ObjectiveTo describe the epidemiological characteristics and trend of pulmonary tuberculosis among the elderly in Shanghai from 2014 to 2023, to estimate the incidence between 2024‒2025, so as to provide references for optimizing the prevention and control strategies of pulmonary tuberculosis for elderly in Shanghai. MethodsData of pulmonary tuberculosis patients aged ≥60 years in Shanghai registered in the Tuberculosis Registration and Management System of Chinese Center for Disease Control and Prevention from 2014 to 2023 was derived to describe the demographic characteristics of the elderly patients with pulmonary tuberculosis, and to calculate the reported incidence rate and annual percentage change (APC) of pulmonary tuberculosis. The autoregressive integrated moving average (ARIMA) model was constructed using monthly reported incidence data from January 2014 to June 2023, and data from July to December in 2023 were used to validate the model and predict the reported incidence rate of pulmonary tuberculosis among elderly in 2024 and 2025. ResultsA total of 19 208 elderly pulmonary tuberculosis patients were registered and reported in Shanghai from 2014 to 2023, with an average annual reported incidence rate of 35.04/100 000. The reported incidence rate of pulmonary tuberculosis in elderly showed an overall decreasing trend, APC=-3.34% (t=-3.360,P=0.010). While, the proportion of elderly pulmonary tuberculosis patients showed a yearly increasing trend among the total registered and reported cases, APC=5.65% (t=10.820, P<0.001). The difference in the average annual reported incidence rate of pulmonary tuberculosis in elderly was statistically significant in different regions (χ²=31.762, P=0.007), with the central urban areas(33.23/100 000) being lower than that in suburban areas (36.46/100 000), and the annual decreasing rate was faster in central urban area, APC=-4.88% (t=-4.838, P<0.001) and -2.76% (t=-2.811, P=0.023), respectively. The incidence rate was significantly higher in males than that in females (χ²=514.395, P<0.001). Additionally, the difference in reported incidence rate was statistically significant among different age groups(χ²=119.751,P<0.001), among which patients aged ≥80 years had the highest average annual incidence rate (59.69/100 000), and those aged ≤60 years had the lowest average annual incidence rate (28.57/100 000). Compared with the non-residential permanent elderly population (47.68/100 000), the average annual incidence rate of pulmonary tuberculosis among the elderly with household registration in Shanghai was lower (33.82/100 000) (χ²=24.295, P<0.001). The ARIMA (0,0,1) (0,1,1) 12 model was used to predict the incidence rate of pulmonary tuberculosis among the elderly in Shanghai in 2024 and 2025, and which was predicted to be 37.41/100 000 and 35.92/100 000, respectively. ConclusionThe reported incidence rate of pulmonary tuberculosis among the elderly in Shanghai showed an overall yearly downward trend from 2014 to 2023, but its proportion in the total number of reported pulmonary tuberculosis cases increased year by year. Prevention and control efforts should still not be slackened and emphasis should be placed on male, suburban and non-residential permanent elderly populations.

OBJECTIVE: To investigate the clinicopathological features and differential diagnosis of male genital system lymphoma (MGSL). METHODS: We retrospectively analyzed the clinicopathological and immunophenotypic features and prognosis of 80 cases of MGSL. RESULTS: The onset age of the MGSL patients ranged from 4 to 85 (median 62) years old. All the cases showed non-specificity of the imaging features and clinical manifestations. MGSL was located mainly in the testis (n = 66), followed by the prostate (n = 7), epididymis (n = 3), scrotum (n = 3) and penile glans (n = 1). Diffused large B cell lymphoma (DLBCL) was the most common pathological type (n = 62), next came extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) (n = 7) and other rare types (n = 12). During the 1－112-month follow-up of 10 of the 19 patients, 1 died at 1 month after diagnosed with prostatic B-lymphoblastic lymphoma (B-LBL) and another 1 died at 50 months after diagnosed with testicular DLBCL. CONCLUSION MGSL is rare clinically, mainly of the DLBCL type pathologically, lacking specificity in clinical symptoms and imaging manifestation. The definite diagnosis of the malignancy depends on histopathology combined with related molecular examination and immunohistochemical labeling, and R-CHOP chemotherapy is the first choice for its treatment.
Humans ; Male ; Middle Aged ; Aged ; Retrospective Studies ; Adult ; Aged, 80 and over ; Young Adult ; Adolescent ; Child ; Child, Preschool ; Genital Neoplasms, Male/diagnosis* ; Prognosis ; Lymphoma, Large B-Cell, Diffuse/diagnosis* ; Lymphoma/diagnosis*

