Background Lead is a typical persistent environmental pollutant that can accumulate in bones for decades. During pregnancy, alterations in calcium metabolism promote the mobilization of bone lead, resulting in secondary exposure; however, the mechanisms by which pregnancy-associated bone lead mobilization affects maternal renal function remain unclear. Objective To investigate the role of mitochondrial dysfunction in pregnancy-related bone lead mobilization-induced renal injury. Methods Newly weaned female Wistar rats were randomly assigned to a control or a lead-exposed group administered either 0.05% sodium acetate or 0.05% lead acetate in drinking water. Following a 4-week lead exposure and a 4-week washout period, the females were co-housed with healthy age-matched males for mating. Rats were sacrificed at early (gestational day 3) and late (gestational day 17) pregnancystages, respectively. Renal histopathology was assessed using hematoxylin and eosin staining staining. Mitochondria-related indicators, including oxidative stress, inflammatory responses, and energy metabolism, were measured. Differential metabolites were identified using serum metabolomics. Results Renal injury in the lead-exposed pregnant rats progressed in a time-dependent manner, characterized by degeneration of proximal tubular epithelial cells, glomerular hyaline changes, and interstitial inflammatory cell infiltration. Repeated measures ANOVA indicated a significant interaction between the treatment factor (lead exposure) and the temporal factor (gestational stage) on renal injury (P<0.001). Further analysis of mitochondrial function-related indicators in late-pregnancy renal tissue revealed that the lead exposure group exhibited significantly increased levels of malondialdehyde (MDA) and reactive oxygen species (ROS) (P<0.05), accompanied by a reduction in superoxide dismutase (SOD) and reduced glutathione (GSH) activities (P<0.05); regarding inflammatory markers, levels of interleukin-18 (IL-18) and interleukin-1β (IL-1β) were elevated (P<0.01), whereas interleukin-33 (IL-33) was decreased in the lead-exposed group (P<0.05); energy metabolism-related indicators, including adenosine triphosphate (ATP) level, Na⁺-K⁺-ATPase and Ca²⁺-Mg²⁺-ATPase activities, and mitochondrial respiratory chain complexes I, III, and V activities, were significantly reduced (P<0.05) in the lead-exposed gorup. The typical differential metabolite N-methylisoleucine, identified through serum metabolomics analysis, was negatively correlated with blood lead levels, kidney injury scores, and IL-1β, while positively correlated with catalase (CAT) activity and Ca²⁺-Mg²⁺-ATPase. Conclusions Mitochondrial dysfunction may play a critical role in renal injury induced by bone lead mobilization during late gestation.

Objective:To explore the potential profile characteristics and influencing factors of rehabilitation motivation in elderly patients with first stroke, so as to provide reference for promoting precise rehabilitation mode.Methods:A convenience sampling method was employed to conduct a cross-sectional survey of elderly patients with first stroke admitted to the Huanhu Hospital Affiliated to Tianjin Medical University from October 2024 to March 2025. The survey utilized a general information questionnaire, the Motivation in Stroke Patients for Rehabilitation Scale, the Perceived Social Support Scale (PSSS), the Exercise Adherence Questionnaire (EAQ), and the Stroke Stigma Scale (SSS). Potential categories of rehabilitation motivation among elderly patients with first stroke were identified using latent profile analysis, and the influencing factors of these potential categories were explored using the ordered multinomial Logistic regression.Results:A total of 290 survey questionnaires were distributed, and 281 valid questionnaires were collected, with an effective response rate of 96.9%(281/290). Among 281 elderly patients with first stroke, there were 152 males and 129 females, with an age of (68.68 ± 6.89) years. The score of the Motivation in Stroke Patients for Rehabilitation Scale was 56.00 (36.00, 68.00) points. Rehabilitation motivation among elderly patients with first stroke could be categorized into three groups: low motivation-lack of family support and unclear goals group (44.1%, 124/281), moderate motivation-social reintegration driven but insufficient behavior group (41.3%, 116/281), and high motivation autonomous planning adaptation and value internalization group (14.6%, 41/281). The ordered multinomial Logistic regression analysis showed that compared to patients aged ≥80 years, patients aged 60-69 years were less likely to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=0.231, P<0.05). Compared to patients with a per capita monthly income of ≥5 001 yuan, patients with a per capita monthly income of 3 001-5 000 yuan were more likely to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=2.340, P<0.05). Compared to heavily dependent patients, patients who were completely independent ( OR=0.160, P<0.05), mildly dependent ( OR=0.155, P<0.01), and moderately dependent ( OR=0.211, P<0.05) were less likely to belong to the high motivation autonomous planning adaptation and value internalization group. The higher the EAQ score, the more likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=1.139, P<0.01). The higher the PSSS score, the more likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=1.108, P<0.01). The higher the SSS score, the less likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=0.787, P<0.01). Conclusions:Healthcare professionals can develop targeted intervention strategies based on the characteristics and influencing factors of patients' different rehabilitation motivations, thereby enhancing their rehabilitation motivation and promoting patient recovery.

