferation and early differentiation of different BBS cell types. The involvement of BBS genes in cellular proliferation were studied in seven in-vitro and transgenic cell models; keratinocytes (hHaCaT) and Ras-transfected keratinocytes (Ras-hHaCaT), neuronal cell lines (hSH-SY5Y and rPC-12), silenced BBS4 neural cell lines (siBbs4 hSH-SY5Y and siBbs4 rPC-12), adipocytes (m3T3L1), and ex-vivo transformed B-cells obtain from BBS4 patients, using molecular and biochemical methodologies. RashHaCaT cells showed an accelerated proliferation rate in parallel to significant reduction in the transcript levels of BBS1, 2, and 4. BBS1, 2, and 4 transcripts linked with hHaCaT cell cycle arrest (G1 phase) using both chemical (CDK4 inhibitor) and serum deprivation methodologies. Adipocyte (m3T3-L1) Bbs1, 2 and 4 transcript levels corresponded to the cell cycle phase (CDK4 inhibitor and serum deprivation). SiBBS4 hSH-SY5Y cells exhibited early cell proliferation and differentiation (wound healing assay) rates. SiBbs4 rPC-12 models exhibited significant proliferation and differentiation rate corresponding to Nestin expression levels. BBS4 patients-transformed B-cells exhibited an accelerated proliferation rate (LPS-induced methodology). In conclusions, the BBS4 gene plays a significant, similar and global role in the cellular proliferation of various BBS related tissues. These results highlight the universal role of the BBS gene in the cell cycle, and further deepen the knowledge of the mechanisms underlying the development of BBS.
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Affiliation(s)
- Avital Horwitz
- Nutrition Department, Health Sciences Faculty, Ariel University, Israel
| | | | - Olga Shnaider
- Nutrition Department, Health Sciences Faculty, Ariel University, Israel
| | - Ruth Birk
- Nutrition Department, Health Sciences Faculty, Ariel University, Israel.
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Chermon D, Birk R. Predisposition of the Common MC4R rs17782313 Female Carriers to Elevated Obesity and Interaction with Eating Habits. Genes (Basel) 2023; 14:1996. [PMID: 38002939 PMCID: PMC10671328 DOI: 10.3390/genes14111996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
The global rise in obesity is attributed to genetic predisposition interaction with an obesogenic environment. Melanocortin 4 receptor (MC4R) rs17782313 polymorphism has been linked to common obesity with varying influence across different populations. MC4R is a crucial player in the leptin proopiomelanocortin pathway that regulates weight hemostasis. We aimed to study MC4R rs17782313 and its interaction with eating behaviors on obesity predisposition in the Israeli population. Adults' (n = 5785, >18 y) genotype and anthropometric and demographic data were analyzed using logistic regression models adjusting for age, sex, T1DM, and T2DM. MC4R rs17782313 significantly predisposes to elevated obesity risk under the recessive and additive models (OR = 1.38, 95% CI: 1.1-1.72, p = 0.005 and OR = 1.1, 95% CI: 1.01-1.2, p = 0.03, respectively) adjusted for confounders (age, sex, T1DM, and T2DM). Stratification by sex demonstrated that carrying the common MC4R rs17782313 is significantly associated with an elevated predisposition to obesity under the recessive model among females only (OR = 1.41, 95% CI: 1.09-1.82, p = 0.01), with an average of 0.85 BMI increment compared with wild type and one risk allele carriers. MC4R rs17782313 significantly interacted with several eating behaviors to enhance the risk of obesity. Our findings demonstrate that MC4R rs17782313 homozygous female carriers are significantly predisposed to obesity amplified by eating behaviors.
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Affiliation(s)
| | - Ruth Birk
- Nutrition Department, Health Sciences Faculty, Ariel University, Ariel 40700, Israel;
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Horwitz A, Birk R. Adipose Tissue Hyperplasia and Hypertrophy in Common and Syndromic Obesity-The Case of BBS Obesity. Nutrients 2023; 15:3445. [PMID: 37571382 PMCID: PMC10421039 DOI: 10.3390/nu15153445] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/16/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Obesity is a metabolic state generated by the expansion of adipose tissue. Adipose tissue expansion depends on the interplay between hyperplasia and hypertrophy, and is mainly regulated by a complex interaction between genetics and excess energy intake. However, the genetic regulation of adipose tissue expansion is yet to be fully understood. Obesity can be divided into common multifactorial/polygenic obesity and monogenic obesity, non-syndromic and syndromic. Several genes related to obesity were found through studies of monogenic non-syndromic obesity models. However, syndromic obesity, characterized by additional features other than obesity, suggesting a more global role of the mutant genes related to the syndrome and, thus, an additional peripheral influence on the development of obesity, were hardly studied to date in this regard. This review summarizes present knowledge regarding the hyperplasia and hypertrophy of adipocytes in common obesity. Additionally, we highlight the scarce research on syndromic obesity as a model for studying adipocyte hyperplasia and hypertrophy, focusing on Bardet-Biedl syndrome (BBS). BBS obesity involves central and peripheral mechanisms, with molecular and mechanistic alternation in adipocyte hyperplasia and hypertrophy. Thus, we argue that using syndromic obesity models, such as BBS, can further advance our knowledge regarding peripheral adipocyte regulation in obesity.
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Affiliation(s)
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel 40700, Israel;
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Tesler R, Regev O, Birk R, Barak S, Shapiro Y, Weiss Y, Zigdon A, Ben Zvi K, Vaknin Y, Green G, Sohlberg I, Zwilling M, Goldstein L. Health promotion programs in prison: attendance and role in promoting physical activity and subjective health status. Front Public Health 2023; 11:1189728. [PMID: 37546299 PMCID: PMC10400886 DOI: 10.3389/fpubh.2023.1189728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction Maintaining an inmate's health can serve as a challenge due to unhealthy background, risky behavior, and long imprisonment. This study aimed to analyze the prevalence of participation in health promotion activities among Israeli inmates and its association with their physical activity levels and subjective health status. Methods A cross-sectional study was designed to examine 522 inmates (429 males, 93 females). The data were collected by trained face-to-face interviewers and self-report questionnaires. Results Most of the participants (82.37%) did not meet the recommended physical activity level. Half of the participants reported that their physical activity levels decreased since they were in prison compared with 29.50% who reported that their physical activity levels increased. Physical activity and subjective health status were significantly higher among younger male inmates. Furthermore, participation in health-promoting activities was associated with higher levels of physical activity and subjective health status. Discussion Health promotion activities may play an important role in addressing the challenges of maintaining inmate health. Implications of the findings are further discussed.
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Affiliation(s)
- Riki Tesler
- Department of Health System Management, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Health System Management, Health Promotion and Wellbeing Research Center, School of Health Sciences, Ariel, Israel
| | - Ofer Regev
- Department of Health System Management, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Health System Management, Health Promotion and Wellbeing Research Center, School of Health Sciences, Ariel, Israel
| | - Ruth Birk
- Department of Nutrition Sciences, School of Health Sciences, Ariel University, Ariel, Israel
| | - Sharon Barak
- Department of Health System Management, Health Promotion and Wellbeing Research Center, School of Health Sciences, Ariel, Israel
- Department of Nursing, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Pediatric Rehabilitation, The Chai Sheba Medical Center, The Edmond and Lily Safra Children’s Hospital, Ramat-Gan, Israel
| | - Yair Shapiro
- Department of Health System Management, School of Health Sciences, Ariel University, Ariel, Israel
| | - Yossi Weiss
- Department of Health System Management, School of Health Sciences, Ariel University, Ariel, Israel
| | - Avi Zigdon
- Department of Health System Management, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Health System Management, Health Promotion and Wellbeing Research Center, School of Health Sciences, Ariel, Israel
| | - Kathrin Ben Zvi
- Department of Pediatric Rehabilitation, The Chai Sheba Medical Center, The Edmond and Lily Safra Children’s Hospital, Ramat-Gan, Israel
| | | | - Gizell Green
- Department of Health System Management, Health Promotion and Wellbeing Research Center, School of Health Sciences, Ariel, Israel
- Department of Nursing, School of Health Sciences, Ariel University, Ariel, Israel
| | - Idit Sohlberg
- Department of Business Administration, Ariel University, Ariel, Israel
| | - Moti Zwilling
- Department of Business Administration, Ariel University, Ariel, Israel
| | - Liav Goldstein
- Israel Prison Service, Medical Officer Office, Ramla, Israel
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Aharon SB, Regev O, Tesler R, Barak S, Shapira Y, Weiss Y, Shtainmetz N, Vaknin Y, Goldstein L, Ben-Zvi K, Birk R. Assessment of Nutritional Status and Health Perception among Male Inmates in Israeli Prisons. Nutrients 2023; 15:nu15102255. [PMID: 37242137 DOI: 10.3390/nu15102255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/27/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
The nutritional and health perceptions of inmates are crucial to their overall well-being. However, limited research has been conducted on this topic. This study aimed to assess the nutritional and health perception state of male inmates in eleven prisons in Israel. A cross-sectional study was conducted between February and September 2019 with 176 voluntary participants. Structured questionnaires were used to collect data on socio-demographic characteristics, healthy habits, subjective health status, and prison situation variables. The study found that the prevalence of overweight (40%) and obesity (18.1%) among 18-34-year-old inmates was significantly higher than in the reference Israeli population. Short detention periods (up to one year) predicted less weight gain, while older age predicted poorer health status. Better emotional status significantly predicted better subjective health status among male inmates. There is a need for nutrition interventions to improve the health of inmates. The significant weight gain during incarceration and the associated lower health index and stress highlights the importance of increasing knowledge and promoting a healthier lifestyle in incarceration as early as possible and continuing over time.