OBJECTIVE: To observe change in serum growth differentiation factor 11 (GDF11) and killer cell lectin-like receptor B1 (KLRB1), to construct a nomogram model for 28-day death in patients with septic shock, and to explore its predictive value. METHODS: A prospective observational study was conducted. The patients with septic shock admitted to the emergency intensive care unit (ICU) of Cangzhou Central Hospital from September 2023 to March 2025 were selected as the septic shock group, the patients with sepsis admitted to the emergency general ward during the same period were selected as the sepsis group, and healthy individuals undergoing physical examination during the same period were selected as the control group. On the day of hospital admission or physical examination for the research subjects, the levels of serum GDF11 and KLRB1 were detected by enzyme-linked immunosorbent assay (ELISA). The patients with septic shock were divided into survival and death groups based on their 28-day survival status. The patients' gender, age, past medical history, infection site, severity of illness, mechanical ventilation, blood purification, infection indicators, biochemical indicators, coagulation function indicators, and blood lactic acid (Lac) were collected. The clinical data of the patients with septic shock between the two groups with different prognoses were compared. Multivariate Logistic regression analysis was used to screen the risk factors for 28-day death in patients with septic shock, and bivariate Pearson correlation analysis was conducted. A nomogram model was constructed based on the risk factors for 28-day death in patients with septic shock. The discrimination and calibration of the nomogram model were evaluated using the receiver operator characteristic curve (ROC curve), Hosmer-Lemeshow goodness-of-fit test, and calibration curve. The clinical utility of the model was evaluated using clinical decision curve analysis (DCA). RESULTS: A total of 168 patients in the emergency ICU were enrolled in the septic shock group, 40 patients in the emergency general ward were enrolled in the sepsis group, and 40 healthy individuals were enrolled in the control group. Compared with the healthy control group, the serum GDF11 levels in the sepsis and septic shock groups were significantly increased (μg/L: 13.09±3.51, 19.28±5.36 vs. 4.17±0.92, both P < 0.05), and the serum KLRB1 levels were significantly decreased (ng/L: 57.36±11.28, 45.52±9.07 vs. 84.19±17.16, both P < 0.05), with more significant changes in the septic shock group (both P < 0.05). Among the 168 patients with septic shock, 96 survived and 72 died within 28 days. Compared with the survival group, the serum GDF11 level in the death group was significantly increased (μg/L: 24.24±4.81 vs. 15.56±4.62, P < 0.05), and the serum KLRB1 level was significantly decreased (ng/L: 28.53±8.69 vs. 58.26±9.45, P < 0.05). There were also statistically significant differences in sequential organ failure assessment (SOFA) score, acute physiology and chronic health evaluation II (APACHEII) score, procalcitonin (PCT), activated partial thromboplastin time (APTT), D-dimer, and Lac between the two groups. Multivariate Logistic regression analysis showed that SOFA score [odds ratio (OR) = 1.96, 95% confidence interval (95%CI) was 1.38-3.65), Lac (OR = 1.38, 95%CI was 1.09-2.01), GDF11 (OR = 1.54, 95%CI was 1.21-2.33) and KLRB1 (OR = 0.64, 95%CI was 0.41-0.78) were independent risk factors for 28-day death in patients with septic shock (all P < 0.05). Bivariate Pearson correlation analysis showed that SOFA score was significantly positively correlated with Lac and GDF11 (r value was 0.37 and 0.58, respectively, both P < 0.05), and significantly negatively correlated with KLRB1 (r = -0.72, P < 0.05). A nomogram model was constructed based on the risk factors for 28-day death in patients with septic shock. ROC curve analysis showed that the area under the ROC curve (AUC) of the nomogram model for predicting 28-day death in patients with septic shock was 0.963 (95%CI was 0.929-0.990), indicating that the model had good discrimination and predictive ability. The Hosmer-Lemeshow goodness-of-fit test (χ ² = 9.578, P = 0.295) and calibration curve indicated that the predicted values of the model were in good agreement with the actual values. DCA indicated that the model provided a high net benefit for clinical decision-making. CONCLUSIONS The serum GDF11 level was significantly increased and the KLRB1 level was significantly decreased in patients with septic shock. The nomogram model based on GDF11 and KLRB1 could more accurately evaluate the 28-day death of patients with septic shock.
Humans ; Shock, Septic/blood* ; Nomograms ; Prospective Studies ; Prognosis ; Male ; Female ; Middle Aged ; Aged ; Intensive Care Units