Objective:To explore the potential categories of internal ability of elderly patients with ischemic stroke, identify the influencing factors and propose corresponding nursing interventions.Methods:This was a cross-sectional study. From January 2025 to May 2025, the elderly patients with ischemic stroke in Tianjin Huanhu Hospital were selected by convenient sampling method. The general information questionnaire, the Internal Capacity Assessment Scale for the Older People, the Health Literacy Scale for stroke patients and the Perceived Social Support Scale were used to investigate. To determine latent categories of patients' intrinsic capacity, potential profile analysis was employed. Subsequently, multivariable Logistic regression examined factors associated with these categories.Results:A total of 260 survey questionnaires were distributed, and 256 valid questionnaires were finally collected, with an effective response rate of 98.46% (256/260). Among of them, there were 166 males and 90 females, aged 68.00 (63.00, 74.00) years.The intrinsic ability of elderly patients with ischemic stroke could be divided into three potential categories: low sensation-low exercise group (27.0%, 69/256), relatively stable intrinsic ability group (37.5%, 96/256) and low cognition-low psychology group (35.5%, 91/256). Multivariable Logistic regression showed that advanced age (compared to the low sensation-low exercise group, OR=0.902; compared to the relatively stable intrinsic ability group, OR=0.813), smoking (compared to the low sensation-low exercise group, OR=0.459; compared to the relatively stable intrinsic ability group, OR=0.442), the lower the Barthel index (compared to the low sensation-low exercise group, ≤40 points with OR=0.157; 41-60 points with OR=0.285) were more likely to enter the low cognition-low psychology group (all P<0.05); other chronic disease types ≤1 (compared to the low cognition-low psychology group, OR=2.630), higher health literacy scores (compared to the low cognition-low psychology group, OR=1.033) were more likely to enter the relatively stable intrinsic ability group (both P<0.05); and stroke frequency was the first occurrence (compared to the low cognition-low psychology group, OR=2.725) was more likely to enter the low sensation-low exercise group ( P<0.05). Conclusions:In older adults with ischemic stroke, the characteristics of intrinsic ability are clearly categorized. To enhance patient outcomes, healthcare professionals are advised to tailor nursing interventions based on the unique features and specific influencing factors associated with each potential category.

Objective:To investigate the clinicopathological characteristics of patients with early gastric carcinoma with lymphoid stroma(EGCLS).Methods:A retrospective analysis was conducted on 27 consecutive patients with EGCLS who underwent radical surgery at The Second People's Hospital of Changzhou between January 2007 and December 2023.Sixty-nine cases of conventional early gastric carcinoma with matched T stages were randomly selected as controls.Immunohistochemical staining was performed to detect the expression of P53,mismatch repair(MMR)proteins,programmed death-ligand 1(PD-L1),E-cadherin,and human epidermal growth factor receptor 2(HER2)in the study cohort.FISH analysis was conducted on HER2 2+cases,and in situ hybridization was used to detect Epstein-Barr virus(EBV).Res-ults:No significant differences were observed between the two groups in terms of patient sex,age,tumor location,size,ulceration,lymph-ovascular or perineural invasion,tumor budding grade,P53 expression,or MMR protein deficiency.The EGCLS group showed significantly higher proportions of SM2 invasion(88.9%),poor tumor differentiation(70.4%),pushing tumor border(48.1%),PD-L1 positivity(59.3%),Epstein-Barr virus-encoded small RNA(EBER)positivity(55.6%),and abnormal E-cadherin expression(48.1%)compared to the control group(59.4%,46.4%,18.8%,24.6%,1.4%,and 23.2%,respectively;P<0.05).The frequency of lymph node metastasis(7.4%)and the pro-portion of elevated macroscopic type(14.8%)in the EGCLS group were significantly lower than in the control group(30.4%and 40.6%,re-spectively;P<0.05).Lymphovascular invasion,tumor budding grade,and non-EGCLS status were identified as risk factors for lymph node metastasis,with lymphovascular invasion being the only independent risk factor.Conclusions:EGCLS is a rare subtype of early gastric car-cinoma characterized by a low frequency of lymph node metastasis and a high proportion of EBER positivity or MMR protein deficiency.En-doscopic resection or immunotherapy may be preferred treatment options for patients who are not suitable candidates for surgery.