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Affiliation(s)
| | - Ofer Regev
- Health Management Department, Ariel University, Ariel 40700, Israel
| | - Riki Tesler
- Health Management Department, Ariel University, Ariel 40700, Israel
| | - Sharon Barak
- Nursing Department, Ariel University, Ariel 40700, Israel
- Department of Pediatric Rehabilitation, The Edmond and Lily Safra Children's Hospital, The Chaim Sheba Medical Center, Ramat-Gan 52621, Israel
| | - Yair Shapira
- Health Management Department, Ariel University, Ariel 40700, Israel
| | - Yossi Weiss
- Health Management Department, Ariel University, Ariel 40700, Israel
| | - Noa Shtainmetz
- Health Management Department, Ariel University, Ariel 40700, Israel
| | | | - Liav Goldstein
- Chief Medical Officer Office, Israel Prison Service, P.O. Box 81, Ramla 72100, Israel
| | | | - Ruth Birk
- Nutrition Department, Ariel University, Ariel 40700, Israel
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Behr W, Li H, Birk R, Nastev A, Kramer B, Klein S, Stuck BA, Birk CE. Impact of Bepanthen ® and dexpanthenol on human nasal ciliary beat frequency in vitro. Eur Arch Otorhinolaryngol 2023:10.1007/s00405-023-07916-y. [PMID: 36920556 DOI: 10.1007/s00405-023-07916-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/05/2023] [Indexed: 03/16/2023]
Abstract
BACKGROUND Dexpanthenol-containing ointments/fluids are recommended to restore impaired nasal mucosa. To date, there are no data about the influence of dexpanthenol or formulations including dexpanthenol on ciliary beat frequency (CBF) of nasal epithelial cells. METHODS We tested the ciliary beat frequency of human nasal epithelial cells in RPMI 1640 cell solution using in vitro high-frequency video microscopy every 60 s over a period of 15 min (min). Bepanthen® solution and dexpanthenol in two clinically relevant concentrations (1.67% and 3.33%) were added to the cells. Addition of sterile water served as control group. To get a better overview, the measurements after 1 min, 5 min and 15 min were combined. RESULTS The CBF in the control group (n = 17) after 15 min was 7.3 ± 2.6 Hz. In comparison, the CBF after 15 min was 1.8 ± 1.0 Hz in the 3.33% Bepanthen® group (n = 17) and 3.2 ± 1.2 Hz in the 1.67% group, which was statistically significantly lower in both groups (p < 0.001). With regard to the dexpanthenol group (n = 17) a CBF of 6.0 ± 2.6 Hz with 3.33% and 6.1 ± 2.4 Hz with 1.67% dexpanthenol, was detected, which was again statistically significantly lower (p = 0.06) compared to the control group except CBF at 15 min with 1.57% (n = 17; p = 0.04). In general, the effect on CBF was less pronounced with dexpanthenol compared with Bepanthen® with a statistically significant difference between the two formulations. The results were verified by calculating an analysis of variance (ANOVA). CONCLUSIONS Bepanthen® as an ointment, solution or inhalation is commonly used in ENT for mucosal care. Our results have shown that both substances reduce CBF in clinically relevant concentrations, although the effect was more pronounced with Bepanthen® compared to dexpanthenol solution, which could be related to additives or change of physical properties in the solution. Further research is needed to assess potential clinical relevance.
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Affiliation(s)
- Wieland Behr
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany.
| | - H Li
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - R Birk
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - A Nastev
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - B Kramer
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - S Klein
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - B A Stuck
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
| | - C E Birk
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldinger Straße, 35043, Marburg, Germany
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Chermon D, Birk R. Drinking Habits and Physical Activity Interact and Attenuate Obesity Predisposition of TMEM18 Polymorphisms Carriers. Nutrients 2023; 15:nu15020266. [PMID: 36678137 PMCID: PMC9860767 DOI: 10.3390/nu15020266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
The transmembrane protein 18 (TMEM18) gene plays a central and peripheral role in weight regulation. TMEM18 genetic polymorphisms have been identified as an important risk factor for obesity, depending on ethnic population and age. This research aimed to study the association of common TMEM18 polymorphisms with obesity and their interactions with modifiable factors, namely drinking habits (sugar-sweetened beverages (SSBs), flavored water and wine) and physical activity (PA) in the Israeli population. Adults (n = 3089) were analyzed for common TMEM18 polymorphisms and lifestyle and nutrition habits were obtained from questionnaires using adjusted (age, sex) binary logistic regression models. TMEM18 rs939583 and rs1879523 were significantly associated with increased obesity risk (OR = 1.35, 95% CI (1.17−1.57) and OR = 1.66, 95% CI (1.29−2.15), respectively). TMEM18 rs939583 interacted with consumption of 1−3 weekly glasses of wine and PA to attenuate obesity risk (OR = 0.82 95% CI (0.74−0.9; p < 0.001) and OR = 0.74 95% CI (0.68−0.8), respectively), while physical inactivity, SSBs and flavored water consumption significantly enhanced obesity risk (OR = 1.54 95% CI (1.41−1.67), OR = 1.31 95% CI (1.14−1.51) and OR = 1.35 95% CI (1.13−1.62), respectively). PA duration was significantly associated with a lower BMI for rs939583 risk carriers, with a PA cutoff of >30 min/week (p = 0.005) and >90 min/week (p = 0.01). Common TMEM18 SNPs were significantly linked with adult obesity risk and interacted with modifiable lifestyle factors.
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Kaufman-Shriqui V, Shani M, Boaz M, Lahad A, Vinker S, Birk R. Opportunities and challenges in delivering remote primary care during the Coronavirus outbreak. BMC Prim Care 2022; 23:135. [PMID: 35641930 PMCID: PMC9151999 DOI: 10.1186/s12875-022-01750-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/25/2022] [Indexed: 11/18/2022]
Abstract
Background Social distancing and lockdowns were implemented during the first period of the COVID-19 pandemic. Primary care physicians needed to adapt quickly to deliver remote care/telemedicine. Methods A cross-sectional, 47-item online Google Survey was distributed through the Israel Association of Family Physicians (IAFP) mailing list between March 31-May 5, 2020. The questionnaire included demographics, physician characteristics, and information on usage and perceived telemedicine quality. Sampling weights by sex and age groups were applied. Results One hundred fifty-nine primary care physicians (10.6% of registered IAFP members; 63.5% women; mean age 53.4 ± 10.4 years and median professional experience 21.3 years) replied to the survey. The majority (59.7%) of the participants performed a mixture of in-person along with phone counseling. About 40% had no former telemedicine experience. The majority indicated that telephone and video formats were inferior to in-person consultation (68%, 57.1% online and phone, respectively). The overall counseling quality grade (on a 1–10 scale,)median (IQR)) was 6.2 (3) for telephone and 7(2) for video. While 66.9% reported experiencing no challenges, 10% had technical problems, 10% interpersonal problems, 5.6% scheduling difficulties, and 7.5% other difficulties. Majority of 56.6% physicians indicated they prescribed more antibiotics,16.4% sent more blood tests, 24.5% referred more to experts, and 49.7% referred more to imaging in comparison to usual counseling. Higher phone quality score was significantly associated with physicians who indicated not prescribing more antibiotics during the pandemic (OR = 0.30, 95%CI 0.134–0.688, p = 0.004). Higher online quality score was associated with physicians who indicated not sending more blood tests during the pandemic (OR = 0.06 95%CI 0.008–0.378, P = 0.003). Conclusions Our findings suggest telehealth holds considerable promise for counseling in the primary care setting. However, interpersonal challenges raised by physicians should be understood in-depth to develop tailored training and further examine it in randomized trials while integrating patient-reported outcomes. Finally, further research on utility, cost, and cost-efficiency during remote counseling with follow-ups, medical prescribing, and additional referrals is needed.
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Lavi G, Horwitz A, Einstein O, Zipori R, Gross O, Birk R. Fndc5/irisin is regulated by myogenesis stage, irisin, muscle type and training. Am J Transl Res 2022; 14:7063-7079. [PMID: 36398256 PMCID: PMC9641476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/20/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES Irisin, a novel myokine that responds to exercise, was initially identified as a regulator of fat tissue metabolism. We aimed to investigate fibronectin type III domain-containing protein 5 (Fndc5)/irisin, auto/para-crine role in different muscle fibers, different activities, and muscle cell differentiation. METHODS Using in-vitro, ex-vivo, and in-vivo muscle models, Fndc5 was studied at the physiological and molecular levels. RESULTS Following training, C57BL/6 mice (n=10) were subject to fast and slow-twitch muscles dissection and molecular analysis. Isolated mice (C57BL/6, n=14) slow and fast-twitch muscles were subject to electrical aerobic and anaerobic pulses stimulation (EPS). L6 muscle cells differentiation was characterized by Fndc5 differentiation-depended expression pattern parallel with significant hypertrophy, Myogenin elevation, and overlapping Peroxisome proliferator-activated receptor-gamma coactivator-1 alpha (Pgc-1α) expression pattern. Exogenous irisin significantly altered Fndc5 expression; augmented at early differentiation (3-4-fold, P<0.05) and decreased (2-fold, P<0.05) at late differentiation. Training induced a significant elevation in Fndc5/irisin and Pgc-1α expression levels in all muscle types compared to the sedentary state, where soleus muscle (slow) Fndc5 expression levels were significantly higher compared to levels in all other fast muscles (3-140-fold, P<0.001). Similarly, following EPS, Fndc5 expression levels were significantly augmented in the soleus slow muscle following both aerobic and anaerobic activity (3-3.5-fold, P<0.05) compared to extensor digitorum longus (fast) muscle. CONCLUSIONS Muscle cell's Fndc5 expression has a differentiation-depended pattern paralleling Pgc-1α expression and hypertrophy. Irisin autocrinally and significantly regulate Fndc5 and Pgc-1α in a differentiation-depended manner. Muscle Fndc5 expression levels are dependent on fiber type and activity type.
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Affiliation(s)
- Gal Lavi
- Department of Nutrition, Faculty of Health Sciences, Ariel UniversityIsrael
| | - Avital Horwitz
- Department of Nutrition, Faculty of Health Sciences, Ariel UniversityIsrael
| | - Ofira Einstein
- Department of Physical Therapy, Faculty of Health Sciences, Ariel UniversityIsrael
| | - Reut Zipori
- Department of Nutrition, Faculty of Health Sciences, Ariel UniversityIsrael
| | - Ofri Gross
- Department of Nutrition, Faculty of Health Sciences, Ariel UniversityIsrael
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel UniversityIsrael
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Hofi L, Flidel-Rimon O, Hershkovich–Shporen C, Zaharoni H, Birk R. Differences in growth patterns and catch up growth of small for gestational age preterm infants fed on fortified mother's own milk versus preterm formula. Br J Nutr 2022; 129:1-24. [PMID: 35748057 PMCID: PMC10197085 DOI: 10.1017/s0007114522000599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 11/06/2022]
Abstract
Small for gestational age (SGA) is typically defined as birthweight < 10th percentile for age. Limited data are available regarding the growth of SGA preterm infants in relation to feeding type. We aimed to study SGA preterm infants fed fortified mother's own milk (MOM) or preterm formula (PF) on growth patterns and catch-up growth at discharge and two-years corrected age (CA). Our retrospective cohort study included data from medical records and follow-up questionnaires about SGA preterm infants born at <37 weeks fed on MOM (n=40) and PF (n=40). Weight, length/height and head circumference (HC) were collected at birth, discharge and at two years CA, and Δ z-scores were calculated.The MOM group had significantly larger negative change in weight and length z-scores between birth and discharge, and smaller positive change in HC z-score (-0.47 (±0.41) v. -0.25 (±0.36), P= 0.01; -0.63 (±0.75) v. -0.27 (±0.75), P= 0.03; 0.13 (±0.67) v. 0.41 (±0.55), P= 0.04, respectively). Almost half the MOM fed infants experienced poor length growth by discharge compared to 22% of PF fed infants (P=0.03). By two years CA, both groups had similar positive change in weight and HC z-scores, but MOM fed infants had a slower increase in height z-score (0.64 (±1.30) v. 1.33 (±1.33), P=0.02), and only 40% had achieved catch-up height compared with 68% of the PF group (P=0.02).Our study indicates that fortified MOM fed SGA preterm infants may need extra nutritional support in the first two years of life to achieve height growth potential.
