Peripheral and Autonomic Neuropathy in South Asians and White Caucasians with Type 2 Diabetes Mellitus: Possible Explanations for Epidemiological Differences.

Publisher: Hindawi Limited Country of Publication: England NLM ID: 101605237 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2314-6753 (Electronic) NLM ISO Abbreviation: J Diabetes Res Subsets: MEDLINE

Publication: <2019>-: London, United Kingdom : Hindawi Limited
Original Publication: Nasr City, Cairo : Hindawi Publishing Corporation, [2013]-

Asian People/*statistics & numerical data ; Autonomic Nervous System Diseases/*ethnology ; Diabetes Mellitus, Type 2/*epidemiology ; Diabetic Neuropathies/*ethnology ; Obesity/*epidemiology ; White People/*statistics & numerical data; Adult ; Aged ; Asia, Western ; Autonomic Nervous System Diseases/epidemiology ; Autonomic Nervous System Diseases/etiology ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/complications ; Diabetic Neuropathies/epidemiology ; Diabetic Neuropathies/etiology ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Peripheral Nervous System Diseases/epidemiology ; Peripheral Nervous System Diseases/ethnology ; Peripheral Nervous System Diseases/etiology ; Prevalence ; United Kingdom/epidemiology

Objectives. To compare the prevalence of diabetic peripheral neuropathy (DPN) and that of cardiac autonomic neuropathy (CAN) between South Asians and White Caucasians with type 2 diabetes and to explore reasons for observed differences. Methods. A cross-sectional study of casually selected South Asian and White Caucasian adults attending a hospital-based diabetes clinic in the UK. DPN and CAN were assessed using the Michigan Neuropathy Screening Instrument (MNSI) and heart rate variability testing, respectively. Results. Patients ( n = 266) were recruited (47.4% South Asians). DPN was more common in White Caucasians compared to South Asians (54.3% versus 38.1%, p = 0.008). Foot insensitivity as assessed by 10 g monofilament perception was more common in White Caucasians (43.9% versus 23.8%, p = 0.001). After adjustment for confounders, White Caucasians remained twice as likely to have DPN as South Asians, but the impact of ethnicity became nonsignificant after adjusting for adiposity measures or height. No difference in prevalence of standardized CAN test abnormalities was detected between ethnicities. Skin microvascular assessment demonstrated that South Asians had reduced heating flux but preserved acetylcholine response. Conclusions. South Asians with type 2 diabetes have fewer clinical signs of DPN compared to White Caucasians. Differences in adiposity (and its distribution) and height appear to explain these differences.

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CS-2013-13-029 United Kingdom DH_ Department of Health

Date Created: 20170415 Date Completed: 20180130 Latest Revision: 20221207

20221213

PMC5376938

10.1155/2017/1273789

28409160