Monkeypox is a zoonotic disease caused by the monkeypox virus(MPXV),which belongs to the or-thopoxvirus genus along with the smallpox virus.In Jul.2022 and Aug.2024,the World Health Organization(WHO)declared monkeypox outbreaks"public health emergencies of international concern"twice.The virus pri-marily spreads through close contact,which can be transmitted from infected animals to humans and among hu-mans.Pregnant women are susceptible to MPXV,and the virus can be transmitted vertically to the fetus through the placenta,with trophoblastic cells in the placenta considered to be the targets for MPXV replication.MPVX in-fection during pregnancy may lead to adverse pregnancy outcomes such as miscarriage,premature birth and fetal death,and the clinical treatment outcomes are closely associated with the subtype of the virus.The diagnosis of monkeypox mainly relies on MPXV DNA test.To prevent monkeypox,women who are at the childbearing age should complete the vaccination before the pregnancy and avoid contacting with the patients with monkeypox or the animals that may carry MPXV.

Objective To investigate the effects of Bushen Zhuanggu decoction on total N-terminal propeptide of type Ⅰprocollagen(t-PINP)and β-C-terminal telopeptide of type Ⅰ collagen(β-CTX)in patients with knee osteoarthritis(KOA).Methods A total of 120 patients with liver-kidney deficiency KOA treated in Linping District Hospital of Traditional Chinese Medicine from June 2021 to April 2024 were selected and divided into study group and control group according to random number table method,with 60 cases in each group.The patients of control group was given oral treatment with etocoxib and omeprazole,and patients of study group was given oral treatment of Bushen Zhuanggu decoction on the basis of control group.Both groups were treated for one month.The clinical efficacy,TCM syndrome scores,serum t-PINP and β-CTX leves,t-PINP/β-CTX,Western Ontario and Mcmaster Universities osteoarthritis index(WOMAC)scores and adverse reactions during treatment were compared between two groups.Results The total effective rate in study group was significantly higher than that in control group(x2=4.5 13,P=0.034).After treatment,the TCM syndrome scores,serum t-PINP and β-CTX levels and WOMAC scores in two groups were significantly lower than before treatment,and t-PINP/β-CTX were significantly higher than before treatment(P＜0.05).The TCM syndrome scores,serum t-PINP and β-CTX levels and WOMAC scores in study group were significantly lower than those in control group,and t-PINP/β-CTX was significantly higher than that in control group(P＜0.05).There was no significant difference in incidence of adverse reactions between two groups(x2=0.686,P=0.408).Conclusion Bushen Zhuanggu decoction can improve the clinical efficacy of KOA patients with liver-kidney deficiency,relieve clinical symptoms and pain,increase t-PINP/β-CTX,and reduce the incidence of adverse reactions.