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Affiliation(s)
- Lilach Hofi
- Department of Nutritional Sciences, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Neonatology, Kaplan Medical Center, Rehovot, Hebrew University, Jerusalem, Israel
- Department of Clinical Nutrition, Kaplan Medical Center, Rehovot, Hebrew University, Jerusalem, Israel
| | - Orna Flidel-Rimon
- Department of Neonatology, Kaplan Medical Center, Rehovot, Hebrew University, Jerusalem, Israel
| | | | - Hilla Zaharoni
- Department of Clinical Nutrition, Kaplan Medical Center, Rehovot, Hebrew University, Jerusalem, Israel
| | - Ruth Birk
- Department of Nutritional Sciences, School of Health Sciences, Ariel University, Ariel, Israel
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12
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Efrat M, Stein A, Pinkas H, Unger R, Birk R. Sugar Consumption Is Negatively Associated with Semen Quality. Reprod Sci 2022; 29:3000-3006. [PMID: 35606632 DOI: 10.1007/s43032-022-00973-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/15/2022] [Indexed: 11/24/2022]
Abstract
Recently, in parallel to decrease in semen quality, the consumption of sugar has risen sharply. This provided the rationale to study the association between whole dietary sugar consumption and semen quality. Our aim was to investigate the association between sugar consumption and semen quality. The final cross-sectional study population (n = 280 of initial n = 593, after applying inclusion and exclusion criteria) attending routine semen analysis at sperm bank laboratory was subject to semen quality analysis according to WHO criteria (volume, sperm concentration, total sperm count, percentage total motility, and percentage normal morphology) and filled food frequency questionnaire (FFQ) and lifestyle questionnaire. Associations between consumed sugars and semen quality were analyzed using multivariate regression adjusted to relevant cofounders for 2 food components containing sugar including soft drinks (SoftD) and total added sugar to food products (SugProd). We found negative association between higher consumption of dietary sugar in all 2 dietary sub-categories and sperm concentration. Significant sperm concentration decrements of 18% and 23% were associated with SoftD median consumption of 0.2 drinks/day (IQR; 0.1-0.5 drinks/day). Significant sperm concentration decrements of 15% and 17% were associated with median SugProd consumption of 25 teaspoons of added sugar/day (IQR; 19-31 teaspoons of added sugar/day). In conclusion, our study findings demonstrate that sugar consumption is negatively associated with sperm concentration.
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Affiliation(s)
- Michal Efrat
- Department of Nutrition, Faculty of Health Sciences, Ariel University, 40700, Ariel, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Anat Stein
- Sperm Bank and Male Infertility Clinic, Belinson Hospital, Petah-Tiqva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Haim Pinkas
- Sperm Bank and Male Infertility Clinic, Belinson Hospital, Petah-Tiqva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ron Unger
- The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, 40700, Ariel, Israel.
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13
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Haque F, Jawad N, Brzuszek A, Birk R, Stephens A, Brown V, Bozas G, Avery G, Maraveyas A. PO-37: A study of the evolution of radiological features of untreated small volume pulmonary embolism (PE) in cancer patients. Thromb Res 2022. [DOI: 10.1016/s0049-3848(22)00227-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Moseley P, Jackson N, Omar A, Eldoadoa M, Samaras C, Birk R, Ahmed F, Chakrabarti P. Single-centre experience of using procalcitonin to guide antibiotic therapy in COVID-19 intensive care patients. J Hosp Infect 2021; 119:194-195. [PMID: 34656662 PMCID: PMC8516658 DOI: 10.1016/j.jhin.2021.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 11/26/2022]
Affiliation(s)
- P Moseley
- Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK.
| | - N Jackson
- Department of Critical Care, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - A Omar
- Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - M Eldoadoa
- Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - C Samaras
- Department of Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - R Birk
- Department of Critical Care, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - F Ahmed
- Department of Biochemistry, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
| | - P Chakrabarti
- Department of Microbiology, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, UK
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15
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Stuck BA, Weeß HG, Viniol C, Cassel W, Birk R. [Differential diagnosis of hypersomnia in surgical sleep medicine-more than just sleep apnea!]. HNO 2021; 69:140-145. [PMID: 32885308 DOI: 10.1007/s00106-020-00927-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Otorhinolaryngologists play a vital role in the management of patients with obstructive sleep apnea (OSA) in Germany, particularly with regards to outpatient diagnostics as well as conservative and surgical treatment of patients with intolerance to ventilation therapy. Although establishment of differential indications for surgical therapy and performance of additional preoperative drug-induced sleep endoscopy in patients with sleep-disordered breathing are among the core competencies of otorhinolaryngologists, differential diagnostic considerations and detection of comorbid sleep disorders can be challenging, particularly for those without extensive sleep medicine training and experience. However, detection of comorbid sleep disorders is of particular importance when permanent surgical treatment is considered. Daytime sleepiness is the typical leading symptom of OSA; nevertheless, other disorders of hypersomnolence need to be considered in these patients and can easily be overlooked. This may lead to inadequate indications for surgical treatment. Based on two case reports, narcolepsy is presented as a comorbid disorder and differential diagnosis in patients with OSA.
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Affiliation(s)
- B A Stuck
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Baldingerstraße, 35043, Marburg, Deutschland.
| | - H G Weeß
- Pfalzklinikum für Psychiatrie und Neurologie AdöR, Klingenmünster, Deutschland
| | - C Viniol
- Interdisziplinäres Schlafmedizinisches Zentrum Hessen, Schwerpunkt für Innere Medizin, Pneumologie, Universitätsklinikum Gießen und Marburg GmbH, Philipps-Universität Marburg, Marburg, Deutschland
| | - W Cassel
- Interdisziplinäres Schlafmedizinisches Zentrum Hessen, Schwerpunkt für Innere Medizin, Pneumologie, Universitätsklinikum Gießen und Marburg GmbH, Philipps-Universität Marburg, Marburg, Deutschland
| | - R Birk
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Baldingerstraße, 35043, Marburg, Deutschland
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16
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Navarro DA, Shapiro Y, Birk R, Boaz M. Orange napkins increase food intake and satisfaction with hospital food service: A randomized intervention. Nutrition 2020; 67-68S:100008. [PMID: 34332711 DOI: 10.1016/j.nutx.2020.100008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 04/01/2020] [Accepted: 04/09/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Increased malnutrition risk has been identified in >30% of hospitalized adults in Israel. Because orange has been identified as an appetite stimulant, orange napkins were considered a low-cost enhancement of the meal context. The aim of this study was to assess the effect of an orange napkin on the meal tray on food intake and satisfaction with food service among adults hospitalized in an internal medicine department. METHODS One hundred and thirty-one patients hospitalized in Internal Medicine Department E, Edith Wolfson Medical Center, Holon, Israel, participated in the study. Patients were randomized to lunch trays with an orange (experimental) or white (control) napkin. Digital imaging was used with the modified Comstock Scale to quantify dietary intake. A validated questionnaire was used to score satisfaction with the hospital's food service. Medical history, anthropometric measures, reason for hospitalization, and meal modifications were extracted from the medical record. RESULTS Patients in the orange napkin group (n = 66) consumed 17.6% more hospital-provided food than those in the white napkin (control) group (n = 65), driven by the significantly greater proportion of the carbohydrate side dishes and the vegetable dishes consumed. Patients in the orange napkin group also reported significantly greater satisfaction with the hospital's food service. CONCLUSION The addition of an orange napkin to the meal tray of patients hospitalized in internal medicine departments can increase dietary intake and improve satisfaction with hospital food services. At about 5 cents per piece, the orange napkin is a low-cost, easily implemented strategy to address malnutrition risk in hospitalized adults.
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Affiliation(s)
| | - Yair Shapiro
- Department of Health Systems Management, Ariel University, Ariel, Israel
| | - Ruth Birk
- Department of Nutrition Sciences, Ariel University, Ariel, Israel
| | - Mona Boaz
- Department of Nutrition Sciences, Ariel University, Ariel, Israel.
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17
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Kaufman-Shriqui V, Salem H, Boaz M, Birk R. Knowledge and Attitudes Towards Nutrigenetics: Findings from the 2018 Unified Forces Preventive Nutrition Conference (UFPN). Nutrients 2020; 12:nu12020335. [PMID: 32012749 PMCID: PMC7071140 DOI: 10.3390/nu12020335] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/24/2020] [Accepted: 01/24/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Nutrigenetics indicates that individual genetic variability results in altered health outcomes necessitating personalized nutrition adaptation. Registered dietitians are recognized as the clinical nutrition experts, but their knowledge and attitudes regarding nutrigenetics has not been delineated. Methods: This cross sectional online survey was conducted in a convenience sample of 169 national nutrition conference attendees. The survey queried demographics, knowledge, and attitudes towards nutrigenetics and information on training in nutrigenetics. Results: The majority of participants were registered dietitians and female, 45% of whom held advanced degrees. Personalized nutrition was perceived by 93.5% of participants as highly important or important; however, 94% of respondents indicated they are not sufficiently knowledgeable in personalized nutrition and only 9.5% had received training in nutrigenetics. The mean nutrigenetics knowledge score was 6.89 ± 1.67 (out of a possible 12). A multivariate regression model of knowledge score identified education as the only independent predictor of this outcome. Conclusion: Personalized nutrition is a rapidly developing field that incorporates genetic data into clinical practice. Dietitians recognize the importance of advanced studies to acquire knowledge in nutrigenetics. Only by acquiring the necessary knowledge can dietitians accurately translate this nutrigenetics into clinical practice.
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Affiliation(s)
| | | | | | - Ruth Birk
- Correspondence: ; Tel.: +972-3-976-5704; Fax: +972-3-542-3553
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18
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Anosov M, Birk R. Bardet-Biedl syndrome obesity: BBS4 regulates cellular ER stress in early adipogenesis. Mol Genet Metab 2019; 126:495-503. [PMID: 30902542 DOI: 10.1016/j.ymgme.2019.03.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/16/2019] [Accepted: 03/14/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Bardet-Biedl syndrome (BBS) is an autosomal recessive ciliopathy, presenting with early obesity onset. The etiology of BBS obesity involves both central and peripheral defects, through mechanisms mostly yet to be deciphered. We previously showed BBS4 expression in adipogenesis, peaking at day 3 of differentiation. Obesity is characterized by cellular stress which promotes pathological consequences. AIMS We set out to test a possible role of BBS4 in adipocyte endoplasmic reticulum (ER) stress-induced unfolding protein response (UPR). METHODS BBS4 silenced (SiBBS4) and overexpressing (OEBBS4) pre-adipocyte murine cell lines were subjected to ER-stress induction (Tunicamycin, TM) during adipogenesis. ER-stress UPR was analyzed at the transcript, protein and biochemical levels (microscopy, immunocytochemistry, western blotting, quantitative RT-PCR and X-box binding protein 1 (XBP-1) splicing). RESULTS In silico analysis showed that BBS4 harbors an ER localization sequences indicative of ER localization. We verified BBS4's ER localization in adipocytes by immunocytochemistry and cellular protein fractionation. Furthermore, we demonstrated that BBS4 expression is significantly up-regulated by ER-stress, as indicated by protein and transcript levels. SiBBS4 adipocytes exhibited swollen ER typical to ER-stress and significant XBP-1 down-regulation at day 3 of differentiation. Following ER-stress, SiBBS4 adipocytes exhibited XBP-1 ER retention, failure to translocate to the nucleus and depletion of the nuclear active cleaved ATF6α. BBS4 did not alter ATF6α processing by S1P and S2P in the Golgi. Notably, SiBBS4 cells demonstrated significant reduction in the downstream activated phospho-IRE1α, independent of ER-stress. CONCLUSIONS At day 3 of adipogenesis, coinciding with the timing of its peak expression, BBS4 is localized to the ER and is involved in the ER stress response and trafficking. BBS4 depletion results in swollen ER with impaired intracellular nucleus translocation of XBP-1 and ATF6α. Thus, BBS4 affects the ER stress response in early adipogenesis, altering ER stress responsiveness and the adipocyte ER phenotype.
