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MA F, FA C, AJ N, AA S, IA PF, LJ C, PA G. Contribution of carbohydrate-related metabolism in Herpesvirus infections. CURRENT RESEARCH IN MICROBIAL SCIENCES 2023; 4:100192. [PMID: 37273578 PMCID: PMC10238445 DOI: 10.1016/j.crmicr.2023.100192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Human herpesviruses are enveloped viruses with double-stranded linear DNA genomes highly prevalent in the human population. These viruses are subdivided into three subfamilies, namely alphaherpesvirinae (herpes simplex virus type 1, HSV-1; herpes simplex virus type 2, HSV-2; and varicella-zoster virus, VZV), betaherpesvirinae (human cytomegalovirus, HCMV; human herpesvirus 6, HHV-6; and human herpesvirus 7, HHV-7) and gammaherpesvirinae (Epstein-Barr virus, EBV; and Kaposi's sarcoma-associated herpesvirus, KSHV). Besides encoding numerous molecular determinants to evade the host antiviral responses, these viruses also modulate cellular metabolic processes to promote their replication. Here, we review and discuss existing studies describing an interplay between carbohydrate metabolism and the replication cycle of herpesviruses, altogether highlighting potentially new molecular targets based on these interactions that could be used to block herpesvirus infections.
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Affiliation(s)
- Farías MA
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Cancino FA
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Navarro AJ
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Soto AA
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Pastén-Ferrada IA
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Carreño LJ
- Millennium Institute on Immunology and Immunotherapy, Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - González PA
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
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Goedecke JH, Mendham AE. Pathophysiology of type 2 diabetes in sub-Saharan Africans. Diabetologia 2022; 65:1967-1980. [PMID: 36166072 PMCID: PMC9630207 DOI: 10.1007/s00125-022-05795-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/12/2022] [Indexed: 01/11/2023]
Abstract
Sub-Saharan Africa (SSA) is the region with the highest projected rates of increase in type 2 diabetes (129% by 2045), which will exacerbate the already high prevalence of type 2 diabetes complications and comorbidities in SSA. In addition, SSA is grappling with poverty-related health problems and infectious diseases and is also undergoing the most rapid rates of urbanisation globally. These socioenvironmental and lifestyle factors may interact with genetic factors to alter the pathophysiological sequence leading to type 2 diabetes in sub-Saharan African populations. Indeed, current evidence from SSA and the diaspora suggests that the pathophysiology of type 2 diabetes in Black Africans is different from that in their European counterparts. Studies from the diaspora suggest that insulin clearance is the primary defect underlying the development of type 2 diabetes. We propose that, among Black Africans from SSA, hyperinsulinaemia due to a combination of both increased insulin secretion and reduced hepatic insulin clearance is the primary defect, which promotes obesity and insulin resistance, exacerbating the hyperinsulinaemia and eventually leading to beta cell failure and type 2 diabetes. Nonetheless, the current understanding of the pathogenesis of type 2 diabetes and the clinical guidelines for preventing and managing the disease are largely based on studies including participants of predominately White European ancestry. In this review, we summarise the existing knowledge base and data from the only non-pharmacological intervention that explores the pathophysiology of type 2 diabetes in SSA. We also highlight factors that may influence the pathogenesis of type 2 diabetes in SSA, such as social determinants, infectious diseases and genetic and epigenetic influences.
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Affiliation(s)
- Julia H Goedecke
- Biomedical Research and Innovation Platform and Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa.