Hepatitis E is the liver inflammation caused by a hepatitis E virus infection.Immunocompetent patients with acute hepatitis E can spontaneously clear the infection,whereas immunosuppressed patients may not be able to clear the hepatitis E virus infection and develop chronic hepatitis.Most patients with hepatitis E are asymptomatic and present only with mild and persistent liver function abnormalities.This article reports a case of hepatitis E in an immunocompetent adult with elevated aminotransferases as the main manifestation.Hepatic fibrosis was detected by hepatic puncture biopsy.This report aims to remind other physicians to evaluate liver fibrosis when encountering acute hepatitis E,especially in patients with chronic liver disease.
Adult ; Humans ; Acute Disease ; Hepatitis E/complications* ; Liver Cirrhosis/etiology*

Objective To investigate the effects of a 45％high-fat diet(HFD)with isocaloric intake on energy metabolism and endurance exercise capacity in SD rats.Methods Twenty-four male SD rats were randomly divided into normal chow diet group(CON),HFD group,normal chow diet+exercise training group(CONT),and HFD+exercise training group(HFDT).The CON and CONT groups received normal chow diet,while the HFD and HFDT groups received a 45％high-fat diet with isocaloric intake.The HFDT and CONT groups underwent an endurance training of moderate-intensity running for 6 weeks.Body weight,fat mass,and lean mass were measured weekly.Energy expenditure and basal metabolic rate during rest and exercise states were measured using Pheno Master/Calo Treadmill system.Blood glucose,lipids,and creatine kinase levels were detected after the exhaustion test.Results In 6 weeks after intervention,the endurance exercise capacity was significantly enhanced in the HFDT group than the CONT group(P＜0.05).There were no obvious differences in body weight and body composition among the groups under isoenergetic feeding conditions.At rest,no statistical differences were observed in total energy expenditure and basal metabolic rate among the groups.However,prior to the 4th week,the CON group primarily metabolized carbohydrates while the HFD group primarily metabolized fats.But the carbohydrate metabolism was decreased and then increased,and the substrate metabolism rates eventually reached similar levels between the 2 groups on the 5th to 6th week.The HFDT group primarily metabolized fats while the CONT group primarily metabolized carbohydrates,with significant differences persisting after 6 weeks of training(P＜0.05).HFD led to elevated levels of serum cholesterol,triglycerides(TG),and high-density lipoprotein cholesterol(HDL-C),but,endurance training resulted in decreased lipid levels in the HFDT group,accompanied by an increase inβ-hydroxybutyrate(βHB)level(P＜0.05).Isoenergetic diets had no significant differences in their effects on liver and kidney function or muscle damage indicators.Conclusion An isoenergetic HFD can improve fat utilization ability and extend endurance exercise time in rats without altering body composition or affecting liver and kidney function.

Objective:To investigate the biomechanical stabilities of different internal screw fixations for Sanders type ⅡB calcaneal fractures using finite element analysis.Methods:Based on the CT scan data of a male volunteer's calcaneus (26 years old, 173 cm tall, weighing 70 kg), a three-dimensional finite element model of the calcaneus was established using digital medical software such as Mimics 22.0, Geomagic 12.0, Solidworks 2019, and ANSYS Workbench 2022. A three-dimensional finite element model of Sanders type ⅡB calcaneal fracture was also established. The following 3 kinds of screws were used: ① longitudinal screws: from the calcaneal tuberosity to the anterior part; ② transverse screws: from the lateral wall of the calcaneus to the sustentaculum tali; ③ vertical screws: from the base of the calcaneus to the talar dome, perpendicular to the posterior articular surface. The scheme of screw configuration was as follows: the longitudinal screws were divided into the upper, middle, and lower groups based on their entry points from the upper, middle, and lower parts of the calcaneal tuberosity. Based on different configurations (double transverse screws + single vertical screw, single transverse screw + single vertical screw, double transverse screws without a vertical screw, and single transverse screw without a vertical screw) 4 subgroups were further subdivided, resulting in a total of 12 models (a, b, c, d, e, f, g, h, i, j, k, l). Forces of 420 N and 200 N were applied to the posterior and middle subtalar joints, respectively, to simulate the load on the calcaneus during single-leg standing in adults. In each model, total deformation displacement, relative displacement of the sustentaculum tali fracture gap, relative displacement of the anterior fracture gap, relative displacement of the articular surface fracture gap, peak stress at the fracture ends and peak screw stress were analyzed.Results:The total deformation displacement was the lowest in models i and j, while models k and l exhibited the highest deformation displacement. The maximum deformation values in the remaining models varied only slightly. The average relative displacement of the sustentaculum tali fracture gap was the lowest in the upper group (0.27 mm) and relatively higher in the lower group, with the greatest variation seen in models k and l. The average relative displacement of the anterior fracture gap was the smallest in the lower group (0.16 mm), with models i and k performing the best. The relative displacement of the articular surface fracture gap remained at a low level across all models. The upper group had the lowest average peak stress at the fracture ends (60.20 MPa), while the middle and lower groups had similar values (103.88 MPa and 99.76 MPa, respectively). The upper group had the lowest average screw stress peak value (222.77 MPa), whereas models k and l in the lower group had the highest stress peaks, reaching 331.48 MPa and 349.82 MPa, respectively.Conclusions:Model i (inferior longitudinal screw + double transverse screws + single vertical screw) can be recommended in clinic because it demonstrates balanced performance in displacement and stress and a notable advantage in reducing overall deformation displacement and anterior fracture gap displacement. As longitudinal, vertical, and transverse screws each play their distinct role in calcaneal fracture fixation, surgeons should select an appropriate screw configuration based on the patient's needs.