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Affiliation(s)
- Mariana Anosov
- Department of Nutrition, Faculty of Health Sciences, Ariel University, 40700, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, 40700, Israel.
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19
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Birk R, Heifetz EM. Variations in biochemical values for common laboratory tests: a comparison among multi-ethnic Israeli women cohort. Ir J Med Sci 2019; 188:249-258. [DOI: 10.1007/s11845-018-1825-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 04/19/2018] [Indexed: 10/17/2022]
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20
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Efrat M, Stein A, Pinkas H, Unger R, Birk R. Dietary patterns are positively associated with semen quality. Fertil Steril 2018; 109:809-816. [PMID: 29778381 DOI: 10.1016/j.fertnstert.2018.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/28/2017] [Accepted: 01/09/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To study association of semen quality with a priori whole dietary pattern indexes, which reflect real-world dietary practices and the numerous combinations by which foods are consumed: Healthy Eating Index (HEI), Dietary Approaches to Stop Hypertension (DASH), alternate Mediterranean Diet score (aMED), and Alternative Healthy Eating Index (AHEI). DESIGN A cross-sectional single-center study. SETTING Hospital fertility center and university. PATIENT(S) A total of 280 men attending fertility center from 2012 to 2015. INTERVENTION(S) Food frequency questionnaire (FFQ) and semen and sperm analysis. MAIN OUTCOME MEASURE(S) Food consumption with the use of FFQ and HEI, AHEI, aMED, DASH nutritional individual scoring indexes. Semen parameters, including semen volume, sperm concentration, motility, total count, and morphology. RESULT(S) Comparing the highest and lowest quartiles of the nutritional indexes, men in the highest quartiles of HEI, AHEI, aMed, and DASH indexes had significantly higher adjusted means of sperm concentration (by 10%, 45%, and 24% for HEI, AHEI, and DASH, respectively), normal sperm morphology (by 21% and 8% for AHEI and DASH, respectively), total sperm count (by 29% for AHEI), and sperm motility (by 6% and 11% for aMed and HEI, respectively). CONCLUSION(S) Adherence to any of the four dietary indexes is associated with better overall sperm quality, with AHEI best associated. Following our novel findings, we recommend using AHEI as a clinical and practical tool for public whole nutritional recommendation for semen quality.
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Affiliation(s)
- Michal Efrat
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, West Bank, Israel; Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan, Israel
| | - Anat Stein
- Department of Obstetrics and Gynecology, Beilinson Medical Center, Infertility and In Vitro Fertilization Unit, Petah Tikva, Israel; Beilinson Medical Center, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Haim Pinkas
- Department of Obstetrics and Gynecology, Beilinson Medical Center, Infertility and In Vitro Fertilization Unit, Petah Tikva, Israel; Beilinson Medical Center, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ron Unger
- Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, West Bank, Israel.
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21
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Halperin D, Kadir R, Perez Y, Drabkin M, Yogev Y, Wormser O, Berman EM, Eremenko E, Rotblat B, Shorer Z, Gradstein L, Shelef I, Birk R, Abdu U, Flusser H, Birk OS. SEC31A mutation affects ER homeostasis, causing a neurological syndrome. J Med Genet 2018; 56:139-148. [PMID: 30464055 DOI: 10.1136/jmedgenet-2018-105503] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 10/22/2018] [Accepted: 10/30/2018] [Indexed: 11/03/2022]
Abstract
BACKGROUND Consanguineous kindred presented with an autosomal recessive syndrome of intrauterine growth retardation, marked developmental delay, spastic quadriplegia with profound contractures, pseudobulbar palsy with recurrent aspirations, epilepsy, dysmorphism, neurosensory deafness and optic nerve atrophy with no eye fixation. Affected individuals died by the age of 4. Brain MRI demonstrated microcephaly, semilobar holoprosencephaly and agenesis of corpus callosum. We aimed at elucidating the molecular basis of this disease. METHODS Genome-wide linkage analysis combined with whole exome sequencing were performed to identify disease-causing variants. Functional consequences were investigated in fruit flies null mutant for the Drosophila SEC31A orthologue. SEC31A knockout SH-SY5Y and HEK293T cell-lines were generated using CRISPR/Cas9 and studied through qRT-PCR, immunoblotting and viability assays. RESULTS Through genetic studies, we identified a disease-associated homozygous nonsense mutation in SEC31A. We demonstrate that SEC31A is ubiquitously expressed, and that the mutation triggers nonsense-mediated decay of its transcript, comprising a practical null mutation. Similar to the human disease phenotype, knockdown SEC31A flies had defective brains and early lethality. Moreover, in line with SEC31A encoding one of the two coating layers comprising the Coat protein complex II (COP-II) complex, trafficking newly synthesised proteins from the endoplasmic reticulum (ER) to the Golgi, CRISPR/Cas9-mediated SEC31A null mutant cells demonstrated reduced viability through upregulation of ER-stress pathways. CONCLUSION We demonstrate through human and Drosophila genetic and in vitro molecular studies, that a severe neurological syndrome is caused by a null mutation in SEC31A, reducing cell viability through enhanced ER-stress response, in line with SEC31A's role in the COP-II complex.
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Affiliation(s)
- Daniel Halperin
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Rotem Kadir
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Yonatan Perez
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Max Drabkin
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Yuval Yogev
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ohad Wormser
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Erez M Berman
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ekaterina Eremenko
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Zlotowski Center for Neuroscience, The National Institute of Biotechnology in the Negev; Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Barak Rotblat
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Zamir Shorer
- Pediatric Neurology Unit, Division of Pediatrics, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Libe Gradstein
- Department of Ophthalmology, Clalit Health Services, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ilan Shelef
- Department of Imaging, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Uri Abdu
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Hagit Flusser
- Zussman Child Development Center, Division of Pediatrics, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ohad S Birk
- The Morris Kahn Laboratory of Human Genetics, National Institute for Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Genetics Institute, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer Sheva, Israel
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22
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Efrat M, Stein A, Pinkas H, Breitbart H, Unger R, Birk R. Paraoxonase 1 (PON1) attenuates sperm hyperactivity and spontaneous acrosome reaction. Andrology 2018; 7:24-30. [DOI: 10.1111/andr.12552] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/26/2018] [Accepted: 08/18/2018] [Indexed: 12/19/2022]
Affiliation(s)
- M. Efrat
- Department of Nutrition Faculty of Health Sciences Ariel University ArielIsrael
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - A. Stein
- Department of Obstetrics and Gynecology Infertility and In Vitro Fertilization Unit Belinson Medical Center Petah Tiqva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv‐Yafo Israel
| | - H. Pinkas
- Department of Obstetrics and Gynecology Infertility and In Vitro Fertilization Unit Belinson Medical Center Petah Tiqva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv‐Yafo Israel
| | - H. Breitbart
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - R. Unger
- The Mina and Everard Goodman Faculty of Life Sciences Bar Ilan University Ramat‐GanIsrael
| | - R. Birk
- Department of Nutrition Faculty of Health Sciences Ariel University ArielIsrael
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23
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Drabkin M, Birk OS, Birk R. Heterozygous versus homozygous phenotype caused by the same MC4R mutation: novel mutation affecting a large consanguineous kindred. BMC Med Genet 2018; 19:135. [PMID: 30068297 PMCID: PMC6090656 DOI: 10.1186/s12881-018-0654-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 07/24/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND The hypothalamic G-protein-coupled-receptor melanocortin-4 receptor (MC4R) is a key player in the central circuit regulating energy expenditure and appetite. Heterozygous loss-of-function MC4R mutations are the most common known genetic cause of monogenic human obesity, with more than 200 mutations described to date, affecting 2-3% of the population in various cohorts tested. Homozygous or compound heterozygous MC4R mutations are much less frequent, and only few families have been described in which heterozygotes and homozygotes of the same mutation are found. METHODS We performed exome sequencing in a consanguineous Bedouin family with morbid obesity to identify the genetic cause of the disease. Clinical examination and biochemical assays were done to delineate the phenotype. RESULTS We report the frequency of MC4R mutations in the large inbred Bedouin Israeli population. Furthermore, we describe consanguineous inbred Bedouin kindred with multiple individuals that are either homozygous or heterozygous carries of the same novel MC4R mutation (c.124G > T, p.E42*). All family members with the homozygous mutation exhibited morbid early-onset obesity, while heterozygote individuals had either a milder overweight phenotype or no discernable phenotype compared to wild type family members. While elder individuals homozygous or heterozygous for the MC4R mutation had abnormally high triglycerides, cholesterol, glucose and HbA1C levels, most did not. CONCLUSIONS MC4R mutation homozygotes exhibited morbid early-onset obesity, while heterozygotes had a significantly milder overweight phenotype. Whereas obesity due to MC4R mutations is evident as of early age - most notably in homozygotes, the metabolic consequences emerge only later in life.
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Affiliation(s)
- Max Drabkin
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ohad S Birk
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel. .,Genetics Institute, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel.