- South African Medical Research Council/WITS Developmental Pathways for Health Research Unit (DPHRU), Department of Paediatrics, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
- Health through Physical Activity, Lifestyle and Sport Research Centre (HPALS), FIMS International Collaborating Centre of Sports Medicine, Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Amy E Mendham
- South African Medical Research Council/WITS Developmental Pathways for Health Research Unit (DPHRU), Department of Paediatrics, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Health through Physical Activity, Lifestyle and Sport Research Centre (HPALS), FIMS International Collaborating Centre of Sports Medicine, Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Lontchi-Yimagou E, Feutseu C, Kenmoe S, Djomkam Zune AL, Kinyuy Ekali SF, Nguewa JL, Choukem SP, Mbanya JC, Gautier JF, Sobngwi E. Non-autoimmune diabetes mellitus and the risk of virus infections: a systematic review and meta-analysis of case-control and cohort studies. Sci Rep 2021; 11:8968. [PMID: 33903699 PMCID: PMC8076178 DOI: 10.1038/s41598-021-88598-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 04/12/2021] [Indexed: 02/02/2023] Open
Abstract
A significant number of studies invoked diabetes as a risk factor for virus infections, but the issue remains controversial. We aimed to examine whether non-autoimmune diabetes mellitus enhances the risk of virus infections compared with the risk in healthy individuals without non-autoimmune diabetes mellitus. In this systematic review and meta-analysis, we assessed case-control and cohort studies on the association between non-autoimmune diabetes and viruses. We searched PubMed, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, and Web of Science with no language restriction, to identify articles published until February 15, 2021. The main outcome assessment was the risk of virus infection in individuals with non-autoimmune diabetes. We used a random-effects model to pool individual studies and assessed heterogeneity (I2) using the χ2 test on Cochrane's Q statistic. This study is registered with PROSPERO, number CRD42019134142. Out of 3136 articles identified, we included 68 articles (90 studies, as the number of virus and or diabetes phenotype varied between included articles). The summary OR between non-autoimmune diabetes and virus infections risk were, 10.8(95% CI: 10.3-11.4; 1-study) for SARS-CoV-2; 3.6(95%CI: 2.7-4.9, I2 = 91.7%; 43-studies) for HCV; 2.7(95% CI: 1.3-5.4, I2 = 89.9%, 8-studies;) for HHV8; 2.1(95% CI: 1.7-2.5; 1-study) for H1N1 virus; 1.6(95% CI: 1.2-2.13, I2 = 98.3%, 27-studies) for HBV; 1.5(95% CI: 1.1-2.0; 1-study) for HSV1; 3.5(95% CI: 0.6-18.3 , I2 = 83.9%, 5-studies) for CMV; 2.9(95% CI: 1-8.7, 1-study) for TTV; 2.6(95% CI: 0.7-9.1, 1-study) for Parvovirus B19; 0.7(95% CI: 0.3-1.5 , 1-study) for coxsackie B virus; and 0.2(95% CI: 0-6.2; 1-study) for HGV. Our findings suggest that, non-autoimmune diabetes is associated with increased susceptibility to viruses especially SARS-CoV-2, HCV, HHV8, H1N1 virus, HBV and HSV1. Thus, these viruses deserve more attention from diabetes health-care providers, researchers, policy makers, and stakeholders for improved detection, overall proper management, and efficient control of viruses in people with non-autoimmune diabetes.
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Affiliation(s)
- Eric Lontchi-Yimagou
- grid.412661.60000 0001 2173 8504Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, 3851 Yaoundé, Cameroon
| | - Charly Feutseu
- grid.412661.60000 0001 2173 8504Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, 3851 Yaoundé, Cameroon
| | - Sebastien Kenmoe
- Department of Virology, Centre Pasteur of Cameroon, Yaoundé, Cameroon
| | - Alexandra Lindsey Djomkam Zune
- grid.29273.3d0000 0001 2288 3199Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
| | - Solange Fai Kinyuy Ekali
- grid.412661.60000 0001 2173 8504Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Jean Louis Nguewa
- grid.508487.60000 0004 7885 7602INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France ,grid.508487.60000 0004 7885 7602Assistance Publique-Hôpitaux de Paris, Lariboisière Hospital, Department of Diabetes, Clinical Investigation Centre (CIC-9504), University Paris-Diderot, Paris, France ,grid.508487.60000 0004 7885 7602Faculty of Medicine, University Paris-Diderot, Paris, France
| | - Siméon Pierre Choukem
- grid.8201.b0000 0001 0657 2358Department of Internal Medicine and Specialties, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon
| | - Jean Claude Mbanya
