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19 11月 2019

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Author : 伤口世界

医疗特长：大面积烧伤救治；特殊烧伤治疗，包括电烧伤、化学烧伤、放射性损伤等；瘢痕疙瘩、增生性瘢痕、浅表性瘢痕综合治疗；慢性溃疡修复，包括糖尿病溃疡、静脉性溃疡、褥疮、自身免疫性皮肤软组织溃疡等；各类色素性、血管性皮肤疾病激光治疗。

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Racial/ethnic and gender disparity in the severity of NAFLD among people with diabetes or prediabetes 2026-03-09 00:00

Magda Shaheen1 *, Katrina M. Schrode1 , Marielle Tedlos 1 , Deyu Pan1 , Sonia M. Najjar 2 and Theodore C. Friedman1

1 Charles R. Drew University, Los Angeles, CA, United States, 2 Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, United States

Aim: Non-alcoholic fatty liver disease (NAFLD) exhibits a racial disparity. We examined the prevalence and the association between race, gender, and NAFLD among prediabetes and diabetes populations among adults in the United States.

Methods: We analyzed data for 3,190 individuals ≥18 years old from the National Health and Nutrition Examination Survey (NHANES) 2017-2018. NAFLD was diagnosed by FibroScan ® using controlled attenuation parameter (CAP) values: S0 (none) < 238, S1 (mild) = 238-259, S2 (moderate) = 260-290, S3 (severe) > 290. Data were analyzed using Chi-square test and multinomial logistic regression, adjusting for confounding variables and considering the design and sample

Results: Of the 3,190 subjects, the prevalence of NAFLD was 82.6%, 56.4%, and 30.5% (p < 0.0001) among diabetes, prediabetes and normoglycemia populations respectively. Mexican American males with prediabetes or diabetes had the highest prevalence of severe NAFLD relative to other racial/ethnic groups (p < 0.05). In the adjusted model, among the total, prediabetes, and diabetes populations, a one unit increase in HbA1c was associated with higher odds of severe NAFLD [adjusted odds ratio (AOR) = 1.8, 95% confidence level (CI) = 1.4-2.3, p < 0.0001; AOR = 2.2, 95% CI = 1.1-4.4, p = 0.033; and AOR = 1.5, 95% CI = 1.1-1.9, p = 0.003 respectively].

Conclusion: We found that prediabetes and diabetes populations had a high prevalence and higher odds of NAFLD relative to the normoglycemic population and HbA1c is an independent predictor of NAFLD severity in prediabetes and diabetes populations. Healthcare providers should screen prediabetes and diabetes populations for early detection of NAFLD and initiate treatments including lifestyle modification to prevent the progression to non-alcoholic steatohepatitis or liver cancer.

KEYWORDS

NAFLD severity, prediabetes, diabetes, NHANES 2017-2018, race/ethnicity, gender
Blood oxygen saturation is lower in persons with pre-diabetes and screen-detected diabetes compared with non-diabetic individuals: A population-based study of the Lolland-Falster Health Study cohort 2026-03-07 00:00

Jens Christian Laursen1*, Randi Jepsen2 , Neda Esmailzadeh Bruun-Rasmussen2 , Marie Frimodt-Møller1 , Marit Eika Jørgensen3 , Peter Rossing1,4 and Christian Stevns Hansen1

1 Complications Research, Steno Diabetes Center Copenhagen, Herlev, Denmark,

2Center for Epidemiological Research, Nykøbing Falster Hospital, Nykøbing Falster, Denmark,

3Steno Diabetes Center Greenland, Nuuk, Greenland, 4Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

Aims: Low blood oxygen saturation is associated with increased mortality and persons with diabetes have sub-clinical hypoxemia. We aimed to confirm the presence of sub-clinical hypoxemia in pre-diabetes, screen-detected diabetes and known diabetes.

Methods: Pre-diabetes was defined as hemoglobin A1C (HbA1C) ≥ 42 mmol/mol and <48 mmol/mol; known diabetes as history or treatment of diabetes; screen-detected diabetes as no history or treatment of diabetes and HbA1C ≥ 48 mmol/mol. Blood oxygen saturation was measured with pulse oximetry. Urine albumin-to creatinine ratio (UACR) was measured on a single spot urine.