Objective To investigate the risk factors for bronchopulmonary dysplasia(BPD)in twin preterm infants with a gestational age of<34 weeks,and to provide a basis for early identification of BPD in twin preterm infants in clinical practice.Methods A retrospective analysis was performed for the twin preterm infants with a gestational age of<34 weeks who were admitted to 22 hospitals nationwide from January 2018 to December 2020.According to their conditions,they were divided into group A(both twins had BPD),group B(only one twin had BPD),and group C(neither twin had BPD).The risk factors for BPD in twin preterm infants were analyzed.Further analysis was conducted on group B to investigate the postnatal risk factors for BPD within twins.Results A total of 904 pairs of twins with a gestational age of<34 weeks were included in this study.The multivariate logistic regression analysis showed that compared with group C,birth weight discordance of>25%between the twins was an independent risk factor for BPD in one of the twins(OR=3.370,95%CI:1.500-7.568,P<0.05),and high gestational age at birth was a protective factor against BPD(P<0.05).The conditional logistic regression analysis of group B showed that small-for-gestational-age(SGA)birth was an independent risk factor for BPD in individual twins(OR=5.017,95%CI:1.040-24.190,P<0.05).Conclusions The development of BPD in twin preterm infants is associated with gestational age,birth weight discordance between the twins,and SGA birth.