- grid.412661.60000 0001 2173 8504Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, 3851 Yaoundé, Cameroon ,grid.412661.60000 0001 2173 8504Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon ,grid.460723.40000 0004 0647 4688National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Jean Francois Gautier
- grid.508487.60000 0004 7885 7602INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France ,grid.508487.60000 0004 7885 7602Assistance Publique-Hôpitaux de Paris, Lariboisière Hospital, Department of Diabetes, Clinical Investigation Centre (CIC-9504), University Paris-Diderot, Paris, France ,grid.508487.60000 0004 7885 7602Faculty of Medicine, University Paris-Diderot, Paris, France
| | - Eugene Sobngwi
- grid.412661.60000 0001 2173 8504Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, 3851 Yaoundé, Cameroon ,grid.412661.60000 0001 2173 8504Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon ,grid.460723.40000 0004 0647 4688National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
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Drareni K, Ballaire R, Barilla S, Mathew MJ, Toubal A, Fan R, Liang N, Chollet C, Huang Z, Kondili M, Foufelle F, Soprani A, Roussel R, Gautier JF, Alzaid F, Treuter E, Venteclef N. GPS2 Deficiency Triggers Maladaptive White Adipose Tissue Expansion in Obesity via HIF1A Activation. Cell Rep 2019; 24:2957-2971.e6. [PMID: 30208320 PMCID: PMC6153369 DOI: 10.1016/j.celrep.2018.08.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/27/2018] [Accepted: 08/10/2018] [Indexed: 12/12/2022] Open
Abstract
Hypertrophic white adipose tissue (WAT) represents a maladaptive mechanism linked to the risk for developing type 2 diabetes in humans. However, the molecular events that predispose WAT to hypertrophy are poorly defined. Here, we demonstrate that adipocyte hypertrophy is triggered by loss of the corepressor GPS2 during obesity. Adipocyte-specific GPS2 deficiency in mice (GPS2 AKO) causes adipocyte hypertrophy, inflammation, and mitochondrial dysfunction during surplus energy. This phenotype is driven by HIF1A activation that orchestrates inadequate WAT remodeling and disrupts mitochondrial activity, which can be reversed by pharmacological or genetic HIF1A inhibition. Correlation analysis of gene expression in human adipose tissue reveals a negative relationship between GPS2 and HIF1A, adipocyte hypertrophy, and insulin resistance. We propose therefore that the obesity-associated loss of GPS2 in adipocytes predisposes for a maladaptive WAT expansion and a pro-diabetic status in mice and humans. Adipose-specific GPS2 deficiency predisposes for adipocyte hypertrophy Loss of GPS2 triggers transcriptional activation of HIF1A pathways Deregulation of GPS2-HIF1A interplay provokes disrupted mitochondrial activity GPS2 and HIF1A levels are negatively correlated in human adipose tissue
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Affiliation(s)
- Karima Drareni
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Raphaëlle Ballaire
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France; Inovarion, 75013 Paris, France
| | - Serena Barilla
- Karolinska Institutet, Department of Biosciences and Nutrition, Huddinge, Sweden
| | - Mano J Mathew
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Amine Toubal
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Rongrong Fan
- Karolinska Institutet, Department of Biosciences and Nutrition, Huddinge, Sweden
| | - Ning Liang
- Karolinska Institutet, Department of Biosciences and Nutrition, Huddinge, Sweden
| | - Catherine Chollet
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Zhiqiang Huang
- Karolinska Institutet, Department of Biosciences and Nutrition, Huddinge, Sweden
| | - Maria Kondili
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Fabienne Foufelle
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Antoine Soprani
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France; Clinique Geoffroy Saint-Hilaire, Ramsey General de Santé, Paris, France
| | - Ronan Roussel
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France; Diabetology, Endocrinology and Nutrition Department, DHU FIRE, Bichat Hospital, AP-HP, Paris, France; Faculty of Medicine, University Paris-Diderot, Paris, France
| | - Jean-François Gautier
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France; Assistance Publique-Hôpitaux de Paris, Lariboisière Hospital, Department of Diabetes, Clinical Investigation Centre (CIC-9504), University Paris-Diderot, Paris, France; Faculty of Medicine, University Paris-Diderot, Paris, France
| | - Fawaz Alzaid
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Eckardt Treuter
- Karolinska Institutet, Department of Biosciences and Nutrition, Huddinge, Sweden.
| | - Nicolas Venteclef
- INSERM, Cordeliers Research Centre, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, Paris, France.