Results: The study included 829 adults (≥18 years) with diabetes (713 (86%) with known diabetes; 116 (14%) with screen-detected diabetes) and 12,747 without diabetes (11,981 (94%) healthy controls; 766 (6%) with pre-diabetes). Mean (95% CI) blood oxygen saturation was 96.3% (96.3% to 96.4%) in diabetes which was lower than in non-diabetes [97.3% (97.2–97.3%)] after adjustment for age, gender, and smoking (p < 0.001), but significance was lost after adjustment for BMI (p = 0.25). Sub-groups with pre-diabetes and screen-detected diabetes had lower blood oxygen saturations than healthy controls (p-values < 0.01). Lower blood oxygen saturation was associated with higher UACR.

Conclusions: Persons with pre-diabetes and screen-detected diabetes have sub-clinical hypoxemia, which is associated with albuminuria.

KEYWORDS

hypoxia, microvascular complications, albuminuria, type 2 diabetes, pre-diabetes
Non-invasive type 2 diabetes risk scores do not identify diabetes when the cause is β-cell failure: The Africans in America study 2026-03-05 00:00

Annemarie Wentzel1,2,3*, Arielle C. Patterson1 , M. Grace Duhuze Karera1,4,5, Zoe C. Waldman1 , Blayne R. Schenk1 , Christopher W. DuBose1 , Anne E. Sumner1,4 and Margrethe F. Horlyck-Romanovsky1,6*

1 Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States,

2 Hypertension in Africa Research Team, North-West University, Potchefstroom, South Africa, 3South African Medical Research Council, Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa, 4National Institute of Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD, United States, 5 Institute of Global Health Equity Research, University of Global Health Equity, Kigali, Rwanda, 6Department of Health and Nutrition Sciences, Brooklyn College, City University of New York, New York, NY, United States

Background: Emerging data suggests that in sub-Saharan Africa β-cell-failure in the absence of obesity is a frequent cause of type 2 diabetes (diabetes). Traditional diabetes risk scores assume that obesity-linked insulin resistance is the primary cause of diabetes. Hence, it is unknown whether diabetes risk scores detect undiagnosed diabetes when the cause is β-cell-failure.

Aims: In 528 African-born Blacks living in the United States [age 38 ± 10 (Mean ± SE); 64% male; BMI 28 ± 5 kg/m2 ] we determined the: (1) prevalence of previously undiagnosed diabetes, (2) prevalence of diabetes due to β-cell-failure vs. insulin resistance; and (3) the ability of six diabetes risk scores [Cambridge, Finnish Diabetes Risk Score (FINDRISC), Kuwaiti, Omani, Rotterdam, and SUNSET] to detect previously undiagnosed diabetes due to either β-cell-failure or insulin resistance.

Methods: Diabetes was diagnosed by glucose criteria of the OGTT and/or HbA1c ≥ 6.5%. Insulin resistance was defined by the lowest quartile of the Matsuda index (≤2.04). Diabetes due to β-cell-failure required diagnosis of diabetes in the absence of insulin resistance. Demographics, body mass index (BMI), waist circumference, visceral adipose tissue (VAT), family medical history, smoking status, blood pressure, antihypertensive medication, and blood lipid profiles were obtained. Area under the Receiver Operator Characteristics Curve (AROC) estimated sensitivity and specificity of each continuous score. AROC criteria were: Outstanding: >0.90; Excellent: 0.80–0.89; Acceptable: 0.70–0.79; Poor: 0.50–0.69; and No Discrimination: 0.50.

Results: Prevalence of diabetes was 9% (46/528). Of the diabetes cases, β-cell-failure occurred in 43% (20/46) and insulin resistance in 57% (26/46). The β-cell-failure group had lower BMI (27 ± 4 vs. 31 ± 5 kg/m2 P < 0.001), lower waist circumference (91 ± 10 vs. 101 ± 10cm P < 0.001) and lower VAT (119 ± 65 vs. 183 ± 63 cm3 , P < 0.001). Scores had indiscriminate or poor detection of diabetes due to β-cell-failure (FINDRISC AROC = 0.49 to Cambridge AROC = 0.62). Scores showed poor to excellent detection of diabetes due to insulin resistance, (Cambridge AROC = 0.69, to Kuwaiti AROC = 0.81).

Conclusions: At a prevalence of 43%, β-cell-failure accounted for nearly half of the cases of diabetes. All six diabetes risk scores failed to detect previously undiagnosed diabetes due to β-cell-failure while effectively identifyingdiabetes when the etiology was insulin resistance. Diabetes risk scores whichcorrectly classify diabetes due to B-cell-failure are urgently needed.

KEYWORDS

type 2 diabetes, risk score, African (Black) diaspora, β-cell failure, insulin resistance, diabetes screening

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

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