Objective:To compare the efficacy of hip hemiarthroplasty via the fracture line approach versus modified Harding approach in the treatment of unstable intertrochanteric fractures in the elderly.Methods:A retrospective cohort study was conducted to analyze the clinical data of 79 elderly patients with unstable intertrochanteric fractures who were admitted to Zhengzhou Orthopaedic Hospital between July 2018 and February 2024, including 17 males and 62 females, aged 80-96 years [(84.0±9.6)years]. According to the AO classification, the fractures were classified as type A2 in 61 patients and type A3 in 18. All the patients underwent hip hemiarthroplasty, 33 of whom were treated via the fracture line approach (fracture line approach group) and 46 via the modified Harding approach (modified Harding approach group). The incision length, operation duration, intraoperative blood loss, blood transfusion volume, and weight-bearing time were documented. At 1 month, 3 months after surgery and at the last follow-up, hip function and pain were assessed using the Harris hip score and visual analogue scale (VAS). Postoperative dislocation rate, fracture nonunion rate, incidence of other complications (vascular injury, neurologic impairment, prosthesis loosening, lower extremity venous thrombosis, and surgical site infection) and 12-month mortality rate were recorded.Results:All the patients were followed up for 12-36 months [(18.0±5.1)months]. The operation duration and intraoperative blood loss were (68.2±8.4)minutes and (286.6±63.7)ml in the fracture line approach group, which were significantly shorter or less than (72.4±6.7)minutes and (321.3±76.2)ml in the modified Harding approach group ( P<0.05). However, there were no statistically significant differences in the incision length, blood transfusion volume or weight-bearing time between the two groups ( P>0.05). Harris hip scores and VAS scores at 1 month, 3 months, and at the last follow-up showed no significant differences between the two groups ( P>0.05). The dislocation rate was 0 in the fracture line approach group, superior to 13% in the modified Harding approach group ( P<0.05). There were no statistically significant differences in the fracture nonunion rate, incidence of other complications, or 12-month mortality rate between the two groups ( P>0.05). Conclusion:Compared with the modified Harding approach, hip hemiarthroplasty via the fracture line approach in the treatment of unstable intertrochanteric fractures in the elderly can shorten the operation time, reduce intraoperative blood loss, and lower the postoperative dislocation rate.

The prevalence of periodontitis in China is as high as 74.2％,making it the leading cause of tooth loss in adults and severely impacting both oral and overall health.The treatment of periodontitis and periodontal tissue regeneration are global challenges of significant concern.GE Shaohua's group at School and Hospital of Stomatology,Shandong University has focused on the key scientific issue of"re-modeling the periodontal inflammatory microenvironment and optimizing tissue repair and regeneration".They have elucidated the mechanisms underlying the persistence of periodontitis,developed bioactive ma-terials to enhance stem cell regenerative properties,and constructed a series of guided tissue regeneration barrier membranes to promote periodontal tissue repair,leading to the establishment of a comprehensive technology system for the treatment of periodontitis.Specific achievements and progress include:(1)Elucidating the mechanism by which key periodontal pathogens evade antimicrobial autophagy,leading to inflammatory damage;developing intelligent antimicrobial hydrogels and nanosystems,and creating metal-polyphenol network microsphere capsules to reshape the periodontal inflammatory microenviron-ment;(2)Explaining the mechanisms by which nanomaterial structures and electroactive interfaces regu-late stem cell behavior,developing optimized nanostructures and electroactive biomaterials,thereby effec-tively enhancing the regenerative repair capabilities of stem cells;(3)Creating a series of biphasic heterogeneous barrier membranes,refining guided tissue regeneration and in situ tissue engineering techniques,stimulating the body's intrinsic repair potential,and synergistically promoting the structural regeneration and functional reconstruction of periodontal tissues.The research outcomes of the group have innovated the fundamental theories of periodontal tissue regeneration,broken through foreign technologi-cal barriers and patent blockades,established a cascade repair strategy for periodontal regeneration,and enhanced China's core competitiveness in the field of periodontal tissue regeneration.