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5
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Lontchi-Yimagou E, Legoff J, Nguewa JL, Boudou P, Balti EV, Noubiap JJ, Kamwa V, Atogho-Tiedeu B, Azabji-Kenfack M, Djahmeni EN, Etoa M, Lemdjo G, Balla V, Dehayem MY, Foufelle F, Mbanya JC, Gautier JF, Sobngwi E. Human herpesvirus 8 infection DNA positivity is associated with low insulin secretion: A case-control study in a sub-Saharan African population with diabetes. J Diabetes 2018; 10:866-873. [PMID: 29707905 DOI: 10.1111/1753-0407.12777] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/07/2018] [Accepted: 04/22/2018] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Viruses have been considered potential triggers for the development of diabetes. This study assessed insulin secretion and insulin sensitivity in human herpesvirus 8 (HHV8)-infected and uninfected sub-Saharan African people with diabetes. METHODS In all, 173 people with non-autoimmune diabetes were enrolled consecutively: 124 with type 2 diabetes mellitus (T2DM) and 49 with ketosis-prone diabetes (KPD) admitted in hyperglycemic crisis. Those with KPD were further subdivided into those with new-onset ketotic-phase KPD (n = 34) or non-ketotic phase KPD (n = 15). All participants were screened for HHV8-specific antibodies and genomic DNA. Blood samples were collected for analysis of fasting glucose, HbA1c, lipid profile, and C-peptide, with insulin resistance and secretion estimated by homeostasis model assessment. RESULTS Among the 173 diabetic participants, 88 (50.9%) were positive for HHV8 antibodies (Ac-HHV8+), including 15 (8.7%) positive for HHV8 DNA (DNA-HHV8+). The seroprevalence of HHV8 was similar between T2DM (55.6%) and KPD (61.2%) subjects. Of those with and without ketotic-phase KPD, 35.3% and 46.7% were Ac-HHV8+, respectively. Body mass index was significantly in lower DNA-HHV8+ than DNA-HHV8- subjects. Low-density lipoprotein and total cholesterol were significantly higher, but C-peptide and homeostatic model assessment of β-cell function (HOMA-β) were significantly lower in DNA-HHV8+ than DNA-HHV8- participants. After excluding DNA-HHV8+ participants, triglyceride concentrations were significantly higher in Ac-HHV8+ (n = 73) than Ac-HHV8- (n = 85) subjects. In contrast, HOMA-β was significantly higher among Ac-HHV8+ than Ac-HHV8- participants. CONCLUSIONS In the present study, HHV8 DNA positivity was associated with low insulin secretion in this sub-Saharan African diabetes population.
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Affiliation(s)
- Eric Lontchi-Yimagou
- Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, Yaoundé, Cameroon
| | - Jérôme Legoff
- Université Paris Diderot, Sorbonne Paris Cité, INSERM U941, Microbiology Laboratory, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | | | - Philippe Boudou
- Unit of Hormonal Biology, Department of Biochemistry, Saint-Louis University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Eric V Balti
- Diabetes Research Center, Brussels Free University - VUB, Brussels, Belgium
| | - Jean J Noubiap
- Department of Medicine, Groote Schuur Hospital and Universty of Cape Town, Cape Town, South Africa
| | - Vicky Kamwa
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Barbara Atogho-Tiedeu
- Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, Yaoundé, Cameroon
| | - Marcel Azabji-Kenfack
- Department of Physiological Sciences and Biochemistry, Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, Yaoundé, Cameroon
| | - Eric N Djahmeni
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Martine Etoa
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Gaelle Lemdjo
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Vanessa Balla
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | - Mesmin Y Dehayem
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
| | | | - Jean-Claude Mbanya
- Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, Yaoundé, Cameroon
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
- Department of Internal Medicine, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Eugene Sobngwi
- Laboratory for Molecular Medicine and Metabolism, Biotechnology Center, University of Yaoundé 1, Yaoundé, Cameroon
- National Obesity Centre, Yaoundé Central Hospital, Yaoundé, Cameroon
- Department of Internal Medicine, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon
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Innis-Whitehouse W, Wang X, Restrepo N, Salas C, Moreno K, Restrepo A, Keniry M. Kaposi sarcoma incidence in females is nearly four-fold higher in the Lower Rio Grande Valley compared to the Texas average. Cancer Treat Res Commun 2018; 16:45-52. [PMID: 31299002 DOI: 10.1016/j.ctarc.2018.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 06/09/2018] [Accepted: 06/11/2018] [Indexed: 12/17/2022]
Abstract
The Lower Rio Grande Valley (LRGV) is located on U.S.-Mexican border with a population that is 90% Hispanic [1]. Comprised of Hidalgo, Cameron, Starr and Willacy counties, this region has the highest poverty rate and one of the highest incidences of Type 2 diabetes in the United States [2-4]. Previous studies demonstrated a high prevalence of Human Herpes Virus 8 (HHV8) in the LRGV [5-7]. HHV8 infection has been causally linked to Kaposi Sarcoma (KS) [8]. Here, we retrospectively examine the incidence of KS in the LRGV in a set of HIV-negative Hispanic patients. Strikingly, the incidence of KS was higher in LRGV women compared to the Texas state average (nearly four-fold higher in McAllen-Edinburg-Pharr Metro Statistical Area). This unique profile aligns with the increased HHV8 prevalence in the LRGV, suggesting that HHV8 contributes to a high incidence of HIV-negative KS on the U.S.-Mexican border in Texas.