Objective To explore the distribution patterns of tongue and pulse manifestations and traditional Chinese medicine(TCM)syndrome elements in ischemic stroke(IS)patients of different genders and ages,thus to provide approaches for the prevention and treatment of stroke with TCM.Methods The criteria of six syndrome elements in Diagnostic Scale of Syndrome Elements in Ischemic Stroke were used for the comprehensive identification of syndrome elements in 5 254 cases of inpatients confirmed as IS at the first visit in Shenzhen Traditional Chinese Medicine Hospital from 2017 to 2023.Moreover,the tongue proper,tongue coating,and whose pulse manifestations ranking in the top five in terms of the frequency of occurrence were collected for comparison and analysis.Results(1)For the distribution of TCM syndrome elements in 5 254 cases of IS patients,phlegm-dampness syndrome was the most common syndrome type(3 544 cases,67.5%),and then came qi deficiency syndrome(653 cases,12.4%)and yin deficiency syndrome(453 cases,8.6%).There were statistically significant differences in the distribution of phlegm-dampness syndrome,internal heat syndrome,and yin deficiency syndrome between the male and the female(P＜0.01).And the distribution of phlegm-dampness syndrome,qi deficiency syndrome,internal wind syndrome,and internal heat syndrome in the youth differed from that in the middle-aged and elderly(P＜0.01).(2)The tongue and pulse manifestations in IS patients with the leading six detection rates which ranked in descending order of frequency of occurrence were as follows:dull tongue(1 993 cases,37.9%),dark red tongue(1 907 cases,36.3%),thin and white coating(1 885 cases,35.9%),wiry and slippery pulse(1 714 cases,32.6%),white and greasy coating(1 679 cases,32.0%),and wiry and thready pulse(1 609 cases,30.6%).The detection rates of tongue and pulse manifestations such as light red tongue,thin and white coating in the youth group were significantly higher than those in the middle-aged and elderly group,and the detection rates of dark red tongue,and tooth-marked tongue in the middle-aged and elderly group were significantly higher than those in the youth group,the differences all being statistically significant(P＜0.05).The female patients had higher detection rates of dull tongue,thin and white coating,thin and yellow coating,wiry and thready pulse,and deep and thready pulse than male patients,while the male patients had higher detection rates of dark red tongue,red tongue,white and greasy coating,yellow and thick-greasy coating,white and thick-greasy coating,wiry and slippery pulse,and slippery pulse than the females,and the differences were all statistically significant(P＜0.05 or P＜0.01).Higher detection rate of thin and white coating was shown in the youth female than that in the youth male,while higher detection rate of wiry and slippery pulse was shown in the youth male than that in the youth female,and the differences were all statistically significant(P＜0.05 or P＜0.01).The middle-aged and elderly female patients had higher detection rates of dull tongue,thin and white coating,wiry and thready pulse,and deep and thready pulse than the middle-aged and elderly male patients,while the middle-aged and elderly male patients had higher detection rates of dark red tongue,red tongue,white and greasy coating,white and thick-greasy coating,yellow and thick-greasy coating,wiry and slippery pulse,and slippery pulse than the middle-aged and elderly female patients,the differences being all statistically significant(P＜0.05 or P＜0.01).Conclusion Phlegm-dampness syndrome,qi deficiency syndrome,and yin deficiency syndrome exert a significant effect on IS,and phlegm-dampness syndrome is the most common syndrome type.Factors such as gender and age have influences on the distribution of TCM syndrome in patients with IS.

Objective:To establish a feasible mouse model of post-stroke dysphagia(PSD).Methods:Thirty C57BL/6 male mice were randomly divided into a sham-operated group(Sham)and a model group(PSD),and the PSD mouse model was made by the photothrombosis method(PT)method,and the sham-operated group was only injec-ted with rose bengal staining solution in the tail vein.The cerebral blood flow of the mice was measured by laser scatter imaging,the ratio of cerebral infarct area was detected by TTC staining,the electromyographic area of the in vivo pha-ryngeal muscle group of mice swallowing was recorded by a multi-conductor physiological recorder MP160,the drinking function of the mice was measured by the 4-min water drinking experiment,and the weight changes were recorded,respectively,at 1,3,and 7 d.Results:Cerebral blood flow decreased at all time points,with a sharp drop in cerebral blood flow at 1 d,gradual recovery of cerebral blood flowat 3 and 7 d,establishment of collateral circulation,and gradu-al reduction of cerebral infarction area;compared with the Sham group,the myoelectric area of the PSD group was reduced at 1 and 3 d(P＜0.05),but with a trend of gradual recovery,and there was no significant difference between the PSD group and the Sham group at 7 d,and water consumption and weight decreased at 4 min at 1,3,and 7 d(P＜0.05).Conclusion:The mice showed some degree of dysphagia symptoms and are expected to be a translational model for PSD.

Objective To investigate the causes of false-positive rifampicin resistant results in Xpert MTB/RIF (Xpert) test for samples with extremely low bacterial loads. Methods A total of 346 samples with extremely low bacterial loads and rifampicin-resistance results from Wuhan Pulmonary Hospital between June 2017 and March 2021 were collected. The samples were divided into probe-delayed and probe dropout groups based on amplification results. Mycobacterial culture and proportion method drug susceptibility testing were performed, and Xpert retesting was conducted for strains with discordant drug susceptibility results. Results Out of the 346 samples, 195 samples (56.36%) were positive in culture. Upon Xpert retesting, among the 64 Xpert-resistant but proportion method-sensitive strains, the proportions of samples in the delayed probe group with mutations in the probe D and probe E were 4.55%（1/22） and 13.33%（2/15）, respectively. In the probe dropout group, the proportions of samples with mutations in the probe A and probe E were 75.00% (9/12) and 80.00% (8/10), respectively. The false-positive rifampicin resistance rates in the delayed probe and probe dropout groups were 78.26% (36/46) and 3.36% (5/149), respectively. Conclusion The main reasons for false-positive rifampicin resistance results in the Xpert test for samples with extremely low bacterial loads were probe delay in the D and E probes, followed by low-level drug-resistant mutations in the A and E probes.