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Tang WW, McGee P, Lachin JM, Li DY, Hoogwerf B, Hazen SL, Nathan D, Zinman B, Crofford O, Genuth S, Brown‐Friday J, Crandall J, Engel H, Engel S, Martinez H, Phillips M, Reid M, Shamoon H, Sheindlin J, Gubitosi‐Klug R, Mayer L, Pendegast S, Zegarra H, Miller D, Singerman L, Smith‐Brewer S, Novak M, Quin J, Genuth S, Palmert M, Brown E, McConnell J, Pugsley P, Crawford P, Dahms W, Gregory N, Lackaye M, Kiss S, Chan R, Orlin A, Rubin M, Brillon D, Reppucci V, Lee T, Heinemann M, Chang S, Levy B, Jovanovic L, Richardson M, Bosco B, Dwoskin A, Hanna R, Barron S, Campbell R, Bhan A, Kruger D, Jones J, Edwards P, Bhan A, Carey J, Angus E, Thomas A, Galprin A, McLellan M, Whitehouse F, Bergenstal R, Johnson M, Gunyou K, Thomas L, Laechelt J, Hollander P, Spencer M, Kendall D, Cuddihy R, Callahan P, List S, Gott J, Rude N, Olson B, Franz M, Castle G, Birk R, Nelson J, Freking D, Gill L, Mestrezat W, Etzwiler D, Morgan K, Aiello L, Golden E, Arrigg P, Asuquo V, Beaser R, Bestourous L, Cavallerano J, Cavicchi R, Ganda O, Hamdy O, Kirby R, Murtha T, Schlossman D, Shah S, Sharuk G, Silva P, Silver P, Stockman M, Sun J, Weimann E, Wolpert H, Aiello L, Jacobson A, Rand L, Rosenzwieg J, Nathan D, Larkin M, Christofi M, Folino K, Godine J, Lou P, Stevens C, Anderson E, Bode H, Brink S, Cornish C, Cros D, Delahanty L, eManbey ., Haggan C, Lynch J, McKitrick C, Norman D, Moore D, Ong M, Taylor C, Zimbler D, Crowell S, Fritz S, Hansen K, Gauthier‐Kelly C, Service F, Ziegler G, Barkmeier A, Schmidt L, French B, Woodwick R, Rizza R, Schwenk W, Haymond M, Pach J, Mortenson J, Zimmerman B, Lucas A, Colligan R, Luttrell L, Lopes‐Virella M, Caulder S, Pittman C, Patel N, Lee K, Nutaitis M, Fernandes J, Hermayer K, Kwon S, Blevins A, Parker J, Colwell J, Lee D, Soule J, Lindsey P, Bracey M, Farr A, Elsing S, Thompson T, Selby J, Lyons T, Yacoub‐Wasef S, Szpiech M, Wood D, Mayfield R, Molitch M, Adelman D, Colson S, Jampol L, Lyon A, Gill M, Strugula Z, Kaminski L, Mirza R, Simjanoski E, Ryan D, Johnson C, Wallia A, Ajroud‐Driss S, Astelford P, Leloudes N, Degillio A, Schaefer B, Mudaliar S, Lorenzi G, Goldbaum M, Jones K, Prince M, Swenson M, Grant I, Reed R, Lyon R, Kolterman O, Giotta M, Clark T, Friedenberg G, Sivitz W, Vittetoe B, Kramer J, Bayless M, Zeitler R, Schrott H, Olson N, Snetselaar L, Hoffman R, MacIndoe J, Weingeist T, Fountain C, Miller R, Johnsonbaugh S, Patronas M, Carney M, Mendley S, Salemi P, Liss R, Hebdon M, Counts D, Donner T, Gordon J, Hemady R, Kowarski A, Ostrowski D, Steidl S, Jones B, Herman W, Martin C, Pop‐Busui R, Greene D, Stevens M, Burkhart N, Sandford T, Floyd J, Bantle J, Flaherty N, Terry J, Koozekanani D, Montezuma S, Wimmergren N, Rogness B, Mech M, Strand T, Olson J, McKenzie L, Kwong C, Goetz F, Warhol R, Hainsworth D, Goldstein D, Hitt S, Giangiacomo J, Schade D, Canady J, Burge M, Das A, Avery R, Ketai L, Chapin J, Schluter M, Rich J, Johannes C, Hornbeck D, Schutta M, Bourne P, Brucker A, Braunstein S, Schwartz S, Maschak‐Carey B, Baker L, Orchard T, Cimino L, Songer T, Doft B, Olson S, Becker D, Rubinstein D, Bergren R, Fruit J, Hyre R, Palmer C, Silvers N, Lobes L, Rath PP, Conrad P, Yalamanchi S, Wesche J, Bratkowksi M, Arslanian S, Rinkoff J, Warnicki J, Curtin D, Steinberg D, Vagstad G, Harris R, Steranchak L, Arch J, Kelly K, Ostrosaka P, Guiliani M, Good M, Williams T, Olsen K, Campbell A, Shipe C, Conwit R, Finegold D, Zaucha M, Drash A, Morrison A, Malone J, Bernal M, Pavan P, Grove N, Tanaka E, McMillan D, Vaccaro‐Kish J, Babbione L, Solc H, DeClue T, Dagogo‐Jack S, Wigley C, Ricks H, Kitabchi A, Chaum E, Murphy M, Moser S, Meyer D, Iannacone A, Yoser S, Bryer‐Ash M, Schussler S, Lambeth H, Raskin P, Strowig S, Basco M, Cercone S, Zinman B, Barnie A, Devenyi R, Mandelcorn M, Brent M, Rogers S, Gordon A, Bakshi N, Perkins B, Tuason L, Perdikaris F, Ehrlich R, Daneman D, Perlman K, Ferguson S, Palmer J, Fahlstrom R, de Boer I, Kinyoun J, Van Ottingham L, Catton S, Ginsberg J, McDonald C, Harth J, Driscoll M, Sheidow T, Mahon J, Canny C, Nicolle D, Colby P, Dupre J, Hramiak I, Rodger N, Jenner M, Smith T, Brown W, May M, Lipps Hagan J, Agarwal A, Adkins T, Lorenz R, Feman S, Survant L, White N, Levandoski L, Grand G, Thomas M, Joseph D, Blinder K, Shah G, Burgess D, Boniuk I, Santiago J, Tamborlane W, Gatcomb P, Stoessel K, Ramos P, Fong K, Ossorio P, Ahern J, Gubitosi‐Klug R, Meadema‐Mayer L, Beck C, Farrell K, Genuth S, Quin J, Gaston P, Palmert M, Trail R, Dahms W, Lachin J, Backlund J, Bebu I, Braffett B, Diminick L, Gao X, Hsu W, Klumpp K, Pan H, Trapani V, Cleary P, McGee P, Sun W, Villavicencio S, Anderson K, Dews L, Younes N, Rutledge B, Chan K, Rosenberg D, Petty B, Determan A, Kenny D, Williams C, Cowie C, Siebert C, Steffes M, Arends V, Bucksa J, Nowicki M, Chavers B, O'Leary D, Polak J, Harrington A, Funk L, Crow R, Gloeb B, Thomas S, O'Donnell C, Soliman E, Zhang Z, Li Y, Campbell C, Keasler L, Hensley S, Hu J, Barr M, Taylor T, Prineas R, Feldman E, Albers J, Low P, Sommer C, Nickander K, Speigelberg T, Pfiefer M, Schumer M, Moran M, Farquhar J, Ryan C, Sandstrom D, Williams T, Geckle M, Cupelli E, Thoma F, Burzuk B, Woodfill T, Danis R, Blodi B, Lawrence D, Wabers H, Gangaputra S, Neill S, Burger M, Dingledine J, Gama V, Sussman R, Davis M, Hubbard L, Budoff M, Darabian S, Rezaeian P, Wong N, Fox M, Oudiz R, Kim L, Detrano R, Cruickshanks K, Dalton D, Bainbridge K, Lima J, Bluemke D, Turkbey E, der Geest ., Liu C, Malayeri A, Jain A, Miao C, Chahal H, Jarboe R, Nathan D, Monnier V, Sell D, Strauch C, Hazen S, Pratt A, Tang W, Brunzell J, Purnell J, Natarajan R, Miao F, Zhang L, Chen Z, Paterson A, Boright A, Bull S, Sun L, Scherer S, Lopes‐Virella M, Lyons T, Jenkins A, Klein R, Virella G, Jaffa A, Carter R, Stoner J, Garvey W, Lackland D, Brabham M, McGee D, Zheng D, Mayfield R, Maynard J, Wessells H, Sarma A, Jacobson A, Dunn R, Holt S, Hotaling J, Kim C, Clemens Q, Brown J, McVary K. Oxidative Stress and Cardiovascular Risk in Type 1 Diabetes Mellitus: Insights From the DCCT/EDIC Study. J Am Heart Assoc 2018. [PMCID: PMC6015340 DOI: 10.1161/jaha.117.008368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
Hyperglycemia leading to increased oxidative stress is implicated in the increased risk for the development of macrovascular and microvascular complications in patients with type 1 diabetes mellitus.
Methods and Results
A random subcohort of 349 participants was selected from the
DCCT
/
EDIC
(Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications) cohort. This included 320 controls and 29 cardiovascular disease cases that were augmented with 98 additional known cases to yield a case cohort of 447 participants (320 controls, 127 cases). Biosamples from
DCCT
baseline, year 1, and closeout of
DCCT
, and 1 to 2 years post‐
DCCT
(
EDIC
years 1 and 2) were measured for markers of oxidative stress, including plasma myeloperoxidase, paraoxonase activity, urinary F
2α
isoprostanes, and its metabolite, 2,3 dinor‐8
iso
prostaglandin F
2α
. Following adjustment for glycated hemoblobin and weighting the observations inversely proportional to the sampling selection probabilities, higher paraoxonase activity, reflective of antioxidant activity, and 2,3 dinor‐8
iso
prostaglandin F
2α
, an oxidative marker, were significantly associated with lower risk of cardiovascular disease (−4.5% risk for 10% higher paraoxonase,
P
<0.003; −5.3% risk for 10% higher 2,3 dinor‐8
iso
prostaglandin F
2α
,
P
=0.0092). In contrast, the oxidative markers myeloperoxidase and F
2α
isoprostanes were not significantly associated with cardiovascular disease after adjustment for glycated hemoblobin. There were no significant differences between
DCCT
intensive and conventional treatment groups in the change in all biomarkers across time segments.
Conclusions
Heightened antioxidant activity (rather than diminished oxidative stress markers) is associated with lower cardiovascular disease risk in type 1 diabetes mellitus, but these biomarkers did not change over time with intensification of glycemic control.
Clinical Trial Registration
URL
:
https://www.clinicaltrials.gov
. Unique identifiers:
NCT
00360815 and
NCT
00360893.
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Affiliation(s)
- W.H. Wilson Tang
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Paula McGee
- The Biostatistics Center, George Washington University, Rockville, MD
| | - John M. Lachin
- The Biostatistics Center, George Washington University, Rockville, MD
| | - Daniel Y. Li
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | | | - Stanley L. Hazen
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
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25
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Häussler D, Sommer JU, Nastev A, Aderhold C, Wenzel A, Kramer B, Stuck BA, Birk R. Influence of MP 29-02 on ciliary beat frequency in human epithelial cells in vitro. Eur Arch Otorhinolaryngol 2018; 275:1483-1490. [PMID: 29675754 DOI: 10.1007/s00405-018-4979-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/16/2018] [Indexed: 11/25/2022]
Abstract
PURPOSE MP 29-02, which contains fluticasone propionate and azelastine hydrochloride, is used as a topical nasal application for the treatment of seasonal and perennial allergic rhinitis. Although a multitude of data is available on the clinical symptom reduction and treatment safety of MP 29-02, the effect of MP 29-02 on ciliary beat frequency (CBF) has not been evaluated thus far. METHODS MP 29-02-containing solution was applied at concentrations of 2.5, 5, 10, and 20% to 14 healthy subjects, and nasal ciliated epithelial cells were then visualized using a phase-contrast microscope. CBF was measured after the application of MP 29-02. For a comparison, fluticasone propionate was used. CBF measurements were then performed for 15 min at 22 °C. Ringer's solution was applied as a negative control. RESULTS MP 29-02 significantly reduced CBF at all the tested concentrations compared with that of the control group within the observation time. At a 2.5% concentration, MP 29-02 significantly reduced CBF from 6.81 Hz (SD ± 1.35 Hz) at baseline to 4.88 Hz (SD ± 1.52 Hz, p < 0.001) after 15 min. In contrast, for fluticasone propionate, a significant reduction was observed only with the 20% concentration after 5, 10, and 15 min. CONCLUSIONS MP 29-09 significantly reduced CB, with an almost linear relationship between the MP 29-09 concentration and reduction in CBF. For fluticasone propionate, a significant reduction of CBF was observed only at the highest analyzed concentration. The findings have implications for the long-term use of the MP 29-02. Yet, further clinical studies are needed to confirm these results in vivo, especially in patients with seasonal or perennial allergic rhinits.