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Affiliation(s)
- Wendy Innis-Whitehouse
- School of Medicine, The University of Texas Rio Grande Valley, 1201 W. University Dr., Edinburg, TX 78539, USA.
| | - Xiaohui Wang
- School of Mathematical and Statistical Sciences, The University of Texas Rio Grande Valley, 1201 W. University Dr., Edinburg, TX 78539, USA.
| | - Nicolas Restrepo
- Department of Biology, The University of Texas Rio Grande Valley, 1201 W. University Dr., Edinburg, TX 78539, USA.
| | - Carlos Salas
- Department of Biology, The University of Texas Rio Grande Valley, 1201 W. University Dr., Edinburg, TX 78539, USA.
| | - Katia Moreno
- Texas Oncology, 1901 S. 2nd St., McAllen, TX 78503, USA.
| | | | - Megan Keniry
- Department of Biology, The University of Texas Rio Grande Valley, 1201 W. University Dr., Edinburg, TX 78539, USA.
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Vellanki P, Umpierrez GE. DIABETIC KETOACIDOSIS: A COMMON DEBUT OF DIABETES AMONG AFRICAN AMERICANS WITH TYPE 2 DIABETES. Endocr Pract 2017; 23:971-978. [PMID: 28534682 DOI: 10.4158/ep161679.ra] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE More than half of African Americans (AA) with a new diagnosis of diabetic ketoacidosis have clinical and metabolic features of type 2 diabetes during follow-up. This particular presentation of diabetes has been termed as ketosis-prone type 2 diabetes (KPDM) or atypical diabetes. METHODS We review the epidemiology, diagnosis, pathophysiology, and acute and long-term management of AA with KPDM and compare these similarities to patients with type 2 diabetes. RESULTS In contrast to the long-term insulin requirement of auto-immune type 1 diabetes, patients with KPDM are able to discontinue insulin after a few months of therapy and maintain acceptable glycemic control for many years on either diet or oral agents. Patients with KPDM have significant impairment of both insulin secretion and insulin action at presentation; however, at the time of near-normoglycemia remission, insulin secretion and action improve to levels similar to hyperglycemic patients with ketosis-resistant type 2 diabetes. In the long term, however, patients with KPDM have a decline in β-cell function similar to patients with type 2 diabetes. Recent studies indicate that treatment with metformin and dipeptidyl peptidase-4 inhibitors can prolong the period of near-normoglycemia remission for several years compared to placebo therapy. CONCLUSION KPDM is a unique but common presentation of newly diagnosed African Americans with type 2 diabetes. ABBREVIATIONS A(+/-) = auto-antibody positive/negative AA = African Americans DKA = diabetic ketoacidosis FFA = free fatty acids G6PD = glucose-6-phosphate dehydrogenase GAD-65 = 65-kDA glutamic acid decarboxylase HBA1c = glycated hemoglobin A1c HHV8 = human herpes virus 8 HLA = human leukocyte antigen KPDM = ketosis-prone type 2 diabetes.
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