Objective:To explore the potential profile characteristics and influencing factors of rehabilitation motivation in elderly patients with first stroke, so as to provide reference for promoting precise rehabilitation mode.Methods:A convenience sampling method was employed to conduct a cross-sectional survey of elderly patients with first stroke admitted to the Huanhu Hospital Affiliated to Tianjin Medical University from October 2024 to March 2025. The survey utilized a general information questionnaire, the Motivation in Stroke Patients for Rehabilitation Scale, the Perceived Social Support Scale (PSSS), the Exercise Adherence Questionnaire (EAQ), and the Stroke Stigma Scale (SSS). Potential categories of rehabilitation motivation among elderly patients with first stroke were identified using latent profile analysis, and the influencing factors of these potential categories were explored using the ordered multinomial Logistic regression.Results:A total of 290 survey questionnaires were distributed, and 281 valid questionnaires were collected, with an effective response rate of 96.9%(281/290). Among 281 elderly patients with first stroke, there were 152 males and 129 females, with an age of (68.68 ± 6.89) years. The score of the Motivation in Stroke Patients for Rehabilitation Scale was 56.00 (36.00, 68.00) points. Rehabilitation motivation among elderly patients with first stroke could be categorized into three groups: low motivation-lack of family support and unclear goals group (44.1%, 124/281), moderate motivation-social reintegration driven but insufficient behavior group (41.3%, 116/281), and high motivation autonomous planning adaptation and value internalization group (14.6%, 41/281). The ordered multinomial Logistic regression analysis showed that compared to patients aged ≥80 years, patients aged 60-69 years were less likely to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=0.231, P<0.05). Compared to patients with a per capita monthly income of ≥5 001 yuan, patients with a per capita monthly income of 3 001-5 000 yuan were more likely to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=2.340, P<0.05). Compared to heavily dependent patients, patients who were completely independent ( OR=0.160, P<0.05), mildly dependent ( OR=0.155, P<0.01), and moderately dependent ( OR=0.211, P<0.05) were less likely to belong to the high motivation autonomous planning adaptation and value internalization group. The higher the EAQ score, the more likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=1.139, P<0.01). The higher the PSSS score, the more likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=1.108, P<0.01). The higher the SSS score, the less likely patients were to belong to the high motivation autonomous planning adaptation and value internalization group ( OR=0.787, P<0.01). Conclusions:Healthcare professionals can develop targeted intervention strategies based on the characteristics and influencing factors of patients' different rehabilitation motivations, thereby enhancing their rehabilitation motivation and promoting patient recovery.

Objective:To explore the potential categories of internal ability of elderly patients with ischemic stroke, identify the influencing factors and propose corresponding nursing interventions.Methods:This was a cross-sectional study. From January 2025 to May 2025, the elderly patients with ischemic stroke in Tianjin Huanhu Hospital were selected by convenient sampling method. The general information questionnaire, the Internal Capacity Assessment Scale for the Older People, the Health Literacy Scale for stroke patients and the Perceived Social Support Scale were used to investigate. To determine latent categories of patients' intrinsic capacity, potential profile analysis was employed. Subsequently, multivariable Logistic regression examined factors associated with these categories.Results:A total of 260 survey questionnaires were distributed, and 256 valid questionnaires were finally collected, with an effective response rate of 98.46% (256/260). Among of them, there were 166 males and 90 females, aged 68.00 (63.00, 74.00) years.The intrinsic ability of elderly patients with ischemic stroke could be divided into three potential categories: low sensation-low exercise group (27.0%, 69/256), relatively stable intrinsic ability group (37.5%, 96/256) and low cognition-low psychology group (35.5%, 91/256). Multivariable Logistic regression showed that advanced age (compared to the low sensation-low exercise group, OR=0.902; compared to the relatively stable intrinsic ability group, OR=0.813), smoking (compared to the low sensation-low exercise group, OR=0.459; compared to the relatively stable intrinsic ability group, OR=0.442), the lower the Barthel index (compared to the low sensation-low exercise group, ≤40 points with OR=0.157; 41-60 points with OR=0.285) were more likely to enter the low cognition-low psychology group (all P<0.05); other chronic disease types ≤1 (compared to the low cognition-low psychology group, OR=2.630), higher health literacy scores (compared to the low cognition-low psychology group, OR=1.033) were more likely to enter the relatively stable intrinsic ability group (both P<0.05); and stroke frequency was the first occurrence (compared to the low cognition-low psychology group, OR=2.725) was more likely to enter the low sensation-low exercise group ( P<0.05). Conclusions:In older adults with ischemic stroke, the characteristics of intrinsic ability are clearly categorized. To enhance patient outcomes, healthcare professionals are advised to tailor nursing interventions based on the unique features and specific influencing factors associated with each potential category.