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Affiliation(s)
- D Häussler
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
| | - J U Sommer
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
| | - A Nastev
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - C Aderhold
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - A Wenzel
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - B Kramer
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - B A Stuck
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Marburg, Marburg, Germany
- Philipps-Universität Marburg, Marburg, Germany
| | - R Birk
- Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Marburg, Marburg, Germany
- Philipps-Universität Marburg, Marburg, Germany
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26
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Salem H, Yatchenko Y, Anosov M, Rosenfeld T, Altarescu G, Grisaru-Granovsky S, Birk R. Maternal and neonatal irisin precursor gene FNDC5 polymorphism is associated with preterm birth. Gene 2018; 649:58-62. [DOI: 10.1016/j.gene.2018.01.097] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 01/29/2018] [Indexed: 01/08/2023]
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Abstract
AIM In overweight/obese individuals, modest 5% weight loss and its maintenance promotes health; however, it is challenging and typically unachievable, especially in community settings. Established predictors of weight loss outcome in a community setting are lacking, hindering the development of practical interventions and prevention tools. Our aim was to identify predictors associated with 5% weight reduction (initial 6 months) and maintenance (1 year) in overweight and obese adults undergoing weight reduction treatment, free of charge, in a community setting. METHODS Computerised medical files of 11 842 adults aged 50.6 ± 16.3 years, attending 162 primary clinics, were analysed retrospectively. Thirty medical, biochemical and demographic independent variables were tested as potential predictors using multiple logistic regression models. RESULTS Significant predictors of high successful weight reduction were: not being treated with insulin (odds ratio (OR) = 0.53), higher baseline body mass index (OR = 1.05) and younger age (OR = 0.98). Weight maintenance predictors were: successful initial weight reduction (OR = 1.26), short time intervals between weighings (OR = 0.88) and frequent weighing (OR = 0.95). Visits to a dietitian were significantly associated with success during both periods: each visit raised the probability of success by 13.4 and 7.6%, respectively. Type 2 diabetes or use of hypoglycaemic drugs were not significant predictors. CONCLUSIONS In a community-based setting, number of visits to a dietitian is a strong predictor of successful weight reduction and maintenance. Initial success is a critical predictor of weight loss maintenance. Subgroup of older, diabetic patients treated with insulin has a dramatically lower probability of weight reduction success.
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Affiliation(s)
- Adina Bachar
- Human Population Biology Research Unit, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Unit of Research, Clalit Health Services, Sharon - Shomron District, Netanya, Israel.,Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Gregory Livshits
- Human Population Biology Research Unit, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel
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28
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Tabberer M, Lomas D, Birk R, Westermayer B, Berchtold C, Brealey N, Zhu CQ, Pascoe S, Lipson D. Single inhaler triple therapy (ICS/LAMA/LABA) in patients with advanced COPD: German responder results for patient reported symptom E-RS and subscale analyses from the FULFIL trial. Pneumologie 2018. [DOI: 10.1055/s-0037-1619346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Ben-Harosh Y, Anosov M, Salem H, Yatchenko Y, Birk R. Pancreatic stellate cell activation is regulated by fatty acids and ER stress. Exp Cell Res 2017; 359:76-85. [DOI: 10.1016/j.yexcr.2017.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 08/03/2017] [Indexed: 02/07/2023]
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30
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Abstract
BACKGROUND Positional obstructive sleep apnea (POSA) is common in mild and moderate forms of obstructive sleep apnea (OSA). Two smartphone applications (apps) professing to avoid the supine position (SP) are available: for Android the "Apnea Sleep Position Trainer" and for iOS the "SomnoPose-Sleep Position Monitor". The smartphone needs to be attached to the chest to recognize SP, which then triggers a vibration alarm. This is intended to encourage the patient to change position and the vibration stops as soon as SP is left. These apps, however, have not yet undergone a systematic evaluation. METHODS Adult patients with polysomnographically diagnosed POSA were invited to participate in the study. POSA was defined as an apnea-hypopnea index (AHI) in SP >10, with AHI in a lateral position <10 and doubling of the AHI in SP. After 1 month, a control polysomnography (PSG) was performed and compliance (at least 4 h/night on 5 of 7 days) was evaluated after 6 months by phone. A sufficient therapy was defined as reduction in SP to <10% of the total sleep time and to an overall AHI <10. RESULTS Although 57 patients entered the study, 24 did not appear to the PSG control; therefore, 33 patients finished the study, of whom 25 were treated successfully. The overall AHI in 33 patients was reduced from 14.5 ± 9.0 to 9.5 ± 12.6 and the time in SP decreased significantly from 71.1 ± 50.5 to 25.4 ± 65.0 min. Compliance among the 25 continuously treated patients after 6 months was 79.2%. CONCLUSION Both smartphone apps have the capability to prevent PS in POSA patients and can potentially offer a cost-effective option in the treatment of POSA.
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Affiliation(s)
- D Haas
- Universitäts-HNO-Klinik Mannheim, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland.
| | - R Birk
- Universitäts-HNO-Klinik Mannheim, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
| | - J T Maurer
- Universitäts-HNO-Klinik Mannheim, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
| | - K Hörmann
- Universitäts-HNO-Klinik Mannheim, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
| | - B A Stuck
- Universitätsklinik für Hals-Nasen-Ohren-Heilkunde, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Deutschland
| | - J U Sommer
- Universitäts-HNO-Klinik Mannheim, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
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31
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Yogev Y, Perez Y, Noyman I, Madegem AA, Flusser H, Shorer Z, Cohen E, Kachko L, Michaelovsky A, Birk R, Koifman A, Drabkin M, Wormser O, Halperin D, Kadir R, Birk OS. Progressive hereditary spastic paraplegia caused by a homozygous KY mutation. Eur J Hum Genet 2017; 25:966-972. [PMID: 28488683 DOI: 10.1038/ejhg.2017.85] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 04/07/2017] [Accepted: 04/13/2017] [Indexed: 12/19/2022] Open
Abstract
Twelve individuals of consanguineous Bedouin kindred presented with autosomal recessive progressive spastic paraplegia evident as of age 0-24 months, with spasticity of lower limbs, hyperreflexia, toe walking and equinus deformity. Kyphoscolisois was evident in older patients. Most had atrophy of the lateral aspects of the tongue and few had intellectual disability. Nerve conduction velocity, electromyography and head and spinal cord magnetic resonance imaging were normal in tested subjects. Muscle biopsy showed occasional central nuclei and fiber size variability with small angular fibers. Genome-wide linkage analysis identified a 6.7Mbp disease-associated locus on chromosome 3q21.3-3q22.2 (LOD score 9.02; D3S1290). Whole-exome sequencing identified a single homozygous variant within this locus, c.51_52ins(28); p.(V18fs56*) in KY, segregating in the family as expected and not found in 190 Bedouin controls. High KY transcript levels were demonstrated in muscular organs with lower expression in the CNS. The phenotype is reminiscent of kyphoscoliosis seen in Ky null mice. Two recent studies done independently and parallel to ours describe somewhat similar phenotypes in one and two patients with KY mutations. KY encodes a tranglutaminase-like peptidase, which interacts with muscle cytoskeletal proteins and is part of a Z-band protein complex, suggesting the disease mechanism may resemble myofibrillar myopathy. However, the mixed myopathic-neurologic features caused by human and mouse Ky mutations are difficult to explain by loss of KY sarcomere stabilizing function alone. KY transcription in CNS tissues may imply that it also has a role in neuromotor function, in line with the irregularity of neuromuscular junction in Ky null mutant mice.
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Affiliation(s)
- Yuval Yogev
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Yonatan Perez
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Iris Noyman
- Department of Pediatric Neurology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Anwar Abu Madegem
- Department of Pediatrics, Beer Sheva, Clalit Health Services, Israel
| | - Hagit Flusser
- Zussman Child Development Center, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Zamir Shorer
- Department of Pediatric Neurology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Eugene Cohen
- Department of Orthopaedics, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Leonid Kachko
- Department of Pathology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Analia Michaelovsky
- Zussman Child Development Center, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Arie Koifman
- Genetics Institute, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Max Drabkin
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Ohad Wormser
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Daniel Halperin
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Rotem Kadir
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel
| | - Ohad S Birk
- The Morris Kahn Laboratory of Human Genetics at the National Institute of Biotechnology in the Negev and Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel.,Genetics Institute, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
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Abstract
Bardet-Biedl syndrome (BBS) is a pleiotropic autosomal recessive disorder associated with marked obesity, increased susceptibility to insulin resistance and type 2 diabetes. However, it is unknown whether the link between BBS and diabetes is indirect or direct. Adipogenesis and adipocyte function are regulated by hormonal stimuli, with insulin and insulin growth factor (IGF) playing an important role both in normal and impaired conditions. We have previously shown augmented transcript levels of BBS genes upon induction of adipogenesis. The aim of this study was to investigate the role of insulin in BBS. Through in vitro studies in adipocytes in which Bbs4 expression was either silenced (SiBbs4) or overexpressed (OEBbs4), we showed that insulin and IGF dose- and time-dependently decrease transcription and protein expression of BBS genes during adipogenesis. Silencing of Bbs4 expression in adipocytes significantly impaired and reduced glucose uptake. This effect was reversed by Bbs4 overexpression. Inhibition of PI 3-kinase resulted in upregulation of Bbs transcripts, suggesting that the PI3K pathway is involved in the regulation of these genes. In conclusion, we showed that insulin is a direct regulator of Bbs1, 2, 4 and 6. This hormonal regulation might indicate a metabolic link of these genes to obesity and metabolic syndrome. © 2017 IUBMB Life, 69(7):489-499, 2017.
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Affiliation(s)
- Netta Nahum
- Department of Biotechnology and Epidemiology, Ben-Gurion University, Beer-Sheva, Israel.,Department of Nutrition, School of Health Science, Ariel University, Ariel, Israel
| | - Efrat Forti
- Department of Biotechnology and Epidemiology, Ben-Gurion University, Beer-Sheva, Israel
| | - Olga Aksanov
- Department of Biotechnology and Epidemiology, Ben-Gurion University, Beer-Sheva, Israel
| | - Ruth Birk
- Department of Nutrition, School of Health Science, Ariel University, Ariel, Israel
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Tyagi N, Birk R, Owen D, Bajaj A. 36: A retrospective audit of the complication and success rates of CT-guided lung biopsies performed within Leicester Glenfield Hospital. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30086-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Salem H, Rosenfeld T, Altarescu G, Grisaru-Granovsky S, Birk R. Maternal and neonatal leptin and leptin receptor polymorphisms associated with preterm birth. Gene 2016; 591:209-213. [DOI: 10.1016/j.gene.2016.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/23/2016] [Accepted: 07/05/2016] [Indexed: 12/25/2022]
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Danielpur L, Sohn YS, Karmi O, Fogel C, Zinger A, Abu-Libdeh A, Israeli T, Riahi Y, Pappo O, Birk R, Zangen DH, Mittler R, Cabantchik ZI, Cerasi E, Nechushtai R, Leibowitz G. GLP-1-RA Corrects Mitochondrial Labile Iron Accumulation and Improves β-Cell Function in Type 2 Wolfram Syndrome. J Clin Endocrinol Metab 2016; 101:3592-3599. [PMID: 27459537 DOI: 10.1210/jc.2016-2240] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Type 2 Wolfram syndrome (T2-WFS) is a neuronal and β-cell degenerative disorder caused by mutations in the CISD2 gene. The mechanisms underlying β-cell dysfunction in T2-WFS are not known, and treatments that effectively improve diabetes in this context are lacking. OBJECTIVE Unraveling the mechanisms of β-cell dysfunction in T2-WFS and the effects of treatment with GLP-1 receptor agonist (GLP-1-RA). DESIGN AND SETTING A case report and in vitro mechanistic studies. PATIENT AND METHODS We treated an insulin-dependent T2-WFS patient with the GLP-1-RA exenatide for 9 weeks. An iv glucose/glucagon/arginine stimulation test was performed off-drug before and after intervention. We generated a cellular model of T2-WFS by shRNA knockdown of CISD2 (nutrient-deprivation autophagy factor-1 [NAF-1]) in rat insulinoma cells and studied the mechanisms of β-cell dysfunction and the effects of GLP-1-RA. RESULTS Treatment with exenatide resulted in a 70% reduction in daily insulin dose with improved glycemic control, as well as an off-drug 7-fold increase in maximal insulin secretion. NAF-1 repression in INS-1 cells decreased insulin content and glucose-stimulated insulin secretion, while maintaining the response to cAMP, and enhanced the accumulation of labile iron and reactive oxygen species in mitochondria. Remarkably, treatment with GLP-1-RA and/or the iron chelator deferiprone reversed these defects. CONCLUSION NAF-1 deficiency leads to mitochondrial labile iron accumulation and oxidative stress, which may contribute to β-cell dysfunction in T2-WFS. Treatment with GLP-1-RA and/or iron chelation improves mitochondrial function and restores β-cell function. Treatment with GLP-1-RA, probably aided by iron chelation, should be considered in WFS and other forms of diabetes associated with iron dysregulation.
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Affiliation(s)
- Liron Danielpur
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Yang-Sung Sohn
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Ola Karmi
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Chen Fogel
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Adar Zinger
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Abdulsalam Abu-Libdeh
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Tal Israeli
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Yael Riahi
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Orit Pappo
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Ruth Birk
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - David H Zangen
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Ron Mittler
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Zvi-Ioav Cabantchik
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Erol Cerasi
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Rachel Nechushtai
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
| | - Gil Leibowitz
- Endocrinology and Metabolism Service (L.D., C.F., T.I., Y.R., E.C., G.L.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; The Alexander Silberman Life Science Institute and the Wolfson Centre for Applied Structural Biology (Y.-S.S., O.K., Z.-I.C., R.N.), Hebrew University of Jerusalem, Edmond J. Safra Campus at Givat Ram, Jerusalem 9190401, Israel; Department of Nutrition (C.F., R.B.), Faculty of Health Sciences, Ariel University, Ariel 40700, Israel; Gastroenterology Service (A.Z.), Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Makassed Islamic Hospital (A.A.-L.), Pediatric Department, Division of Pediatric Endocrinology, Mount of Olives 19482, Jerusalem; Department of Pathology (O.P.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; Division of Pediatric Endocrinology (D.H.Z.), Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel; and BioDiscovery Institute and Department of Biological Sciences (R.M.), University of North Texas, Denton, Texas 76203
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Danino H, Ben-Dror K, Birk R. Exocrine pancreas ER stress is differentially induced by different fatty acids. Exp Cell Res 2015; 339:397-406. [DOI: 10.1016/j.yexcr.2015.09.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 09/26/2015] [Accepted: 09/29/2015] [Indexed: 12/13/2022]
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Banting LK, Pushkarev VP, Cieszczyk P, Zarebska A, Maciejewska-Karlowska A, Sawczuk MA, Leońska-Duniec A, Dyatlov DA, Orekhov EF, Degtyarev AV, Pushkareva YE, Yan X, Birk R, Eynon N. Elite athletes' genetic predisposition for altered risk of complex metabolic traits. BMC Genomics 2015; 16:25. [PMID: 25612568 PMCID: PMC4320608 DOI: 10.1186/s12864-014-1199-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 12/22/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Genetic variants may predispose humans to elevated risk of common metabolic morbidities such as obesity and Type 2 Diabetes (T2D). Some of these variants have also been shown to influence elite athletic performance and the response to exercise training. We compared the genotype distribution of five genetic Single Nucleotide Polymorphisms (SNPs) known to be associated with obesity and obesity co-morbidities (IGF2BP2 rs4402960, LPL rs320, LPL rs328, KCJN rs5219, and MTHFR rs1801133) between athletes (all male, n = 461; endurance athletes n = 254, sprint/power athletes n = 207), and controls (all male, n = 544) in Polish and Russian samples. We also examined the association between these SNPs and the athletes' competition level ('elite' and 'national' level). Genotypes were analysed by Single-Base Extension and Real-Time PCR. Multinomial logistic regression analyses were conducted to assess the association between genotypes and athletic status/competition level. RESULTS IGF2BP2 rs4402960 and LPL rs320 were significantly associated with athletic status; sprint/power athletes were twice more likely to have the IGF2BP2 rs4402960 risk (T) allele compared to endurance athletes (OR = 2.11, 95% CI = 1.03-4.30, P <0.041), and non-athletic controls were significantly less likely to have the T allele compared to sprint/power athletes (OR = 0.62, 95% CI =0.43-0.89, P <0.0009). The control group was significantly more likely to have the LPL rs320 risk (G) allele compared to endurance athletes (OR = 1.26, 95% CI = 1.05-1.52, P <0.013). Hence, endurance athletes were the "protected" group being significantly (p < 0.05) less likely to have the risk allele compared to sprint/power athletes (IGF2BP2 rs4402960) and significantly (p < 0.05) less likely to have the risk allele compared to controls (LPL rs320). The other 3 SNPs did not show significant differences between the study groups. CONCLUSIONS Male endurance athletes are less likely to have the metabolic risk alleles of IGF2BP2 rs4402960 and LPL rs320, compared to sprint/power athletes and controls, respectively. These results suggest that some SNPs across the human genome have a dual effect and may predispose endurance athletes to reduced risk of developing metabolic morbidities, whereas sprint/power athletes might be predisposed to elevated risk.
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Affiliation(s)
- Lauren K Banting
- Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia, , VIC, 8001.
| | | | - Pawel Cieszczyk
- University of Szczecin, Department of Physical Culture and Health Promotion, Szczecin, Poland.
| | - Aleksandra Zarebska
- Academy of Physical Education and Sport, Department of Sport Education, Gdansk, Poland.
| | | | - M-Arek Sawczuk
- University of Szczecin, Department of Physical Culture and Health Promotion, Szczecin, Poland.
| | - Agata Leońska-Duniec
- University of Szczecin, Department of Physical Culture and Health Promotion, Szczecin, Poland.
| | | | | | | | | | - Xu Yan
- Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia, , VIC, 8001.
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Melbourne, Australia.
| | - Ruth Birk
- Department of Nutrition, Faculty of Health Sciences, Ariel University, Ariel, Israel.
| | - Nir Eynon
- Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia, , VIC, 8001.
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Melbourne, Australia.
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Bachar A, Hermoni D, Livshits G, Birk R. Late successful weight reduction and maintenance among overweight and obese adults--a two-year retrospective study. Diabetes Res Clin Pract 2014; 106:511-21. [PMID: 25458338 DOI: 10.1016/j.diabres.2014.09.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 07/27/2014] [Accepted: 09/14/2014] [Indexed: 10/24/2022]
Abstract
AIMS Our purpose was to identify those factors associated with successful late weight reduction and maintenance among overweight and obese adults who failed to achieve initial weight reduction success. METHODS Medical computerized files of 5254 participants, who failed to achieve ≥ 5% weight reduction after an initial 6-month period, were retrospectively analyzed to identify predictors associated with late successful weight reduction and maintenance (≥ 5% during the first and second years, respectively). Over 40 independent variables were analyzed. The main outcome was the percentage of weight change. RESULTS Significant predictors of late success in weight reduction were as follows: more visits to a dietitian, higher baseline BMI, and any initial weight reduction (0-5%) (OR=3.69, compared with participants who initially gained weight). The use of insulin (OR=0.499) and the presence of hypertension (OR=0.75) were significantly correlated with failure to reduce weight. Predictors of late maintenance were as follows: more visits to a dietitian, higher baseline BMI, any initial weight reduction, a younger age, not being treated with insulin (OR=0.316), and more weighings (OR=1.68). CONCLUSIONS A substantial sub-group of obese and overweight patients was able to reduce their weight at a slower rate than the defined successful time of 6 months. Significant specific predictors were identified. Diabetic and hypertensive patients are at a significantly higher risk of failure to reduce and maintain weight. Using regression models, we calculated the probability of successful late weight reduction. This calculation could serve as a clinical tool for a professional team.
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Affiliation(s)
- A Bachar
- Human Population Biology Research Unit, Department of Anatomy and Anthropology, Tel Aviv University, Tel Aviv, Israel; Sharon-Shomron District, Clalit Health Services, Netanya, Israel
| | - D Hermoni
- Department of Family Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sharon-Shomron District, Clalit Health Services, Netanya, Israel.
| | - G Livshits
- Human Population Biology Research Unit, Department of Anatomy and Anthropology, Tel Aviv University, Tel Aviv, Israel
| | - R Birk
- Department of Nutrition, Faculty of Health Science, Ariel University, Ariel, Israel.
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Eynon N, Nasibulina ES, Banting LK, Cieszczyk P, Maciejewska-Karlowska A, Sawczuk M, Bondareva EA, Shagimardanova RR, Raz M, Sharon Y, Williams AG, Ahmetov II, Lucia A, Birk R. The FTO A/T polymorphism and elite athletic performance: a study involving three groups of European athletes. PLoS One 2013; 8:e60570. [PMID: 23573268 PMCID: PMC3616005 DOI: 10.1371/journal.pone.0060570] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 02/28/2013] [Indexed: 12/13/2022] Open
Abstract
Objective The FTO A/T polymorphism (rs9939609) is a strong candidate to influence obesity-related traits. Elite athletes from many different sporting disciplines are characterized by low body fat. Therefore, the aim of this study was to assess whether athletic status is associated with the FTO A/T polymorphism. Subjects and Methods A large cohort of European Caucasians from Poland, Russia and Spain were tested to examine the association between FTO A/T polymorphism (rs9939609) and athletic status. A total of 551 athletes were divided by type of sport (endurance athletes, n = 266 vs. sprint/power athletes, n = 285) as well as by level of competition (elite-level vs. national-level). The control group consisted of 1,416 ethnically-matched, non-athletic participants, all Europeans. Multinomial logistic regression analyses were conducted to assess the association between FTO A/T genotypes and athletic status/competition level. Results There were no significantly greater/lesser odds of harbouring any type of genotype when comparing across athletic status (endurance athletes, sprint/power athletes or control participants). These effects were observed after controlling for sex and nationality. Furthermore, no significantly greater/lesser odds ratios were observed for any of the genotypes in respect to the level of competition (elite-level vs. national-level). Conclusion The FTO A/T polymorphism is not associated with elite athletic status in the largest group of elite athletes studied to date. Large collaborations and data sharing between researchers, as presented here, are strongly recommended to enhance the research in the field of exercise genomics.
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Affiliation(s)
- Nir Eynon
- School of Sports and Exercise Sciences, Victoria University, Melbourne, Australia.
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Eynon N, Ruiz JR, Bishop DJ, Santiago C, Gómez-Gallego F, Lucia A, Birk R. The rs12594956 polymorphism in the NRF-2 gene is associated with top-level Spanish athlete's performance status. J Sci Med Sport 2013; 16:135-9. [DOI: 10.1016/j.jsams.2012.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 05/09/2012] [Accepted: 05/19/2012] [Indexed: 10/28/2022]
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Eynon N, Ruiz J, Yvert T, Santiago C, Gómez-Gallego F, Lucia A, Birk R. The C Allele in NOS3 -786 T/C Polymorphism is Associated with Elite Soccer Player's Status. Int J Sports Med 2012; 33:521-4. [DOI: 10.1055/s-0032-1306337] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- N. Eynon
- Institute of Sports Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia
| | - J. Ruiz
- Department of Biosciences and Nutrition, Karolinska Institutet, Unit for Preventive Nutrition, Huddinge, Sweden
- Department of Physical Education and Sport, School of Sport Sciences, University of Granada, Spain
| | - T. Yvert
- Physiology, Universidad Europea de Madrid, Madrid, Spain
| | - C. Santiago
- Physiology, Universidad Europea de Madrid, Madrid, Spain
| | | | - A. Lucia
- Physiology, Universidad Europea de Madrid, Madrid, Spain
| | - R. Birk
- Department of Nutrition, School of Health Sciences, Ariel University Center, Ariel, Israel
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Eynon N, Morán M, Birk R, Lucia A. The champions' mitochondria: is it genetically determined? A review on mitochondrial DNA and elite athletic performance. Physiol Genomics 2011; 43:789-98. [DOI: 10.1152/physiolgenomics.00029.2011] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aerobic ATP generation by the mitochondrial respiratory oxidative phosphorylation system (OXPHOS) is a vital metabolic process for endurance exercise. Notably, mitochondrial DNA (mtDNA) codifies 13 of the 83 polypeptides implied in the respiratory chain. As such, there is a strong rationale for identifying an association between mtDNA variants and “aerobic” (endurance) exercise phenotypes. The aim of this review is to summarize current knowledge on the association between mtDNA, nuclear genes involved in mitochondriogenesis, and elite endurance athletic status. Several studies in nonathletic people have demonstrated an association between certain mtDNA lineages and aerobic performance, characterized by maximal oxygen uptake (V̇o2max). Whether mtDNA haplogroups are also associated with the status of being an elite endurance athlete is more controversial, with differences between studies arising from the different ethnic backgrounds of the athletic cohorts (Caucasian of mixed geographic origin, Asiatic, or East African).
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Affiliation(s)
- Nir Eynon
- Faculty of Health Sciences, Department of Nutrition, Ariel University Center, Israel; and
| | - María Morán
- Centro de Investigación Hospital 12 de Octubre and CIBERER and
| | - Ruth Birk
- Faculty of Health Sciences, Department of Nutrition, Ariel University Center, Israel; and
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Eynon N, Birk R, Meckel Y, Lucia A, Nemet D, Eliakim A. Physiological variables and mitochondrial-related genotypes of an athlete who excels in both short and long-distance running. Mitochondrion 2011; 11:774-7. [PMID: 21651994 DOI: 10.1016/j.mito.2011.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Revised: 04/30/2011] [Accepted: 05/25/2011] [Indexed: 10/18/2022]
Abstract
We report the athletic, physiological and mitochondrial-related genomic data of an Israeli endurance runner. He is holding the Israeli record in 10,000, 5000, 1500 and 800 m run, along with being one of the best Israeli 400 m runners. We tested the ACTN3 R577X, and six polymorphisms in the PPARGC1A-NRF-TFAM pathway genes. The case athlete was heterozygous for the ACTN3 R577X variation and had five out of six 'endurance-oriented' genotypes, scoring significantly high in endurance 'optimal' genotype profile. In conclusion, we suggest that the case athlete is favoured by polygenic profile that is more suitable for mitochondrial biogenesis, regardless of his good phenotypic accomplishments in short-term running events.
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Affiliation(s)
- Nir Eynon
- Department of Nutritional Sciences, School of Health Sciences, Ariel University Center, Israel.
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Abstract
There is compelling evidence that genetic factors influence several phenotype traits related to physical performance and training response as well as to elite athletic status. Previous case-control studies showed that ∼20 genetic variants seem to be associated with elite endurance athletic status. The present review aims to introduce novel methodological approaches in the field of sports genetics research, which can be applied in the near future to analyse the genotype profile associated with elite athletic status. These include genotype-phenotype association studies using gene expression analysis, analysis of post-transcriptional factors, particularly microRNAs, genome-wide scan linkage or genome-wide association studies, and novel algorithm approaches, such as 'genotype scores'. Several gaps in the current body of knowledge have been identified including, among others: small sample size of most athletic cohorts, lack of corroboration with replication cohorts of different ethnic backgrounds (particularly, made up of non-Caucasian athletes), the need of research accounting for the potential role of epigenetics in elite athletic performance, and also the need for future models that take into account the association between athletic status and complex gene-gene and gene-environment interactions. Some recommendations are provided to minimize research limitations in the field of sport genetics.
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Affiliation(s)
- Nir Eynon
- Department of Nutrition, Faculty of Health Sciences, Ariel University Center, Israel.
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Affiliation(s)
- Nir Eynon
- Department of Nutrition, School of Health Sciences, Ariel University Center, Israel
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Peleg R, Luba A, Eliakim A, Israeli-Shani L, Manor E, Birk R, Parvari R. McCune-Albright syndrome in a discordant monozygotic twin. Isr Med Assoc J 2009; 11:343-347. [PMID: 19697584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
BACKGROUND McCune-Albright syndrome is a sporadic disorder characterized by polystotic fibrous dysplasia, pigmented patches of skin, and endocrinological abnormalities. OBJECTIVES To compare the genetic characteristics of the GNAS1 gene in a monozygotic pair of twins, one of whom was diagnosed with MAS while the other had no indication of the syndrome. METHODS We performed a molecular analysis of the GNAS1 gene in DNA extracted from peripheral blood cells and quantification of mRNA extracted from lymphoblastoid cells from both twins by quantitative real-time polymerase chain reaction. RESULTS Monozygosity of the twins was confirmed by typing them to four highly polymorphic microsatellites. Molecular analysis of the GNAS1 gene extracted from both twins did not reveal the cause of this discordance. CONCLUSIONS It is possible that the exact molecular mechanism for the MAS discordance can only be determined by sampling affected tissues.
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Affiliation(s)
- Roni Peleg
- Department of Family Medicine, Ben-Gurion University of the Negev, Beer Sheva, Israel.
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Birk R, Vernon J. Accidental use of glucose solution in an arterial cannula flush system. Anaesthesia 2007; 62:969. [PMID: 17697236 DOI: 10.1111/j.1365-2044.2007.05239.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kaput J, Ordovas JM, Ferguson L, van Ommen B, Rodriguez RL, Allen L, Ames BN, Dawson K, German B, Krauss R, Malyj W, Archer MC, Barnes S, Bartholomew A, Birk R, van Bladeren P, Bradford KJ, Brown KH, Caetano R, Castle D, Chadwick R, Clarke S, Clément K, Cooney CA, Corella D, Manica da Cruz IB, Daniel H, Duster T, Ebbesson SOE, Elliott R, Fairweather-Tait S, Felton J, Fenech M, Finley JW, Fogg-Johnson N, Gill-Garrison R, Gibney MJ, Gillies PJ, Gustafsson JA, Hartman JL, He L, Hwang JK, Jais JP, Jang Y, Joost H, Junien C, Kanter M, Kibbe WA, Koletzko B, Korf BR, Kornman K, Krempin DW, Langin D, Lauren DR, Ho Lee J, Leveille GA, Lin SJ, Mathers J, Mayne M, McNabb W, Milner JA, Morgan P, Muller M, Nikolsky Y, van der Ouderaa F, Park T, Pensel N, Perez-Jimenez F, Poutanen K, Roberts M, Saris WHM, Schuster G, Shelling AN, Simopoulos AP, Southon S, Tai ES, Towne B, Trayhurn P, Uauy R, Visek WJ, Warden C, Weiss R, Wiencke J, Winkler J, Wolff GL, Zhao-Wilson X, Zucker JD. The case for strategic international alliances to harness nutritional genomics for public and personal health. Br J Nutr 2005; 94:623-32. [PMID: 16277761 DOI: 10.1079/bjn20051585] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Nutrigenomics is the study of how constituents of the diet interact with genes, and their products, to alter phenotype and, conversely, how genes and their products metabolise these constituents into nutrients, antinutrients, and bioactive compounds. Results from molecular and genetic epidemiological studies indicate that dietary unbalance can alter gene-nutrient interactions in ways that increase the risk of developing chronic disease. The interplay of human genetic variation and environmental factors will make identifying causative genes and nutrients a formidable, but not intractable, challenge. We provide specific recommendations for how to best meet this challenge and discuss the need for new methodologies and the use of comprehensive analyses of nutrient-genotype interactions involving large and diverse populations. The objective of the present paper is to stimulate discourse and collaboration among nutrigenomic researchers and stakeholders, a process that will lead to an increase in global health and wellness by reducing health disparities in developed and developing countries.
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Affiliation(s)
- Jim Kaput
- Center of Excellence in Nutritional Genomics, University of California, Davis, CA 95616, USA.
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Birk R, Burstein E, Wiznitzer A. Placental angiopoietin-1 and angiopoietin-2 expression and correlation with birth weight in twins. Am J Obstet Gynecol 2003. [DOI: 10.1016/j.ajog.2003.10.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Goerdt S, Politz O, Schledzewski K, Birk R, Gratchev A, Guillot P, Hakiy N, Klemke CD, Dippel E, Kodelja V, Orfanos CE. Alternative versus classical activation of macrophages. Pathobiology 2000; 67:222-6. [PMID: 10725788 DOI: 10.1159/000028096] [Citation(s) in RCA: 243] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In parallel to the Th1/Th2 paradigm, antigen-presenting cells (APC) are divided into classically activated APC (dendritic cells/effector macrophages) and alternatively activated APC (IL-4-induced, alternatively activated macrophages/IL-10-induced, immature dendritic cells). Alternatively activated APC share a special molecular repertoire including receptors of innate immunity with broad specificity for foreign antigen and anti-inflammatory cytokines such as IL-1Ra and alternative macrophage activation-associated CC-chemokine-1. Alternatively activated APC mediated tolerance and downregulated inflammation. Abuse of alternatively activated APC in support of infectious susceptibility or tumor immune escape is counteracted by the classical pathway. Thus, classically and alternatively activated APC secure the balance between proinflammatory and anti-inflammatory immune reactions.
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Affiliation(s)
- S Goerdt
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Benjamin Franklin, Freie Universität Berlin, Germany.
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